Canada
SP2 evr.dll
I pulled this from my WOW64 directory so I assume it's right even for 32 bit only Vista.
I pulled this from my WOW64 directory so I assume it's right even for 32 bit only Vista.
Grey blacks with internal player + EVR (1 Viewer)
- Thread starter djphatic
- Start date
I wasn't suggesting that - I was responding to the comment about nVidia cards having the 'grey blacks' problem.
I'm calibrating the desktop so that level 0 = black, level 255 = peak white and checking that it's a smooth ramp in-between (no black or white crushing).
Then I'm checking with video that level 16 = black, level 235 = peak white and that it's a smooth ramp in-between (no black or white crushing).
Can you see a problem with the testing ?
Tony
No noticable tearing visible (yet) and no problems with subtitles + MPC-HC Subtitle Engine.
Thanks, this worked fine on my system. Black levels are fine as with the SP1 EVR DLL I already had on my system. No issues so far with this SP2 DLL, and subtitles are still 1000ms early.
Few days after the change of the evr.dll blacks are still black and details are also very nice but it looks like i've got some de-interlacing issues. Especially with horizontal pans it looks like the picture is getting a little 'blurry'.
Also did some testing with blacklevels inside MP and i'm measering black everywhere as 0 and white as 255 although my entire chain of devices is set to Limited RGB. Shouldn't this black be at level 16 instead of 0 ??
Also did some testing with blacklevels inside MP and i'm measering black everywhere as 0 and white as 255 although my entire chain of devices is set to Limited RGB. Shouldn't this black be at level 16 instead of 0 ??
You're running your video card at 60Hz and playing a 24 fps film, I assume? If so what you're seeing is not an artifact of de-interlacing but rather an artifact/consequence of 3:2 pulldown. Watching film content (24 fps) on a video display (60 Hz) will always result in some blurriness during horizontal pans.
I'm confused: earlier you said your blacks were grey and you were seeing 0-25 of the flashing bars from the AVS HD 709 test pattern. This meant: black = 0.
Then you applied the pre-SP1 EVR DLL and your blacks were black and you were only seeing 17-25 of the flashing bars from the AVS HD 709 test pattern. This meant: black = 16.
Now you're contradicting your last statement. Can you explain further how you seemed to have determined now that your black is 0?
If your video content looks correct and black looks black, then your system is correct and black = 16. Previously your black = 0 and so video black (16) was showing up 16 steps lighter than black, i.e. "grey". Get it?
Desktop is set to 50Hz refreshrate. I'm using the refreshrate changer off course so TV = 50Hz, NTSC = 60Hz and BluRay/MKV = 24Hz refreshrate send to the panel.
Sure i get it, that's why this surprised me. I used IrView to drop some screenshot from TV and The Dark Knight (720p mkv) and when i messure both blacks in there, i get back a value which is close to 0 but definitly lower then 16.
Then again if you play video in MPC-HC, you'll also see that output is set to 0-255
So ATI outputs Limited RGB, my TV input is set to Limited RGB. Then i'm really confused why i messure 0 for black and 255 for white.
Just played the MP4 Black Pattern again inside MediaPortal and i only see 17-25 flash.
** EDIT **
Doens't have to be. If you output 0-255 and set input to 16-235 then you also will see lots of blacks
but you'll lose all the detail and i only hope that isn't happening.Ok, then the blurring probably isn't due to 3:2 pulldown. However, I don't think the renderer would have anything to do with that. Are you sure you aren't seeing the same blurring with MPC-HC and the SP1/SP2 EVR DLL?
Sure i get it, that's why this surprised me. I used IrView to drop some screenshot from TV and The Dark Knight (720p mkv) and when i messure both blacks in there, i get back a value which is close to 0 but definitly lower then 16.
Then again if you play video in MPC-HC, you'll also see that output is set to 0-255
So ATI outputs Limited RGB, my TV input is set to Limited RGB. Then i'm really confused why i messure 0 for black and 255 for white.
Just played the MP4 Black Pattern again inside MediaPortal and i only see 17-25 flash.
** EDIT **
Doens't have to be. If you output 0-255 and set input to 16-235 then you also will see lots of blacks
In this particular case, taking a screenshot will show you 0-255 levels. This is because the video decoder is being told by the drivers that it's a PC and therefore PC levels should be used and thus the decoder is outputting 0-255. The ATI drivers then take all video output before it gets to the HDMI port and compress the levels to 16-235 because you have Pixel Format set to Limited. So basically all your content gets compressed to 16-235, which is why your desktop, video, pictures, etc. all look the same/similar in terms of black levels.
If your screenshot showed levels of 16-235 then you should be even more worried, because that would mean the 16-235 levels are then getting compressed by the ATI drivers even further to 32-215! You definitely don't want that.
Because you're seeing 17-25 then you know for a fact that you aren't losing video details. You need not worry about that. You're losing 0-16 but that isn't important for video content.
The other option to all of this is output 16-235 at the decoder level and let ATI output 0-255. But then your desktop, pictures, etc. would look darker than your video. The Pixel Format was a grace from ATI to allow us HTPC users to set everything to the same.
I tried the older evr.dll and still had the washed out screens. Just for kicks I looked in the Mediaportal config XML file and found a label called useEVRenderer and changed the value to yes from no. It appears to have fixed the washed out screens, at least for me. I have not gone back and changed the evr.dll back to the newer one so I don't know if just turning on the useEVRenderer fixes the problem.