| cimport libav as lib | |
| from libc.stdint cimport uint8_t | |
| from uuid import uuid4 | |
| cdef void key_free(void *opaque, uint8_t *data) noexcept nogil: | |
| cdef char *name = <char *>data | |
| with gil: | |
| opaque_container.pop(name) | |
| cdef class OpaqueContainer: | |
| """A container that holds references to Python objects, indexed by uuid""" | |
| def __cinit__(self): | |
| self._by_name = {} | |
| cdef lib.AVBufferRef *add(self, v): | |
| cdef bytes uuid = str(uuid4()).encode("utf-8") | |
| cdef lib.AVBufferRef *ref = lib.av_buffer_create(uuid, len(uuid), &key_free, NULL, 0) | |
| self._by_name[uuid] = v | |
| return ref | |
| cdef object get(self, bytes name): | |
| return self._by_name.get(name) | |
| cdef object pop(self, bytes name): | |
| return self._by_name.pop(name) | |
| cdef opaque_container = OpaqueContainer() | |