On 5/10/2005 2:02 PM, Eric Gilbert wrote:
Maybe I'm not reading this right (or something is buried inI think that is talking about two different things. The VT1625 does take in 640x480, 800x600, and 1024x768 and scale to SDTV resolutions, but it also accepts 1280x720p and 1920x1080i modelines and display those natively without scaling.
doublespeak) but it looks like the VT1625 on the Commell LV-667T
doesn't actually take HDTV resolutions as input.
According to the Via site
http://www.via.com.tw/en/products/video-display/tv/vt1625/ the chip
uses their ProScale achieve 720p and 1080i output. "This enables
scaling of an image from 0.5 to 1.5 factors in the horizontal and
vertical directions allowing input resolutions from 640x480 – 1024x768
to outputted up to the latest 1080i or 720p standard HDTV
resolutions."
This is for the composite and svideo output scaler.
Am I missing something here?I actually have the datasheet for the VT1625 and it shows that 720p and 1080i are supported going into the chip. I am still working on the modeline table for the VT1625, but it goes have actual 720p and 1080i support.
I should note that only 640x480, 800x600, and 1024x768 are scaled. And they are only scaled to SDTV resolution Nx480i or Nx576i with a 4:3 aspect ratio out the composite and/or svideo connectors. In order to display to a 720p (or 1080i) HDTV set, you will need to use the component output and set the output mode to 720p (or 1080i) and do the scaling inside of Myth (actually xvideo I guess).
HTH,
-- David
HDTV frontend I'm working on (pictures, mythmon source) http://mythhd.info
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