mpegts: Always honor a registration descriptor if present and there is no other codec information.

libavformat/mpegts.c

@@ -1349,8 +1349,7 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
     case 0x05: /* registration descriptor */
         st->codec->codec_tag = bytestream_get_le32(pp);
         av_dlog(fc, "reg_desc=%.4s\n", (char*)&st->codec->codec_tag);
-        if (st->codec->codec_id == CODEC_ID_NONE &&
-            stream_type == STREAM_TYPE_PRIVATE_DATA)
+        if (st->codec->codec_id == CODEC_ID_NONE)
             mpegts_find_stream_type(st, st->codec->codec_tag, REGD_types);
         break;
     default: