Add files using upload-large-folder tool

cmake/share/cmake-3.31/Help/command/add_compile_definitions.rst

@@ -0,0 +1,33 @@
+add_compile_definitions
+-----------------------
+
+.. versionadded:: 3.12
+
+Add preprocessor definitions to the compilation of source files.
+
+.. code-block:: cmake
+
+  add_compile_definitions(<definition> ...)
+
+Adds preprocessor definitions to the compiler command line.
+
+The preprocessor definitions are added to the :prop_dir:`COMPILE_DEFINITIONS`
+directory property for the current ``CMakeLists`` file. They are also added to
+the :prop_tgt:`COMPILE_DEFINITIONS` target property for each target in the
+current ``CMakeLists`` file.
+
+Definitions are specified using the syntax ``VAR`` or ``VAR=value``.
+Function-style definitions are not supported. CMake will automatically
+escape the value correctly for the native build system (note that CMake
+language syntax may require escapes to specify some values).
+
+.. versionadded:: 3.26
+  Any leading ``-D`` on an item will be removed.
+
+.. |command_name| replace:: ``add_compile_definitions``
+.. include:: GENEX_NOTE.txt
+
+See Also
+^^^^^^^^
+
+* The command :command:`target_compile_definitions` adds target-specific definitions.

cmake/share/cmake-3.31/Help/command/add_compile_options.rst

@@ -0,0 +1,67 @@
+add_compile_options
+-------------------
+
+Add options to the compilation of source files.
+
+.. code-block:: cmake
+
+  add_compile_options(<option> ...)
+
+Adds options to the :prop_dir:`COMPILE_OPTIONS` directory property.
+These options are used when compiling targets from the current
+directory and below.
+
+.. note::
+
+  These options are not used when linking.
+  See the :command:`add_link_options` command for that.
+
+Arguments
+^^^^^^^^^
+
+.. |command_name| replace:: ``add_compile_options``
+.. include:: GENEX_NOTE.txt
+
+.. include:: OPTIONS_SHELL.txt
+
+Example
+^^^^^^^
+
+Since different compilers support different options, a typical use of
+this command is in a compiler-specific conditional clause:
+
+.. code-block:: cmake
+
+  if (MSVC)
+      # warning level 4
+      add_compile_options(/W4)
+  else()
+      # additional warnings
+      add_compile_options(-Wall -Wextra -Wpedantic)
+  endif()
+
+To set per-language options, use the :genex:`$<COMPILE_LANGUAGE>`
+or :genex:`$<COMPILE_LANGUAGE:languages>` generator expressions.
+
+See Also
+^^^^^^^^
+
+* This command can be used to add any options. However, for
+  adding preprocessor definitions and include directories it is recommended
+  to use the more specific commands :command:`add_compile_definitions`
+  and :command:`include_directories`.
+
+* The command :command:`target_compile_options` adds target-specific options.
+
+* This command adds compile options for all languages.
+  Use the :genex:`COMPILE_LANGUAGE` generator expression to specify
+  per-language compile options.
+
+* The source file property :prop_sf:`COMPILE_OPTIONS` adds options to one
+  source file.
+
+* :command:`add_link_options` adds options for linking.
+
+* :variable:`CMAKE_<LANG>_FLAGS` and :variable:`CMAKE_<LANG>_FLAGS_<CONFIG>`
+  add language-wide flags passed to all invocations of the compiler.
+  This includes invocations that drive compiling and those that drive linking.

cmake/share/cmake-3.31/Help/command/add_custom_command.rst

@@ -0,0 +1,699 @@
+add_custom_command
+------------------
+
+Add a custom build rule to the generated build system.
+
+There are two main signatures for ``add_custom_command``.
+
+.. _`add_custom_command(OUTPUT)`:
+
+Generating Files
+^^^^^^^^^^^^^^^^
+
+The first signature is for adding a custom command to produce an output:
+
+.. code-block:: cmake
+
+  add_custom_command(OUTPUT output1 [output2 ...]
+                     COMMAND command1 [ARGS] [args1...]
+                     [COMMAND command2 [ARGS] [args2...] ...]
+                     [MAIN_DEPENDENCY depend]
+                     [DEPENDS [depends...]]
+                     [BYPRODUCTS [files...]]
+                     [IMPLICIT_DEPENDS <lang1> depend1
+                                      [<lang2> depend2] ...]
+                     [WORKING_DIRECTORY dir]
+                     [COMMENT comment]
+                     [DEPFILE depfile]
+                     [JOB_POOL job_pool]
+                     [JOB_SERVER_AWARE <bool>]
+                     [VERBATIM] [APPEND] [USES_TERMINAL]
+                     [CODEGEN]
+                     [COMMAND_EXPAND_LISTS]
+                     [DEPENDS_EXPLICIT_ONLY])
+
+This defines a command to generate specified ``OUTPUT`` file(s).
+A target created in the same directory (``CMakeLists.txt`` file)
+that specifies any output of the custom command as a source file
+is given a rule to generate the file using the command at build time.
+
+Do not list the output in more than one independent target that
+may build in parallel or the instances of the rule may conflict.
+Instead, use the :command:`add_custom_target` command to drive the
+command and make the other targets depend on that one.  See the
+`Example: Generating Files for Multiple Targets`_ below.
+
+The options are:
+
+``APPEND``
+  Append the ``COMMAND`` and ``DEPENDS`` option values to the custom
+  command for the first output specified.  There must have already
+  been a previous call to this command with the same output.
+
+  If the previous call specified the output via a generator expression,
+  the output specified by the current call must match in at least one
+  configuration after evaluating generator expressions.  In this case,
+  the appended commands and dependencies apply to all configurations.
+
+  The ``COMMENT``, ``MAIN_DEPENDENCY``, and ``WORKING_DIRECTORY``
+  options are currently ignored when ``APPEND`` is given, but may be
+  used in the future.
+
+``BYPRODUCTS``
+  .. versionadded:: 3.2
+
+  Specify the files the command is expected to produce but whose
+  modification time may or may not be newer than the dependencies.
+  If a byproduct name is a relative path it will be interpreted
+  relative to the build tree directory corresponding to the
+  current source directory.
+  Each byproduct file will be marked with the :prop_sf:`GENERATED`
+  source file property automatically.
+
+  *See policy* :policy:`CMP0058` *for the motivation behind this feature.*
+
+  Explicit specification of byproducts is supported by the
+  :generator:`Ninja` generator to tell the ``ninja`` build tool
+  how to regenerate byproducts when they are missing.  It is
+  also useful when other build rules (e.g. custom commands)
+  depend on the byproducts.  Ninja requires a build rule for any
+  generated file on which another rule depends even if there are
+  order-only dependencies to ensure the byproducts will be
+  available before their dependents build.
+
+  The :ref:`Makefile Generators` will remove ``BYPRODUCTS`` and other
+  :prop_sf:`GENERATED` files during ``make clean``.
+
+  This keyword cannot be used with ``APPEND`` (see policy :policy:`CMP0175`).
+  All byproducts must be set in the first call to
+  ``add_custom_command(OUTPUT...)`` for the output files.
+
+  .. versionadded:: 3.20
+    Arguments to ``BYPRODUCTS`` may use a restricted set of
+    :manual:`generator expressions <cmake-generator-expressions(7)>`.
+    :ref:`Target-dependent expressions <Target-Dependent Expressions>`
+    are not permitted.
+
+  .. versionchanged:: 3.28
+    In targets using :ref:`file sets`, custom command byproducts are now
+    considered private unless they are listed in a non-private file set.
+    See policy :policy:`CMP0154`.
+
+``COMMAND``
+  Specify the command-line(s) to execute at build time.
+  At least one ``COMMAND`` would normally be given, but certain patterns
+  may omit it, such as adding commands in separate calls using `APPEND`.
+
+  If more than one ``COMMAND`` is specified, they will be executed in order,
+  but *not* necessarily composed into a stateful shell or batch script.
+  To run a full script, use the :command:`configure_file` command or the
+  :command:`file(GENERATE)` command to create it, and then specify
+  a ``COMMAND`` to launch it.
+
+  The optional ``ARGS`` argument is for backward compatibility and
+  will be ignored.
+
+  If ``COMMAND`` specifies an executable target name (created by the
+  :command:`add_executable` command), it will automatically be replaced
+  by the location of the executable created at build time if either of
+  the following is true:
+
+  * The target is not being cross-compiled (i.e. the
+    :variable:`CMAKE_CROSSCOMPILING` variable is not set to true).
+  * .. versionadded:: 3.6
+      The target is being cross-compiled and an emulator is provided (i.e.
+      its :prop_tgt:`CROSSCOMPILING_EMULATOR` target property is set).
+      In this case, the contents of :prop_tgt:`CROSSCOMPILING_EMULATOR` will be
+      prepended to the command before the location of the target executable.
+
+  If neither of the above conditions are met, it is assumed that the
+  command name is a program to be found on the ``PATH`` at build time.
+
+  Arguments to ``COMMAND`` may use
+  :manual:`generator expressions <cmake-generator-expressions(7)>`.
+  Use the :genex:`TARGET_FILE` generator expression to refer to the location
+  of a target later in the command line (i.e. as a command argument rather
+  than as the command to execute).
+
+  Whenever one of the following target based generator expressions are used as
+  a command to execute or is mentioned in a command argument, a target-level
+  dependency will be added automatically so that the mentioned target will be
+  built before any target using this custom command
+  (see policy :policy:`CMP0112`).
+
+    * ``TARGET_FILE``
+    * ``TARGET_LINKER_FILE``
+    * ``TARGET_SONAME_FILE``
+    * ``TARGET_PDB_FILE``
+
+  This target-level dependency does NOT add a file-level dependency that would
+  cause the custom command to re-run whenever the executable is recompiled.
+  List target names with the ``DEPENDS`` option to add such file-level
+  dependencies.
+
+
+``COMMENT``
+  Display the given message before the commands are executed at
+  build time.  This will be ignored if ``APPEND`` is given, although a future
+  version may use it.
+
+  .. versionadded:: 3.26
+    Arguments to ``COMMENT`` may use
+    :manual:`generator expressions <cmake-generator-expressions(7)>`.
+
+``DEPENDS``
+  Specify files on which the command depends.  Each argument is converted
+  to a dependency as follows:
+
+  1. If the argument is the name of a target (created by the
+     :command:`add_custom_target`, :command:`add_executable`, or
+     :command:`add_library` command) a target-level dependency is
+     created to make sure the target is built before any target
+     using this custom command.  Additionally, if the target is an
+     executable or library, a file-level dependency is created to
+     cause the custom command to re-run whenever the target is
+     recompiled.
+
+  2. If the argument is an absolute path, a file-level dependency
+     is created on that path.
+
+  3. If the argument is the name of a source file that has been
+     added to a target or on which a source file property has been set,
+     a file-level dependency is created on that source file.
+
+  4. If the argument is a relative path and it exists in the current
+     source directory, a file-level dependency is created on that
+     file in the current source directory.
+
+  5. Otherwise, a file-level dependency is created on that path relative
+     to the current binary directory.
+
+  If any dependency is an ``OUTPUT`` of another custom command in the same
+  directory (``CMakeLists.txt`` file), CMake automatically brings the other
+  custom command into the target in which this command is built.
+
+  .. versionadded:: 3.16
+    A target-level dependency is added if any dependency is listed as
+    ``BYPRODUCTS`` of a target or any of its build events in the same
+    directory to ensure the byproducts will be available.
+
+  If ``DEPENDS`` is not specified, the command will run whenever
+  the ``OUTPUT`` is missing; if the command does not actually
+  create the ``OUTPUT``, the rule will always run.
+
+  .. versionadded:: 3.1
+    Arguments to ``DEPENDS`` may use
+    :manual:`generator expressions <cmake-generator-expressions(7)>`.
+
+``COMMAND_EXPAND_LISTS``
+  .. versionadded:: 3.8
+
+  Lists in ``COMMAND`` arguments will be expanded, including those
+  created with
+  :manual:`generator expressions <cmake-generator-expressions(7)>`,
+  allowing ``COMMAND`` arguments such as
+  ``${CC} "-I$<JOIN:$<TARGET_PROPERTY:foo,INCLUDE_DIRECTORIES>,;-I>" foo.cc``
+  to be properly expanded.
+
+  This keyword cannot be used with ``APPEND`` (see policy :policy:`CMP0175`).
+  If the appended commands need this option to be set, it must be set on the
+  first call to ``add_custom_command(OUTPUT...)`` for the output files.
+
+``CODEGEN``
+  .. versionadded:: 3.31
+
+  Adds the custom command to a global ``codegen`` target that can be
+  used to execute the custom command while avoiding the majority of the
+  build graph.
+
+  This option is supported only by :ref:`Ninja Generators` and
+  :ref:`Makefile Generators`, and is ignored by other generators.
+  Furthermore, this option is allowed only if policy :policy:`CMP0171`
+  is set to ``NEW``.
+
+  This keyword cannot be used with ``APPEND`` (see policy :policy:`CMP0175`).
+  It can only be set on the first call to ``add_custom_command(OUTPUT...)``
+  for the output files.
+
+``IMPLICIT_DEPENDS``
+  Request scanning of implicit dependencies of an input file.
+  The language given specifies the programming language whose
+  corresponding dependency scanner should be used.
+  Currently only ``C`` and ``CXX`` language scanners are supported.
+  The language has to be specified for every file in the
+  ``IMPLICIT_DEPENDS`` list.  Dependencies discovered from the
+  scanning are added to those of the custom command at build time.
+  Note that the ``IMPLICIT_DEPENDS`` option is currently supported
+  only for Makefile generators and will be ignored by other generators.
+
+  .. note::
+
+    This option cannot be specified at the same time as ``DEPFILE`` option.
+
+``JOB_POOL``
+  .. versionadded:: 3.15
+
+  Specify a :prop_gbl:`pool <JOB_POOLS>` for the :generator:`Ninja`
+  generator. Incompatible with ``USES_TERMINAL``, which implies
+  the ``console`` pool.
+  Using a pool that is not defined by :prop_gbl:`JOB_POOLS` causes
+  an error by ninja at build time.
+
+  This keyword cannot be used with ``APPEND`` (see policy :policy:`CMP0175`).
+  Job pools can only be specified in the first call to
+  ``add_custom_command(OUTPUT...)`` for the output files.
+
+``JOB_SERVER_AWARE``
+  .. versionadded:: 3.28
+
+  Specify that the command is GNU Make job server aware.
+
+  For the :generator:`Unix Makefiles`, :generator:`MSYS Makefiles`, and
+  :generator:`MinGW Makefiles` generators this will add the ``+`` prefix to the
+  recipe line. See the `GNU Make Documentation`_ for more information.
+
+  This option is silently ignored by other generators.
+
+  This keyword cannot be used with ``APPEND`` (see policy :policy:`CMP0175`).
+  Job server awareness can only be specified in the first call to
+  ``add_custom_command(OUTPUT...)`` for the output files.
+
+.. _`GNU Make Documentation`: https://www.gnu.org/software/make/manual/html_node/MAKE-Variable.html
+
+``MAIN_DEPENDENCY``
+  Specify the primary input source file to the command.  This is
+  treated just like any value given to the ``DEPENDS`` option
+  but also suggests to Visual Studio generators where to hang
+  the custom command. Each source file may have at most one command
+  specifying it as its main dependency. A compile command (i.e. for a
+  library or an executable) counts as an implicit main dependency which
+  gets silently overwritten by a custom command specification.
+
+  This option is currently ignored if ``APPEND`` is given, but a future
+  version may use it.
+
+``OUTPUT``
+  Specify the output files the command is expected to produce.
+  Each output file will be marked with the :prop_sf:`GENERATED`
+  source file property automatically.
+  If the output of the custom command is not actually created
+  as a file on disk it should be marked with the :prop_sf:`SYMBOLIC`
+  source file property.
+
+  If an output file name is a relative path, its absolute path is
+  determined by interpreting it relative to:
+
+  1. the build directory corresponding to the current source directory
+     (:variable:`CMAKE_CURRENT_BINARY_DIR`), or
+
+  2. the current source directory (:variable:`CMAKE_CURRENT_SOURCE_DIR`).
+
+  The path in the build directory is preferred unless the path in the
+  source tree is mentioned as an absolute source file path elsewhere
+  in the current directory.
+
+  The output file path may not contain ``<`` or ``>`` characters.
+
+  .. versionadded:: 3.20
+    Arguments to ``OUTPUT`` may use a restricted set of
+    :manual:`generator expressions <cmake-generator-expressions(7)>`.
+    :ref:`Target-dependent expressions <Target-Dependent Expressions>`
+    are not permitted.
+
+  .. versionchanged:: 3.28
+    In targets using :ref:`file sets`, custom command outputs are now
+    considered private unless they are listed in a non-private file set.
+    See policy :policy:`CMP0154`.
+
+  .. versionchanged:: 3.30
+    The output file path may now use ``#`` characters, except
+    when using the :generator:`Borland Makefiles` generator.
+
+``USES_TERMINAL``
+  .. versionadded:: 3.2
+
+  The command will be given direct access to the terminal if possible.
+  With the :generator:`Ninja` generator, this places the command in
+  the ``console`` :prop_gbl:`pool <JOB_POOLS>`.
+
+  This keyword cannot be used with ``APPEND`` (see policy :policy:`CMP0175`).
+  If the appended commands need access to the terminal, it must be set on
+  the first call to ``add_custom_command(OUTPUT...)`` for the output files.
+
+``VERBATIM``
+  All arguments to the commands will be escaped properly for the
+  build tool so that the invoked command receives each argument
+  unchanged.  Note that one level of escapes is still used by the
+  CMake language processor before add_custom_command even sees the
+  arguments.  Use of ``VERBATIM`` is recommended as it enables
+  correct behavior.  When ``VERBATIM`` is not given the behavior
+  is platform specific because there is no protection of
+  tool-specific special characters.
+
+  This keyword cannot be used with ``APPEND`` (see policy :policy:`CMP0175`).
+  If the appended commands need to be treated as ``VERBATIM``, it must be set
+  on the first call to ``add_custom_command(OUTPUT...)`` for the output files.
+
+``WORKING_DIRECTORY``
+  Execute the command with the given current working directory.
+  If it is a relative path, it will be interpreted relative to the
+  build tree directory corresponding to the current source directory.
+
+  This option is currently ignored if ``APPEND`` is given, but a future
+  version may use it.
+
+  .. versionadded:: 3.13
+    Arguments to ``WORKING_DIRECTORY`` may use
+    :manual:`generator expressions <cmake-generator-expressions(7)>`.
+
+``DEPFILE``
+  .. versionadded:: 3.7
+
+  Specify a depfile which holds dependencies for the custom command. It is
+  usually emitted by the custom command itself.  This keyword may only be used
+  if the generator supports it, as detailed below.
+
+  The expected format, compatible with what is generated by ``gcc`` with the
+  option ``-M``, is independent of the generator or platform.
+
+  The formal syntax, as specified using
+  `BNF <https://en.wikipedia.org/wiki/Backus%E2%80%93Naur_form>`_ notation with
+  the regular extensions, is the following:
+
+  .. raw:: latex
+
+    \begin{small}
+
+  .. productionlist:: depfile
+    depfile: `rule`*
+    rule: `targets` (':' (`separator` `dependencies`?)?)? `eol`
+    targets: `target` (`separator` `target`)* `separator`*
+    target: `pathname`
+    dependencies: `dependency` (`separator` `dependency`)* `separator`*
+    dependency: `pathname`
+    separator: (`space` | `line_continue`)+
+    line_continue: '\' `eol`
+    space: ' ' | '\t'
+    pathname: `character`+
+    character: `std_character` | `dollar` | `hash` | `whitespace`
+    std_character: <any character except '$', '#' or ' '>
+    dollar: '$$'
+    hash: '\#'
+    whitespace: '\ '
+    eol: '\r'? '\n'
+
+  .. raw:: latex
+
+    \end{small}
+
+  .. note::
+
+    As part of ``pathname``, any slash and backslash is interpreted as
+    a directory separator.
+
+  .. versionadded:: 3.7
+    The :generator:`Ninja` generator supports ``DEPFILE`` since the keyword
+    was first added.
+
+  .. versionadded:: 3.17
+    Added the :generator:`Ninja Multi-Config` generator, which included
+    support for the ``DEPFILE`` keyword.
+
+  .. versionadded:: 3.20
+    Added support for :ref:`Makefile Generators`.
+
+    .. note::
+
+      ``DEPFILE`` cannot be specified at the same time as the
+      ``IMPLICIT_DEPENDS`` option for :ref:`Makefile Generators`.
+
+  .. versionadded:: 3.21
+    Added support for :ref:`Visual Studio Generators` with VS 2012 and above,
+    and for the :generator:`Xcode` generator.  Support for
+    :manual:`generator expressions <cmake-generator-expressions(7)>` was also
+    added.
+
+  .. versionadded:: 3.29
+    The :ref:`Ninja Generators` will now incorporate the dependencies into its
+    "deps log" database if the file is not listed in ``OUTPUTS`` or
+    ``BYPRODUCTS``.
+
+  Using ``DEPFILE`` with generators other than those listed above is an error.
+
+  If the ``DEPFILE`` argument is relative, it should be relative to
+  :variable:`CMAKE_CURRENT_BINARY_DIR`, and any relative paths inside the
+  ``DEPFILE`` should also be relative to :variable:`CMAKE_CURRENT_BINARY_DIR`.
+  See policy :policy:`CMP0116`, which is always ``NEW`` for
+  :ref:`Makefile Generators`, :ref:`Visual Studio Generators`,
+  and the :generator:`Xcode` generator.
+
+  This keyword cannot be used with ``APPEND`` (see policy :policy:`CMP0175`).
+  Depfiles can only be set on the first call to
+  ``add_custom_command(OUTPUT...)`` for the output files.
+
+``DEPENDS_EXPLICIT_ONLY``
+
+  .. versionadded:: 3.27
+
+  Indicates that the command's ``DEPENDS`` argument represents all files
+  required by the command and implicit dependencies are not required.
+
+  Without this option, if any target uses the output of the custom command,
+  CMake will consider that target's dependencies as implicit dependencies for
+  the custom command in case this custom command requires files implicitly
+  created by those targets.
+
+  This option can be enabled on all custom commands by setting
+  :variable:`CMAKE_ADD_CUSTOM_COMMAND_DEPENDS_EXPLICIT_ONLY` to ``ON``.
+
+  This keyword cannot be used with ``APPEND`` (see policy :policy:`CMP0175`).
+  It can only be set on the first call to ``add_custom_command(OUTPUT...)``
+  for the output files.
+
+  Only the :ref:`Ninja Generators` actually use this information to remove
+  unnecessary implicit dependencies.
+
+  See also the :prop_tgt:`OPTIMIZE_DEPENDENCIES` target property, which may
+  provide another way for reducing the impact of target dependencies in some
+  scenarios.
+
+Examples: Generating Files
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Custom commands may be used to generate source files.
+For example, the code:
+
+.. code-block:: cmake
+
+  add_custom_command(
+    OUTPUT out.c
+    COMMAND someTool -i ${CMAKE_CURRENT_SOURCE_DIR}/in.txt
+                     -o out.c
+    DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/in.txt
+    VERBATIM)
+  add_library(myLib out.c)
+
+adds a custom command to run ``someTool`` to generate ``out.c`` and then
+compile the generated source as part of a library.  The generation rule
+will re-run whenever ``in.txt`` changes.
+
+.. versionadded:: 3.20
+  One may use generator expressions to specify per-configuration outputs.
+  For example, the code:
+
+  .. code-block:: cmake
+
+    add_custom_command(
+      OUTPUT "out-$<CONFIG>.c"
+      COMMAND someTool -i ${CMAKE_CURRENT_SOURCE_DIR}/in.txt
+                       -o "out-$<CONFIG>.c"
+                       -c "$<CONFIG>"
+      DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/in.txt
+      VERBATIM)
+    add_library(myLib "out-$<CONFIG>.c")
+
+  adds a custom command to run ``someTool`` to generate ``out-<config>.c``,
+  where ``<config>`` is the build configuration, and then compile the generated
+  source as part of a library.
+
+.. versionadded:: 3.31
+  Use the ``CODEGEN`` option to add a custom command's outputs to the builtin
+  ``codegen`` target.  This is useful to make generated code available for
+   static analysis without building the entire project.  For example:
+
+  .. code-block:: cmake
+
+    add_executable(someTool someTool.c)
+
+    add_custom_command(
+      OUTPUT out.c
+      COMMAND someTool -o out.c
+      CODEGEN)
+
+    add_library(myLib out.c)
+
+  A user may build the ``codegen`` target to generate ``out.c``.
+  ``someTool`` is built as dependency, but ``myLib`` is not built at all.
+
+Example: Generating Files for Multiple Targets
+""""""""""""""""""""""""""""""""""""""""""""""
+
+If multiple independent targets need the same custom command output,
+it must be attached to a single custom target on which they all depend.
+Consider the following example:
+
+.. code-block:: cmake
+
+  add_custom_command(
+    OUTPUT table.csv
+    COMMAND makeTable -i ${CMAKE_CURRENT_SOURCE_DIR}/input.dat
+                      -o table.csv
+    DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/input.dat
+    VERBATIM)
+  add_custom_target(generate_table_csv DEPENDS table.csv)
+
+  add_custom_command(
+    OUTPUT foo.cxx
+    COMMAND genFromTable -i table.csv -case foo -o foo.cxx
+    DEPENDS table.csv           # file-level dependency
+            generate_table_csv  # target-level dependency
+    VERBATIM)
+  add_library(foo foo.cxx)
+
+  add_custom_command(
+    OUTPUT bar.cxx
+    COMMAND genFromTable -i table.csv -case bar -o bar.cxx
+    DEPENDS table.csv           # file-level dependency
+            generate_table_csv  # target-level dependency
+    VERBATIM)
+  add_library(bar bar.cxx)
+
+Output ``foo.cxx`` is needed only by target ``foo`` and output ``bar.cxx``
+is needed only by target ``bar``, but *both* targets need ``table.csv``,
+transitively.  Since ``foo`` and ``bar`` are independent targets that may
+build concurrently, we prevent them from racing to generate ``table.csv``
+by placing its custom command in a separate target, ``generate_table_csv``.
+The custom commands generating ``foo.cxx`` and ``bar.cxx`` each specify a
+target-level dependency on ``generate_table_csv``, so the targets using them,
+``foo`` and ``bar``, will not build until after target ``generate_table_csv``
+is built.
+
+.. _`add_custom_command(TARGET)`:
+
+Build Events
+^^^^^^^^^^^^
+
+The second signature adds a custom command to a target such as a
+library or executable.  This is useful for performing an operation
+before or after building the target.  The command becomes part of the
+target and will only execute when the target itself is built.  If the
+target is already built, the command will not execute.
+
+.. code-block:: cmake
+
+  add_custom_command(TARGET <target>
+                     PRE_BUILD | PRE_LINK | POST_BUILD
+                     COMMAND command1 [ARGS] [args1...]
+                     [COMMAND command2 [ARGS] [args2...] ...]
+                     [BYPRODUCTS [files...]]
+                     [WORKING_DIRECTORY dir]
+                     [COMMENT comment]
+                     [VERBATIM]
+                     [COMMAND_EXPAND_LISTS]
+                     [USES_TERMINAL])
+
+This defines a new command that will be associated with building the
+specified ``<target>``.  The ``<target>`` must be defined in the current
+directory; targets defined in other directories may not be specified.
+
+When the command will happen is determined by which
+of the following is specified:
+
+``PRE_BUILD``
+  This option has unique behavior for the :ref:`Visual Studio Generators`.
+  When using one of the Visual Studio generators, the command will run before
+  any other rules are executed within the target.  With all other generators,
+  this option behaves the same as ``PRE_LINK`` instead.  Because of this,
+  it is recommended to avoid using ``PRE_BUILD`` except when it is known that
+  a Visual Studio generator is being used.
+``PRE_LINK``
+  Run after sources have been compiled but before linking the binary
+  or running the librarian or archiver tool of a static library.
+  This is not defined for targets created by the
+  :command:`add_custom_target` command.
+``POST_BUILD``
+  Run after all other rules within the target have been executed.
+
+Projects should always specify one of the above three keywords when using
+the ``TARGET`` form.  See policy :policy:`CMP0175`.
+
+All other keywords shown in the signature above have the same meaning as they
+do for the :command:`add_custom_command(OUTPUT)` form of the command.
+At least one ``COMMAND`` must be given, see policy :policy:`CMP0175`.
+
+.. note::
+  Because generator expressions can be used in custom commands,
+  it is possible to define ``COMMAND`` lines or whole custom commands
+  which evaluate to empty strings for certain configurations.
+  For :ref:`Visual Studio Generators` these command
+  lines or custom commands will be omitted for the specific
+  configuration and no "empty-string-command" will be added.
+
+  This allows adding individual build events for every configuration.
+
+.. versionadded:: 3.21
+  Support for target-dependent generator expressions.
+
+.. versionadded:: 3.29
+  The ``<target>`` may be an :ref:`ALIAS target <Alias Targets>`.
+
+Examples: Build Events
+^^^^^^^^^^^^^^^^^^^^^^
+
+A ``POST_BUILD`` event may be used to post-process a binary after linking.
+For example, the code:
+
+.. code-block:: cmake
+
+  add_executable(myExe myExe.c)
+  add_custom_command(
+    TARGET myExe POST_BUILD
+    COMMAND someHasher -i "$<TARGET_FILE:myExe>"
+                       -o "$<TARGET_FILE:myExe>.hash"
+    VERBATIM)
+
+will run ``someHasher`` to produce a ``.hash`` file next to the executable
+after linking.
+
+.. versionadded:: 3.20
+  One may use generator expressions to specify per-configuration byproducts.
+  For example, the code:
+
+  .. code-block:: cmake
+
+    add_library(myPlugin MODULE myPlugin.c)
+    add_custom_command(
+      TARGET myPlugin POST_BUILD
+      COMMAND someHasher -i "$<TARGET_FILE:myPlugin>"
+                         --as-code "myPlugin-hash-$<CONFIG>.c"
+      BYPRODUCTS "myPlugin-hash-$<CONFIG>.c"
+      VERBATIM)
+    add_executable(myExe myExe.c "myPlugin-hash-$<CONFIG>.c")
+
+  will run ``someHasher`` after linking ``myPlugin``, e.g. to produce a ``.c``
+  file containing code to check the hash of ``myPlugin`` that the ``myExe``
+  executable can use to verify it before loading.
+
+Ninja Multi-Config
+^^^^^^^^^^^^^^^^^^
+
+.. versionadded:: 3.20
+
+  ``add_custom_command`` supports the :generator:`Ninja Multi-Config`
+  generator's cross-config capabilities. See the generator documentation
+  for more information.
+
+See Also
+^^^^^^^^
+
+* :command:`add_custom_target`

