[linux-dvb] Re: DVB Feature Wishlist

["Adrian Wilkins" <Adrian.Wilkins@Ascribe.com>]

> 
> > The quoted figure of 1.8 Gb per hour for storage of video 
> for the DEC2000-t (UK version, at least) would suggest a 4Mbit/s video
> stream, so in theory, two streams should fit into the 
> 12Mbit/s provided by USB 1.1
> 
> If I remember correctly, 12Mbit/s is USB 1.1 _bitrate_. 
> Usefull _datarate_ on USB 1.1 is much smaller: 6Mbit/s or so..
> 
> Best regards from
> Kamil Burzynski

Hmm.... I guess I could borrow the tech directors USB hard drive and do some testing, but that is pretty much what I suspected.

Still, it's not so bad - enough bandwidth for a bi-directional MPEG2 stream would be nice, but not essential. If it could support this, you could record from the tuner while watching pre-recorded material. If it can only cope with one stream at once, it's no worse than a VCR in that regard.

It's much more interesting to be able to send an MPEG2 stream back to the box for decoding.


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