[FFmpeg-trac] #9532(avcodec:new): Blocks with VDPAU and H264/1080i

FFmpeg trac at avcodec.org
Fri Nov 26 17:04:20 EET 2021

#9532: Blocks with VDPAU and H264/1080i
             Reporter:  Klaas de     |                    Owner:  (none)
  Waal                               |
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avcodec
              Version:  4.4.1        |               Resolution:
             Keywords:  blocks       |               Blocked By:
  vdpau h264 interlaced              |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
Comment (by James):

 That commit can't be reverted as the old code was invalid. For a hwaccel
 pixel format like VDPAU it was in fact not doing anything at all. The new
 code is now properly copying the previous frame and using it as reference
 in error concealing.

 Does the console show any decoding errors when you see these artifacts?
 Before it would do nothing and silently keep going, but now if it can't
 create a new reference it will stop decoding the frame.
Ticket URL: <https://trac.ffmpeg.org/ticket/9532#comment:1>
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