From ea9f91199ca99dd9b3fba004b7614eed233ba1ac Mon Sep 17 00:00:00 2001 From: Stanimir Varbanov Date: Tue, 22 Jun 2021 13:39:56 +0200 Subject: [PATCH] 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 Signed-off-by: Stanimir Varbanov Signed-off-by: Mauro Carvalho Chehab --- Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst index dc096a5..999b236 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 -- 2.7.4