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FFmpeg Gets NVENC AV1 Encode Support for a 75-100% Encoding Speed Uplift Over HEVC

btarunr

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Popular video transcoding and playback software FFmpeg, in its latest update, received support for AV1 format hardware-accelerated encoding leveraging the NVENC AV1 hardware encoders on the latest NVIDIA GeForce RTX 40-series "Ada" GPUs. The author Timo Rothenpieler remarked that in his testing, the new NVENC AV1 encoder is outperforming the NVENC HEVC-based FFmpeg encoding by 75 to 100 percent, in terms of encoding speed, at comparable quality. When deployed at a data-center scale, or even a production studio-scale, accelerated AV1 encoding should have a tangible impact on costs, and not just because AV1 is a royalty-free format. NVENC AV1 encoding support was also recently added to OBS Studio, the popular free video streaming software.



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Rowsol

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That is some serious gains.
 
Toothless

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Ah, such a great tool that tries to do everything but fails at so many things. Kudos to whoever still support it.
 
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probably cant do multiple encodes at the same time like with HEVC

zlobby said:
Ah, such a great tool that tries to do everything but fails at so many things. Kudos to whoever still support it.
Click to expand...
whoever? literally everything uses ffmpeg
 
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Toothless said:
Shadowplay (clearly NVIDIA software) uses NVENC.
Click to expand...
Yes but it does SDR recordings with H.264 and HDR recordings with H.265. It doesn't use AV1 at all yet.

It took 6 years after the GTX 900 series came out with H.265 support for Shadowplay to finally get H.265 10-bit support.
 
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Fierce Guppy

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junglist724 said:
Yes but it does SDR recordings with H.264 and HDR recordings with H.265. It doesn't use AV1 at all yet.

It took 6 years after the GTX 900 series came out with H.265 support for Shadowplay to finally get H.265 10-bit support.
Click to expand...

Ravic mentioned this yesterday during his BF2042 stream, that AV1 is a superior hardware based codec but is not utilised by shadowplay in Geforce Experience so I thought I'd check here.

Edit: Oh, yeah... I just remembered this useful link. AV1 encoding is only supported by the RTX 4000 series. Now it all makes sense. :cool:
 
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b4psm4m said:
I wonder what the quality is like compared to CPU encoding.
Click to expand...
From my rough testing it's not very good, about on par with NVENC H.265. I really have to lower the CQ value and use the slowest preset to get OBS NVENC AV1 recordings to look almost flawless. Re-encoding in Handbrake using my CPU resulted in a file 1/44th the size that looked about as good to my eyes.

Nvidia only claims NVENC AV1 has 1.45x better efficiency compared to NVENC H.264.
 
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