From 31e11451f74f29b9a962723b60ddba6590d0e87c Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Fri, 4 Nov 2005 23:50:11 +0000
Subject: [PATCH] allow NULL write_header() and write_trailer()
Originally committed as revision 4675 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavformat/utils.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/libavformat/utils.c b/libavformat/utils.c
index c49547cdb50..3848fb1f6d3 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -2253,9 +2253,11 @@ int av_write_header(AVFormatContext *s)
}
}
- ret = s->oformat->write_header(s);
- if (ret < 0)
- return ret;
+ if(s->oformat->write_header){
+ ret = s->oformat->write_header(s);
+ if (ret < 0)
+ return ret;
+ }
/* init PTS generation */
for(i=0;i<s->nb_streams;i++) {
@@ -2540,7 +2542,8 @@ int av_write_trailer(AVFormatContext *s)
goto fail;
}
- ret = s->oformat->write_trailer(s);
+ if(s->oformat->write_trailer)
+ ret = s->oformat->write_trailer(s);
fail:
if(ret == 0)
ret=url_ferror(&s->pb);
--
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