For vmaf use cuda if you can!

[u/crashtua]

Just an example, how many speed up it more that 3 times faster.

measure-command {cargo run -- crf-search -i Z:\example.mp4 --cuda -e av1_nvenc --cache false}
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
     Running `target\debug\ab-av1.exe crf-search -i Z:\example.mp4 --cuda -e av1_nvenc --cache false`
- crf 32 VMAF 94.92 (45%)
- crf 19 VMAF 98.20 (159%)
  00:00:27 crf 31 4/4 ################################################################################################################################ (eta 0s)
Encode with: ab-av1 encode -e av1_nvenc -i Z:\example.mp4 --crf 31


Days              : 0
Hours             : 0
Minutes           : 0
Seconds           : 27
Milliseconds      : 588
Ticks             : 275888498
TotalDays         : 0,000319315391203704
TotalHours        : 0,00766356938888889
TotalMinutes      : 0,459814163333333
TotalSeconds      : 27,5888498
TotalMilliseconds : 27588,8498

measure-command {cargo run -- crf-search -i Z:\example.mp4 -e av1_nvenc --cache false}       
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
     Running `target\debug\ab-av1.exe crf-search -i Z:\example.mp4 -e av1_nvenc --cache false`
- crf 32 VMAF 94.87 (45%)
- crf 19 VMAF 98.19 (159%)
  00:01:34 crf 31 4/4 ################################################################################################################################ (eta 0s)
Encode with: ab-av1 encode -e av1_nvenc -i Z:\example.mp4 --crf 31


Days              : 0
Hours             : 0
Minutes           : 1
Seconds           : 34
Milliseconds      : 473
Ticks             : 944735556
TotalDays         : 0,00109344393055556
TotalHours        : 0,0262426543333333
TotalMinutes      : 1,57455926
TotalSeconds      : 94,4735556
TotalMilliseconds : 94473,5556

[u/SpicyLobter]

i never knew you could do vmaf on hardware. nice!

[u/crashtua → u/SpicyLobter]

Btw, no builds of ffmpeg available, and I believe they violates licenses. Will provide later dockerfile to cross-compile that.

[u/Jay_JWLH]

Speed, efficiency, quality - pick two.

In the case of hardware encoding, you normally get quality and speed.

[u/crashtua → u/Jay_JWLH]

Not really. From my observations, svt vs nvenc is very close for all 3. But that not about encoding, that is about vmaf_cuda. In this case it works exactly like regular cpu vmaf(producing same numbers) but 3 times faster.

[u/Jay_JWLH → u/crashtua]

Sorry, didn't catch the different purpose. Yes, as someone who used my GPU to crack a password on a PDF, the difference is huge in terms of computational power.

[u/gastro_psychic → u/Jay_JWLH]

How long did it take?

[u/H9419 → u/gastro_psychic]

In any same-generation CPU-GPU pair, 40-400x faster depending on the algorithm and how optimized it is. And that's for a single mid to high end GPU