diff mbox series

[v5,1/3] docs: ext-ctrls-codec: Document cyclic intra-refresh zero control value

Message ID 20210622113958.809173-2-stanimir.varbanov@linaro.org
State Accepted
Commit ea9f91199ca99dd9b3fba004b7614eed233ba1ac
Headers show
Series [v5,1/3] docs: ext-ctrls-codec: Document cyclic intra-refresh zero control value | expand

Commit Message

Stanimir Varbanov June 22, 2021, 11:39 a.m. UTC
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.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>

---
 Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

-- 
2.25.1

Comments

Hans Verkuil July 28, 2021, 10:11 a.m. UTC | #1
On 22/06/2021 13:39, Stanimir Varbanov wrote:
> 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.

> 

> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>


Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>


Thanks!

	Hans

> ---

>  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 8c6e2a11ed95..addf44b99dfa 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

>
diff mbox series

Patch

diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
index 8c6e2a11ed95..addf44b99dfa 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