HOW TO: Intervideo Decoder Registry Patch for GBPVR

[csy]

This is a Intervideo decoder registry patch specific to GBPVR only, covering the decoders provided by WinDVD, codec packs, and Hauppauge Intervideo decoder version 4 (and assumed to work on Hauppauge Intervideo decoder versions 3 and 5)

By default, the Intervideo decoders have not enabled hardware acceleration, VMR, hardware de-interlacing, or DD/DTS 5.1.

Summary:
The principle aim of the registry settings below is to enable hardware de-interlacing to provide the best picture quality available on your system (quality is video card dependant), and enable DD/DTS 5.1 software decoding (if supported by your decoder product type). In more detail, this registry patch enables and maximises the hardware acceleration, enables VMR7/9 capability, enables hardware de-interlacing capability, and enables DD/DTS 5.1 software decoding.
Copy and paste the below code into notepad and save with a given filename, then change filename extension to .reg and double-click on file and you should be prompted to add the patch to the registry.

Caution: this should only be applied if your video card supports DXVA and VMR

Code:

REGEDIT4

[HKEY_CURRENT_USER\Software\InterVideo\Common\VIDEODEC\GBPVR]
"BOBWEAVE"=dword:00000000
"DXVA"=dword:00000001
"HWMC"=dword:00000001
"NVMCP"=dword:00000001
"VMR"=dword:00000002
"HwColor"=dword:00000001

[HKEY_CURRENT_USER\Software\InterVideo\Common\AUDIODEC\GBPVR]
"AUDIO"=dword:00000005
"AUDIOCHAN"=dword:00000004

Options:
Old ivivideo.ax version 5 (and 6 ?) had the following dword added in both the video and audio registry keys to improve timing: "DsContinuousRate"=dword:00000001
Hardware Acceleration enabled: "DXVA"=dword:00000001
Hardware Acceleration enabled: "DXVA"=dword:00000000
VMR7/9 enabled: "VMR"=dword:00000002
VMR disabled: "VMR"=dword:00000000
Auto de-interlacing (default): "BOBWEAVE"=dword:00000000
Bob de-interlacing: "BOBWEAVE"=dword:00000001
Weave (no) de-interlacing: "BOBWEAVE"=dword:00000002
Analogue stereo (default): "AUDIO"=dword:00000001 "AUDIOCHAN"=dword:00000001
Analogue 4 channel output: "AUDIO"=dword:00000004 "AUDIOCHAN"=dword:00000003
Analogue 6 (5.1) channel output: "AUDIO"=dword:00000005 "AUDIOCHAN"=dword:00000004
SPDIF pass-through: "AUDIO"=dword:00000006 "AUDIOCHAN"=dword:00000007


Notes:
1. This registry patch works on WinDVD-7 2005 using ivivideo.ax versions up to and including 7.0.27.130, however later versions cause GBPVR have blank screen when exiting playback.
2. WinDVD OEM/bundle version has audio crippled to stereo only
3. WinDVD trial version has audio crippled to stereo only, and decoders will not function after expiry.
4. Codec packs often contain fully-capable decoders that don't expire (eg Cole2K 6.0.3 Std), but noting some packs may not have legal right to redistribute these codecs.
5. The video and audio GBPVR sub-keys are separate and you can apply each sub-key independantly.
6. Hardware de-interlacing provides the best picture quality available on your system (quality is video card dependant), but is dependant on DXVA and VMR-rendering to achieve this, therefore GBPVR needs to be configured to use a VMR renderer (VMR9, VMR9-custom, VMR7) for this to work.
7. VMR is CPU intensive, therefore recommend 2GHz CPU or faster to ensure smooth playback on VMR
8. The video decoder always sets “use accurate aspect ratio” flag towards renderer. GBPVR (v0.97.13) VMR9 and VMR7 renderers observes the flag and applies this aspect ratio correction inside the GBPVR aspect ratio rectangle (VMR9-custom does not). This can accidentally cause double aspect ratio correction to VMR9 and VMR7 renderer if GBPVR is also applying an “F7” aspect ratio (particularly if using GBPVR ‘auto’ aspect ratio during LiveTV-timeshift or video playback)
9. No audio dynamic range adjustment available
10. Cannot re-direct LFE (subwoofer) channel to front speakers
11. SPDIF pass-through will transparently forward the AC3 signal within Directshow to the soundcard for processing. If the soundcard has inbuilt hardware DD/DTS decoder, then you can configure the soundcard driver to decode the DD/DTS or alternatively also transparently forward the AC3 signal to an external SPDIF interface on the soundcard. Note you should not have the DVD player external SPDIF cable connected otherwise you will end-up with dual AC3 signals presented to the soundcard when playing DVD’s in the drive. Note also that the Intervideo audio decoder is intelligent enough to know to automatically fall-back to software decoding when an AC3 signal is not present, eg MPEG2 video playback.
12. This registry patch can be adapted to work with other Directshow applications be replacing the ‘GBPVR’ tail-end of the key with the valid registry name of the alternative application.
13. You can uninstall this patch by launching Regedit (at command prompt type regedit), navigate the tree structure to the 'GBPVR' sub-key within the decoder branch, and right-click on the 'GBPVR' sub-key and select delete.

