[FFmpeg-trac] #6178(undetermined:closed): Unable to parse option value "-1" as pixel format

[FFmpeg]

#6178: Unable to parse option value "-1" as pixel format
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             Reporter:  al           |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:  mkv          |               Resolution:  invalid
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Changes (by cehoyos):

 * keywords:   => mkv
 * status:  new => closed
 * resolution:   => invalid


Comment:

 Afaict, this is a broken file that cannot be decoded (extradata missing).
 Please reopen this ticket if there is software that can decode video for
 this sample.

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Ticket URL: <https://trac.ffmpeg.org/ticket/6178#comment:3>
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