[FFmpeg-trac] #8921(undetermined:new): Cannot force png format for file wihout extension

[FFmpeg]

#8921: Cannot force png format for file wihout extension
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             Reporter:  aalexgabi    |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:  png, format  |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by aalexgabi):

 Seems that using apng format works:
 {{{
 % ffmpeg -v error -i sunglasses.png /tmp/sunglasses.png
 % ffmpeg -v error -i sunglasses.png -f apng /tmp/sunglasses
 % diff /tmp/sunglasses.png /tmp/sunglasses
 % echo $?
 0
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/8921#comment:1>
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