[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 BoKK):

 Replying to [comment:12 Balling]:
 > This commit should be used too. 710dce131fdb6c1ebec1f26a7a4173d82d828330
 >
 > Not only 52a14b8505923116ed6acc5e691c0c7c44e6f708. This Intel slice
 threading patch is just wow. Third bug.
 >
 > >using a 12-cores, 24-threads AMD processor
 >
 > Well, that is just great. CPU problem. See the original guy, detected 32
 logical cores.
 >
 > >same test on a virtual machine with a fresh and non-modified Windows 10
 x64 install didn't throw any error
 >
 > That is a very bad test. I hope you at least used Vmware.


 Yes, latest VMware Workstation used. Also, please read my last edit to my
 previous post: if I limit thread use by ffmpeg, the problem vanishes.
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Ticket URL: <https://trac.ffmpeg.org/ticket/9811#comment:13>
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