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Participating Frequently
May 26, 2020
Question

14.2 nvenc issue (hardware encoding)

  • May 26, 2020
  • 4 replies
  • 3722 views

Hey guys! I've been lurking through this forum for a couple of years always finding a good solution for my issues, now I've come because I'm not being able to use the new hardware encoding feature launched on 14.2 last week.

 

SPECS
I have a 7700k with a a gtx 1060 6gb, 16gigs, 480 nvme, all running on win 10 pro build 18362. My hardware while is not the best, should be enough to see at least some difference. 

At my first attempt of using this feature I updated Premiere Pro, and got the latest nvidia drivers (442.92). The hardware encoding got enabled on the export window but didn't notice any difference. 

After searching here and on many other sites I've found an Adobe article saying sometimes with a clean drivers install the issues will go away, so I uninstalled all nvidia drivers, deleted premiere pro and AME, cleaned windows registry and started all over again, with no luck. 

After the clean install, no mather how I test, I get the same results: The software encoded versions end up being bigger in size (almost double), they both take the same time to render, and when I look over the task manager the GPU rest at 0% for encode, decode and also cuda cores.

Am I missing something here?

Thanks!

This topic has been closed for replies.

4 replies

Participant
June 11, 2020

Hi.

I have the same problem. I have RTX 2060, latest drivers. No mater i use hardware accelaration or not l, my render times are the same. Did you find solution for this?

MyerPj
Community Expert
Community Expert
May 26, 2020

I don't understand trouble shooting when you testing custom settings. Just select an absolute stock export setting. High bit rate is fine, but change it. Only change the hardware/softare dropdown between tests. 

 

I'm running with a 1070 and it works excellently. 3:28 export with hardware select, absolutly everything stock h.264 High bit rate. Then change only the hardware dropdown to software and 6:05. Free savings, I'm most impressed.

DarirdzAuthor
Participating Frequently
May 26, 2020

Let's roll with it, which "stock export setting" should I use? I have a simple 1080p 29.97 timeline. 

MyerPj
Community Expert
Community Expert
May 26, 2020

Here's the one I tested with:

 

 

 

I pressed the Match Source button before the initial encode, then for the second test, I only changed to Software Encoding.

 

Community Expert
May 26, 2020

Are you using VBR two pass, hardware encoding only works with CBR and VBR one pass.

DarirdzAuthor
Participating Frequently
May 26, 2020

No, if so I wouldn't be able to select hardware encoding over the export window. 

Community Expert
May 26, 2020

What format are you exporting to?

DarirdzAuthor
Participating Frequently
May 26, 2020

Hi Richard, tried both h.264 and h.265. Didn't noticed differences there. 

Also, one thing I've missed is that Premiere no longer respects the target bitrate. All my tests were made with max bitrate available and both software and hardware encoded end up being almost half the bitrate selected. 

Legend
May 26, 2020

Actually, there is a hard limit on the maximum supported bitrate for hardware encoding. Maximum bitrate is only about 60 Mbps regardless of resolution. If you use a preset that involves exceeding that maximum bitrate, Premiere Pro's hardware encoder will default that to a low-ish 15.2 Mbps. So, above 50 to 60 Mbps, only software encoding is supported.