| import sys |
| from enum import IntEnum |
|
|
| from libc.stdint cimport uint8_t |
|
|
| from av.error cimport err_check |
| from av.sidedata.sidedata cimport get_display_rotation |
| from av.utils cimport check_ndarray |
| from av.video.format cimport get_pix_fmt, get_video_format |
| from av.video.plane cimport VideoPlane |
|
|
|
|
| cdef object _cinit_bypass_sentinel |
|
|
| |
| supported_np_pix_fmts = { |
| "abgr", "argb", "bayer_bggr16be", "bayer_bggr16le", "bayer_bggr8", "bayer_gbrg16be", |
| "bayer_gbrg16le", "bayer_gbrg8", "bayer_grbg16be", "bayer_grbg16le", "bayer_grbg8", |
| "bayer_rggb16be", "bayer_rggb16le", "bayer_rggb8", "bgr24", "bgr8", "bgra", |
| "gbrapf32be", "gbrapf32le", "gbrp", "gbrp10be", "gbrp10le", "gbrp12be", "gbrp12le", |
| "gbrp14be", "gbrp14le", "gbrp16be", "gbrp16le", "gbrpf32be", "gbrpf32le", "gray", |
| "gray16be", "gray16le", "gray8", "grayf32be", "grayf32le", "nv12", "pal8", "rgb24", |
| "rgb48be", "rgb48le", "rgb8", "rgba", "rgba64be", "rgba64le", "yuv420p", |
| "yuv422p10le", "yuv444p", "yuv444p16be", "yuv444p16le", "yuva444p16be", |
| "yuva444p16le", "yuvj420p", "yuvj444p", "yuyv422", |
| } |
|
|
| cdef VideoFrame alloc_video_frame(): |
| """Get a mostly uninitialized VideoFrame. |
| |
| You MUST call VideoFrame._init(...) or VideoFrame._init_user_attributes() |
| before exposing to the user. |
| |
| """ |
| return VideoFrame.__new__(VideoFrame, _cinit_bypass_sentinel) |
|
|
| class PictureType(IntEnum): |
| NONE = lib.AV_PICTURE_TYPE_NONE |
| I = lib.AV_PICTURE_TYPE_I |
| P = lib.AV_PICTURE_TYPE_P |
| B = lib.AV_PICTURE_TYPE_B |
| S = lib.AV_PICTURE_TYPE_S |
| SI = lib.AV_PICTURE_TYPE_SI |
| SP = lib.AV_PICTURE_TYPE_SP |
| BI = lib.AV_PICTURE_TYPE_BI |
|
|
| cdef byteswap_array(array, bint big_endian): |
| if (sys.byteorder == "big") != big_endian: |
| return array.byteswap() |
| else: |
| return array |
|
|
|
|
| cdef copy_bytes_to_plane(img_bytes, VideoPlane plane, unsigned int bytes_per_pixel, bint flip_horizontal, bint flip_vertical): |
| cdef const uint8_t[:] i_buf = img_bytes |
| cdef size_t i_pos = 0 |
| cdef size_t i_stride = plane.width * bytes_per_pixel |
| cdef size_t i_size = plane.height * i_stride |
|
|
| cdef uint8_t[:] o_buf = plane |
| cdef size_t o_pos = 0 |
| cdef size_t o_stride = abs(plane.line_size) |
|
|
| cdef int start_row, end_row, step |
| if flip_vertical: |
| start_row = plane.height - 1 |
| end_row = -1 |
| step = -1 |
| else: |
| start_row = 0 |
| end_row = plane.height |
| step = 1 |
|
|
| cdef int i, j |
| for row in range(start_row, end_row, step): |
| i_pos = row * i_stride |
| if flip_horizontal: |
| for i in range(0, i_stride, bytes_per_pixel): |
| for j in range(bytes_per_pixel): |
| o_buf[o_pos + i + j] = i_buf[i_pos + i_stride - i - bytes_per_pixel + j] |
| else: |
| o_buf[o_pos:o_pos + i_stride] = i_buf[i_pos:i_pos + i_stride] |
| o_pos += o_stride |
|
|
|
|
| cdef copy_array_to_plane(array, VideoPlane plane, unsigned int bytes_per_pixel): |
| cdef bytes imgbytes = array.tobytes() |
| copy_bytes_to_plane(imgbytes, plane, bytes_per_pixel, False, False) |
|
|
|
|
| cdef useful_array(VideoPlane plane, unsigned int bytes_per_pixel=1, str dtype="uint8"): |
| """ |
| Return the useful part of the VideoPlane as a single dimensional array. |
| |
| We are simply discarding any padding which was added for alignment. |
| """ |
| import numpy as np |
| cdef size_t total_line_size = abs(plane.line_size) |
| cdef size_t useful_line_size = plane.width * bytes_per_pixel |
| arr = np.frombuffer(plane, np.uint8) |
| if total_line_size != useful_line_size: |
| arr = arr.reshape(-1, total_line_size)[:, 0:useful_line_size].reshape(-1) |
| return arr.view(np.dtype(dtype)) |
|
|
|
|
| cdef check_ndarray_shape(object array, bint ok): |
| if not ok: |
| raise ValueError(f"Unexpected numpy array shape `{array.shape}`") |
|
|
|
|
| cdef class VideoFrame(Frame): |
| def __cinit__(self, width=0, height=0, format="yuv420p"): |
| if width is _cinit_bypass_sentinel: |
| return |
|
|
| cdef lib.AVPixelFormat c_format = get_pix_fmt(format) |
|
|
| self._init(c_format, width, height) |
|
|
| cdef _init(self, lib.AVPixelFormat format, unsigned int width, unsigned int height): |
| cdef int res = 0 |
|
|
| with nogil: |
| self.ptr.width = width |
| self.ptr.height = height |
| self.ptr.format = format |
|
|
| |
| |
| if width and height: |
| res = lib.av_image_alloc( |
| self.ptr.data, self.ptr.linesize, width, height, format, 16 |
| ) |
| self._buffer = self.ptr.data[0] |
|
|
| if res: |
| err_check(res) |
|
|
| self._init_user_attributes() |
|
|
| cdef _init_user_attributes(self): |
| self.format = get_video_format(<lib.AVPixelFormat>self.ptr.format, self.ptr.width, self.ptr.height) |
|
|
| def __dealloc__(self): |
| |
| |
| lib.av_freep(&self._buffer) |
| |
| self._np_buffer = None |
|
|
| def __repr__(self): |
| return ( |
| f"<av.{self.__class__.__name__}, pts={self.pts} {self.format.name} " |
| f"{self.width}x{self.height} at 0x{id(self):x}>" |
| ) |
|
|
| @property |
| def planes(self): |
| """ |
| A tuple of :class:`.VideoPlane` objects. |
| """ |
| |
| |
| |
| |
| cdef int max_plane_count = 0 |
| for i in range(self.format.ptr.nb_components): |
| count = self.format.ptr.comp[i].plane + 1 |
| if max_plane_count < count: |
| max_plane_count = count |
| if self.format.name == "pal8": |
| max_plane_count = 2 |
|
|
| cdef int plane_count = 0 |
| while plane_count < max_plane_count and self.ptr.extended_data[plane_count]: |
| plane_count += 1 |
| return tuple([VideoPlane(self, i) for i in range(plane_count)]) |
|
|
| @property |
| def width(self): |
| """Width of the image, in pixels.""" |
| return self.ptr.width |
|
|
| @property |
| def height(self): |
| """Height of the image, in pixels.""" |
| return self.ptr.height |
|
|
| @property |
| def rotation(self): |
| """The rotation component of the `DISPLAYMATRIX` transformation matrix. |
| |
| Returns: |
| int: The angle (in degrees) by which the transformation rotates the frame |
| counterclockwise. The angle will be in range [-180, 180]. |
| """ |
| return get_display_rotation(self) |
|
|
| @property |
| def interlaced_frame(self): |
| """Is this frame an interlaced or progressive?""" |
|
|
| return bool(self.ptr.flags & lib.AV_FRAME_FLAG_INTERLACED) |
|
|
| @property |
| def pict_type(self): |
| """Returns an integer that corresponds to the PictureType enum. |
| |
| Wraps :ffmpeg:`AVFrame.pict_type` |
| |
| :type: int |
| """ |
| return self.ptr.pict_type |
|
|
| @pict_type.setter |
| def pict_type(self, value): |
| self.ptr.pict_type = value |
|
|
| @property |
| def colorspace(self): |
| """Colorspace of frame. |
| |
| Wraps :ffmpeg:`AVFrame.colorspace`. |
| |
| """ |
| return self.ptr.colorspace |
|
|
| @colorspace.setter |
| def colorspace(self, value): |
| self.ptr.colorspace = value |
|
|
| @property |
| def color_range(self): |
| """Color range of frame. |
| |
| Wraps :ffmpeg:`AVFrame.color_range`. |
| |
| """ |
| return self.ptr.color_range |
|
|
| @color_range.setter |
| def color_range(self, value): |
| self.ptr.color_range = value |
|
|
| def reformat(self, *args, **kwargs): |
| """reformat(width=None, height=None, format=None, src_colorspace=None, dst_colorspace=None, interpolation=None) |
| |
| Create a new :class:`VideoFrame` with the given width/height/format/colorspace. |
| |
| .. seealso:: :meth:`.VideoReformatter.reformat` for arguments. |
| |
| """ |
| if not self.reformatter: |
| self.reformatter = VideoReformatter() |
| return self.reformatter.reformat(self, *args, **kwargs) |
|
|
| def to_rgb(self, **kwargs): |
| """Get an RGB version of this frame. |
| |
| Any ``**kwargs`` are passed to :meth:`.VideoReformatter.reformat`. |
| |
| >>> frame = VideoFrame(1920, 1080) |
| >>> frame.format.name |
| 'yuv420p' |
| >>> frame.to_rgb().format.name |
| 'rgb24' |
| |
| """ |
| return self.reformat(format="rgb24", **kwargs) |
|
|
| def to_image(self, **kwargs): |
| """Get an RGB ``PIL.Image`` of this frame. |
| |
| Any ``**kwargs`` are passed to :meth:`.VideoReformatter.reformat`. |
| |
| .. note:: PIL or Pillow must be installed. |
| |
| """ |
| from PIL import Image |
| cdef VideoPlane plane = self.reformat(format="rgb24", **kwargs).planes[0] |
|
|
| cdef const uint8_t[:] i_buf = plane |
| cdef size_t i_pos = 0 |
| cdef size_t i_stride = plane.line_size |
|
|
| cdef size_t o_pos = 0 |
| cdef size_t o_stride = plane.width * 3 |
| cdef size_t o_size = plane.height * o_stride |
| cdef bytearray o_buf = bytearray(o_size) |
|
|
| while o_pos < o_size: |
| o_buf[o_pos:o_pos + o_stride] = i_buf[i_pos:i_pos + o_stride] |
| i_pos += i_stride |
| o_pos += o_stride |
|
|
| return Image.frombytes("RGB", (plane.width, plane.height), bytes(o_buf), "raw", "RGB", 0, 1) |
|
|
| def to_ndarray(self, channel_last=False, **kwargs): |
| """Get a numpy array of this frame. |
| |
| Any ``**kwargs`` are passed to :meth:`.VideoReformatter.reformat`. |
| |
| The array returned is generally of dimension (height, width, channels). |
| |
| :param bool channel_last: If True, the shape of array will be |
| (height, width, channels) rather than (channels, height, width) for |
| the "yuv444p" and "yuvj444p" formats. |
| |
| .. note:: Numpy must be installed. |
| |
| .. note:: For formats which return an array of ``uint16`` or ``float32``, |
| the samples will be in the system's native byte order. |
| |
| .. note:: For ``pal8``, an ``(image, palette)`` tuple will be returned, |
| with the palette being in ARGB (PyAV will swap bytes if needed). |
| |
| .. note:: For ``gbrp`` formats, channels are flipped to RGB order. |
| |
| """ |
| cdef VideoFrame frame = self.reformat(**kwargs) |
|
|
| import numpy as np |
|
|
| |
| if frame.format.name in {"yuv420p", "yuvj420p", "yuyv422", "yuv422p10le"}: |
| assert frame.width % 2 == 0, "the width has to be even for this pixel format" |
| assert frame.height % 2 == 0, "the height has to be even for this pixel format" |
|
|
| |
| itemsize, dtype = { |
| "abgr": (4, "uint8"), |
| "argb": (4, "uint8"), |
| "bayer_bggr8": (1, "uint8"), |
| "bayer_gbrg8": (1, "uint8"), |
| "bayer_grbg8": (1, "uint8"), |
| "bayer_rggb8": (1, "uint8"), |
| "bayer_bggr16le": (2, "uint16"), |
| "bayer_bggr16be": (2, "uint16"), |
| "bayer_gbrg16le": (2, "uint16"), |
| "bayer_gbrg16be": (2, "uint16"), |
| "bayer_grbg16le": (2, "uint16"), |
| "bayer_grbg16be": (2, "uint16"), |
| "bayer_rggb16le": (2, "uint16"), |
| "bayer_rggb16be": (2, "uint16"), |
| "bgr24": (3, "uint8"), |
| "bgr8": (1, "uint8"), |
| "bgra": (4, "uint8"), |
| "gbrapf32be": (4, "float32"), |
| "gbrapf32le": (4, "float32"), |
| "gbrp": (1, "uint8"), |
| "gbrp10be": (2, "uint16"), |
| "gbrp10le": (2, "uint16"), |
| "gbrp12be": (2, "uint16"), |
| "gbrp12le": (2, "uint16"), |
| "gbrp14be": (2, "uint16"), |
| "gbrp14le": (2, "uint16"), |
| "gbrp16be": (2, "uint16"), |
| "gbrp16le": (2, "uint16"), |
| "gbrpf32be": (4, "float32"), |
| "gbrpf32le": (4, "float32"), |
| "gray": (1, "uint8"), |
| "gray16be": (2, "uint16"), |
| "gray16le": (2, "uint16"), |
| "gray8": (1, "uint8"), |
| "grayf32be": (4, "float32"), |
| "grayf32le": (4, "float32"), |
| "rgb24": (3, "uint8"), |
| "rgb48be": (6, "uint16"), |
| "rgb48le": (6, "uint16"), |
| "rgb8": (1, "uint8"), |
| "rgba": (4, "uint8"), |
| "rgba64be": (8, "uint16"), |
| "rgba64le": (8, "uint16"), |
| "yuv444p": (1, "uint8"), |
| "yuv444p16be": (2, "uint16"), |
| "yuv444p16le": (2, "uint16"), |
| "yuva444p16be": (2, "uint16"), |
| "yuva444p16le": (2, "uint16"), |
| "yuvj444p": (1, "uint8"), |
| "yuyv422": (2, "uint8"), |
| }.get(frame.format.name, (None, None)) |
| if itemsize is not None: |
| layers = [ |
| useful_array(plan, itemsize, dtype) |
| .reshape(frame.height, frame.width, -1) |
| for plan in frame.planes |
| ] |
| if len(layers) == 1: |
| array = layers[0] |
| else: |
| array = np.concatenate(layers, axis=2) |
| array = byteswap_array(array, frame.format.name.endswith("be")) |
| if array.shape[2] == 1: |
| return array.squeeze(2) |
| if frame.format.name.startswith("gbr"): |
| buffer = array[:, :, 0].copy() |
