[FFmpeg-trac] #10452(ffmpeg:new): Preset help specified, but could not be opened.

[FFmpeg]

#10452: Preset help specified, but could not be opened.
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             Reporter:  monochromec  |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  ffmpeg
              Version:  6.0          |               Resolution:
             Keywords:  missing      |               Blocked By:
  help preset                        |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by hungkuishing):

 you need specify "-preset", not "-pre"!

 for h264:
 ffmpeg -hide_banner -f lavfi -i nullsrc -c:v libx264 -preset help -f mp4 -

 for h265:
 ffmpeg -hide_banner -f lavfi -i nullsrc -c:v libx265 -preset help -f mp4 -

 notes: "-pre" will specify a avpreset file which contains encoder-specific
 options in it.
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Ticket URL: <https://trac.ffmpeg.org/ticket/10452#comment:1>
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