[FFmpeg-trac] #9640(avformat:new): Re-add singlejpeg muxer

[FFmpeg]

#9640: Re-add singlejpeg muxer
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             Reporter:  bubbleguuum  |                    Owner:  (none)
                 Type:  enhancement  |                   Status:  new
             Priority:  normal       |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by bubbleguuum):

 ffmpeg -i blargh.mp3 -frames:v 1 - > /dev/null

 does not work, resulting in:

 [NULL @ 0x5566b1ee6180] Unable to find a suitable output format for
 'pipe:'
 pipe:: Invalid argument

 Writing to a file works, but this is not what I want.

 Anyways, making singlejpeg available again would be great, but since I
 generate my own ffmpeg binaries I trivially restored it in my build.
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Ticket URL: <https://trac.ffmpeg.org/ticket/9640#comment:2>
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