[FFmpeg-trac] #9633(undetermined:new): gblur ignores resized input

[FFmpeg]

#9633: gblur ignores resized input
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             Reporter:  Jozef        |                    Owner:  (none)
  Chutka                             |
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:  gblur        |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Michael Koch):

 Suggestions for improvement:
 1. There should be a warning or error message in those cases where dynamic
 size changes aren't allowed.
 2. Add this note to the documentation of the scale filter:
 "Please note that although it's possible to change the size dynamically,
 this doesn't necessarily mean that the subsequent filter accepts a
 dynamically changing size. This works only in a few cases, for example
 scale directly followed by overlay."

 Does anybody have a "positive" list of cases where dynamic size changes
 are working? So far, I only know that scale,overlay does work.

 Michael
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9633#comment:6>
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