linux-kernel - Re: [PATCH 1/4] media: v4l2-ctrls: Add random intra-refresh control

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Message-ID: <159cc27a-20a8-383c-025f-e3e32742c3f5@linaro.org>
Date:   Wed, 2 Dec 2020 14:15:01 +0200
From:   Stanimir Varbanov <stanimir.varbanov@...aro.org>
To:     Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Cc:     Ezequiel Garcia <ezequiel@...labora.com>,
        Nicolas Dufresne <nicolas.dufresne@...labora.com>,
        Maheshwar Ajja <majja@...eaurora.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>
Subject: Re: [PATCH 1/4] media: v4l2-ctrls: Add random intra-refresh control

Hi,

On 11/30/20 11:08 AM, Stanimir Varbanov wrote:
> Add a control to configure number of macroblocks for random
> intra-refresh mode.
> 
> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>
> ---
>  Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst | 6 ++++++
>  drivers/media/v4l2-core/v4l2-ctrls.c                      | 1 +
>  include/uapi/linux/v4l2-controls.h                        | 1 +
>  3 files changed, 8 insertions(+)
> 
> diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
> index ce728c757eaf..59c5d3da4d95 100644
> --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
> +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
> @@ -1104,6 +1104,12 @@ enum v4l2_mpeg_video_h264_entropy_mode -
>      macroblocks is refreshed until the cycle completes and starts from
>      the top of the frame. Applicable to H264, H263 and MPEG4 encoder.
>  
> +``V4L2_CID_MPEG_VIDEO_RANDOM_INTRA_REFRESH_MB (integer)``
> +    Random intra macroblock refresh. This is the number of random
> +    macroblocks refreshed on every frame. Here the positions of
> +    macroblocks to be refreshed on every frame is random. Applicable
> +    to H264 and HEVC encoder.

Please ignore this control.
I'm going to change the semantics in next version of this series.

-- 
regards,
Stan