madVR - high quality video renderer (GPU assisted)

[dado023]

The short answer is if your PC is not dropping or glitching frames then your MadVR is functioning as intended.
In regards quality it's your choice as to which scaling algorithm you use, whatever suits your content and looks good to you and doesn't cause any frame related errors.
There are no "best quality" options with upscaling the 'trade quality for performance' options are not enabled by default and thus MadVR is setup for the highest output quality out of the box.

then i am all set :)......

but again, i wonder, beacuse by default luma upscaling is set to Lanczos which has high red bars???

how come this is default when it has red bars on aliasing and ringing:script:?

[nand chan]

The short answer is if your PC is not dropping or glitching frames then your MadVR is functioning as intended.

Unless the levels are being detected incorrectly which you would have to fix with “force to full range input” or whatever, but that shouldn't really be an issue with 99.999% of the content out there (number pulled out of my ass).

[luk008]

I've started using madVR recently.
I have dual boot with XP and Seven x64.
I've realized that when I run mpc-hc on seven there are a lot of presentation glitches (120 per episode), but this doesn't occur on XP.
Why this happen?
I'm using spline and my GPU is 9800 GT 520 MB

Thanks

[nabow]

I've started using madVR recently.
I have dual boot with XP and Seven x64.
I've realized that when I run mpc-hc on seven there are a lot of presentation glitches (120 per episode), but this doesn't occur on XP.
Why this happen?
I'm using spline and my GPU is 9800 GT 520 MB

Thanks

Maybe spline is too high for you, when i play some hd files, gpu-z reports around 400mb memory usage.

[nabow]

Can anybody upload or just post some links with samples of vc1 interlaced material please? (.m2ts and .mkv)

Google is not my friend this time.

Thanks in advance!

http://www.demo-world.eu/trailers/high-definition-trailers.php

http://www.avsforum.com/avs-vb/showthread.php?t=1157287

[kalston]

I've started using madVR recently.
I have dual boot with XP and Seven x64.
I've realized that when I run mpc-hc on seven there are a lot of presentation glitches (120 per episode), but this doesn't occur on XP.
Why this happen?
I'm using spline and my GPU is 9800 GT 520 MB

Thanks

Could be the common nVidia driver issues a lot of people are having (apparently madshi experienced it himself).

Maybe you have the latest drivers (280.xx) on 7 64 but are using older ones on XP (would have to be 260.xx or older)?

Your GPU is, IMO, beefy enough even for HD. I had a 8800GTS 512 not so long ago and it didn't struggle at all with HD playback and madVR's scaling settings.

[Blight]

Madshi:
I implemented video position/zoom that doesn't move the destination window.
All seems well, except for some reason, GPU load goes up by about 50%-100% when zooming in.
I'm not sure if it's a bug or if the clipping requires more horse power.

[nand chan]

Would it be possible to use /multiple/ .3dluts, say, 3x2 that are sampled at different points on the screen, and interpolated in realtime, to account for panel uniformity issues?
Would it even be possible to interpolate the 4 results in realtime on a GPU? I'd guess it should.

This was an idea suggested to be my SoupRKnowva, but I like the sound of it. It's the only way to create location-aware .3dluts (without going for the full 200 TB-sized 1920x1080x256x256x256 LUTs).

[Andy o]

Is anybody doing IVTC successfully (displayed at 24p) with madVR and an AMD card, specifically with NTSC DVD-remuxed MPEG 2? I tried Dscaler IVTC but I'm just getting crashes when trying to open the decoder's properties, and it's not working right out of the box so to speak. I can get IVTC without problem if I use DXVA, but of course madVR is out.

In a related note, I suppose Nvidia has an advantage on this with decoders like LAV CUVID?

[Mark_A_W]

Is anybody doing IVTC successfully (displayed at 24p) with madVR and an AMD card, specifically with NTSC DVD-remuxed MPEG 2? I tried Dscaler IVTC but I'm just getting crashes when trying to open the decoder's properties, and it's not working right out of the box so to speak. I can get IVTC without problem if I use DXVA, but of course madVR is out.

In a related note, I suppose Nvidia has an advantage on this with decoders like LAV CUVID?

I'm using an AMD 4850 and madVR, with Dscaler IVTC.

The Dscaler properties are only available (or only stick) when accessed during playback. I can't say much about your crash - but it doesn't crash for me.

It works brilliantly for IVTC on 1080i 60hz (really 24p) TS files.

But for NTSC dvd almost any decoder will do IVTC. It's only 1080i TS files that were problematic.

[nevcairiel]

You need to open the properties through GraphStudio or something, MPC-HC will crash because of security guidelines from DEP.

[Andy o]

Ah, thanks both. But my reason for trying DScaler was that other MPEG-2 decoders didn't do IVTC with 480i content (DVD-sourced). Was I missing something? I tried LAV video, ffdshow, and the MPC one. Also Cyberlink's PDVD8 in SW mode. They still gave me interlacing artifacts and no IVTC at all. When using a DXVA chain (AMD 5770) it was fine though. If I can't get this to work, I might swap to my GTX 460 once again.

[Shah Jahan]

Is there a way to make madVR work with TotalMedia Theatre 5 (TMT5)?

[mzso]

Is there a way to make madVR work with TotalMedia Theatre 5 (TMT5)?

Nope.

[italospain]

I'm using an AMD 4850 and madVR, with Dscaler IVTC.

The Dscaler properties are only available (or only stick) when accessed during playback. I can't say much about your crash - but it doesn't crash for me.

It works brilliantly for IVTC on 1080i 60hz (really 24p) TS files.

But for NTSC dvd almost any decoder will do IVTC. It's only 1080i TS files that were problematic.

I have a lot ntsc dvd´s only DScaler IVTC Mod is able to do IVTC right together with madVR (no hardware IVTC) .

[TheElix]

Nope.
He's right.

[noee]

Ah, thanks both. But my reason for trying DScaler was that other MPEG-2 decoders didn't do IVTC with 480i content (DVD-sourced). Was I missing something? I tried LAV video, ffdshow, and the MPC one. Also Cyberlink's PDVD8 in SW mode. They still gave me interlacing artifacts and no IVTC at all. When using a DXVA chain (AMD 5770) it was fine though. If I can't get this to work, I might swap to my GTX 460 once again.

I'm using Dscaler ivtc mod with HD6570 and HD6520, both with madVR, using jRiver Media Center, works great with my ripped NTSC DVD material. Dscaler props crash because of MPC-HC DEP, works fine with jRiver.

[Portioli]

Cancel post, delete it!

[Gser]

DScaler IVTC mod works sometimes on 1080i files and sometimes there is a lot of weaving (tested on reference blu-ray material). Personally I prefer to use FFDshow with the DScaler Phase filter from Direct264. http://forum.doom9.org/showthread.php?p=1189064 Download link here https://code.google.com/p/direct264umod/

[Budtz]

I seem to be getting a dropped frame about every five minutes. This is with reclock. Shouldnt this be better? I have monitor on 24hz as well as the video and the clock icon is green. I think it goes up from 3 to 5 minutes if i enable reclock.

My playback is very smoth and i have a pretty good tv so i notice it when it happens.

[ryrynz]

Is this on all content? What rendering settings have you tried? Is this with windowed or exclusive mode? What are your current settings and system specs?

[Budtz]

This is on all content. I have pretty much default settings i think. i have enabled v-sync on my nvidia 570 and adjusted the flushing a bit in madvr. reclock is setting the content to 24frames. Madvr says it drops a frame about every 5minutes but i dont see them croping up in the stats. but i clearly see it if a frame is droped during panning shots. It seems like a commen problem not getting a perfect sync in this scenario.
any ideas?

[Qaq]

Budtz, make sure Vsync is disabled in ReClock.

[Xaurus]

This is on all content. I have pretty much default settings i think. i have enabled v-sync on my nvidia 570 and adjusted the flushing a bit in madvr. reclock is setting the content to 24frames. Madvr says it drops a frame about every 5minutes but i dont see them croping up in the stats. but i clearly see it if a frame is droped during panning shots. It seems like a commen problem not getting a perfect sync in this scenario.
any ideas?
Yes, this was the same issue I had. Disable vsync in reclock and it is 0 dropped frames for the duration of the movie.

[Portioli]

has anybody tried VC-1 software de-interlace with MADvr (for ATI users)?
can anybody send my some links with bigger VC1i content than AVSforum samples?

