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Discuss : Nvidia Hardware Accelerated Encode for H264/HEVC

Adobe Employee ,
Apr 03, 2020 Apr 03, 2020

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With the latest Adobe Media Encoder Beta build we have enabled Hardware Accelerated Encoding through Nvidia GPU card.


If you have Nvidia GPU card on your Windows machine, you will be able to use this feature.


To enable this option, select H.264/HEVC from the Format drop-down under Export Settings. Then under the Video tab, go to Encoding Settings and set the Performance to Hardware Encoding. Setting it to Software Encoding will disable hardware encoding and Adobe Premiere Pro won't use Nvidia HW to encode the media. Please see attached screenshot.

Feature is enabled in Adobe Premiere Pro Beta , Adobe Media Encoder Beta and Adobe Premiere Rush.

 

Please try out the feature and share your feedback.

TOPICS
Feedback , Performance

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New Here ,
Apr 05, 2020 Apr 05, 2020

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Hi,

I'm encoding DNxHD 185x file to Youtube using the default Youtube 1080p preset + changing "Render at Maximum Depth" and "Use Maximum Render Quality" to on.

The resulting file is 141MB. If I encode with the same settings in the latest AME 2020 release version the resulting file is 1,65Gb. Also if I change in beta AME to VBR 2 pass I get that 1,65Gb file.

So... this is something that needs to be seen. The default is nowhere near the quality it should be.

 

Steps to reproduce:

1. ... Encode DNxHD 185x file with Youtube 1080p preset. The target bitrate is then set to 16Mbps, so unchanged from the default settings.

 

Result: ... The resulting file is way too small, 1 289kb/s (Copy/Paste from MediaInfo):

Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (mp42/mp41)
File size : 141 MiB
Duration : 15 min 20 s
Overall bit rate mode : Variable
Overall bit rate : 1 289 kb/s
Encoded date : UTC 2020-04-04 16:20:58
Tagged date : UTC 2020-04-04 16:20:59
©TIM : 01:00:00:00
©TSC : 25
©TSZ : 1

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 1 Ref Frames
Format settings, CABAC : Yes
Format settings, ReFrames : 1 frame
Format settings, GOP : M=1, N=30
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 15 min 20 s
Bit rate : 968 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.019
Stream size : 106 MiB (75%)
Language : English
Encoded date : UTC 2020-04-04 16:20:58
Tagged date : UTC 2020-04-04 16:20:58

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : mp4a-40-2
Duration : 15 min 20 s
Source duration : 15 min 20 s
Bit rate mode : Variable
Bit rate : 317 kb/s
Maximum bit rate : 355 kb/s
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 34.8 MiB (25%)
Source stream size : 34.8 MiB (25%)

 

 

Expected: ...The resulting file is the same size as before.

System info
Application: Adobe Media Encoder (Beta) v14.2.0.4
OS: Windows v6.2
RAM: 31.00 GB
CPU Count (logical): 12

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New Here ,
Apr 05, 2020 Apr 05, 2020

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Ah, the plot thickens...

If I use Hardware Encoding I'm stuck with VBR 1Pass. If I change it to VBR 2Pass AME changes to Software Encoding.

BUT both give an estimation of 1877MB for the encoded file. Obviously that is totally incorrect for Hardware/VBR 1Pass.

 

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New Here ,
Apr 06, 2020 Apr 06, 2020

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I tested this with the maximum setting of 62,5Mbps (Hardware, VBR 1 Pass). The resulting file was again the same 141MB.

This is obviously a very serious bug.

 

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Adobe Employee ,
Apr 07, 2020 Apr 07, 2020

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Hi Tero,

Please share following information so that we can reproduce the issue:

Operating system: Win Or MAC with version
Display Card: Intel, Nvidia or AMD
CPU: intel or AMD
Display Driver version:

Regards
Abhishek

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New Here ,
Apr 07, 2020 Apr 07, 2020

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Hi Abhishek,

thank you for contacting.

This is on Win10 Pro 1903

Intel i7 3930K @3.2GHz

Memory 32Gb

nVidia P2000

Driver 441.28

 

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Adobe Employee ,
Apr 07, 2020 Apr 07, 2020

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Hi Tero,

 

Thanks for all information. we are able to reproduce the issue with Hardware Encode. we are working on fix.

 

Regards

Abhishek 

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New Here ,
Apr 17, 2020 Apr 17, 2020

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Could you allow 10bit HEVC encoding in future patch? Banding will greatly reduce from 8bits to 10bits. Thanks, awesome work guys!

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Community Beginner ,
May 06, 2020 May 06, 2020

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I'm unable to select Hardware Encoding, although I can use Mercury HW in Premiere itself.

Message "Your system doesn't support hardware encoding in the current settings." 

HPZ800 Dual CPU 2.67Ghz, 48g ram Win 10 Pro

NVIDIA GTX770 Driver version 26.21.14.3200

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