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| author | Stanimir Varbanov <stanimir.varbanov@linaro.org> | 2021-06-22 13:39:56 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-08-04 14:43:52 +0200 |
| commit | ea9f91199ca99dd9b3fba004b7614eed233ba1ac (patch) | |
| tree | 62bc8c62d8a3e2b6b8ec7e3b63bc2897950d513a /Documentation/userspace-api/media | |
| parent | 1ac61faf6ebbce59fccbb53d7faf25576e9897ab (diff) | |
| download | linux-ea9f91199ca99dd9b3fba004b7614eed233ba1ac.tar.bz2 | |
media: docs: ext-ctrls-codec: Document cyclic intra-refresh zero control value
In all drivers _CYCLIC_INTRA_REFRESH_MB default control value is zero
which means that the macroblocks will not be intra-refreshed. Document
this _CYCLIC_INTRA_REFRESH_MB control behaviour in control description.
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'Documentation/userspace-api/media')
| -rw-r--r-- | Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst index dc096a5562cd..999b2360cef8 100644 --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst @@ -1174,7 +1174,9 @@ enum v4l2_mpeg_video_h264_entropy_mode - Cyclic intra macroblock refresh. This is the number of continuous macroblocks refreshed every frame. Each frame a successive set of macroblocks is refreshed until the cycle completes and starts from - the top of the frame. Applicable to H264, H263 and MPEG4 encoder. + the top of the frame. Setting this control to zero means that + macroblocks will not be refreshed. + Applicable to H264, H263 and MPEG4 encoder. ``V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE (boolean)`` Frame level rate control enable. If this control is disabled then |