[FFmpeg-trac] #1158(avformat:open): support iXML riff chunk

[FFmpeg]

#1158: support iXML riff chunk
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             Reporter:  dave rice    |                    Owner:  (none)
                 Type:  enhancement  |                   Status:  open
             Priority:  wish         |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  metadata     |               Blocked By:
  iXML riff                          |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Andreas Turnwald):

 Replying to [comment:4 richardpl]:
 > Do you want that iXML chunk is just added as metadata without any
 parsing? - which is trivial to implement.

 Yes, it would be ideal, if both existing BEXT and iXML chunks could be
 handed from input to output file without parsing (for WAV and flac outputs
 at least).

 It had been stated above, that bext chunk metadata would be already
 supported. As of ffmpeg v4.2.1 this is only partly true: BEXT chunk is
 being parsed and displayed correctly (see screenshot), but it is being
 output to different locations (e.g. ICMT), which cannot be interpreted by
 common professional audio/video software, which look into the BEXT and
 iXML chunk only.

 Thank you, Andi
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Ticket URL: <https://trac.ffmpeg.org/ticket/1158#comment:5>
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