rdt: Use a separate variable to clarify the different value namespaces

The original flags variable contains rtpdec flags, while the
rmflags variable contains RM flag bits which have a completely
different definition.
Signed-off-by: Martin Storsjö <martin@martin.st>

libavformat/rdt.c

@@ -299,12 +299,12 @@ rdt_parse_packet (AVFormatContext *ctx, PayloadContext *rdt, AVStream *st,
     AVIOContext pb;
 
     if (rdt->audio_pkt_cnt == 0) {
-        int pos;
+        int pos, rmflags;
 
         ffio_init_context(&pb, buf, len, 0, NULL, NULL, NULL, NULL);
-        flags = (flags & RTP_FLAG_KEY) ? 2 : 0;
+        rmflags = (flags & RTP_FLAG_KEY) ? 2 : 0;
         res = ff_rm_parse_packet (rdt->rmctx, &pb, st, rdt->rmst[st->index], len, pkt,
-                                  &seq, flags, *timestamp);
+                                  &seq, rmflags, *timestamp);
         pos = avio_tell(&pb);
         if (res < 0)
             return res;