Best x265 HEVC Video Converter with CUDA Support

[velocityg4]

I'm trying to find the best video converter for transcoding video to x265.

Requirements
- x265 MKV output of course
- GPU Hardware Acceleration NVIDIA/CUDA
- Constant Quality/Variable Bit Rate settings. (I don't want to waste space with a set Bit rate)
- Maintain original aspect ratio
- Maintain original FPS
- Maintain original resolution
- batch processing
- Subtitle pass-through
- Windows 10 Support

Nice to have
- audio pass-through
- Batch process different resolutions with auto settings that preserve the above

I've tried Handbrake. It's nice but I could not figure out how to enable GPU Acceleration.

System Specs
- GeForce GTX 970
- i5-3570k @4.3Ghz
- 16GB RAM
- Windows 10 Pro x64

 

[TerryLaze]

Try nvencc by rigaya it's a command line tool so you can batch run it,default is to leave everything(fps resolution etc) untouched,you could also try ffmpeg which is pretty much the same deal but more general usage since it includes a lot of codecs.
http/rigaya34589.blog135.fc2.com/blog-category-17.html

Amazing speed.
https/youtu.be/s9WD7vIqns8

 

[iamacow]

Adobe Encoder which come with Premiere is the best H.265 converter I've found. DVDFAB makes a converter that supports CUDA also, but that software is kinda hit or miss with very little settings since its mainly meant to rip movies.

 

[velocityg4]

Although I prefer using a GUI. I'll give FFMPEG and NVENCC a try when I have the time. I'd love to use Adobe Premiere or Adobe Media Encoder but monthly payments for Adobe CC is out of the question.

I'll also look at DVDFab. As they also offer a video converter suite.

 

[velocityg4]

Wow, FFMPEG offers a cacophony of options. To say I'm overwhelmed is an understatement.

I'm trying out using it with the myFFmpeg GUI. While I understand the basic options. There are a lot of advanced options with zero documentation.

Everything is still going through my CPU. It's critical I get GPU acceleration working. I have hundreds of hours of HD video to transcode. Encoding is much slower than handbrake for the same settings.

When I originally encoded everything I was using a GeForce GTX 560 Ti to encode into h264. It didn't take more than an hour to encode two hours worth of video at a high bitrate. My GTX 970 should crush the h265 conversion to a much lower bitrate.

If I could get Handbrake to use CUDA. I'd be golden right now.

Edit: I just tried DVDFab. It is a bit too dumbed down and doesn't offer all the features I want. At least not that I have found thus far. However, GPU acceleration works. Jumpin' Jehoshaphat, what a difference! At the same quality settings. What takes Handbrake 4+ hours by CPU takes 16 minutes with my GPU. It isn't even utilizing my GPU fully. DVD Fab 40% CPU usage and 40% GPU usage while Handbrake is at 100% CPU usage.

 

[iamacow]

[strike]Not many choices to pick from that use CUDA acceleration and none that I know is free. Someday handbreak will have it.[/strike]

Looks like Handbrake has CUDA support for H.264, just not [strike]HEVC. I don't think any free programs do yet. Honestly using Adobe Encoder with a watch folder setup is amazing. I had two 1080Ti chugging away at 2 years of archives converting from MPEG2 to HEVC. Only took a week, mostly due to it being 6TB and 1Gbps line to and from. Total spaced used now is under 200GB after all said and done.[/strike]

Edit: It looks like I was wrong. Encore is CPU only...

 

[procsacs]

Try nvencc by rigaya it's a command line tool so you can batch run it,default is to leave everything(fps resolution etc) untouched,you could also try ffmpeg which is pretty much the same deal but more general usage since it includes a lot of codecs.
http/rigaya34589.blog135.fc2.com/blog-category-17.html

Amazing speed.
https/youtu.be/s9WD7vIqns8

How to run that tool ?

 

[Ana Clara]

Try nvencc by rigaya it's a command line tool so you can batch run it,default is to leave everything(fps resolution etc) untouched,you could also try ffmpeg which is pretty much the same deal but more general usage since it includes a lot of codecs.
http/rigaya34589.blog135.fc2.com/blog-category-17.html

Amazing speed.
https/youtu.be/s9WD7vIqns8

How to run that tool ?

https/youtu.be/s9WD7vIqns8?t=49s

 

[cherry blossoms]

If you desire a frontend for the command line, you can always try MediaCoder

http/www.mediacoderhq.com/

No safety, you CAN set combinations of parameters that don't encode correctly, but if you know what parameters you want, you can set them through the menus or the override "pass these to the encoder" parameter area. You have to play around with what encoder/decoder you want to use, as they don't all play nice with each other, but an option.

Other frontend freebie options to try would be StaxRip or Hybrid

https/www.videohelp.com/software/Hybrid

https/www.videohelp.com/software/StaxRip