Hi Andrew Thanks for the info but in my particular case I don't need the TV functionality, the function I'll use is the composite video capture function. Maybe Hauppauge have some other with this capability, based on bt878. I'll guess I'll have to check that out.
/Ola -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Andrew Dodd Sent: den 16 mars 2006 14:44 To: [email protected] Subject: Re: [ivtv-users] How to lower the latency (delay)on compositevideowhen capturing (PVR 150)? Quoting Hans Verkuil <[EMAIL PROTECTED]>: > Using an mpeg encoder card seems like overkill to me. The only > advantage this card may have over a 'normal' TV card is that you don't > need an audio card as the audio is available directly from the mpeg card. > Normal TV cards require an audio line-in. I'm pretty sure this is not the case for more recent bt878 and cx88 based cards. I know that most bt878 cards have the btaudio driver for capture from the card's own line-in or (in the case of a board with a tuner, the tuner's audio output). I do recall seeing that while the cx88 hardware supports audio, there may not be driver support for it yet. A bt878-based card is probably the best one for this application as I believe the cx88 drivers are still considered highly experimental while bttv is INCREDIBLY mature, I think most of the Hauppauge WinTV (non-PVR version) boards are still based on the 878 and not the newer cx88 chip. The bt878 hardware can definately handle 640x480 at 30 fps, assuming that your processing algorithm can handle the job. _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
