Re: [PATCH v4 1/3] media: docs: dev-decoder: Trigger dynamic source change for colorspace

[Nicolas Dufresne]

Le mercredi 17 décembre 2025 à 11:02 +0800, ming.qian@xxxxxxxxxxx a écrit :
> From: Ming Qian <ming.qian@xxxxxxxxxxx>
> 
> If colorspace changes, the client needs to renegotiate the pipeline,
> otherwise the decoded frame may not be displayed correctly.
> 
> So add colorspace as a trigger parameter for dynamic resolution change.
> 
> Signed-off-by: Ming Qian <ming.qian@xxxxxxxxxxx>

Reviewed-by: Nicolas Dufresne <nicolas.dufresne@xxxxxxxxxxxxx>

> ---
>  Documentation/userspace-api/media/v4l/dev-decoder.rst | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/userspace-api/media/v4l/dev-decoder.rst
> b/Documentation/userspace-api/media/v4l/dev-decoder.rst
> index eb662ced0ab4..2beb6ba1b3c2 100644
> --- a/Documentation/userspace-api/media/v4l/dev-decoder.rst
> +++ b/Documentation/userspace-api/media/v4l/dev-decoder.rst
> @@ -933,7 +933,10 @@ reflected by corresponding queries):
>  
>  * the minimum number of buffers needed for decoding,
>  
> -* bit-depth of the bitstream has been changed.
> +* bit-depth of the bitstream has been changed,
> +
> +* colorspace of the bitstream has been changed, but it doesn't require
> +  buffer reallocation.
>  
>  Whenever that happens, the decoder must proceed as follows:
>

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