Media Player .NET (MPDN) - D3D HQ GPU Video Renderer [v2.49.0/v1.31.0 27 Dec 2018] - Page 116

Zachs · 28th May 2015, 00:51

@AnimeViewer
BTW, the dump file is located in %localappdata%\MediaPlayerDotNet.exe.dump
Can you check if you have such a file please?

Zachs · 28th May 2015, 00:53

Quote:

Originally Posted by Anime Viewer

I paused a scene where there are a couple of different shades of red, but I'm not seeing a difference between it being enabled/disabled.
Does the video have to be running in Full Screen Exclusive Mode for the improvement to happen?
How about settings? Any particular ones that might make it stand out more, or where other effects might make it less noticeable? (For example: with or without render scripts running, with or without debanding, with or without dithering, with any particular Presentation API (D3D 11, 10.1, 9Ex), with any particular color settings (ex: PC Range BT 601, 709 or 2020, Full or Limited Output, 8,10,or 16 bit bit depth, using any particular up/down scalers?

Run it without render scripts. Bright fully saturated red is the easiest to see the changes.
EDIT: This is assuming the proper colorimetric has been used. If the encoder lied about it then that's a separate issue.

Anime Viewer · 28th May 2015, 00:56

Quote:

Originally Posted by Zachs

@AnimeViewer
BTW, the dump file is located in %localappdata%\MediaPlayerDotNet.exe.dump
Can you check if you have such a file please?

Ah ha! I found it there. Here is the dump which I opened and copied from Notepad:

Code:

*** Thread 1 ***

Stack Trace:

Mpdn.VideoFrameServices.DxgiPresenter.DxgiPresentEx(IntPtr, Int32)
Mpdn.VideoFrameServices.DxgiPresenter.DxgiPresentEx(IntPtr, Int32)
DomainBoundILStubClass.IL_STUB_PInvoke(IntPtr, Int32)
Mpdn.D3D9VideoRenderer.FrameComposer.Dx11.FrameComposer.Present(Int64 ByRef)
Mpdn.D3D9VideoRenderer.VideoRenderer.PresentInternal(Int64 ByRef)
Mpdn.D3D9VideoRenderer.VideoRenderer.Present(Boolean, Boolean, SharpDX.Result ByRef, Int64 ByRef)
Mpdn.VideoPlayer.VideoPlayer.Present(Boolean, SharpDX.Result ByRef, Int64 ByRef)
Mpdn.VideoPlayer.VideoPlayer.WaitAndPresent(Int64, Int64, Boolean, Boolean, Int64 ByRef)
Mpdn.VideoPlayer.VideoPlayer.Present(Int64, Int64, Boolean, Int64 ByRef)
Mpdn.VideoPlayer.VideoPlayer.Present()
Mpdn.VideoPlayer.VideoPlayer.PresentSample(Mpdn.VideoPlayer.MediaSample)
Mpdn.VideoPlayer.VideoPlayer+<>c__DisplayClass2.<set_EnableFullScreen>b__0(Boolean)
Mpdn.VideoPlayer.VideoPlayer.SyncRendererInvoke(System.Action`1<Boolean>)
Mpdn.VideoPlayer.VideoPlayer.set_EnableFullScreen(Boolean)
MediaPlayerDotNet.MainForm.†††
††††()
MediaPlayerDotNet.MainForm.†††
††††›()
MediaPlayerDotNet.MainForm.†††
†††‡ˆŽ(System.Object, System.Windows.Forms.MouseEventArgs)
System.Windows.Forms.Control.WmMouseUp(System.Windows.Forms.Message ByRef, System.Windows.Forms.MouseButtons, Int32)
System.Windows.Forms.Control.WndProc(System.Windows.Forms.Message ByRef)
System.Windows.Forms.NativeWindow.Callback(IntPtr, Int32, IntPtr, IntPtr)
DomainBoundILStubClass.IL_STUB_ReversePInvoke(Int64, Int32, Int64, Int64)
System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG ByRef)
System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG ByRef)
DomainBoundILStubClass.IL_STUB_PInvoke(MSG ByRef)
System.Windows.Forms.Application+ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr, Int32, Int32)
System.Windows.Forms.Application+ThreadContext.RunMessageLoopInner(Int32, System.Windows.Forms.ApplicationContext)
System.Windows.Forms.Application+ThreadContext.RunMessageLoop(Int32, System.Windows.Forms.ApplicationContext)
†††
†††‡•š.†††
†††‡•™.†††
†††‹•(System.Object)
†††
†††‡•š.†††
†††‡•™.†††
†††‡•›(System.Object)
<PrivateImplementationDetails>{B078818A-34A0-41B9-9995-5CD01146F517}.Main(System.String[])