[Budtz]

thx guys. it worked deactivating vsync in reclock. it jumped to a dropped frame every 2 hours

[jmonier]

has anybody tried VC-1 software de-interlace with MADvr (for ATI users)?

I believe that the Microsoft WMV DMO decoder is the only software solution for VC-1 de-interlace. It requires a VERY strong cpu, however. I could only make it work without glitches on an i7.

(I believe that the Cyberlink and Arcsoft decoders use DXVA and thus don't work with madVR. They are very tricky to make work outside of their players, anyway.)

[SamuriHL]

Not true for Cyberlink decoders. For AMD, it's the only decoder I know of to use GPU assisted software decoding. It's what I was using for a decoder until LAV Video was released. At least on my AMD machines. Works fine with madVR.

[jmonier]

Not true for Cyberlink decoders. For AMD, it's the only decoder I know of to use GPU assisted software decoding. It's what I was using for a decoder until LAV Video was released. At least on my AMD machines. Works fine with madVR.

Thanks for the info. I knew that Cyberlink had to use some sort of hardware assist and I just assumed that it was DXVA.

Note, however, that LAV Video (as opposed to LAV CUVID) does not work with VC-1 interlaced (which is what the OP was inquiring about).

[SamuriHL]

Yup, that's absolutely true about VC-1i and LAV Video. Fortunately I don't have too much of that kicking around and J River's MC16 offers a smart way of handling that which is why I can use LAV Video and not worry about it.

[dansrfe]

I have a question about screen savers and blanking one of the screens in a dual monitor setup if only one of the monitors are being used to watch a clip in windowed or exclusive mode.

For example: I have a dual monitor setup in which I am watching a movie in exclusive mode on Monitor #2 and I am using Monitor #1 sometimes or not using it at all for long periods of time in which the screen still remains on. Normally if I don't move the mouse or touch the keyboard for 2 minutes then I have set the screen to "shut-off signal" and both monitors go blank. Is there a way to apply this same rule on Monitor #1 or Monitor #2 if only the other is being used with madVR? In other words, is it possible for Monitor #1 to shut-off signal and go blank if Monitor #2 is displaying a movie in exclusive mode?

[mindbomb]

wait, so wmvideo decoder dmo doesnt just weave with madvr?
i know with evr it will do hardware deinterlacing, i was hoping it wouldn't do any deinterlacing with madvr so i could use yadif myself.

[nevcairiel]

It doesn't do any deinterlacing, as far as i am aware.

[ForceX]

wait, so wmvideo decoder dmo doesnt just weave with madvr?
i know with evr it will do hardware deinterlacing, i was hoping it wouldn't do any deinterlacing with madvr so i could use yadif myself.
http://www.citizeninsomniac.com/WMV/#WMV9PowerToy

[Qaq]

"...uses a simple blend deinterlacing method"

[mindbomb]

it can do simple blend deinterlacing, but it appears like it is off by default.

[Budtz]

I seem to have a bit of lag and audio/video sync issues when i set my samsung ue40d6505 tv at 24z. ether with madvr or a blurayplayer. can any1 explain this? it dosnt do it in 60hz mode. this is regardles of content framerate.

Also motion interpolation dosnt work on the pc. It does with bluray and tv. The signal must be different somehow from that of the bluray player yes? I like to turn it up just at 1 setting out of 10 wich makes quete a difference yet keeping af film-feel. Is there a way to do adjustable motion interpoltion with mpc-hc madvr ect. and how does this work? I know i can set the tv to pc mode but its crap and unsuitable for watching movies from a pc.

[pirlouy]

I seem to have a bit of lag and audio/video sync issues when i set my samsung ue40d6505 tv at 24z. ether with madvr or a blurayplayer. can any1 explain this? it dosnt do it in 60hz mode. this is regardles of content framerate.
Try without Aero.

[Messiah]

I'm trying to calibrate my LG 50PK550 using AVS HD 709 patterns.

I've fired up Black Clipping sample, ahd have a very strange problem.

I set Black level to high on my LG(0-255).
But if I tell madVR that my display expects 0-255, i only see bars 18-25 flashing.
If I set to 16-235 then I see bars 2-25 flashing.
Should that be other way around?

Of course, if I set LG black level to low, I see only bars 18-25 flashing...

