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

Steve Lhomme robux4 at ycbcr.xyz
Thu Jan 18 14:02:08 CET 2018


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

Fixes #18916
---
 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 0b7967d48b..e442d8435f 100644
--- a/modules/demux/mkv/matroska_segment_parse.cpp
+++ b/modules/demux/mkv/matroska_segment_parse.cpp
@@ -1510,6 +1510,8 @@ 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") {
-- 
2.14.2



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