ffmpeg | branch: master | Marton Balint <c...@passwd.hu> | Fri Mar 1 00:09:43 2024 +0100| [0aaee4741ce0c10ca09f5d17194b58d0cf0ebece] | committer: Marton Balint
avformat/mpegts: detect synchronous metadata KLV more reliably The mpegts code historically tries to strip (the first) metadata access unit header from synchronous KLV metadata, but the detection for such streams was unreliable causing strips of asynchronous metadata or ID3 as well. MISB ST 1402 specifies required stream type, stream id and registration descriptor (which eventually maps to the codec ID) so let's use all of these for reliable detection. Fixes a regression caused by 468615f2045da325e0f73e8e668d49cf456ccb37. Fixes ticket #10828, #10883. Signed-off-by: Marton Balint <c...@passwd.hu> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0aaee4741ce0c10ca09f5d17194b58d0cf0ebece --- libavformat/mpegts.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c index 836d5dd5a3..01f6c04223 100644 --- a/libavformat/mpegts.c +++ b/libavformat/mpegts.c @@ -1307,8 +1307,11 @@ skip: p += sl_header_bytes; buf_size -= sl_header_bytes; } - if (pes->st->codecpar->codec_id == AV_CODEC_ID_SMPTE_KLV && buf_size >= 5) { - /* skip metadata access unit header */ + if (pes->stream_type == STREAM_TYPE_METADATA && + pes->stream_id == STREAM_ID_METADATA_STREAM && + pes->st->codecpar->codec_id == AV_CODEC_ID_SMPTE_KLV && + buf_size >= 5) { + /* skip metadata access unit header - see MISB ST 1402 */ pes->pes_header_size += 5; p += 5; buf_size -= 5; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".