Hi. Seems that you haven't a question about VIDIOCGMBUF, but something about what to do with your frames. What do you want to do with them ? When do you want to use them ? Realtime ? Later processing ? Stick with the jpeglib to single images, there are plenty of examples with it over the internet. I have some, if you want, just drop a line. After messing with it, I think you will fix a direction to work. There are plenty of aplications doing good frame rates even recording frame by frame. Best regards. -- Gleicon S. Moraes gleicon@xxxxxxxxxxxx gleicon@xxxxxxxxxx http://planeta.terra.com.br/informatica/gleicon ----- Original Message ----- From: "ST" <sergei7@xxxxxxxxx> To: <video4linux-list@xxxxxxxxxx> Sent: Wednesday, January 09, 2002 6:08 AM Subject: some questions about VIDIOCGMBUF > I'm using the mmap method of reading images from my tv > card. Checking the size variable in the struct > video_mbuf, it shows 4259840bytes. That is the size of > 1 single frame right? > Since I want to do recording of the video and my > program runs at about 25 frames per second, recording > each frame uncompressed will take up a lof space(I've > tried recording each frame but frame rate will drop as > the disk i/o is not fast enough). > Is there any fast and easy to use library to compress > the frames(I want to be able to extract frame by frame > for processing later on)? I have looked around and am > confused by the seemingly large number of available > libraries, like mpeg, mjpeg, png, jpeg, divx, etc. > > __________________________________________________ > Do You Yahoo!? > Send FREE video emails in Yahoo! Mail! > http://promo.yahoo.com/videomail/ > > > > _______________________________________________ > Video4linux-list mailing list > Video4linux-list@xxxxxxxxxx > https://listman.redhat.com/mailman/listinfo/video4linux-list >
