[FFmpeg-trac] #2785(avformat:new): Matroska muxer produces non spec conformant files when adding chapters
FFmpeg
trac at avcodec.org
Mon Jul 15 19:59:17 CEST 2013
#2785: Matroska muxer produces non spec conformant files when adding chapters
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Reporter: jamal | Owner:
Type: defect | Status: new
Priority: normal | Component: avformat
Version: git-master | Resolution:
Keywords: mkv | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by jamal):
Looking at http://matroska.org/technical/specs/tagging/example-video.html
it would seem that at least one SimpleTag for things like "title" or such
are needed.
Currently, mkv_write_simpletag() in matroskaenc.c
[http://git.videolan.org/?p=ffmpeg.git;a=blob;f=libavformat/matroskaenc.c;h=7efda5ab6bbda78153947d39dfcef55d6fb7c8bf;hb=HEAD#l868
is called for everything except "title" and "stereo_mode"].
By letting it call mkv_write_simpletag() for "title" tags when they are
for chapters, the file validates.
It also validates if i let it call mkv_write_simpletag() for any "title"
tag whatsoever, be it for chapter or not. So no idea why the line i linked
above is filtering them.
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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2785#comment:4>
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