replace calls to url_feof() with avio_feof()

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/vplayerdec.c

@@ -65,7 +65,7 @@ static int vplayer_read_header(AVFormatContext *s)
     st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
     st->codec->codec_id   = AV_CODEC_ID_VPLAYER;
 
-    while (!url_feof(s->pb)) {
+    while (!avio_feof(s->pb)) {
         char line[4096];
         char *p = line;
         const int64_t pos = avio_tell(s->pb);