| array[:, :, 0] = array[:, :, 2] |
| array[:, :, 2] = array[:, :, 1] |
| array[:, :, 1] = buffer |
| if not channel_last and frame.format.name in {"yuv444p", "yuvj444p"}: |
| array = np.moveaxis(array, 2, 0) |
| return array |
|
|
| |
| if frame.format.name in {"yuv420p", "yuvj420p"}: |
| return np.hstack([ |
| useful_array(frame.planes[0]), |
| useful_array(frame.planes[1]), |
| useful_array(frame.planes[2]), |
| ]).reshape(-1, frame.width) |
| if frame.format.name == "yuv422p10le": |
| |
| y = useful_array(frame.planes[0], 2, "uint16").reshape(frame.height, frame.width) |
| u = useful_array(frame.planes[1], 2, "uint16").reshape(frame.height, frame.width // 2) |
| v = useful_array(frame.planes[2], 2, "uint16").reshape(frame.height, frame.width // 2) |
|
|
| |
| u_full = np.repeat(u, 2, axis=1) |
| v_full = np.repeat(v, 2, axis=1) |
| if channel_last: |
| return np.stack([y, u_full, v_full], axis=2) |
| return np.stack([y, u_full, v_full], axis=0) |
| if frame.format.name == "pal8": |
| image = useful_array(frame.planes[0]).reshape(frame.height, frame.width) |
| palette = np.frombuffer(frame.planes[1], "i4").astype(">i4").reshape(-1, 1).view(np.uint8) |
| return image, palette |
| if frame.format.name == "nv12": |
| return np.hstack([ |
| useful_array(frame.planes[0]), |
| useful_array(frame.planes[1], 2), |
| ]).reshape(-1, frame.width) |
|
|
| raise ValueError( |
| f"Conversion to numpy array with format `{frame.format.name}` is not yet supported" |
| ) |
|
|
| @staticmethod |
| def from_image(img): |
| """ |
| Construct a frame from a ``PIL.Image``. |
| """ |
| if img.mode != "RGB": |
| img = img.convert("RGB") |
|
|
| cdef VideoFrame frame = VideoFrame(img.size[0], img.size[1], "rgb24") |
| copy_array_to_plane(img, frame.planes[0], 3) |
|
|
| return frame |
|
|
| @staticmethod |
| def from_numpy_buffer(array, format="rgb24", width=0): |
| |
| |
| |
| |
| |
| height = array.shape[0] |
| if not width: |
| width = array.shape[1] |
|
|
| if format in ("rgb24", "bgr24"): |
| check_ndarray(array, "uint8", 3) |
| check_ndarray_shape(array, array.shape[2] == 3) |
| if array.strides[1:] != (3, 1): |
| raise ValueError("provided array does not have C_CONTIGUOUS rows") |
| linesizes = (array.strides[0], ) |
| elif format in ("rgba", "bgra"): |
| check_ndarray(array, "uint8", 3) |
| check_ndarray_shape(array, array.shape[2] == 4) |
| if array.strides[1:] != (4, 1): |
| raise ValueError("provided array does not have C_CONTIGUOUS rows") |
| linesizes = (array.strides[0], ) |
| elif format in ("gray", "gray8", "rgb8", "bgr8"): |
| check_ndarray(array, "uint8", 2) |
| if array.strides[1] != 1: |
| raise ValueError("provided array does not have C_CONTIGUOUS rows") |
| linesizes = (array.strides[0], ) |
| elif format in ("yuv420p", "yuvj420p", "nv12"): |
| check_ndarray(array, "uint8", 2) |
| check_ndarray_shape(array, array.shape[0] % 3 == 0) |
| check_ndarray_shape(array, array.shape[1] % 2 == 0) |
| height = height // 6 * 4 |
| if array.strides[1] != 1: |
