Hi Matt, Op zo 14-04-2002, om 01:04 schreef Matt G.: > Another concern I have is the API. Are the V4L-related APIs sufficient to > build a professional-grade NLE? I don't really care about realtime DVEs, or > anything like that - I mainly care about audio synch, timecode/genlock, and > realtime capture/playback of uncompressed. Deck control is another huge > issue, but also not a primary concern of mine. The v4l API is a video-capture and video-view API for BTTV-based cards and other TV/capture cards. It doesn do advanced things like providing the basis of a fully-featured NLE, that's all userspace things (for our sort of users ;-) ), not kernelspace. The only thing the v4l API helps us is in capturing video or in watching TV on our desktop. What you might want to look at is, as Billy already said, video4linux2 (Billy already gave the link - http://www.thedirks.org/v4l2/). v4l2 provides a more generic and wider-usable interface for things like compressed and uncompressed videocapture, TV-watching, codec boards (as opposed to capture-boards), TV-out functionality, etc. There's many tools out there that can do capture with perfect A/V sync. Some boards should provide this function internally, but I don't think any recorder uses this functionality already... Any reasonable card can do realtime capture, and most computers can do realtime playback, even of uncompressed frames (as long as your HD is fast enough). I've never needed a $4000-card for this :-). Ronald -- - .-. - /V\ | Ronald Bultje <rbultje@xxxxxxxxxxxxxxxxxxx> - // \\ | Running: Linux 2.4.18-mdk6 and OpenBSD 3.0 - /( )\ | http://ronald.bitfreak.net/ - ^^-^^