cmake/share/cmake-3.31/Help/command/add_custom_target.rst

@@ -0,0 +1,211 @@
+add_custom_target
+-----------------
+
+Add a target with no output so it will always be built.
+
+.. code-block:: cmake
+
+  add_custom_target(Name [ALL] [command1 [args1...]]
+                    [COMMAND command2 [args2...] ...]
+                    [DEPENDS depend depend depend ... ]
+                    [BYPRODUCTS [files...]]
+                    [WORKING_DIRECTORY dir]
+                    [COMMENT comment]
+                    [JOB_POOL job_pool]
+                    [JOB_SERVER_AWARE <bool>]
+                    [VERBATIM] [USES_TERMINAL]
+                    [COMMAND_EXPAND_LISTS]
+                    [SOURCES src1 [src2...]])
+
+Adds a target with the given name that executes the given commands.
+The target has no output file and is *always considered out of date*
+even if the commands try to create a file with the name of the target.
+Use the :command:`add_custom_command` command to generate a file with
+dependencies.  By default nothing depends on the custom target.  Use
+the :command:`add_dependencies` command to add dependencies to or
+from other targets.
+
+The options are:
+
+``ALL``
+  Indicate that this target should be added to the default build
+  target so that it will be run every time (the command cannot be
+  called ``ALL``).
+
+``BYPRODUCTS``
+  .. versionadded:: 3.2
+
+  Specify the files the command is expected to produce but whose
+  modification time may or may not be updated on subsequent builds.
+  If a byproduct name is a relative path it will be interpreted
+  relative to the build tree directory corresponding to the
+  current source directory.
+  Each byproduct file will be marked with the :prop_sf:`GENERATED`
+  source file property automatically.
+
+  *See policy* :policy:`CMP0058` *for the motivation behind this feature.*
+
+  Explicit specification of byproducts is supported by the
+  :generator:`Ninja` generator to tell the ``ninja`` build tool
+  how to regenerate byproducts when they are missing.  It is
+  also useful when other build rules (e.g. custom commands)
+  depend on the byproducts.  Ninja requires a build rule for any
+  generated file on which another rule depends even if there are
+  order-only dependencies to ensure the byproducts will be
+  available before their dependents build.
+
+  The :ref:`Makefile Generators` will remove ``BYPRODUCTS`` and other
+  :prop_sf:`GENERATED` files during ``make clean``.
+
+  .. versionadded:: 3.20
+    Arguments to ``BYPRODUCTS`` may use a restricted set of
+    :manual:`generator expressions <cmake-generator-expressions(7)>`.
+    :ref:`Target-dependent expressions <Target-Dependent Expressions>`
+    are not permitted.
+
+  .. versionchanged:: 3.28
+    In custom targets using :ref:`file sets`, byproducts are now
+    considered private unless they are listed in a non-private file set.
+    See policy :policy:`CMP0154`.
+
+``COMMAND``
+  Specify the command-line(s) to execute at build time.
+  If more than one ``COMMAND`` is specified they will be executed in order,
+  but *not* necessarily composed into a stateful shell or batch script.
+  (To run a full script, use the :command:`configure_file` command or the
+  :command:`file(GENERATE)` command to create it, and then specify
+  a ``COMMAND`` to launch it.)
+
+  If ``COMMAND`` specifies an executable target name (created by the
+  :command:`add_executable` command), it will automatically be replaced
+  by the location of the executable created at build time if either of
+  the following is true:
+
+  * The target is not being cross-compiled (i.e. the
+    :variable:`CMAKE_CROSSCOMPILING` variable is not set to true).
+  * .. versionadded:: 3.6
+      The target is being cross-compiled and an emulator is provided (i.e.
+      its :prop_tgt:`CROSSCOMPILING_EMULATOR` target property is set).
+      In this case, the contents of :prop_tgt:`CROSSCOMPILING_EMULATOR` will be
+      prepended to the command before the location of the target executable.
+
+  If neither of the above conditions are met, it is assumed that the
+  command name is a program to be found on the ``PATH`` at build time.
+
+  Arguments to ``COMMAND`` may use
+  :manual:`generator expressions <cmake-generator-expressions(7)>`.
+  Use the :genex:`TARGET_FILE` generator expression to refer to the location
+  of a target later in the command line (i.e. as a command argument rather
+  than as the command to execute).
+
+  Whenever one of the following target based generator expressions are used as
+  a command to execute or is mentioned in a command argument, a target-level
+  dependency will be added automatically so that the mentioned target will be
+  built before this custom target (see policy :policy:`CMP0112`).
+
+    * ``TARGET_FILE``
+    * ``TARGET_LINKER_FILE``
+    * ``TARGET_SONAME_FILE``
+    * ``TARGET_PDB_FILE``
+
+  The command and arguments are optional and if not specified an empty
+  target will be created.
+
+``COMMENT``
+  Display the given message before the commands are executed at
+  build time.
+
+  .. versionadded:: 3.26
+    Arguments to ``COMMENT`` may use
+    :manual:`generator expressions <cmake-generator-expressions(7)>`.
+
+``DEPENDS``
+  Reference files and outputs of custom commands created with
+  :command:`add_custom_command` command calls in the same directory
+  (``CMakeLists.txt`` file).  They will be brought up to date when
+  the target is built.
+
+  .. versionchanged:: 3.16
+    A target-level dependency is added if any dependency is a byproduct
+    of a target or any of its build events in the same directory to ensure
+    the byproducts will be available before this target is built.
+
+  Use the :command:`add_dependencies` command to add dependencies
+  on other targets.
+
+``COMMAND_EXPAND_LISTS``
+  .. versionadded:: 3.8
+
+  Lists in ``COMMAND`` arguments will be expanded, including those
+  created with
+  :manual:`generator expressions <cmake-generator-expressions(7)>`,
+  allowing ``COMMAND`` arguments such as
+  ``${CC} "-I$<JOIN:$<TARGET_PROPERTY:foo,INCLUDE_DIRECTORIES>,;-I>" foo.cc``
+  to be properly expanded.
+
+``JOB_POOL``
+  .. versionadded:: 3.15
+
+  Specify a :prop_gbl:`pool <JOB_POOLS>` for the :generator:`Ninja`
+  generator. Incompatible with ``USES_TERMINAL``, which implies
+  the ``console`` pool.
+  Using a pool that is not defined by :prop_gbl:`JOB_POOLS` causes
+  an error by ninja at build time.
+
+``JOB_SERVER_AWARE``
+  .. versionadded:: 3.28
+
+  Specify that the command is GNU Make job server aware.
+
+  For the :generator:`Unix Makefiles`, :generator:`MSYS Makefiles`, and
+  :generator:`MinGW Makefiles` generators this will add the ``+`` prefix to the
+  recipe line. See the `GNU Make Documentation`_ for more information.
+
+  This option is silently ignored by other generators.
+
+.. _`GNU Make Documentation`: https://www.gnu.org/software/make/manual/html_node/MAKE-Variable.html
+
+``SOURCES``
+  Specify additional source files to be included in the custom target.
+  Specified source files will be added to IDE project files for
+  convenience in editing even if they have no build rules.
+
+``VERBATIM``
+  All arguments to the commands will be escaped properly for the
+  build tool so that the invoked command receives each argument
+  unchanged.  Note that one level of escapes is still used by the
+  CMake language processor before ``add_custom_target`` even sees
+  the arguments.  Use of ``VERBATIM`` is recommended as it enables
+  correct behavior.  When ``VERBATIM`` is not given the behavior
+  is platform specific because there is no protection of
+  tool-specific special characters.
+
+``USES_TERMINAL``
+  .. versionadded:: 3.2
+
+  The command will be given direct access to the terminal if possible.
+  With the :generator:`Ninja` generator, this places the command in
+  the ``console`` :prop_gbl:`pool <JOB_POOLS>`.
+
+``WORKING_DIRECTORY``
+  Execute the command with the given current working directory.
+  If it is a relative path it will be interpreted relative to the
+  build tree directory corresponding to the current source directory.
+
+  .. versionadded:: 3.13
+    Arguments to ``WORKING_DIRECTORY`` may use
+    :manual:`generator expressions <cmake-generator-expressions(7)>`.
+
+Ninja Multi-Config
+^^^^^^^^^^^^^^^^^^
+
+.. versionadded:: 3.20
+
+  ``add_custom_target`` supports the :generator:`Ninja Multi-Config`
+  generator's cross-config capabilities. See the generator documentation
+  for more information.
+
+See Also
+^^^^^^^^
+
+* :command:`add_custom_command`

cmake/share/cmake-3.31/Help/command/add_definitions.rst

@@ -0,0 +1,38 @@
+add_definitions
+---------------
+
+Add ``-D`` define flags to the compilation of source files.
+
+.. code-block:: cmake
+
+  add_definitions(-DFOO -DBAR ...)
+
+Adds definitions to the compiler command line for targets in the current
+directory, whether added before or after this command is invoked, and for
+the ones in sub-directories added after. This command can be used to add any
+flags, but it is intended to add preprocessor definitions.
+
+.. note::
+
+  This command has been superseded by alternatives:
+
+  * Use :command:`add_compile_definitions` to add preprocessor definitions.
+  * Use :command:`include_directories` to add include directories.
+  * Use :command:`add_compile_options` to add other options.
+
+Flags beginning in ``-D`` or ``/D`` that look like preprocessor definitions are
+automatically added to the :prop_dir:`COMPILE_DEFINITIONS` directory
+property for the current directory.  Definitions with non-trivial values
+may be left in the set of flags instead of being converted for reasons of
+backwards compatibility.  See documentation of the
+:prop_dir:`directory <COMPILE_DEFINITIONS>`,
+:prop_tgt:`target <COMPILE_DEFINITIONS>`,
+:prop_sf:`source file <COMPILE_DEFINITIONS>` ``COMPILE_DEFINITIONS``
+properties for details on adding preprocessor definitions to specific
+scopes and configurations.
+
+See Also
+^^^^^^^^
+
+* The :manual:`cmake-buildsystem(7)` manual for more on defining
+  buildsystem properties.

cmake/share/cmake-3.31/Templates/CPack.GenericDescription.txt

@@ -0,0 +1,5 @@
+DESCRIPTION
+===========
+
+This is an installer created using CPack (https://cmake.org). No additional installation instructions provided.
+

cmake/share/cmake-3.31/Templates/CPack.GenericLicense.txt

@@ -0,0 +1,5 @@
+LICENSE
+=======
+
+This is an installer created using CPack (https://cmake.org). No license provided.
+

cmake/share/cmake-3.31/Templates/CPack.GenericWelcome.txt

@@ -0,0 +1 @@
+Welcome to installation. This program will guide you through the installation of this software.

cmake/share/cmake-3.31/Templates/CPackConfig.cmake.in

@@ -0,0 +1,20 @@
+# This file will be configured to contain variables for CPack. These variables
+# should be set in the CMake list file of the project before CPack module is
+# included. The list of available CPACK_xxx variables and their associated
+# documentation may be obtained using
+#  cpack --help-variable-list
+#
+# Some variables are common to all generators (e.g. CPACK_PACKAGE_NAME)
+# and some are specific to a generator
+# (e.g. CPACK_NSIS_EXTRA_INSTALL_COMMANDS). The generator specific variables
+# usually begin with CPACK_<GENNAME>_xxxx.
+
+@_CPACK_OTHER_VARIABLES_@
+
+if(NOT CPACK_PROPERTIES_FILE)
+  set(CPACK_PROPERTIES_FILE "@CMAKE_BINARY_DIR@/CPackProperties.cmake")
+endif()
+
+if(EXISTS ${CPACK_PROPERTIES_FILE})
+  include(${CPACK_PROPERTIES_FILE})
+endif()

cmake/share/cmake-3.31/Templates/TestDriver.cxx.in

@@ -0,0 +1,199 @@
+#include <ctype.h>  /* NOLINT */
+#include <stdio.h>  /* NOLINT */
+#include <stdlib.h> /* NOLINT */
+#include <string.h> /* NOLINT */
+#include <time.h>   /* NOLINT */
+
+#if defined(_MSC_VER)
+#pragma warning(disable : 4996) /* deprecation */
+#endif
+
+@CMAKE_TESTDRIVER_EXTRA_INCLUDES@
+
+/* Forward declare test functions. */
+@CMAKE_FORWARD_DECLARE_TESTS@
+
+#ifdef __cplusplus
+#  define CM_CAST(TYPE, EXPR) static_cast<TYPE>(EXPR)
+#  if __cplusplus >= 201103L
+#    define CM_NULL nullptr
+#  else
+#    define CM_NULL NULL
+#  endif
+#  define CM_NAMESPACE_BEGIN namespace {
+#  define CM_NAMESPACE_END }
+#  define CM_LOCAL
+#else
+#  define CM_CAST(TYPE, EXPR) (TYPE)(EXPR)
+#  define CM_NULL NULL
+#  define CM_NAMESPACE_BEGIN
+#  define CM_NAMESPACE_END
+#  define CM_LOCAL static
+#endif
+
+CM_NAMESPACE_BEGIN
+
+/* Create map.  */
+
+typedef int (*MainFuncPointer)(int, char* []); /* NOLINT */
+typedef struct /* NOLINT */
+{
+  const char* name;
+  MainFuncPointer func;
+} functionMapEntry;
+
+CM_LOCAL const functionMapEntry cmakeGeneratedFunctionMapEntries[] = {
+  @CMAKE_FUNCTION_TABLE_ENTRIES@
+  { CM_NULL, CM_NULL } /* NOLINT */
+};
+
+CM_LOCAL const int NumTests = CM_CAST(int,
+  sizeof(cmakeGeneratedFunctionMapEntries) / sizeof(functionMapEntry)) - 1;
+
+/* Allocate and create a lowercased copy of string
+   (note that it has to be free'd manually) */
+CM_LOCAL char* lowercase(const char* string)
+{
+  char *new_string;
+  char *p;
+  size_t stringSize;
+
+  stringSize = CM_CAST(size_t, strlen(string) + 1);
+  new_string = CM_CAST(char*, malloc(sizeof(char) * stringSize));
+
+  if (new_string == CM_NULL) { /* NOLINT */
+    return CM_NULL;            /* NOLINT */
+  }
+  strcpy(new_string, string);  /* NOLINT */
+  for (p = new_string; *p != 0; ++p) {
+    *p = CM_CAST(char, tolower(*p));
+  }
+  return new_string;
+}
+
+CM_LOCAL int isTestSkipped(const char *name, int n_skipped_tests, char *skipped_tests[]) {
+  int i;
+  for (i = 0; i < n_skipped_tests; i++) {
+    if (strcmp(name, skipped_tests[i]) == 0) {
+      return 1;
+    }
+  }
+
+  return 0;
+}
+
+CM_NAMESPACE_END
+
+int main(int ac, char* av[])
+{
+  int i;
+  int testNum = 0;
+  int partial_match;
+  int run_all;
+  char *arg;
+  int testToRun = -1;
+
+  @CMAKE_TESTDRIVER_ARGVC_FUNCTION@
+
+  /* If no test name was given */
+  /* process command line with user function.  */
+  if (ac < 2) {
+    /* Ask for a test.  */
+    printf("Available tests:\n");
+    for (i = 0; i < NumTests; ++i) {
+      printf("%3d. %s\n", i, cmakeGeneratedFunctionMapEntries[i].name);
+    }
+    printf("To run a test, enter the test number: ");
+    fflush(stdout);
+    if (scanf("%d", &testNum) != 1) {
+      printf("Couldn't parse that input as a number\n");
+      return -1;
+    }
+    if (testNum >= NumTests) {
+      printf("%3d is an invalid test number.\n", testNum);
+      return -1;
+    }
+    testToRun = testNum;
+    ac--;
+    av++;
+  }
+  partial_match = 0;
+  run_all = 0;
+  arg = CM_NULL; /* NOLINT */
+  /* If partial match or running all tests are requested.  */
+  if (testToRun == -1 && ac > 1) {
+    partial_match = (strcmp(av[1], "-R") == 0) ? 1 : 0;
+    run_all = (strcmp(av[1], "-A") == 0) ? 1 : 0;
+  }
+  if (partial_match != 0 && ac < 3) {
+    printf("-R needs an additional parameter.\n");
+    return -1;
+  }
+  if (run_all == 1) {
+    clock_t t;
+    int status = 0;
+    const char* status_message = CM_NULL;
+    printf("TAP version 13\n");
+    printf("1..%d\n", NumTests);
+    for (i = 0; i < NumTests; ++i) {
+      const char *name = cmakeGeneratedFunctionMapEntries[i].name;
+      if (ac > 2) {
+        if (isTestSkipped(name, ac - 2, av + 2) == 1) {
+          printf("ok %d %s # SKIP\n", i + 1, name);
+          continue;
+        }
+      }
+      t = clock();
+      status = (*cmakeGeneratedFunctionMapEntries[i].func)(ac, av);
+      t = clock() - t;
+      status_message = (status == -1) ? "not ok" : "ok";
+      {
+        double time_taken = CM_CAST(double, t) / CLOCKS_PER_SEC;
+        printf("%s %d %s # %f\n", status_message, i + 1, name, time_taken);
+      }
+    }
+    printf("All tests finished.\n");
+
+    return 0;
+  }
+
+  if (testToRun == -1) {
+    arg = lowercase(av[1 + partial_match]);
+  }
+  for (i = 0; i < NumTests && testToRun == -1; ++i) {
+    char *test_name = lowercase(cmakeGeneratedFunctionMapEntries[i].name);
+    if (partial_match != 0 && strstr(test_name, arg) != CM_NULL) { /* NOLINT */
+      testToRun = i;
+      ac -= 2;
+      av += 2;
+    } else if (partial_match == 0 && strcmp(test_name, arg) == 0) {
+      testToRun = i;
+      ac--;
+      av++;
+    }
+    free(test_name);
+  }
+  free(arg);
+  if (testToRun != -1) {
+    int result;
+@CMAKE_TESTDRIVER_BEFORE_TESTMAIN@
+    if (testToRun < 0 || testToRun >= NumTests) {
+      printf("testToRun was modified by TestDriver code to an invalid value: "
+             "%3d.\n",
+             testNum);
+      return -1;
+    }
+    result = (*cmakeGeneratedFunctionMapEntries[testToRun].func)(ac, av);
+@CMAKE_TESTDRIVER_AFTER_TESTMAIN@
+    return result;
+  }
+
+  /* Nothing was run, display the test names.  */
+  printf("Available tests:\n");
+  for (i = 0; i < NumTests; ++i) {
+    printf("%3d. %s\n", i, cmakeGeneratedFunctionMapEntries[i].name);
+  }
+  printf("Failed: %s is an invalid test name.\n", av[1]);
+
+  return -1;
+}

cmake/share/vim/vimfiles/indent/cmake.vim

@@ -0,0 +1,99 @@
+" Vim indent file
+" Language:     CMake (ft=cmake)
+" Author:       Andy Cedilnik <andy.cedilnik@kitware.com>
+" Maintainer:   Dimitri Merejkowsky <d.merej@gmail.com>
+" Former Maintainer: Karthik Krishnan <karthik.krishnan@kitware.com>
+" Last Change:  2022 Mar 22
+"
+" License:      The CMake license applies to this file. See
+"               https://cmake.org/licensing
+"               This implies that distribution with Vim is allowed
+
+if exists("b:did_indent")
+  finish
+endif
+let b:did_indent = 1
+
+setlocal indentexpr=CMakeGetIndent(v:lnum)
+setlocal indentkeys+==ENDIF(,ENDFOREACH(,ENDMACRO(,ELSE(,ELSEIF(,ENDWHILE(
+
+let b:undo_indent = "setl inde< indk<"
+
+" Only define the function once.
+if exists("*CMakeGetIndent")
+  finish
+endif
+let s:keepcpo= &cpo
+set cpo&vim
+
+fun! CMakeGetIndent(lnum)
+  let this_line = getline(a:lnum)
+
+  " Find a non-blank line above the current line.
+  let lnum = a:lnum
+  let lnum = prevnonblank(lnum - 1)
+  let previous_line = getline(lnum)
+
+  " Hit the start of the file, use zero indent.
+  if lnum == 0
+    return 0
+  endif
+
+  let ind = indent(lnum)
+
+  let or = '\|'
+  " Regular expressions used by line indentation function.
+  let cmake_regex_comment = '#.*'
+  let cmake_regex_identifier = '[A-Za-z][A-Za-z0-9_]*'
+  let cmake_regex_quoted = '"\([^"\\]\|\\.\)*"'
+  let cmake_regex_arguments = '\(' . cmake_regex_quoted .
+                    \       or . '\$(' . cmake_regex_identifier . ')' .
+                    \       or . '[^()\\#"]' . or . '\\.' . '\)*'
+
+  let cmake_indent_comment_line = '^\s*' . cmake_regex_comment
+  let cmake_indent_blank_regex = '^\s*$'
+  let cmake_indent_open_regex = '^\s*' . cmake_regex_identifier .
+                    \           '\s*(' . cmake_regex_arguments .
+                    \           '\(' . cmake_regex_comment . '\)\?$'
+  let cmake_indent_close_regex = '^' . cmake_regex_arguments .
+                    \            ')\s*' .
+                    \            '\(' . cmake_regex_comment . '\)\?$'
+
+  let cmake_closing_parens_line = '^\s*\()\+\)\s*$'
+
+  let cmake_indent_begin_regex = '^\s*\(BLOCK\|IF\|MACRO\|FOREACH\|ELSE\|ELSEIF\|WHILE\|FUNCTION\)\s*('
+  let cmake_indent_end_regex = '^\s*\(ENDBLOCK\|ENDIF\|ENDFOREACH\|ENDMACRO\|ELSE\|ELSEIF\|ENDWHILE\|ENDFUNCTION\)\s*('
+
+  if this_line =~? cmake_closing_parens_line
+    if previous_line !~? cmake_indent_open_regex
+      let ind = ind - shiftwidth()
+    endif
+  else
+    " Add
+    if previous_line =~? cmake_indent_comment_line " Handle comments
+      let ind = ind
+    else
+      if previous_line =~? cmake_indent_begin_regex
+        let ind = ind + shiftwidth()
+      endif
+      if previous_line =~? cmake_indent_open_regex
+        let ind = ind + shiftwidth()
+      endif
+    endif
+
+    " Subtract
+    if this_line =~? cmake_indent_end_regex
+      let ind = ind - shiftwidth()
+    endif
+    if previous_line !~? cmake_closing_parens_line
+      if previous_line =~? cmake_indent_close_regex
+        let ind = ind - shiftwidth()
+      endif
+    endif
+  endif
+
+  return ind
+endfun
+
+let &cpo = s:keepcpo
+unlet s:keepcpo

ffmpeg/include/libavcodec/ac3_parser.h

@@ -0,0 +1,36 @@
+/*
+ * AC-3 parser prototypes
+ * Copyright (c) 2003 Fabrice Bellard
+ * Copyright (c) 2003 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AC3_PARSER_H
+#define AVCODEC_AC3_PARSER_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+/**
+ * Extract the bitstream ID and the frame size from AC-3 data.
+ */
+int av_ac3_parse_header(const uint8_t *buf, size_t size,
+                        uint8_t *bitstream_id, uint16_t *frame_size);
+
+
+#endif /* AVCODEC_AC3_PARSER_H */

ffmpeg/include/libavcodec/adts_parser.h

@@ -0,0 +1,37 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_ADTS_PARSER_H
+#define AVCODEC_ADTS_PARSER_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define AV_AAC_ADTS_HEADER_SIZE 7
+
+/**
+ * Extract the number of samples and frames from AAC data.
+ * @param[in]  buf     pointer to AAC data buffer
+ * @param[out] samples Pointer to where number of samples is written
+ * @param[out] frames  Pointer to where number of frames is written
+ * @return Returns 0 on success, error code on failure.
+ */
+int av_adts_header_parse(const uint8_t *buf, uint32_t *samples,
+                         uint8_t *frames);
+
+#endif /* AVCODEC_ADTS_PARSER_H */

ffmpeg/include/libavcodec/avdct.h

@@ -0,0 +1,88 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AVDCT_H
+#define AVCODEC_AVDCT_H
+
+#include "libavutil/opt.h"
+
+/**
+ * AVDCT context.
+ * @note function pointers can be NULL if the specific features have been
+ *       disabled at build time.
+ */
+typedef struct AVDCT {
+    const AVClass *av_class;
+
+    void (*idct)(int16_t *block /* align 16 */);
+
+    /**
+     * IDCT input permutation.
+     * Several optimized IDCTs need a permutated input (relative to the
+     * normal order of the reference IDCT).
+     * This permutation must be performed before the idct_put/add.
+     * Note, normally this can be merged with the zigzag/alternate scan<br>
+     * An example to avoid confusion:
+     * - (->decode coeffs -> zigzag reorder -> dequant -> reference IDCT -> ...)
+     * - (x -> reference DCT -> reference IDCT -> x)
+     * - (x -> reference DCT -> simple_mmx_perm = idct_permutation
+     *    -> simple_idct_mmx -> x)
+     * - (-> decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant
+     *    -> simple_idct_mmx -> ...)
+     */
+    uint8_t idct_permutation[64];
+
+    void (*fdct)(int16_t *block /* align 16 */);
+
+
+    /**
+     * DCT algorithm.
+     * must use AVOptions to set this field.
+     */
+    int dct_algo;
+
+    /**
+     * IDCT algorithm.
+     * must use AVOptions to set this field.
+     */
+    int idct_algo;
+
+    void (*get_pixels)(int16_t *block /* align 16 */,
+                       const uint8_t *pixels /* align 8 */,
+                       ptrdiff_t line_size);
+
+    int bits_per_sample;
+
+    void (*get_pixels_unaligned)(int16_t *block /* align 16 */,
+                       const uint8_t *pixels,
+                       ptrdiff_t line_size);
+} AVDCT;
+
+/**
+ * Allocates a AVDCT context.
+ * This needs to be initialized with avcodec_dct_init() after optionally
+ * configuring it with AVOptions.
+ *
+ * To free it use av_free()
+ */
+AVDCT *avcodec_dct_alloc(void);
+int avcodec_dct_init(AVDCT *);
+
+const AVClass *avcodec_dct_get_class(void);
+
+#endif /* AVCODEC_AVDCT_H */

ffmpeg/include/libavcodec/avfft.h

@@ -0,0 +1,149 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AVFFT_H
+#define AVCODEC_AVFFT_H
+
+#include "libavutil/attributes.h"
+#include "version_major.h"
+#if FF_API_AVFFT
+
+/**
+ * @file
+ * @ingroup lavc_fft
+ * FFT functions
+ */
+
+/**
+ * @defgroup lavc_fft FFT functions
+ * @ingroup lavc_misc
+ *
+ * @{
+ */
+
+typedef float FFTSample;
+
+typedef struct FFTComplex {
+    FFTSample re, im;
+} FFTComplex;
+
+typedef struct FFTContext FFTContext;
+
+/**
+ * Set up a complex FFT.
+ * @param nbits           log2 of the length of the input array
+ * @param inverse         if 0 perform the forward transform, if 1 perform the inverse
+ * @deprecated use av_tx_init from libavutil/tx.h with a type of AV_TX_FLOAT_FFT
+ */
+attribute_deprecated
+FFTContext *av_fft_init(int nbits, int inverse);
+
+/**
+ * Do the permutation needed BEFORE calling ff_fft_calc().
+ * @deprecated without replacement
+ */
+attribute_deprecated
+void av_fft_permute(FFTContext *s, FFTComplex *z);
+
+/**
+ * Do a complex FFT with the parameters defined in av_fft_init(). The
+ * input data must be permuted before. No 1.0/sqrt(n) normalization is done.
+ * @deprecated use the av_tx_fn value returned by av_tx_init, which also does permutation
+ */
+attribute_deprecated
+void av_fft_calc(FFTContext *s, FFTComplex *z);
+
+attribute_deprecated
+void av_fft_end(FFTContext *s);
+
+/**
+ * @deprecated use av_tx_init from libavutil/tx.h with a type of AV_TX_FLOAT_MDCT,
+ * with a flag of AV_TX_FULL_IMDCT for a replacement to av_imdct_calc.
+ */
+attribute_deprecated
+FFTContext *av_mdct_init(int nbits, int inverse, double scale);
+attribute_deprecated
+void av_imdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input);
+attribute_deprecated
+void av_imdct_half(FFTContext *s, FFTSample *output, const FFTSample *input);
+attribute_deprecated
+void av_mdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input);
+attribute_deprecated
+void av_mdct_end(FFTContext *s);
+
+/* Real Discrete Fourier Transform */
+
+enum RDFTransformType {
+    DFT_R2C,
+    IDFT_C2R,
+    IDFT_R2C,
+    DFT_C2R,
+};
+
+typedef struct RDFTContext RDFTContext;
+
+/**
+ * Set up a real FFT.
+ * @param nbits           log2 of the length of the input array
+ * @param trans           the type of transform
+ *
+ * @deprecated use av_tx_init from libavutil/tx.h with a type of AV_TX_FLOAT_RDFT
+ */
+attribute_deprecated
+RDFTContext *av_rdft_init(int nbits, enum RDFTransformType trans);
+attribute_deprecated
+void av_rdft_calc(RDFTContext *s, FFTSample *data);
+attribute_deprecated
+void av_rdft_end(RDFTContext *s);
+
+/* Discrete Cosine Transform */
+
+typedef struct DCTContext DCTContext;
+
+enum DCTTransformType {
+    DCT_II = 0,
+    DCT_III,
+    DCT_I,
+    DST_I,
+};
+
+/**
+ * Set up DCT.
+ *
+ * @param nbits           size of the input array:
+ *                        (1 << nbits)     for DCT-II, DCT-III and DST-I
+ *                        (1 << nbits) + 1 for DCT-I
+ * @param type            the type of transform
+ *
+ * @note the first element of the input of DST-I is ignored
+ *
+ * @deprecated use av_tx_init from libavutil/tx.h with an appropriate type of AV_TX_FLOAT_DCT
+ */
+attribute_deprecated
+DCTContext *av_dct_init(int nbits, enum DCTTransformType type);
+attribute_deprecated
+void av_dct_calc(DCTContext *s, FFTSample *data);
+attribute_deprecated
+void av_dct_end (DCTContext *s);
+
+/**
+ * @}
+ */
+
+#endif /* FF_API_AVFFT */
+#endif /* AVCODEC_AVFFT_H */

ffmpeg/include/libavcodec/bsf.h

@@ -0,0 +1,332 @@
+/*
+ * Bitstream filters public API
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_BSF_H
+#define AVCODEC_BSF_H
+
+#include "libavutil/dict.h"
+#include "libavutil/log.h"
+#include "libavutil/rational.h"
+
+#include "codec_id.h"
+#include "codec_par.h"
+#include "packet.h"
+
+/**
+ * @defgroup lavc_bsf Bitstream filters
+ * @ingroup libavc
+ *
+ * Bitstream filters transform encoded media data without decoding it. This
+ * allows e.g. manipulating various header values. Bitstream filters operate on
+ * @ref AVPacket "AVPackets".
+ *
+ * The bitstream filtering API is centered around two structures:
+ * AVBitStreamFilter and AVBSFContext. The former represents a bitstream filter
+ * in abstract, the latter a specific filtering process. Obtain an
+ * AVBitStreamFilter using av_bsf_get_by_name() or av_bsf_iterate(), then pass
+ * it to av_bsf_alloc() to create an AVBSFContext. Fill in the user-settable
+ * AVBSFContext fields, as described in its documentation, then call
+ * av_bsf_init() to prepare the filter context for use.
+ *
+ * Submit packets for filtering using av_bsf_send_packet(), obtain filtered
+ * results with av_bsf_receive_packet(). When no more input packets will be
+ * sent, submit a NULL AVPacket to signal the end of the stream to the filter.
+ * av_bsf_receive_packet() will then return trailing packets, if any are
+ * produced by the filter.
+ *
+ * Finally, free the filter context with av_bsf_free().
+ * @{
+ */
+
+/**
+ * The bitstream filter state.
+ *
+ * This struct must be allocated with av_bsf_alloc() and freed with
+ * av_bsf_free().
+ *
+ * The fields in the struct will only be changed (by the caller or by the
+ * filter) as described in their documentation, and are to be considered
+ * immutable otherwise.
+ */
+typedef struct AVBSFContext {
+    /**
+     * A class for logging and AVOptions
+     */
+    const AVClass *av_class;
+
+    /**
+     * The bitstream filter this context is an instance of.
+     */
+    const struct AVBitStreamFilter *filter;
+
+    /**
+     * Opaque filter-specific private data. If filter->priv_class is non-NULL,
+     * this is an AVOptions-enabled struct.
+     */
+    void *priv_data;
+
+    /**
+     * Parameters of the input stream. This field is allocated in
+     * av_bsf_alloc(), it needs to be filled by the caller before
+     * av_bsf_init().
+     */
+    AVCodecParameters *par_in;
+
+    /**
+     * Parameters of the output stream. This field is allocated in
+     * av_bsf_alloc(), it is set by the filter in av_bsf_init().
+     */
+    AVCodecParameters *par_out;
+
+    /**
+     * The timebase used for the timestamps of the input packets. Set by the
+     * caller before av_bsf_init().
+     */
+    AVRational time_base_in;
+
+    /**
+     * The timebase used for the timestamps of the output packets. Set by the
+     * filter in av_bsf_init().
+     */
+    AVRational time_base_out;
+} AVBSFContext;
+
+typedef struct AVBitStreamFilter {
+    const char *name;
+
+    /**
+     * A list of codec ids supported by the filter, terminated by
+     * AV_CODEC_ID_NONE.
+     * May be NULL, in that case the bitstream filter works with any codec id.
+     */
+    const enum AVCodecID *codec_ids;
+
+    /**
+     * A class for the private data, used to declare bitstream filter private
+     * AVOptions. This field is NULL for bitstream filters that do not declare
+     * any options.
+     *
+     * If this field is non-NULL, the first member of the filter private data
+     * must be a pointer to AVClass, which will be set by libavcodec generic
+     * code to this class.
+     */
+    const AVClass *priv_class;
+} AVBitStreamFilter;
+
+/**
+ * @return a bitstream filter with the specified name or NULL if no such
+ *         bitstream filter exists.
+ */
+const AVBitStreamFilter *av_bsf_get_by_name(const char *name);
+
+/**
+ * Iterate over all registered bitstream filters.
+ *
+ * @param opaque a pointer where libavcodec will store the iteration state. Must
+ *               point to NULL to start the iteration.
+ *
+ * @return the next registered bitstream filter or NULL when the iteration is
+ *         finished
+ */
+const AVBitStreamFilter *av_bsf_iterate(void **opaque);
+
+/**
+ * Allocate a context for a given bitstream filter. The caller must fill in the
+ * context parameters as described in the documentation and then call
+ * av_bsf_init() before sending any data to the filter.
+ *
+ * @param filter the filter for which to allocate an instance.
+ * @param[out] ctx a pointer into which the pointer to the newly-allocated context
+ *                 will be written. It must be freed with av_bsf_free() after the
+ *                 filtering is done.
+ *
+ * @return 0 on success, a negative AVERROR code on failure
+ */
+int av_bsf_alloc(const AVBitStreamFilter *filter, AVBSFContext **ctx);
+
+/**
+ * Prepare the filter for use, after all the parameters and options have been
+ * set.
+ *
+ * @param ctx a AVBSFContext previously allocated with av_bsf_alloc()
+ */
+int av_bsf_init(AVBSFContext *ctx);
+
+/**
+ * Submit a packet for filtering.
+ *
+ * After sending each packet, the filter must be completely drained by calling
+ * av_bsf_receive_packet() repeatedly until it returns AVERROR(EAGAIN) or
+ * AVERROR_EOF.
+ *
+ * @param ctx an initialized AVBSFContext
+ * @param pkt the packet to filter. The bitstream filter will take ownership of
+ * the packet and reset the contents of pkt. pkt is not touched if an error occurs.
+ * If pkt is empty (i.e. NULL, or pkt->data is NULL and pkt->side_data_elems zero),
+ * it signals the end of the stream (i.e. no more non-empty packets will be sent;
+ * sending more empty packets does nothing) and will cause the filter to output
+ * any packets it may have buffered internally.
+ *
+ * @return
+ *  - 0 on success.
+ *  - AVERROR(EAGAIN) if packets need to be retrieved from the filter (using
+ *    av_bsf_receive_packet()) before new input can be consumed.
+ *  - Another negative AVERROR value if an error occurs.
+ */
+int av_bsf_send_packet(AVBSFContext *ctx, AVPacket *pkt);
+
+/**
+ * Retrieve a filtered packet.
+ *
+ * @param ctx an initialized AVBSFContext
+ * @param[out] pkt this struct will be filled with the contents of the filtered
+ *                 packet. It is owned by the caller and must be freed using
+ *                 av_packet_unref() when it is no longer needed.
+ *                 This parameter should be "clean" (i.e. freshly allocated
+ *                 with av_packet_alloc() or unreffed with av_packet_unref())
+ *                 when this function is called. If this function returns
+ *                 successfully, the contents of pkt will be completely
+ *                 overwritten by the returned data. On failure, pkt is not
+ *                 touched.
+ *
+ * @return
+ *  - 0 on success.
+ *  - AVERROR(EAGAIN) if more packets need to be sent to the filter (using
+ *    av_bsf_send_packet()) to get more output.
+ *  - AVERROR_EOF if there will be no further output from the filter.
+ *  - Another negative AVERROR value if an error occurs.
+ *
+ * @note one input packet may result in several output packets, so after sending
+ * a packet with av_bsf_send_packet(), this function needs to be called
+ * repeatedly until it stops returning 0. It is also possible for a filter to
+ * output fewer packets than were sent to it, so this function may return
+ * AVERROR(EAGAIN) immediately after a successful av_bsf_send_packet() call.
+ */
+int av_bsf_receive_packet(AVBSFContext *ctx, AVPacket *pkt);
+
+/**
+ * Reset the internal bitstream filter state. Should be called e.g. when seeking.
+ */
+void av_bsf_flush(AVBSFContext *ctx);
+
+/**
+ * Free a bitstream filter context and everything associated with it; write NULL
+ * into the supplied pointer.
+ */
+void av_bsf_free(AVBSFContext **ctx);
+
+/**
+ * Get the AVClass for AVBSFContext. It can be used in combination with
+ * AV_OPT_SEARCH_FAKE_OBJ for examining options.
+ *
+ * @see av_opt_find().
+ */
+const AVClass *av_bsf_get_class(void);
+
+/**
+ * Structure for chain/list of bitstream filters.
+ * Empty list can be allocated by av_bsf_list_alloc().
+ */
+typedef struct AVBSFList AVBSFList;
+
+/**
+ * Allocate empty list of bitstream filters.
+ * The list must be later freed by av_bsf_list_free()
+ * or finalized by av_bsf_list_finalize().
+ *
+ * @return Pointer to @ref AVBSFList on success, NULL in case of failure
+ */
+AVBSFList *av_bsf_list_alloc(void);
+
+/**
+ * Free list of bitstream filters.
+ *
+ * @param lst Pointer to pointer returned by av_bsf_list_alloc()
+ */
+void av_bsf_list_free(AVBSFList **lst);
+
+/**
+ * Append bitstream filter to the list of bitstream filters.
+ *
+ * @param lst List to append to
+ * @param bsf Filter context to be appended
+ *
+ * @return >=0 on success, negative AVERROR in case of failure
+ */
+int av_bsf_list_append(AVBSFList *lst, AVBSFContext *bsf);
+
+/**
+ * Construct new bitstream filter context given it's name and options
+ * and append it to the list of bitstream filters.
+ *
+ * @param lst      List to append to
+ * @param bsf_name Name of the bitstream filter
+ * @param options  Options for the bitstream filter, can be set to NULL
+ *
+ * @return >=0 on success, negative AVERROR in case of failure
+ */
+int av_bsf_list_append2(AVBSFList *lst, const char * bsf_name, AVDictionary **options);
+/**
+ * Finalize list of bitstream filters.
+ *
+ * This function will transform @ref AVBSFList to single @ref AVBSFContext,
+ * so the whole chain of bitstream filters can be treated as single filter
+ * freshly allocated by av_bsf_alloc().
+ * If the call is successful, @ref AVBSFList structure is freed and lst
+ * will be set to NULL. In case of failure, caller is responsible for
+ * freeing the structure by av_bsf_list_free()
+ *
+ * @param      lst Filter list structure to be transformed
+ * @param[out] bsf Pointer to be set to newly created @ref AVBSFContext structure
+ *                 representing the chain of bitstream filters
+ *
+ * @return >=0 on success, negative AVERROR in case of failure
+ */
+int av_bsf_list_finalize(AVBSFList **lst, AVBSFContext **bsf);
+
+/**
+ * Parse string describing list of bitstream filters and create single
+ * @ref AVBSFContext describing the whole chain of bitstream filters.
+ * Resulting @ref AVBSFContext can be treated as any other @ref AVBSFContext freshly
+ * allocated by av_bsf_alloc().
+ *
+ * @param      str String describing chain of bitstream filters in format
+ *                 `bsf1[=opt1=val1:opt2=val2][,bsf2]`
+ * @param[out] bsf Pointer to be set to newly created @ref AVBSFContext structure
+ *                 representing the chain of bitstream filters
+ *
+ * @return >=0 on success, negative AVERROR in case of failure
+ */
+int av_bsf_list_parse_str(const char *str, AVBSFContext **bsf);
+
+/**
+ * Get null/pass-through bitstream filter.
+ *
+ * @param[out] bsf Pointer to be set to new instance of pass-through bitstream filter
+ *
+ * @return
+ */
+int av_bsf_get_null_filter(AVBSFContext **bsf);
+
+/**
+ * @}
+ */
+
+#endif // AVCODEC_BSF_H

