#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):

 This works fine
 ffmpeg -f v4l2 -framerate 25 -video_size 640x480 -i /dev/video0 output.mkv
 as does
 fmpeg -f lavfi -i aevalsrc=0 -f video4linux2 -s 640x480 -i /dev/video0
 -strict -2 output.mkv

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Ticket URL: <https://trac.ffmpeg.org/ticket/4117#comment:3>
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