| raise ValueError("provided array does not have C_CONTIGUOUS rows") |
| if format in ("yuv420p", "yuvj420p"): |
| |
| linesizes = (array.strides[0], array.strides[0] // 2, array.strides[0] // 2) |
| else: |
| |
| linesizes = (array.strides[0], array.strides[0]) |
| elif format in {"bayer_bggr8", "bayer_rggb8", "bayer_gbrg8", "bayer_grbg8","bayer_bggr16le", "bayer_rggb16le", "bayer_gbrg16le", "bayer_grbg16le","bayer_bggr16be", "bayer_rggb16be", "bayer_gbrg16be", "bayer_grbg16be"}: |
| check_ndarray(array, "uint8" if format.endswith("8") else "uint16", 2) |
| |
| if array.strides[1] != (1 if format.endswith("8") else 2): |
| raise ValueError("provided array does not have C_CONTIGUOUS rows") |
| |
| linesizes = (array.strides[0],) |
| else: |
| raise ValueError(f"Conversion from numpy array with format `{format}` is not yet supported") |
|
|
| frame = alloc_video_frame() |
| frame._image_fill_pointers_numpy(array, width, height, linesizes, format) |
| return frame |
|
|
| def _image_fill_pointers_numpy(self, buffer, width, height, linesizes, format): |
| cdef lib.AVPixelFormat c_format |
| cdef uint8_t * c_ptr |
| cdef size_t c_data |
|
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
|
|
| |
| |
| |
| |
| |
| |
| c_data = buffer.ctypes.data |
| c_ptr = <uint8_t*> (c_data) |
| c_format = get_pix_fmt(format) |
| lib.av_freep(&self._buffer) |
|
|
| |
| |
| self._np_buffer = buffer |
| self.ptr.format = c_format |
| self.ptr.width = width |
| self.ptr.height = height |
| for i, linesize in enumerate(linesizes): |
| self.ptr.linesize[i] = linesize |
|
|
| res = lib.av_image_fill_pointers( |
| self.ptr.data, |
| <lib.AVPixelFormat>self.ptr.format, |
| self.ptr.height, |
| c_ptr, |
| self.ptr.linesize, |
| ) |
|
|
| if res: |
| err_check(res) |
| self._init_user_attributes() |
|
|
| @staticmethod |
| def from_ndarray(array, format="rgb24", channel_last=False): |
| """ |
| Construct a frame from a numpy array. |
| |
| :param bool channel_last: If False (default), the shape for the yuv444p and yuvj444p |
| is given by (channels, height, width) rather than (height, width, channels). |
| |
| .. note:: For formats which expect an array of ``uint16``, |
| the samples must be in the system's native byte order. |
| |
| .. note:: for ``pal8``, an ``(image, palette)`` pair must be passed. `palette` must have shape (256, 4) and is given in ARGB format (PyAV will swap bytes if needed). |
| |
| .. note:: for ``gbrp`` formats, channels are assumed to be given in RGB order. |
| |
| """ |
| import numpy as np |
|
|
| |
| channels, itemsize, dtype = { |
| "yuv444p": (3, 1, "uint8"), |
| "yuvj444p": (3, 1, "uint8"), |
| "gbrp": (3, 1, "uint8"), |
| "gbrp10be": (3, 2, "uint16"), |
| "gbrp12be": (3, 2, "uint16"), |
| "gbrp14be": (3, 2, "uint16"), |
| "gbrp16be": (3, 2, "uint16"), |
| "gbrp10le": (3, 2, "uint16"), |
| "gbrp12le": (3, 2, "uint16"), |
| "gbrp14le": (3, 2, "uint16"), |
| "gbrp16le": (3, 2, "uint16"), |
| "gbrpf32be": (3, 4, "float32"), |
| "gbrpf32le": (3, 4, "float32"), |
