[FFmpeg-trac] #11411(avformat:open): VVC support in Matroska

[FFmpeg]

#11411: VVC support in Matroska
-------------------------------------+-------------------------------------
             Reporter:               |                    Owner:  (none)
  MasterQuestionable                 |
                 Type:  enhancement  |                   Status:  open
             Priority:  wish         |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  matroska     |               Blocked By:
  vvc                                |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  1            |
-------------------------------------+-------------------------------------
Changes (by MasterQuestionable):

 * keywords:  vvc matroska => matroska vvc


Old description:

> ͏    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?

New description:

 ͏= VVC generated by FFmpeg not playing by same-bundled FFplay? =

 ͏    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?

--
Comment:

 ͏    Well... much surprising.
 ͏    I believe Matroska is designed to support arbitrary codecs?

 ͏    So only MP4 support yet?
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11411#comment:4>
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