ffmpeg/include/libavcodec/codec.h

@@ -0,0 +1,382 @@
+/*
+ * AVCodec public API
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_CODEC_H
+#define AVCODEC_CODEC_H
+
+#include <stdint.h>
+
+#include "libavutil/avutil.h"
+#include "libavutil/hwcontext.h"
+#include "libavutil/log.h"
+#include "libavutil/pixfmt.h"
+#include "libavutil/rational.h"
+#include "libavutil/samplefmt.h"
+
+#include "libavcodec/codec_id.h"
+#include "libavcodec/version_major.h"
+
+/**
+ * @addtogroup lavc_core
+ * @{
+ */
+
+/**
+ * Decoder can use draw_horiz_band callback.
+ */
+#define AV_CODEC_CAP_DRAW_HORIZ_BAND     (1 <<  0)
+/**
+ * Codec uses get_buffer() or get_encode_buffer() for allocating buffers and
+ * supports custom allocators.
+ * If not set, it might not use get_buffer() or get_encode_buffer() at all, or
+ * use operations that assume the buffer was allocated by
+ * avcodec_default_get_buffer2 or avcodec_default_get_encode_buffer.
+ */
+#define AV_CODEC_CAP_DR1                 (1 <<  1)
+/**
+ * Encoder or decoder requires flushing with NULL input at the end in order to
+ * give the complete and correct output.
+ *
+ * NOTE: If this flag is not set, the codec is guaranteed to never be fed with
+ *       with NULL data. The user can still send NULL data to the public encode
+ *       or decode function, but libavcodec will not pass it along to the codec
+ *       unless this flag is set.
+ *
+ * Decoders:
+ * The decoder has a non-zero delay and needs to be fed with avpkt->data=NULL,
+ * avpkt->size=0 at the end to get the delayed data until the decoder no longer
+ * returns frames.
+ *
+ * Encoders:
+ * The encoder needs to be fed with NULL data at the end of encoding until the
+ * encoder no longer returns data.
+ *
+ * NOTE: For encoders implementing the AVCodec.encode2() function, setting this
+ *       flag also means that the encoder must set the pts and duration for
+ *       each output packet. If this flag is not set, the pts and duration will
+ *       be determined by libavcodec from the input frame.
+ */
+#define AV_CODEC_CAP_DELAY               (1 <<  5)
+/**
+ * Codec can be fed a final frame with a smaller size.
+ * This can be used to prevent truncation of the last audio samples.
+ */
+#define AV_CODEC_CAP_SMALL_LAST_FRAME    (1 <<  6)
+
+#if FF_API_SUBFRAMES
+/**
+ * Codec can output multiple frames per AVPacket
+ * Normally demuxers return one frame at a time, demuxers which do not do
+ * are connected to a parser to split what they return into proper frames.
+ * This flag is reserved to the very rare category of codecs which have a
+ * bitstream that cannot be split into frames without timeconsuming
+ * operations like full decoding. Demuxers carrying such bitstreams thus
+ * may return multiple frames in a packet. This has many disadvantages like
+ * prohibiting stream copy in many cases thus it should only be considered
+ * as a last resort.
+ */
+#define AV_CODEC_CAP_SUBFRAMES           (1 <<  8)
+#endif
+
+/**
+ * Codec is experimental and is thus avoided in favor of non experimental
+ * encoders
+ */
+#define AV_CODEC_CAP_EXPERIMENTAL        (1 <<  9)
+/**
+ * Codec should fill in channel configuration and samplerate instead of container
+ */
+#define AV_CODEC_CAP_CHANNEL_CONF        (1 << 10)
+/**
+ * Codec supports frame-level multithreading.
+ */
+#define AV_CODEC_CAP_FRAME_THREADS       (1 << 12)
+/**
+ * Codec supports slice-based (or partition-based) multithreading.
+ */
+#define AV_CODEC_CAP_SLICE_THREADS       (1 << 13)
+/**
+ * Codec supports changed parameters at any point.
+ */
+#define AV_CODEC_CAP_PARAM_CHANGE        (1 << 14)
+/**
+ * Codec supports multithreading through a method other than slice- or
+ * frame-level multithreading. Typically this marks wrappers around
+ * multithreading-capable external libraries.
+ */
+#define AV_CODEC_CAP_OTHER_THREADS       (1 << 15)
+/**
+ * Audio encoder supports receiving a different number of samples in each call.
+ */
+#define AV_CODEC_CAP_VARIABLE_FRAME_SIZE (1 << 16)
+/**
+ * Decoder is not a preferred choice for probing.
+ * This indicates that the decoder is not a good choice for probing.
+ * It could for example be an expensive to spin up hardware decoder,
+ * or it could simply not provide a lot of useful information about
+ * the stream.
+ * A decoder marked with this flag should only be used as last resort
+ * choice for probing.
+ */
+#define AV_CODEC_CAP_AVOID_PROBING       (1 << 17)
+
+/**
+ * Codec is backed by a hardware implementation. Typically used to
+ * identify a non-hwaccel hardware decoder. For information about hwaccels, use
+ * avcodec_get_hw_config() instead.
+ */
+#define AV_CODEC_CAP_HARDWARE            (1 << 18)
+
+/**
+ * Codec is potentially backed by a hardware implementation, but not
+ * necessarily. This is used instead of AV_CODEC_CAP_HARDWARE, if the
+ * implementation provides some sort of internal fallback.
+ */
+#define AV_CODEC_CAP_HYBRID              (1 << 19)
+
+/**
+ * This encoder can reorder user opaque values from input AVFrames and return
+ * them with corresponding output packets.
+ * @see AV_CODEC_FLAG_COPY_OPAQUE
+ */
+#define AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE (1 << 20)
+
+/**
+ * This encoder can be flushed using avcodec_flush_buffers(). If this flag is
+ * not set, the encoder must be closed and reopened to ensure that no frames
+ * remain pending.
+ */
+#define AV_CODEC_CAP_ENCODER_FLUSH   (1 << 21)
+
+/**
+ * The encoder is able to output reconstructed frame data, i.e. raw frames that
+ * would be produced by decoding the encoded bitstream.
+ *
+ * Reconstructed frame output is enabled by the AV_CODEC_FLAG_RECON_FRAME flag.
+ */
+#define AV_CODEC_CAP_ENCODER_RECON_FRAME (1 << 22)
+
+/**
+ * AVProfile.
+ */
+typedef struct AVProfile {
+    int profile;
+    const char *name; ///< short name for the profile
+} AVProfile;
+
+/**
+ * AVCodec.
+ */
+typedef struct AVCodec {
+    /**
+     * Name of the codec implementation.
+     * The name is globally unique among encoders and among decoders (but an
+     * encoder and a decoder can share the same name).
+     * This is the primary way to find a codec from the user perspective.
+     */
+    const char *name;
+    /**
+     * Descriptive name for the codec, meant to be more human readable than name.
+     * You should use the NULL_IF_CONFIG_SMALL() macro to define it.
+     */
+    const char *long_name;
+    enum AVMediaType type;
+    enum AVCodecID id;
+    /**
+     * Codec capabilities.
+     * see AV_CODEC_CAP_*
+     */
+    int capabilities;
+    uint8_t max_lowres;                     ///< maximum value for lowres supported by the decoder
+
+    /**
+     * Deprecated codec capabilities.
+     */
+    attribute_deprecated
+    const AVRational *supported_framerates; ///< @deprecated use avcodec_get_supported_config()
+    attribute_deprecated
+    const enum AVPixelFormat *pix_fmts;     ///< @deprecated use avcodec_get_supported_config()
+    attribute_deprecated
+    const int *supported_samplerates;       ///< @deprecated use avcodec_get_supported_config()
+    attribute_deprecated
+    const enum AVSampleFormat *sample_fmts; ///< @deprecated use avcodec_get_supported_config()
+
+    const AVClass *priv_class;              ///< AVClass for the private context
+    const AVProfile *profiles;              ///< array of recognized profiles, or NULL if unknown, array is terminated by {AV_PROFILE_UNKNOWN}
+
+    /**
+     * Group name of the codec implementation.
+     * This is a short symbolic name of the wrapper backing this codec. A
+     * wrapper uses some kind of external implementation for the codec, such
+     * as an external library, or a codec implementation provided by the OS or
+     * the hardware.
+     * If this field is NULL, this is a builtin, libavcodec native codec.
+     * If non-NULL, this will be the suffix in AVCodec.name in most cases
+     * (usually AVCodec.name will be of the form "<codec_name>_<wrapper_name>").
+     */
+    const char *wrapper_name;
+
+    /**
+     * Array of supported channel layouts, terminated with a zeroed layout.
+     * @deprecated use avcodec_get_supported_config()
+     */
+    attribute_deprecated
+    const AVChannelLayout *ch_layouts;
+} AVCodec;
+
+/**
+ * Iterate over all registered codecs.
+ *
+ * @param opaque a pointer where libavcodec will store the iteration state. Must
+ *               point to NULL to start the iteration.
+ *
+ * @return the next registered codec or NULL when the iteration is
+ *         finished
+ */
+const AVCodec *av_codec_iterate(void **opaque);
+
+/**
+ * Find a registered decoder with a matching codec ID.
+ *
+ * @param id AVCodecID of the requested decoder
+ * @return A decoder if one was found, NULL otherwise.
+ */
+const AVCodec *avcodec_find_decoder(enum AVCodecID id);
+
+/**
+ * Find a registered decoder with the specified name.
+ *
+ * @param name name of the requested decoder
+ * @return A decoder if one was found, NULL otherwise.
+ */
+const AVCodec *avcodec_find_decoder_by_name(const char *name);
+
+/**
+ * Find a registered encoder with a matching codec ID.
+ *
+ * @param id AVCodecID of the requested encoder
+ * @return An encoder if one was found, NULL otherwise.
+ */
+const AVCodec *avcodec_find_encoder(enum AVCodecID id);
+
+/**
+ * Find a registered encoder with the specified name.
+ *
+ * @param name name of the requested encoder
+ * @return An encoder if one was found, NULL otherwise.
+ */
+const AVCodec *avcodec_find_encoder_by_name(const char *name);
+/**
+ * @return a non-zero number if codec is an encoder, zero otherwise
+ */
+int av_codec_is_encoder(const AVCodec *codec);
+
+/**
+ * @return a non-zero number if codec is a decoder, zero otherwise
+ */
+int av_codec_is_decoder(const AVCodec *codec);
+
+/**
+ * Return a name for the specified profile, if available.
+ *
+ * @param codec the codec that is searched for the given profile
+ * @param profile the profile value for which a name is requested
+ * @return A name for the profile if found, NULL otherwise.
+ */
+const char *av_get_profile_name(const AVCodec *codec, int profile);
+
+enum {
+    /**
+     * The codec supports this format via the hw_device_ctx interface.
+     *
+     * When selecting this format, AVCodecContext.hw_device_ctx should
+     * have been set to a device of the specified type before calling
+     * avcodec_open2().
+     */
+    AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX = 0x01,
+    /**
+     * The codec supports this format via the hw_frames_ctx interface.
+     *
+     * When selecting this format for a decoder,
+     * AVCodecContext.hw_frames_ctx should be set to a suitable frames
+     * context inside the get_format() callback.  The frames context
+     * must have been created on a device of the specified type.
+     *
+     * When selecting this format for an encoder,
+     * AVCodecContext.hw_frames_ctx should be set to the context which
+     * will be used for the input frames before calling avcodec_open2().
+     */
+    AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX = 0x02,
+    /**
+     * The codec supports this format by some internal method.
+     *
+     * This format can be selected without any additional configuration -
+     * no device or frames context is required.
+     */
+    AV_CODEC_HW_CONFIG_METHOD_INTERNAL      = 0x04,
+    /**
+     * The codec supports this format by some ad-hoc method.
+     *
+     * Additional settings and/or function calls are required.  See the
+     * codec-specific documentation for details.  (Methods requiring
+     * this sort of configuration are deprecated and others should be
+     * used in preference.)
+     */
+    AV_CODEC_HW_CONFIG_METHOD_AD_HOC        = 0x08,
+};
+
+typedef struct AVCodecHWConfig {
+    /**
+     * For decoders, a hardware pixel format which that decoder may be
+     * able to decode to if suitable hardware is available.
+     *
+     * For encoders, a pixel format which the encoder may be able to
+     * accept.  If set to AV_PIX_FMT_NONE, this applies to all pixel
+     * formats supported by the codec.
+     */
+    enum AVPixelFormat pix_fmt;
+    /**
+     * Bit set of AV_CODEC_HW_CONFIG_METHOD_* flags, describing the possible
+     * setup methods which can be used with this configuration.
+     */
+    int methods;
+    /**
+     * The device type associated with the configuration.
+     *
+     * Must be set for AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX and
+     * AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX, otherwise unused.
+     */
+    enum AVHWDeviceType device_type;
+} AVCodecHWConfig;
+
+/**
+ * Retrieve supported hardware configurations for a codec.
+ *
+ * Values of index from zero to some maximum return the indexed configuration
+ * descriptor; all other values return NULL.  If the codec does not support
+ * any hardware configurations then it will always return NULL.
+ */
+const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index);
+
+/**
+ * @}
+ */
+
+#endif /* AVCODEC_CODEC_H */

ffmpeg/include/libavcodec/codec_desc.h

@@ -0,0 +1,134 @@
+/*
+ * Codec descriptors public API
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_CODEC_DESC_H
+#define AVCODEC_CODEC_DESC_H
+
+#include "libavutil/avutil.h"
+
+#include "codec_id.h"
+
+/**
+ * @addtogroup lavc_core
+ * @{
+ */
+
+/**
+ * This struct describes the properties of a single codec described by an
+ * AVCodecID.
+ * @see avcodec_descriptor_get()
+ */
+typedef struct AVCodecDescriptor {
+    enum AVCodecID     id;
+    enum AVMediaType type;
+    /**
+     * Name of the codec described by this descriptor. It is non-empty and
+     * unique for each codec descriptor. It should contain alphanumeric
+     * characters and '_' only.
+     */
+    const char      *name;
+    /**
+     * A more descriptive name for this codec. May be NULL.
+     */
+    const char *long_name;
+    /**
+     * Codec properties, a combination of AV_CODEC_PROP_* flags.
+     */
+    int             props;
+    /**
+     * MIME type(s) associated with the codec.
+     * May be NULL; if not, a NULL-terminated array of MIME types.
+     * The first item is always non-NULL and is the preferred MIME type.
+     */
+    const char *const *mime_types;
+    /**
+     * If non-NULL, an array of profiles recognized for this codec.
+     * Terminated with AV_PROFILE_UNKNOWN.
+     */
+    const struct AVProfile *profiles;
+} AVCodecDescriptor;
+
+/**
+ * Codec uses only intra compression.
+ * Video and audio codecs only.
+ */
+#define AV_CODEC_PROP_INTRA_ONLY    (1 << 0)
+/**
+ * Codec supports lossy compression. Audio and video codecs only.
+ * @note a codec may support both lossy and lossless
+ * compression modes
+ */
+#define AV_CODEC_PROP_LOSSY         (1 << 1)
+/**
+ * Codec supports lossless compression. Audio and video codecs only.
+ */
+#define AV_CODEC_PROP_LOSSLESS      (1 << 2)
+/**
+ * Codec supports frame reordering. That is, the coded order (the order in which
+ * the encoded packets are output by the encoders / stored / input to the
+ * decoders) may be different from the presentation order of the corresponding
+ * frames.
+ *
+ * For codecs that do not have this property set, PTS and DTS should always be
+ * equal.
+ */
+#define AV_CODEC_PROP_REORDER       (1 << 3)
+
+/**
+ * Video codec supports separate coding of fields in interlaced frames.
+ */
+#define AV_CODEC_PROP_FIELDS        (1 << 4)
+
+/**
+ * Subtitle codec is bitmap based
+ * Decoded AVSubtitle data can be read from the AVSubtitleRect->pict field.
+ */
+#define AV_CODEC_PROP_BITMAP_SUB    (1 << 16)
+/**
+ * Subtitle codec is text based.
+ * Decoded AVSubtitle data can be read from the AVSubtitleRect->ass field.
+ */
+#define AV_CODEC_PROP_TEXT_SUB      (1 << 17)
+
+/**
+ * @return descriptor for given codec ID or NULL if no descriptor exists.
+ */
+const AVCodecDescriptor *avcodec_descriptor_get(enum AVCodecID id);
+
+/**
+ * Iterate over all codec descriptors known to libavcodec.
+ *
+ * @param prev previous descriptor. NULL to get the first descriptor.
+ *
+ * @return next descriptor or NULL after the last descriptor
+ */
+const AVCodecDescriptor *avcodec_descriptor_next(const AVCodecDescriptor *prev);
+
+/**
+ * @return codec descriptor with the given name or NULL if no such descriptor
+ *         exists.
+ */
+const AVCodecDescriptor *avcodec_descriptor_get_by_name(const char *name);
+
+/**
+ * @}
+ */
+
+#endif // AVCODEC_CODEC_DESC_H

