[FFmpeg-devel] [PATCH] doc/examples/vaapi_transcode: fix null framerate

[Jianfeng Zheng]

Hi Anton, Haihao,

Please review patch v2.

Thanks,
Jianfeng

Anton Khirnov <anton at khirnov.net> 于2023年3月31日周五 23:04写道：
>
> Quoting jianfeng.zheng (2023-03-30 10:28:27)
> > When framerate in codec layer is null, guess from stream.
> >
> > Signed-off-by: jianfeng.zheng <jianfeng.zheng at mthreads.com>
> > ---
> >  doc/examples/vaapi_transcode.c | 4 ++++
> >  1 file changed, 4 insertions(+)
> >
> > diff --git a/doc/examples/vaapi_transcode.c b/doc/examples/vaapi_transcode.c
> > index 8367cb3040..cdcc4e263a 100644
> > --- a/doc/examples/vaapi_transcode.c
> > +++ b/doc/examples/vaapi_transcode.c
> > @@ -103,6 +103,10 @@ static int open_input_file(const char *filename)
> >          fprintf(stderr, "Failed to open codec for decoding. Error code: %s\n",
> >                  av_err2str(ret));
> >
> > +    if (decoder_ctx->framerate.num == 0 &&
> > +                     video->r_frame_rate.num > 0 && video->r_frame_rate.den > 0)
> > +        decoder_ctx->framerate = video->r_frame_rate;
>
> This field is to be set by decoder, not the API caller.
>
> --
> Anton Khirnov
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