How to achieve the quality of X264&X265 2pass slow with NVENC HEVC?STAXRIP

[Comparison]

How to achieve the quality of X264 "2pass slow" with NVENC HEVC? I used the Nvidia Card's picture quality enhancer (sharpening), and the results were fantastic.

I used the latest version of Staxrip, updated only some files manually.

Here is the sample file, I cut it out from blu-ray without re-encoding: 1080p@23.97 (600 Mbyte)

You can download it here (until a week) https://wsi.li/BEAWwFwfV7wQ
and you can repeat the test too.

REMEMBER: the file sharing service will delete automatically the files after 7days.

X264 2pass Slow option with the basic settings ("factory settings") proved to be similar or a bit worse than NVENC HEVC at the same bitrate with its built-in HARDWARE supported picture enhancer/sharpener.

I encoded both material with 2000 Kbit/sec, and later with 3800 kbit/s (average Youtube bitrate)

You can download the results here:

X264 2pass SLOW 2000 Kbps (48 Mbyte)
https://wsi.li/6iOFE54gW2Re

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NVENC HEVC 2000 Kbps (49 Mbyte)
https://wsi.li/o3uZ5UjpchUU

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The most important tests:

X264 2pass SLOW 3800 Kbps (88 Mbyte)
https://wsi.li/TfvHGS4LJRd0

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NVENC HEVC 3800 Kbps (88 Mbyte)

https://wsi.li/Tq3QBRHhMqc6


X264 staxrip settings
















NVENC HEVC STAXRIP settings:













THE MOST IMPORTANT SETTING of the enhancer:







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Results in pictures: Save the images to watch them in full resolution, or copy the "image url" and open them in new tabs.

X264 (3800 kbps)







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NVENC HEVC 3800








I worked two days for the perfect option of the best settings for the enhancer.

[LigH.de]

Is this undeclared advertizing?

[Comparison]

Is this undeclared advertizing?

If you send me money, than it will be an advertisement.

[Comparison]

X265 2pass SLOW (factory settings) WAS humiliated by NVENC h265 with this settings:

https://image.ibb.co/fCsqcT/image.png


X265 2pass SLOW video (88Mbyte)

https://wsi.li/quEHu71ZWXCd

NVENC HEVC (88 Mbyte)

https://wsi.li/qGAp5097rJ5J

It is shocking good!!!!!!

I used only my GPU for image enhancement process and compress, and I achieved the quality of the X265 2pass SLOW.

So a video card with clever settings can create very very very good quality.

Images:

X265 2pass SLOW:








NVENC HEVC pictures

[crossingover]

Thanks for share the settings. That help me to rip a lot of videos and save time!

If you have new settings, please share it

[Zero-11]

here are the Staxrip Settings for NVENC h264 on x264 placebo quality Level which encodes with 800+ fps on a 4:3 PAL DVD file. where placebo reaches only 14 fps per second on a 2700X

encoding is done with the Turing encoder on a 1660 Super

[LigH.de]

Is this now "the Flat Earth of video compression"? How do you prove your "same quality" claim?

[Zero-11]

Is this now "the Flat Earth of video compression"? How do you prove your "same quality" claim?

You need proof for your eyes not seeing compression artifacts? Do you need proof that the sky is blue or that trees exist?

[LigH.de]

I want to see it with my eyes, not rely on yours.

PS: Not seeing any artifacts is no proof and no miracle. I want to compare some visible artifacts at the same bitrates for how annoying they appear to me.

[sophisticles]

Not to rain on anyone's parade, but of course nvenc matches x264+placebo in this test, I would have been shocked if it didn't.

Look at the test settings, source is "4:3 PAL DVD" and according to the screenshots he used a max of 17.5 Mb/s, max bit rate for DVD is 9.8 Mb/s mpeg-2, both those encodes are probably close to mathematically lossless at the tested bit rate.

[LigH.de]

The real challenge is not to show no noticeable artifacts (due to plenty bitrate), but to make the inevitable noticeable artifacts (due to limited bitrate) look less annoying.