[FFmpeg-trac] #11151(undetermined:new): The av1 decoding results of ffmpeg+vaapi output and software libdav1 output are inconsistent

[FFmpeg]

#11151: The av1 decoding results of ffmpeg+vaapi output and software libdav1 output
are inconsistent
-------------------------------------+-------------------------------------
             Reporter:  zlma         |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 with the latest ffmpeg+vaapi decoder, the decoding result of av1 bitstream
 is not aligned with ffmpeg dav1d decoder.

 The test bitstream is in https://code.videolan.org/videolan/dav1d-test-
 data/-/blob/0b1ae65ec0c949bb1aac496d1b3f8bde5ffb10b8/8-bit/issues/48_delayed.ivf.
 And the first mismatching frame is 121
 How to reproduce:
 {{{
 First build ffmpeg with vaapi and libdav1d support.

 $ffmpeg -vaapi_device /dev/dri/renderD128 -hwaccel vaapi -i
 48_delayed_20201006.ivf -f segment -segment_time 0.01 -frames 557 -pix_fmt
 yuv420p output_%04d.yuv
 $md5sum output_0121.yuv

 $ffmpeg -i 48_delayed_20201006.ivf -f segment -segment_time 0.01 -frames
 557 -pix_fmt yuv420p output_%04d.yuv
 $md5sum output_0121.yuv

 ffmpeg version
 built on N-116752-g507c2a5774 (c) 2000-2024 the FFmpeg developers
 }}}
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11151>
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