2017-10-10 19:44 GMT+02:00 wm4 <nfx...@googlemail.com>:
> On Tue, 10 Oct 2017 10:36:58 -0700
> Sasi Inguva <isasi-at-google....@ffmpeg.org> wrote:
>
> > This is required for FLV files, for which duration_pts comes out to be
> zero.
> >
> > Signed-off-by: Sasi Inguva <is...@google.com>
> > ---
> > fftools/ffmpeg.c | 9 +++++++--
> > 1 file changed, 7 insertions(+), 2 deletions(-)
> >
> > diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c
> > index 6d64bc1043..3ee31473dc 100644
> > --- a/fftools/ffmpeg.c
> > +++ b/fftools/ffmpeg.c
> > @@ -2665,8 +2665,13 @@ static int process_input_packet(InputStream
> *ist, const AVPacket *pkt, int no_eo
> > ist->next_dts = AV_NOPTS_VALUE;
> > }
> >
> > - if (got_output)
> > - ist->next_pts += av_rescale_q(duration_pts,
> ist->st->time_base, AV_TIME_BASE_Q);
> > + if (got_output) {
> > + if (duration_pts > 0) {
> > + ist->next_pts += av_rescale_q(duration_pts,
> ist->st->time_base, AV_TIME_BASE_Q);
> > + } else {
> > + ist->next_pts += duration_dts;
> > + }
> > + }
> > break;
> > case AVMEDIA_TYPE_SUBTITLE:
> > if (repeating)
>
> So why can't duration_pts be 0?
>
Hmm, to my understanding that would be a frame with no duration. Virtually
an invisible frame.
Can you give an example?
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