[SCM] libav/experimental: Document url_exist().

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit 8a36b59ba6b1da899a4c90ea8b5d547a7ac90581
Author: Stefano Sabatini <stefano.sabatini-lala at poste.it>
Date:   Mon Mar 29 22:29:14 2010 +0000

    Document url_exist().
    
    Originally committed as revision 22725 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavformat/avio.h b/libavformat/avio.h
index fec65fd..58e6eab 100644
--- a/libavformat/avio.h
+++ b/libavformat/avio.h
@@ -139,7 +139,12 @@ int64_t url_seek(URLContext *h, int64_t pos, int whence);
  */
 int url_close(URLContext *h);
 
+/**
+ * Returns a non-zero value if the resource indicated by url
+ * exists, 0 otherwise.
+ */
 int url_exist(const char *url);
+
 int64_t url_filesize(URLContext *h);
 
 /**

-- 
Libav/FFmpeg packaging