NVEnc temporal-aq=1 not recognized

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BradleyS
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Re: NVEnc temporal-aq=1 not recognized

Post by BradleyS »

I just talked with an FFmpeg developer who has indicated there's nothing implemented to prevent or workaround this sort of failure, so we'll just document it's Turing+ only.

You might be interested in https://handbrake.fr/docs/en/1.3.0/tech ... mance.html, I tried to accomplish some of what you've mentioned there.

Diversion
Posts: 16
Joined: Mon May 18, 2020 4:11 pm

Re: NVEnc temporal-aq=1 not recognized

Post by Diversion »

This part of the documentation:

"Nvidia Nvenc
Supported Hardware and Configurations
Nvidia GeForce GTX Pascal (1050+) and RTX Turing (1650+, 2060+) series GPU or better
Nvidia Graphics Driver 418.81 or later
Windows 10
Experimental Linux support is available in HandBrake’s command line interface"

Or at least on this page; you should state the differences of Pascal and Turing NVEnc compatibiity. Specifically that even though a 1650 or 1650ti is a Turing card, it uses Pascal NVEnc. At a minimum, a 1660 is required to get Turing NVEnc.

Here's a chart of the h264 NVEnc settings (from ffmpeg):
Encoder h264_nvenc [NVIDIA NVENC H.264 encoder]:
General capabilities: delay
Threading capabilities: none
Supported pixel formats: yuv420p nv12 p010le yuv444p yuv444p16le bgr0 rgb0 cuda
h264_nvenc AVOptions:
-preset <int> E..V.... Set the encoding preset (from 0 to 11) (default medium)
default E..V....
slow E..V.... hq 2 passes
medium E..V.... hq 1 pass
fast E..V.... hp 1 pass
hp E..V....
hq E..V....
bd E..V....
ll E..V.... low latency
llhq E..V.... low latency hq
llhp E..V.... low latency hp
lossless E..V....
losslesshp E..V....
-profile <int> E..V.... Set the encoding profile (from 0 to 3) (default main)
baseline E..V....
main E..V....
high E..V....
high444p E..V....
-level <int> E..V.... Set the encoding level restriction (from 0 to 51) (default auto)
auto E..V....
1 E..V....
1.0 E..V....
1b E..V....
1.0b E..V....
1.1 E..V....
1.2 E..V....
1.3 E..V....
2 E..V....
2.0 E..V....
2.1 E..V....
2.2 E..V....
3 E..V....
3.0 E..V....
3.1 E..V....
3.2 E..V....
4 E..V....
4.0 E..V....
4.1 E..V....
4.2 E..V....
5 E..V....
5.0 E..V....
5.1 E..V....
-rc <int> E..V.... Override the preset rate-control (from -1 to INT_MAX) (default -1)
constqp E..V.... Constant QP mode
vbr E..V.... Variable bitrate mode
cbr E..V.... Constant bitrate mode
vbr_minqp E..V.... Variable bitrate mode with MinQP (deprecated)
ll_2pass_quality E..V.... Multi-pass optimized for image quality (deprecated)
ll_2pass_size E..V.... Multi-pass optimized for constant frame size (deprecated)
vbr_2pass E..V.... Multi-pass variable bitrate mode (deprecated)
cbr_ld_hq E..V.... Constant bitrate low delay high quality mode
cbr_hq E..V.... Constant bitrate high quality mode
vbr_hq E..V.... Variable bitrate high quality mode
-rc-lookahead <int> E..V.... Number of frames to look ahead for rate-control (from 0 to INT_MAX) (default 0)
-surfaces <int> E..V.... Number of concurrent surfaces (from 0 to 64) (default 0)
-cbr <boolean> E..V.... Use cbr encoding mode (default false)
-2pass <boolean> E..V.... Use 2pass encoding mode (default auto)
-gpu <int> E..V.... Selects which NVENC capable GPU to use. First GPU is 0, second is 1, and so on. (from -2 to INT_MAX) (default any)
any E..V.... Pick the first device available
list E..V.... List the available devices
-delay <int> E..V.... Delay frame output by the given amount of frames (from 0 to INT_MAX) (default INT_MAX)
-no-scenecut <boolean> E..V.... When lookahead is enabled, set this to 1 to disable adaptive I-frame insertion at scene cuts (default false)
-forced-idr <boolean> E..V.... If forcing keyframes, force them as IDR frames. (default false)
-b_adapt <boolean> E..V.... When lookahead is enabled, set this to 0 to disable adaptive B-frame decision (default true)
-spatial-aq <boolean> E..V.... set to 1 to enable Spatial AQ (default false)
-temporal-aq <boolean> E..V.... set to 1 to enable Temporal AQ (default false)
-zerolatency <boolean> E..V.... Set 1 to indicate zero latency operation (no reordering delay) (default false)
-nonref_p <boolean> E..V.... Set this to 1 to enable automatic insertion of non-reference P-frames (default false)
-strict_gop <boolean> E..V.... Set 1 to minimize GOP-to-GOP rate fluctuations (default false)
-aq-strength <int> E..V.... When Spatial AQ is enabled, this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive) (from 1 to 15) (default 8)
-cq <float> E..V.... Set target quality level (0 to 51, 0 means automatic) for constant quality mode in VBR rate control (from 0 to 51) (default 0)
-aud <boolean> E..V.... Use access unit delimiters (default false)
-bluray-compat <boolean> E..V.... Bluray compatibility workarounds (default false)
-init_qpP <int> E..V.... Initial QP value for P frame (from -1 to 51) (default -1)
-init_qpB <int> E..V.... Initial QP value for B frame (from -1 to 51) (default -1)
-init_qpI <int> E..V.... Initial QP value for I frame (from -1 to 51) (default -1)
-qp <int> E..V.... Constant quantization parameter rate control method (from -1 to 51) (default -1)
-weighted_pred <int> E..V.... Set 1 to enable weighted prediction (from 0 to 1) (default 0)
-coder <int> E..V.... Coder type (from -1 to 2) (default default)
default E..V....
auto E..V....
cabac E..V....
cavlc E..V....
ac E..V....
vlc E..V....


And here's the h265 NVEnc settings:

Encoder hevc_nvenc [NVIDIA NVENC hevc encoder]:
General capabilities: delay
Threading capabilities: none
Supported pixel formats: yuv420p nv12 p010le yuv444p yuv444p16le bgr0 rgb0 cuda
hevc_nvenc AVOptions:
-preset <int> E..V.... Set the encoding preset (from 0 to 11) (default medium)
default E..V....
slow E..V.... hq 2 passes
medium E..V.... hq 1 pass
fast E..V.... hp 1 pass
hp E..V....
hq E..V....
bd E..V....
ll E..V.... low latency
llhq E..V.... low latency hq
llhp E..V.... low latency hp
lossless E..V.... lossless
losslesshp E..V.... lossless hp
-profile <int> E..V.... Set the encoding profile (from 0 to 4) (default main)
main E..V....
main10 E..V....
rext E..V....
-level <int> E..V.... Set the encoding level restriction (from 0 to 186) (default auto)
auto E..V....
1 E..V....
1.0 E..V....
2 E..V....
2.0 E..V....
2.1 E..V....
3 E..V....
3.0 E..V....
3.1 E..V....
4 E..V....
4.0 E..V....
4.1 E..V....
5 E..V....
5.0 E..V....
5.1 E..V....
5.2 E..V....
6 E..V....
6.0 E..V....
6.1 E..V....
6.2 E..V....
-tier <int> E..V.... Set the encoding tier (from 0 to 1) (default main)
main E..V....
high E..V....
-rc <int> E..V.... Override the preset rate-control (from -1 to INT_MAX) (default -1)
constqp E..V.... Constant QP mode
vbr E..V.... Variable bitrate mode
cbr E..V.... Constant bitrate mode
vbr_minqp E..V.... Variable bitrate mode with MinQP (deprecated)
ll_2pass_quality E..V.... Multi-pass optimized for image quality (deprecated)
ll_2pass_size E..V.... Multi-pass optimized for constant frame size (deprecated)
vbr_2pass E..V.... Multi-pass variable bitrate mode (deprecated)
cbr_ld_hq E..V.... Constant bitrate low delay high quality mode
cbr_hq E..V.... Constant bitrate high quality mode
vbr_hq E..V.... Variable bitrate high quality mode
-rc-lookahead <int> E..V.... Number of frames to look ahead for rate-control (from 0 to INT_MAX) (default 0)
-surfaces <int> E..V.... Number of concurrent surfaces (from 0 to 64) (default 0)
-cbr <boolean> E..V.... Use cbr encoding mode (default false)
-2pass <boolean> E..V.... Use 2pass encoding mode (default auto)
-gpu <int> E..V.... Selects which NVENC capable GPU to use. First GPU is 0, second is 1, and so on. (from -2 to INT_MAX) (default any)
any E..V.... Pick the first device available
list E..V.... List the available devices
-delay <int> E..V.... Delay frame output by the given amount of frames (from 0 to INT_MAX) (default INT_MAX)
-no-scenecut <boolean> E..V.... When lookahead is enabled, set this to 1 to disable adaptive I-frame insertion at scene cuts (default false)
-forced-idr <boolean> E..V.... If forcing keyframes, force them as IDR frames. (default false)
-spatial_aq <boolean> E..V.... set to 1 to enable Spatial AQ (default false)
-temporal_aq <boolean> E..V.... set to 1 to enable Temporal AQ (default false)
-zerolatency <boolean> E..V.... Set 1 to indicate zero latency operation (no reordering delay) (default false)
-nonref_p <boolean> E..V.... Set this to 1 to enable automatic insertion of non-reference P-frames (default false)
-strict_gop <boolean> E..V.... Set 1 to minimize GOP-to-GOP rate fluctuations (default false)
-aq-strength <int> E..V.... When Spatial AQ is enabled, this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive) (from 1 to 15) (default 8)
-cq <float> E..V.... Set target quality level (0 to 51, 0 means automatic) for constant quality mode in VBR rate control (from 0 to 51) (default 0)
-aud <boolean> E..V.... Use access unit delimiters (default false)
-bluray-compat <boolean> E..V.... Bluray compatibility workarounds (default false)
-init_qpP <int> E..V.... Initial QP value for P frame (from -1 to 51) (default -1)
-init_qpB <int> E..V.... Initial QP value for B frame (from -1 to 51) (default -1)
-init_qpI <int> E..V.... Initial QP value for I frame (from -1 to 51) (default -1)
-qp <int> E..V.... Constant quantization parameter rate control method (from -1 to 51) (default -1)
-weighted_pred <int> E..V.... Set 1 to enable weighted prediction (from 0 to 1) (default 0)



