[FFmpeg-cvslog] avformat/mov: Skip stsd adjustment without chunks

Michael Niedermayer git at videolan.org
Fri May 10 22:03:31 EEST 2019


ffmpeg | branch: release/3.2 | Michael Niedermayer <michael at niedermayer.cc> | Tue Apr 16 22:15:14 2019 +0200| [d2035634943f82dfebccb52fe47692c1890c208e] | committer: Michael Niedermayer

avformat/mov: Skip stsd adjustment without chunks

Fixes: Assertion failure
Fixes: clusterfuzz-testcase-minimized-media_pipeline_integration_fuzzer-5683096400822272

Found-by: Clusterfuzz
Reported-by: Dan Sanders <sandersd at google.com>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit 18a567c369d74af5ef651b07c4c5615f5598616b)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d2035634943f82dfebccb52fe47692c1890c208e
---

 libavformat/mov.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index f22a407f49..df9640fa6d 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -6002,6 +6002,7 @@ static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp,
     }
 
     /* adjust stsd index */
+    if (sc->chunk_count) {
     time_sample = 0;
     for (i = 0; i < sc->stsc_count; i++) {
         int next = time_sample + mov_get_stsc_samples(sc, i);
@@ -6012,6 +6013,7 @@ static int mov_seek_stream(AVFormatContext *s, AVStream *st, int64_t timestamp,
         }
         time_sample = next;
     }
+    }
 
     ret = mov_seek_auxiliary_info(s, sc);
     if (ret < 0) {



More information about the ffmpeg-cvslog mailing list