[FFmpeg-cvslog] avformat/mpegts: Do not trust BSSD descriptor, it is sometimes not an S302M stream

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Mon Jun  6 21:43:01 2016 +0200| [a5eb70ad9569c62158b4b2d18f2143db791f7d27] | committer: Michael Niedermayer

avformat/mpegts: Do not trust BSSD descriptor, it is sometimes not an S302M stream

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a5eb70ad9569c62158b4b2d18f2143db791f7d27
---

 libavformat/mpegts.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index 203d79b..d38b8af 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -1804,8 +1804,11 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
     case 0x05: /* registration descriptor */
         st->codecpar->codec_tag = bytestream_get_le32(pp);
         av_log(fc, AV_LOG_TRACE, "reg_desc=%.4s\n", (char *)&st->codecpar->codec_tag);
-        if (st->codecpar->codec_id == AV_CODEC_ID_NONE || st->request_probe > 0)
+        if (st->codecpar->codec_id == AV_CODEC_ID_NONE || st->request_probe > 0) {
             mpegts_find_stream_type(st, st->codecpar->codec_tag, REGD_types);
+            if (st->codecpar->codec_tag == MKTAG('B', 'S', 'S', 'D'))
+                st->request_probe = 50;
+        }
         break;
     case 0x52: /* stream identifier descriptor */
         st->stream_identifier = 1 + get8(pp, desc_end);