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Old 18th September 2008, 17:29   #220  |  Link
crypto
@DVBPortal
 
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Join Date: Feb 2004
Posts: 434
Ok, here are my results dgavcdecode vs. dgavcdecodeNV:

First good news: Using x264 cli two pass encodings are no problem.
Second good news: Acceleration is massive especially on the first pass.
Third good news: The quality of the final encode seems to be higher. I don't know why and have to do more tests.

Source: 1080p30 Apple music clip downscaled to 720p30
CPU: Q6600 2.4GHz
GPU: GF 8600 GTS 1.450 GHz

dgavcdecode:
pass #1: encoded 6580 frames, 32.68 fps, 4811.95 kb/s
pass #2: encoded 6580 frames, 21.48 fps, 5005.68 kb/s
x264 [info]: SSIM Mean Y:0.9689052
x264 [info]: PSNR Mean Y:41.892 U:48.994 V:48.284 Avg:43.078 Global:42.345 kb/s:5005.53


dgavcdecodeNV:
pass #1: encoded 6580 frames, 57.11 fps, 4811.95 kb/s
pass #2: encoded 6580 frames, 24.45 fps, 5005.42 kb/s
x264 [info]: SSIM Mean Y:0.9691189
x264 [info]: PSNR Mean Y:41.931 U:49.607 V:49.447 Avg:43.258 Global:42.404 kb/s:5005.27

Last edited by crypto; 18th September 2008 at 17:34.
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