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I got a windows-based digital surveillance system
from Korea,
with only one BT-878, this application could capture 28-32 fps
320x240 pictures while switching 4 channels of
cameras with
built-in MUX.
The most important information is: the captured
pictures are
clear and stable (without iamge jump
up/down).
Under V4L, we know that, after switching to a new
channel,
it need some time to
resync, and to avoid wrong odd/even order.
But, what is the different with the windows-based
BT-878 driver ?
And, I think it capture
4 pictures at once (almost the same time).
Maybe the windows driver
try to find out the best sequence of
channels switching, and
programming the RISC in advanced in the
optimized order (maybe
1-4-2-3, 1-4-2-3,....)
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