From abbae514e18bde2c24f9182cb1eb091dc2801331 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Mon, 5 May 2008 09:17:56 +0000
Subject: [PATCH] Check url_seek() in url_open().

Originally committed as revision 13061 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/avio.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libavformat/avio.c b/libavformat/avio.c
index b6478c4f3b..27a6a7f6b1 100644
--- a/libavformat/avio.c
+++ b/libavformat/avio.c
@@ -113,6 +113,12 @@ int url_open(URLContext **puc, const char *filename, int flags)
         *puc = NULL;
         return err;
     }
+
+    //We must be carefull here as url_seek() could be slow, for example for http
+    if(   (flags & (URL_WRONLY | URL_RDWR))
+       || !strcmp(proto_str, "file"))
+        if(!uc->is_streamed && url_seek(uc, 0, SEEK_SET) < 0)
+            uc->is_streamed= 1;
     *puc = uc;
     return 0;
  fail: