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Setting a crf value for hardware encoding does not have any effect.

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    Setting a crf value for hardware encoding does not have any effect.

    I tried to encode a file with different crf values and every values came out as a output file of roughly the same size.
    I use a geforce 1650super for hardware acceleration.
    Lightning-shrink is disabled because it was causing framerate issues when I manually corrected the detected framerate. It was a dvd source of 23.976 fps and it was detected at 29.97 fps.

    I tested values ranging from 1 to 30, all of them gave the same output file size.
    Using other tools, I can see file size changes from 15 and up usually.
    I'm aware that the nvenc encoder doesn't have a crf input value. It has a cq input value instead.

    The dvdfab internal log is included.
    Attached Files

    #2
    I have passed your report to the developer.

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      #3
      Originally posted by spaceharfang View Post
      I tried to encode a file with different crf values and every values came out as a output file of roughly the same size.
      I use a geforce 1650super for hardware acceleration.
      Lightning-shrink is disabled because it was causing framerate issues when I manually corrected the detected framerate. It was a dvd source of 23.976 fps and it was detected at 29.97 fps.

      I tested values ranging from 1 to 30, all of them gave the same output file size.
      Using other tools, I can see file size changes from 15 and up usually.
      I'm aware that the nvenc encoder doesn't have a crf input value. It has a cq input value instead.

      The dvdfab internal log is included.
      We could not duplicate the issue, please send one of the video sources to us to help duplicate the issue.

      Comment

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