[FFmpeg-trac] #3491(undetermined:new): MKV muxer corrupts subtitles

[FFmpeg]

#3491: MKV muxer corrupts subtitles
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             Reporter:  ValdikSS     |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by ValdikSS):

 Replying to [comment:6 Cigaes]:
 > That happens because, by default, the Matroska demuxer uses some legacy
 format for demuxed ASS packets.
 > You can get it to use the newer format, and thus preserve the read
 order, by adding {{{-c:s ass}}} as input option.

 It doesn't work with this subtitles.
 {{{
 [ass @ 0x1156660] ASS encoder supports only one ASS rectangle field.
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/3491#comment:7>
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