madVR - high quality video renderer (GPU assisted)

[ryrynz]

Rendering performance for my HD4890 1GB on the 720 H264 file is about 55% resizing up to 1680x1050. So it would make sense that the HD5750 512MB resizing to 1920x1080 is having a much harder time.
I thought performance was better than this though, I have been mostly playing back SD content so perhaps I underestimated just how hard the GPU has to work in order to achieve an upscale to 1920x1080 from 1280x720 using Lanczos4 and Softcubic100.

yup, it'll be standing on your desktop.

Cheers Lee.

*Update* Changed the screen resolution to 1280x720 and resizers to bilinear, GPU is till at 90%, weird considering the screen resolution is now the same as source file.

Tested with version 0.11/0.12 and Bilinear upscaling, downscaling and resampling offer smooth performance with GPU at 50%
Cranking it up to Lanczos4 and Softcubic100 still offers acceptable performance at around 80% and frames are only dropped on startup.

0.13 is where things get incredibly slow displaying the 720 H264 vid, setting all to bilinear the GPU is still at 90% and frames drop like crazy.

Madshi, let me know if you would like a log.

[ryrynz]

oddball, perhaps your having the same issue as I am, check your GPU usage with GPU-Z

[BeNooL]

Originally Posted by jeremy33

Hi and thanks for this very good renderer.

Is it possible to have an option to disable luma / chroma up/downsampling because I upscale the video with ffdshow ?

Bonjour Jeremy33

This would be counter productive as MadVR's purpose is to do this convertion in the most precise manner possible.
If you take a look at the screenshots in the 1st page you'll see the kind of quality difference you can expect.

You can still use FFDshow for other processing but stay in YV12.

[BeNooL]

Originally Posted by SantinoSan

I am running on an ATI 4550. I did try changing the resizers and it made no difference. The GPU never registered any usage above 0% while running with madVR, while it would read around 30% when using DXVA with EVR.

I'm using an ATI 4550 too and it works fine with MadVR doing anything (SD to HD) scaling to 1920x1080 60Hz.

Catalyst 10.6 and MPC-HC 1.3.2099.

[oddball]

Hope this is not a stupid question. How do I find out the stats like frames dropped, vsync etc in MadVR?

[namaiki]

Ctrl+J ten characters

[oddball]

So tiny. Any way to make the text bigger. I have to get out the magnifying glass.

[pirlouy]

Great, as specified, no tearing anymore !
It is now my official renderer.

[BatKnight]

Hi,

I have the fullscreen refresh-rate autochange enabled at MPC-HC, so when I play a 23.976fps file, the refresh rate changes from 60Hz to 24Hz when I go fullscreen. Everything ok for now.
After being fullscreen and at 24Hz, if i rightclick my mouse to open the menu of MPC-HC then madVR goes to Windowed mode and the refresh rate goes back to 60Hz and never returns to 24Hz, not even if I un-fullscreen and fullscreen it again. It changes to exclusive mode if I leave my mouse alone, but the 24Hz is lost until I restart the player.

This doesn't happen with EVR Custom, for example.
Any ideas?

Bat

[dansrfe]

madshi, I have two feature requests.

1) An option to downsize to half resolution on initial file open when resolution of source file is > resolution of screen.

2) I have mixed feelings about the "Sharpness" option in Haali Renderer. I like the look it provides when upscaling from a regular dvd resolution or files around that resolution to 1920 x 1080. However, afaik the sharpening can increase noise or create other problems can it not? Anyways please share your thoughts on this.

Thanks.

[namaiki]

Originally Posted by dansrfe

2) I have mixed feelings about the "Sharpness" option in Haali Renderer. I like the look it provides when upscaling from a regular dvd resolution or files around that resolution to 1920 x 1080. However, afaik the sharpening can increase noise or create other problems can it not? Anyways please share your thoughts on this.

In madVR, there are options for bicubic 50-75/80 as well (aka sharpness, A=-0.50 to A=-0.80).

[Hypernova]

Originally Posted by BatKnight

Hi,

I have the fullscreen refresh-rate autochange enabled at MPC-HC, so when I play a 23.976fps file, the refresh rate changes from 60Hz to 24Hz when I go fullscreen. Everything ok for now.
After being fullscreen and at 24Hz, if i rightclick my mouse to open the menu of MPC-HC then madVR goes to Windowed mode and the refresh rate goes back to 60Hz and never returns to 24Hz, not even if I un-fullscreen and fullscreen it again. It changes to exclusive mode if I leave my mouse alone, but the 24Hz is lost until I restart the player.

This doesn't happen with EVR Custom, for example.
Any ideas?

Bat

First, did you try alt+enter? That should "force" autochange to trigger.

For EVR/CP/Sync, you can't open the context menu in the first place right?

Also notice that going fullscreen with D3D fullscreen mode does not really count as "going" fullscreen as far as autochange concern. I submited a ticket about this to MPC-HC tracker.

madshi said that eventually madVR will handle refresh rate itself, so we'll be waiting for that I think.

[B.F.]

Originally Posted by madshi

What graphics mode are you using (resolution, refresh rate, interlaced/progressive)? Are you using PowerStrip?

1920x1080 60Hz progressive.
Just drivers, no tweakers.

[dansrfe]

What are the differences among all the resizing algorithms in madVR? It has always been hard for me to figure out what will work best for my GPU/CPU and memory combination in terms of sharpness and speed/load of rendering. I have a C2D @ 2.66GHz, Win 7 x64, ATi Mobility Radeon HD 4570, 4GB RAM.

[namaiki]

dansrfe, what is the resolution of your screen, also how much GPU RAM?

What resizing algorithms work on your setup? What is your video source? (if relatively noisy or blocky source then use a softer resizer; if you have a blocky video, do not use lanczos)

[dansrfe]

1920 x 1080. 1GB GPU RAM. So far the default resizer of SoftCubic80 stutters on my setup a bit when in fullscreen mode. My video source are very clean DVD sources that I have ripped to mkv files. Usually I stay around 864 x 360 or somewhere around there based on the A/R of the DVD.

[namaiki]

default resizer?
stutter could be caused by a lot of things, not usually based on which resizing algorithm is selected.

[dansrfe]

The one selected by default when madVR is first installed. As for the causes of stutter, I really don't know. Haali Renderer or EVR-CP doesn't cause any stuttering for me though. I really want to get madVR to work as best as possible because all other renderers just have one shortcoming or another.

[namaiki]

but isn't default lanczos4, and softcubic100?

[pirlouy]

Seekbar and OSD are really great too. Perfect.