[FFmpeg-devel] [PATCH] avformat/img2dec: set r_frame_rate in addition to avg_frame_rate

[Jan Ekström]

On Sun, Apr 11, 2021 at 1:16 PM Anton Khirnov <anton at khirnov.net> wrote:
>
> Quoting Jan Ekström (2021-04-07 20:25:03)
> > Apparently for various image sequences libavformat/utils.c can
> > calculate rather fancy r_frame_rate values, such as `186/1921`,
> > and since ffmpeg.c utilizes r_frame_rate for the filter chain
> > time base, this can quite deteriorate the output frame timing - even
> > though the user has requested the image sequence to be interpreted
> > at a specific, constant frame rate.
> > ---
> >  libavformat/img2dec.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/libavformat/img2dec.c b/libavformat/img2dec.c
> > index be7149bb2f..7b03cb2af1 100644
> > --- a/libavformat/img2dec.c
> > +++ b/libavformat/img2dec.c
> > @@ -222,7 +222,7 @@ int ff_img_read_header(AVFormatContext *s1)
> >          avpriv_set_pts_info(st, 64, 1, 1);
> >      else {
> >          avpriv_set_pts_info(st, 64, s->framerate.den, s->framerate.num);
> > -        st->avg_frame_rate = s->framerate;
> > +        st->avg_frame_rate = st->r_frame_rate = s->framerate;
> >      }
> >
> >      if (s->width && s->height) {
> > --
> > 2.30.2
>
> acceptable
>

Thanks.

Applied as 5945288818b98682884888e3800893b2f2ac7507 .

Jan