[FFmpeg-trac] #6475(avcodec:reopened): NVENC: -coder 0 parameter produces no error, but does not disable CABAC

[FFmpeg]

#6475: NVENC: -coder 0 parameter produces no error, but does not disable CABAC
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             Reporter:  alexpigment  |                    Owner:
                 Type:  defect       |                   Status:  reopened
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  nvenc        |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by oromit):

 The value 0 comes directly from the nvidia header.
 It's not part of the documented ffmpeg API or ABI. Only the names are.

 The only direct value ffmpeg makes up here is -1, which translates to "do
 not set this setting at all and leave it on whatever is in there by
 default".
 This option is similar do what x264 has, but not the same. I picked the
 const names for it to be compatible in most cases of normal usage.

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Ticket URL: <https://trac.ffmpeg.org/ticket/6475#comment:6>
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