[FFmpeg-trac] #10294(avfilter:new): convolution filter's rdiv option ignored

FFmpeg trac at avcodec.org
Fri Mar 31 10:24:08 EEST 2023


#10294: convolution filter's rdiv option ignored
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             Reporter:  Mark    |                    Owner:  (none)
                 Type:  defect  |                   Status:  new
             Priority:  normal  |                Component:  avfilter
              Version:  6.0     |               Resolution:
             Keywords:          |               Blocked By:
             Blocking:          |  Reproduced by developer:  0
Analyzed by developer:  0       |
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Comment (by Michael Koch):

 I can reproduce this issue.

 Also the documentation is unclear:
 "Set multiplier for calculated value for each plane. If unset or 0, it
 will be sum of all matrix elements."
 The second example "Apply Blur" suggests that it's indeed a multiplier.
 But then the default value should be the _inverse_ of the sum of all
 elements.

 The question remains why a multiplier was given the name "0rdiv".
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Ticket URL: <https://trac.ffmpeg.org/ticket/10294#comment:1>
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