On 9/4/19 11:40 AM, Mauro Carvalho Chehab wrote:

> You can use any of them, provided that it is opened as if it were a
> normal file, using the read() interface. For example, this should work:
> 
>       cat /dev/videoX | mplayer -cache 8000 -
> 
> The thing is that most apps assume that a V4L2 device supports mmap().
> 
> This is true for almost all devices, being hdpvr - and pvrusb - two
> exceptions.


That works, and this works:

_[/tmp]_(scott@eva)_
$ cat /dev/video2 | vlc --prefetch-buffer-size 8192 -

So I've learned something more about the driver (and the direction
playback apps have gone).  Thank you very much for the assist. :)

 -Scott

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