* mjpeg grabbing added, thanks to Paul Forgey <paulf at aphrodite dot com>
that had done all the work. Paul Forgey's notes: -------------------- Unfortunatley, the v4l interface shows how much it sucks here. I can't wait for v4l2 to become more common. Anyway, the mjpeg mechanism captures completely differently than the uncompressed frame capture mechanism. This means the code has to split off a bunch to do similar things depending on mjpeg being set or not. For some reason, I can't use non v4l2 calls to capture uncompressed frames from the lml33, however I do have another bttv card on my system to test that I didn't break the non-mjpeg stuff. The Zoran encoders don't use square pixels. So the 4:3 (or 16:9) picture is going to show up as 720x480. I don't know my way around the code well enough to know how to specify a non-square pixel aspect ratio. If there isn't a way to do it, it would be nice to be able to specify as an option the aspect ratio of the sourc. Either 4:3 or 16:9 in the case of anamorphic S-Video, which does occur. I stole the videodev_mjpeg.h header from the lavrec project. Despite the linux kernels having support for the Zoran cards, there doesn't seem to be a reliable way to pick up this header, which is probably why lavrec did it this way. Since it only defines ioctl definitions, I don't think using it is a legal problem. I also modified the audio handling a bit. If the card supports audio, great, we'll set the card's parameters as we did before. But if adev= is specified, use it regardless. The reason to do this is to capture audio from the sound card with video coming from, say, a web cam or in my case, an encoder card which doesn't have any audio capabilities at all.
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