libaom AV1 Encoding

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libaom AV1 Encoding

Matthew Reus
hello all ,

DO libaom AV1 support gpu or not . As on libx264 and libx265 they do
support gpu encoding .
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Re: libaom AV1 Encoding

Carl Eugen Hoyos-2
> DO libaom AV1 support gpu or not .

Wrong mailing list?

> As on libx264 and libx265 they do support gpu encoding .

I don't think this is correct as-such, x264 has a gpu option,
but is has minimal effect and certainly doesn't imply
"gpu encoding".

Carl Eugen
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Re: libaom AV1 Encoding

Brainiarc7
In reply to this post by Matthew Reus
On Wed, 29 May 2019 at 08:25, Matthew Reus <[hidden email]> wrote:

> hello all ,
>
> DO libaom AV1 support gpu or not . As on libx264 and libx265 they do
> support gpu encoding


Hello there,

This may be the wrong mailing list , particularly in the case of libaom’s
AV1 encoder, but:

(a). No, no form of GPU acceleration is supported by the libaom AV1
encoder, or it’s wrapper in FFmpeg.

(b). The same applies to libx265.

(c). For libx264, only OpenCL based lookahead acceleration is available.
However, it’s impact on performance is negligible on systems with decent
processors. The lookahead implementation is a highly parallelized portion
of the encoder, which is why it can take advantage of OpenCL, but overall,
it’s a small portion of the encode pipeline. It’s not worth looking into
this if performance is your main goal.

With that said, keep an eye out for other solutions that may implement AV1
based bitstream encoding in hardware, particularly the likes of Intel (in
future GPUs due to their SVT AV1 encoder pipelines) and potentially, Xilinx
(in partnerships with NGCodec, etc).

>
>
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