Hello Justin, Tuesday, June 12, 2001, 5:21:55 AM, you wrote: JS> Hi everybody. Working to round off NVrec, I have run into 2 problems, JS> and I was hoping someone on the list might be able to lend a hand. My JS> appologies for posting slightly off-topic :-(. JS> 1) Is there any way to get the frame rate / frame period from a V4L1 JS> device? I don't see anything that returns it specifically. I do see JS> that GCHAN gives back a norm, although the API doesn't define what the JS> values returned in norm will be... I think that there's no way to get this from device, does the device know about its frame rate at all? Safest way will be to ask user what frame rate he wants. JS> 2) How do I get my files longer than 4GB? For some reason I cannot seem JS> to get it right, even with programs that claim to support long file JS> names! As far as I can see, compiling with -D_FILE_OFFSET_BITS=64 JS> should do the trick, and it does seem to work, if you "nm" the result, JS> you can see it uses open64, rather than open, but all the read/write JS> functions remain the same! It's a bit tricky. You should compile with -DLARGEFILE64_SOURCE, use O_LARGEFILE when opening file, and make sure that you've got support or large files in both kernel and filesystem ( you need kernel 2.4; write to FAT32 partition, because AFAIK ext2 filesystem does not support large files ). -- Best regards, Eugene mailto:divx@xxxxxxx or sparky@xxxxxxxxxxxxxxx [Team GADGET] [Team Two Divided By Zero] NetZero Platinum No Banner Ads and Unlimited Access Sign Up Today - Only $9.95 per month! http://www.netzero.net
