[FFmpeg-cvslog] avformat/movenc: Fix segfault upon allocation error

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at gmail.com> | Mon Sep 28 16:00:56 2020 +0200| [4106013523f46824d32fd5b469ea264fbdfdb591] | committer: Andreas Rheinhardt

avformat/movenc: Fix segfault upon allocation error

Reviewed-by: Jan Ekström <jeebjp at gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4106013523f46824d32fd5b469ea264fbdfdb591
---

 libavformat/movenc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 20768cd45f..2006fcee4b 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -6254,6 +6254,9 @@ static void mov_free(AVFormatContext *s)
     MOVMuxContext *mov = s->priv_data;
     int i;
 
+    if (!mov->tracks)
+        return;
+
     if (mov->chapter_track) {
         if (mov->tracks[mov->chapter_track].par)
             av_freep(&mov->tracks[mov->chapter_track].par->extradata);