[FFmpeg-trac] #5850(avdevice:open): Using Hauppauge HD-PVR fails (streaming I/O)

[FFmpeg]

#5850: Using Hauppauge HD-PVR fails (streaming I/O)
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             Reporter:  naums       |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  avdevice
              Version:  git-master  |               Resolution:
             Keywords:  v4l2        |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by naums):

 Replying to [comment:7 cehoyos]:
 > And this also doesn't work, correct?
 > {{{
 > $ ffplay -i file:/dev/video0
 > }}}

 doesn't work, same as above

 > And the same is true if you don't use ffplay but ffmpeg?
 > {{{
 > $ cat /dev/video0 | ffmpeg -i - -qscale 2 out1.avi
 > $ ffmpeg -i file:/dev/video0 -qscale 2 out2.avi
 > }}}

 Both work for over a minute (so I'm assuming that it will work even
 longer). Interesting thing to note is, that it seems to build up a buffer
 at the start, then render the video at 2x speed, becoming slower as the
 buffer gets empty.

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Ticket URL: <https://trac.ffmpeg.org/ticket/5850#comment:8>
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