media/v4l/ext-ctrls-codec.rst

17    encoding formats.
139 .. _v4l2-mpeg-audio-encoding:
145     MPEG Audio encoding. This control is specific to multiplexed MPEG
155       - MPEG-1/2 Layer I encoding
157       - MPEG-1/2 Layer II encoding
159       - MPEG-1/2 Layer III encoding
163       - AC-3 aka ATSC A/52 encoding
502 .. _v4l2-mpeg-video-encoding:
508     MPEG Video encoding method. This control is specific to multiplexed
518       - MPEG-1 Video encoding
520       - MPEG-2 Video encoding
522       - MPEG-4 AVC (H.264) Video encoding
603     encoding a frame would cause the encoded stream to be larger then a
745     VUI sample aspect ratio indicator for H.264 encoding. The value is
795     Extended sample aspect ratio width for H.264 VUI encoding.
799     Extended sample aspect ratio height for H.264 VUI encoding.
1052     The maximum number of reference pictures used for encoding.
1659     (VIDIOC_DQBUF). Its valid range depends on the encoding format and parameters.
1678 The following MPEG class controls deal with MPEG decoding and encoding
1714     The number of reference pictures used for encoding a P picture.
1792     encoding a frame would cause the encoded stream to be larger then a
1858 The following MPEG class controls deal with MPEG encoding settings that
1859 are specific to the Conexant CX23415 and CX23416 MPEG encoding chips.
2048 The VPX controls include controls for encoding parameters of VPx video
2092     The number of reference pictures for encoding P frames. Possible
2134     for encoding sequence of 0, 1, 2, 3, 4, 5, 6, 7 where the golden
2144     Selects the golden frame for encoding. Possible values are:
2274 The HEVC/H.265 controls include controls for encoding parameters of HEVC/H.265
2354     Selects the hierarchical coding type for encoding. Possible values are:
2377     Selects the hierarchical coding layer. In normal encoding
2556       - Use CRA (Clean Random Access Unit) picture encoding.
2558       - Use IDR (Instantaneous Decoding Refresh) picture encoding.
2571     Indicates HEVC lossless encoding. Setting it to 0 disables lossless
2572     encoding. Setting it to 1 enables lossless encoding.
2611     the value to 0 disables encoding without startcode pattern. Setting the
2612     value to 1 will enables encoding without startcode pattern.
2621     This is valid when encoding WITHOUT_STARTCODE_ENABLE is enabled.