libavformat: Allow calling av_write_trailer with a NULL AVIOContext

Signed-off-by: Martin Storsjö <martin@martin.st>
10 years ago · 4895aa65c6
parent cee4490b52
commit 4895aa65c6
1 changed files with 1 additions and 1 deletions
--- a/libavformat/mux.c
+++ b/libavformat/mux.c
@ -624,7 +624,7 @@ int av_write_trailer(AVFormatContext *s)
    if (s->oformat->write_trailer)
        ret = s->oformat->write_trailer(s);

-    if (!(s->oformat->flags & AVFMT_NOFILE))
+    if (!(s->oformat->flags & AVFMT_NOFILE) && s->pb)
        avio_flush(s->pb);

 fail: