[FFmpeg-trac] #11514(avcodec:new): Cuvid decoder problem with deinterlacing

[FFmpeg]

#11514: Cuvid decoder problem with deinterlacing
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             Reporter:  ua0lnj      |                    Owner:  (none)
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:  cuvid       |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by ua0lnj):

 If I change
 https://git.ffmpeg.org/gitweb/ffmpeg.git/blob/99e2af4e7837ca09b97d93a562dc12947179fc48:/libavcodec/cuviddec.c#l457

 to:
  return ((av_fifo_can_read(ctx->frame_queue) + shift) >> shift)***2** +
 ctx->cuparseinfo.ulMaxDisplayDelay >= ctx->nb_surfaces;

 then all works fine.
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Ticket URL: <https://trac.ffmpeg.org/ticket/11514#comment:1>
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