-------------------------------------------------------------------------------------------


*** Thread 2 ***

Stack Trace:




-------------------------------------------------------------------------------------------


*** Thread 4 ***

Stack Trace:

System.Threading.WaitHandle.WaitOneNative(System.Runtime.InteropServices.SafeHandle, UInt32, Boolean, Boolean)
System.Threading.WaitHandle.InternalWaitOne(System.Runtime.InteropServices.SafeHandle, Int64, Boolean, Boolean)
Mpdn.Threading.TaskThread.DoWork()
System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
System.Threading.ThreadHelper.ThreadStart()




-------------------------------------------------------------------------------------------


*** Thread 10 ***

Stack Trace:

System.Windows.Forms.UnsafeNativeMethods.WaitMessage()
System.Windows.Forms.UnsafeNativeMethods.WaitMessage()
System.Windows.Forms.Application+ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr, Int32, Int32)
System.Windows.Forms.Application+ThreadContext.RunMessageLoopInner(Int32, System.Windows.Forms.ApplicationContext)
System.Windows.Forms.Application+ThreadContext.RunMessageLoop(Int32, System.Windows.Forms.ApplicationContext)
System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
System.Threading.ThreadHelper.ThreadStart()




-------------------------------------------------------------------------------------------


*** Thread 13 ***

Stack Trace:

System.Threading.WaitHandle.WaitMultiple(System.Threading.WaitHandle[], Int32, Boolean, Boolean)
System.Threading.WaitHandle.WaitAny(System.Threading.WaitHandle[], Int32, Boolean)
Mpdn.VideoPlayer.DirectShowVideo.HandleEvents(Microsoft.Win32.SafeHandles.SafeWaitHandle, Microsoft.Win32.SafeHandles.SafeWaitHandle)
Mpdn.VideoPlayer.DirectShowVideo.HandleEvents(System.Object)
Mpdn.Threading.WorkerThread+<>c__DisplayClass6.<.ctor>b__4(System.Object)
System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
System.Threading.ThreadHelper.ThreadStart(System.Object)




-------------------------------------------------------------------------------------------


*** Thread 14 ***

Stack Trace:

System.Threading.WaitHandle.WaitMultiple(System.Threading.WaitHandle[], Int32, Boolean, Boolean)
System.Threading.WaitHandle.WaitAny(System.Threading.WaitHandle[], Int32, Boolean)
Mpdn.VideoPlayer.VideoPlayer.PresentLoop()
Mpdn.Threading.WorkerThread+<>c__DisplayClass2.<.ctor>b__0()
System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
System.Threading.ThreadHelper.ThreadStart()




-------------------------------------------------------------------------------------------


*** Thread 15 ***

Stack Trace:



System.Threading.Monitor.Enter(System.Object)
Mpdn.VideoPlayer.VideoPlayer.RenderLoop()
Mpdn.Threading.WorkerThread+<>c__DisplayClass2.<.ctor>b__0()
System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
System.Threading.ThreadHelper.ThreadStart()




-------------------------------------------------------------------------------------------


*** Thread 18 ***

Stack Trace:



