[FFmpeg-user] libaom AV1 Encoding

[Dennis Mungai]

On Wed, 29 May 2019 at 08:25, Matthew Reus <matthew.reus01 at gmail.com> 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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