[FFmpeg-cvslog] movenc: Ensure no separate moof written for empty track

[Hu Weiwen]

ffmpeg | branch: master | Hu Weiwen <sehuww at mail.scut.edu.cn> | Thu Aug 12 12:43:54 2021 +0800| [2b77a2f723cd0af441db26dd5ee632af3040e7cb] | committer: Martin Storsjö

movenc: Ensure no separate moof written for empty track

track->mdat_buf can be not NULL while the track is still empty if the
last packet write failed.

Signed-off-by: Hu Weiwen <sehuww at mail.scut.edu.cn>
Signed-off-by: Martin Storsjö <martin at martin.st>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2b77a2f723cd0af441db26dd5ee632af3040e7cb
---

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

diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index bcc202300b..a460cd9ada 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -5422,7 +5422,7 @@ static int mov_flush_fragment(AVFormatContext *s, int force)
             duration = track->start_dts + track->track_duration -
                        track->cluster[0].dts;
         if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) {
-            if (!track->mdat_buf)
+            if (!track->entry)
                 continue;
             mdat_size = avio_tell(track->mdat_buf);
             moof_tracks = i;