Maybe a problem with KMP internal ASF Reader

[njmzhang]

When I watch WMV-HD videos, I use Preset:HighSpeed mode and KMP Internal ASF Reader as source filter.
However, I notice that there is a gap at the bottom of the picture(see the attachment).
I don't know how to state it clearly, but you can try the sample to see what's the problem.
The samples can be found at,
[Only registered and activated users can see links]
The one I am using is "Coral Reef Adventure (IMAX)" 1080p. Normal wmv videos do not have such problem.

The filter graph is,
0) - KMP ASF Reader
1) - WMVideo Decoder DMO
2) - WMAudio Decoder DMO
3) - OverlayMixer
4) - Video Renderer
5) - DirectSound Audio Renderer

I also tried other combinations,
KMP ASF Reader + KMP video decoder: no problem
System Default + WMVideo Deocder DMO: no problem

[z]

I don't know an exact reason but the bottom gap of the above screen is a typical phenomenon occurring when DxVA is enabled(It's not a bug of kmp). With KMP ASF reader, unlike normal WM ASF reader or else, it's possible to enable DxVA with WMV HD to some extent. Our users in korean forum reported it was possible to use DxVA with WMV HD up to 1440*xxxx resolution. Originally, there is no way of using DxVA in WMV HD otherwise than Windows Media Player.

PS. Currently, KMP ASF reader does not recognize a DAR informaton inside of WMV HD.

[njmzhang]

I see.
Yes, with KMP ASF reader, the CPU usage is far less than other ASF readers.



BTW. Just now, I found another issue with 0308 beta, you can not use Gabest Matroska Splitter for mkv files.

[z]

Are you sure? I've checked it but can't find any problem with gabest's mkv splitter.

[Primary Filtergraph]
0) - Gabest Matroska Source
1) - KMP Audio Codec
2) - CyberLink Audio Decoder
3) - KMP Video Codec
4) - KMP Video Transform
5) - KMP Audio Transform(Copy)
6) - DirectSound Audio Renderer
7) - Video Mixing Renderer9(Renderless)

[njmzhang]

Hi, I tried again and find that I cannot use the MatroskaSplitter.ax in the 0308 zip pack. The MD5 of this file is,
2695d47141b00cf2398fefcbc16f3501 *MatroskaSplitter.ax 438272 bytes

However I can use the one that is downloaded from [Only registered and activated users can see links]
32fe16591fc41bc20a71b0ca15654f47 *MatroskaSplitter.ax 372736 bytes

[z]

Can you give me a link or upload the sample? I'd like to check it.

You can check the mkv splitter by registering to system and trying to open the mkv file with other directshow player.

If the problem still persists with other players, it's a bug of gabest's mkv splitter itself.

[njmzhang]

Hey, I tried to register this filter into the system just now, but the registration failed! So this is not KMP's bug.
I have uploaded the filter, maybe you can have a try.

Thanks for your help.

[z]

Try to register it again referring to the following screenshot via system filter manager in kmplayer:

[njmzhang]

yes, I have already done that, but it still cannot be registered.
The attached picture is the information of two different version of MatroskaSplitter viewed by TotalCommander's fileinfo lister. You can see the above version has no "Active/OCX" tab.

[z]

But it's really a weird thing. Anyway, I can register it. -O-


D:\Program Files\The KMPlayer\MatroskaSplitter.ax
on Microsoft Windows XP Workstation version 5.2600

File Version Information :
Version language : 영어 (미국)
Comments : [Only registered and activated users can see links]
CompanyName : Gabest
FileDescription : Matroska Splitter
FileVersion : 1, 0, 2, 8
InternalName : Matroska Splitter
LegalCopyright : Copyright (C) 2003-2006 Gabest
OriginalFilename : MatroskaSplitter.ax
ProductName : Matroska Splitter
ProductVersion : 1, 0, 2, 8
Creation Date : 2005/07/02 12:25:38
Last Modif. Date : 2006/03/08 22:39:06
Last Access Date : 2006/03/10 21:14:11
FileSize : 438272 bytes ( 428.000 KB, 0.418 MB )
FileVersionInfoSize : 1684 bytes
File type : Static Link Library (0x7)
Target OS : Win32 (0x4)
File/Product version : 1.0.2.8 / 1.0.2.8
Language : 영어 (미국) (0x409)
Character Set : 1200 (ANSI - Unicode (BMP of ISO 10646)) (0x4B0)

[njmzhang]

yeah, really weird.
So now I fall back on the 1.0.2.7 version. Anyway, thanks for your help.