My LG is connected through Marantz SR5004 receiver(maybe this causes problems), and HTPC is Zacate (AMD E-350 Fusion).

[lostzilla]

Hi. I have a problem.
When I enable full screen and then minimize my player (potplayer), i get an error (resetting Direct3D device failed (88760868) and the player crashes.

I saw that this bug was fixed in a previous update but i still having it.
How could it be solved?

Other thing, do I recomend a configuration for a nvidia GTX 470?

Thanks a lot.

[Xaurus]

I'm trying to calibrate my LG 50PK550 using AVS HD 709 patterns.

I've fired up Black Clipping sample, ahd have a very strange problem.

I set Black level to high on my LG(0-255).
But if I tell madVR that my display expects 0-255, i only see bars 18-25 flashing.
If I set to 16-235 then I see bars 2-25 flashing.
Should that be other way around?

Of course, if I set LG black level to low, I see only bars 18-25 flashing...

My LG is connected through Marantz SR5004 receiver(maybe this causes problems), and HTPC is Zacate (AMD E-350 Fusion).
I have the same set as you do (only 60" version) and if you set the LG to "high" and madvr to 0-255 it will be OK.

I am using Nvidia though, so I am not sure how that would be compared to your Fusion (I assume it has integrated graphics).

edit:
By the way, if you don't have calibration tools for your TV (like me) and have tried many different settings for your set, you can look at this post:
http://www.avforums.com/forums/14947541-post43.html

It basically made my day after trying X number of expert 1/2 settings and never being completely happy.

[Messiah]

I have the same set as you do (only 60" version) and if you set the LG to "high" and madvr to 0-255 it will be OK. Gamma on "medium" and brightness at 50 on the LG.

I am using Nvidia though, so I am not sure how that would be compared to your Fusion (I assume it has integrated graphics).

edit:
By the way, if you don't have calibration tools for your TV (like me) and have tried many different settings for your set, you can look at this post:
http://www.avforums.com/forums/14947541-post43.html

I have Eye One display 2 so I wan't to calibrate my TV properly.

But when I choose 0-255 in madVR, I only see 18-255 flashing, and when I choose 16-235, I see 2-25 flashing.

Should RGB Limited clip all values under 16?

EDIT: Zacate uses integrated 6310, in AMD Vision I set up pixel format 4:4:4 Full RGB PC Levels.

[Mark_A_W]

I have a question about screen savers and blanking one of the screens in a dual monitor setup if only one of the monitors are being used to watch a clip in windowed or exclusive mode.

For example: I have a dual monitor setup in which I am watching a movie in exclusive mode on Monitor #2 and I am using Monitor #1 sometimes or not using it at all for long periods of time in which the screen still remains on. Normally if I don't move the mouse or touch the keyboard for 2 minutes then I have set the screen to "shut-off signal" and both monitors go blank. Is there a way to apply this same rule on Monitor #1 or Monitor #2 if only the other is being used with madVR? In other words, is it possible for Monitor #1 to shut-off signal and go blank if Monitor #2 is displaying a movie in exclusive mode?

I have a similar setup, and I, umm.....turn the other monitor off...you know with my finger, on the button, so to speak.. ;)

Sorry....but everything doesn't *have* to be automated.

[nand chan]

I have a similar setup, and I, umm.....turn the other monitor off...you know with my finger, on the button, so to speak.. ;)

Sorry....but everything doesn't *have* to be automated.

Haha wow, yes, this. I think most of use / many of us have more than one monitor. They have a power button for a reason.

[silverking93]

Dear Madshi,
There is a problem that I've been having for quite a long time. It's the same problem that 3ngel had back on page 209, but to my knowledge, he never got it resolved. I've had to resort to watching low quality videos on the default renderer (using MPC-HC), which is irritating to say the least.

Whenever I open a video, shown in the upper left-hand corner is this message:

madVR reports:
-creating Direct3D device failed (8876086c)

This is extremely frustrating, because no amount of option-tweaking will fix it. I'm running a Dell Latitude d620 with an Intel 945gm Mobile Chipset. It has 224.0 MB of memory, and supports Dx9 Direct3D. I'm running windows XP. As far as I know, I meet the minimum hardware requirements. What can I do to resolve this problem?

Thank you for your time.

