[Openchrome-devel] openchrome-ttm, XVMC, HDMI, TV-OUT

[Xavier Bachelot]

Thomas Hellstr?m wrote:
> Stephan Raue wrote:
>> Hello,
>>
>> I finally had the time for to test the openchrome-ttm driver for my HTPC 
>> embedded project (www.openelec.tv). I'm thrilled! My Jetway board 
>> J7F5M1G5-VHE-LF works wonderfully with this and xorg-server-1.6.0, 
>> uclibc and without xorg.conf. Now i need XVMC Support is it possibility 
>> that already use with openchrome-ttm or do I need install the standard 
>> openchrome driver (has it 3D support for the CX700 chipset?) I would 
>> also like to use the HDMI port, which is probably off by default. Do I 
>> need a xorg.conf or can I set up somewhere the HDMI port is used 
>> automatically when a TV is connected. I also do the same for the TV-Out.

Do you use the CX700 integrated tv encoder or the VT1625 ? Integrated
encoder is unsupported. Tim Chen from VIA is working on cleaning the
VT1625 code.
>>
>> many thanks
>>
>> Stephan
>>   
> Stephan,
> 
> For XvMC support you need the standard openChrome driver. Porting XvMC 
> to the TTM driver is next on my TODO-list, but I'm also considering the 
> new VideoAccelerationAPI Intel has launched.
Woh, VA-API, excellent :-) XvMC is showing its limits, it's time to move
to something better. Not sure which players have support for VA though.

> Perhaps a common backend 
> for both would be desirable. To dissappoint you a bit more XvMC won't 
> work on CX700 due to lack of docs.
>
>From what I'm understanding, the MPEG-2 part of the Unichrome Pro II is
similar to the Unichrome, but the registers are shifted by some offset.
It would need someone with the hardware and knowledge to give that a
try. Indeed, doc even under NDA, would be much better. I'll poke at
Bruce to see if there are some news on this subject.

> Also I'm not sure either driver supports HDMI very well.
> 
Support for CX700 integrated TMDS encoder just entered trunk. DVI is
reported to be working. You should give HDMI a try.

> 3D for CX700 should work with both drivers although the TTM driver 
> should be far better overall with support for some CX700 specific features.
> 
> 
> /Thomas

Regards,
Xavier