[FFmpeg-trac] #11411(avcodec:new): VVC generated by FFmpeg not playing by same-bundled FFplay?

[FFmpeg]

#11411: VVC generated by FFmpeg not playing by same-bundled FFplay?
-------------------------------------+-------------------------------------
             Reporter:               |                     Type:  defect
  MasterQuestionable                 |
               Status:  new          |                 Priority:  important
            Component:  avcodec      |                  Version:  git-
             Keywords:  libvvenc     |  master
  vvc                                |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  1            |
-------------------------------------+-------------------------------------
 ͏    2025-01-08-git-251de1791e-full_build-www.gyan.dev

 ͏    `ffmpeg -v debug -hide_banner -nostdin -nostats -f lavfi -i
 "testsrc2=1920x1080:30:d=5" -c:v libvvenc "Out.mkv"`
 ͏    `ffplay -v trace "Out.mkv"`
 [vvc] nal_unit_type: 14(VPS_NUT), nuh_layer_id: 36, temporal_id: 5
 [vvc] nal_unit_type: 15(SPS_NUT), nuh_layer_id: 0, temporal_id: 0
 [vvc] nal_unit_type: 16(PPS_NUT), nuh_layer_id: 0, temporal_id: 0
 [vvc] Invalid value at vps_layer_id[i]: bitstream ended.
 [vvc] Failed to read unit 0 (type 14).
 [matroska,webm] Failed to open codec in avformat_find_stream_info
 [NULL] Failed to parse extradata.
 [NULL] nal_unit_type: 20(AUD_NUT), nuh_layer_id: 0, temporal_id: 0
 [NULL] nal_unit_type: 15(SPS_NUT), nuh_layer_id: 0, temporal_id: 0
 [NULL] nal_unit_type: 16(PPS_NUT), nuh_layer_id: 0, temporal_id: 0
 [NULL] nal_unit_type: 17(APS_PREFIX), nuh_layer_id: 0, temporal_id: 0
 [NULL] nal_unit_type: 7(IDR_W_RADL), nuh_layer_id: 0, temporal_id: 0

 ͏    Out of curiosity I decided to test...
 ͏    Very-slow-broken Video Codec?
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Ticket URL: <https://trac.ffmpeg.org/ticket/11411>
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