On Mon, December 12, 2011 8:22 am, Devin Heitmueller wrote: > On Mon, Dec 12, 2011 at 10:58 AM, Yan Seiner <y...@seiner.com> wrote: >>> Also, just to be clear, the USB Live 2 doesn't have any onboard >>> hardware compression. It has comparable requirements related to USB >>> bus utilization as any other USB framegrabber. The only possible >>> advantage you might get is that it does have an onboard scaler, so if >>> you're willing to compromise on quality you can change the capture >>> resolution to a lower value such as 320x240. Also, bear in mind that >>> the cx231xx driver may not be properly tuned to reduce the alternate >>> it uses dependent on resolution. To my knowledge that functionality >>> has not been thoroughly tested (as it's an unpopular use case). >> >> OK, thanks. I was hoping this was a hardware framegrabber; the info on >> the website is so ambiguous as to be nearly useless. > > I think you're just confused about the terminology. The term > "framegrabber" inherently means that it's delivering raw video (as > opposed to having onboard compression and providing MPEG or some other > compressed format). All framegrabbers are hardware framegrabbers.
Aha. Thanks for the explanation. > > You may wish to look at the HVR-1950, which is well supported under > Linux and does deliver MPEG video. It's obviously more expensive that > the USB Live 2 and it has a tuner which you probably don't need, but > it does avoid the issue if you have USB bus constraints. I had looked at the HVR-1950 but the power consumption was prohibitive for my application. :-( --Yan -- Pain is temporary. It may last a minute, or an hour, or a day, or a year, but eventually it will subside and something else will take its place. If I quit, however, it lasts forever. -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
