[FFmpeg-trac] #1071(avcodec:new): Error return code from hardware decoder is ignored in h264 decoder

FFmpeg trac at avcodec.org
Fri Mar 16 07:16:47 CET 2012

#1071: Error return code from hardware decoder is ignored in h264 decoder
             Reporter:  wl2776      |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:  h264 dxva2  |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |

Comment (by wl2776):

 Replying to [comment:8 cehoyos]:
 > Replying to [comment:7 wl2776]:
 > > So, I think I should change the title of this bug report.
 > > The proper problem description would be -
 > >   Hardware assisted decoding returns frames, filled entirely with
 zeros, causing sometimes bad picture flickering.
 > But iiuc this happens because the hardware fails (does not actually
 return a buffer containing decoded picture data) or do you believe there
 is a bug in FFmpeg?

 Ok, well, for now, I should assume that hardware decoder silently fails,
 without any indications. I tried DXVA2 Status reporting facility, it
 reports that everything is OK.
 I cannot surely say about any bugs in FFmpeg, I don't know if the HW
 decoder fails because of FFmpeg sends it incorrect data or because data is
 invalid per se.

 So, thank you for very useful discussion, sorry for disturbance, I think,
 this ticket should be closed now.

Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1071#comment:9>
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