ffmpeg/include/libavcodec/codec_id.h

@@ -0,0 +1,677 @@
+/*
+ * Codec IDs
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_CODEC_ID_H
+#define AVCODEC_CODEC_ID_H
+
+#include "libavutil/avutil.h"
+#include "libavutil/samplefmt.h"
+
+#include "version_major.h"
+
+/**
+ * @addtogroup lavc_core
+ * @{
+ */
+
+/**
+ * Identify the syntax and semantics of the bitstream.
+ * The principle is roughly:
+ * Two decoders with the same ID can decode the same streams.
+ * Two encoders with the same ID can encode compatible streams.
+ * There may be slight deviations from the principle due to implementation
+ * details.
+ *
+ * If you add a codec ID to this list, add it so that
+ * 1. no value of an existing codec ID changes (that would break ABI),
+ * 2. it is as close as possible to similar codecs
+ *
+ * After adding new codec IDs, do not forget to add an entry to the codec
+ * descriptor list and bump libavcodec minor version.
+ */
+enum AVCodecID {
+    AV_CODEC_ID_NONE,
+
+    /* video codecs */
+    AV_CODEC_ID_MPEG1VIDEO,
+    AV_CODEC_ID_MPEG2VIDEO, ///< preferred ID for MPEG-1/2 video decoding
+    AV_CODEC_ID_H261,
+    AV_CODEC_ID_H263,
+    AV_CODEC_ID_RV10,
+    AV_CODEC_ID_RV20,
+    AV_CODEC_ID_MJPEG,
+    AV_CODEC_ID_MJPEGB,
+    AV_CODEC_ID_LJPEG,
+    AV_CODEC_ID_SP5X,
+    AV_CODEC_ID_JPEGLS,
+    AV_CODEC_ID_MPEG4,
+    AV_CODEC_ID_RAWVIDEO,
+    AV_CODEC_ID_MSMPEG4V1,
+    AV_CODEC_ID_MSMPEG4V2,
+    AV_CODEC_ID_MSMPEG4V3,
+    AV_CODEC_ID_WMV1,
+    AV_CODEC_ID_WMV2,
+    AV_CODEC_ID_H263P,
+    AV_CODEC_ID_H263I,
+    AV_CODEC_ID_FLV1,
+    AV_CODEC_ID_SVQ1,
+    AV_CODEC_ID_SVQ3,
+    AV_CODEC_ID_DVVIDEO,
+    AV_CODEC_ID_HUFFYUV,
+    AV_CODEC_ID_CYUV,
+    AV_CODEC_ID_H264,
+    AV_CODEC_ID_INDEO3,
+    AV_CODEC_ID_VP3,
+    AV_CODEC_ID_THEORA,
+    AV_CODEC_ID_ASV1,
+    AV_CODEC_ID_ASV2,
+    AV_CODEC_ID_FFV1,
+    AV_CODEC_ID_4XM,
+    AV_CODEC_ID_VCR1,
+    AV_CODEC_ID_CLJR,
+    AV_CODEC_ID_MDEC,
+    AV_CODEC_ID_ROQ,
+    AV_CODEC_ID_INTERPLAY_VIDEO,
+    AV_CODEC_ID_XAN_WC3,
+    AV_CODEC_ID_XAN_WC4,
+    AV_CODEC_ID_RPZA,
+    AV_CODEC_ID_CINEPAK,
+    AV_CODEC_ID_WS_VQA,
+    AV_CODEC_ID_MSRLE,
+    AV_CODEC_ID_MSVIDEO1,
+    AV_CODEC_ID_IDCIN,
+    AV_CODEC_ID_8BPS,
+    AV_CODEC_ID_SMC,
+    AV_CODEC_ID_FLIC,
+    AV_CODEC_ID_TRUEMOTION1,
+    AV_CODEC_ID_VMDVIDEO,
+    AV_CODEC_ID_MSZH,
+    AV_CODEC_ID_ZLIB,
+    AV_CODEC_ID_QTRLE,
+    AV_CODEC_ID_TSCC,
+    AV_CODEC_ID_ULTI,
+    AV_CODEC_ID_QDRAW,
+    AV_CODEC_ID_VIXL,
+    AV_CODEC_ID_QPEG,
+    AV_CODEC_ID_PNG,
+    AV_CODEC_ID_PPM,
+    AV_CODEC_ID_PBM,
+    AV_CODEC_ID_PGM,
+    AV_CODEC_ID_PGMYUV,
+    AV_CODEC_ID_PAM,
+    AV_CODEC_ID_FFVHUFF,
+    AV_CODEC_ID_RV30,
+    AV_CODEC_ID_RV40,
+    AV_CODEC_ID_VC1,
+    AV_CODEC_ID_WMV3,
+    AV_CODEC_ID_LOCO,
+    AV_CODEC_ID_WNV1,
+    AV_CODEC_ID_AASC,
+    AV_CODEC_ID_INDEO2,
+    AV_CODEC_ID_FRAPS,
+    AV_CODEC_ID_TRUEMOTION2,
+    AV_CODEC_ID_BMP,
+    AV_CODEC_ID_CSCD,
+    AV_CODEC_ID_MMVIDEO,
+    AV_CODEC_ID_ZMBV,
+    AV_CODEC_ID_AVS,
+    AV_CODEC_ID_SMACKVIDEO,
+    AV_CODEC_ID_NUV,
+    AV_CODEC_ID_KMVC,
+    AV_CODEC_ID_FLASHSV,
+    AV_CODEC_ID_CAVS,
+    AV_CODEC_ID_JPEG2000,
+    AV_CODEC_ID_VMNC,
+    AV_CODEC_ID_VP5,
+    AV_CODEC_ID_VP6,
+    AV_CODEC_ID_VP6F,
+    AV_CODEC_ID_TARGA,
+    AV_CODEC_ID_DSICINVIDEO,
+    AV_CODEC_ID_TIERTEXSEQVIDEO,
+    AV_CODEC_ID_TIFF,
+    AV_CODEC_ID_GIF,
+    AV_CODEC_ID_DXA,
+    AV_CODEC_ID_DNXHD,
+    AV_CODEC_ID_THP,
+    AV_CODEC_ID_SGI,
+    AV_CODEC_ID_C93,
+    AV_CODEC_ID_BETHSOFTVID,
+    AV_CODEC_ID_PTX,
+    AV_CODEC_ID_TXD,
+    AV_CODEC_ID_VP6A,
+    AV_CODEC_ID_AMV,
+    AV_CODEC_ID_VB,
+    AV_CODEC_ID_PCX,
+    AV_CODEC_ID_SUNRAST,
+    AV_CODEC_ID_INDEO4,
+    AV_CODEC_ID_INDEO5,
+    AV_CODEC_ID_MIMIC,
+    AV_CODEC_ID_RL2,
+    AV_CODEC_ID_ESCAPE124,
+    AV_CODEC_ID_DIRAC,
+    AV_CODEC_ID_BFI,
+    AV_CODEC_ID_CMV,
+    AV_CODEC_ID_MOTIONPIXELS,
+    AV_CODEC_ID_TGV,
+    AV_CODEC_ID_TGQ,
+    AV_CODEC_ID_TQI,
+    AV_CODEC_ID_AURA,
+    AV_CODEC_ID_AURA2,
+    AV_CODEC_ID_V210X,
+    AV_CODEC_ID_TMV,
+    AV_CODEC_ID_V210,
+    AV_CODEC_ID_DPX,
+    AV_CODEC_ID_MAD,
+    AV_CODEC_ID_FRWU,
+    AV_CODEC_ID_FLASHSV2,
+    AV_CODEC_ID_CDGRAPHICS,
+    AV_CODEC_ID_R210,
+    AV_CODEC_ID_ANM,
+    AV_CODEC_ID_BINKVIDEO,
+    AV_CODEC_ID_IFF_ILBM,
+#define AV_CODEC_ID_IFF_BYTERUN1 AV_CODEC_ID_IFF_ILBM
+    AV_CODEC_ID_KGV1,
+    AV_CODEC_ID_YOP,
+    AV_CODEC_ID_VP8,
+    AV_CODEC_ID_PICTOR,
+    AV_CODEC_ID_ANSI,
+    AV_CODEC_ID_A64_MULTI,
+    AV_CODEC_ID_A64_MULTI5,
+    AV_CODEC_ID_R10K,
+    AV_CODEC_ID_MXPEG,
+    AV_CODEC_ID_LAGARITH,
+    AV_CODEC_ID_PRORES,
+    AV_CODEC_ID_JV,
+    AV_CODEC_ID_DFA,
+    AV_CODEC_ID_WMV3IMAGE,
+    AV_CODEC_ID_VC1IMAGE,
+    AV_CODEC_ID_UTVIDEO,
+    AV_CODEC_ID_BMV_VIDEO,
+    AV_CODEC_ID_VBLE,
+    AV_CODEC_ID_DXTORY,
+#if FF_API_V408_CODECID
+    AV_CODEC_ID_V410,
+#endif
+    AV_CODEC_ID_XWD,
+    AV_CODEC_ID_CDXL,
+    AV_CODEC_ID_XBM,
+    AV_CODEC_ID_ZEROCODEC,
+    AV_CODEC_ID_MSS1,
+    AV_CODEC_ID_MSA1,
+    AV_CODEC_ID_TSCC2,
+    AV_CODEC_ID_MTS2,
+    AV_CODEC_ID_CLLC,
+    AV_CODEC_ID_MSS2,
+    AV_CODEC_ID_VP9,
+    AV_CODEC_ID_AIC,
+    AV_CODEC_ID_ESCAPE130,
+    AV_CODEC_ID_G2M,
+    AV_CODEC_ID_WEBP,
+    AV_CODEC_ID_HNM4_VIDEO,
+    AV_CODEC_ID_HEVC,
+#define AV_CODEC_ID_H265 AV_CODEC_ID_HEVC
+    AV_CODEC_ID_FIC,
+    AV_CODEC_ID_ALIAS_PIX,
+    AV_CODEC_ID_BRENDER_PIX,
+    AV_CODEC_ID_PAF_VIDEO,
+    AV_CODEC_ID_EXR,
+    AV_CODEC_ID_VP7,
+    AV_CODEC_ID_SANM,
+    AV_CODEC_ID_SGIRLE,
+    AV_CODEC_ID_MVC1,
+    AV_CODEC_ID_MVC2,
+    AV_CODEC_ID_HQX,
+    AV_CODEC_ID_TDSC,
+    AV_CODEC_ID_HQ_HQA,
+    AV_CODEC_ID_HAP,
+    AV_CODEC_ID_DDS,
+    AV_CODEC_ID_DXV,
+    AV_CODEC_ID_SCREENPRESSO,
+    AV_CODEC_ID_RSCC,
+    AV_CODEC_ID_AVS2,
+    AV_CODEC_ID_PGX,
+    AV_CODEC_ID_AVS3,
+    AV_CODEC_ID_MSP2,
+    AV_CODEC_ID_VVC,
+#define AV_CODEC_ID_H266 AV_CODEC_ID_VVC
+    AV_CODEC_ID_Y41P,
+    AV_CODEC_ID_AVRP,
+    AV_CODEC_ID_012V,
+    AV_CODEC_ID_AVUI,
+    AV_CODEC_ID_TARGA_Y216,
+#if FF_API_V408_CODECID
+    AV_CODEC_ID_V308,
+    AV_CODEC_ID_V408,
+#endif
+    AV_CODEC_ID_YUV4,
+    AV_CODEC_ID_AVRN,
+    AV_CODEC_ID_CPIA,
+    AV_CODEC_ID_XFACE,
+    AV_CODEC_ID_SNOW,
+    AV_CODEC_ID_SMVJPEG,
+    AV_CODEC_ID_APNG,
+    AV_CODEC_ID_DAALA,
+    AV_CODEC_ID_CFHD,
+    AV_CODEC_ID_TRUEMOTION2RT,
+    AV_CODEC_ID_M101,
+    AV_CODEC_ID_MAGICYUV,
+    AV_CODEC_ID_SHEERVIDEO,
+    AV_CODEC_ID_YLC,
+    AV_CODEC_ID_PSD,
+    AV_CODEC_ID_PIXLET,
+    AV_CODEC_ID_SPEEDHQ,
+    AV_CODEC_ID_FMVC,
+    AV_CODEC_ID_SCPR,
+    AV_CODEC_ID_CLEARVIDEO,
+    AV_CODEC_ID_XPM,
+    AV_CODEC_ID_AV1,
+    AV_CODEC_ID_BITPACKED,
+    AV_CODEC_ID_MSCC,
+    AV_CODEC_ID_SRGC,
+    AV_CODEC_ID_SVG,
+    AV_CODEC_ID_GDV,
+    AV_CODEC_ID_FITS,
+    AV_CODEC_ID_IMM4,
+    AV_CODEC_ID_PROSUMER,
+    AV_CODEC_ID_MWSC,
+    AV_CODEC_ID_WCMV,
+    AV_CODEC_ID_RASC,
+    AV_CODEC_ID_HYMT,
+    AV_CODEC_ID_ARBC,
+    AV_CODEC_ID_AGM,
+    AV_CODEC_ID_LSCR,
+    AV_CODEC_ID_VP4,
+    AV_CODEC_ID_IMM5,
+    AV_CODEC_ID_MVDV,
+    AV_CODEC_ID_MVHA,
+    AV_CODEC_ID_CDTOONS,
+    AV_CODEC_ID_MV30,
+    AV_CODEC_ID_NOTCHLC,
+    AV_CODEC_ID_PFM,
+    AV_CODEC_ID_MOBICLIP,
+    AV_CODEC_ID_PHOTOCD,
+    AV_CODEC_ID_IPU,
+    AV_CODEC_ID_ARGO,
+    AV_CODEC_ID_CRI,
+    AV_CODEC_ID_SIMBIOSIS_IMX,
+    AV_CODEC_ID_SGA_VIDEO,
+    AV_CODEC_ID_GEM,
+    AV_CODEC_ID_VBN,
+    AV_CODEC_ID_JPEGXL,
+    AV_CODEC_ID_QOI,
+    AV_CODEC_ID_PHM,
+    AV_CODEC_ID_RADIANCE_HDR,
+    AV_CODEC_ID_WBMP,
+    AV_CODEC_ID_MEDIA100,
+    AV_CODEC_ID_VQC,
+    AV_CODEC_ID_PDV,
+    AV_CODEC_ID_EVC,
+    AV_CODEC_ID_RTV1,
+    AV_CODEC_ID_VMIX,
+    AV_CODEC_ID_LEAD,
+    AV_CODEC_ID_DNXUC,
+    AV_CODEC_ID_RV60,
+    AV_CODEC_ID_JPEGXL_ANIM,
+
+    /* various PCM "codecs" */
+    AV_CODEC_ID_FIRST_AUDIO = 0x10000,     ///< A dummy id pointing at the start of audio codecs
+    AV_CODEC_ID_PCM_S16LE = 0x10000,
+    AV_CODEC_ID_PCM_S16BE,
+    AV_CODEC_ID_PCM_U16LE,
+    AV_CODEC_ID_PCM_U16BE,
+    AV_CODEC_ID_PCM_S8,
+    AV_CODEC_ID_PCM_U8,
+    AV_CODEC_ID_PCM_MULAW,
+    AV_CODEC_ID_PCM_ALAW,
+    AV_CODEC_ID_PCM_S32LE,
+    AV_CODEC_ID_PCM_S32BE,
+    AV_CODEC_ID_PCM_U32LE,
+    AV_CODEC_ID_PCM_U32BE,
+    AV_CODEC_ID_PCM_S24LE,
+    AV_CODEC_ID_PCM_S24BE,
+    AV_CODEC_ID_PCM_U24LE,
+    AV_CODEC_ID_PCM_U24BE,
+    AV_CODEC_ID_PCM_S24DAUD,
+    AV_CODEC_ID_PCM_ZORK,
+    AV_CODEC_ID_PCM_S16LE_PLANAR,
+    AV_CODEC_ID_PCM_DVD,
+    AV_CODEC_ID_PCM_F32BE,
+    AV_CODEC_ID_PCM_F32LE,
+    AV_CODEC_ID_PCM_F64BE,
+    AV_CODEC_ID_PCM_F64LE,
+    AV_CODEC_ID_PCM_BLURAY,
+    AV_CODEC_ID_PCM_LXF,
+    AV_CODEC_ID_S302M,
+    AV_CODEC_ID_PCM_S8_PLANAR,
+    AV_CODEC_ID_PCM_S24LE_PLANAR,
+    AV_CODEC_ID_PCM_S32LE_PLANAR,
+    AV_CODEC_ID_PCM_S16BE_PLANAR,
+    AV_CODEC_ID_PCM_S64LE,
+    AV_CODEC_ID_PCM_S64BE,
+    AV_CODEC_ID_PCM_F16LE,
+    AV_CODEC_ID_PCM_F24LE,
+    AV_CODEC_ID_PCM_VIDC,
+    AV_CODEC_ID_PCM_SGA,
+
+    /* various ADPCM codecs */
+    AV_CODEC_ID_ADPCM_IMA_QT = 0x11000,
+    AV_CODEC_ID_ADPCM_IMA_WAV,
+    AV_CODEC_ID_ADPCM_IMA_DK3,
+    AV_CODEC_ID_ADPCM_IMA_DK4,
+    AV_CODEC_ID_ADPCM_IMA_WS,
+    AV_CODEC_ID_ADPCM_IMA_SMJPEG,
+    AV_CODEC_ID_ADPCM_MS,
+    AV_CODEC_ID_ADPCM_4XM,
+    AV_CODEC_ID_ADPCM_XA,
+    AV_CODEC_ID_ADPCM_ADX,
+    AV_CODEC_ID_ADPCM_EA,
+    AV_CODEC_ID_ADPCM_G726,
+    AV_CODEC_ID_ADPCM_CT,
+    AV_CODEC_ID_ADPCM_SWF,
+    AV_CODEC_ID_ADPCM_YAMAHA,
+    AV_CODEC_ID_ADPCM_SBPRO_4,
+    AV_CODEC_ID_ADPCM_SBPRO_3,
+    AV_CODEC_ID_ADPCM_SBPRO_2,
+    AV_CODEC_ID_ADPCM_THP,
+    AV_CODEC_ID_ADPCM_IMA_AMV,
+    AV_CODEC_ID_ADPCM_EA_R1,
+    AV_CODEC_ID_ADPCM_EA_R3,
+    AV_CODEC_ID_ADPCM_EA_R2,
+    AV_CODEC_ID_ADPCM_IMA_EA_SEAD,
+    AV_CODEC_ID_ADPCM_IMA_EA_EACS,
+    AV_CODEC_ID_ADPCM_EA_XAS,
+    AV_CODEC_ID_ADPCM_EA_MAXIS_XA,
+    AV_CODEC_ID_ADPCM_IMA_ISS,
+    AV_CODEC_ID_ADPCM_G722,
+    AV_CODEC_ID_ADPCM_IMA_APC,
+    AV_CODEC_ID_ADPCM_VIMA,
+    AV_CODEC_ID_ADPCM_AFC,
+    AV_CODEC_ID_ADPCM_IMA_OKI,
+    AV_CODEC_ID_ADPCM_DTK,
+    AV_CODEC_ID_ADPCM_IMA_RAD,
+    AV_CODEC_ID_ADPCM_G726LE,
+    AV_CODEC_ID_ADPCM_THP_LE,
+    AV_CODEC_ID_ADPCM_PSX,
+    AV_CODEC_ID_ADPCM_AICA,
+    AV_CODEC_ID_ADPCM_IMA_DAT4,
+    AV_CODEC_ID_ADPCM_MTAF,
+    AV_CODEC_ID_ADPCM_AGM,
+    AV_CODEC_ID_ADPCM_ARGO,
+    AV_CODEC_ID_ADPCM_IMA_SSI,
+    AV_CODEC_ID_ADPCM_ZORK,
+    AV_CODEC_ID_ADPCM_IMA_APM,
+    AV_CODEC_ID_ADPCM_IMA_ALP,
+    AV_CODEC_ID_ADPCM_IMA_MTF,
+    AV_CODEC_ID_ADPCM_IMA_CUNNING,
+    AV_CODEC_ID_ADPCM_IMA_MOFLEX,
+    AV_CODEC_ID_ADPCM_IMA_ACORN,
+    AV_CODEC_ID_ADPCM_XMD,
+    AV_CODEC_ID_ADPCM_IMA_XBOX,
+
+    /* AMR */
+    AV_CODEC_ID_AMR_NB = 0x12000,
+    AV_CODEC_ID_AMR_WB,
+
+    /* RealAudio codecs*/
+    AV_CODEC_ID_RA_144 = 0x13000,
+    AV_CODEC_ID_RA_288,
+
+    /* various DPCM codecs */
+    AV_CODEC_ID_ROQ_DPCM = 0x14000,
+    AV_CODEC_ID_INTERPLAY_DPCM,
+    AV_CODEC_ID_XAN_DPCM,
+    AV_CODEC_ID_SOL_DPCM,
+    AV_CODEC_ID_SDX2_DPCM,
+    AV_CODEC_ID_GREMLIN_DPCM,
+    AV_CODEC_ID_DERF_DPCM,
+    AV_CODEC_ID_WADY_DPCM,
+    AV_CODEC_ID_CBD2_DPCM,
+
+    /* audio codecs */
+    AV_CODEC_ID_MP2 = 0x15000,
+    AV_CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3
+    AV_CODEC_ID_AAC,
+    AV_CODEC_ID_AC3,
+    AV_CODEC_ID_DTS,
+    AV_CODEC_ID_VORBIS,
+    AV_CODEC_ID_DVAUDIO,
+    AV_CODEC_ID_WMAV1,
+    AV_CODEC_ID_WMAV2,
+    AV_CODEC_ID_MACE3,
+    AV_CODEC_ID_MACE6,
+    AV_CODEC_ID_VMDAUDIO,
+    AV_CODEC_ID_FLAC,
+    AV_CODEC_ID_MP3ADU,
+    AV_CODEC_ID_MP3ON4,
+    AV_CODEC_ID_SHORTEN,
+    AV_CODEC_ID_ALAC,
+    AV_CODEC_ID_WESTWOOD_SND1,
+    AV_CODEC_ID_GSM, ///< as in Berlin toast format
+    AV_CODEC_ID_QDM2,
+    AV_CODEC_ID_COOK,
+    AV_CODEC_ID_TRUESPEECH,
+    AV_CODEC_ID_TTA,
+    AV_CODEC_ID_SMACKAUDIO,
+    AV_CODEC_ID_QCELP,
+    AV_CODEC_ID_WAVPACK,
+    AV_CODEC_ID_DSICINAUDIO,
+    AV_CODEC_ID_IMC,
+    AV_CODEC_ID_MUSEPACK7,
+    AV_CODEC_ID_MLP,
+    AV_CODEC_ID_GSM_MS, /* as found in WAV */
+    AV_CODEC_ID_ATRAC3,
+    AV_CODEC_ID_APE,
+    AV_CODEC_ID_NELLYMOSER,
+    AV_CODEC_ID_MUSEPACK8,
+    AV_CODEC_ID_SPEEX,
+    AV_CODEC_ID_WMAVOICE,
+    AV_CODEC_ID_WMAPRO,
+    AV_CODEC_ID_WMALOSSLESS,
+    AV_CODEC_ID_ATRAC3P,
+    AV_CODEC_ID_EAC3,
+    AV_CODEC_ID_SIPR,
+    AV_CODEC_ID_MP1,
+    AV_CODEC_ID_TWINVQ,
+    AV_CODEC_ID_TRUEHD,
+    AV_CODEC_ID_MP4ALS,
+    AV_CODEC_ID_ATRAC1,
+    AV_CODEC_ID_BINKAUDIO_RDFT,
+    AV_CODEC_ID_BINKAUDIO_DCT,
+    AV_CODEC_ID_AAC_LATM,
+    AV_CODEC_ID_QDMC,
+    AV_CODEC_ID_CELT,
+    AV_CODEC_ID_G723_1,
+    AV_CODEC_ID_G729,
+    AV_CODEC_ID_8SVX_EXP,
+    AV_CODEC_ID_8SVX_FIB,
+    AV_CODEC_ID_BMV_AUDIO,
+    AV_CODEC_ID_RALF,
+    AV_CODEC_ID_IAC,
+    AV_CODEC_ID_ILBC,
+    AV_CODEC_ID_OPUS,
+    AV_CODEC_ID_COMFORT_NOISE,
+    AV_CODEC_ID_TAK,
+    AV_CODEC_ID_METASOUND,
+    AV_CODEC_ID_PAF_AUDIO,
+    AV_CODEC_ID_ON2AVC,
+    AV_CODEC_ID_DSS_SP,
+    AV_CODEC_ID_CODEC2,
+    AV_CODEC_ID_FFWAVESYNTH,
+    AV_CODEC_ID_SONIC,
+    AV_CODEC_ID_SONIC_LS,
+    AV_CODEC_ID_EVRC,
+    AV_CODEC_ID_SMV,
+    AV_CODEC_ID_DSD_LSBF,
+    AV_CODEC_ID_DSD_MSBF,
+    AV_CODEC_ID_DSD_LSBF_PLANAR,
+    AV_CODEC_ID_DSD_MSBF_PLANAR,
+    AV_CODEC_ID_4GV,
+    AV_CODEC_ID_INTERPLAY_ACM,
+    AV_CODEC_ID_XMA1,
+    AV_CODEC_ID_XMA2,
+    AV_CODEC_ID_DST,
+    AV_CODEC_ID_ATRAC3AL,
+    AV_CODEC_ID_ATRAC3PAL,
+    AV_CODEC_ID_DOLBY_E,
+    AV_CODEC_ID_APTX,
+    AV_CODEC_ID_APTX_HD,
+    AV_CODEC_ID_SBC,
+    AV_CODEC_ID_ATRAC9,
+    AV_CODEC_ID_HCOM,
+    AV_CODEC_ID_ACELP_KELVIN,
+    AV_CODEC_ID_MPEGH_3D_AUDIO,
+    AV_CODEC_ID_SIREN,
+    AV_CODEC_ID_HCA,
+    AV_CODEC_ID_FASTAUDIO,
+    AV_CODEC_ID_MSNSIREN,
+    AV_CODEC_ID_DFPWM,
+    AV_CODEC_ID_BONK,
+    AV_CODEC_ID_MISC4,
+    AV_CODEC_ID_APAC,
+    AV_CODEC_ID_FTR,
+    AV_CODEC_ID_WAVARC,
+    AV_CODEC_ID_RKA,
+    AV_CODEC_ID_AC4,
+    AV_CODEC_ID_OSQ,
+    AV_CODEC_ID_QOA,
+    AV_CODEC_ID_LC3,
+
+    /* subtitle codecs */
+    AV_CODEC_ID_FIRST_SUBTITLE = 0x17000,          ///< A dummy ID pointing at the start of subtitle codecs.
+    AV_CODEC_ID_DVD_SUBTITLE = 0x17000,
+    AV_CODEC_ID_DVB_SUBTITLE,
+    AV_CODEC_ID_TEXT,  ///< raw UTF-8 text
+    AV_CODEC_ID_XSUB,
+    AV_CODEC_ID_SSA,
+    AV_CODEC_ID_MOV_TEXT,
+    AV_CODEC_ID_HDMV_PGS_SUBTITLE,
+    AV_CODEC_ID_DVB_TELETEXT,
+    AV_CODEC_ID_SRT,
+    AV_CODEC_ID_MICRODVD,
+    AV_CODEC_ID_EIA_608,
+    AV_CODEC_ID_JACOSUB,
+    AV_CODEC_ID_SAMI,
+    AV_CODEC_ID_REALTEXT,
+    AV_CODEC_ID_STL,
+    AV_CODEC_ID_SUBVIEWER1,
+    AV_CODEC_ID_SUBVIEWER,
+    AV_CODEC_ID_SUBRIP,
+    AV_CODEC_ID_WEBVTT,
+    AV_CODEC_ID_MPL2,
+    AV_CODEC_ID_VPLAYER,
+    AV_CODEC_ID_PJS,
+    AV_CODEC_ID_ASS,
+    AV_CODEC_ID_HDMV_TEXT_SUBTITLE,
+    AV_CODEC_ID_TTML,
+    AV_CODEC_ID_ARIB_CAPTION,
+
+    /* other specific kind of codecs (generally used for attachments) */
+    AV_CODEC_ID_FIRST_UNKNOWN = 0x18000,           ///< A dummy ID pointing at the start of various fake codecs.
+    AV_CODEC_ID_TTF = 0x18000,
+
+    AV_CODEC_ID_SCTE_35, ///< Contain timestamp estimated through PCR of program stream.
+    AV_CODEC_ID_EPG,
+    AV_CODEC_ID_BINTEXT,
+    AV_CODEC_ID_XBIN,
+    AV_CODEC_ID_IDF,
+    AV_CODEC_ID_OTF,
+    AV_CODEC_ID_SMPTE_KLV,
+    AV_CODEC_ID_DVD_NAV,
+    AV_CODEC_ID_TIMED_ID3,
+    AV_CODEC_ID_BIN_DATA,
+    AV_CODEC_ID_SMPTE_2038,
+    AV_CODEC_ID_LCEVC,
+
+
+    AV_CODEC_ID_PROBE = 0x19000, ///< codec_id is not known (like AV_CODEC_ID_NONE) but lavf should attempt to identify it
+
+    AV_CODEC_ID_MPEG2TS = 0x20000, /**< _FAKE_ codec to indicate a raw MPEG-2 TS
+                                * stream (only used by libavformat) */
+    AV_CODEC_ID_MPEG4SYSTEMS = 0x20001, /**< _FAKE_ codec to indicate a MPEG-4 Systems
+                                * stream (only used by libavformat) */
+    AV_CODEC_ID_FFMETADATA = 0x21000,   ///< Dummy codec for streams containing only metadata information.
+    AV_CODEC_ID_WRAPPED_AVFRAME = 0x21001, ///< Passthrough codec, AVFrames wrapped in AVPacket
+    /**
+     * Dummy null video codec, useful mainly for development and debugging.
+     * Null encoder/decoder discard all input and never return any output.
+     */
+    AV_CODEC_ID_VNULL,
+    /**
+     * Dummy null audio codec, useful mainly for development and debugging.
+     * Null encoder/decoder discard all input and never return any output.
+     */
+    AV_CODEC_ID_ANULL,
+};
+
+/**
+ * Get the type of the given codec.
+ */
+enum AVMediaType avcodec_get_type(enum AVCodecID codec_id);
+
+/**
+ * Get the name of a codec.
+ * @return  a static string identifying the codec; never NULL
+ */
+const char *avcodec_get_name(enum AVCodecID id);
+
+/**
+ * Return codec bits per sample.
+ *
+ * @param[in] codec_id the codec
+ * @return Number of bits per sample or zero if unknown for the given codec.
+ */
+int av_get_bits_per_sample(enum AVCodecID codec_id);
+
+/**
+ * Return codec bits per sample.
+ * Only return non-zero if the bits per sample is exactly correct, not an
+ * approximation.
+ *
+ * @param[in] codec_id the codec
+ * @return Number of bits per sample or zero if unknown for the given codec.
+ */
+int av_get_exact_bits_per_sample(enum AVCodecID codec_id);
+
+/**
+ * Return a name for the specified profile, if available.
+ *
+ * @param codec_id the ID of the codec to which the requested profile belongs
+ * @param profile the profile value for which a name is requested
+ * @return A name for the profile if found, NULL otherwise.
+ *
+ * @note unlike av_get_profile_name(), which searches a list of profiles
+ *       supported by a specific decoder or encoder implementation, this
+ *       function searches the list of profiles from the AVCodecDescriptor
+ */
+const char *avcodec_profile_name(enum AVCodecID codec_id, int profile);
+
+/**
+ * Return the PCM codec associated with a sample format.
+ * @param be  endianness, 0 for little, 1 for big,
+ *            -1 (or anything else) for native
+ * @return  AV_CODEC_ID_PCM_* or AV_CODEC_ID_NONE
+ */
+enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be);
+
+/**
+ * @}
+ */
+
+#endif // AVCODEC_CODEC_ID_H

ffmpeg/include/libavcodec/codec_par.h

@@ -0,0 +1,248 @@
+/*
+ * Codec parameters public API
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_CODEC_PAR_H
+#define AVCODEC_CODEC_PAR_H
+
+#include <stdint.h>
+
+#include "libavutil/avutil.h"
+#include "libavutil/channel_layout.h"
+#include "libavutil/rational.h"
+#include "libavutil/pixfmt.h"
+
+#include "codec_id.h"
+#include "defs.h"
+#include "packet.h"
+
+/**
+ * @addtogroup lavc_core
+ * @{
+ */
+
+/**
+ * This struct describes the properties of an encoded stream.
+ *
+ * sizeof(AVCodecParameters) is not a part of the public ABI, this struct must
+ * be allocated with avcodec_parameters_alloc() and freed with
+ * avcodec_parameters_free().
+ */
+typedef struct AVCodecParameters {
+    /**
+     * General type of the encoded data.
+     */
+    enum AVMediaType codec_type;
+    /**
+     * Specific type of the encoded data (the codec used).
+     */
+    enum AVCodecID   codec_id;
+    /**
+     * Additional information about the codec (corresponds to the AVI FOURCC).
+     */
+    uint32_t         codec_tag;
+
+    /**
+     * Extra binary data needed for initializing the decoder, codec-dependent.
+     *
+     * Must be allocated with av_malloc() and will be freed by
+     * avcodec_parameters_free(). The allocated size of extradata must be at
+     * least extradata_size + AV_INPUT_BUFFER_PADDING_SIZE, with the padding
+     * bytes zeroed.
+     */
+    uint8_t *extradata;
+    /**
+     * Size of the extradata content in bytes.
+     */
+    int      extradata_size;
+
+    /**
+     * Additional data associated with the entire stream.
+     *
+     * Should be allocated with av_packet_side_data_new() or
+     * av_packet_side_data_add(), and will be freed by avcodec_parameters_free().
+     */
+    AVPacketSideData *coded_side_data;
+
+    /**
+     * Amount of entries in @ref coded_side_data.
+     */
+    int nb_coded_side_data;
+
+    /**
+     * - video: the pixel format, the value corresponds to enum AVPixelFormat.
+     * - audio: the sample format, the value corresponds to enum AVSampleFormat.
+     */
+    int format;
+
+    /**
+     * The average bitrate of the encoded data (in bits per second).
+     */
+    int64_t bit_rate;
+
+    /**
+     * The number of bits per sample in the codedwords.
+     *
+     * This is basically the bitrate per sample. It is mandatory for a bunch of
+     * formats to actually decode them. It's the number of bits for one sample in
+     * the actual coded bitstream.
+     *
+     * This could be for example 4 for ADPCM
+     * For PCM formats this matches bits_per_raw_sample
+     * Can be 0
+     */
+    int bits_per_coded_sample;
+
+    /**
+     * This is the number of valid bits in each output sample. If the
+     * sample format has more bits, the least significant bits are additional
+     * padding bits, which are always 0. Use right shifts to reduce the sample
+     * to its actual size. For example, audio formats with 24 bit samples will
+     * have bits_per_raw_sample set to 24, and format set to AV_SAMPLE_FMT_S32.
+     * To get the original sample use "(int32_t)sample >> 8"."
+     *
+     * For ADPCM this might be 12 or 16 or similar
+     * Can be 0
+     */
+    int bits_per_raw_sample;
+
+    /**
+     * Codec-specific bitstream restrictions that the stream conforms to.
+     */
+    int profile;
+    int level;
+
+    /**
+     * Video only. The dimensions of the video frame in pixels.
+     */
+    int width;
+    int height;
+
+    /**
+     * Video only. The aspect ratio (width / height) which a single pixel
+     * should have when displayed.
+     *
+     * When the aspect ratio is unknown / undefined, the numerator should be
+     * set to 0 (the denominator may have any value).
+     */
+    AVRational sample_aspect_ratio;
+
+    /**
+     * Video only. Number of frames per second, for streams with constant frame
+     * durations. Should be set to { 0, 1 } when some frames have differing
+     * durations or if the value is not known.
+     *
+     * @note This field correponds to values that are stored in codec-level
+     * headers and is typically overridden by container/transport-layer
+     * timestamps, when available. It should thus be used only as a last resort,
+     * when no higher-level timing information is available.
+     */
+    AVRational framerate;
+
+    /**
+     * Video only. The order of the fields in interlaced video.
+     */
+    enum AVFieldOrder                  field_order;
+
+    /**
+     * Video only. Additional colorspace characteristics.
+     */
+    enum AVColorRange                  color_range;
+    enum AVColorPrimaries              color_primaries;
+    enum AVColorTransferCharacteristic color_trc;
+    enum AVColorSpace                  color_space;
+    enum AVChromaLocation              chroma_location;
+
+    /**
+     * Video only. Number of delayed frames.
+     */
+    int video_delay;
+
+    /**
+     * Audio only. The channel layout and number of channels.
+     */
+    AVChannelLayout ch_layout;
+    /**
+     * Audio only. The number of audio samples per second.
+     */
+    int      sample_rate;
+    /**
+     * Audio only. The number of bytes per coded audio frame, required by some
+     * formats.
+     *
+     * Corresponds to nBlockAlign in WAVEFORMATEX.
+     */
+    int      block_align;
+    /**
+     * Audio only. Audio frame size, if known. Required by some formats to be static.
+     */
+    int      frame_size;
+
+    /**
+     * Audio only. The amount of padding (in samples) inserted by the encoder at
+     * the beginning of the audio. I.e. this number of leading decoded samples
+     * must be discarded by the caller to get the original audio without leading
+     * padding.
+     */
+    int initial_padding;
+    /**
+     * Audio only. The amount of padding (in samples) appended by the encoder to
+     * the end of the audio. I.e. this number of decoded samples must be
+     * discarded by the caller from the end of the stream to get the original
+     * audio without any trailing padding.
+     */
+    int trailing_padding;
+    /**
+     * Audio only. Number of samples to skip after a discontinuity.
+     */
+    int seek_preroll;
+} AVCodecParameters;
+
+/**
+ * Allocate a new AVCodecParameters and set its fields to default values
+ * (unknown/invalid/0). The returned struct must be freed with
+ * avcodec_parameters_free().
+ */
+AVCodecParameters *avcodec_parameters_alloc(void);
+
+/**
+ * Free an AVCodecParameters instance and everything associated with it and
+ * write NULL to the supplied pointer.
+ */
+void avcodec_parameters_free(AVCodecParameters **par);
+
+/**
+ * Copy the contents of src to dst. Any allocated fields in dst are freed and
+ * replaced with newly allocated duplicates of the corresponding fields in src.
+ *
+ * @return >= 0 on success, a negative AVERROR code on failure.
+ */
+int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src);
+
+/**
+ * This function is the same as av_get_audio_frame_duration(), except it works
+ * with AVCodecParameters instead of an AVCodecContext.
+ */
+int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes);
+
+/**
+ * @}
+ */
+
+#endif // AVCODEC_CODEC_PAR_H

ffmpeg/include/libavcodec/d3d11va.h

@@ -0,0 +1,109 @@
+/*
+ * Direct3D11 HW acceleration
+ *
+ * copyright (c) 2009 Laurent Aimar
+ * copyright (c) 2015 Steve Lhomme
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_D3D11VA_H
+#define AVCODEC_D3D11VA_H
+
+/**
+ * @file
+ * @ingroup lavc_codec_hwaccel_d3d11va
+ * Public libavcodec D3D11VA header.
+ */
+
+#if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0602
+#undef _WIN32_WINNT
+#define _WIN32_WINNT 0x0602
+#endif
+
+#include <stdint.h>
+#include <d3d11.h>
+
+/**
+ * @defgroup lavc_codec_hwaccel_d3d11va Direct3D11
+ * @ingroup lavc_codec_hwaccel
+ *
+ * @{
+ */
+
+/**
+ * This structure is used to provides the necessary configurations and data
+ * to the Direct3D11 FFmpeg HWAccel implementation.
+ *
+ * The application must make it available as AVCodecContext.hwaccel_context.
+ *
+ * Use av_d3d11va_alloc_context() exclusively to allocate an AVD3D11VAContext.
+ */
+typedef struct AVD3D11VAContext {
+    /**
+     * D3D11 decoder object
+     */
+    ID3D11VideoDecoder *decoder;
+
+    /**
+      * D3D11 VideoContext
+      */
+    ID3D11VideoContext *video_context;
+
+    /**
+     * D3D11 configuration used to create the decoder
+     */
+    D3D11_VIDEO_DECODER_CONFIG *cfg;
+
+    /**
+     * The number of surface in the surface array
+     */
+    unsigned surface_count;
+
+    /**
+     * The array of Direct3D surfaces used to create the decoder
+     */
+    ID3D11VideoDecoderOutputView **surface;
+
+    /**
+     * A bit field configuring the workarounds needed for using the decoder
+     */
+    uint64_t workaround;
+
+    /**
+     * Private to the FFmpeg AVHWAccel implementation
+     */
+    unsigned report_id;
+
+    /**
+      * Mutex to access video_context
+      */
+    HANDLE  context_mutex;
+} AVD3D11VAContext;
+
+/**
+ * Allocate an AVD3D11VAContext.
+ *
+ * @return Newly-allocated AVD3D11VAContext or NULL on failure.
+ */
+AVD3D11VAContext *av_d3d11va_alloc_context(void);
+
+/**
+ * @}
+ */
+
+#endif /* AVCODEC_D3D11VA_H */

ffmpeg/include/libavcodec/defs.h

@@ -0,0 +1,337 @@
+/*
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_DEFS_H
+#define AVCODEC_DEFS_H
+
+/**
+ * @file
+ * @ingroup libavc
+ * Misc types and constants that do not belong anywhere else.
+ */
+
+#include <stdint.h>
+#include <stdlib.h>
+
+/**
+ * @ingroup lavc_decoding
+ * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
+ * This is mainly needed because some optimized bitstream readers read
+ * 32 or 64 bit at once and could read over the end.<br>
+ * Note: If the first 23 bits of the additional bytes are not 0, then damaged
+ * MPEG bitstreams could cause overread and segfault.
+ */
+#define AV_INPUT_BUFFER_PADDING_SIZE 64
+
+/**
+ * Verify checksums embedded in the bitstream (could be of either encoded or
+ * decoded data, depending on the format) and print an error message on mismatch.
+ * If AV_EF_EXPLODE is also set, a mismatching checksum will result in the
+ * decoder/demuxer returning an error.
+ */
+#define AV_EF_CRCCHECK       (1<<0)
+#define AV_EF_BITSTREAM      (1<<1)   ///< detect bitstream specification deviations
+#define AV_EF_BUFFER         (1<<2)   ///< detect improper bitstream length
+#define AV_EF_EXPLODE        (1<<3)   ///< abort decoding on minor error detection
+
+#define AV_EF_IGNORE_ERR     (1<<15)  ///< ignore errors and continue
+#define AV_EF_CAREFUL        (1<<16)  ///< consider things that violate the spec, are fast to calculate and have not been seen in the wild as errors
+#define AV_EF_COMPLIANT      (1<<17)  ///< consider all spec non compliances as errors
+#define AV_EF_AGGRESSIVE     (1<<18)  ///< consider things that a sane encoder/muxer should not do as an error
+
+#define FF_COMPLIANCE_VERY_STRICT   2 ///< Strictly conform to an older more strict version of the spec or reference software.
+#define FF_COMPLIANCE_STRICT        1 ///< Strictly conform to all the things in the spec no matter what consequences.
+#define FF_COMPLIANCE_NORMAL        0
+#define FF_COMPLIANCE_UNOFFICIAL   -1 ///< Allow unofficial extensions
+#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< Allow nonstandardized experimental things.
+
+
+#define AV_PROFILE_UNKNOWN        -99
+#define AV_PROFILE_RESERVED      -100
+
+#define AV_PROFILE_AAC_MAIN         0
+#define AV_PROFILE_AAC_LOW          1
+#define AV_PROFILE_AAC_SSR          2
+#define AV_PROFILE_AAC_LTP          3
+#define AV_PROFILE_AAC_HE           4
+#define AV_PROFILE_AAC_HE_V2       28
+#define AV_PROFILE_AAC_LD          22
+#define AV_PROFILE_AAC_ELD         38
+#define AV_PROFILE_AAC_USAC        41
+#define AV_PROFILE_MPEG2_AAC_LOW  128
+#define AV_PROFILE_MPEG2_AAC_HE   131
+
+#define AV_PROFILE_DNXHD         0
+#define AV_PROFILE_DNXHR_LB      1
+#define AV_PROFILE_DNXHR_SQ      2
+#define AV_PROFILE_DNXHR_HQ      3
+#define AV_PROFILE_DNXHR_HQX     4
+#define AV_PROFILE_DNXHR_444     5
+
+#define AV_PROFILE_DTS                20
+#define AV_PROFILE_DTS_ES             30
+#define AV_PROFILE_DTS_96_24          40
+#define AV_PROFILE_DTS_HD_HRA         50
+#define AV_PROFILE_DTS_HD_MA          60
+#define AV_PROFILE_DTS_EXPRESS        70
+#define AV_PROFILE_DTS_HD_MA_X        61
+#define AV_PROFILE_DTS_HD_MA_X_IMAX   62
+
+#define AV_PROFILE_EAC3_DDP_ATMOS         30
+
+#define AV_PROFILE_TRUEHD_ATMOS           30
+
+#define AV_PROFILE_MPEG2_422           0
+#define AV_PROFILE_MPEG2_HIGH          1
+#define AV_PROFILE_MPEG2_SS            2
+#define AV_PROFILE_MPEG2_SNR_SCALABLE  3
+#define AV_PROFILE_MPEG2_MAIN          4
+#define AV_PROFILE_MPEG2_SIMPLE        5
+
+#define AV_PROFILE_H264_CONSTRAINED  (1<<9)  // 8+1; constraint_set1_flag
+#define AV_PROFILE_H264_INTRA        (1<<11) // 8+3; constraint_set3_flag
+
+#define AV_PROFILE_H264_BASELINE             66
+#define AV_PROFILE_H264_CONSTRAINED_BASELINE (66|AV_PROFILE_H264_CONSTRAINED)
+#define AV_PROFILE_H264_MAIN                 77
+#define AV_PROFILE_H264_EXTENDED             88
+#define AV_PROFILE_H264_HIGH                 100
+#define AV_PROFILE_H264_HIGH_10              110
+#define AV_PROFILE_H264_HIGH_10_INTRA        (110|AV_PROFILE_H264_INTRA)
+#define AV_PROFILE_H264_MULTIVIEW_HIGH       118
+#define AV_PROFILE_H264_HIGH_422             122
+#define AV_PROFILE_H264_HIGH_422_INTRA       (122|AV_PROFILE_H264_INTRA)
+#define AV_PROFILE_H264_STEREO_HIGH          128
+#define AV_PROFILE_H264_HIGH_444             144
+#define AV_PROFILE_H264_HIGH_444_PREDICTIVE  244
+#define AV_PROFILE_H264_HIGH_444_INTRA       (244|AV_PROFILE_H264_INTRA)
+#define AV_PROFILE_H264_CAVLC_444            44
+
+#define AV_PROFILE_VC1_SIMPLE   0
+#define AV_PROFILE_VC1_MAIN     1
+#define AV_PROFILE_VC1_COMPLEX  2
+#define AV_PROFILE_VC1_ADVANCED 3
+
+#define AV_PROFILE_MPEG4_SIMPLE                     0
+#define AV_PROFILE_MPEG4_SIMPLE_SCALABLE            1
+#define AV_PROFILE_MPEG4_CORE                       2
+#define AV_PROFILE_MPEG4_MAIN                       3
+#define AV_PROFILE_MPEG4_N_BIT                      4
+#define AV_PROFILE_MPEG4_SCALABLE_TEXTURE           5
+#define AV_PROFILE_MPEG4_SIMPLE_FACE_ANIMATION      6
+#define AV_PROFILE_MPEG4_BASIC_ANIMATED_TEXTURE     7
+#define AV_PROFILE_MPEG4_HYBRID                     8
+#define AV_PROFILE_MPEG4_ADVANCED_REAL_TIME         9
+#define AV_PROFILE_MPEG4_CORE_SCALABLE             10
+#define AV_PROFILE_MPEG4_ADVANCED_CODING           11
+#define AV_PROFILE_MPEG4_ADVANCED_CORE             12
+#define AV_PROFILE_MPEG4_ADVANCED_SCALABLE_TEXTURE 13
+#define AV_PROFILE_MPEG4_SIMPLE_STUDIO             14
+#define AV_PROFILE_MPEG4_ADVANCED_SIMPLE           15
+
+#define AV_PROFILE_JPEG2000_CSTREAM_RESTRICTION_0   1
+#define AV_PROFILE_JPEG2000_CSTREAM_RESTRICTION_1   2
+#define AV_PROFILE_JPEG2000_CSTREAM_NO_RESTRICTION  32768
+#define AV_PROFILE_JPEG2000_DCINEMA_2K              3
+#define AV_PROFILE_JPEG2000_DCINEMA_4K              4
+
+#define AV_PROFILE_VP9_0                            0
+#define AV_PROFILE_VP9_1                            1
+#define AV_PROFILE_VP9_2                            2
+#define AV_PROFILE_VP9_3                            3
+
+#define AV_PROFILE_HEVC_MAIN                        1
+#define AV_PROFILE_HEVC_MAIN_10                     2
+#define AV_PROFILE_HEVC_MAIN_STILL_PICTURE          3
+#define AV_PROFILE_HEVC_REXT                        4
+#define AV_PROFILE_HEVC_MULTIVIEW_MAIN              6
+#define AV_PROFILE_HEVC_SCC                         9
+
+#define AV_PROFILE_VVC_MAIN_10                      1
+#define AV_PROFILE_VVC_MAIN_10_444                 33
+
+#define AV_PROFILE_AV1_MAIN                         0
+#define AV_PROFILE_AV1_HIGH                         1
+#define AV_PROFILE_AV1_PROFESSIONAL                 2
+
+#define AV_PROFILE_MJPEG_HUFFMAN_BASELINE_DCT            0xc0
+#define AV_PROFILE_MJPEG_HUFFMAN_EXTENDED_SEQUENTIAL_DCT 0xc1
+#define AV_PROFILE_MJPEG_HUFFMAN_PROGRESSIVE_DCT         0xc2
+#define AV_PROFILE_MJPEG_HUFFMAN_LOSSLESS                0xc3
+#define AV_PROFILE_MJPEG_JPEG_LS                         0xf7
+
+#define AV_PROFILE_SBC_MSBC                         1
+
+#define AV_PROFILE_PRORES_PROXY     0
+#define AV_PROFILE_PRORES_LT        1
+#define AV_PROFILE_PRORES_STANDARD  2
+#define AV_PROFILE_PRORES_HQ        3
+#define AV_PROFILE_PRORES_4444      4
+#define AV_PROFILE_PRORES_XQ        5
+
+#define AV_PROFILE_ARIB_PROFILE_A 0
+#define AV_PROFILE_ARIB_PROFILE_C 1
+
+#define AV_PROFILE_KLVA_SYNC  0
+#define AV_PROFILE_KLVA_ASYNC 1
+
+#define AV_PROFILE_EVC_BASELINE             0
+#define AV_PROFILE_EVC_MAIN                 1
+
+
+#define AV_LEVEL_UNKNOWN                  -99
+
+enum AVFieldOrder {
+    AV_FIELD_UNKNOWN,
+    AV_FIELD_PROGRESSIVE,
+    AV_FIELD_TT,          ///< Top coded_first, top displayed first
+    AV_FIELD_BB,          ///< Bottom coded first, bottom displayed first
+    AV_FIELD_TB,          ///< Top coded first, bottom displayed first
+    AV_FIELD_BT,          ///< Bottom coded first, top displayed first
+};
+
+/**
+ * @ingroup lavc_decoding
+ */
+enum AVDiscard{
+    /* We leave some space between them for extensions (drop some
+     * keyframes for intra-only or drop just some bidir frames). */
+    AVDISCARD_NONE    =-16, ///< discard nothing
+    AVDISCARD_DEFAULT =  0, ///< discard useless packets like 0 size packets in avi
+    AVDISCARD_NONREF  =  8, ///< discard all non reference
+    AVDISCARD_BIDIR   = 16, ///< discard all bidirectional frames
+    AVDISCARD_NONINTRA= 24, ///< discard all non intra frames
+    AVDISCARD_NONKEY  = 32, ///< discard all frames except keyframes
+    AVDISCARD_ALL     = 48, ///< discard all
+};
+
+enum AVAudioServiceType {
+    AV_AUDIO_SERVICE_TYPE_MAIN              = 0,
+    AV_AUDIO_SERVICE_TYPE_EFFECTS           = 1,
+    AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED = 2,
+    AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED  = 3,
+    AV_AUDIO_SERVICE_TYPE_DIALOGUE          = 4,
+    AV_AUDIO_SERVICE_TYPE_COMMENTARY        = 5,
+    AV_AUDIO_SERVICE_TYPE_EMERGENCY         = 6,
+    AV_AUDIO_SERVICE_TYPE_VOICE_OVER        = 7,
+    AV_AUDIO_SERVICE_TYPE_KARAOKE           = 8,
+    AV_AUDIO_SERVICE_TYPE_NB                   , ///< Not part of ABI
+};
+
+/**
+ * Pan Scan area.
+ * This specifies the area which should be displayed.
+ * Note there may be multiple such areas for one frame.
+ */
+typedef struct AVPanScan {
+    /**
+     * id
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     */
+    int id;
+
+    /**
+     * width and height in 1/16 pel
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     */
+    int width;
+    int height;
+
+    /**
+     * position of the top left corner in 1/16 pel for up to 3 fields/frames
+     * - encoding: Set by user.
+     * - decoding: Set by libavcodec.
+     */
+    int16_t position[3][2];
+} AVPanScan;
+
+/**
+ * This structure describes the bitrate properties of an encoded bitstream. It
+ * roughly corresponds to a subset the VBV parameters for MPEG-2 or HRD
+ * parameters for H.264/HEVC.
+ */
+typedef struct AVCPBProperties {
+    /**
+     * Maximum bitrate of the stream, in bits per second.
+     * Zero if unknown or unspecified.
+     */
+    int64_t max_bitrate;
+    /**
+     * Minimum bitrate of the stream, in bits per second.
+     * Zero if unknown or unspecified.
+     */
+    int64_t min_bitrate;
+    /**
+     * Average bitrate of the stream, in bits per second.
+     * Zero if unknown or unspecified.
+     */
+    int64_t avg_bitrate;
+
+    /**
+     * The size of the buffer to which the ratecontrol is applied, in bits.
+     * Zero if unknown or unspecified.
+     */
+    int64_t buffer_size;
+
+    /**
+     * The delay between the time the packet this structure is associated with
+     * is received and the time when it should be decoded, in periods of a 27MHz
+     * clock.
+     *
+     * UINT64_MAX when unknown or unspecified.
+     */
+    uint64_t vbv_delay;
+} AVCPBProperties;
+
+/**
+ * Allocate a CPB properties structure and initialize its fields to default
+ * values.
+ *
+ * @param size if non-NULL, the size of the allocated struct will be written
+ *             here. This is useful for embedding it in side data.
+ *
+ * @return the newly allocated struct or NULL on failure
+ */
+AVCPBProperties *av_cpb_properties_alloc(size_t *size);
+
+/**
+ * This structure supplies correlation between a packet timestamp and a wall clock
+ * production time. The definition follows the Producer Reference Time ('prft')
+ * as defined in ISO/IEC 14496-12
+ */
+typedef struct AVProducerReferenceTime {
+    /**
+     * A UTC timestamp, in microseconds, since Unix epoch (e.g, av_gettime()).
+     */
+    int64_t wallclock;
+    int flags;
+} AVProducerReferenceTime;
+
+/**
+ * Encode extradata length to a buffer. Used by xiph codecs.
+ *
+ * @param s buffer to write to; must be at least (v/255+1) bytes long
+ * @param v size of extradata in bytes
+ * @return number of bytes written to the buffer.
+ */
+unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
+
+#endif // AVCODEC_DEFS_H

