diff options
Diffstat (limited to 'Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst')
| -rw-r--r-- | Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst index c8890cb5e00a..ab865a1a6ba9 100644 --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst @@ -737,6 +737,12 @@ enum v4l2_mpeg_video_frame_skip_mode - Enable writing sample aspect ratio in the Video Usability Information. Applicable to the H264 encoder. +``V4L2_CID_MPEG_VIDEO_BACKGROUND_DETECTION (boolean)`` + If enabled, the encoder detect a background region in frame and + use low bits or skip mode to encode the background region. + If a lot of scenes are stationary or background, It may help to + reduce the video bitrate. Applicable to the encoder. + .. _v4l2-mpeg-video-h264-vui-sar-idc: ``V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC`` |