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

[FFmpeg]

#11514: Cuvid decoder problem with deinterlacing
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             Reporter:  ua0lnj   |                     Type:  defect
               Status:  new      |                 Priority:  normal
            Component:  avcodec  |                  Version:  git-master
             Keywords:  cuvid    |               Blocked By:
             Blocking:           |  Reproduced by developer:  0
Analyzed by developer:  0        |
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 Summary of the bug:
 After commit 99e2af4
 https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/99e2af4e7837ca09b97d93a562dc12947179fc48
 I have frame jerking with vdr-plugin-softhddevice and vdr-plugin-
 softhdcuvid.(https://github.com/ua0lnj/vdr-plugin-softhddevice,
 https://github.com/jojo61/vdr-plugin-softhdcuvid), with interlaced video
 and cuvid deinterlace bob or adaptive. No errors in libavcodec debug log.
 But ffplay works without problems: DISPLAY=:0 ffplay -x 1920 -y 1080
 -vcodec h264_cuvid -deint 2 -drop_second_field 0 -v debug ./00001.ts

 The only difference i found in the logs:
 ffplay:
 [h264_cuvid @ 0x7139edffb2c0] Format nv12 chosen by get_format().
 [h264_cuvid @ 0x7139edffb2c0] Formats: Original: nv12 | HW: nv12 | SW:
 nv12

 softhddevice:
 [h264_cuvid @ 0x7a36343b0900] Format cuda chosen by get_format().
 [h264_cuvid @ 0x7a36343b0900] Formats: Original: nv12 | HW: cuda | SW:
 nv12

 How to reproduce:
 ffmpeg version latest from git, Nvidia driver 570, Ubuntu 24.04.
 vdr with vdr-plugin-softhddevice, -v cuvid.

 I know about nvdec and softhddevice supports it too, here we are talking
 about cuvid.
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Ticket URL: <https://trac.ffmpeg.org/ticket/11514>
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