lavf: flush the output AVIOContext in av_write_trailer().

This is consistent with stdio and is what we want to do in all cases.

Fixes a bug in the voc muxer which didn't flush in write_trailer()
previously. This is the cause of the change in the test results.

1 files changed, 0 insertions, 2 deletions

diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 441da5c3c2..90c5806f50 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -3237,8 +3237,6 @@ static int mov_write_trailer(AVFormatContext *s)
 
     }
 
-    avio_flush(pb);
-
     av_freep(&mov->tracks);
 
     return res;