fixed 'file:' in URLs

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@1290 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavformat/file.c

@@ -35,6 +35,8 @@ static int file_open(URLContext *h, const char *filename, int flags)
     int access;
     int fd;
 
+    strstart(filename, "file:", &filename);
+
     if (flags & URL_WRONLY) {
         access = O_CREAT | O_TRUNC | O_WRONLY;
     } else {