Re: [V4L] bttv hw question.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]



Gerd Knorr wrote:

> In lists.linux.v4l, you wrote:
> >
> > Just curious, is that technically feasible to use bttv to
> > display two channels at once?
> >
> > I figure it should be possible in THEORY to at very least switch bttv
> > between two channels every frame rate, and thus making each channel at
> > half of its normal frame rate.
>
> No.  The bt848 chip needs some time to resync the picture after switching
> channels, so you can't switch every frame.  You'll have at least one
> broken frame inbetween, i.e. for two stations I think you can't do better
> than ~ 6-7 fps.
>

It is possible to switch between cameras at frame rate if the cameras are
synchronised.

Alan






[Index of Archives]     [Linux DVB]     [Video Disk Recorder]     [Asterisk]     [Photo]     [DCCP]     [Netdev]     [Xorg]     [Util Linux NG]     [Xfree86]     [Free Photo Albums]     [Fedora Users]     [Fedora Women]     [ALSA Users]     [ALSA Devel]     [Linux USB]

Powered by Linux