[mythtv-users] Graphic cards supporting VDPAU and sound over HDMI

[Michael T. Dean]

On 03/30/2010 06:18 AM, Christopher Kerr wrote:
> On Tue, Mar 30, 2010 at 4:26 PM, Peter Carlsson wrote:
>    
>> On Mon, Mar 30, 2010 at 09:02:41 +1400, Nick Rout wrote:
>>      
>>> Why do you want to deinterlace 1080p?
>>>        
>> Hmmm, that's how it sounds when you speak about something you don't really
>> know anything about...
>>
>> What I think I meant was that I want a card that is capable of handling
>> 1080p and de-interlacing 1080i with Advanced 2X.
>>
>> My current setup with onboard 6150 is very jerky when panning.
>>      
> Actually, that reminds me of something I've been wondering about for a
> while: why do we use 1080i anyway? Basically all HD displays are
> progressive by nature, and it takes the same amount of bandwidth to
> broadcast 1080i50 as 1080p25. So why do they do it that way? Doesn't
> MPEG-2 encoding work more efficiently on progressive content, anyhow?
>    

Sometimes temporal resolution is more important than spatial 
resolution--like in fast-action content (think hockey games, etc).

Mike