Re: [FFmpeg-devel] [PATCH 3/4] lavfi/qsvvpp: provide a default framerate if needed

[Soft Works <softworkz@hotmail.com>]

> -----Original Message-----
> From: ffmpeg-devel <ffmpeg-devel-bounces@ffmpeg.org> On Behalf Of
> Xiang, Haihao
> Sent: Thursday, November 24, 2022 10:19 AM
> To: ffmpeg-devel@ffmpeg.org
> Cc: Haihao Xiang <haihao.xiang@intel.com>
> Subject: [FFmpeg-devel] [PATCH 3/4] lavfi/qsvvpp: provide a default
> framerate if needed
> 
> From: Haihao Xiang <haihao.xiang@intel.com>
> 
> VPP in the SDK requires the frame rate to be set to a valid value,
> otherwise init will fail, so always set a default framerate when the
> input link doesn't have a valid framerate.
> 
> Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
> ---
>  libavfilter/qsvvpp.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/libavfilter/qsvvpp.c b/libavfilter/qsvvpp.c
> index a088f6b61f..a588a37610 100644
> --- a/libavfilter/qsvvpp.c
> +++ b/libavfilter/qsvvpp.c
> @@ -324,6 +324,14 @@ static int fill_frameinfo_by_link(mfxFrameInfo
> *frameinfo, AVFilterLink *link)
>      frameinfo->CropH          = link->h;
>      frameinfo->FrameRateExtN  = link->frame_rate.num;
>      frameinfo->FrameRateExtD  = link->frame_rate.den;
> +
> +    /* Apparently VPP in the SDK requires the frame rate to be set
> to some value, otherwise
> +     * init will fail */
> +    if (frameinfo->FrameRateExtD == 0 || frameinfo->FrameRateExtN ==
> 0) {
> +        frameinfo->FrameRateExtN = 25;
> +        frameinfo->FrameRateExtD = 1;
> +    }
> +
>      frameinfo->AspectRatioW   = link->sample_aspect_ratio.num ?
> link->sample_aspect_ratio.num : 1;
>      frameinfo->AspectRatioH   = link->sample_aspect_ratio.den ?
> link->sample_aspect_ratio.den : 1;
> 
> --

LGTM. I have this in place for about a year.

softworkz
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