linux-kernel - Re: [PATCH v2 4/4] docs: Deprecate mfc display delay controls

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Message-ID: <acd7cd1f-607c-5901-07b7-c661a12d0c60@xs4all.nl>
Date:   Wed, 27 Jan 2021 13:25:56 +0100
From:   Hans Verkuil <hverkuil-cisco@...all.nl>
To:     Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 4/4] docs: Deprecate mfc display delay controls

On 15/01/2021 10:26, Stanimir Varbanov wrote:
> Deprecate mfc private display delay and display enable controls for
> new clients and use the standard controls instead.
> 
> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>

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

Thanks!

	Hans

> ---
>  .../userspace-api/media/v4l/ext-ctrls-codec.rst        | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
> index 5d7c47837035..815c6eb4a0d0 100644
> --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
> +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
> @@ -2111,6 +2111,11 @@ MFC 5.1 Control IDs
>      feature can be used for example for generating thumbnails of videos.
>      Applicable to the H264 decoder.
>  
> +    .. note::
> +
> +       This control is deprecated. Use the standard
> +       ``V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY_ENABLE`` control instead.
> +
>  ``V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY (integer)``
>      Display delay value for H264 decoder. The decoder is forced to
>      return a decoded frame after the set 'display delay' number of
> @@ -2118,6 +2123,11 @@ MFC 5.1 Control IDs
>      of display order, in addition the hardware may still be using the
>      returned buffer as a reference picture for subsequent frames.
>  
> +    .. note::
> +
> +       This control is deprecated. Use the standard
> +       ``V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY`` control instead.
> +
>  ``V4L2_CID_MPEG_MFC51_VIDEO_H264_NUM_REF_PIC_FOR_P (integer)``
>      The number of reference pictures used for encoding a P picture.
>      Applicable to the H264 encoder.
>