[FFmpeg-trac] #6989(avcodec:closed): Hwaccel cuvid fails with “Error creating a NVDEC decoder: 1”

[FFmpeg]

#6989: Hwaccel cuvid fails with “Error creating a NVDEC decoder: 1”
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             Reporter:  tkalliom     |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:  invalid
             Keywords:  hwaccel      |               Blocked By:
  cuda cuvid NVDEC                   |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
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Comment (by philipl):

 I don't know what command line you're attempting, but usually, you'd
 expect nvdec to be faster than software even after accounting for read-
 back penalty (remember that for video playback or full hardware
 transcoding with nvenc you never read decoded frames back to system
 memory).

 nvdec doesn't appear on the -hwaccels list because it's an alias for
 'cuda', which is the official option name.

 Documentation can always be improved.

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Ticket URL: <https://trac.ffmpeg.org/ticket/6989#comment:3>
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