ffmpeg fails to decode av1 file if --enable-keyframe-filtering=2 option is set

[Rikitiki]

Summary of the bug:
How to reproduce:

% ffmpeg.exe -hide_banner -xerror -abort_on empty_output -i KF=2.mkv -map 0:0 -filter:v showinfo=checksum=False -f null -
ffmpeg version 5.0-full_build-www.gyan.dev

examples:

  KF=1.mkv - the file encoded with --enable-keyframe-filtering=1
  KF=2.mkv - the file encoded with --enable-keyframe-filtering=2

output:

[libdav1d @ 000001e09933f9c0] libdav1d 0.9.2-106-g19326c4
[matroska,webm @ 000001e09932cdc0] Could not find codec parameters for stream 0 (Video: av1 (libdav1d) (Main), none(tv), 32x18 [SAR 1:1 DAR 16:9]): unspecified pixel format
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, matroska,webm, from 'D:\temp\KF=2.mkv':
  Metadata:
    encoder         : libwebm-0.3.0.0
    ENCODER_SETTINGS: version:3.3.0 --threads=1 --passes=1 --end-usage=q --cpu-used=9 --lag-in-frames=1 --enable-keyframe-filtering=2 --color-primaries=unspecified --transfer-characteristics=unspecified --matrix-coefficients=unspecified --webm --cq-level=30
  Duration: 00:00:08.30, start: 0.000000, bitrate: 8 kb/s
  Stream #0:0(eng): Video: av1 (Main), none(tv), 32x18 [SAR 1:1 DAR 16:9], 30 fps, 30 tbr, 1k tbn (default)
[libdav1d @ 000001e09932d580] libdav1d 0.9.2-106-g19326c4
Stream mapping:
  Stream #0:0 -> #0:0 (av1 (libdav1d) -> wrapped_avframe (native))
Press [q] to stop, [?] for help
Conversion failed!

[Rikitiki]

It is mentioned:

until the ffmpeg folks fix the KF=2 behavior

​https://forum.doom9.org/showthread.php?t=183907

[James]

Should be fixed in 3e186148ca9ac0c47cec253fdea62b48c9feadd2.