VideoStudio X7 and nVidia

[SoNic67]

Basically, this applies to nVidia cards running with the latest drivers and VideoStudio X7.
I just upgraded my video card to the newer nVidia GTX 960. Installing the drivers, I found out that H264 encoding wasn't working anymore (with an error message about encoder missing).
I found out that if we update the drivers past version 337.88, nVidia wipes out the old CUDA encoding capability.
This is because the "newer" Kepler and Maxwell generation cards rely on a integrated hardware encoder (nvenc), so nVidia wants people to just switch the hardware acceleration from CUDA to newer nvenc.
Corel didn't update the X7 to use the newer nvenc hardware. And for the GTX 960 there is no way I can use the older 337.88 drivers, they don't recognize the card.
My solution to bring back h264 hardware acceleration for nVidia cards using latest drivers is basically to add back the files that where dropped by nVidia from drivers.

1. Download the 337.88 drivers from nVidia: http://www.geforce.com/drivers/results/75992 Or the same version for Quadro cards: http://www.nvidia.com/download/driverRe ... 5953/en-us
2. Extract the drivers on HDD - either by running the exe (will create a nVidia folder on the C drive) or using 7zip extractor.
3. Select the three CUDA encoder .dll files from 337 extracted installation folder and copy them in a safe location. Those .dll files are named:
nvcuvenc.dll, nvcuvenc32.dll and nvcuvenc64.dll.
4. Install the latest nVidia driver as desired.
5. Copy the three files from above in Windows\System32 folder.
6. Result: CUDA encoding is back for h264 files and nVidia cards.

If you don't want to do your own extracting, I added the files here:
CUDA_Encoder.zip
With those files you need to do only the steps 5 and 6.

SoNic67

[aussiejoe]

Thanks for the heads up.
I just happen to have driver 337.88 running with my card at present (GTX88M) and have resisted updating the drivers because it works well.
For me, with video cards/drivers - if it works leave it alone.
cheers

[SoNic67]

Yep, with my previous nVidia Fermi-generation card it was definitely the best driver. But with the new GTX 960 I cannot use that driver anymore (doesn't recognize the newer card) so... I had to improvise

[atidus]

I have followed your instruction by install older driver for Nvidia GTX 760 ,After that I can use cuda acceleration for some software like Xilisoft Video Converter (Which I could not enable it before)
But With Corel Videostudio X7 , My GPU load only 1-2% when I render my video to MP4 File format.

I have sticked all acceleration - Performance tab in Preferences .

Do you have any solution for this.

Thanks You!

[SoNic67]

Not sure... GPU-Z showed that acceleration was working again in X7. However, in X8 didn't help.
I think that the CUDA encoder is supporting only H264 progressive formats (AVC?) on GeForce cards (and both p and i formats on Quadro).