[vlc-commits] demux:mkv: detect bogus MPEG-2 framing from MakeMKV

[Steve Lhomme]

vlc | branch: master | Steve Lhomme <robux4 at ycbcr.xyz> | Thu Jan 18 14:02:08 2018 +0100| [c3ac6661b7cdb2432d53216379969ded65a468ed] | committer: Steve Lhomme

demux:mkv: detect bogus MPEG-2 framing from MakeMKV

This software doesn't put mpeg-2 frames properly in mkv frames. Without a
packetizer we get a lot of decoding issues.

Fixes #18916

> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=c3ac6661b7cdb2432d53216379969ded65a468ed
---

 modules/demux/mkv/matroska_segment_parse.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/modules/demux/mkv/matroska_segment_parse.cpp b/modules/demux/mkv/matroska_segment_parse.cpp
index 6683eec79c..f4d3900b7f 100644
--- a/modules/demux/mkv/matroska_segment_parse.cpp
+++ b/modules/demux/mkv/matroska_segment_parse.cpp
@@ -1517,6 +1517,8 @@ bool matroska_segment_c::TrackInit( mkv_track_t * p_tk )
         }
         S_CASE("V_MPEG2") {
             vars.p_fmt->i_codec = VLC_CODEC_MPGV;
+            if (strstr(vars.obj->psz_muxing_application,"libmakemkv"))
+                vars.p_fmt->b_packetized = false;
             fill_extra_data( vars.p_tk, 0 );
         }
         S_CASE("V_THEORA") {