ffmpeg/include/libavcodec/dirac.h

@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 2007 Marco Gerards <marco@gnu.org>
+ * Copyright (C) 2009 David Conrad
+ * Copyright (C) 2011 Jordi Ortiz
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_DIRAC_H
+#define AVCODEC_DIRAC_H
+
+/**
+ * @file
+ * Interface to Dirac Decoder/Encoder
+ * @author Marco Gerards <marco@gnu.org>
+ * @author David Conrad
+ * @author Jordi Ortiz
+ */
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "libavutil/pixfmt.h"
+#include "libavutil/rational.h"
+
+/**
+ * The spec limits the number of wavelet decompositions to 4 for both
+ * level 1 (VC-2) and 128 (long-gop default).
+ * 5 decompositions is the maximum before >16-bit buffers are needed.
+ * Schroedinger allows this for DD 9,7 and 13,7 wavelets only, limiting
+ * the others to 4 decompositions (or 3 for the fidelity filter).
+ *
+ * We use this instead of MAX_DECOMPOSITIONS to save some memory.
+ */
+#define MAX_DWT_LEVELS 5
+
+/**
+ * Parse code values:
+ *
+ * Dirac Specification ->
+ * 9.6.1  Table 9.1
+ *
+ * VC-2 Specification  ->
+ * 10.4.1 Table 10.1
+ */
+
+enum DiracParseCodes {
+    DIRAC_PCODE_SEQ_HEADER      = 0x00,
+    DIRAC_PCODE_END_SEQ         = 0x10,
+    DIRAC_PCODE_AUX             = 0x20,
+    DIRAC_PCODE_PAD             = 0x30,
+    DIRAC_PCODE_PICTURE_CODED   = 0x08,
+    DIRAC_PCODE_PICTURE_RAW     = 0x48,
+    DIRAC_PCODE_PICTURE_LOW_DEL = 0xC8,
+    DIRAC_PCODE_PICTURE_HQ      = 0xE8,
+    DIRAC_PCODE_INTER_NOREF_CO1 = 0x0A,
+    DIRAC_PCODE_INTER_NOREF_CO2 = 0x09,
+    DIRAC_PCODE_INTER_REF_CO1   = 0x0D,
+    DIRAC_PCODE_INTER_REF_CO2   = 0x0E,
+    DIRAC_PCODE_INTRA_REF_CO    = 0x0C,
+    DIRAC_PCODE_INTRA_REF_RAW   = 0x4C,
+    DIRAC_PCODE_INTRA_REF_PICT  = 0xCC,
+    DIRAC_PCODE_MAGIC           = 0x42424344,
+};
+
+typedef struct DiracVersionInfo {
+    int major;
+    int minor;
+} DiracVersionInfo;
+
+typedef struct AVDiracSeqHeader {
+    unsigned width;
+    unsigned height;
+    uint8_t chroma_format;          ///< 0: 444  1: 422  2: 420
+
+    uint8_t interlaced;
+    uint8_t top_field_first;
+
+    uint8_t frame_rate_index;       ///< index into dirac_frame_rate[]
+    uint8_t aspect_ratio_index;     ///< index into dirac_aspect_ratio[]
+
+    uint16_t clean_width;
+    uint16_t clean_height;
+    uint16_t clean_left_offset;
+    uint16_t clean_right_offset;
+
+    uint8_t pixel_range_index;      ///< index into dirac_pixel_range_presets[]
+    uint8_t color_spec_index;       ///< index into dirac_color_spec_presets[]
+
+    int profile;
+    int level;
+
+    AVRational framerate;
+    AVRational sample_aspect_ratio;
+
+    enum AVPixelFormat pix_fmt;
+    enum AVColorRange color_range;
+    enum AVColorPrimaries color_primaries;
+    enum AVColorTransferCharacteristic color_trc;
+    enum AVColorSpace colorspace;
+
+    DiracVersionInfo version;
+    int bit_depth;
+} AVDiracSeqHeader;
+
+/**
+ * Parse a Dirac sequence header.
+ *
+ * @param dsh this function will allocate and fill an AVDiracSeqHeader struct
+ *            and write it into this pointer. The caller must free it with
+ *            av_free().
+ * @param buf the data buffer
+ * @param buf_size the size of the data buffer in bytes
+ * @param log_ctx if non-NULL, this function will log errors here
+ * @return 0 on success, a negative AVERROR code on failure
+ */
+int av_dirac_parse_sequence_header(AVDiracSeqHeader **dsh,
+                                   const uint8_t *buf, size_t buf_size,
+                                   void *log_ctx);
+
+#endif /* AVCODEC_DIRAC_H */

ffmpeg/include/libavcodec/dv_profile.h

@@ -0,0 +1,82 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_DV_PROFILE_H
+#define AVCODEC_DV_PROFILE_H
+
+#include <stdint.h>
+
+#include "libavutil/pixfmt.h"
+#include "libavutil/rational.h"
+
+/* minimum number of bytes to read from a DV stream in order to
+ * determine the profile */
+#define DV_PROFILE_BYTES (6 * 80) /* 6 DIF blocks */
+
+
+/*
+ * AVDVProfile is used to express the differences between various
+ * DV flavors. For now it's primarily used for differentiating
+ * 525/60 and 625/50, but the plans are to use it for various
+ * DV specs as well (e.g. SMPTE314M vs. IEC 61834).
+ */
+typedef struct AVDVProfile {
+    int              dsf;                   /* value of the dsf in the DV header */
+    int              video_stype;           /* stype for VAUX source pack */
+    int              frame_size;            /* total size of one frame in bytes */
+    int              difseg_size;           /* number of DIF segments per DIF channel */
+    int              n_difchan;             /* number of DIF channels per frame */
+    AVRational       time_base;             /* 1/framerate */
+    int              ltc_divisor;           /* FPS from the LTS standpoint */
+    int              height;                /* picture height in pixels */
+    int              width;                 /* picture width in pixels */
+    AVRational       sar[2];                /* sample aspect ratios for 4:3 and 16:9 */
+    enum AVPixelFormat pix_fmt;             /* picture pixel format */
+    int              bpm;                   /* blocks per macroblock */
+    const uint8_t   *block_sizes;           /* AC block sizes, in bits */
+    int              audio_stride;          /* size of audio_shuffle table */
+    int              audio_min_samples[3];  /* min amount of audio samples */
+                                            /* for 48kHz, 44.1kHz and 32kHz */
+    int              audio_samples_dist[5]; /* how many samples are supposed to be */
+                                            /* in each frame in a 5 frames window */
+    const uint8_t  (*audio_shuffle)[9];     /* PCM shuffling table */
+} AVDVProfile;
+
+/**
+ * Get a DV profile for the provided compressed frame.
+ *
+ * @param sys the profile used for the previous frame, may be NULL
+ * @param frame the compressed data buffer
+ * @param buf_size size of the buffer in bytes
+ * @return the DV profile for the supplied data or NULL on failure
+ */
+const AVDVProfile *av_dv_frame_profile(const AVDVProfile *sys,
+                                       const uint8_t *frame, unsigned buf_size);
+
+/**
+ * Get a DV profile for the provided stream parameters.
+ */
+const AVDVProfile *av_dv_codec_profile(int width, int height, enum AVPixelFormat pix_fmt);
+
+/**
+ * Get a DV profile for the provided stream parameters.
+ * The frame rate is used as a best-effort parameter.
+ */
+const AVDVProfile *av_dv_codec_profile2(int width, int height, enum AVPixelFormat pix_fmt, AVRational frame_rate);
+
+#endif /* AVCODEC_DV_PROFILE_H */

ffmpeg/include/libavcodec/dxva2.h

@@ -0,0 +1,90 @@
+/*
+ * DXVA2 HW acceleration
+ *
+ * copyright (c) 2009 Laurent Aimar
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_DXVA2_H
+#define AVCODEC_DXVA2_H
+
+/**
+ * @file
+ * @ingroup lavc_codec_hwaccel_dxva2
+ * Public libavcodec DXVA2 header.
+ */
+
+#if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0602
+#undef _WIN32_WINNT
+#define _WIN32_WINNT 0x0602
+#endif
+
+#include <stdint.h>
+#include <d3d9.h>
+#include <dxva2api.h>
+
+/**
+ * @defgroup lavc_codec_hwaccel_dxva2 DXVA2
+ * @ingroup lavc_codec_hwaccel
+ *
+ * @{
+ */
+
+/**
+ * This structure is used to provides the necessary configurations and data
+ * to the DXVA2 FFmpeg HWAccel implementation.
+ *
+ * The application must make it available as AVCodecContext.hwaccel_context.
+ */
+struct dxva_context {
+    /**
+     * DXVA2 decoder object
+     */
+    IDirectXVideoDecoder *decoder;
+
+    /**
+     * DXVA2 configuration used to create the decoder
+     */
+    const DXVA2_ConfigPictureDecode *cfg;
+
+    /**
+     * The number of surface in the surface array
+     */
+    unsigned surface_count;
+
+    /**
+     * The array of Direct3D surfaces used to create the decoder
+     */
+    LPDIRECT3DSURFACE9 *surface;
+
+    /**
+     * A bit field configuring the workarounds needed for using the decoder
+     */
+    uint64_t workaround;
+
+    /**
+     * Private to the FFmpeg AVHWAccel implementation
+     */
+    unsigned report_id;
+};
+
+/**
+ * @}
+ */
+
+#endif /* AVCODEC_DXVA2_H */

ffmpeg/include/libavcodec/jni.h

@@ -0,0 +1,67 @@
+/*
+ * JNI public API functions
+ *
+ * Copyright (c) 2015-2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_JNI_H
+#define AVCODEC_JNI_H
+
+/*
+ * Manually set a Java virtual machine which will be used to retrieve the JNI
+ * environment. Once a Java VM is set it cannot be changed afterwards, meaning
+ * you can call multiple times av_jni_set_java_vm with the same Java VM pointer
+ * however it will error out if you try to set a different Java VM.
+ *
+ * @param vm Java virtual machine
+ * @param log_ctx context used for logging, can be NULL
+ * @return 0 on success, < 0 otherwise
+ */
+int av_jni_set_java_vm(void *vm, void *log_ctx);
+
+/*
+ * Get the Java virtual machine which has been set with av_jni_set_java_vm.
+ *
+ * @param vm Java virtual machine
+ * @return a pointer to the Java virtual machine
+ */
+void *av_jni_get_java_vm(void *log_ctx);
+
+/*
+ * Set the Android application context which will be used to retrieve the Android
+ * content resolver to handle content uris.
+ *
+ * This function is only available on Android.
+ *
+ * @param app_ctx global JNI reference to the Android application context
+ * @return 0 on success, < 0 otherwise
+ */
+int av_jni_set_android_app_ctx(void *app_ctx, void *log_ctx);
+
+/*
+ * Get the Android application context that has been set with
+ * av_jni_set_android_app_ctx.
+ *
+ * This function is only available on Android.
+ *
+ * @return a pointer the the Android application context
+ */
+void *av_jni_get_android_app_ctx(void);
+
+#endif /* AVCODEC_JNI_H */

ffmpeg/include/libavcodec/mediacodec.h

@@ -0,0 +1,103 @@
+/*
+ * Android MediaCodec public API
+ *
+ * Copyright (c) 2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MEDIACODEC_H
+#define AVCODEC_MEDIACODEC_H
+
+#include "libavcodec/avcodec.h"
+
+/**
+ * This structure holds a reference to a android/view/Surface object that will
+ * be used as output by the decoder.
+ *
+ */
+typedef struct AVMediaCodecContext {
+
+    /**
+     * android/view/Surface object reference.
+     */
+    void *surface;
+
+} AVMediaCodecContext;
+
+/**
+ * Allocate and initialize a MediaCodec context.
+ *
+ * When decoding with MediaCodec is finished, the caller must free the
+ * MediaCodec context with av_mediacodec_default_free.
+ *
+ * @return a pointer to a newly allocated AVMediaCodecContext on success, NULL otherwise
+ */
+AVMediaCodecContext *av_mediacodec_alloc_context(void);
+
+/**
+ * Convenience function that sets up the MediaCodec context.
+ *
+ * @param avctx codec context
+ * @param ctx MediaCodec context to initialize
+ * @param surface reference to an android/view/Surface
+ * @return 0 on success, < 0 otherwise
+ */
+int av_mediacodec_default_init(AVCodecContext *avctx, AVMediaCodecContext *ctx, void *surface);
+
+/**
+ * This function must be called to free the MediaCodec context initialized with
+ * av_mediacodec_default_init().
+ *
+ * @param avctx codec context
+ */
+void av_mediacodec_default_free(AVCodecContext *avctx);
+
+/**
+ * Opaque structure representing a MediaCodec buffer to render.
+ */
+typedef struct MediaCodecBuffer AVMediaCodecBuffer;
+
+/**
+ * Release a MediaCodec buffer and render it to the surface that is associated
+ * with the decoder. This function should only be called once on a given
+ * buffer, once released the underlying buffer returns to the codec, thus
+ * subsequent calls to this function will have no effect.
+ *
+ * @param buffer the buffer to render
+ * @param render 1 to release and render the buffer to the surface or 0 to
+ * discard the buffer
+ * @return 0 on success, < 0 otherwise
+ */
+int av_mediacodec_release_buffer(AVMediaCodecBuffer *buffer, int render);
+
+/**
+ * Release a MediaCodec buffer and render it at the given time to the surface
+ * that is associated with the decoder. The timestamp must be within one second
+ * of the current `java/lang/System#nanoTime()` (which is implemented using
+ * `CLOCK_MONOTONIC` on Android). See the Android MediaCodec documentation
+ * of [`android/media/MediaCodec#releaseOutputBuffer(int,long)`][0] for more details.
+ *
+ * @param buffer the buffer to render
+ * @param time timestamp in nanoseconds of when to render the buffer
+ * @return 0 on success, < 0 otherwise
+ *
+ * [0]: https://developer.android.com/reference/android/media/MediaCodec#releaseOutputBuffer(int,%20long)
+ */
+int av_mediacodec_render_buffer_at_time(AVMediaCodecBuffer *buffer, int64_t time);
+
+#endif /* AVCODEC_MEDIACODEC_H */

ffmpeg/include/libavcodec/packet.h

@@ -0,0 +1,894 @@
+/*
+ * AVPacket public API
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_PACKET_H
+#define AVCODEC_PACKET_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/buffer.h"
+#include "libavutil/dict.h"
+#include "libavutil/rational.h"
+#include "libavutil/version.h"
+
+#include "libavcodec/version_major.h"
+
+/**
+ * @defgroup lavc_packet_side_data AVPacketSideData
+ *
+ * Types and functions for working with AVPacketSideData.
+ * @{
+ */
+enum AVPacketSideDataType {
+    /**
+     * An AV_PKT_DATA_PALETTE side data packet contains exactly AVPALETTE_SIZE
+     * bytes worth of palette. This side data signals that a new palette is
+     * present.
+     */
+    AV_PKT_DATA_PALETTE,
+
+    /**
+     * The AV_PKT_DATA_NEW_EXTRADATA is used to notify the codec or the format
+     * that the extradata buffer was changed and the receiving side should
+     * act upon it appropriately. The new extradata is embedded in the side
+     * data buffer and should be immediately used for processing the current
+     * frame or packet.
+     */
+    AV_PKT_DATA_NEW_EXTRADATA,
+
+    /**
+     * An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows:
+     * @code
+     * u32le param_flags
+     * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE)
+     *     s32le sample_rate
+     * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS)
+     *     s32le width
+     *     s32le height
+     * @endcode
+     */
+    AV_PKT_DATA_PARAM_CHANGE,
+
+    /**
+     * An AV_PKT_DATA_H263_MB_INFO side data packet contains a number of
+     * structures with info about macroblocks relevant to splitting the
+     * packet into smaller packets on macroblock edges (e.g. as for RFC 2190).
+     * That is, it does not necessarily contain info about all macroblocks,
+     * as long as the distance between macroblocks in the info is smaller
+     * than the target payload size.
+     * Each MB info structure is 12 bytes, and is laid out as follows:
+     * @code
+     * u32le bit offset from the start of the packet
+     * u8    current quantizer at the start of the macroblock
+     * u8    GOB number
+     * u16le macroblock address within the GOB
+     * u8    horizontal MV predictor
+     * u8    vertical MV predictor
+     * u8    horizontal MV predictor for block number 3
+     * u8    vertical MV predictor for block number 3
+     * @endcode
+     */
+    AV_PKT_DATA_H263_MB_INFO,
+
+    /**
+     * This side data should be associated with an audio stream and contains
+     * ReplayGain information in form of the AVReplayGain struct.
+     */
+    AV_PKT_DATA_REPLAYGAIN,
+
+    /**
+     * This side data contains a 3x3 transformation matrix describing an affine
+     * transformation that needs to be applied to the decoded video frames for
+     * correct presentation.
+     *
+     * See libavutil/display.h for a detailed description of the data.
+     */
+    AV_PKT_DATA_DISPLAYMATRIX,
+
+    /**
+     * This side data should be associated with a video stream and contains
+     * Stereoscopic 3D information in form of the AVStereo3D struct.
+     */
+    AV_PKT_DATA_STEREO3D,
+
+    /**
+     * This side data should be associated with an audio stream and corresponds
+     * to enum AVAudioServiceType.
+     */
+    AV_PKT_DATA_AUDIO_SERVICE_TYPE,
+
+    /**
+     * This side data contains quality related information from the encoder.
+     * @code
+     * u32le quality factor of the compressed frame. Allowed range is between 1 (good) and FF_LAMBDA_MAX (bad).
+     * u8    picture type
+     * u8    error count
+     * u16   reserved
+     * u64le[error count] sum of squared differences between encoder in and output
+     * @endcode
+     */
+    AV_PKT_DATA_QUALITY_STATS,
+
+    /**
+     * This side data contains an integer value representing the stream index
+     * of a "fallback" track.  A fallback track indicates an alternate
+     * track to use when the current track can not be decoded for some reason.
+     * e.g. no decoder available for codec.
+     */
+    AV_PKT_DATA_FALLBACK_TRACK,
+
+    /**
+     * This side data corresponds to the AVCPBProperties struct.
+     */
+    AV_PKT_DATA_CPB_PROPERTIES,
+
+    /**
+     * Recommmends skipping the specified number of samples
+     * @code
+     * u32le number of samples to skip from start of this packet
+     * u32le number of samples to skip from end of this packet
+     * u8    reason for start skip
+     * u8    reason for end   skip (0=padding silence, 1=convergence)
+     * @endcode
+     */
+    AV_PKT_DATA_SKIP_SAMPLES,
+
+    /**
+     * An AV_PKT_DATA_JP_DUALMONO side data packet indicates that
+     * the packet may contain "dual mono" audio specific to Japanese DTV
+     * and if it is true, recommends only the selected channel to be used.
+     * @code
+     * u8    selected channels (0=main/left, 1=sub/right, 2=both)
+     * @endcode
+     */
+    AV_PKT_DATA_JP_DUALMONO,
+
+    /**
+     * A list of zero terminated key/value strings. There is no end marker for
+     * the list, so it is required to rely on the side data size to stop.
+     */
+    AV_PKT_DATA_STRINGS_METADATA,
+
+    /**
+     * Subtitle event position
+     * @code
+     * u32le x1
+     * u32le y1
+     * u32le x2
+     * u32le y2
+     * @endcode
+     */
+    AV_PKT_DATA_SUBTITLE_POSITION,
+
+    /**
+     * Data found in BlockAdditional element of matroska container. There is
+     * no end marker for the data, so it is required to rely on the side data
+     * size to recognize the end. 8 byte id (as found in BlockAddId) followed
+     * by data.
+     */
+    AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL,
+
+    /**
+     * The optional first identifier line of a WebVTT cue.
+     */
+    AV_PKT_DATA_WEBVTT_IDENTIFIER,
+
+    /**
+     * The optional settings (rendering instructions) that immediately
+     * follow the timestamp specifier of a WebVTT cue.
+     */
+    AV_PKT_DATA_WEBVTT_SETTINGS,
+
+    /**
+     * A list of zero terminated key/value strings. There is no end marker for
+     * the list, so it is required to rely on the side data size to stop. This
+     * side data includes updated metadata which appeared in the stream.
+     */
+    AV_PKT_DATA_METADATA_UPDATE,
+
+    /**
+     * MPEGTS stream ID as uint8_t, this is required to pass the stream ID
+     * information from the demuxer to the corresponding muxer.
+     */
+    AV_PKT_DATA_MPEGTS_STREAM_ID,
+
+    /**
+     * Mastering display metadata (based on SMPTE-2086:2014). This metadata
+     * should be associated with a video stream and contains data in the form
+     * of the AVMasteringDisplayMetadata struct.
+     */
+    AV_PKT_DATA_MASTERING_DISPLAY_METADATA,
+
+    /**
+     * This side data should be associated with a video stream and corresponds
+     * to the AVSphericalMapping structure.
+     */
+    AV_PKT_DATA_SPHERICAL,
+
+    /**
+     * Content light level (based on CTA-861.3). This metadata should be
+     * associated with a video stream and contains data in the form of the
+     * AVContentLightMetadata struct.
+     */
+    AV_PKT_DATA_CONTENT_LIGHT_LEVEL,
+
+    /**
+     * ATSC A53 Part 4 Closed Captions. This metadata should be associated with
+     * a video stream. A53 CC bitstream is stored as uint8_t in AVPacketSideData.data.
+     * The number of bytes of CC data is AVPacketSideData.size.
+     */
+    AV_PKT_DATA_A53_CC,
+
+    /**
+     * This side data is encryption initialization data.
+     * The format is not part of ABI, use av_encryption_init_info_* methods to
+     * access.
+     */
+    AV_PKT_DATA_ENCRYPTION_INIT_INFO,
+
+    /**
+     * This side data contains encryption info for how to decrypt the packet.
+     * The format is not part of ABI, use av_encryption_info_* methods to access.
+     */
+    AV_PKT_DATA_ENCRYPTION_INFO,
+
+    /**
+     * Active Format Description data consisting of a single byte as specified
+     * in ETSI TS 101 154 using AVActiveFormatDescription enum.
+     */
+    AV_PKT_DATA_AFD,
+
+    /**
+     * Producer Reference Time data corresponding to the AVProducerReferenceTime struct,
+     * usually exported by some encoders (on demand through the prft flag set in the
+     * AVCodecContext export_side_data field).
+     */
+    AV_PKT_DATA_PRFT,
+
+    /**
+     * ICC profile data consisting of an opaque octet buffer following the
+     * format described by ISO 15076-1.
+     */
+    AV_PKT_DATA_ICC_PROFILE,
+
+    /**
+     * DOVI configuration
+     * ref:
+     * dolby-vision-bitstreams-within-the-iso-base-media-file-format-v2.1.2, section 2.2
+     * dolby-vision-bitstreams-in-mpeg-2-transport-stream-multiplex-v1.2, section 3.3
+     * Tags are stored in struct AVDOVIDecoderConfigurationRecord.
+     */
+    AV_PKT_DATA_DOVI_CONF,
+
+    /**
+     * Timecode which conforms to SMPTE ST 12-1:2014. The data is an array of 4 uint32_t
+     * where the first uint32_t describes how many (1-3) of the other timecodes are used.
+     * The timecode format is described in the documentation of av_timecode_get_smpte_from_framenum()
+     * function in libavutil/timecode.h.
+     */
+    AV_PKT_DATA_S12M_TIMECODE,
+
+    /**
+     * HDR10+ dynamic metadata associated with a video frame. The metadata is in
+     * the form of the AVDynamicHDRPlus struct and contains
+     * information for color volume transform - application 4 of
+     * SMPTE 2094-40:2016 standard.
+     */
+    AV_PKT_DATA_DYNAMIC_HDR10_PLUS,
+
+    /**
+     * IAMF Mix Gain Parameter Data associated with the audio frame. This metadata
+     * is in the form of the AVIAMFParamDefinition struct and contains information
+     * defined in sections 3.6.1 and 3.8.1 of the Immersive Audio Model and
+     * Formats standard.
+     */
+    AV_PKT_DATA_IAMF_MIX_GAIN_PARAM,
+
+    /**
+     * IAMF Demixing Info Parameter Data associated with the audio frame. This
+     * metadata is in the form of the AVIAMFParamDefinition struct and contains
+     * information defined in sections 3.6.1 and 3.8.2 of the Immersive Audio Model
+     * and Formats standard.
+     */
+    AV_PKT_DATA_IAMF_DEMIXING_INFO_PARAM,
+
+    /**
+     * IAMF Recon Gain Info Parameter Data associated with the audio frame. This
+     * metadata is in the form of the AVIAMFParamDefinition struct and contains
+     * information defined in sections 3.6.1 and 3.8.3 of the Immersive Audio Model
+     * and Formats standard.
+     */
+    AV_PKT_DATA_IAMF_RECON_GAIN_INFO_PARAM,
+
+    /**
+     * Ambient viewing environment metadata, as defined by H.274. This metadata
+     * should be associated with a video stream and contains data in the form
+     * of the AVAmbientViewingEnvironment struct.
+    */
+    AV_PKT_DATA_AMBIENT_VIEWING_ENVIRONMENT,
+
+    /**
+     * The number of pixels to discard from the top/bottom/left/right border of the
+     * decoded frame to obtain the sub-rectangle intended for presentation.
+     *
+     * @code
+     * u32le crop_top
+     * u32le crop_bottom
+     * u32le crop_left
+     * u32le crop_right
+     * @endcode
+     */
+    AV_PKT_DATA_FRAME_CROPPING,
+
+    /**
+     * Raw LCEVC payload data, as a uint8_t array, with NAL emulation
+     * bytes intact.
+     */
+    AV_PKT_DATA_LCEVC,
+
+    /**
+     * The number of side data types.
+     * This is not part of the public API/ABI in the sense that it may
+     * change when new side data types are added.
+     * This must stay the last enum value.
+     * If its value becomes huge, some code using it
+     * needs to be updated as it assumes it to be smaller than other limits.
+     */
+    AV_PKT_DATA_NB
+};
+
+#if FF_API_QUALITY_FACTOR
+#define AV_PKT_DATA_QUALITY_FACTOR AV_PKT_DATA_QUALITY_STATS //DEPRECATED
+#endif
+
+/**
+ * This structure stores auxiliary information for decoding, presenting, or
+ * otherwise processing the coded stream. It is typically exported by demuxers
+ * and encoders and can be fed to decoders and muxers either in a per packet
+ * basis, or as global side data (applying to the entire coded stream).
+ *
+ * Global side data is handled as follows:
+ * - During demuxing, it may be exported through
+ *   @ref AVCodecParameters.coded_side_data "AVStream's codec parameters", which can
+ *   then be passed as input to decoders through the
+ *   @ref AVCodecContext.coded_side_data "decoder context's side data", for
+ *   initialization.
+ * - For muxing, it can be fed through @ref AVCodecParameters.coded_side_data
+ *   "AVStream's codec parameters", typically  the output of encoders through
+ *   the @ref AVCodecContext.coded_side_data "encoder context's side data", for
+ *   initialization.
+ *
+ * Packet specific side data is handled as follows:
+ * - During demuxing, it may be exported through @ref AVPacket.side_data
+ *   "AVPacket's side data", which can then be passed as input to decoders.
+ * - For muxing, it can be fed through @ref AVPacket.side_data "AVPacket's
+ *   side data", typically the output of encoders.
+ *
+ * Different modules may accept or export different types of side data
+ * depending on media type and codec. Refer to @ref AVPacketSideDataType for a
+ * list of defined types and where they may be found or used.
+ */
+typedef struct AVPacketSideData {
+    uint8_t *data;
+    size_t   size;
+    enum AVPacketSideDataType type;
+} AVPacketSideData;
+
+/**
+ * Allocate a new packet side data.
+ *
+ * @param sd    pointer to an array of side data to which the side data should
+ *              be added. *sd may be NULL, in which case the array will be
+ *              initialized.
+ * @param nb_sd pointer to an integer containing the number of entries in
+ *              the array. The integer value will be increased by 1 on success.
+ * @param type  side data type
+ * @param size  desired side data size
+ * @param flags currently unused. Must be zero
+ *
+ * @return pointer to freshly allocated side data on success, or NULL otherwise.
+ */
+AVPacketSideData *av_packet_side_data_new(AVPacketSideData **psd, int *pnb_sd,
+                                          enum AVPacketSideDataType type,
+                                          size_t size, int flags);
+
+/**
+ * Wrap existing data as packet side data.
+ *
+ * @param sd    pointer to an array of side data to which the side data should
+ *              be added. *sd may be NULL, in which case the array will be
+ *              initialized
+ * @param nb_sd pointer to an integer containing the number of entries in
+ *              the array. The integer value will be increased by 1 on success.
+ * @param type  side data type
+ * @param data  a data array. It must be allocated with the av_malloc() family
+ *              of functions. The ownership of the data is transferred to the
+ *              side data array on success
+ * @param size  size of the data array
+ * @param flags currently unused. Must be zero
+ *
+ * @return pointer to freshly allocated side data on success, or NULL otherwise
+ *         On failure, the side data array is unchanged and the data remains
+ *         owned by the caller.
+ */
+AVPacketSideData *av_packet_side_data_add(AVPacketSideData **sd, int *nb_sd,
+                                          enum AVPacketSideDataType type,
+                                          void *data, size_t size, int flags);
+
+/**
+ * Get side information from a side data array.
+ *
+ * @param sd    the array from which the side data should be fetched
+ * @param nb_sd value containing the number of entries in the array.
+ * @param type  desired side information type
+ *
+ * @return pointer to side data if present or NULL otherwise
+ */
+const AVPacketSideData *av_packet_side_data_get(const AVPacketSideData *sd,
+                                                int nb_sd,
+                                                enum AVPacketSideDataType type);
+
+/**
+ * Remove side data of the given type from a side data array.
+ *
+ * @param sd    the array from which the side data should be removed
+ * @param nb_sd pointer to an integer containing the number of entries in
+ *              the array. Will be reduced by the amount of entries removed
+ *              upon return
+ * @param type  side information type
+ */
+void av_packet_side_data_remove(AVPacketSideData *sd, int *nb_sd,
+                                enum AVPacketSideDataType type);
+
+/**
+ * Convenience function to free all the side data stored in an array, and
+ * the array itself.
+ *
+ * @param sd    pointer to array of side data to free. Will be set to NULL
+ *              upon return.
+ * @param nb_sd pointer to an integer containing the number of entries in
+ *              the array. Will be set to 0 upon return.
+ */
+void av_packet_side_data_free(AVPacketSideData **sd, int *nb_sd);
+
+const char *av_packet_side_data_name(enum AVPacketSideDataType type);
+
+/**
+ * @}
+ */
+
+/**
+ * @defgroup lavc_packet AVPacket
+ *
+ * Types and functions for working with AVPacket.
+ * @{
+ */
+
+/**
+ * This structure stores compressed data. It is typically exported by demuxers
+ * and then passed as input to decoders, or received as output from encoders and
+ * then passed to muxers.
+ *
+ * For video, it should typically contain one compressed frame. For audio it may
+ * contain several compressed frames. Encoders are allowed to output empty
+ * packets, with no compressed data, containing only side data
+ * (e.g. to update some stream parameters at the end of encoding).
+ *
+ * The semantics of data ownership depends on the buf field.
+ * If it is set, the packet data is dynamically allocated and is
+ * valid indefinitely until a call to av_packet_unref() reduces the
+ * reference count to 0.
+ *
+ * If the buf field is not set av_packet_ref() would make a copy instead
+ * of increasing the reference count.
+ *
+ * The side data is always allocated with av_malloc(), copied by
+ * av_packet_ref() and freed by av_packet_unref().
+ *
+ * sizeof(AVPacket) being a part of the public ABI is deprecated. once
+ * av_init_packet() is removed, new packets will only be able to be allocated
+ * with av_packet_alloc(), and new fields may be added to the end of the struct
+ * with a minor bump.
+ *
+ * @see av_packet_alloc
+ * @see av_packet_ref
+ * @see av_packet_unref
+ */
+typedef struct AVPacket {
+    /**
+     * A reference to the reference-counted buffer where the packet data is
+     * stored.
+     * May be NULL, then the packet data is not reference-counted.
+     */
+    AVBufferRef *buf;
+    /**
+     * Presentation timestamp in AVStream->time_base units; the time at which
+     * the decompressed packet will be presented to the user.
+     * Can be AV_NOPTS_VALUE if it is not stored in the file.
+     * pts MUST be larger or equal to dts as presentation cannot happen before
+     * decompression, unless one wants to view hex dumps. Some formats misuse
+     * the terms dts and pts/cts to mean something different. Such timestamps
+     * must be converted to true pts/dts before they are stored in AVPacket.
+     */
+    int64_t pts;
+    /**
+     * Decompression timestamp in AVStream->time_base units; the time at which
+     * the packet is decompressed.
+     * Can be AV_NOPTS_VALUE if it is not stored in the file.
+     */
+    int64_t dts;
+    uint8_t *data;
+    int   size;
+    int   stream_index;
+    /**
+     * A combination of AV_PKT_FLAG values
+     */
+    int   flags;
+    /**
+     * Additional packet data that can be provided by the container.
+     * Packet can contain several types of side information.
+     */
+    AVPacketSideData *side_data;
+    int side_data_elems;
+
+    /**
+     * Duration of this packet in AVStream->time_base units, 0 if unknown.
+     * Equals next_pts - this_pts in presentation order.
+     */
+    int64_t duration;
+
+    int64_t pos;                            ///< byte position in stream, -1 if unknown
+
+    /**
+     * for some private data of the user
+     */
+    void *opaque;
+
+    /**
+     * AVBufferRef for free use by the API user. FFmpeg will never check the
+     * contents of the buffer ref. FFmpeg calls av_buffer_unref() on it when
+     * the packet is unreferenced. av_packet_copy_props() calls create a new
+     * reference with av_buffer_ref() for the target packet's opaque_ref field.
+     *
+     * This is unrelated to the opaque field, although it serves a similar
+     * purpose.
+     */
+    AVBufferRef *opaque_ref;
+
+    /**
+     * Time base of the packet's timestamps.
+     * In the future, this field may be set on packets output by encoders or
+     * demuxers, but its value will be by default ignored on input to decoders
+     * or muxers.
+     */
+    AVRational time_base;
+} AVPacket;
+
+#if FF_API_INIT_PACKET
+attribute_deprecated
+typedef struct AVPacketList {
+    AVPacket pkt;
+    struct AVPacketList *next;
+} AVPacketList;
+#endif
+
+#define AV_PKT_FLAG_KEY     0x0001 ///< The packet contains a keyframe
+#define AV_PKT_FLAG_CORRUPT 0x0002 ///< The packet content is corrupted
+/**
+ * Flag is used to discard packets which are required to maintain valid
+ * decoder state but are not required for output and should be dropped
+ * after decoding.
+ **/
+#define AV_PKT_FLAG_DISCARD   0x0004
+/**
+ * The packet comes from a trusted source.
+ *
+ * Otherwise-unsafe constructs such as arbitrary pointers to data
+ * outside the packet may be followed.
+ */
+#define AV_PKT_FLAG_TRUSTED   0x0008
+/**
+ * Flag is used to indicate packets that contain frames that can
+ * be discarded by the decoder.  I.e. Non-reference frames.
+ */
+#define AV_PKT_FLAG_DISPOSABLE 0x0010
+
+enum AVSideDataParamChangeFlags {
+    AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE    = 0x0004,
+    AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS     = 0x0008,
+};
+
+/**
+ * Allocate an AVPacket and set its fields to default values.  The resulting
+ * struct must be freed using av_packet_free().
+ *
+ * @return An AVPacket filled with default values or NULL on failure.
+ *
+ * @note this only allocates the AVPacket itself, not the data buffers. Those
+ * must be allocated through other means such as av_new_packet.
+ *
+ * @see av_new_packet
+ */
+AVPacket *av_packet_alloc(void);
+
+/**
+ * Create a new packet that references the same data as src.
+ *
+ * This is a shortcut for av_packet_alloc()+av_packet_ref().
+ *
+ * @return newly created AVPacket on success, NULL on error.
+ *
+ * @see av_packet_alloc
+ * @see av_packet_ref
+ */
+AVPacket *av_packet_clone(const AVPacket *src);
+
+/**
+ * Free the packet, if the packet is reference counted, it will be
+ * unreferenced first.
+ *
+ * @param pkt packet to be freed. The pointer will be set to NULL.
+ * @note passing NULL is a no-op.
+ */
+void av_packet_free(AVPacket **pkt);
+
+#if FF_API_INIT_PACKET
+/**
+ * Initialize optional fields of a packet with default values.
+ *
+ * Note, this does not touch the data and size members, which have to be
+ * initialized separately.
+ *
+ * @param pkt packet
+ *
+ * @see av_packet_alloc
+ * @see av_packet_unref
+ *
+ * @deprecated This function is deprecated. Once it's removed,
+               sizeof(AVPacket) will not be a part of the ABI anymore.
+ */
+attribute_deprecated
+void av_init_packet(AVPacket *pkt);
+#endif
+
+/**
+ * Allocate the payload of a packet and initialize its fields with
+ * default values.
+ *
+ * @param pkt packet
+ * @param size wanted payload size
+ * @return 0 if OK, AVERROR_xxx otherwise
+ */
+int av_new_packet(AVPacket *pkt, int size);
+
+/**
+ * Reduce packet size, correctly zeroing padding
+ *
+ * @param pkt packet
+ * @param size new size
+ */
+void av_shrink_packet(AVPacket *pkt, int size);
+
+/**
+ * Increase packet size, correctly zeroing padding
+ *
+ * @param pkt packet
+ * @param grow_by number of bytes by which to increase the size of the packet
+ */
+int av_grow_packet(AVPacket *pkt, int grow_by);
+
+/**
+ * Initialize a reference-counted packet from av_malloc()ed data.
+ *
+ * @param pkt packet to be initialized. This function will set the data, size,
+ *        and buf fields, all others are left untouched.
+ * @param data Data allocated by av_malloc() to be used as packet data. If this
+ *        function returns successfully, the data is owned by the underlying AVBuffer.
+ *        The caller may not access the data through other means.
+ * @param size size of data in bytes, without the padding. I.e. the full buffer
+ *        size is assumed to be size + AV_INPUT_BUFFER_PADDING_SIZE.
+ *
+ * @return 0 on success, a negative AVERROR on error
+ */
+int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size);
+
+/**
+ * Allocate new information of a packet.
+ *
+ * @param pkt packet
+ * @param type side information type
+ * @param size side information size
+ * @return pointer to fresh allocated data or NULL otherwise
+ */
+uint8_t* av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
+                                 size_t size);
+
+/**
+ * Wrap an existing array as a packet side data.
+ *
+ * @param pkt packet
+ * @param type side information type
+ * @param data the side data array. It must be allocated with the av_malloc()
+ *             family of functions. The ownership of the data is transferred to
+ *             pkt.
+ * @param size side information size
+ * @return a non-negative number on success, a negative AVERROR code on
+ *         failure. On failure, the packet is unchanged and the data remains
+ *         owned by the caller.
+ */
+int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
+                            uint8_t *data, size_t size);
+
+/**
+ * Shrink the already allocated side data buffer
+ *
+ * @param pkt packet
+ * @param type side information type
+ * @param size new side information size
+ * @return 0 on success, < 0 on failure
+ */
+int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
+                               size_t size);
+
+/**
+ * Get side information from packet.
+ *
+ * @param pkt packet
+ * @param type desired side information type
+ * @param size If supplied, *size will be set to the size of the side data
+ *             or to zero if the desired side data is not present.
+ * @return pointer to data if present or NULL otherwise
+ */
+uint8_t* av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type,
+                                 size_t *size);
+
+/**
+ * Pack a dictionary for use in side_data.
+ *
+ * @param dict The dictionary to pack.
+ * @param size pointer to store the size of the returned data
+ * @return pointer to data if successful, NULL otherwise
+ */
+uint8_t *av_packet_pack_dictionary(AVDictionary *dict, size_t *size);
+/**
+ * Unpack a dictionary from side_data.
+ *
+ * @param data data from side_data
+ * @param size size of the data
+ * @param dict the metadata storage dictionary
+ * @return 0 on success, < 0 on failure
+ */
+int av_packet_unpack_dictionary(const uint8_t *data, size_t size,
+                                AVDictionary **dict);
+
+/**
+ * Convenience function to free all the side data stored.
+ * All the other fields stay untouched.
+ *
+ * @param pkt packet
+ */
+void av_packet_free_side_data(AVPacket *pkt);
+
+/**
+ * Setup a new reference to the data described by a given packet
+ *
+ * If src is reference-counted, setup dst as a new reference to the
+ * buffer in src. Otherwise allocate a new buffer in dst and copy the
+ * data from src into it.
+ *
+ * All the other fields are copied from src.
+ *
+ * @see av_packet_unref
+ *
+ * @param dst Destination packet. Will be completely overwritten.
+ * @param src Source packet
+ *
+ * @return 0 on success, a negative AVERROR on error. On error, dst
+ *         will be blank (as if returned by av_packet_alloc()).
+ */
+int av_packet_ref(AVPacket *dst, const AVPacket *src);
+
+/**
+ * Wipe the packet.
+ *
+ * Unreference the buffer referenced by the packet and reset the
+ * remaining packet fields to their default values.
+ *
+ * @param pkt The packet to be unreferenced.
+ */
+void av_packet_unref(AVPacket *pkt);
+
+/**
+ * Move every field in src to dst and reset src.
+ *
+ * @see av_packet_unref
+ *
+ * @param src Source packet, will be reset
+ * @param dst Destination packet
+ */
+void av_packet_move_ref(AVPacket *dst, AVPacket *src);
+
+/**
+ * Copy only "properties" fields from src to dst.
+ *
+ * Properties for the purpose of this function are all the fields
+ * beside those related to the packet data (buf, data, size)
+ *
+ * @param dst Destination packet
+ * @param src Source packet
+ *
+ * @return 0 on success AVERROR on failure.
+ */
+int av_packet_copy_props(AVPacket *dst, const AVPacket *src);
+
+/**
+ * Ensure the data described by a given packet is reference counted.
+ *
+ * @note This function does not ensure that the reference will be writable.
+ *       Use av_packet_make_writable instead for that purpose.
+ *
+ * @see av_packet_ref
+ * @see av_packet_make_writable
+ *
+ * @param pkt packet whose data should be made reference counted.
+ *
+ * @return 0 on success, a negative AVERROR on error. On failure, the
+ *         packet is unchanged.
+ */
+int av_packet_make_refcounted(AVPacket *pkt);
+
+/**
+ * Create a writable reference for the data described by a given packet,
+ * avoiding data copy if possible.
+ *
+ * @param pkt Packet whose data should be made writable.
+ *
+ * @return 0 on success, a negative AVERROR on failure. On failure, the
+ *         packet is unchanged.
+ */
+int av_packet_make_writable(AVPacket *pkt);
+
+/**
+ * Convert valid timing fields (timestamps / durations) in a packet from one
+ * timebase to another. Timestamps with unknown values (AV_NOPTS_VALUE) will be
+ * ignored.
+ *
+ * @param pkt packet on which the conversion will be performed
+ * @param tb_src source timebase, in which the timing fields in pkt are
+ *               expressed
+ * @param tb_dst destination timebase, to which the timing fields will be
+ *               converted
+ */
+void av_packet_rescale_ts(AVPacket *pkt, AVRational tb_src, AVRational tb_dst);
+
+/**
+ * Allocate an AVContainerFifo instance for AVPacket.
+ *
+ * @param flags currently unused
+ */
+struct AVContainerFifo *av_container_fifo_alloc_avpacket(unsigned flags);
+
+/**
+ * @}
+ */
+
+#endif // AVCODEC_PACKET_H

ffmpeg/include/libavcodec/qsv.h

@@ -0,0 +1,109 @@
+/*
+ * Intel MediaSDK QSV public API
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_QSV_H
+#define AVCODEC_QSV_H
+
+#include <mfxvideo.h>
+
+#include "libavutil/buffer.h"
+
+/**
+ * This struct is used for communicating QSV parameters between libavcodec and
+ * the caller. It is managed by the caller and must be assigned to
+ * AVCodecContext.hwaccel_context.
+ * - decoding: hwaccel_context must be set on return from the get_format()
+ *             callback
+ * - encoding: hwaccel_context must be set before avcodec_open2()
+ */
+typedef struct AVQSVContext {
+    /**
+     * If non-NULL, the session to use for encoding or decoding.
+     * Otherwise, libavcodec will try to create an internal session.
+     */
+    mfxSession session;
+
+    /**
+     * The IO pattern to use.
+     */
+    int iopattern;
+
+    /**
+     * Extra buffers to pass to encoder or decoder initialization.
+     */
+    mfxExtBuffer **ext_buffers;
+    int         nb_ext_buffers;
+
+    /**
+     * Encoding only. If this field is set to non-zero by the caller, libavcodec
+     * will create an mfxExtOpaqueSurfaceAlloc extended buffer and pass it to
+     * the encoder initialization. This only makes sense if iopattern is also
+     * set to MFX_IOPATTERN_IN_OPAQUE_MEMORY.
+     *
+     * The number of allocated opaque surfaces will be the sum of the number
+     * required by the encoder and the user-provided value nb_opaque_surfaces.
+     * The array of the opaque surfaces will be exported to the caller through
+     * the opaque_surfaces field.
+     *
+     * The caller must set this field to zero for oneVPL (MFX_VERSION >= 2.0)
+     */
+    int opaque_alloc;
+
+    /**
+     * Encoding only, and only if opaque_alloc is set to non-zero. Before
+     * calling avcodec_open2(), the caller should set this field to the number
+     * of extra opaque surfaces to allocate beyond what is required by the
+     * encoder.
+     *
+     * On return from avcodec_open2(), this field will be set by libavcodec to
+     * the total number of allocated opaque surfaces.
+     */
+    int nb_opaque_surfaces;
+
+    /**
+     * Encoding only, and only if opaque_alloc is set to non-zero. On return
+     * from avcodec_open2(), this field will be used by libavcodec to export the
+     * array of the allocated opaque surfaces to the caller, so they can be
+     * passed to other parts of the pipeline.
+     *
+     * The buffer reference exported here is owned and managed by libavcodec,
+     * the callers should make their own reference with av_buffer_ref() and free
+     * it with av_buffer_unref() when it is no longer needed.
+     *
+     * The buffer data is an nb_opaque_surfaces-sized array of mfxFrameSurface1.
+     */
+    AVBufferRef *opaque_surfaces;
+
+    /**
+     * Encoding only, and only if opaque_alloc is set to non-zero. On return
+     * from avcodec_open2(), this field will be set to the surface type used in
+     * the opaque allocation request.
+     */
+    int opaque_alloc_type;
+} AVQSVContext;
+
+/**
+ * Allocate a new context.
+ *
+ * It must be freed by the caller with av_free().
+ */
+AVQSVContext *av_qsv_alloc_context(void);
+
+#endif /* AVCODEC_QSV_H */

ffmpeg/include/libavcodec/vdpau.h

@@ -0,0 +1,171 @@
+/*
+ * The Video Decode and Presentation API for UNIX (VDPAU) is used for
+ * hardware-accelerated decoding of MPEG-1/2, H.264 and VC-1.
+ *
+ * Copyright (C) 2008 NVIDIA
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VDPAU_H
+#define AVCODEC_VDPAU_H
+
+/**
+ * @file
+ * @ingroup lavc_codec_hwaccel_vdpau
+ * Public libavcodec VDPAU header.
+ */
+
+
+/**
+ * @defgroup lavc_codec_hwaccel_vdpau VDPAU Decoder and Renderer
+ * @ingroup lavc_codec_hwaccel
+ *
+ * VDPAU hardware acceleration has two modules
+ * - VDPAU decoding
+ * - VDPAU presentation
+ *
+ * The VDPAU decoding module parses all headers using FFmpeg
+ * parsing mechanisms and uses VDPAU for the actual decoding.
+ *
+ * As per the current implementation, the actual decoding
+ * and rendering (API calls) are done as part of the VDPAU
+ * presentation (vo_vdpau.c) module.
+ *
+ * @{
+ */
+
+#include <vdpau/vdpau.h>
+
+#include "libavutil/avconfig.h"
+#include "libavutil/attributes.h"
+
+#include "avcodec.h"
+
+struct AVCodecContext;
+struct AVFrame;
+
+typedef int (*AVVDPAU_Render2)(struct AVCodecContext *, struct AVFrame *,
+                               const VdpPictureInfo *, uint32_t,
+                               const VdpBitstreamBuffer *);
+
+/**
+ * This structure is used to share data between the libavcodec library and
+ * the client video application.
+ * This structure will be allocated and stored in AVCodecContext.hwaccel_context
+ * by av_vdpau_bind_context(). Members can be set by the user once
+ * during initialization or through each AVCodecContext.get_buffer()
+ * function call. In any case, they must be valid prior to calling
+ * decoding functions.
+ *
+ * The size of this structure is not a part of the public ABI and must not
+ * be used outside of libavcodec.
+ */
+typedef struct AVVDPAUContext {
+    /**
+     * VDPAU decoder handle
+     *
+     * Set by user.
+     */
+    VdpDecoder decoder;
+
+    /**
+     * VDPAU decoder render callback
+     *
+     * Set by the user.
+     */
+    VdpDecoderRender *render;
+
+    AVVDPAU_Render2 render2;
+} AVVDPAUContext;
+
+#if FF_API_VDPAU_ALLOC_GET_SET
+/**
+ * @brief allocation function for AVVDPAUContext
+ *
+ * Allows extending the struct without breaking API/ABI
+ * @deprecated use av_vdpau_bind_context() instead
+ */
+attribute_deprecated
+AVVDPAUContext *av_alloc_vdpaucontext(void);
+
+/**
+ * @deprecated render2 is public and can be accessed directly
+ */
+attribute_deprecated
+AVVDPAU_Render2 av_vdpau_hwaccel_get_render2(const AVVDPAUContext *);
+/**
+ * @deprecated render2 is public and can be accessed directly
+ */
+attribute_deprecated
+void av_vdpau_hwaccel_set_render2(AVVDPAUContext *, AVVDPAU_Render2);
+#endif
+
+/**
+ * Associate a VDPAU device with a codec context for hardware acceleration.
+ * This function is meant to be called from the get_format() codec callback,
+ * or earlier. It can also be called after avcodec_flush_buffers() to change
+ * the underlying VDPAU device mid-stream (e.g. to recover from non-transparent
+ * display preemption).
+ *
+ * @note get_format() must return AV_PIX_FMT_VDPAU if this function completes
+ * successfully.
+ *
+ * @param avctx decoding context whose get_format() callback is invoked
+ * @param device VDPAU device handle to use for hardware acceleration
+ * @param get_proc_address VDPAU device driver
+ * @param flags zero of more OR'd AV_HWACCEL_FLAG_* flags
+ *
+ * @return 0 on success, an AVERROR code on failure.
+ */
+int av_vdpau_bind_context(AVCodecContext *avctx, VdpDevice device,
+                          VdpGetProcAddress *get_proc_address, unsigned flags);
+
+/**
+ * Gets the parameters to create an adequate VDPAU video surface for the codec
+ * context using VDPAU hardware decoding acceleration.
+ *
+ * @note Behavior is undefined if the context was not successfully bound to a
+ * VDPAU device using av_vdpau_bind_context().
+ *
+ * @param avctx the codec context being used for decoding the stream
+ * @param type storage space for the VDPAU video surface chroma type
+ *              (or NULL to ignore)
+ * @param width storage space for the VDPAU video surface pixel width
+ *              (or NULL to ignore)
+ * @param height storage space for the VDPAU video surface pixel height
+ *              (or NULL to ignore)
+ *
+ * @return 0 on success, a negative AVERROR code on failure.
+ */
+int av_vdpau_get_surface_parameters(AVCodecContext *avctx, VdpChromaType *type,
+                                    uint32_t *width, uint32_t *height);
+
+#if FF_API_VDPAU_ALLOC_GET_SET
+/**
+ * Allocate an AVVDPAUContext.
+ *
+ * @return Newly-allocated AVVDPAUContext or NULL on failure.
+ * @deprecated use av_vdpau_bind_context() instead
+ */
+attribute_deprecated
+AVVDPAUContext *av_vdpau_alloc_context(void);
+#endif
+
+/** @} */
+
+#endif /* AVCODEC_VDPAU_H */

ffmpeg/include/libavcodec/version.h

@@ -0,0 +1,45 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VERSION_H
+#define AVCODEC_VERSION_H
+
+/**
+ * @file
+ * @ingroup libavc
+ * Libavcodec version macros.
+ */
+
+#include "libavutil/version.h"
+
+#include "version_major.h"
+
+#define LIBAVCODEC_VERSION_MINOR  31
+#define LIBAVCODEC_VERSION_MICRO 100
+
+#define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
+                                               LIBAVCODEC_VERSION_MINOR, \
+                                               LIBAVCODEC_VERSION_MICRO)
+#define LIBAVCODEC_VERSION      AV_VERSION(LIBAVCODEC_VERSION_MAJOR,    \
+                                           LIBAVCODEC_VERSION_MINOR,    \
+                                           LIBAVCODEC_VERSION_MICRO)
+#define LIBAVCODEC_BUILD        LIBAVCODEC_VERSION_INT
+
+#define LIBAVCODEC_IDENT        "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
+
+#endif /* AVCODEC_VERSION_H */

ffmpeg/include/libavcodec/version_major.h

@@ -0,0 +1,61 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VERSION_MAJOR_H
+#define AVCODEC_VERSION_MAJOR_H
+
+/**
+ * @file
+ * @ingroup libavc
+ * Libavcodec version macros.
+ */
+
+#define LIBAVCODEC_VERSION_MAJOR  61
+
+/**
+ * FF_API_* defines may be placed below to indicate public API that will be
+ * dropped at a future version bump. The defines themselves are not part of
+ * the public API and may change, break or disappear at any time.
+ *
+ * @note, when bumping the major version it is recommended to manually
+ * disable each FF_API_* in its own commit instead of disabling them all
+ * at once through the bump. This improves the git bisect-ability of the change.
+ */
+
+#define FF_API_INIT_PACKET         (LIBAVCODEC_VERSION_MAJOR < 62)
+#define FF_API_SUBFRAMES           (LIBAVCODEC_VERSION_MAJOR < 62)
+#define FF_API_TICKS_PER_FRAME     (LIBAVCODEC_VERSION_MAJOR < 62)
+#define FF_API_DROPCHANGED         (LIBAVCODEC_VERSION_MAJOR < 62)
+
+#define FF_API_AVFFT               (LIBAVCODEC_VERSION_MAJOR < 62)
+#define FF_API_FF_PROFILE_LEVEL    (LIBAVCODEC_VERSION_MAJOR < 62)
+#define FF_API_AVCODEC_CLOSE       (LIBAVCODEC_VERSION_MAJOR < 62)
+#define FF_API_BUFFER_MIN_SIZE     (LIBAVCODEC_VERSION_MAJOR < 62)
+#define FF_API_VDPAU_ALLOC_GET_SET (LIBAVCODEC_VERSION_MAJOR < 62)
+#define FF_API_QUALITY_FACTOR      (LIBAVCODEC_VERSION_MAJOR < 62)
+#define FF_API_V408_CODECID        (LIBAVCODEC_VERSION_MAJOR < 62)
+#define FF_API_CODEC_PROPS         (LIBAVCODEC_VERSION_MAJOR < 63)
+
+// reminder to remove the OMX encoder on next major bump
+#define FF_CODEC_OMX               (LIBAVCODEC_VERSION_MAJOR < 62)
+// reminder to remove Sonic Lossy/Lossless encoders on next major bump
+#define FF_CODEC_SONIC_ENC         (LIBAVCODEC_VERSION_MAJOR < 62)
+// reminder to remove Sonic decoder on next-next major bump
+#define FF_CODEC_SONIC_DEC         (LIBAVCODEC_VERSION_MAJOR < 63)
+
+#endif /* AVCODEC_VERSION_MAJOR_H */

ffmpeg/include/libavcodec/videotoolbox.h

@@ -0,0 +1,85 @@
+/*
+ * Videotoolbox hardware acceleration
+ *
+ * copyright (c) 2012 Sebastien Zwickert
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VIDEOTOOLBOX_H
+#define AVCODEC_VIDEOTOOLBOX_H
+
+/**
+ * @file
+ * @ingroup lavc_codec_hwaccel_videotoolbox
+ * Public libavcodec Videotoolbox header.
+ */
+
+/**
+ * @defgroup lavc_codec_hwaccel_videotoolbox VideoToolbox Decoder
+ * @ingroup lavc_codec_hwaccel
+ *
+ * Hardware accelerated decoding using VideoToolbox on Apple Platforms
+ *
+ * @{
+ */
+
+#include <stdint.h>
+
+#define Picture QuickdrawPicture
+#include <VideoToolbox/VideoToolbox.h>
+#undef Picture
+
+#include "libavcodec/avcodec.h"
+
+#include "libavutil/attributes.h"
+
+/**
+ * This struct holds all the information that needs to be passed
+ * between the caller and libavcodec for initializing Videotoolbox decoding.
+ * Its size is not a part of the public ABI, it must be allocated with
+ * av_videotoolbox_alloc_context() and freed with av_free().
+ */
+typedef struct AVVideotoolboxContext {
+    /**
+     * Videotoolbox decompression session object.
+     */
+    VTDecompressionSessionRef session;
+
+    /**
+     * CVPixelBuffer Format Type that Videotoolbox will use for decoded frames.
+     * set by the caller. If this is set to 0, then no specific format is
+     * requested from the decoder, and its native format is output.
+     */
+    OSType cv_pix_fmt_type;
+
+    /**
+     * CoreMedia Format Description that Videotoolbox will use to create the decompression session.
+     */
+    CMVideoFormatDescriptionRef cm_fmt_desc;
+
+    /**
+     * CoreMedia codec type that Videotoolbox will use to create the decompression session.
+     */
+    int cm_codec_type;
+} AVVideotoolboxContext;
+
+/**
+ * @}
+ */
+
+#endif /* AVCODEC_VIDEOTOOLBOX_H */

ffmpeg/include/libavcodec/vorbis_parser.h

@@ -0,0 +1,74 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * A public API for Vorbis parsing
+ *
+ * Determines the duration for each packet.
+ */
+
+#ifndef AVCODEC_VORBIS_PARSER_H
+#define AVCODEC_VORBIS_PARSER_H
+
+#include <stdint.h>
+
+typedef struct AVVorbisParseContext AVVorbisParseContext;
+
+/**
+ * Allocate and initialize the Vorbis parser using headers in the extradata.
+ */
+AVVorbisParseContext *av_vorbis_parse_init(const uint8_t *extradata,
+                                           int extradata_size);
+
+/**
+ * Free the parser and everything associated with it.
+ */
+void av_vorbis_parse_free(AVVorbisParseContext **s);
+
+#define VORBIS_FLAG_HEADER  0x00000001
+#define VORBIS_FLAG_COMMENT 0x00000002
+#define VORBIS_FLAG_SETUP   0x00000004
+
+/**
+ * Get the duration for a Vorbis packet.
+ *
+ * If @p flags is @c NULL,
+ * special frames are considered invalid.
+ *
+ * @param s        Vorbis parser context
+ * @param buf      buffer containing a Vorbis frame
+ * @param buf_size size of the buffer
+ * @param flags    flags for special frames
+ */
+int av_vorbis_parse_frame_flags(AVVorbisParseContext *s, const uint8_t *buf,
+                                int buf_size, int *flags);
+
+/**
+ * Get the duration for a Vorbis packet.
+ *
+ * @param s        Vorbis parser context
+ * @param buf      buffer containing a Vorbis frame
+ * @param buf_size size of the buffer
+ */
+int av_vorbis_parse_frame(AVVorbisParseContext *s, const uint8_t *buf,
+                          int buf_size);
+
+void av_vorbis_parse_reset(AVVorbisParseContext *s);
+
+#endif /* AVCODEC_VORBIS_PARSER_H */

