[FFmpeg-trac] #3161(FFmpeg:new): libvpx crf does nothing

[FFmpeg]

#3161: libvpx crf does nothing
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             Reporter:  LinAGKar    |                     Type:  defect
               Status:  new         |                 Priority:  normal
            Component:  FFmpeg      |                  Version:  2.0.2
             Keywords:  libvpx crf  |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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 When encoding with libvpx "crf" does not seem to change the quality or
 bitrate, for example "-crf 4" and "-crf 63" gives almost exactly the same
 output.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/3161>
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