media/v4l/ext-ctrls-codec.rst

595     Encoder will decide the appropriate quantization parameter and
1169     Specify the offset that should be added to the luma quantization
1170     parameter to determine the chroma quantization parameter. Applicable
1220     the quantization parameter for each frame type is constant and set
1223     enabled then quantization parameter is adjusted to meet the chosen
1224     bitrate. Minimum and maximum value for the quantization parameter
1241     Minimum quantization parameter for H263. Valid range: from 1 to 31.
1244     Maximum quantization parameter for H263. Valid range: from 1 to 31.
1259     Minimum quantization parameter for H264. Valid range: from 0 to 51.
1262     Maximum quantization parameter for H264. Valid range: from 0 to 51.
1273     Minimum quantization parameter for the H264 I frame to limit I frame
1275     V4L2_CID_MPEG_VIDEO_H264_MIN_QP is also set, the quantization parameter
1279     Maximum quantization parameter for the H264 I frame to limit I frame
1281     V4L2_CID_MPEG_VIDEO_H264_MAX_QP is also set, the quantization parameter
1285     Minimum quantization parameter for the H264 P frame to limit P frame
1287     V4L2_CID_MPEG_VIDEO_H264_MIN_QP is also set, the quantization parameter
1291     Maximum quantization parameter for the H264 P frame to limit P frame
1293     V4L2_CID_MPEG_VIDEO_H264_MAX_QP is also set, the quantization parameter
1297     Minimum quantization parameter for the H264 B frame to limit B frame
1299     V4L2_CID_MPEG_VIDEO_H264_MIN_QP is also set, the quantization parameter
1303     Maximum quantization parameter for the H264 B frame to limit B frame
1305     V4L2_CID_MPEG_VIDEO_H264_MAX_QP is also set, the quantization parameter
1313     Minimum quantization parameter for MPEG4. Valid range: from 1 to 31.
1316     Maximum quantization parameter for MPEG4. Valid range: from 1 to 31.
2170     Minimum quantization parameter for VP8.
2173     Maximum quantization parameter for VP8.
2284     Minimum quantization parameter for HEVC.
2288     Maximum quantization parameter for HEVC.
2307     Minimum quantization parameter for the HEVC I frame to limit I frame
2309     If V4L2_CID_MPEG_VIDEO_HEVC_MIN_QP is also set, the quantization parameter
2313     Maximum quantization parameter for the HEVC I frame to limit I frame
2315     If V4L2_CID_MPEG_VIDEO_HEVC_MAX_QP is also set, the quantization parameter
2319     Minimum quantization parameter for the HEVC P frame to limit P frame
2321     If V4L2_CID_MPEG_VIDEO_HEVC_MIN_QP is also set, the quantization parameter
2325     Maximum quantization parameter for the HEVC P frame to limit P frame
2327     If V4L2_CID_MPEG_VIDEO_HEVC_MAX_QP is also set, the quantization parameter
2331     Minimum quantization parameter for the HEVC B frame to limit B frame
2333     If V4L2_CID_MPEG_VIDEO_HEVC_MIN_QP is also set, the quantization parameter
2337     Maximum quantization parameter for the HEVC B frame to limit B frame
2339     If V4L2_CID_MPEG_VIDEO_HEVC_MAX_QP is also set, the quantization parameter
2343     HIERARCHICAL_QP allows the host to specify the quantization parameter
2383     Indicates quantization parameter for hierarchical coding layer 0.
2388     Indicates quantization parameter for hierarchical coding layer 1.
2393     Indicates quantization parameter for hierarchical coding layer 2.
2398     Indicates quantization parameter for hierarchical coding layer 3.
2403     Indicates quantization parameter for hierarchical coding layer 4.
2408     Indicates quantization parameter for hierarchical coding layer 5.
2413     Indicates quantization parameter for hierarchical coding layer 6.