Media Player Classic Home Cinema (MPC-HC) - DXVA! - Page 753

namaiki · 18th October 2010, 10:25

Quote:

Originally Posted by LigH

As far as I remember, Bilinear should be preferred for downscaling.

I found (checking text in the video) that lanczos kept the text more readable.

Quote:

Originally Posted by LigH

Bicubic filters are often more convenient for upscaling, but the sharpness is a matter of personal taste, and sharper variants (larger absolute value for A) may cause ringing artefacts

Also, I also found that there was blocking, but nothing as bad as like with lanczos.

LigH · 18th October 2010, 16:05

@ namaiki:

We are not talking about AviSynth offline resizers, but about MPC-HC realtime resizers for Pixel Shader 2.0?

Version 1.4.2667 did not have Lanczos implemented, I believe.

namaiki · 18th October 2010, 16:11

madVR does spline and lanczos resizing during playback.

MPC-HC by itself only does bilinear and bicubic; and if you will count it, whatever EVR uses and whatever your GPU will use in Overlay Mixer.
I'm actually a bit curious as to what scaling algorithm my GeForce 9600M GT uses. I'm quite sure it's not bilinear.

edit: though I do get what you mean since this is the MPC-HC thread.

aiyunyi · 18th October 2010, 17:43

Has MPEG2 VLD Decoder utilized the hardware accelerated deinterlacing processor in PureVideo?

I found feathering artifacts in 1080i video.

aiyunyi · 18th October 2010, 17:45

Quote:

Originally Posted by aiyunyi

Has MPEG2 VLD Decoder utilized the hardware accelerated deinterlacing processor in PureVideo?

I found feathering artifacts in 1080i video.

And also which is the standalone directshow filters?

clsid · 18th October 2010, 21:15

Fix/workaround for the DScaler5 crash:

Code:

Index: src/apps/mplayerc/mplayerc.vcproj
===================================================================
--- src/apps/mplayerc/mplayerc.vcproj    (revision 2689)
+++ src/apps/mplayerc/mplayerc.vcproj    (working copy)
@@ -79,7 +79,7 @@
                 SubSystem="2"
                 LargeAddressAware="2"
                 RandomizedBaseAddress="2"
-                DataExecutionPrevention="2"
+                DataExecutionPrevention="0"
                 SupportUnloadOfDelayLoadedDLL="true"
                 TargetMachine="1"
             />

Guns N' Roses · 19th October 2010, 06:02

I wanted to seek help with proper 24Hz playback. I have Samsung LA40A650 (PAL version of LN40A650), which supports 1080p24.
However, if I set the refresh rate to 23Hz in ATI CCC, and try to watch videos on my HDTV using MPC-HC with EVR CP and DXVA, they stutter/judder incessantly. There is no other refresh rate other than 60Hz that works without issues. I've tried reinstalling ATI drivers and MPC-HC, but nothing worked. This also happens with software decoding (CoreAVC). My config is i7 920, ATI 5870, Windows 7 x64.

But if I use madVR in full screen exclusive, I am able to get smooth playback. So I wonder why EVR CP behaves the way it does?

namaiki · 19th October 2010, 06:36

Is that with one screen, or two at the same time?

Try disable Aero.

tetsuo55 · 19th October 2010, 09:22

Quote:

Originally Posted by clsid

Fix/workaround for the DScaler5 crash:

Code:

Index: src/apps/mplayerc/mplayerc.vcproj
===================================================================
--- src/apps/mplayerc/mplayerc.vcproj    (revision 2689)
+++ src/apps/mplayerc/mplayerc.vcproj    (working copy)
@@ -79,7 +79,7 @@
                 SubSystem="2"
                 LargeAddressAware="2"
                 RandomizedBaseAddress="2"
-                DataExecutionPrevention="2"
+                DataExecutionPrevention="0"
                 SupportUnloadOfDelayLoadedDLL="true"
                 TargetMachine="1"
             />

Thats a dangerous workaround.
The problem is probably in dscaler, and maybe in the mpc-hc filter menu handling.

