madVR - high quality video renderer (GPU assisted) - Page 1744

jebediah · 25th December 2015, 22:35

I have no idea if this is caused by madVR or something else, but i just bought a new 4K TV and have some problems with 720p movies.
Every time a watch a 720p movies i got 5cm black bars on the left and right side, almost like if the movie is scaled wrong. 1080p and 4K material seems to be right, so it's just 720p and maybe lower resolution.
Any iadea why and how i can fix this?

huhn · 25th December 2015, 23:14

Quote:

Originally Posted by jebediah

I have no idea if this is caused by madVR or something else, but i just bought a new 4K TV and have some problems with 720p movies.
Every time a watch a 720p movies i got 5cm black bars on the left and right side, almost like if the movie is scaled wrong. 1080p and 4K material seems to be right, so it's just 720p and maybe lower resolution.
Any iadea why and how i can fix this?

can you make a screen from the OSD?

jebediah · 26th December 2015, 00:22

Quote:

Originally Posted by huhn

can you make a screen from the OSD?

Sorry but i don't know what you mean. OSD=On screen display, but what else do you want to know?
English is not my native language so have patience with me

huhn · 26th December 2015, 00:59

you can show it with control + J

jebediah · 26th December 2015, 03:05

Quote:

Originally Posted by huhn

you can show it with control + J

Oh sorry. Did not know about that feature. Anyway.... http://s24.postimg.org/48ld5lfs3/20151226_025640.jpg
And thanks for the fast reply

Razoola · 26th December 2015, 11:20

I think madshi is going to want to know the 4k resolution your UHD TV supports and what resolution you are choosing to use (4096 x 2160 or 3840 x 2160)? Do you have madVR or other software changing the screen resolution based on content/framerate also?

Seems to me you are using 4096 x 2160 but madVR is expecting 3840 x 2160. I say this because based on your sceenshot 3840+128+128=4096 and your OSD reports the left black bar is 128 pixels wide.

jebediah · 26th December 2015, 15:47

Quote:

Originally Posted by Razoola

I think madshi is going to want to know the 4k resolution your UHD TV supports and what resolution you are choosing to use (4096 x 2160 or 3840 x 2160)? Do you have madVR or other software changing the screen resolution based on content/framerate also?

Seems to me you are using 4096 x 2160 but madVR is expecting 3840 x 2160. I say this because based on your sceenshot 3840+128+128=4096 and your OSD reports the left black bar is 128 pixels wide.

Just found out that i've forgot to set up my display modes in madVR. Seems to work fine now.

rodrigo081089 · 26th December 2015, 18:20

I have no idea why, but now when i open the mpc with madvr it crashes and i can´t watch any video.

If i choose the system default render the mpc works ok

huhn · 26th December 2015, 20:10

what type of error do you get and what type of hardware is used?

jebediah · 26th December 2015, 20:21

Got a new question for you guys.
How do i "activate" ycbcr444 on MPC-HC/madVR?
I've chosen ycbcr444 in the Nvidia control panel, but madVR still says 4:2:0 when i'm watching movies.
http://s12.postimg.org/4pdkbltod/Untitled_1.jpg

Asmodian · 26th December 2015, 20:45

Quote:

Originally Posted by jebediah

Got a new question for you guys.
How do i "activate" ycbcr444 on MPC-HC/madVR?
I've chosen ycbcr444 in the Nvidia control panel, but madVR still says 4:2:0 when i'm watching movies.
http://s12.postimg.org/4pdkbltod/Untitled_1.jpg

That is what madVR is receiving from LAV video, not what it is outputting. MadVR always outputs RGB.

rodrigo081089 · 26th December 2015, 20:55

Quote:

Originally Posted by huhn

what type of error do you get and what type of hardware is used?

Thanks, but i fixed it. The problem was because yesterday i installed nvidia 3d play tv, after i unistalled it the mpc worked again with madvr

jebediah · 26th December 2015, 22:12

Quote:

Originally Posted by Asmodian

That is what madVR is receiving from LAV video, not what it is outputting. MadVR always outputs RGB.

Sorry. This is kinda new for me and i have no clue how it works. So the color space comes from the movie it self and not the player?
Also, why are madVR use RGB as output? I thought YCbCr444 was a requirement to run 4K material at 60hz?