P.S. I tried to do the debug routine using the madVR[debug].ax file and switching the name and all that, but it didn't put a text file on the desktop. Otherwise, I would post a link to the log right now. If you would like to send me a personal message, I can give you an email address by which you can contact me, if that makes things easier for you. Thanks again.

[nand chan]

The madVR/3DLUT workflow has been odd, or rather complex, ever since 0.62 when madshi moved to RGB and offloaded various operations to shaders.

It looks something like the following with BT.709 input:

madVR:
(1) input = 8bit Y'CbCr, 709 primaries/gamut, 709 gamma, WTW/BTB, D65 White Point
(2) convert -> 32bit float R'G'B', 709 primaries/gamut, 709 gamma, WTW/BTB, D65 White Point
(3) convert -> 32bit float RGB, 709 primaries/gamut, linear light, WTW/BTB, D65 White Point
(4) convert -> 32bit float RGB, Display primaries/gamut, linear light, WTW/BTB, D65 White Point
(5) convert -> 32bit float R'G'B', Display primaries/gamut, pure power 2.2 gamma, WTW/BTB, D65 White Point
3dlut:
(6) input = 8bit float R'G'B', Display primaries/gamut, pure power 2.2 gamma (with trilinear interpolation), WTW/BTB, D65 White Point
(7) convert -> 64bit float RGB, Display primaries/gamut, linear light, 16-235, D65 White Point
(8) convert -> 64bit float RGB, Display primaries/gamut, linear light, 16-235, Display White Point
(9) convert -> 16bit int R'G'B', Display primaries/gamut, Display corrected gamma, 16-235, Display White Point
madVR:
(10) input = 16bit int R'G'B', Display primaries/gamut, Display corrected gamma, 16-235, Display White Point
(11) dither down to 8bit R'G'B', Display primaries/gamut, Display corrected gamma, 16-235, Display White Point

You'll need to use madVR <=0.61 if you want the old behavior of the 3DLUT doing everything (YUV->RGB, Gamut Correction, Gamma Correction, White Point Correction, Levels Expansion) with no shaders. I still like the old way better, for the added flexibility you get with 3DLUT creation.

I'm experimenting around with gamma adjustment and gamut mapping.

As far as I can tell, when my value hits the .3dlut in step (6), it's expected to be encoded using a pure power of 2.2, correct? So the first thing I do is decode it back to rgb (or linear RGB) by raising it to a power of 2.2.

Then I do whatever I wish with the value (eg. nothing), and I convert it back to the display's expected gamma level by raising it to, say, 1/2.2 - which will, assuming an ideal 2.2 gamma display, give me a linear intensity again.

I was under the impression, however, that adjusting the encoded for display gamma to /higher/ values (eg. 2.35) will make the image appear slightly darker as a result - however, if I plug those values in (decode using 2.2, encode using 1/2.35), the image appears brighter than before.

Where exactly am I going wrong here? Wouldn't encoding with 1/2.35 make the encoded R'G'B' signal match that of a 2.35 monitor (and since my monitor only has a 2.2 input to luminosity exponent, it /should/ appear darker than intended)?

[cyberbeing]

It's brighter since the 1/2.35 encoding is linearized to 1.0, and afterwards it's returned to the decode gamma of 2.2.

Have you tried enabling gamma correction in madVR and setting it to 2.35? IIRC, that should return 1/2.35 data which was linearized, back to a gamma to 2.35. Step (9) is actually a madVR shader step, where madVR does any gamma correction needed to the 2.2 gamma 3dlut based on the information in 3dlut header and user settings.

Since I've never used or asked specifically about how gamma correction works in madVR, I'm only half-certain the above is correct. Madshi or yesgrey, please correct me if I'm way off.

[nand chan]

It's brighter since the 1/2.35 encoding is linearized to 1.0, and afterwards it's returned to the decode gamma of 2.2.

But that contradicts your earlier statement - according to the steps posted earlier, madVR would linearize + encode it to 2.2 before it touches the .3dlut, not afterwards. So any processing I do in the .3dlut would directly affect the output.

Have you tried enabling gamma correction in madVR and setting it to 2.35? IIRC, that should return 1/2.35 data which was linearized, back to a gamma to 2.35.

At which step does the madVR gamma correction apply? Before the .3dlut or after it?

What I'm basically trying to do is simulate the effects of the madVR gamma correction using a .3dlut, so using the actual tool would defeat the purpose.

