Don't access RMContext directly in rdt.c. Rather, use the return value of

ff_rm_parse_packet() to indicate whether more audio packets are available
in the demuxer from the last RM frame, and save that in the RDT parsing
context. See patch/discussion in "[PATCH] rdt.c: don't access RMContext"
on ML.

Originally committed as revision 16110 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/rmdec.c

@@ -644,7 +644,7 @@ ff_rm_parse_packet (AVFormatContext *s, ByteIOContext *pb,
     if (*flags & 2)
         pkt->flags |= PKT_FLAG_KEY;
 
-    return 0;
+    return st->codec->codec_type == CODEC_TYPE_AUDIO ? rm->audio_pkt_cnt : 0;
 }
 
 void