[FFmpeg-cvslog] avformat/mov: Only fail for STCO/STSC contradictions if both exist

Michael Niedermayer git at videolan.org
Mon May 21 04:22:35 EEST 2018


ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Tue May 15 17:07:00 2018 +0200| [2c2d689c56646cce64d02a3b75f61c12c5589260] | committer: Michael Niedermayer

avformat/mov: Only fail for STCO/STSC contradictions if both exist

Fixes regression with playback of GF9720Repeal20the20Eighth20with20Helen20Linehan.m4a
See: crbug 822666

Found-by: "Mattias Wadman <mattias.wadman at gmail.com>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2c2d689c56646cce64d02a3b75f61c12c5589260
---

 libavformat/mov.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index 4848a106f2..a078bf4712 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -4148,7 +4148,7 @@ static int mov_read_trak(MOVContext *c, AVIOContext *pb, MOVAtom atom)
                st->index);
         return 0;
     }
-    if (sc->stsc_count && sc->stsc_data[ sc->stsc_count - 1 ].first > sc->chunk_count) {
+    if (sc->chunk_count && sc->stsc_count && sc->stsc_data[ sc->stsc_count - 1 ].first > sc->chunk_count) {
         av_log(c->fc, AV_LOG_ERROR, "stream %d, contradictionary STSC and STCO\n",
                st->index);
         return AVERROR_INVALIDDATA;



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