[FFmpeg-trac] #9937(undetermined:new): libkvazaar encoder produces no output

[FFmpeg]

#9937: libkvazaar encoder produces no output
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             Reporter:  Jozef        |                    Owner:  (none)
  Chutka                             |
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:  libkvazaar   |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Jozef Chutka):

 According to the discussion on
 https://github.com/ultravideo/kvazaar/issues/349 the issue seems to be
 related to BtbN windows builds (based on ct-ng, MinGW 9, GCC 12), while
 builds based on MinGW 10, GCC 10.3 works ok (i.e.
 https://github.com/nanake/ffmpeg-tinderbox/releases/latest).

 Likely the issue is caused by GCC 12 vs used AVX2 optimizations.

 The workaround for BtbN build is to use `-kvazaar-params "cpuid=0"`.

 I believe this issue is outside of ffmpeg scope and this ticket can be
 closed
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9937#comment:3>
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