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From hz nan <nhongz...@gmail.com>
Subject the rate of camera capture
Date Thu, 14 Jul 2011 01:46:57 GMT
Hi,all
In Linux, the rate of camera capture is different for diffrent camera.For
Logitech,
it need 120ms to capture one frame, it means that it can only capture 8
frames
one second. But for a good camera, it can capture 18-22frame one second.The
time is not used in the ffmpeg but used in the system function "iotcl" equate
with
camera read. Because opencvalso use V4L, so the opencv speed is also improve
 use good camera.
And because in Linux, system can't reopen camera,  I can't use multithread
to improve the capture rate.

nan hongzhen

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