Step (9) is actually a madVR shader step, where madVR does gamma correction with the 2.2 gamma 3dlut based on the information in 3dlut header and user settings.

1. madVR does not read gamma information out of the .3dlut header.
2. If you were referring to the gamut correction which madVR performs, it does that before the values enter the .3dlut - it reads out the input primaries information from the .3dlut and scales the colors into that color space. To my knowledge, madVR shouldn't be touching the output of the .3dlut, other than dithering it down to screen depth (+ rendering subtitles).

I'll probably have to ask madshi about this.

Edit: Never mind, I approached the problem visually (as I love to do), and the solution began to become clear to me.

http://img12.imageshack.us/img12/6180/gamman.png

I was mixing up the two curves. The red line is a 2.2 display, the light blue line is a 2.2 signal for that display. The two, when applied in succession, result in the purple line in the center which is the linear light output.

However, if I use a 2.35 display (darker), I need to encode a /brighter/ curve (1/2.35, shown in dark blue) to compensate. As a result, a brighter curve on the same display appears brighter.

Edit 2: Also, thinking about it this way, made me realize how to achieve the result I want.

In essence, I want to compute the value which would be equal to a (1/2.2) encoded value being rendered on a 2.35 screen - which would appear slightly darker.

Or, in other words, I want my x₂ = (x₁∧(1/2.2))∧2.35. Now, we know that our original input x₁' = x₁∧(1/2.2) since madVR adjusts to 2.2 PPC already before it hits the .3dlut, so we can pop that right into the formula: x₂ = x₁'∧2.35. And, of course, since we know our display is x₂=x₂'∧2.2, we just need to compensate for that: x₂' = x₂∧(1/2.2) = (x₁'∧2.35)∧(1/2.2).

And there we have our formula:

1. Exponentiate to the new desired gamma curve
2. Exponentiate to the inverse of the old gamma curve

[cyberbeing]

Edit: After reading your edit, my reply isn't needed? If I completely misunderstood what you were trying to figure out, disregard the below.

But that contradicts your earlier statement - according to the steps posted earlier, madVR would linearize + encode it to 2.2 before it touches the .3dlut, not afterwards. So any processing I do in the .3dlut would directly affect the output.

As of step (6), the video has been converted to gamma of 2.2.
In step (7) the video which has a gamma of 2.2 is converted to linear light.
If you use 1/2.35 as the encoding for the 3dlut, everything will get brighter in step (7) since the video isn't 2.35, it's 2.2.

IIRC, madVR does read the 3dlut header to decide how to convert to linear light for step (7), but madshi would need to confirm. The longer I go on trying the explain things, the more likely I'm going to get something wrong.

Encoding gamma (3dlut) = madVR gamma (gamma correction setting) is equivalent to no gamma correction. In other words, the 3dlut set with an encoding of 1/2.35 and madVR set to 2.35, it means no gamma correction is performed by madVR shaders.

At which step does the madVR gamma correction apply? Before the .3dlut or after it?
I guess you could consider it 'after', but it's really 'during'. In step (9), madVR shaders manipulate the 3dlut data to perform gamma correction as needed. Take a look at how the headers of 3DLUTs created within madVR look when gamma correction is enabled and set to 2.35, to get an idea how this is signaled.

What I'm basically trying to do is simulate the effects of the madVR gamma correction using a .3dlut, so using the actual tool would defeat the purpose.
yesgrey would be your man for questions such as these. This is the limits of my knowledge on the subject, since I stay the hell away from gamma correction done by yCMS+madVR in my setup.

Edit2: madshi, I hope you can push out a new version of madVR soon which fixes the problem of it holding onto decoder references when a new video is opened. It causes a new instance of CoreAVC 3.x to be created each time, resulting in what is basically a memory leak.

[G_M_C]

I must say i'm getting a bit annoyed getting MadVR to work.

I'm on Win7-64, using 32 bit version of MPC-HT (current).
I downloaded madVR 074 and put it in C:\MadVR. I'm logged in as admin and runned install.bat, even tried activating the administrator account with the 'net user ...' command.

When i want to open madVR's setting page, it keeps complaining that the instance cannot be found, and to make sure the firewall isnt blocking madvr. But even if i disable the firewall it wont work.

What to do ?