[FFmpeg-cvslog] example: update muxing example to purple API

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sat Jan 28 08:28:44 2012 +0100| [afe9105f66259d12fe8fa17b9be3494b3996d287] | committer: Michael Niedermayer

example: update muxing example to purple API

Reviewed-by: Paul B Mahol <onemda at gmail.com>
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=afe9105f66259d12fe8fa17b9be3494b3996d287
---

 doc/examples/muxing.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/doc/examples/muxing.c b/doc/examples/muxing.c
index e72bfac..e9add2d 100644
--- a/doc/examples/muxing.c
+++ b/doc/examples/muxing.c
@@ -499,7 +499,7 @@ int main(int argc, char **argv)
     }
 
     /* write the stream header, if any */
-    av_write_header(oc);
+    avformat_write_header(oc, NULL);
     picture->pts = 0;
     for(;;) {
         /* compute current audio and video time */