diff options
| author | Philipp Zabel <p.zabel@pengutronix.de> | 2019-01-10 19:56:10 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-01-16 22:03:19 +0300 |
| commit | d034696cbe5a6e00f76ca4b7869c6cdef66aebd5 (patch) | |
| tree | 581ec2e43fb8bf32df8f93faa36fa044e2fbccf5 /Documentation/media | |
| parent | 50656bad786d001b294764e9f047c5d5b3e4db75 (diff) | |
| download | linux-d034696cbe5a6e00f76ca4b7869c6cdef66aebd5.tar.xz | |
media: v4l2-ctrl: Add control for h.264 chroma qp offset
Allow to add fixed quantization parameter offset between luma and
chroma quantization parameters. This control directly corresponds
to the chroma_qp_index_offset field of the h.264 picture parameter
set.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'Documentation/media')
| -rw-r--r-- | Documentation/media/uapi/v4l/extended-controls.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/media/uapi/v4l/extended-controls.rst b/Documentation/media/uapi/v4l/extended-controls.rst index 235d0c293983..00934efdc9e4 100644 --- a/Documentation/media/uapi/v4l/extended-controls.rst +++ b/Documentation/media/uapi/v4l/extended-controls.rst @@ -1158,6 +1158,11 @@ enum v4l2_mpeg_video_h264_entropy_mode - Enable constrained intra prediction for H264. Applicable to the H264 encoder. +``V4L2_CID_MPEG_VIDEO_H264_CHROMA_QP_INDEX_OFFSET (integer)`` + Specify the offset that should be added to the luma quantization + parameter to determine the chroma quantization parameter. Applicable + to the H264 encoder. + ``V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB (integer)`` Cyclic intra macroblock refresh. This is the number of continuous macroblocks refreshed every frame. Each frame a successive set of |