DiAVC decoder, yet another fast H.264 high profile decoder - Page 61

Stephen R. Savage · 5th January 2011, 20:29

@prokhozhijj: If Avisynth MT works with DSS2 but not DGSource, the problem is that Graft's code is not thread-safe. Fixing it would require code modifications to DGSource. One workaround you could try if you have sufficient memory would be splitting your script into four parts with the Trim() function and starting a new encoder process for each part.

prokhozhijj · 5th January 2011, 20:48

Quote:

Originally Posted by Stephen R. Savage

One workaround you could try if you have sufficient memory would be splitting your script into four parts with the Trim() function and starting a new encoder process for each part.

Thank you. It looks like this is only solution.

Is there any way how to force to use multithreading in trial version of DiAVC? Neuron2 said that it is possible to turn on multithreading in DiAVC decoder. But I have no idea how to do it for trial version. May be some settings in registry?

Stephen R. Savage · 6th January 2011, 00:02

DiAVC is internally multi-threaded, but that has nothing to do with Avisynth MT, which creates multiple instances of filters (DGSource). There is a registry key that sets all DiAVC options, but it is encoded with some kind of bitmask, so it may be difficult to change the thread count by itself. However, the default behavior is to open 1.5 decoder threads per CPU (I think), and you do not need to change it. Your problem is with DGSource and its incompatibility with Avisynth MT. Besides, in the script that you posted, the vast majority of CPU time is spent in MVTools.

P.S. By all reports, calling SetMTMode(5) before DGSource is supposed to fix compatibility issues. Have you tried it?

prokhozhijj · 6th January 2011, 10:26

Quote:

Originally Posted by Stephen R. Savage

P.S. By all reports, calling SetMTMode(5) before DGSource is supposed to fix compatibility issues. Have you tried it?

Of course I've tried. Just look on my previous post. It crashes. Even with new version that Donald just made.

WILLIS · 15th February 2011, 18:29

are their any alternative gui interfaces that work alongside di-avc other than dg's decoder? does di-avc come with a native gui?

LoRd_MuldeR · 15th February 2011, 20:28

Quote:

Originally Posted by WILLIS

are their any alternative gui interfaces that work alongside di-avc other than dg's decoder? does di-avc come with a native gui?

What kind of GUI do you need? DiAVC is implemented as a DirectShow Filter. It can (should) work with any DirectShow-based Player software you like, for example MPC-HC.

The purpose of DGAVCDecDI is making the DiAVC decoder available as a source filter in Avisynth - through it's native interface, rather than the DirectShow interface.

I'm not aware of any other software that is built on top of DiAVC's native interface. However there is an SDK available on the DiAVC web-site, so everybody could create such software.

But it has to be noted that for any DiAVC-based software each user would need to obtain a license of DiAVC first, as is the case with DGAVCDecDI...

GREG1292 · 24th February 2011, 22:22

Sounds stupid but what does this codec in real world terms
gain me over CoreAvc when using frame doubling script,madvr.

How much will this lesson my cpu load. Don't know all the questions to ask but am just curious before I try it out so
I know what to expect?

Thanks Greg

schweinsz · 25th February 2011, 09:04

Quote:

Originally Posted by GREG1292

Sounds stupid but what does this codec in real world terms
gain me over CoreAvc when using frame doubling script,madvr.

How much will this lesson my cpu load. Don't know all the questions to ask but am just curious before I try it out so
I know what to expect?

Thanks Greg

The gain depends on your CPU. You can refer to my comparison.
When the CPU is Core 2 Duo, the gain is about 20%.
If the CPU is old, the gain is small.

GREG1292 · 25th February 2011, 21:33

Quote:

Originally Posted by schweinsz

The gain depends on your CPU. You can refer to my comparison.
When the CPU is Core 2 Duo, the gain is about 20%.
If the CPU is old, the gain is small.

I use an amd 1055t hex core which is newer and with
CoreAvc and frame doubling on my preferred script 88% cpu usuage. Trying
to figure if it will save me enough headroom on my
cpu or buy a i7

Episodio1 · 26th February 2011, 03:42

GREG, you can download trial version and check for yourself.

lych_necross · 26th February 2011, 04:00

Quote:

Originally Posted by GREG1292

I use an amd 1055t hex core which is newer and with
CoreAvc and frame doubling on my preferred script 88% cpu usuage. Trying
to figure if it will save me enough headroom on my
cpu or buy a i7

Cpu usage is not an accurate measure of performance. Try comparing the number of frames decoded per second between coreavc and diavc for an accurate measure of performance.

schweinsz · 26th February 2011, 09:46

Quote:

Originally Posted by GREG1292

I use an amd 1055t hex core which is newer and with
CoreAvc and frame doubling on my preferred script 88% cpu usuage. Trying
to figure if it will save me enough headroom on my
cpu or buy a i7

You can download the DiAVC trial version, and register it by running "regsvr32.exe diavc.ax", then you can use it.

yesgrey · 26th February 2011, 18:28

the trial version is numbered 1.2.3 but the regular version is numbered 1.2.2. Is the trial newer? What has changed?

schweinsz · 27th February 2011, 09:21

Quote:

Originally Posted by yesgrey

the trial version is numbered 1.2.3 but the regular version is numbered 1.2.2. Is the trial newer? What has changed?