System.Threading.Monitor.Enter(System.Object)
Mpdn.VideoPlayer.VideoPlayer.UpdateVideoFrame(Mpdn.VideoPlayer.MediaSample)
Mpdn.VideoPlayer.DirectShowVideo.Mpdn.VideoPlayer.ICallbackFilterCB.SampleCb(Int64, DirectShowLib.IMediaSample)
DomainBoundILStubClass.IL_STUB_COMtoCLR(Int64, IntPtr)



-------------------------------------------------------------------------------------------

ryrynz · 28th May 2015, 01:01

Quote:

Originally Posted by Anime Viewer

I paused a scene where there are a couple of different shades of red, but I'm not seeing a difference between it being enabled/disabled.

I've just done a number of comparisons on fairly red scenes and the changes are made on edges mostly. I've found the changes on either brownish or whiteish edges/areas, but yeah the changes are very subtle.. most of the time you actually won't notice them.

Zachs · 28th May 2015, 01:06

Quote:

Originally Posted by Anime Viewer

Ah ha! I found it there. Here is the dump which I opened and copied from Notepad:

Right. Just as I feared.
I'll continue this in PM with you since it looks like it's specific to your Optimus system only.

ryrynz · 28th May 2015, 01:29

Quote:

Originally Posted by ryrynz

but yeah the changes are very subtle.. most of the time you actually won't notice them.

This is the best example of the changes chroma reconstruction makes I've seen so far. The changes are certainly more noticeable with sharper resizers (lanczos, NNEDI3) These were taken using Lanzcos 16 tap AR.
The whites really do lighten up here, probably one of the best examples I could have hoped to find as all other changes have been relatively minor.

http://screenshotcomparison.com/comparison/128955

huhn · 28th May 2015, 01:38

so it tries to counter the tons of artifacts from lanczos 8/16?

Zachs · 28th May 2015, 01:45

No. It uses the information that would've otherwise been disposed off so it gives better quality.

huhn · 28th May 2015, 01:49

Quote:

Originally Posted by Zachs

No. It uses the information that would've otherwise been disposed off so it gives better quality.

why is lanczos 16 is needed than to show something off there must be better examples.

Zachs · 28th May 2015, 01:57

Lanczos 16 causes more values to go out of range after scaling so the effect is more profound.

Zachs · 28th May 2015, 02:07

Quote:

Originally Posted by Anime Viewer

As long as I set the Video Input Colormetric to one of the PC Ranges it looks fine, but if my system mis-detects the video, and sets it to one of the TV Ranges (while set to automatic) then I get the results I previously posted.

Righto! I found a bug in MPDN's automatic colorimetric detection logic! Specifically if the 720p clip doesn't have actual a height of 720 pixels, it assumes it's not HD!

This has been fixed in the next release.

Many thanks to ryrynz for discovering this.

huhn · 28th May 2015, 02:10

does it work with RGB sources or 4.4:4 source?

huhn · 28th May 2015, 02:22

here an extreme example:

http://screenshotcomparison.com/comparison/128957

i crippled a RGB source to 4:2:0 to make it work.

it turns some pixel totally black that shouldn't be black but i guess it gives an idea what it does.

Zachs · 28th May 2015, 02:23

Depending on how you're scaling your chroma. If you scale it to target size directly with something like lanczos 16 then it may have some effect. I suspect you won't be able to see any difference but I haven't tested this myself.

Zachs · 28th May 2015, 02:25

Quote:

Originally Posted by huhn

here an extreme example:

http://screenshotcomparison.com/comparison/128957

i crippled a RGB source to 4:2:0 to make it work.

it turns some pixel totally black that shouldn't be black but i guess it gives an idea what it does.

Is your RGB source closer to CR on or off?