ffmpeg/include/libavdevice/avdevice.h

@@ -0,0 +1,397 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVDEVICE_AVDEVICE_H
+#define AVDEVICE_AVDEVICE_H
+
+#include "version_major.h"
+#ifndef HAVE_AV_CONFIG_H
+/* When included as part of the ffmpeg build, only include the major version
+ * to avoid unnecessary rebuilds. When included externally, keep including
+ * the full version information. */
+#include "version.h"
+#endif
+
+/**
+ * @file
+ * @ingroup lavd
+ * Main libavdevice API header
+ */
+
+/**
+ * @defgroup lavd libavdevice
+ * Special devices muxing/demuxing library.
+ *
+ * Libavdevice is a complementary library to @ref libavf "libavformat". It
+ * provides various "special" platform-specific muxers and demuxers, e.g. for
+ * grabbing devices, audio capture and playback etc. As a consequence, the
+ * (de)muxers in libavdevice are of the AVFMT_NOFILE type (they use their own
+ * I/O functions). The filename passed to avformat_open_input() often does not
+ * refer to an actually existing file, but has some special device-specific
+ * meaning - e.g. for xcbgrab it is the display name.
+ *
+ * To use libavdevice, simply call avdevice_register_all() to register all
+ * compiled muxers and demuxers. They all use standard libavformat API.
+ *
+ * @{
+ */
+
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
+#include "libavutil/dict.h"
+#include "libavformat/avformat.h"
+
+/**
+ * Return the LIBAVDEVICE_VERSION_INT constant.
+ */
+unsigned avdevice_version(void);
+
+/**
+ * Return the libavdevice build-time configuration.
+ */
+const char *avdevice_configuration(void);
+
+/**
+ * Return the libavdevice license.
+ */
+const char *avdevice_license(void);
+
+/**
+ * Initialize libavdevice and register all the input and output devices.
+ */
+void avdevice_register_all(void);
+
+/**
+ * Audio input devices iterator.
+ *
+ * If d is NULL, returns the first registered input audio/video device,
+ * if d is non-NULL, returns the next registered input audio/video device after d
+ * or NULL if d is the last one.
+ */
+const AVInputFormat *av_input_audio_device_next(const AVInputFormat  *d);
+
+/**
+ * Video input devices iterator.
+ *
+ * If d is NULL, returns the first registered input audio/video device,
+ * if d is non-NULL, returns the next registered input audio/video device after d
+ * or NULL if d is the last one.
+ */
+const AVInputFormat *av_input_video_device_next(const AVInputFormat  *d);
+
+/**
+ * Audio output devices iterator.
+ *
+ * If d is NULL, returns the first registered output audio/video device,
+ * if d is non-NULL, returns the next registered output audio/video device after d
+ * or NULL if d is the last one.
+ */
+const AVOutputFormat *av_output_audio_device_next(const AVOutputFormat *d);
+
+/**
+ * Video output devices iterator.
+ *
+ * If d is NULL, returns the first registered output audio/video device,
+ * if d is non-NULL, returns the next registered output audio/video device after d
+ * or NULL if d is the last one.
+ */
+const AVOutputFormat *av_output_video_device_next(const AVOutputFormat *d);
+
+typedef struct AVDeviceRect {
+    int x;      /**< x coordinate of top left corner */
+    int y;      /**< y coordinate of top left corner */
+    int width;  /**< width */
+    int height; /**< height */
+} AVDeviceRect;
+
+/**
+ * Message types used by avdevice_app_to_dev_control_message().
+ */
+enum AVAppToDevMessageType {
+    /**
+     * Dummy message.
+     */
+    AV_APP_TO_DEV_NONE = MKBETAG('N','O','N','E'),
+
+    /**
+     * Window size change message.
+     *
+     * Message is sent to the device every time the application changes the size
+     * of the window device renders to.
+     * Message should also be sent right after window is created.
+     *
+     * data: AVDeviceRect: new window size.
+     */
+    AV_APP_TO_DEV_WINDOW_SIZE = MKBETAG('G','E','O','M'),
+
+    /**
+     * Repaint request message.
+     *
+     * Message is sent to the device when window has to be repainted.
+     *
+     * data: AVDeviceRect: area required to be repainted.
+     *       NULL: whole area is required to be repainted.
+     */
+    AV_APP_TO_DEV_WINDOW_REPAINT = MKBETAG('R','E','P','A'),
+
+    /**
+     * Request pause/play.
+     *
+     * Application requests pause/unpause playback.
+     * Mostly usable with devices that have internal buffer.
+     * By default devices are not paused.
+     *
+     * data: NULL
+     */
+    AV_APP_TO_DEV_PAUSE        = MKBETAG('P', 'A', 'U', ' '),
+    AV_APP_TO_DEV_PLAY         = MKBETAG('P', 'L', 'A', 'Y'),
+    AV_APP_TO_DEV_TOGGLE_PAUSE = MKBETAG('P', 'A', 'U', 'T'),
+
+    /**
+     * Volume control message.
+     *
+     * Set volume level. It may be device-dependent if volume
+     * is changed per stream or system wide. Per stream volume
+     * change is expected when possible.
+     *
+     * data: double: new volume with range of 0.0 - 1.0.
+     */
+    AV_APP_TO_DEV_SET_VOLUME = MKBETAG('S', 'V', 'O', 'L'),
+
+    /**
+     * Mute control messages.
+     *
+     * Change mute state. It may be device-dependent if mute status
+     * is changed per stream or system wide. Per stream mute status
+     * change is expected when possible.
+     *
+     * data: NULL.
+     */
+    AV_APP_TO_DEV_MUTE        = MKBETAG(' ', 'M', 'U', 'T'),
+    AV_APP_TO_DEV_UNMUTE      = MKBETAG('U', 'M', 'U', 'T'),
+    AV_APP_TO_DEV_TOGGLE_MUTE = MKBETAG('T', 'M', 'U', 'T'),
+
+    /**
+     * Get volume/mute messages.
+     *
+     * Force the device to send AV_DEV_TO_APP_VOLUME_LEVEL_CHANGED or
+     * AV_DEV_TO_APP_MUTE_STATE_CHANGED command respectively.
+     *
+     * data: NULL.
+     */
+    AV_APP_TO_DEV_GET_VOLUME = MKBETAG('G', 'V', 'O', 'L'),
+    AV_APP_TO_DEV_GET_MUTE   = MKBETAG('G', 'M', 'U', 'T'),
+};
+
+/**
+ * Message types used by avdevice_dev_to_app_control_message().
+ */
+enum AVDevToAppMessageType {
+    /**
+     * Dummy message.
+     */
+    AV_DEV_TO_APP_NONE = MKBETAG('N','O','N','E'),
+
+    /**
+     * Create window buffer message.
+     *
+     * Device requests to create a window buffer. Exact meaning is device-
+     * and application-dependent. Message is sent before rendering first
+     * frame and all one-shot initializations should be done here.
+     * Application is allowed to ignore preferred window buffer size.
+     *
+     * @note: Application is obligated to inform about window buffer size
+     *        with AV_APP_TO_DEV_WINDOW_SIZE message.
+     *
+     * data: AVDeviceRect: preferred size of the window buffer.
+     *       NULL: no preferred size of the window buffer.
+     */
+    AV_DEV_TO_APP_CREATE_WINDOW_BUFFER = MKBETAG('B','C','R','E'),
+
+    /**
+     * Prepare window buffer message.
+     *
+     * Device requests to prepare a window buffer for rendering.
+     * Exact meaning is device- and application-dependent.
+     * Message is sent before rendering of each frame.
+     *
+     * data: NULL.
+     */
+    AV_DEV_TO_APP_PREPARE_WINDOW_BUFFER = MKBETAG('B','P','R','E'),
+
+    /**
+     * Display window buffer message.
+     *
+     * Device requests to display a window buffer.
+     * Message is sent when new frame is ready to be displayed.
+     * Usually buffers need to be swapped in handler of this message.
+     *
+     * data: NULL.
+     */
+    AV_DEV_TO_APP_DISPLAY_WINDOW_BUFFER = MKBETAG('B','D','I','S'),
+
+    /**
+     * Destroy window buffer message.
+     *
+     * Device requests to destroy a window buffer.
+     * Message is sent when device is about to be destroyed and window
+     * buffer is not required anymore.
+     *
+     * data: NULL.
+     */
+    AV_DEV_TO_APP_DESTROY_WINDOW_BUFFER = MKBETAG('B','D','E','S'),
+
+    /**
+     * Buffer fullness status messages.
+     *
+     * Device signals buffer overflow/underflow.
+     *
+     * data: NULL.
+     */
+    AV_DEV_TO_APP_BUFFER_OVERFLOW = MKBETAG('B','O','F','L'),
+    AV_DEV_TO_APP_BUFFER_UNDERFLOW = MKBETAG('B','U','F','L'),
+
+    /**
+     * Buffer readable/writable.
+     *
+     * Device informs that buffer is readable/writable.
+     * When possible, device informs how many bytes can be read/write.
+     *
+     * @warning Device may not inform when number of bytes than can be read/write changes.
+     *
+     * data: int64_t: amount of bytes available to read/write.
+     *       NULL: amount of bytes available to read/write is not known.
+     */
+    AV_DEV_TO_APP_BUFFER_READABLE = MKBETAG('B','R','D',' '),
+    AV_DEV_TO_APP_BUFFER_WRITABLE = MKBETAG('B','W','R',' '),
+
+    /**
+     * Mute state change message.
+     *
+     * Device informs that mute state has changed.
+     *
+     * data: int: 0 for not muted state, non-zero for muted state.
+     */
+    AV_DEV_TO_APP_MUTE_STATE_CHANGED = MKBETAG('C','M','U','T'),
+
+    /**
+     * Volume level change message.
+     *
+     * Device informs that volume level has changed.
+     *
+     * data: double: new volume with range of 0.0 - 1.0.
+     */
+    AV_DEV_TO_APP_VOLUME_LEVEL_CHANGED = MKBETAG('C','V','O','L'),
+};
+
+/**
+ * Send control message from application to device.
+ *
+ * @param s         device context.
+ * @param type      message type.
+ * @param data      message data. Exact type depends on message type.
+ * @param data_size size of message data.
+ * @return >= 0 on success, negative on error.
+ *         AVERROR(ENOSYS) when device doesn't implement handler of the message.
+ */
+int avdevice_app_to_dev_control_message(struct AVFormatContext *s,
+                                        enum AVAppToDevMessageType type,
+                                        void *data, size_t data_size);
+
+/**
+ * Send control message from device to application.
+ *
+ * @param s         device context.
+ * @param type      message type.
+ * @param data      message data. Can be NULL.
+ * @param data_size size of message data.
+ * @return >= 0 on success, negative on error.
+ *         AVERROR(ENOSYS) when application doesn't implement handler of the message.
+ */
+int avdevice_dev_to_app_control_message(struct AVFormatContext *s,
+                                        enum AVDevToAppMessageType type,
+                                        void *data, size_t data_size);
+
+/**
+ * Structure describes basic parameters of the device.
+ */
+typedef struct AVDeviceInfo {
+    char *device_name;                   /**< device name, format depends on device */
+    char *device_description;            /**< human friendly name */
+    enum AVMediaType *media_types;       /**< array indicating what media types(s), if any, a device can provide. If null, cannot provide any */
+    int nb_media_types;                  /**< length of media_types array, 0 if device cannot provide any media types */
+} AVDeviceInfo;
+
+/**
+ * List of devices.
+ */
+typedef struct AVDeviceInfoList {
+    AVDeviceInfo **devices;              /**< list of autodetected devices */
+    int nb_devices;                      /**< number of autodetected devices */
+    int default_device;                  /**< index of default device or -1 if no default */
+} AVDeviceInfoList;
+
+/**
+ * List devices.
+ *
+ * Returns available device names and their parameters.
+ *
+ * @note: Some devices may accept system-dependent device names that cannot be
+ *        autodetected. The list returned by this function cannot be assumed to
+ *        be always completed.
+ *
+ * @param s                device context.
+ * @param[out] device_list list of autodetected devices.
+ * @return count of autodetected devices, negative on error.
+ */
+int avdevice_list_devices(struct AVFormatContext *s, AVDeviceInfoList **device_list);
+
+/**
+ * Convenient function to free result of avdevice_list_devices().
+ *
+ * @param device_list device list to be freed.
+ */
+void avdevice_free_list_devices(AVDeviceInfoList **device_list);
+
+/**
+ * List devices.
+ *
+ * Returns available device names and their parameters.
+ * These are convinient wrappers for avdevice_list_devices().
+ * Device context is allocated and deallocated internally.
+ *
+ * @param device           device format. May be NULL if device name is set.
+ * @param device_name      device name. May be NULL if device format is set.
+ * @param device_options   An AVDictionary filled with device-private options. May be NULL.
+ *                         The same options must be passed later to avformat_write_header() for output
+ *                         devices or avformat_open_input() for input devices, or at any other place
+ *                         that affects device-private options.
+ * @param[out] device_list list of autodetected devices
+ * @return count of autodetected devices, negative on error.
+ * @note device argument takes precedence over device_name when both are set.
+ */
+int avdevice_list_input_sources(const AVInputFormat *device, const char *device_name,
+                                AVDictionary *device_options, AVDeviceInfoList **device_list);
+int avdevice_list_output_sinks(const AVOutputFormat *device, const char *device_name,
+                               AVDictionary *device_options, AVDeviceInfoList **device_list);
+
+/**
+ * @}
+ */
+
+#endif /* AVDEVICE_AVDEVICE_H */

ffmpeg/include/libavdevice/version.h

@@ -0,0 +1,45 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVDEVICE_VERSION_H
+#define AVDEVICE_VERSION_H
+
+/**
+ * @file
+ * @ingroup lavd
+ * Libavdevice version macros
+ */
+
+#include "libavutil/version.h"
+
+#include "version_major.h"
+
+#define LIBAVDEVICE_VERSION_MINOR   4
+#define LIBAVDEVICE_VERSION_MICRO 100
+
+#define LIBAVDEVICE_VERSION_INT AV_VERSION_INT(LIBAVDEVICE_VERSION_MAJOR, \
+                                               LIBAVDEVICE_VERSION_MINOR, \
+                                               LIBAVDEVICE_VERSION_MICRO)
+#define LIBAVDEVICE_VERSION     AV_VERSION(LIBAVDEVICE_VERSION_MAJOR, \
+                                           LIBAVDEVICE_VERSION_MINOR, \
+                                           LIBAVDEVICE_VERSION_MICRO)
+#define LIBAVDEVICE_BUILD       LIBAVDEVICE_VERSION_INT
+
+#define LIBAVDEVICE_IDENT       "Lavd" AV_STRINGIFY(LIBAVDEVICE_VERSION)
+
+#endif /* AVDEVICE_VERSION_H */

ffmpeg/include/libavdevice/version_major.h

@@ -0,0 +1,43 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVDEVICE_VERSION_MAJOR_H
+#define AVDEVICE_VERSION_MAJOR_H
+
+/**
+ * @file
+ * @ingroup lavd
+ * Libavdevice version macros
+ */
+
+#define LIBAVDEVICE_VERSION_MAJOR  61
+
+/**
+ * FF_API_* defines may be placed below to indicate public API that will be
+ * dropped at a future version bump. The defines themselves are not part of
+ * the public API and may change, break or disappear at any time.
+ */
+
+// reminder to remove the bktr device on next major bump
+#define FF_API_BKTR_DEVICE (LIBAVDEVICE_VERSION_MAJOR < 62)
+// reminder to remove the opengl device on next major bump
+#define FF_API_OPENGL_DEVICE (LIBAVDEVICE_VERSION_MAJOR < 62)
+// reminder to remove the sdl2 device on next major bump
+#define FF_API_SDL2_DEVICE (LIBAVDEVICE_VERSION_MAJOR < 62)
+
+#endif /* AVDEVICE_VERSION_MAJOR_H */

