Media Player Classic - Home Cinema (MPC-HC) - v1.7.13 - Page 101

kopija · 13th July 2015, 13:28

Intel is the only one doing a decent job with DXVA.

huhn · 13th July 2015, 18:34

amd is for sure not using bilinear in EVR. sorry this charts doesn't look correct.

dbcooper · 13th July 2015, 19:11

That chart is from a forum post from 2013:

http://www.avsforum.com/forum/26-hom...ggestions.html

nevcairiel · 13th July 2015, 19:57

Quote:

Originally Posted by huhn

amd is for sure not using bilinear in EVR. sorry this charts doesn't look correct.

Its easy enough to confirm, and its not a secret that DXVA2 upscaling has nothing more than mediocre quality on most hardware.

Warner306 · 13th July 2015, 22:34

The DXVA portion of this chart is likely more accurate: http://forum.kodi.tv/showthread.php?...127#pid1970127.

huhn · 13th July 2015, 23:16

Quote:

Originally Posted by Warner306

The DXVA portion of this chart is likely more accurate: http://forum.kodi.tv/showthread.php?...127#pid1970127.

yeah clearly not bilinear. i even did a test and i have bilinear in madVR and something way better with EVR but i'm on widnows 10 so no bug report for this right now.

kasper93 · 14th July 2015, 01:37

Native EVR scaling is something that we can make available. But is wasn't really reliable over the years. That's why it isn't available yet.

I have a request to you guys. We are receiving many crash reports related to logo/cover art handling. Unfortunately crashes occurs during clean up on MPC-HC exit. The crash reports doesn't point to the main problem and it is impossible for us to fix it without your help. Should you encounter crash during MPC-HC exiting (It is "Problem 134243") and you can reproduce the problem please tell me. Thanks.

ndjamena · 14th July 2015, 03:26

If I wanted to get MPC-HC to support iTunes m4v Final Cut Pro 608 captions would I ask THEM (MPC-HC) or one of the codec library developers?

[I got the VLC nightly to manage to pass the captions to the decoder, but now they're going to have to rewrite the decoder to get the timings right (and to prevent it from simply erasing some captions before they even get displayed).]

madshi · 14th July 2015, 08:14

Quote:

Originally Posted by huhn

yeah clearly not bilinear. i even did a test and i have bilinear in madVR and something way better with EVR but i'm on widnows 10 so no bug report for this right now.

And that's with the latest madVR build? A couple of months ago the way madVR did DXVA scaling, AMD drivers produced Bilinear scaling. But I changed something a couple of weeks/months ago, and I'm getting "proper" scaling now with AMD drivers. However, I'm still on Windows 8.1.

kopija · 14th July 2015, 10:28

Perhaps DXVA scaling algorithm varies not by chart/software but by actual GPU (older/newer) being used?

mindbomb · 14th July 2015, 16:00

Quote:

Originally Posted by madshi

And that's with the latest madVR build? A couple of months ago the way madVR did DXVA scaling, AMD drivers produced Bilinear scaling. But I changed something a couple of weeks/months ago, and I'm getting "proper" scaling now with AMD drivers. However, I'm still on Windows 8.1.

I think this was introduced with their 14.12 driver. AMD had to have good scaling for their VSR feature, so they updated the video ones too.

huhn · 14th July 2015, 17:25

AMD scaling is something like lanczos3 AR i did a test and it's working in madVR too.

v0lt · 15th July 2015, 04:12

Quote:

Originally Posted by kopija

On Nvidia no method Lanczos. Tested on sample 18x18 RGB24.

Aleksoid1978 · 15th July 2015, 08:49

Quote:

Originally Posted by v0lt

On Nvidia no method Lanczos. Tested on sample 18x18 RGB24.

Confirm.

More testing DXVA2 scaling(MPC-BE + EVR Custom):
ATI 7750, catalyst 15.7:
Image upscaling = ~Bicubic A=-0.8
Image downscaling = Bilinear
Nvidia GTX 960, 353.30:
Image upscaling = Bilinear
Image downscaling = Bilinear

nevcairiel · 15th July 2015, 09:16

Quote:

Originally Posted by v0lt

On Nvidia no method Lanczos. Tested on sample 18x18 RGB24.

RGB is not a good test, you need to test NV12 input for reliable results.

madshi · 15th July 2015, 09:24

Exactly. Some GPU drivers switch to Bilinear (or at least to a simplified scaler) when being asked to scale RGB. E.g. I think AMD might still use something better than Bilinear, but it at least doesn't do anti-ringing, anymore, last time I checked. Testing should be done with NV12. If you want to test with RGB test images, use AviSynth's ConvertToYV12, or force LAV Video Decoder to convert the images to NV12/YV12.

