@@ -52,6 +52,7 @@ static int read_packet(AVFormatContext *s,

     int sync;

     uint16_t* src=buf;

     int i, j, ret;

+    int64_t pos= avio_tell(pb);

     if(url_feof(pb))

         return AVERROR_EOF;

@@ -77,6 +78,7 @@ static int read_packet(AVFormatContext *s,

     flush_put_bits(&pbo);

     pkt->duration=1;

+    pkt->pos = pos;

     return 0;

 }