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

FFmpeg trac at avcodec.org
Fri Mar 31 13:50:59 EEST 2023

#10294: convolution filter's rdiv option ignored
             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       |
Comment (by Mark):

 My reply via mail bounced with "550 5.1.1 <trac at avcodec.org>: Recipient
 address rejected: User unknown in local recipient table", so adding it
 again here.

 I'm not much a programmer, and spent no more the a few minutes looking at
 the source, but this seemed odd to me:

 Half guessing at what the init_param function is probably for it seems the
 rdiv options are always first (re)set to 0, and then a bit further down
 (around line 741) set to the inverse of the sum of the matrix. Could
 explain the behavior we see... I think, maybe.
Ticket URL: <https://trac.ffmpeg.org/ticket/10294#comment:2>
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