I have some video demo (yes legal) that i'm running, both 1080p and 4K

huhn · 26th December 2015, 22:53

you can use RGB for UHD

Nullack · 26th December 2015, 23:45

Hi, feature request idea please. Now that Im using madVR I am missing features I used to use allot from the MPC-BE stats renderer that I found useful. These are:

* CPU utilisation
* GPU utilisation
* Description of the codec used in decoding and what it is - e.g. DXVA 2 H.264 or software MPEG4PT2ASP etc

Please consider

Warner306 · 26th December 2015, 23:52

Quote:

Originally Posted by jebediah

Sorry. This is kinda new for me and i have no clue how it works. So the color space comes from the movie it self and not the player?
Also, why are madVR use RGB as output? I thought YCbCr444 was a requirement to run 4K material at 60hz?

I have some video demo (yes legal) that i'm running, both 1080p and 4K

madVR will output in RGB, either way. So converting the output at the GPU probably isn't necessary.

And RGB and YCbCr 4:4:4 are basically the same thing -- no subsampling is used.

aufkrawall · 27th December 2015, 00:05

Quote:

Originally Posted by Warner306

madVR will output in RGB, either way. So converting the output at the GPU probably isn't necessary.

madVR should to RGB conversion since dither then is applied after scaling and not before (which is not optimal).

jebediah · 27th December 2015, 01:10

Quote:

Originally Posted by huhn

you can use RGB for UHD

Quote:

Originally Posted by Warner306

madVR will output in RGB, either way. So converting the output at the GPU probably isn't necessary.

And RGB and YCbCr 4:4:4 are basically the same thing -- no subsampling is used.

Thanks. Thought there was something speciall about YCbCr 4:4:4 since my TV gave me a notice that with HDMI Deep color, 4:4:4 or 4:2:0 was the best choice

Warner306 · 27th December 2015, 07:25

Quote:

Originally Posted by jebediah

Thanks. Thought there was something speciall about YCbCr 4:4:4 since my TV game me a notice that with HDMI Deep color, 4:4:4 or 4:2:0 was the best choice

RGB is a PC color space. YCbCr is a TV color space. Your TV will talk to you in its language.

huhn · 27th December 2015, 12:23

Quote:

Originally Posted by Warner306

RGB is a PC color space. YCbCr is a TV color space. Your TV will talk to you in its language.

that's not true. YCbCr was invented to sub sample and encode a picture in a meaningful way so it can be encoded more efficiently.
nearly all LCD TVs have an RGB LCD grid so the TV has to use RGB in the end. and of cause this conversation isn't lossless.

YCbCr should be avoid.

26th December 2015, 11:20	#34866 \| Link
Razoola Registered User Join Date: May 2007 Posts: 454	I think madshi is going to want to know the 4k resolution your UHD TV supports and what resolution you are choosing to use (4096 x 2160 or 3840 x 2160)? Do you have madVR or other software changing the screen resolution based on content/framerate also? Seems to me you are using 4096 x 2160 but madVR is expecting 3840 x 2160. I say this because based on your sceenshot 3840+128+128=4096 and your OSD reports the left black bar is 128 pixels wide. Last edited by Razoola; 26th December 2015 at 11:29.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

25th December 2015, 22:35	#34861 \| Link
jebediah Registered User Join Date: Oct 2013 Posts: 24	I have no idea if this is caused by madVR or something else, but i just bought a new 4K TV and have some problems with 720p movies. Every time a watch a 720p movies i got 5cm black bars on the left and right side, almost like if the movie is scaled wrong. 1080p and 4K material seems to be right, so it's just 720p and maybe lower resolution. Any iadea why and how i can fix this?

26th December 2015, 00:59	#34864 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 7,923	you can show it with control + J

26th December 2015, 18:20	#34868 \| Link
rodrigo081089 Registered User Join Date: Dec 2013 Posts: 17	I have no idea why, but now when i open the mpc with madvr it crashes and i can´t watch any video. If i choose the system default render the mpc works ok

26th December 2015, 20:10	#34869 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 7,923	what type of error do you get and what type of hardware is used?

26th December 2015, 20:21	#34870 \| Link
jebediah Registered User Join Date: Oct 2013 Posts: 24	Got a new question for you guys. How do i "activate" ycbcr444 on MPC-HC/madVR? I've chosen ycbcr444 in the Nvidia control panel, but madVR still says 4:2:0 when i'm watching movies. http://s12.postimg.org/4pdkbltod/Untitled_1.jpg

26th December 2015, 22:53	#34874 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 7,923	you can use RGB for UHD

26th December 2015, 23:45	#34875 \| Link
Nullack Registered User Join Date: May 2015 Posts: 188	Hi, feature request idea please. Now that Im using madVR I am missing features I used to use allot from the MPC-BE stats renderer that I found useful. These are: * CPU utilisation * GPU utilisation * Description of the codec used in decoding and what it is - e.g. DXVA 2 H.264 or software MPEG4PT2ASP etc Please consider