Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@gmail.com>
---
 libavformat/movenc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 63adae5e0a..a90bbfa458 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) {
         avcodec_parameters_free(&mov->tracks[mov->chapter_track].par);
     }
-- 
2.25.1

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