x265 CRF vs Intel CQP

cakuhnen · 24th May 2018, 02:22

Hi, i need to know what difference have with x265 CRF 18 and Intel CQP, what about x265 CRF 18, what should be on Intel CQP?
I'm using Intel HEVC GPU Accelerated not QSV, i know that in Intel QSV have ICQ but in Intel GPU Accelerated plug-in only CQP
Intel HEVC QSV give poor quality even with high bitrate but Intel HEVC GPU Accelerated is fine
Regards

K.i.N.G · 25th May 2018, 23:56

It all depends strongly on what setting you are using... It impossible to just slam a simple formula on it and it wouldn't probably give consistent results on different material.

MeteorRain · 29th May 2018, 18:02

Even two different encoding settings in x265 would result in two different quality in two different bitrate range, on the same CRF.

24th May 2018, 02:22	#1 \| Link
cakuhnen Registered User Join Date: Apr 2005 Posts: 78	x265 CRF vs Intel CQP Hi, i need to know what difference have with x265 CRF 18 and Intel CQP, what about x265 CRF 18, what should be on Intel CQP? I'm using Intel HEVC GPU Accelerated not QSV, i know that in Intel QSV have ICQ but in Intel GPU Accelerated plug-in only CQP Intel HEVC QSV give poor quality even with high bitrate but Intel HEVC GPU Accelerated is fine Regards __________________ Specs: Intel i7 7700 3.6 Ghz, 8GB DDR 4, 2 SATA II 3TB 6Gb/s, PANASONIC HDTV, Windows 10 x64

29th May 2018, 18:02	#3 \| Link
MeteorRain 結城有紀 Join Date: Dec 2003 Location: NJ; OR; Shanghai Posts: 894	Even two different encoding settings in x265 would result in two different quality in two different bitrate range, on the same CRF. __________________ Projects x265 - Yuuki-Asuna-mod Download / GitHub TS - ADTS AAC Splitter \| LATM AAC Splitter \| BS4K-ASS Neo AviSynth+ filters - F3KDB \| FFT3D \| DFTTest \| MiniDeen \| Temporal Median

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25th May 2018, 23:56	#2 \| Link
K.i.N.G Registered User Join Date: Aug 2009 Posts: 90	It all depends strongly on what setting you are using... It impossible to just slam a simple formula on it and it wouldn't probably give consistent results on different material.