FW: still image capture from video stream

Steve O'Hara-Smith steve at sohara.org
Wed Oct 22 07:27:10 PDT 2003

On Wed, 22 Oct 2003 07:22:32 -0400
stan <stanb at panix.com> wrote:

> Did I mention that there were 4 different cameras? I'm either goging


> to have to use 4 cards, or something like the Inpact series of cards.
> Is switiching between the sources supported? How quick can U switch?

	Switching between sources is supported (IIRC it's a command line
option on bktr2jpeg) and switch time is dominated by the need for a full
frame to establish sync (which assuming a 25fps frame rate will be tight
given that you want to switch 16 times a second, but should work as
long as no sync signals from the camera get missed). I'm not familiar
with the Inpact series (and google keeps throwing me a French review
site called pc-inpact) but if they use an BT8[47][89] chipset then they
should be OK with them.

More information about the freebsd-multimedia mailing list