2010-01-11, 03:52
I have noticed that VDPAU video render/scaling appears to be more accurate than software scaling. I have encoded a number of my DVDs to h264 with autocrop settings, the end result could be anywhere from 706 to 718 wide from the 720 wide source.
If I take the 718 example, the video is properly scaled to the 1360 width of my TV with VDPAU. Where as with software renderer, it tells me it is scaling from 718x364 to 1360x583 (same as with VDPAU), but on the TV the image is about 10 pixels short (on right) of the 1360.
Both the GUI and VDPAU renderer scale to the full 1360 properly.
What is the limitation/assumption of the software based renderer? Dimensions of a multiple of 4, 8 or 16?
Should a ticket be raised for this issue?
If I take the 718 example, the video is properly scaled to the 1360 width of my TV with VDPAU. Where as with software renderer, it tells me it is scaling from 718x364 to 1360x583 (same as with VDPAU), but on the TV the image is about 10 pixels short (on right) of the 1360.
Both the GUI and VDPAU renderer scale to the full 1360 properly.
What is the limitation/assumption of the software based renderer? Dimensions of a multiple of 4, 8 or 16?
Should a ticket be raised for this issue?