[jksmurf]

as one word with no spaces (the forum server keeps adding a space)

csy, just a couple of observations on the notes (into which it would seem you have put a lot of effort, thanks!)

1. A recent discussion resulted in the conclusion that if you wrap code (# button in forum) around these listings, you won't get those (unwanted) added spaces.

2. Another thought, just for simplicity, you might want to consider changing "Copy and paste the following lines..." to "in between the "====" lines" or something like that, for folks that are not familiar with which lines should or should not be copied and pasted.

3. If a person added these lines and their particular Video Card did NOT have some of these capabilities, will this result in an error or are the enabled properties simply ignored without errors?

4. Just out of curiosity, does anyone know what the copyright issues are surrounding codecs in general? e.g. the Cole2K codec pack contains a plethora of codecs (including Cyberlink and Intervideo) and is listed as "freeware". But those companies (Cyberlink and Intervideo) make software surrounding those codecs, which they sell. How does this actually work, are the codec packs not really free or do they licence the filters and codecs? And if you install programs like Trial versions of PowerDVD or WinDVD creator e.g. and let the Trial expire or strip out the codecs and filters and register them separately, is that a copyright violation? [EDIT] Refer http://msmvps.com/blogs/chrisl/archive/2.../9546.aspx. [/EDIT]

(Awesome stuff on the reg settings, btw).

k.

[sub]

4. Just out of curiosity, does anyone know what the copyright issues are surrounding codecs in general? e.g. the Cole2K codec pack contains a plethora of codecs (including Cyberlink and Intervideo) and is listed as "freeware". But those companies (Cyberlink and Intervideo) make software surrounding those codecs, which they sell. How does this actually work, are the codec packs not really free or do they licence the filters and codecs? And if you install programs like Trial versions of PowerDVD or WinDVD creator e.g. and let the Trial expire or strip out the codecs and filters and register them separately, is that a copyright violation?

These codec packs are illegally including them.

[csy]

csy, just a couple of observations on the notes (into which it would seem you have put a lot of effort, thanks!)

1. A recent discussion resulted in the conclusion that if you wrap code (# button in forum) around these listings, you won't get those (unwanted) added spaces.

2. Another thought, just for simplicity, you might want to consider changing "Copy and paste the following lines..." to "in between the "====" lines" or something like that, for folks that are not familiar with which lines should or should not be copied and pasted.

Thanks, I'll edit the posts when I have a spare moment.

3. If a person added these lines and their particular Video Card did NOT have some of these capabilities, will this result in an error or are the enabled properties simply ignored without errors?

I'm unsure so I'll add a caution note at the top of the posts - thanks.

[csy]

And if you install programs like Trial versions of PowerDVD or WinDVD creator e.g. and let the Trial expire or strip out the codecs and filters and register them separately, is that a copyright violation?

The codec filters do stop functioning after the trial period, even if you strip them out.

The codec packs contain filters that don't expire (noting they are illegal).

[nitrogen_widget]

Isn't hardware enabled by going to media player & choosing hardware acceleration?
Or is this just directx acceleration & the decoder is a seperate acceleration?

I'm confused.

[csy]

Each application has its own individual sub-key under VIDEODEC and AUDIODEC, and therefore its own dword values. In some instances these sub-keys are implicit and may not be defined in the registry if using default values.

[Chris.Day]

The codec packs contain filters that don't expire (noting they are illegal).

And they can also install a load of crap on your system, screwing up DirectShow for various applications.

[csy]

Thaks for the timely advise Chris.Day

Yes, a whole lot of filters will be installed if you allow an uncontrolled install, that's why with the Cole2K pack I recommended 'expert installation' option which give you control over which filters are installed.

And it is not the filters themselves that screw-up you system. The problem is thier Directshow 'merit' value can potentially change the default priority order of which filter is chosen first. This is principally only an issue if your directshow application is using the 'default' filters. Within GBPVR it is normal practice to manually define which filters (decoders) to use.

I recommend that only the bare minimum of required filters are installed on your system for simplicity, reliability, and ease of troubleshooting.

[jksmurf]

I installed all 3 of these registry patches yesterday, and while GBPVR playback video quality is just great, when I play a .mov file (the Toyota ad, with the Bulls going "Cows", they love it) that I have played for the kids using Mplayer Classic every day for the last week (so I have a good feeling for what it should look like), the video seems to have become significantly worse.

How can I troubleshoot this? I had a look inside Mplayer options but when it gave me a list of filters I got techno-phobia.

k.