Aleksoid1978 · 15th July 2015, 11:38

I test on NV12 output.

kasper93 · 15th July 2015, 11:59

Quote:

Originally Posted by Aleksoid1978

I test on NV12 output.

Doesn't matter. I looked at your code, at DX9RenderingSurface level you are working on RGB surfaces. EVR Mixer does the conversion way before you apply scaling.

Aleksoid1978 · 15th July 2015, 14:08

Quote:

Originally Posted by kasper93

you are working on RGB surfaces. EVR Mixer does the conversion way before you apply scaling.

Yes i know. Question - do you know how do transformation/scaling before EVR mixer.

Вut even so - it's work normal. On Intel it's give good result.

v0lt · 15th July 2015, 16:39

Quote:

Originally Posted by nevcairiel

RGB is not a good test, you need to test NV12 input for reliable results.

NVIDIA Quadro 600 (v311.15)
madVR v0.88.10, DXVA2 scaling, 18x18 -> 444x444
NV12 - Bilinear
YV12 - Bilinear
YUY2 - Bilinear (green in the bottom)
AYUV - Bilinear (green in the bottom)
RGB32 - Bilinear
I changed the output type in the decoder and check the properties of the input pin of renderer. After each change the settings I restarted the player.

PS: When I increase the window for YUV formats, the madVR writes an error "-dxva processing failed".

14th July 2015, 01:37	#2007 \| Link
kasper93 MPC-HC Developer Join Date: May 2010 Location: Poland Posts: 586	Native EVR scaling is something that we can make available. But is wasn't really reliable over the years. That's why it isn't available yet. I have a request to you guys. We are receiving many crash reports related to logo/cover art handling. Unfortunately crashes occurs during clean up on MPC-HC exit. The crash reports doesn't point to the main problem and it is impossible for us to fix it without your help. Should you encounter crash during MPC-HC exiting (It is "Problem 134243") and you can reproduce the problem please tell me. Thanks. Last edited by kasper93; 14th July 2015 at 01:41.

15th July 2015, 11:38	#2017 \| Link
Aleksoid1978 Registered User Join Date: Apr 2008 Location: Russia, Vladivostok Posts: 2,785	I test on NV12 output. __________________ AMD Ryzen 5 3600 /GIGABYTE B450 Gaming X /Patriot 32Gb@3200 /Kingston 500Gb M.2 /RTX 4060 /Samsung U28R550UQI /OLED Philips 55OLED707 /Yamaha RX-V471 + NS-555 + NS-C444 + NS-333 + YST-SW215

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13th July 2015, 13:28	#2001 \| Link
kopija Registered User Join Date: May 2012 Posts: 49	Intel is the only one doing a decent job with DXVA.

13th July 2015, 18:34	#2002 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 7,921	amd is for sure not using bilinear in EVR. sorry this charts doesn't look correct.

13th July 2015, 19:11	#2003 \| Link
dbcooper Registered User Join Date: Jul 2009 Posts: 51	That chart is from a forum post from 2013: http://www.avsforum.com/forum/26-hom...ggestions.html

13th July 2015, 22:34	#2005 \| Link
Warner306 Registered User Join Date: Dec 2014 Posts: 1,127	The DXVA portion of this chart is likely more accurate: http://forum.kodi.tv/showthread.php?...127#pid1970127.

14th July 2015, 03:26	#2008 \| Link
ndjamena Registered User Join Date: Sep 2012 Posts: 366	If I wanted to get MPC-HC to support iTunes m4v Final Cut Pro 608 captions would I ask THEM (MPC-HC) or one of the codec library developers? [I got the VLC nightly to manage to pass the captions to the decoder, but now they're going to have to rewrite the decoder to get the timings right (and to prevent it from simply erasing some captions before they even get displayed).]

14th July 2015, 10:28	#2010 \| Link
kopija Registered User Join Date: May 2012 Posts: 49	Perhaps DXVA scaling algorithm varies not by chart/software but by actual GPU (older/newer) being used?

14th July 2015, 17:25	#2012 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 7,921	AMD scaling is something like lanczos3 AR i did a test and it's working in madVR too.

15th July 2015, 09:24	#2016 \| Link
madshi Registered Developer Join Date: Sep 2006 Posts: 9,140	Exactly. Some GPU drivers switch to Bilinear (or at least to a simplified scaler) when being asked to scale RGB. E.g. I think AMD might still use something better than Bilinear, but it at least doesn't do anti-ringing, anymore, last time I checked. Testing should be done with NV12. If you want to test with RGB test images, use AviSynth's ConvertToYV12, or force LAV Video Decoder to convert the images to NV12/YV12.