mov: compute avg_frame_rate only if duration is known

Fixes an assert in fuzzed sample sample.mp4_s265930.
12 years ago · 80b6b31417
parent 480be07a96
commit 80b6b31417
1 changed files with 3 additions and 2 deletions
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@ -2052,6 +2052,7 @@ static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
                                             ((double)st->codec->width * sc->height), INT_MAX);
        }

+        if (st->duration != AV_NOPTS_VALUE)
            av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
                      sc->time_scale*st->nb_frames, st->duration, INT_MAX);