| "gray": (1, 1, "uint8"), |
| "gray8": (1, 1, "uint8"), |
| "rgb8": (1, 1, "uint8"), |
| "bgr8": (1, 1, "uint8"), |
| "gray16be": (1, 2, "uint16"), |
| "gray16le": (1, 2, "uint16"), |
| "grayf32be": (1, 4, "float32"), |
| "grayf32le": (1, 4, "float32"), |
| "gbrapf32be": (4, 4, "float32"), |
| "gbrapf32le": (4, 4, "float32"), |
| "yuv444p16be": (3, 2, "uint16"), |
| "yuv444p16le": (3, 2, "uint16"), |
| "yuva444p16be": (4, 2, "uint16"), |
| "yuva444p16le": (4, 2, "uint16"), |
| "bayer_bggr8": (1, 1, "uint8"), |
| "bayer_rggb8": (1, 1, "uint8"), |
| "bayer_grbg8": (1, 1, "uint8"), |
| "bayer_gbrg8": (1, 1, "uint8"), |
| "bayer_bggr16be": (1, 2, "uint16"), |
| "bayer_bggr16le": (1, 2, "uint16"), |
| "bayer_rggb16be": (1, 2, "uint16"), |
| "bayer_rggb16le": (1, 2, "uint16"), |
| "bayer_grbg16be": (1, 2, "uint16"), |
| "bayer_grbg16le": (1, 2, "uint16"), |
| "bayer_gbrg16be": (1, 2, "uint16"), |
| "bayer_gbrg16le": (1, 2, "uint16"), |
| }.get(format, (None, None, None)) |
| if channels is not None: |
| if array.ndim == 2: |
| array = array[:, :, None] |
| check_ndarray(array, dtype, 3) |
| if not channel_last and format in {"yuv444p", "yuvj444p"}: |
| array = np.moveaxis(array, 0, 2) |
| check_ndarray_shape(array, array.shape[2] == channels) |
| array = byteswap_array(array, format.endswith("be")) |
| frame = VideoFrame(array.shape[1], array.shape[0], format) |
| if frame.format.name.startswith("gbr"): |
| array = np.concatenate([ |
| array[:, :, 1:3], array[:, :, 0:1], array[:, :, 3:], |
| ], axis=2) |
| for i in range(channels): |
| copy_array_to_plane(array[:, :, i], frame.planes[i], itemsize) |
| return frame |
|
|
| |
| if format == "pal8": |
| array, palette = array |
| check_ndarray(array, "uint8", 2) |
| check_ndarray(palette, "uint8", 2) |
| check_ndarray_shape(palette, palette.shape == (256, 4)) |
|
|
| frame = VideoFrame(array.shape[1], array.shape[0], format) |
| copy_array_to_plane(array, frame.planes[0], 1) |
| frame.planes[1].update(palette.view(">i4").astype("i4").tobytes()) |
| return frame |
| elif format in {"yuv420p", "yuvj420p"}: |
| check_ndarray(array, "uint8", 2) |
| check_ndarray_shape(array, array.shape[0] % 3 == 0) |
| check_ndarray_shape(array, array.shape[1] % 2 == 0) |
|
|
| frame = VideoFrame(array.shape[1], (array.shape[0] * 2) // 3, format) |
| u_start = frame.width * frame.height |
| v_start = 5 * u_start // 4 |
| flat = array.reshape(-1) |
| copy_array_to_plane(flat[0:u_start], frame.planes[0], 1) |
| copy_array_to_plane(flat[u_start:v_start], frame.planes[1], 1) |
| copy_array_to_plane(flat[v_start:], frame.planes[2], 1) |
| return frame |
| elif format == "yuv422p10le": |
| if not isinstance(array, np.ndarray) or array.dtype != np.uint16: |
| raise ValueError("Array must be uint16 type") |
|
|
| |
| if channel_last and array.shape[2] == 3: |
| array = np.moveaxis(array, 2, 0) |
| elif not (array.shape[0] == 3): |
| raise ValueError("Array must have shape (3, height, width) or (height, width, 3)") |
|
|