DEP means a value is being written to read only memory(or a similar buffer overflow type attack is accidently occuring), this could result in a system crash if not blocked.

EDIT: chances are high this workaround will reintroduce many of the other older crashes.

GTPVHD · 19th October 2010, 10:16

Yes, do not accept patches or workarounds that turn off the security features like DEP or ASLR. This should be fixed on Dscaler5's side, not MPC-HC. Recently MPC-HC's Heap Corruption Detection exposed bugs in another external Dshow filter which was crashing and it was fixed in that filter's code.

clsid · 19th October 2010, 15:35

Well, are there any volunteers to fix DScaler5 (or MPC-HC)? It's pretty much an abandoned project. Its source code can be found on SourceForge.

v0lt · 19th October 2010, 16:26

MPC-HC can play "AMR Audio file"? None of the examples (from here) are not playing.

clsid · 19th October 2010, 16:41

With the proper filters installed it should be able to play them.
http://blog.monogram.sk/janos/2008/0...amr-pack-1010/

robpdotcom · 19th October 2010, 17:26

Regarding DSacaler; not sure if it matters, but.....

It does not cause MPC to crash on XP, and it also does not cause Zoom Player to crash on Win7. For me at least, it's only MPC on Win7.

EDIT: I can also open it's settings through GraphStudio on Win7.

v0lt · 19th October 2010, 17:33

@clsid
thanks! it works!

MPC-HC does not have AMR splitter?

BelowSky · 19th October 2010, 18:28

@v0lt:
It is unfortunate that MPC-HC can play AMR audio if it was inside 3GP or MP4 video files and yet it can't play stand alone ".AMR" audio files.

Guns N' Roses · 19th October 2010, 18:34

Quote:

Originally Posted by namaiki

Is that with one screen, or two at the same time?

Try disable Aero.

Disabling Aero and using VSync + Alternate VSync solves the problem, 24Hz works wonderfully. But...why is Aero causing such problems? Isn't it supposed to work better with Aero on? People have been able to make it work with Aero.

Razoola · 19th October 2010, 20:30

Quote:

Originally Posted by Guns N' Roses

Disabling Aero and using VSync + Alternate VSync solves the problem, 24Hz works wonderfully. But...why is Aero causing such problems? Isn't it supposed to work better with Aero on? People have been able to make it work with Aero.

Aero (by that I mean desktop composition) has been discussed many times before... As a rule of thumb Aero should be enabled on single monitor display systems only. If your using a secondary monitor Aero *MUST* be disabled if refresh rates on each active display is not a direct multiple of each other.

Guns N' Roses · 19th October 2010, 20:56

Quote:

Originally Posted by Razoola

Aero (by that I mean desktop composition) has been discussed many times before... As a rule of thumb Aero should be enabled on single monitor display systems only. If your using a secondary monitor Aero *MUST* be disabled if refresh rates on each active display is not a direct multiple of each other.

Could you give me direct links to this discussion?
Thats a very important point I did not find anywhere else before. But why is there such a major problem, and will it be corrected?

Razoola · 19th October 2010, 21:03

Quote:

Originally Posted by Guns N' Roses

Could you give me direct links to this discussion?
Thats a very important point I did not find anywhere else before. But why is there such a major problem, and will it be corrected?

http://forum.doom9.org/showthread.php?t=152415

Basically this is a windows/aero issue and and not a player issue.

18th October 2010, 16:05	#15042 \| Link
LigH German doom9/Gleitz SuMo Join Date: Oct 2001 Location: Germany, rural Altmark Posts: 6,782	@ namaiki: We are not talking about AviSynth offline resizers, but about MPC-HC realtime resizers for Pixel Shader 2.0? Version 1.4.2667 did not have Lanczos implemented, I believe. __________________ New German Gleitz board MediaFire: x264 \| x265 \| VPx \| AOM \| Xvid

18th October 2010, 16:11	#15043 \| Link
namaiki Registered User Join Date: Sep 2009 Location: Sydney, Australia Posts: 1,073	madVR does spline and lanczos resizing during playback. MPC-HC by itself only does bilinear and bicubic; and if you will count it, whatever EVR uses and whatever your GPU will use in Overlay Mixer. I'm actually a bit curious as to what scaling algorithm my GeForce 9600M GT uses. I'm quite sure it's not bilinear. edit: though I do get what you mean since this is the MPC-HC thread. Last edited by namaiki; 18th October 2010 at 16:51.

