>> yes, I thought about it before, but it's only usable for >> very short video - do you know how big will be 60 minutes avi or raw? >> I think buying so big memory is not worth results... True, uncompressed video gets big quickly: 720*480 = 345600 pixels/frame 345600 * 30 frames/s = about 10 megapixels/second 10 Mpix/s * 60 s = 600 Mpix/minute 600 Mpix/min * 60 min = 36000 Mpix/hour If you're working in black and white then 1 pixel = 1 byte, which works out to 36 GB/hour. If you keep 16 bits per pixel, eg. 4:2:2 or RGB565, then that's 72 GB/hour. And 24 bit RGB would be 108 GB/hour. Clearly 100 gigabytes of RAM is out of the question, but 100 gigabytes of disk is not wildly expensive anymore. And data rates of 20-30MB/s are not hard to achieve either. But most people would recommend compression to bring both data rates and size down to a more reasonable level. n --== Sent via Deja.com http://www.deja.com/ ==-- Before you buy.
