[FFmpeg-cvslog] avformat/mov: Fix memleak

[Andreas Rheinhardt]

ffmpeg | branch: release/4.2 | Andreas Rheinhardt <andreas.rheinhardt at gmail.com> | Mon Sep 16 17:54:59 2019 +0200| [d1fe26f2b75088bf29b8ed27ad43146e1666e38e] | committer: Andreas Rheinhardt

avformat/mov: Fix memleak

When the mov/mp4 demuxer encounters an error during decrypting a packet,
it returns the error, yet doesn't free the packet, so that the packet
leaks. This has been fixed in this commit.

Fixes the memleaks from ticket #8150.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit 34bd293b014efc816bd7aab068d7f9e4a6d3011a)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d1fe26f2b75088bf29b8ed27ad43146e1666e38e
---

 libavformat/mov.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index da2164e408..da0d90733f 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -7832,8 +7832,10 @@ static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
         aax_filter(pkt->data, pkt->size, mov);
 
     ret = cenc_filter(mov, st, sc, pkt, current_index);
-    if (ret < 0)
+    if (ret < 0) {
+        av_packet_unref(pkt);
         return ret;
+    }
 
     return 0;
 }