[FFmpeg-trac] #9811(avfilter:new): filter 'zscale=transfer=linear' fails with "code 2050: active window must be positive"

[FFmpeg]

#9811: filter 'zscale=transfer=linear' fails with "code 2050: active window must
be positive"
-------------------------------------+-------------------------------------
             Reporter:  rminnema     |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avfilter
              Version:  git-master   |               Resolution:
             Keywords:               |               Blocked By:
  zimg,zscale,transfer               |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by Balling):

 >I'm editing to *Deleted* my posts.

 I am not such a person that thinks someone hijecked or derailed [or 100
 other things] the thread, it is obvious that if a) i cannot reproduce b)
 you can reproduce on some modified windows
 then this is a OS/compiler/binary issue.

 Again, if your command causes the same warning, it is safe to at least
 assume it is the same bug, even if it is not, that is not a problem! So
 thank you for googling and finding it instead of opening another bug!
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9811#comment:9>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker