[FFmpeg-trac] #9642(avformat:new): ogg metadata title gets appended instead of being reset in a concatenated ogg stream playback

[FFmpeg]

#9642: ogg metadata title gets appended instead of being reset in a concatenated
ogg stream playback
-------------------------------------+-------------------------------------
             Reporter:  Shreesh      |                     Type:  defect
  Adiga                              |
               Status:  new          |                 Priority:  normal
            Component:  avformat     |                  Version:
                                     |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 When playing an online ogg stream like https://scenestream.io/opus in mpv,
 the title metadata seems to get appended instead of being reset. This was
 reported in mpv's issue tracker https://github.com/mpv-
 player/mpv/issues/9799

 This behavior seems to have been introduced in this commit
 https://github.com/FFmpeg/FFmpeg/commit/0dc66553adb8b7dc89bc1118da0b0661a7ed1c09
 which mentions concatenating performers, but this seems to be affecting
 Title as well in a concatenated ogg stream playback.

 How to reproduce:
 {{{
 %  mpv https://scenestream.io/opus
 Not seekable, but enabling seeking on user request.
  (+) Audio --aid=1 'Slash [ru] - Mood's Satellite' (opus 2ch 48000Hz)
 File tags:
  Title: Slash [ru] - Mood's Satellite
 AO: [pulse] 48000Hz stereo 2ch float
 A: 00:02:29 / 00:02:30 (99%) Cache: 1.0s/42KB
 [ffmpeg/demuxer] ogg: Packet processing failed: Invalid data found when
 processing input
 [lavf] error reading packet: Invalid data found when processing input.
 A: 00:02:30 / 00:02:35 (97%) Cache: 4.4s/114KB
 [lavf] Linearizing discontinuity: -0.080000 -> 167.120000
 A: 00:02:35 / 00:02:41 (97%) Cache: 5.2s/186KB
 File tags:
  Title: Slash [ru] - Mood's Satellite;Malmen, tHiborg - Fair Weather
 Friend (Forever)
 A: 00:03:26 / 00:03:32 (97%) Cache: 5.6s/206KB

 Exiting... (Quit)
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9642>
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