19th October 2010, 10:16	#15050 \| Link
GTPVHD Registered User Join Date: Mar 2008 Posts: 175	Yes, do not accept patches or workarounds that turn off the security features like DEP or ASLR. This should be fixed on Dscaler5's side, not MPC-HC. Recently MPC-HC's Heap Corruption Detection exposed bugs in another external Dshow filter which was crashing and it was fixed in that filter's code. Last edited by GTPVHD; 19th October 2010 at 10:19.

19th October 2010, 15:35	#15051 \| Link
clsid ***** Join Date: Feb 2005 Posts: 5,647	Well, are there any volunteers to fix DScaler5 (or MPC-HC)? It's pretty much an abandoned project. Its source code can be found on SourceForge. __________________ MPC-HC 2.2.1

19th October 2010, 16:41	#15053 \| Link
clsid ***** Join Date: Feb 2005 Posts: 5,647	With the proper filters installed it should be able to play them. http://blog.monogram.sk/janos/2008/0...amr-pack-1010/ __________________ MPC-HC 2.2.1

18th October 2010, 17:43	#15044 \| Link
aiyunyi Registered User Join Date: May 2006 Location: China Posts: 38	Has MPEG2 VLD Decoder utilized the hardware accelerated deinterlacing processor in PureVideo? I found feathering artifacts in 1080i video.

19th October 2010, 06:02	#15047 \| Link
Guns N' Roses Registered User Join Date: Oct 2010 Posts: 9	I wanted to seek help with proper 24Hz playback. I have Samsung LA40A650 (PAL version of LN40A650), which supports 1080p24. However, if I set the refresh rate to 23Hz in ATI CCC, and try to watch videos on my HDTV using MPC-HC with EVR CP and DXVA, they stutter/judder incessantly. There is no other refresh rate other than 60Hz that works without issues. I've tried reinstalling ATI drivers and MPC-HC, but nothing worked. This also happens with software decoding (CoreAVC). My config is i7 920, ATI 5870, Windows 7 x64. But if I use madVR in full screen exclusive, I am able to get smooth playback. So I wonder why EVR CP behaves the way it does?

19th October 2010, 06:36	#15048 \| Link
namaiki Registered User Join Date: Sep 2009 Location: Sydney, Australia Posts: 1,073	Is that with one screen, or two at the same time? Try disable Aero.

19th October 2010, 16:26	#15052 \| Link
v0lt Registered User Join Date: Dec 2008 Posts: 1,968	MPC-HC can play "AMR Audio file"? None of the examples (from here) are not playing.

19th October 2010, 17:26	#15054 \| Link
robpdotcom Registered User Join Date: Jan 2010 Posts: 297	Regarding DSacaler; not sure if it matters, but..... It does not cause MPC to crash on XP, and it also does not cause Zoom Player to crash on Win7. For me at least, it's only MPC on Win7. EDIT: I can also open it's settings through GraphStudio on Win7. __________________ Windows 7 x64 i7 870 16GB RAM AMD 6870

19th October 2010, 17:33	#15055 \| Link
v0lt Registered User Join Date: Dec 2008 Posts: 1,968	@clsid thanks! it works! MPC-HC does not have AMR splitter?

19th October 2010, 18:28	#15056 \| Link
BelowSky Registered User Join Date: Sep 2009 Posts: 36	@v0lt: It is unfortunate that MPC-HC can play AMR audio if it was inside 3GP or MP4 video files and yet it can't play stand alone ".AMR" audio files.

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