[FFmpeg-trac] #3043(avcodec:new): RFE: Implement updated comment header packets in OGG/vorbis streams

[FFmpeg]

#3043: RFE: Implement updated comment header packets in OGG/vorbis streams
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             Reporter:  mathstuf  |                     Type:  enhancement
               Status:  new       |                 Priority:  normal
            Component:  avcodec   |                  Version:  2.0.1
             Keywords:  vorbis    |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  0         |
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 I am looking to implement this feature, but am unsure of how best to
 approach it. It looks like the best thing to do would be to have
 libavcodec/vorbisdec.c:1741 set some flag to indicate that a new header
 should be parsed from the stream using libavformat (since this is where
 the comment/metadata parsing currently exists and it looks like just
 moving it into libavcodec would get pretty hairy).

 The end goal is to have mpv output new titles, artist, etc. updates from
 an mpd stream (currently, only the first metadata packet is used).

 Tracked for mpd on its issue tracker[1].

 [1]https://github.com/mpv-player/mpv/issues/281

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/3043>
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