[mythtv] s-video input / widescreen tv ?

[Laurent Farcy]

Bruce Markey wrote:
> Laurent Farcy wrote:
>> 4/ Last, I'm wondering if there's a difference in terms of quality 
>> between tv tuner cards for video grabbing, and particularly in my case 
>> for s-video input grabbing. The differences could be, I guess, on 
>> maximum resolution, visual quality, widescreen handling, ... So if you 
>> could share your experience, I would appreciate your feedback.
> 
> 
> I've played the "Video Essentials" DVD from a DVD player
> into the S-video input of bttv card and recorded at 720x480.
> My conclusion was that the bt chip clocks latch at the right
> time and correctly assign digital values for the analog signal
> that it is sampling and sends the raw video data down the bus.
> There doesn't appear to be much room for improvement in the
> quality of capture.
> 

It sounds great because it means even cheap tv tuner cards can fit.

> 
> For broadcast TV over coaxial cable, 480x480 or ever 352x480
> look nearly as good as 640x480. However, with your digital
> cable, and especially channels that are true digital, you will
> see better quality at higher resolutions.
> 

Unfortunately, my MythTV box is not ready yet. But, as soon as it is, I
will make some live test to experience the difference.

> --  bjm
> 

Laurent