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Old 06-02-09, 11:27 AM   #78
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Join Date: May 2008
Posts: 166
Default Re: VDPAU testing tool

We are just not able to communicate for some reason, Jean.

crisalide, that's the first explanation I've seen of Myth's 2X and 1X, thanks.

So for 2x all it does is make each field into a frame? Is it still missing every other line? Or does it combine an odd field with an adjacent even field? Or does it interpolate?

And it seems 1X cuts resolution in half? Does it interpolate the missing lines? How could it be sharper than Temporal 2X?

For example, here's a common ATSC recording I watch:
ID                               : 224 (0xE0)
Format                           : MPEG Video
Format version                   : Version 2
Format profile                   : Main@High
Format settings, Matrix          : Default
Duration                         : 1h 51mn
Bit rate mode                    : Constant
Bit rate                         : 15.2 Mbps
Nominal bit rate                 : 17.8 Mbps
Width                            : 1 920 pixels
Height                           : 1 080 pixels
Display aspect ratio             : 16/9
Frame rate                       : 29.970 fps
Standard                         : Component
Colorimetry                      : 4:2:0
Scan type                        : Interlaced
Scan order                       : Top Field First
Bits/(Pixel*Frame)               : 0.245
Stream size                      : 11.9 GiB (94%)
The frame rate here is 29.970, which means the field rate is 59.94Hz. My 9300 has tested that it can only process 33 fields/s for Advanced, which is < 59.94, so it clearly can not do Advanced deinterlacing, right? And this qvdpautest method, is this at 2X, or 1X? How do I equate the 33 fields/s for Advanced to Myth's settings of Advanced 1X & 2X?
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