[FFmpeg-devel] Segfault calling av_interleaved_write_frame

[Jonathan Noble]

Oh, it wasn't via ffmpeg. I was using the library. What is the correct dev
mailing list?

On Sat, 18 Jan 2020 at 21:45, Andreas Rheinhardt <
andreas.rheinhardt at gmail.com> wrote:

> On Sat, Jan 18, 2020 at 10:40 PM Jonathan Noble <jonnobleuk at gmail.com>
> wrote:
>
> > Hello,
> >
> > I found I was getting sigsegv when calling av_interleaved_write_frame().
> >
> > From a18f4cb5b86392c5c161878daea8e4b1204881eb Mon Sep 17 00:00:00 2001
> > From: jon noble <jonnobleuk at gmail.com>
> > Date: Sat, 18 Jan 2020 21:33:11 +0000
> > Subject: [PATCH] libavformat/mux: prevent segfault in
> >  compute_muxer_pkt_fields()
> >
> > ---
> >  libavformat/mux.c | 8 +++++---
> >  1 file changed, 5 insertions(+), 3 deletions(-)
> >
> > diff --git a/libavformat/mux.c b/libavformat/mux.c
> > index 8ab5ea8c2b..ea79981fe8 100644
> > --- a/libavformat/mux.c
> > +++ b/libavformat/mux.c
> > @@ -598,9 +598,11 @@ static int compute_muxer_pkt_fields(AVFormatContext
> > *s, AVStream *st, AVPacket *
> >              av_log(s, AV_LOG_WARNING, "Encoder did not produce proper
> pts,
> > making some up.\n");
> >              warned = 1;
> >          }
> > -        pkt->dts =
> > -//        pkt->pts= st->cur_dts;
> > -            pkt->pts = st->internal->priv_pts->val;
> > +        if (st->internal->priv_pts == NULL) {
> > +          av_log(s, AV_LOG_WARNING, "Null private stream data.\n");
> > +          return AVERROR(EINVAL);
> > +        }
> > +        pkt->dts = pkt->pts = st->internal->priv_pts->val;
> >      }
> >
> >      //calculate dts from pts
> > --
> > 2.25.0
> >
> > Can you give us the command line together with the necessary sample files
> that allow to reproduce this segfault?
>
> - Andreas
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