[FFmpeg-trac] #8663(undetermined:new): Different encoding results depending on output format (-f)

[FFmpeg]

#8663: Different encoding results depending on output format (-f)
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             Reporter:  friki        |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 Using '-f mp4' results on deterministic execution, as I expected.
 Using '-f tee' also results on deterministic execution, as I expected.

 Comparing '-f mp4' and '-f tee' executions doesn't give same results.

 I can observe the differences by running the attached script.

 Tested with libx264 video codec.

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Ticket URL: <https://trac.ffmpeg.org/ticket/8663>
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