| height, width = array.shape[1:] |
| if width % 2 != 0 or height % 2 != 0: |
| raise ValueError("Width and height must be even") |
|
|
| frame = VideoFrame(width, height, format) |
| copy_array_to_plane(array[0], frame.planes[0], 2) |
| |
| u = array[1, :, ::2].copy() |
| v = array[2, :, ::2].copy() |
| copy_array_to_plane(u, frame.planes[1], 2) |
| copy_array_to_plane(v, frame.planes[2], 2) |
| return frame |
| elif format == "yuyv422": |
| check_ndarray(array, "uint8", 3) |
| check_ndarray_shape(array, array.shape[0] % 2 == 0) |
| check_ndarray_shape(array, array.shape[1] % 2 == 0) |
| check_ndarray_shape(array, array.shape[2] == 2) |
| elif format in {"rgb24", "bgr24"}: |
| check_ndarray(array, "uint8", 3) |
| check_ndarray_shape(array, array.shape[2] == 3) |
| elif format in {"argb", "rgba", "abgr", "bgra"}: |
| check_ndarray(array, "uint8", 3) |
| check_ndarray_shape(array, array.shape[2] == 4) |
| elif format in {"rgb48be", "rgb48le"}: |
| check_ndarray(array, "uint16", 3) |
| check_ndarray_shape(array, array.shape[2] == 3) |
| frame = VideoFrame(array.shape[1], array.shape[0], format) |
| copy_array_to_plane(byteswap_array(array, format.endswith("be")), frame.planes[0], 6) |
| return frame |
| elif format in {"rgba64be", "rgba64le"}: |
| check_ndarray(array, "uint16", 3) |
| check_ndarray_shape(array, array.shape[2] == 4) |
| frame = VideoFrame(array.shape[1], array.shape[0], format) |
| copy_array_to_plane(byteswap_array(array, format.endswith("be")), frame.planes[0], 8) |
| return frame |
| elif format == "nv12": |
| check_ndarray(array, "uint8", 2) |
| check_ndarray_shape(array, array.shape[0] % 3 == 0) |
| check_ndarray_shape(array, array.shape[1] % 2 == 0) |
|
|
| frame = VideoFrame(array.shape[1], (array.shape[0] * 2) // 3, format) |
| uv_start = frame.width * frame.height |
| flat = array.reshape(-1) |
| copy_array_to_plane(flat[:uv_start], frame.planes[0], 1) |
| copy_array_to_plane(flat[uv_start:], frame.planes[1], 2) |
| return frame |
| else: |
| raise ValueError(f"Conversion from numpy array with format `{format}` is not yet supported") |
|
|
| frame = VideoFrame(array.shape[1], array.shape[0], format) |
| copy_array_to_plane(array, frame.planes[0], 1 if array.ndim == 2 else array.shape[2]) |
|
|
| return frame |
|
|
| @staticmethod |
| def from_bytes(img_bytes: bytes, width: int, height: int, format="rgba", flip_horizontal=False, flip_vertical=False): |
| frame = VideoFrame(width, height, format) |
| if format == "rgba": |
| copy_bytes_to_plane(img_bytes, frame.planes[0], 4, flip_horizontal, flip_vertical) |
| elif format in ("bayer_bggr8", "bayer_rggb8", "bayer_gbrg8", "bayer_grbg8","bayer_bggr16le", "bayer_rggb16le", "bayer_gbrg16le", "bayer_grbg16le","bayer_bggr16be", "bayer_rggb16be", "bayer_gbrg16be", "bayer_grbg16be"): |
| copy_bytes_to_plane(img_bytes, frame.planes[0], 1 if format.endswith("8") else 2, flip_horizontal, flip_vertical) |
| else: |
| raise NotImplementedError(f"Format '{format}' is not supported.") |
| return frame |
|
|