EDIT: If you look closely at the disabled icons on the sidebar, you'll find CR on to do exactly what was intended to. There's no colour bleed at all and it shows a clear alternating pattern that I would image what the original looked like.

huhn · 28th May 2015, 02:28

Quote:

Originally Posted by Zachs

Is your RGB source closer to CR on or off?

yes and no.

the luma is closer the chroma is way off with CR on

EDIT: let me say it with other more correct words.

it removes chroma bleeding and under saturates chroma. most parts where chroma details shouldn't by they are not there anymore so the "luma" looks way more correct.

Zachs · 28th May 2015, 02:37

Well it's done its job then!
But can you post the RGB and crippled version of that clip somewhere so we could take a look at it to see if we could improve it?

ryrynz · 28th May 2015, 02:38

Hey Huhn can you link the 4:2:0 and the RGB source? I think that might be useful for tweaking chroma.

I guess ideally I'd really like to get my hands on a proper chroma test pattern to compare in that way to find accurate to the source chroma upscaler settings.

huhn · 28th May 2015, 02:43

here is the RGB version.

http://www.file-upload.net/download-...0-001.mkv.html

i forced lavfilter to NV12 output to get a 4:2:0 video of this so i don't have an encode of it.

but not sure if a normal video should be judge on a pixel art video like this.

Zachs · 28th May 2015, 02:45

The same principal applies to normal video - chroma bleed is never desirable.

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28th May 2015, 00:51	#2301 \| Link
Zachs Suptitle, MediaPlayer.NET Join Date: Nov 2001 Posts: 1,721	@AnimeViewer BTW, the dump file is located in %localappdata%\MediaPlayerDotNet.exe.dump Can you check if you have such a file please?

28th May 2015, 01:38	#2307 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 8,623	so it tries to counter the tons of artifacts from lanczos 8/16?

28th May 2015, 01:45	#2308 \| Link
Zachs Suptitle, MediaPlayer.NET Join Date: Nov 2001 Posts: 1,721	No. It uses the information that would've otherwise been disposed off so it gives better quality.

28th May 2015, 01:57	#2310 \| Link
Zachs Suptitle, MediaPlayer.NET Join Date: Nov 2001 Posts: 1,721	Lanczos 16 causes more values to go out of range after scaling so the effect is more profound.

28th May 2015, 02:10	#2312 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 8,623	does it work with RGB sources or 4.4:4 source?

28th May 2015, 02:22	#2313 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 8,623	here an extreme example: http://screenshotcomparison.com/comparison/128957 i crippled a RGB source to 4:2:0 to make it work. it turns some pixel totally black that shouldn't be black but i guess it gives an idea what it does.

28th May 2015, 02:23	#2314 \| Link
Zachs Suptitle, MediaPlayer.NET Join Date: Nov 2001 Posts: 1,721	Depending on how you're scaling your chroma. If you scale it to target size directly with something like lanczos 16 then it may have some effect. I suspect you won't be able to see any difference but I haven't tested this myself.

28th May 2015, 02:37	#2317 \| Link
Zachs Suptitle, MediaPlayer.NET Join Date: Nov 2001 Posts: 1,721	Well it's done its job then! But can you post the RGB and crippled version of that clip somewhere so we could take a look at it to see if we could improve it?

28th May 2015, 02:38	#2318 \| Link
ryrynz Registered User Join Date: Mar 2009 Posts: 3,697	Hey Huhn can you link the 4:2:0 and the RGB source? I think that might be useful for tweaking chroma. I guess ideally I'd really like to get my hands on a proper chroma test pattern to compare in that way to find accurate to the source chroma upscaler settings.

28th May 2015, 02:43	#2319 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 8,623	here is the RGB version. http://www.file-upload.net/download-...0-001.mkv.html i forced lavfilter to NV12 output to get a 4:2:0 video of this so i don't have an encode of it. but not sure if a normal video should be judge on a pixel art video like this.

28th May 2015, 02:45	#2320 \| Link
Zachs Suptitle, MediaPlayer.NET Join Date: Nov 2001 Posts: 1,721	The same principal applies to normal video - chroma bleed is never desirable.