ffmpeg/include/libavfilter/avfilter.h

@@ -0,0 +1,1406 @@
+/*
+ * filter layer
+ * Copyright (c) 2007 Bobby Bingham
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFILTER_AVFILTER_H
+#define AVFILTER_AVFILTER_H
+
+/**
+ * @file
+ * @ingroup lavfi
+ * Main libavfilter public API header
+ */
+
+/**
+ * @defgroup lavfi libavfilter
+ * Graph-based frame editing library.
+ *
+ * @{
+ */
+
+#include <stddef.h>
+
+#include "libavutil/attributes.h"
+#include "libavutil/avutil.h"
+#include "libavutil/buffer.h"
+#include "libavutil/dict.h"
+#include "libavutil/frame.h"
+#include "libavutil/log.h"
+#include "libavutil/samplefmt.h"
+#include "libavutil/pixfmt.h"
+#include "libavutil/rational.h"
+
+#include "libavfilter/version_major.h"
+#ifndef HAVE_AV_CONFIG_H
+/* When included as part of the ffmpeg build, only include the major version
+ * to avoid unnecessary rebuilds. When included externally, keep including
+ * the full version information. */
+#include "libavfilter/version.h"
+#endif
+
+/**
+ * Return the LIBAVFILTER_VERSION_INT constant.
+ */
+unsigned avfilter_version(void);
+
+/**
+ * Return the libavfilter build-time configuration.
+ */
+const char *avfilter_configuration(void);
+
+/**
+ * Return the libavfilter license.
+ */
+const char *avfilter_license(void);
+
+typedef struct AVFilterContext AVFilterContext;
+typedef struct AVFilterLink    AVFilterLink;
+typedef struct AVFilterPad     AVFilterPad;
+typedef struct AVFilterFormats AVFilterFormats;
+typedef struct AVFilterChannelLayouts AVFilterChannelLayouts;
+
+/**
+ * Get the name of an AVFilterPad.
+ *
+ * @param pads an array of AVFilterPads
+ * @param pad_idx index of the pad in the array; it is the caller's
+ *                responsibility to ensure the index is valid
+ *
+ * @return name of the pad_idx'th pad in pads
+ */
+const char *avfilter_pad_get_name(const AVFilterPad *pads, int pad_idx);
+
+/**
+ * Get the type of an AVFilterPad.
+ *
+ * @param pads an array of AVFilterPads
+ * @param pad_idx index of the pad in the array; it is the caller's
+ *                responsibility to ensure the index is valid
+ *
+ * @return type of the pad_idx'th pad in pads
+ */
+enum AVMediaType avfilter_pad_get_type(const AVFilterPad *pads, int pad_idx);
+
+/**
+ * Lists of formats / etc. supported by an end of a link.
+ *
+ * This structure is directly part of AVFilterLink, in two copies:
+ * one for the source filter, one for the destination filter.
+
+ * These lists are used for negotiating the format to actually be used,
+ * which will be loaded into the format and channel_layout members of
+ * AVFilterLink, when chosen.
+ */
+typedef struct AVFilterFormatsConfig {
+
+    /**
+     * List of supported formats (pixel or sample).
+     */
+    AVFilterFormats *formats;
+
+    /**
+     * Lists of supported sample rates, only for audio.
+     */
+    AVFilterFormats  *samplerates;
+
+    /**
+     * Lists of supported channel layouts, only for audio.
+     */
+    AVFilterChannelLayouts  *channel_layouts;
+
+    /**
+     * Lists of supported YUV color metadata, only for YUV video.
+     */
+    AVFilterFormats *color_spaces;  ///< AVColorSpace
+    AVFilterFormats *color_ranges;  ///< AVColorRange
+
+} AVFilterFormatsConfig;
+
+/**
+ * The number of the filter inputs is not determined just by AVFilter.inputs.
+ * The filter might add additional inputs during initialization depending on the
+ * options supplied to it.
+ */
+#define AVFILTER_FLAG_DYNAMIC_INPUTS        (1 << 0)
+/**
+ * The number of the filter outputs is not determined just by AVFilter.outputs.
+ * The filter might add additional outputs during initialization depending on
+ * the options supplied to it.
+ */
+#define AVFILTER_FLAG_DYNAMIC_OUTPUTS       (1 << 1)
+/**
+ * The filter supports multithreading by splitting frames into multiple parts
+ * and processing them concurrently.
+ */
+#define AVFILTER_FLAG_SLICE_THREADS         (1 << 2)
+/**
+ * The filter is a "metadata" filter - it does not modify the frame data in any
+ * way. It may only affect the metadata (i.e. those fields copied by
+ * av_frame_copy_props()).
+ *
+ * More precisely, this means:
+ * - video: the data of any frame output by the filter must be exactly equal to
+ *   some frame that is received on one of its inputs. Furthermore, all frames
+ *   produced on a given output must correspond to frames received on the same
+ *   input and their order must be unchanged. Note that the filter may still
+ *   drop or duplicate the frames.
+ * - audio: the data produced by the filter on any of its outputs (viewed e.g.
+ *   as an array of interleaved samples) must be exactly equal to the data
+ *   received by the filter on one of its inputs.
+ */
+#define AVFILTER_FLAG_METADATA_ONLY         (1 << 3)
+
+/**
+ * The filter can create hardware frames using AVFilterContext.hw_device_ctx.
+ */
+#define AVFILTER_FLAG_HWDEVICE              (1 << 4)
+/**
+ * Some filters support a generic "enable" expression option that can be used
+ * to enable or disable a filter in the timeline. Filters supporting this
+ * option have this flag set. When the enable expression is false, the default
+ * no-op filter_frame() function is called in place of the filter_frame()
+ * callback defined on each input pad, thus the frame is passed unchanged to
+ * the next filters.
+ */
+#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC  (1 << 16)
+/**
+ * Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will
+ * have its filter_frame() callback(s) called as usual even when the enable
+ * expression is false. The filter will disable filtering within the
+ * filter_frame() callback(s) itself, for example executing code depending on
+ * the AVFilterContext->is_disabled value.
+ */
+#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL (1 << 17)
+/**
+ * Handy mask to test whether the filter supports or no the timeline feature
+ * (internally or generically).
+ */
+#define AVFILTER_FLAG_SUPPORT_TIMELINE (AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL)
+
+/**
+ * Filter definition. This defines the pads a filter contains, and all the
+ * callback functions used to interact with the filter.
+ */
+typedef struct AVFilter {
+    /**
+     * Filter name. Must be non-NULL and unique among filters.
+     */
+    const char *name;
+
+    /**
+     * A description of the filter. May be NULL.
+     *
+     * You should use the NULL_IF_CONFIG_SMALL() macro to define it.
+     */
+    const char *description;
+
+    /**
+     * List of static inputs.
+     *
+     * NULL if there are no (static) inputs. Instances of filters with
+     * AVFILTER_FLAG_DYNAMIC_INPUTS set may have more inputs than present in
+     * this list.
+     */
+    const AVFilterPad *inputs;
+
+    /**
+     * List of static outputs.
+     *
+     * NULL if there are no (static) outputs. Instances of filters with
+     * AVFILTER_FLAG_DYNAMIC_OUTPUTS set may have more outputs than present in
+     * this list.
+     */
+    const AVFilterPad *outputs;
+
+    /**
+     * A class for the private data, used to declare filter private AVOptions.
+     * This field is NULL for filters that do not declare any options.
+     *
+     * If this field is non-NULL, the first member of the filter private data
+     * must be a pointer to AVClass, which will be set by libavfilter generic
+     * code to this class.
+     */
+    const AVClass *priv_class;
+
+    /**
+     * A combination of AVFILTER_FLAG_*
+     */
+    int flags;
+
+    /*****************************************************************
+     * All fields below this line are not part of the public API. They
+     * may not be used outside of libavfilter and can be changed and
+     * removed at will.
+     * New public fields should be added right above.
+     *****************************************************************
+     */
+
+    /**
+     * The number of entries in the list of inputs.
+     */
+    uint8_t nb_inputs;
+
+    /**
+     * The number of entries in the list of outputs.
+     */
+    uint8_t nb_outputs;
+
+    /**
+     * This field determines the state of the formats union.
+     * It is an enum FilterFormatsState value.
+     */
+    uint8_t formats_state;
+
+    /**
+     * Filter pre-initialization function
+     *
+     * This callback will be called immediately after the filter context is
+     * allocated, to allow allocating and initing sub-objects.
+     *
+     * If this callback is not NULL, the uninit callback will be called on
+     * allocation failure.
+     *
+     * @return 0 on success,
+     *         AVERROR code on failure (but the code will be
+     *           dropped and treated as ENOMEM by the calling code)
+     */
+    int (*preinit)(AVFilterContext *ctx);
+
+    /**
+     * Filter initialization function.
+     *
+     * This callback will be called only once during the filter lifetime, after
+     * all the options have been set, but before links between filters are
+     * established and format negotiation is done.
+     *
+     * Basic filter initialization should be done here. Filters with dynamic
+     * inputs and/or outputs should create those inputs/outputs here based on
+     * provided options. No more changes to this filter's inputs/outputs can be
+     * done after this callback.
+     *
+     * This callback must not assume that the filter links exist or frame
+     * parameters are known.
+     *
+     * @ref AVFilter.uninit "uninit" is guaranteed to be called even if
+     * initialization fails, so this callback does not have to clean up on
+     * failure.
+     *
+     * @return 0 on success, a negative AVERROR on failure
+     */
+    int (*init)(AVFilterContext *ctx);
+
+    /**
+     * Filter uninitialization function.
+     *
+     * Called only once right before the filter is freed. Should deallocate any
+     * memory held by the filter, release any buffer references, etc. It does
+     * not need to deallocate the AVFilterContext.priv memory itself.
+     *
+     * This callback may be called even if @ref AVFilter.init "init" was not
+     * called or failed, so it must be prepared to handle such a situation.
+     */
+    void (*uninit)(AVFilterContext *ctx);
+
+    /**
+     * The state of the following union is determined by formats_state.
+     * See the documentation of enum FilterFormatsState in internal.h.
+     */
+    union {
+        /**
+         * Query formats supported by the filter on its inputs and outputs.
+         *
+         * This callback is called after the filter is initialized (so the inputs
+         * and outputs are fixed), shortly before the format negotiation. This
+         * callback may be called more than once.
+         *
+         * This callback must set ::AVFilterLink's
+         * @ref AVFilterFormatsConfig.formats "outcfg.formats"
+         * on every input link and
+         * @ref AVFilterFormatsConfig.formats "incfg.formats"
+         * on every output link to a list of pixel/sample formats that the filter
+         * supports on that link.
+         * For video links, this filter may also set
+         * @ref AVFilterFormatsConfig.color_spaces "incfg.color_spaces"
+         *  /
+         * @ref AVFilterFormatsConfig.color_spaces "outcfg.color_spaces"
+         * and @ref AVFilterFormatsConfig.color_ranges "incfg.color_ranges"
+         *  /
+         * @ref AVFilterFormatsConfig.color_ranges "outcfg.color_ranges"
+         * analogously.
+         * For audio links, this filter must also set
+         * @ref AVFilterFormatsConfig.samplerates "incfg.samplerates"
+         *  /
+         * @ref AVFilterFormatsConfig.samplerates "outcfg.samplerates"
+         * and @ref AVFilterFormatsConfig.channel_layouts "incfg.channel_layouts"
+         *  /
+         * @ref AVFilterFormatsConfig.channel_layouts "outcfg.channel_layouts"
+         * analogously.
+         *
+         * This callback must never be NULL if the union is in this state.
+         *
+         * @return zero on success, a negative value corresponding to an
+         * AVERROR code otherwise
+         */
+        int (*query_func)(AVFilterContext *);
+
+        /**
+         * Same as query_func(), except this function writes the results into
+         * provided arrays.
+         *
+         * @param cfg_in  array of input format configurations with as many
+         *                members as the filters has inputs (NULL when there are
+         *                no inputs);
+         * @param cfg_out array of output format configurations with as many
+         *                members as the filters has outputs (NULL when there
+         *                are no outputs);
+         */
+        int (*query_func2)(const AVFilterContext *,
+                           struct AVFilterFormatsConfig **cfg_in,
+                           struct AVFilterFormatsConfig **cfg_out);
+        /**
+         * A pointer to an array of admissible pixel formats delimited
+         * by AV_PIX_FMT_NONE. The generic code will use this list
+         * to indicate that this filter supports each of these pixel formats,
+         * provided that all inputs and outputs use the same pixel format.
+         *
+         * In addition to that the generic code will mark all inputs
+         * and all outputs as supporting all color spaces and ranges, as
+         * long as all inputs and outputs use the same color space/range.
+         *
+         * This list must never be NULL if the union is in this state.
+         * The type of all inputs and outputs of filters using this must
+         * be AVMEDIA_TYPE_VIDEO.
+         */
+        const enum AVPixelFormat *pixels_list;
+        /**
+         * Analogous to pixels, but delimited by AV_SAMPLE_FMT_NONE
+         * and restricted to filters that only have AVMEDIA_TYPE_AUDIO
+         * inputs and outputs.
+         *
+         * In addition to that the generic code will mark all inputs
+         * and all outputs as supporting all sample rates and every
+         * channel count and channel layout, as long as all inputs
+         * and outputs use the same sample rate and channel count/layout.
+         */
+        const enum AVSampleFormat *samples_list;
+        /**
+         * Equivalent to { pix_fmt, AV_PIX_FMT_NONE } as pixels_list.
+         */
+        enum AVPixelFormat  pix_fmt;
+        /**
+         * Equivalent to { sample_fmt, AV_SAMPLE_FMT_NONE } as samples_list.
+         */
+        enum AVSampleFormat sample_fmt;
+    } formats;
+
+    int priv_size;      ///< size of private data to allocate for the filter
+
+    int flags_internal; ///< Additional flags for avfilter internal use only.
+
+    /**
+     * Make the filter instance process a command.
+     *
+     * @param cmd    the command to process, for handling simplicity all commands must be alphanumeric only
+     * @param arg    the argument for the command
+     * @param res    a buffer with size res_size where the filter(s) can return a response. This must not change when the command is not supported.
+     * @param flags  if AVFILTER_CMD_FLAG_FAST is set and the command would be
+     *               time consuming then a filter should treat it like an unsupported command
+     *
+     * @returns >=0 on success otherwise an error code.
+     *          AVERROR(ENOSYS) on unsupported commands
+     */
+    int (*process_command)(AVFilterContext *, const char *cmd, const char *arg, char *res, int res_len, int flags);
+
+    /**
+     * Filter activation function.
+     *
+     * Called when any processing is needed from the filter, instead of any
+     * filter_frame and request_frame on pads.
+     *
+     * The function must examine inlinks and outlinks and perform a single
+     * step of processing. If there is nothing to do, the function must do
+     * nothing and not return an error. If more steps are or may be
+     * possible, it must use ff_filter_set_ready() to schedule another
+     * activation.
+     */
+    int (*activate)(AVFilterContext *ctx);
+} AVFilter;
+
+/**
+ * Get the number of elements in an AVFilter's inputs or outputs array.
+ */
+unsigned avfilter_filter_pad_count(const AVFilter *filter, int is_output);
+
+/**
+ * Process multiple parts of the frame concurrently.
+ */
+#define AVFILTER_THREAD_SLICE (1 << 0)
+
+/** An instance of a filter */
+struct AVFilterContext {
+    const AVClass *av_class;        ///< needed for av_log() and filters common options
+
+    const AVFilter *filter;         ///< the AVFilter of which this is an instance
+
+    char *name;                     ///< name of this filter instance
+
+    AVFilterPad   *input_pads;      ///< array of input pads
+    AVFilterLink **inputs;          ///< array of pointers to input links
+    unsigned    nb_inputs;          ///< number of input pads
+
+    AVFilterPad   *output_pads;     ///< array of output pads
+    AVFilterLink **outputs;         ///< array of pointers to output links
+    unsigned    nb_outputs;         ///< number of output pads
+
+    void *priv;                     ///< private data for use by the filter
+
+    struct AVFilterGraph *graph;    ///< filtergraph this filter belongs to
+
+    /**
+     * Type of multithreading being allowed/used. A combination of
+     * AVFILTER_THREAD_* flags.
+     *
+     * May be set by the caller before initializing the filter to forbid some
+     * or all kinds of multithreading for this filter. The default is allowing
+     * everything.
+     *
+     * When the filter is initialized, this field is combined using bit AND with
+     * AVFilterGraph.thread_type to get the final mask used for determining
+     * allowed threading types. I.e. a threading type needs to be set in both
+     * to be allowed.
+     *
+     * After the filter is initialized, libavfilter sets this field to the
+     * threading type that is actually used (0 for no multithreading).
+     */
+    int thread_type;
+
+    /**
+     * Max number of threads allowed in this filter instance.
+     * If <= 0, its value is ignored.
+     * Overrides global number of threads set per filter graph.
+     */
+    int nb_threads;
+
+#if FF_API_CONTEXT_PUBLIC
+    /**
+     * @deprecated unused
+     */
+    attribute_deprecated
+    struct AVFilterCommand *command_queue;
+#endif
+
+    char *enable_str;               ///< enable expression string
+#if FF_API_CONTEXT_PUBLIC
+    /**
+     * @deprecated unused
+     */
+    attribute_deprecated
+    void *enable;
+    /**
+     * @deprecated unused
+     */
+    double *var_values;
+#endif
+    /**
+     * MUST NOT be accessed from outside avfilter.
+     *
+     * the enabled state from the last expression evaluation
+     */
+    int is_disabled;
+
+    /**
+     * For filters which will create hardware frames, sets the device the
+     * filter should create them in.  All other filters will ignore this field:
+     * in particular, a filter which consumes or processes hardware frames will
+     * instead use the hw_frames_ctx field in AVFilterLink to carry the
+     * hardware context information.
+     *
+     * May be set by the caller on filters flagged with AVFILTER_FLAG_HWDEVICE
+     * before initializing the filter with avfilter_init_str() or
+     * avfilter_init_dict().
+     */
+    AVBufferRef *hw_device_ctx;
+
+#if FF_API_CONTEXT_PUBLIC
+    /**
+     * @deprecated this field should never have been accessed by callers
+     */
+    attribute_deprecated
+    unsigned ready;
+#endif
+
+    /**
+     * Sets the number of extra hardware frames which the filter will
+     * allocate on its output links for use in following filters or by
+     * the caller.
+     *
+     * Some hardware filters require all frames that they will use for
+     * output to be defined in advance before filtering starts.  For such
+     * filters, any hardware frame pools used for output must therefore be
+     * of fixed size.  The extra frames set here are on top of any number
+     * that the filter needs internally in order to operate normally.
+     *
+     * This field must be set before the graph containing this filter is
+     * configured.
+     */
+    int extra_hw_frames;
+};
+
+/**
+ * A link between two filters. This contains pointers to the source and
+ * destination filters between which this link exists, and the indexes of
+ * the pads involved. In addition, this link also contains the parameters
+ * which have been negotiated and agreed upon between the filter, such as
+ * image dimensions, format, etc.
+ *
+ * Applications must not normally access the link structure directly.
+ * Use the buffersrc and buffersink API instead.
+ * In the future, access to the header may be reserved for filters
+ * implementation.
+ */
+struct AVFilterLink {
+    AVFilterContext *src;       ///< source filter
+    AVFilterPad *srcpad;        ///< output pad on the source filter
+
+    AVFilterContext *dst;       ///< dest filter
+    AVFilterPad *dstpad;        ///< input pad on the dest filter
+
+    enum AVMediaType type;      ///< filter media type
+
+    int format;                 ///< agreed upon media format
+
+    /* These parameters apply only to video */
+    int w;                      ///< agreed upon image width
+    int h;                      ///< agreed upon image height
+    AVRational sample_aspect_ratio; ///< agreed upon sample aspect ratio
+    /**
+     * For non-YUV links, these are respectively set to fallback values (as
+     * appropriate for that colorspace).
+     *
+     * Note: This includes grayscale formats, as these are currently treated
+     * as forced full range always.
+     */
+    enum AVColorSpace colorspace;   ///< agreed upon YUV color space
+    enum AVColorRange color_range;  ///< agreed upon YUV color range
+
+    /* These parameters apply only to audio */
+    int sample_rate;            ///< samples per second
+    AVChannelLayout ch_layout;  ///< channel layout of current buffer (see libavutil/channel_layout.h)
+
+    /**
+     * Define the time base used by the PTS of the frames/samples
+     * which will pass through this link.
+     * During the configuration stage, each filter is supposed to
+     * change only the output timebase, while the timebase of the
+     * input link is assumed to be an unchangeable property.
+     */
+    AVRational time_base;
+
+    /*****************************************************************
+     * All fields below this line are not part of the public API. They
+     * may not be used outside of libavfilter and can be changed and
+     * removed at will.
+     * New public fields should be added right above.
+     *****************************************************************
+     */
+
+    /**
+     * Lists of supported formats / etc. supported by the input filter.
+     */
+    AVFilterFormatsConfig incfg;
+
+    /**
+     * Lists of supported formats / etc. supported by the output filter.
+     */
+    AVFilterFormatsConfig outcfg;
+};
+
+/**
+ * Link two filters together.
+ *
+ * @param src    the source filter
+ * @param srcpad index of the output pad on the source filter
+ * @param dst    the destination filter
+ * @param dstpad index of the input pad on the destination filter
+ * @return       zero on success
+ */
+int avfilter_link(AVFilterContext *src, unsigned srcpad,
+                  AVFilterContext *dst, unsigned dstpad);
+
+#if FF_API_LINK_PUBLIC
+/**
+ * @deprecated this function should never be called by users
+ */
+attribute_deprecated
+void avfilter_link_free(AVFilterLink **link);
+
+/**
+ * @deprecated this function should never be called by users
+ */
+attribute_deprecated
+int avfilter_config_links(AVFilterContext *filter);
+#endif
+
+#define AVFILTER_CMD_FLAG_ONE   1 ///< Stop once a filter understood the command (for target=all for example), fast filters are favored automatically
+#define AVFILTER_CMD_FLAG_FAST  2 ///< Only execute command when its fast (like a video out that supports contrast adjustment in hw)
+
+/**
+ * Make the filter instance process a command.
+ * It is recommended to use avfilter_graph_send_command().
+ */
+int avfilter_process_command(AVFilterContext *filter, const char *cmd, const char *arg, char *res, int res_len, int flags);
+
+/**
+ * Iterate over all registered filters.
+ *
+ * @param opaque a pointer where libavfilter will store the iteration state. Must
+ *               point to NULL to start the iteration.
+ *
+ * @return the next registered filter or NULL when the iteration is
+ *         finished
+ */
+const AVFilter *av_filter_iterate(void **opaque);
+
+/**
+ * Get a filter definition matching the given name.
+ *
+ * @param name the filter name to find
+ * @return     the filter definition, if any matching one is registered.
+ *             NULL if none found.
+ */
+const AVFilter *avfilter_get_by_name(const char *name);
+
+
+/**
+ * Initialize a filter with the supplied parameters.
+ *
+ * @param ctx  uninitialized filter context to initialize
+ * @param args Options to initialize the filter with. This must be a
+ *             ':'-separated list of options in the 'key=value' form.
+ *             May be NULL if the options have been set directly using the
+ *             AVOptions API or there are no options that need to be set.
+ * @return 0 on success, a negative AVERROR on failure
+ */
+int avfilter_init_str(AVFilterContext *ctx, const char *args);
+
+/**
+ * Initialize a filter with the supplied dictionary of options.
+ *
+ * @param ctx     uninitialized filter context to initialize
+ * @param options An AVDictionary filled with options for this filter. On
+ *                return this parameter will be destroyed and replaced with
+ *                a dict containing options that were not found. This dictionary
+ *                must be freed by the caller.
+ *                May be NULL, then this function is equivalent to
+ *                avfilter_init_str() with the second parameter set to NULL.
+ * @return 0 on success, a negative AVERROR on failure
+ *
+ * @note This function and avfilter_init_str() do essentially the same thing,
+ * the difference is in manner in which the options are passed. It is up to the
+ * calling code to choose whichever is more preferable. The two functions also
+ * behave differently when some of the provided options are not declared as
+ * supported by the filter. In such a case, avfilter_init_str() will fail, but
+ * this function will leave those extra options in the options AVDictionary and
+ * continue as usual.
+ */
+int avfilter_init_dict(AVFilterContext *ctx, AVDictionary **options);
+
+/**
+ * Free a filter context. This will also remove the filter from its
+ * filtergraph's list of filters.
+ *
+ * @param filter the filter to free
+ */
+void avfilter_free(AVFilterContext *filter);
+
+/**
+ * Insert a filter in the middle of an existing link.
+ *
+ * @param link the link into which the filter should be inserted
+ * @param filt the filter to be inserted
+ * @param filt_srcpad_idx the input pad on the filter to connect
+ * @param filt_dstpad_idx the output pad on the filter to connect
+ * @return     zero on success
+ */
+int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt,
+                           unsigned filt_srcpad_idx, unsigned filt_dstpad_idx);
+
+/**
+ * @return AVClass for AVFilterContext.
+ *
+ * @see av_opt_find().
+ */
+const AVClass *avfilter_get_class(void);
+
+/**
+ * A function pointer passed to the @ref AVFilterGraph.execute callback to be
+ * executed multiple times, possibly in parallel.
+ *
+ * @param ctx the filter context the job belongs to
+ * @param arg an opaque parameter passed through from @ref
+ *            AVFilterGraph.execute
+ * @param jobnr the index of the job being executed
+ * @param nb_jobs the total number of jobs
+ *
+ * @return 0 on success, a negative AVERROR on error
+ */
+typedef int (avfilter_action_func)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
+
+/**
+ * A function executing multiple jobs, possibly in parallel.
+ *
+ * @param ctx the filter context to which the jobs belong
+ * @param func the function to be called multiple times
+ * @param arg the argument to be passed to func
+ * @param ret a nb_jobs-sized array to be filled with return values from each
+ *            invocation of func
+ * @param nb_jobs the number of jobs to execute
+ *
+ * @return 0 on success, a negative AVERROR on error
+ */
+typedef int (avfilter_execute_func)(AVFilterContext *ctx, avfilter_action_func *func,
+                                    void *arg, int *ret, int nb_jobs);
+
+typedef struct AVFilterGraph {
+    const AVClass *av_class;
+    AVFilterContext **filters;
+    unsigned nb_filters;
+
+    char *scale_sws_opts; ///< sws options to use for the auto-inserted scale filters
+
+    /**
+     * Type of multithreading allowed for filters in this graph. A combination
+     * of AVFILTER_THREAD_* flags.
+     *
+     * May be set by the caller at any point, the setting will apply to all
+     * filters initialized after that. The default is allowing everything.
+     *
+     * When a filter in this graph is initialized, this field is combined using
+     * bit AND with AVFilterContext.thread_type to get the final mask used for
+     * determining allowed threading types. I.e. a threading type needs to be
+     * set in both to be allowed.
+     */
+    int thread_type;
+
+    /**
+     * Maximum number of threads used by filters in this graph. May be set by
+     * the caller before adding any filters to the filtergraph. Zero (the
+     * default) means that the number of threads is determined automatically.
+     */
+    int nb_threads;
+
+    /**
+     * Opaque user data. May be set by the caller to an arbitrary value, e.g. to
+     * be used from callbacks like @ref AVFilterGraph.execute.
+     * Libavfilter will not touch this field in any way.
+     */
+    void *opaque;
+
+    /**
+     * This callback may be set by the caller immediately after allocating the
+     * graph and before adding any filters to it, to provide a custom
+     * multithreading implementation.
+     *
+     * If set, filters with slice threading capability will call this callback
+     * to execute multiple jobs in parallel.
+     *
+     * If this field is left unset, libavfilter will use its internal
+     * implementation, which may or may not be multithreaded depending on the
+     * platform and build options.
+     */
+    avfilter_execute_func *execute;
+
+    char *aresample_swr_opts; ///< swr options to use for the auto-inserted aresample filters, Access ONLY through AVOptions
+} AVFilterGraph;
+
+/**
+ * Allocate a filter graph.
+ *
+ * @return the allocated filter graph on success or NULL.
+ */
+AVFilterGraph *avfilter_graph_alloc(void);
+
+/**
+ * Create a new filter instance in a filter graph.
+ *
+ * @param graph graph in which the new filter will be used
+ * @param filter the filter to create an instance of
+ * @param name Name to give to the new instance (will be copied to
+ *             AVFilterContext.name). This may be used by the caller to identify
+ *             different filters, libavfilter itself assigns no semantics to
+ *             this parameter. May be NULL.
+ *
+ * @return the context of the newly created filter instance (note that it is
+ *         also retrievable directly through AVFilterGraph.filters or with
+ *         avfilter_graph_get_filter()) on success or NULL on failure.
+ */
+AVFilterContext *avfilter_graph_alloc_filter(AVFilterGraph *graph,
+                                             const AVFilter *filter,
+                                             const char *name);
+
+/**
+ * Get a filter instance identified by instance name from graph.
+ *
+ * @param graph filter graph to search through.
+ * @param name filter instance name (should be unique in the graph).
+ * @return the pointer to the found filter instance or NULL if it
+ * cannot be found.
+ */
+AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, const char *name);
+
+/**
+ * A convenience wrapper that allocates and initializes a filter in a single
+ * step. The filter instance is created from the filter filt and inited with the
+ * parameter args. opaque is currently ignored.
+ *
+ * In case of success put in *filt_ctx the pointer to the created
+ * filter instance, otherwise set *filt_ctx to NULL.
+ *
+ * @param name the instance name to give to the created filter instance
+ * @param graph_ctx the filter graph
+ * @return a negative AVERROR error code in case of failure, a non
+ * negative value otherwise
+ *
+ * @warning Since the filter is initialized after this function successfully
+ *          returns, you MUST NOT set any further options on it. If you need to
+ *          do that, call ::avfilter_graph_alloc_filter(), followed by setting
+ *          the options, followed by ::avfilter_init_dict() instead of this
+ *          function.
+ */
+int avfilter_graph_create_filter(AVFilterContext **filt_ctx, const AVFilter *filt,
+                                 const char *name, const char *args, void *opaque,
+                                 AVFilterGraph *graph_ctx);
+
+/**
+ * Enable or disable automatic format conversion inside the graph.
+ *
+ * Note that format conversion can still happen inside explicitly inserted
+ * scale and aresample filters.
+ *
+ * @param flags  any of the AVFILTER_AUTO_CONVERT_* constants
+ */
+void avfilter_graph_set_auto_convert(AVFilterGraph *graph, unsigned flags);
+
+enum {
+    AVFILTER_AUTO_CONVERT_ALL  =  0, /**< all automatic conversions enabled */
+    AVFILTER_AUTO_CONVERT_NONE = -1, /**< all automatic conversions disabled */
+};
+
+/**
+ * Check validity and configure all the links and formats in the graph.
+ *
+ * @param graphctx the filter graph
+ * @param log_ctx context used for logging
+ * @return >= 0 in case of success, a negative AVERROR code otherwise
+ */
+int avfilter_graph_config(AVFilterGraph *graphctx, void *log_ctx);
+
+/**
+ * Free a graph, destroy its links, and set *graph to NULL.
+ * If *graph is NULL, do nothing.
+ */
+void avfilter_graph_free(AVFilterGraph **graph);
+
+/**
+ * A linked-list of the inputs/outputs of the filter chain.
+ *
+ * This is mainly useful for avfilter_graph_parse() / avfilter_graph_parse2(),
+ * where it is used to communicate open (unlinked) inputs and outputs from and
+ * to the caller.
+ * This struct specifies, per each not connected pad contained in the graph, the
+ * filter context and the pad index required for establishing a link.
+ */
+typedef struct AVFilterInOut {
+    /** unique name for this input/output in the list */
+    char *name;
+
+    /** filter context associated to this input/output */
+    AVFilterContext *filter_ctx;
+
+    /** index of the filt_ctx pad to use for linking */
+    int pad_idx;
+
+    /** next input/input in the list, NULL if this is the last */
+    struct AVFilterInOut *next;
+} AVFilterInOut;
+
+/**
+ * Allocate a single AVFilterInOut entry.
+ * Must be freed with avfilter_inout_free().
+ * @return allocated AVFilterInOut on success, NULL on failure.
+ */
+AVFilterInOut *avfilter_inout_alloc(void);
+
+/**
+ * Free the supplied list of AVFilterInOut and set *inout to NULL.
+ * If *inout is NULL, do nothing.
+ */
+void avfilter_inout_free(AVFilterInOut **inout);
+
+/**
+ * Add a graph described by a string to a graph.
+ *
+ * @note The caller must provide the lists of inputs and outputs,
+ * which therefore must be known before calling the function.
+ *
+ * @note The inputs parameter describes inputs of the already existing
+ * part of the graph; i.e. from the point of view of the newly created
+ * part, they are outputs. Similarly the outputs parameter describes
+ * outputs of the already existing filters, which are provided as
+ * inputs to the parsed filters.
+ *
+ * @param graph   the filter graph where to link the parsed graph context
+ * @param filters string to be parsed
+ * @param inputs  linked list to the inputs of the graph
+ * @param outputs linked list to the outputs of the graph
+ * @return zero on success, a negative AVERROR code on error
+ */
+int avfilter_graph_parse(AVFilterGraph *graph, const char *filters,
+                         AVFilterInOut *inputs, AVFilterInOut *outputs,
+                         void *log_ctx);
+
+/**
+ * Add a graph described by a string to a graph.
+ *
+ * In the graph filters description, if the input label of the first
+ * filter is not specified, "in" is assumed; if the output label of
+ * the last filter is not specified, "out" is assumed.
+ *
+ * @param graph   the filter graph where to link the parsed graph context
+ * @param filters string to be parsed
+ * @param inputs  pointer to a linked list to the inputs of the graph, may be NULL.
+ *                If non-NULL, *inputs is updated to contain the list of open inputs
+ *                after the parsing, should be freed with avfilter_inout_free().
+ * @param outputs pointer to a linked list to the outputs of the graph, may be NULL.
+ *                If non-NULL, *outputs is updated to contain the list of open outputs
+ *                after the parsing, should be freed with avfilter_inout_free().
+ * @return non negative on success, a negative AVERROR code on error
+ */
+int avfilter_graph_parse_ptr(AVFilterGraph *graph, const char *filters,
+                             AVFilterInOut **inputs, AVFilterInOut **outputs,
+                             void *log_ctx);
+
+/**
+ * Add a graph described by a string to a graph.
+ *
+ * @param[in]  graph   the filter graph where to link the parsed graph context
+ * @param[in]  filters string to be parsed
+ * @param[out] inputs  a linked list of all free (unlinked) inputs of the
+ *                     parsed graph will be returned here. It is to be freed
+ *                     by the caller using avfilter_inout_free().
+ * @param[out] outputs a linked list of all free (unlinked) outputs of the
+ *                     parsed graph will be returned here. It is to be freed by the
+ *                     caller using avfilter_inout_free().
+ * @return zero on success, a negative AVERROR code on error
+ *
+ * @note This function returns the inputs and outputs that are left
+ * unlinked after parsing the graph and the caller then deals with
+ * them.
+ * @note This function makes no reference whatsoever to already
+ * existing parts of the graph and the inputs parameter will on return
+ * contain inputs of the newly parsed part of the graph.  Analogously
+ * the outputs parameter will contain outputs of the newly created
+ * filters.
+ */
+int avfilter_graph_parse2(AVFilterGraph *graph, const char *filters,
+                          AVFilterInOut **inputs,
+                          AVFilterInOut **outputs);
+
+/**
+ * Parameters of a filter's input or output pad.
+ *
+ * Created as a child of AVFilterParams by avfilter_graph_segment_parse().
+ * Freed in avfilter_graph_segment_free().
+ */
+typedef struct AVFilterPadParams {
+    /**
+     * An av_malloc()'ed string containing the pad label.
+     *
+     * May be av_free()'d and set to NULL by the caller, in which case this pad
+     * will be treated as unlabeled for linking.
+     * May also be replaced by another av_malloc()'ed string.
+     */
+    char *label;
+} AVFilterPadParams;
+
+/**
+ * Parameters describing a filter to be created in a filtergraph.
+ *
+ * Created as a child of AVFilterGraphSegment by avfilter_graph_segment_parse().
+ * Freed in avfilter_graph_segment_free().
+ */
+typedef struct AVFilterParams {
+    /**
+     * The filter context.
+     *
+     * Created by avfilter_graph_segment_create_filters() based on
+     * AVFilterParams.filter_name and instance_name.
+     *
+     * Callers may also create the filter context manually, then they should
+     * av_free() filter_name and set it to NULL. Such AVFilterParams instances
+     * are then skipped by avfilter_graph_segment_create_filters().
+     */
+    AVFilterContext     *filter;
+
+    /**
+     * Name of the AVFilter to be used.
+     *
+     * An av_malloc()'ed string, set by avfilter_graph_segment_parse(). Will be
+     * passed to avfilter_get_by_name() by
+     * avfilter_graph_segment_create_filters().
+     *
+     * Callers may av_free() this string and replace it with another one or
+     * NULL. If the caller creates the filter instance manually, this string
+     * MUST be set to NULL.
+     *
+     * When both AVFilterParams.filter an AVFilterParams.filter_name are NULL,
+     * this AVFilterParams instance is skipped by avfilter_graph_segment_*()
+     * functions.
+     */
+    char                *filter_name;
+    /**
+     * Name to be used for this filter instance.
+     *
+     * An av_malloc()'ed string, may be set by avfilter_graph_segment_parse() or
+     * left NULL. The caller may av_free() this string and replace with another
+     * one or NULL.
+     *
+     * Will be used by avfilter_graph_segment_create_filters() - passed as the
+     * third argument to avfilter_graph_alloc_filter(), then freed and set to
+     * NULL.
+     */
+    char                *instance_name;
+
+    /**
+     * Options to be apllied to the filter.
+     *
+     * Filled by avfilter_graph_segment_parse(). Afterwards may be freely
+     * modified by the caller.
+     *
+     * Will be applied to the filter by avfilter_graph_segment_apply_opts()
+     * with an equivalent of av_opt_set_dict2(filter, &opts, AV_OPT_SEARCH_CHILDREN),
+     * i.e. any unapplied options will be left in this dictionary.
+     */
+    AVDictionary        *opts;
+
+    AVFilterPadParams  **inputs;
+    unsigned          nb_inputs;
+
+    AVFilterPadParams  **outputs;
+    unsigned          nb_outputs;
+} AVFilterParams;
+
+/**
+ * A filterchain is a list of filter specifications.
+ *
+ * Created as a child of AVFilterGraphSegment by avfilter_graph_segment_parse().
+ * Freed in avfilter_graph_segment_free().
+ */
+typedef struct AVFilterChain {
+    AVFilterParams  **filters;
+    size_t         nb_filters;
+} AVFilterChain;
+
+/**
+ * A parsed representation of a filtergraph segment.
+ *
+ * A filtergraph segment is conceptually a list of filterchains, with some
+ * supplementary information (e.g. format conversion flags).
+ *
+ * Created by avfilter_graph_segment_parse(). Must be freed with
+ * avfilter_graph_segment_free().
+ */
+typedef struct AVFilterGraphSegment {
+    /**
+     * The filtergraph this segment is associated with.
+     * Set by avfilter_graph_segment_parse().
+     */
+    AVFilterGraph *graph;
+
+    /**
+     * A list of filter chain contained in this segment.
+     * Set in avfilter_graph_segment_parse().
+     */
+    AVFilterChain **chains;
+    size_t       nb_chains;
+
+    /**
+     * A string containing a colon-separated list of key=value options applied
+     * to all scale filters in this segment.
+     *
+     * May be set by avfilter_graph_segment_parse().
+     * The caller may free this string with av_free() and replace it with a
+     * different av_malloc()'ed string.
+     */
+    char *scale_sws_opts;
+} AVFilterGraphSegment;
+
+/**
+ * Parse a textual filtergraph description into an intermediate form.
+ *
+ * This intermediate representation is intended to be modified by the caller as
+ * described in the documentation of AVFilterGraphSegment and its children, and
+ * then applied to the graph either manually or with other
+ * avfilter_graph_segment_*() functions. See the documentation for
+ * avfilter_graph_segment_apply() for the canonical way to apply
+ * AVFilterGraphSegment.
+ *
+ * @param graph Filter graph the parsed segment is associated with. Will only be
+ *              used for logging and similar auxiliary purposes. The graph will
+ *              not be actually modified by this function - the parsing results
+ *              are instead stored in seg for further processing.
+ * @param graph_str a string describing the filtergraph segment
+ * @param flags reserved for future use, caller must set to 0 for now
+ * @param seg A pointer to the newly-created AVFilterGraphSegment is written
+ *            here on success. The graph segment is owned by the caller and must
+ *            be freed with avfilter_graph_segment_free() before graph itself is
+ *            freed.
+ *
+ * @retval "non-negative number" success
+ * @retval "negative error code" failure
+ */
+int avfilter_graph_segment_parse(AVFilterGraph *graph, const char *graph_str,
+                                 int flags, AVFilterGraphSegment **seg);
+
+/**
+ * Create filters specified in a graph segment.
+ *
+ * Walk through the creation-pending AVFilterParams in the segment and create
+ * new filter instances for them.
+ * Creation-pending params are those where AVFilterParams.filter_name is
+ * non-NULL (and hence AVFilterParams.filter is NULL). All other AVFilterParams
+ * instances are ignored.
+ *
+ * For any filter created by this function, the corresponding
+ * AVFilterParams.filter is set to the newly-created filter context,
+ * AVFilterParams.filter_name and AVFilterParams.instance_name are freed and set
+ * to NULL.
+ *
+ * @param seg the filtergraph segment to process
+ * @param flags reserved for future use, caller must set to 0 for now
+ *
+ * @retval "non-negative number" Success, all creation-pending filters were
+ *                               successfully created
+ * @retval AVERROR_FILTER_NOT_FOUND some filter's name did not correspond to a
+ *                                  known filter
+ * @retval "another negative error code" other failures
+ *
+ * @note Calling this function multiple times is safe, as it is idempotent.
+ */
+int avfilter_graph_segment_create_filters(AVFilterGraphSegment *seg, int flags);
+
+/**
+ * Apply parsed options to filter instances in a graph segment.
+ *
+ * Walk through all filter instances in the graph segment that have option
+ * dictionaries associated with them and apply those options with
+ * av_opt_set_dict2(..., AV_OPT_SEARCH_CHILDREN). AVFilterParams.opts is
+ * replaced by the dictionary output by av_opt_set_dict2(), which should be
+ * empty (NULL) if all options were successfully applied.
+ *
+ * If any options could not be found, this function will continue processing all
+ * other filters and finally return AVERROR_OPTION_NOT_FOUND (unless another
+ * error happens). The calling program may then deal with unapplied options as
+ * it wishes.
+ *
+ * Any creation-pending filters (see avfilter_graph_segment_create_filters())
+ * present in the segment will cause this function to fail. AVFilterParams with
+ * no associated filter context are simply skipped.
+ *
+ * @param seg the filtergraph segment to process
+ * @param flags reserved for future use, caller must set to 0 for now
+ *
+ * @retval "non-negative number" Success, all options were successfully applied.
+ * @retval AVERROR_OPTION_NOT_FOUND some options were not found in a filter
+ * @retval "another negative error code" other failures
+ *
+ * @note Calling this function multiple times is safe, as it is idempotent.
+ */
+int avfilter_graph_segment_apply_opts(AVFilterGraphSegment *seg, int flags);
+
+/**
+ * Initialize all filter instances in a graph segment.
+ *
+ * Walk through all filter instances in the graph segment and call
+ * avfilter_init_dict(..., NULL) on those that have not been initialized yet.
+ *
+ * Any creation-pending filters (see avfilter_graph_segment_create_filters())
+ * present in the segment will cause this function to fail. AVFilterParams with
+ * no associated filter context or whose filter context is already initialized,
+ * are simply skipped.
+ *
+ * @param seg the filtergraph segment to process
+ * @param flags reserved for future use, caller must set to 0 for now
+ *
+ * @retval "non-negative number" Success, all filter instances were successfully
+ *                               initialized
+ * @retval "negative error code" failure
+ *
+ * @note Calling this function multiple times is safe, as it is idempotent.
+ */
+int avfilter_graph_segment_init(AVFilterGraphSegment *seg, int flags);
+
+/**
+ * Link filters in a graph segment.
+ *
+ * Walk through all filter instances in the graph segment and try to link all
+ * unlinked input and output pads. Any creation-pending filters (see
+ * avfilter_graph_segment_create_filters()) present in the segment will cause
+ * this function to fail. Disabled filters and already linked pads are skipped.
+ *
+ * Every filter output pad that has a corresponding AVFilterPadParams with a
+ * non-NULL label is
+ * - linked to the input with the matching label, if one exists;
+ * - exported in the outputs linked list otherwise, with the label preserved.
+ * Unlabeled outputs are
+ * - linked to the first unlinked unlabeled input in the next non-disabled
+ *   filter in the chain, if one exists
+ * - exported in the ouputs linked list otherwise, with NULL label
+ *
+ * Similarly, unlinked input pads are exported in the inputs linked list.
+ *
+ * @param seg the filtergraph segment to process
+ * @param flags reserved for future use, caller must set to 0 for now
+ * @param[out] inputs  a linked list of all free (unlinked) inputs of the
+ *                     filters in this graph segment will be returned here. It
+ *                     is to be freed by the caller using avfilter_inout_free().
+ * @param[out] outputs a linked list of all free (unlinked) outputs of the
+ *                     filters in this graph segment will be returned here. It
+ *                     is to be freed by the caller using avfilter_inout_free().
+ *
+ * @retval "non-negative number" success
+ * @retval "negative error code" failure
+ *
+ * @note Calling this function multiple times is safe, as it is idempotent.
+ */
+int avfilter_graph_segment_link(AVFilterGraphSegment *seg, int flags,
+                                AVFilterInOut **inputs,
+                                AVFilterInOut **outputs);
+
+/**
+ * Apply all filter/link descriptions from a graph segment to the associated filtergraph.
+ *
+ * This functions is currently equivalent to calling the following in sequence:
+ * - avfilter_graph_segment_create_filters();
+ * - avfilter_graph_segment_apply_opts();
+ * - avfilter_graph_segment_init();
+ * - avfilter_graph_segment_link();
+ * failing if any of them fails. This list may be extended in the future.
+ *
+ * Since the above functions are idempotent, the caller may call some of them
+ * manually, then do some custom processing on the filtergraph, then call this
+ * function to do the rest.
+ *
+ * @param seg the filtergraph segment to process
+ * @param flags reserved for future use, caller must set to 0 for now
+ * @param[out] inputs passed to avfilter_graph_segment_link()
+ * @param[out] outputs passed to avfilter_graph_segment_link()
+ *
+ * @retval "non-negative number" success
+ * @retval "negative error code" failure
+ *
+ * @note Calling this function multiple times is safe, as it is idempotent.
+ */
+int avfilter_graph_segment_apply(AVFilterGraphSegment *seg, int flags,
+                                 AVFilterInOut **inputs,
+                                 AVFilterInOut **outputs);
+
+/**
+ * Free the provided AVFilterGraphSegment and everything associated with it.
+ *
+ * @param seg double pointer to the AVFilterGraphSegment to be freed. NULL will
+ * be written to this pointer on exit from this function.
+ *
+ * @note
+ * The filter contexts (AVFilterParams.filter) are owned by AVFilterGraph rather
+ * than AVFilterGraphSegment, so they are not freed.
+ */
+void avfilter_graph_segment_free(AVFilterGraphSegment **seg);
+
+/**
+ * Send a command to one or more filter instances.
+ *
+ * @param graph  the filter graph
+ * @param target the filter(s) to which the command should be sent
+ *               "all" sends to all filters
+ *               otherwise it can be a filter or filter instance name
+ *               which will send the command to all matching filters.
+ * @param cmd    the command to send, for handling simplicity all commands must be alphanumeric only
+ * @param arg    the argument for the command
+ * @param res    a buffer with size res_size where the filter(s) can return a response.
+ *
+ * @returns >=0 on success otherwise an error code.
+ *              AVERROR(ENOSYS) on unsupported commands
+ */
+int avfilter_graph_send_command(AVFilterGraph *graph, const char *target, const char *cmd, const char *arg, char *res, int res_len, int flags);
+
+/**
+ * Queue a command for one or more filter instances.
+ *
+ * @param graph  the filter graph
+ * @param target the filter(s) to which the command should be sent
+ *               "all" sends to all filters
+ *               otherwise it can be a filter or filter instance name
+ *               which will send the command to all matching filters.
+ * @param cmd    the command to sent, for handling simplicity all commands must be alphanumeric only
+ * @param arg    the argument for the command
+ * @param ts     time at which the command should be sent to the filter
+ *
+ * @note As this executes commands after this function returns, no return code
+ *       from the filter is provided, also AVFILTER_CMD_FLAG_ONE is not supported.
+ */
+int avfilter_graph_queue_command(AVFilterGraph *graph, const char *target, const char *cmd, const char *arg, int flags, double ts);
+
+
+/**
+ * Dump a graph into a human-readable string representation.
+ *
+ * @param graph    the graph to dump
+ * @param options  formatting options; currently ignored
+ * @return  a string, or NULL in case of memory allocation failure;
+ *          the string must be freed using av_free
+ */
+char *avfilter_graph_dump(AVFilterGraph *graph, const char *options);
+
+/**
+ * Request a frame on the oldest sink link.
+ *
+ * If the request returns AVERROR_EOF, try the next.
+ *
+ * Note that this function is not meant to be the sole scheduling mechanism
+ * of a filtergraph, only a convenience function to help drain a filtergraph
+ * in a balanced way under normal circumstances.
+ *
+ * Also note that AVERROR_EOF does not mean that frames did not arrive on
+ * some of the sinks during the process.
+ * When there are multiple sink links, in case the requested link
+ * returns an EOF, this may cause a filter to flush pending frames
+ * which are sent to another sink link, although unrequested.
+ *
+ * @return  the return value of ff_request_frame(),
+ *          or AVERROR_EOF if all links returned AVERROR_EOF
+ */
+int avfilter_graph_request_oldest(AVFilterGraph *graph);
+
+/**
+ * @}
+ */
+
+#endif /* AVFILTER_AVFILTER_H */

ffmpeg/include/libavfilter/buffersink.h

@@ -0,0 +1,166 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFILTER_BUFFERSINK_H
+#define AVFILTER_BUFFERSINK_H
+
+/**
+ * @file
+ * @ingroup lavfi_buffersink
+ * memory buffer sink API for audio and video
+ */
+
+#include "avfilter.h"
+
+/**
+ * @defgroup lavfi_buffersink Buffer sink API
+ * @ingroup lavfi
+ * @{
+ *
+ * The buffersink and abuffersink filters are there to connect filter graphs
+ * to applications. They have a single input, connected to the graph, and no
+ * output. Frames must be extracted using av_buffersink_get_frame() or
+ * av_buffersink_get_samples().
+ *
+ * The format negotiated by the graph during configuration can be obtained
+ * using the accessor functions:
+ * - av_buffersink_get_time_base(),
+ * - av_buffersink_get_format(),
+ * - av_buffersink_get_frame_rate(),
+ * - av_buffersink_get_w(),
+ * - av_buffersink_get_h(),
+ * - av_buffersink_get_sample_aspect_ratio(),
+ * - av_buffersink_get_channels(),
+ * - av_buffersink_get_ch_layout(),
+ * - av_buffersink_get_sample_rate().
+ *
+ * The layout returned by av_buffersink_get_ch_layout() must de uninitialized
+ * by the caller.
+ *
+ * The format can be constrained by setting options, using av_opt_set() and
+ * related functions with the AV_OPT_SEARCH_CHILDREN flag.
+ *  - pixel_formats (array of pixel formats),
+ *  - colorspaces (array of int),
+ *  - colorranges (array of int),
+ *  - sample_formats (array of sample formats),
+ *  - samplerates (array of int),
+ *  - channel_layouts (array of channel layouts)
+ * If an option is not set, all corresponding formats are accepted.
+ */
+
+/**
+ * Get a frame with filtered data from sink and put it in frame.
+ *
+ * @param ctx    pointer to a buffersink or abuffersink filter context.
+ * @param frame  pointer to an allocated frame that will be filled with data.
+ *               The data must be freed using av_frame_unref() / av_frame_free()
+ * @param flags  a combination of AV_BUFFERSINK_FLAG_* flags
+ *
+ * @return  >= 0 in for success, a negative AVERROR code for failure.
+ */
+int av_buffersink_get_frame_flags(AVFilterContext *ctx, AVFrame *frame, int flags);
+
+/**
+ * Tell av_buffersink_get_buffer_ref() to read video/samples buffer
+ * reference, but not remove it from the buffer. This is useful if you
+ * need only to read a video/samples buffer, without to fetch it.
+ */
+#define AV_BUFFERSINK_FLAG_PEEK 1
+
+/**
+ * Tell av_buffersink_get_buffer_ref() not to request a frame from its input.
+ * If a frame is already buffered, it is read (and removed from the buffer),
+ * but if no frame is present, return AVERROR(EAGAIN).
+ */
+#define AV_BUFFERSINK_FLAG_NO_REQUEST 2
+
+/**
+ * Set the frame size for an audio buffer sink.
+ *
+ * All calls to av_buffersink_get_buffer_ref will return a buffer with
+ * exactly the specified number of samples, or AVERROR(EAGAIN) if there is
+ * not enough. The last buffer at EOF will be padded with 0.
+ */
+void av_buffersink_set_frame_size(AVFilterContext *ctx, unsigned frame_size);
+
+/**
+ * @defgroup lavfi_buffersink_accessors Buffer sink accessors
+ * Get the properties of the stream
+ * @{
+ */
+
+enum AVMediaType av_buffersink_get_type                (const AVFilterContext *ctx);
+AVRational       av_buffersink_get_time_base           (const AVFilterContext *ctx);
+int              av_buffersink_get_format              (const AVFilterContext *ctx);
+
+AVRational       av_buffersink_get_frame_rate          (const AVFilterContext *ctx);
+int              av_buffersink_get_w                   (const AVFilterContext *ctx);
+int              av_buffersink_get_h                   (const AVFilterContext *ctx);
+AVRational       av_buffersink_get_sample_aspect_ratio (const AVFilterContext *ctx);
+enum AVColorSpace av_buffersink_get_colorspace         (const AVFilterContext *ctx);
+enum AVColorRange av_buffersink_get_color_range        (const AVFilterContext *ctx);
+
+int              av_buffersink_get_channels            (const AVFilterContext *ctx);
+int              av_buffersink_get_ch_layout           (const AVFilterContext *ctx,
+                                                        AVChannelLayout *ch_layout);
+int              av_buffersink_get_sample_rate         (const AVFilterContext *ctx);
+
+AVBufferRef *    av_buffersink_get_hw_frames_ctx       (const AVFilterContext *ctx);
+
+/** @} */
+
+/**
+ * Get a frame with filtered data from sink and put it in frame.
+ *
+ * @param ctx pointer to a context of a buffersink or abuffersink AVFilter.
+ * @param frame pointer to an allocated frame that will be filled with data.
+ *              The data must be freed using av_frame_unref() / av_frame_free()
+ *
+ * @return
+ *         - >= 0 if a frame was successfully returned.
+ *         - AVERROR(EAGAIN) if no frames are available at this point; more
+ *           input frames must be added to the filtergraph to get more output.
+ *         - AVERROR_EOF if there will be no more output frames on this sink.
+ *         - A different negative AVERROR code in other failure cases.
+ */
+int av_buffersink_get_frame(AVFilterContext *ctx, AVFrame *frame);
+
+/**
+ * Same as av_buffersink_get_frame(), but with the ability to specify the number
+ * of samples read. This function is less efficient than
+ * av_buffersink_get_frame(), because it copies the data around.
+ *
+ * @param ctx pointer to a context of the abuffersink AVFilter.
+ * @param frame pointer to an allocated frame that will be filled with data.
+ *              The data must be freed using av_frame_unref() / av_frame_free()
+ *              frame will contain exactly nb_samples audio samples, except at
+ *              the end of stream, when it can contain less than nb_samples.
+ *
+ * @return The return codes have the same meaning as for
+ *         av_buffersink_get_frame().
+ *
+ * @warning do not mix this function with av_buffersink_get_frame(). Use only one or
+ * the other with a single sink, not both.
+ */
+int av_buffersink_get_samples(AVFilterContext *ctx, AVFrame *frame, int nb_samples);
+
+/**
+ * @}
+ */
+
+#endif /* AVFILTER_BUFFERSINK_H */