[FFmpeg-devel] [PATCH v1] lavc/qsvdec: Use FFmpeg default 1/25 framerate if can't derive it from bitstream

[Xiang, Haihao]

On Do, 2024-04-18 at 16:15 +0800, fei.w.wang-at-intel.com at ffmpeg.org wrote:
> From: Fei Wang <fei.w.wang at intel.com>
> 
> Fix error:
> $ ffmpeg -hwaccel qsv -i input.h265 -f null -
> ...
> [null @ 0x55da1a629200] Application provided invalid, non monotonically
> increasing dts to muxer in stream 0: 3 >= 3
> 
> Signed-off-by: Fei Wang <fei.w.wang at intel.com>
> ---
>  libavcodec/qsvdec.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/libavcodec/qsvdec.c b/libavcodec/qsvdec.c
> index fd9267c6f4..218ca59e08 100644
> --- a/libavcodec/qsvdec.c
> +++ b/libavcodec/qsvdec.c
> @@ -440,6 +440,11 @@ static int qsv_decode_header(AVCodecContext *avctx,
> QSVContext *q,
>      param->ExtParam    = q->ext_buffers;
>      param->NumExtParam = q->nb_ext_buffers;
>  
> +    if (param->mfx.FrameInfo.FrameRateExtN == 0 || param-
> >mfx.FrameInfo.FrameRateExtD == 0) {
> +        param->mfx.FrameInfo.FrameRateExtN = 25;
> +        param->mfx.FrameInfo.FrameRateExtD = 1;
> +    }
> +
>  #if QSV_VERSION_ATLEAST(1, 34)
>      if (QSV_RUNTIME_VERSION_ATLEAST(q->ver, 1, 34) && avctx->codec_id ==
> AV_CODEC_ID_AV1)
>          param->mfx.FilmGrain = (avctx->export_side_data &
> AV_CODEC_EXPORT_DATA_FILM_GRAIN) ? 0 : param->mfx.FilmGrain;

LGTM, will apply

Thanks
Haihao