I added a small feature named "low delay". If you playback video generally on local machine, don't choose it.

Forfront · 28th February 2011, 17:52

Quote:

Originally Posted by GREG1292

I use an amd 1055t hex core which is newer and with
CoreAvc and frame doubling on my preferred script 88% cpu usuage. Trying
to figure if it will save me enough headroom on my
cpu or buy a i7

GREG1292 ~ I have seen ur name before on the "frame doubling" thread on avsforum, do u still have a GTX 460??

mariner · 1st March 2011, 11:23

MBAFF Interlaced video

Greetings schweinsz.

DiAVC seems to have problems dealing with MBAFF interlaced video such as this Beyonce clip.

http://forum.doom9.org/showpost.php?...71&postcount=3

schweinsz · 1st March 2011, 19:24

Quote:

Originally Posted by mariner

MBAFF Interlaced video

Greetings schweinsz.

DiAVC seems to have problems dealing with MBAFF interlaced video such as this Beyonce clip.

http://forum.doom9.org/showpost.php?...71&postcount=3

What did you see? I play it and find the DiAVC deal with it fine.

mariner · 1st March 2011, 20:17

It plays with no de-interlacing at 29.97 fps, like weave.

Stephen R. Savage · 1st March 2011, 22:15

@GREG1292: CoreAVC will probably have lower total CPU usage due to PureVideo.

@mariner: DiAVC does no deinterlacing on its own. In an earlier post, schweinsz mentioned that it just sets DEINTERLACE_BOB for handling downstream.

mariner · 3rd March 2011, 12:08

Quote:

Originally Posted by Stephen R. Savage

@mariner: DiAVC does no deinterlacing on its own. In an earlier post, schweinsz mentioned that it just sets DEINTERLACE_BOB for handling downstream.

Thanks for the reply, Stephen.

What do you think caused the problem?

6th January 2011, 00:02	#1203 \| Link
Stephen R. Savage Registered User Join Date: Nov 2009 Posts: 327	DiAVC is internally multi-threaded, but that has nothing to do with Avisynth MT, which creates multiple instances of filters (DGSource). There is a registry key that sets all DiAVC options, but it is encoded with some kind of bitmask, so it may be difficult to change the thread count by itself. However, the default behavior is to open 1.5 decoder threads per CPU (I think), and you do not need to change it. Your problem is with DGSource and its incompatibility with Avisynth MT. Besides, in the script that you posted, the vast majority of CPU time is spent in MVTools. P.S. By all reports, calling SetMTMode(5) before DGSource is supposed to fix compatibility issues. Have you tried it? Last edited by Stephen R. Savage; 6th January 2011 at 00:05.

5th January 2011, 20:29	#1201 \| Link
Stephen R. Savage Registered User Join Date: Nov 2009 Posts: 327	@prokhozhijj: If Avisynth MT works with DSS2 but not DGSource, the problem is that Graft's code is not thread-safe. Fixing it would require code modifications to DGSource. One workaround you could try if you have sufficient memory would be splitting your script into four parts with the Trim() function and starting a new encoder process for each part.

15th February 2011, 18:29	#1205 \| Link
WILLIS Registered User Join Date: Dec 2009 Posts: 24	are their any alternative gui interfaces that work alongside di-avc other than dg's decoder? does di-avc come with a native gui?

24th February 2011, 22:22	#1207 \| Link
GREG1292 Registered User Join Date: Aug 2007 Location: Fort Wayn,Indiana Posts: 52	Sounds stupid but what does this codec in real world terms gain me over CoreAvc when using frame doubling script,madvr. How much will this lesson my cpu load. Don't know all the questions to ask but am just curious before I try it out so I know what to expect? Thanks Greg

26th February 2011, 03:42	#1210 \| Link
Episodio1 Registered User Join Date: Feb 2002 Location: Spain Posts: 198	GREG, you can download trial version and check for yourself.

26th February 2011, 18:28	#1213 \| Link
yesgrey Registered User Join Date: Sep 2004 Posts: 1,295	the trial version is numbered 1.2.3 but the regular version is numbered 1.2.2. Is the trial newer? What has changed?

1st March 2011, 11:23	#1216 \| Link
mariner Registered User Join Date: Nov 2005 Posts: 583	MBAFF Interlaced video Greetings schweinsz. DiAVC seems to have problems dealing with MBAFF interlaced video such as this Beyonce clip. http://forum.doom9.org/showpost.php?...71&postcount=3

1st March 2011, 20:17	#1218 \| Link
mariner Registered User Join Date: Nov 2005 Posts: 583	It plays with no de-interlacing at 29.97 fps, like weave.

1st March 2011, 22:15	#1219 \| Link
Stephen R. Savage Registered User Join Date: Nov 2009 Posts: 327	@GREG1292: CoreAVC will probably have lower total CPU usage due to PureVideo. @mariner: DiAVC does no deinterlacing on its own. In an earlier post, schweinsz mentioned that it just sets DEINTERLACE_BOB for handling downstream.