2.9. Compressed Formats¶

Compressed Image Formats¶
Identifier	Code	Details
`V4L2_PIX_FMT_JPEG`	‘JPEG’	TBD. See also VIDIOC_G_JPEGCOMP, VIDIOC_S_JPEGCOMP.
`V4L2_PIX_FMT_MPEG`	‘MPEG’	MPEG multiplexed stream. The actual format is determined by extended control `V4L2_CID_MPEG_STREAM_TYPE`, see Codec Control IDs.
`V4L2_PIX_FMT_H264`	‘H264’	H264 video elementary stream with start codes.
`V4L2_PIX_FMT_H264_NO_SC`	‘AVC1’	H264 video elementary stream without start codes.
`V4L2_PIX_FMT_H264_MVC`	‘M264’	H264 MVC video elementary stream.
`V4L2_PIX_FMT_H263`	‘H263’	H263 video elementary stream.
`V4L2_PIX_FMT_MPEG1`	‘MPG1’	MPEG1 video elementary stream.
`V4L2_PIX_FMT_MPEG2`	‘MPG2’	MPEG2 video elementary stream.
`V4L2_PIX_FMT_MPEG2_SLICE`	‘MG2S’	MPEG-2 parsed slice data, as extracted from the MPEG-2 bitstream. This format is adapted for stateless video decoders that implement a MPEG-2 pipeline (using the Codec Interface and Request API). Metadata associated with the frame to decode is required to be passed through the `V4L2_CID_MPEG_VIDEO_MPEG2_SLICE_PARAMS` control and quantization matrices can optionally be specified through the `V4L2_CID_MPEG_VIDEO_MPEG2_QUANTIZATION` control. See the associated Codec Control IDs. Exactly one output and one capture buffer must be provided for use with this pixel format. The output buffer must contain the appropriate number of macroblocks to decode a full corresponding frame to the matching capture buffer.
`V4L2_PIX_FMT_MPEG4`	‘MPG4’	MPEG4 video elementary stream.
`V4L2_PIX_FMT_XVID`	‘XVID’	Xvid video elementary stream.
`V4L2_PIX_FMT_VC1_ANNEX_G`	‘VC1G’	VC1, SMPTE 421M Annex G compliant stream.
`V4L2_PIX_FMT_VC1_ANNEX_L`	‘VC1L’	VC1, SMPTE 421M Annex L compliant stream.
`V4L2_PIX_FMT_VP8`	‘VP80’	VP8 video elementary stream.
`V4L2_PIX_FMT_VP9`	‘VP90’	VP9 video elementary stream.
`V4L2_PIX_FMT_HEVC`	‘HEVC’	HEVC/H.265 video elementary stream.
`V4L2_PIX_FMT_FWHT`	‘FWHT’	Video elementary stream using a codec based on the Fast Walsh Hadamard Transform. This codec is implemented by the vicodec (‘Virtual Codec’) driver. See the codec-fwht.h header for more details.