[FFmpeg-trac] #4117(undetermined:new): ffmpeg hangs while converting usb camera input

[FFmpeg]

#4117: ffmpeg hangs while converting usb camera input
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             Reporter:  biofool      |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by biofool):

 Not caused by dual inputs
 ffmpeg -f x11grab -r 25 -s 1280x800 -i :0.0 -c:v libvpx -f alsa -i pulse
 http://127.0.0.1:8090/feed1.ffm

 does not hang

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Ticket URL: <https://trac.ffmpeg.org/ticket/4117#comment:5>
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