The problem is knowing which settings work on Pascal or Turing though.

Diversion
Posts: 16
Joined: Mon May 18, 2020 4:11 pm

Re: NVEnc temporal-aq=1 not recognized

Post by Diversion »

BradleyS wrote:
Tue May 19, 2020 4:42 pm
I just talked with an FFmpeg developer who has indicated there's nothing implemented to prevent or workaround this sort of failure, so we'll just document it's Turing+ only.

You might be interested in https://handbrake.fr/docs/en/1.3.0/tech ... mance.html, I tried to accomplish some of what you've mentioned there.
That sounds like a good solution; albeit that the caveat is 1660 or better GPUs have the newer Turing NVEnc and 1650 and 1650ti are still on Pascal NVEnc even though they use Turing cores, the encoder chip code isn't there for Turing.

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BradleyS
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Re: NVEnc temporal-aq=1 not recognized

Post by BradleyS »

Good to know.

Indeed, when revising the NVENC docs I used the source code for those options as reference. Naturally, it's not indicated what's available on what hardware, and there are no guards against blowing it up. :/

At some point, I'd like to better document my test setup for the performance article so others can replicate with newer hardware, etc. The source is the open movie Tears Of Steel, if you'd like to contribute some data. It will probably be better to do asic revision comparisons on the individual hardware pages.

Diversion
Posts: 16
Joined: Mon May 18, 2020 4:11 pm

Re: NVEnc temporal-aq=1 not recognized

Post by Diversion »

BradleyS wrote:
Tue May 19, 2020 4:54 pm
Good to know.

Indeed, when revising the NVENC docs I used the source code for those options as reference. Naturally, it's not indicated what's available on what hardware, and there are no guards against blowing it up. :/

At some point, I'd like to better document my test setup for the performance article so others can replicate with newer hardware, etc. The source is the open movie Tears Of Steel, if you'd like to contribute some data. It will probably be better to do asic revision comparisons on the individual hardware pages.
Awesome, i'll find the open source for that movie to do testing. Let me know how I can assist as I have a Intel + Pascal based machine as well as a AMD + Turing machine. I could also do any AMD based hardware encoding tests as well for AMD Zen2 with VCE.

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BradleyS
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Re: NVEnc temporal-aq=1 not recognized

Post by BradleyS »

Great. :) I have an RX 580 I occasionally pop in for testing (purchased used just for that article, believe it or not). Help is always appreciated.

The documentation source is at https://github.com/HandBrake/HandBrake-docs. There's a contributing document there but TL;DR it's all written in Markdown, so nearly plaintext. Can submit pull requests on GitHub or share info with me when you have time, and I'll work on integrating it when I have time.


Diversion
Posts: 16
Joined: Mon May 18, 2020 4:11 pm

Re: NVEnc temporal-aq=1 not recognized

Post by Diversion »

Good stuff!

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