[FFmpeg-devel] [PATCH] lavc/utils: use pkt_timebase for legacy subtitles timing code

Clément Bœsch u at pkh.me
Mon Mar 28 19:36:18 CEST 2016


On Mon, Mar 28, 2016 at 06:52:26PM +0200, wm4 wrote:
> On Mon, 28 Mar 2016 18:44:33 +0200
> Michael Niedermayer <michael at niedermayer.cc> wrote:
> 
> > On Mon, Mar 28, 2016 at 02:15:50PM +0200, Clément Bœsch wrote:
> > > This is consistent with other AVSubtitle timing adjustments.
> > > ---
> > >  libavcodec/utils.c | 9 +++++++--
> > >  1 file changed, 7 insertions(+), 2 deletions(-)
> > > 
> > > diff --git a/libavcodec/utils.c b/libavcodec/utils.c
> > > index c625bbc..2c8fc9c 100644
> > > --- a/libavcodec/utils.c
> > > +++ b/libavcodec/utils.c
> > > @@ -2582,8 +2582,13 @@ int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
> > >  
> > >  #if FF_API_ASS_TIMING
> > >              if (avctx->sub_text_format == FF_SUB_TEXT_FMT_ASS_WITH_TIMINGS
> > > -                && *got_sub_ptr && sub->num_rects)
> > > -                ret = convert_sub_to_old_ass_form(sub, avpkt, avctx->time_base);
> > > +                && *got_sub_ptr && sub->num_rects) {
> > > +                if (!avctx->pkt_timebase.num) {
> > > +                    av_log(avctx, AV_LOG_ERROR, "packet time base not set\n");
> > > +                    return AVERROR_BUG;
> > > +                }
> > > +                ret = convert_sub_to_old_ass_form(sub, avpkt, avctx->pkt_timebase);
> > > +            }
> > >  #endif  
> > 
> > this change does make sense
> > 
> > do all apps that get into this code set avctx->pkt_timebase so that
> > this works though or is it otherwise guranteed to be set ?
> > 
> > [...]
> 
> No they don't. It's an API change.

New patch attached.

-- 
Clément B.
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