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-rw-r--r--Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst4
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