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DGDecNV is a free decoder/frameserver for AVC, HEVC, MPEG2, and VC1 streams that runs on the GPU of Nvidia graphics cards that support CUDA video decoding. That means the card must have a VP2 or greater engine. VP1 is not supported! You can check which engine your card has here.

Freeware $15
OS: Win
File size: 4MB
Old versions
Version history
9.5/10
7 votes
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Screenshots

DGDecNV screenshot
Latest version

2053 build 246 (November 25, 2022)



Download


Visit developer's site

Download DGDecNV 2053 build 246  4MB  Win




Download old versions


Download DGDecNV old versions



Software License

Freeware (Free download and usage!)



Supported operating systems

WinWindows




Version history / Release notes / Changelog / What's New


DDDecNV latest builds

See https://rationalqm.us/board/viewtopic.php?f=5&t=463&start=350

DGDecNV 2053
------------

1. You should install a recent nVidia video driver available for your hardware
to ensure proper operation.

2. Build 2053 no longer supports compute architecture 1.1, 1.2, and 1.3.

3. Activation of a screensaver or standby mode may interfere with
proper operation of the DGNV tools. They should be disabled during
use of the DGNV tools.

4. Proper support on laptops depends on the laptop manufacturer correctly
implementing Optimus switching and other OEM-driver-related requirements.
In some cases this support is not properly implemented by the laptop
manufacturer. For these reasons, I do not provide support for laptops.
DGDecNV may or may not work on any given laptop.

5. Use with Windows Remote Desktop is not supported. Use an alternative such as
TightVNC, etc.

6. While DGDecNV can open VOBs it does not include any code to parse IFO
files and therefore any preprocessing needed to parse multiangles, etc.,
must be done at ripping time using the capabilities of your ripping tool.

7. 4:2:2/4:4:4 chroma formats and AVC/HEVC lossless are not supported.

8. Limitations for HEVC support:

* HEVC requires an nVidia device that supports HEVC, such as the
GTX 750/950/1050 and beyond. If your device does not support HEVC and you attempt
to open an HEVC stream, a popup error message will appear. If you want to
decode HEVC on a card that supports only hybrid decoding, such as the
750/970 etc., you must enable D3D mode and DXVA mode in your INI file.
Cards that support full HW HEVC decode do not require these settings.
GTX 1050 and better is highly recommended.

* Frame/field repeats for HEVC are not yet implemented. If you have an HEVC
stream with repeat flags, please contact me.

9. Avisynth 2.6 or Avisynth+ are required.

10. If you have Windows 10 and invoke other Avisynth filters
that use the GPU together with DGDecodeNV, such as KNLMeansCL and SVP,
things will work only in a fully 64-bit environment, including DGDecNV,
Avisynth, and all other plugins. This limitation is believed to be due
to nVidia driver deficiencies in Windows 10.

11. The DGSource() source filter supports multiple instantiation, however, the number of
instantiations is limited by available memory on the nVidia video card. As always,
more is better!

(C) Copyright 2009-2021, Donald A. Graft, All Rights Reserved


View full changelog




Sections/Browse similar tools






Alternative to DGDecNV


DGAVCDec



DGMPGDec







Guides and How to's




Acronyms / Also Known As

DGIndexNV, DGDemux




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7 reviews, Showing 1 to 5 reviews


for latest binaries;

http://rationalqm.us/dgdecnv/binaries/


Review by yonta on Dec 28, 2021 Version: 2053.238 OS: Windows 10 64-bit Ease of use: 10/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10




@yonta: The homepage doesn't say anything about DGDecNV being freeware. The official support forum however mentions it: http://rationalqm.us/board/viewtopic.php?f=4&t=1057

Review by pintcat on Dec 27, 2021 Version: 2053 OS: WinXP Ease of use: 10/10 Functionality: 10/10 Value for money: 1/10 Overall: 10/10




As of 04/26/2021, DGDecNV became freeware. See official homepage: http://rationalqm.us/dgdecnv/dgdecnv.html

Review by yonta on Dec 27, 2021 Version: 2053.238 OS: Windows 10 64-bit Ease of use: 10/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10




This is far superior to the old DGIndex (64bit) that I was previously using, better features and better quality video... several filters are included in the new DLL which are also CUDA filters.

I would not expect a drastic speed increase using it, however.. it *does* read BD & VOB files much better than any other solution I have tried to date!

Running GTX-1050Ti no issues, latest Nvidia and CUDA drivers installed (27dec2021)

Thank you *so much*!!


Review by RogerTango on Dec 27, 2021 Version: 2053.0.0.234(64 bit) OS: Windows 10 64-bit Ease of use: 10/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10




Rating by everyone on Oct 5, 2019 Version: 2053.0.0.188 OS: Windows 10 64-bit Ease of use: 10/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10


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Our hosted tools are virus and malware scanned with several antivirus programs using www.virustotal.com.


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