rav1e VS ffmpeg-build-script

There should be some major rav1e improvements in the not-so-distant future that should benefit high fidelity encoding very nicely (https://github.com/xiph/rav1e/pull/2921). And I hope someday someone gets 10/12 bit tune butteraugli working in aomenc, should provide a massive efficiency boost in pretty much all scenarios.

There's 3 that I know of,

libaom https://aomedia.googlesource.com/aom, the reference implementation.

https://gitlab.com/AOMediaCodec/SVT-AV1 - from the Alliance for Open Media, which Intel is deeply involved with and is spending a lot of time optimising.

https://github.com/xiph/rav1e - written in rust, also subject to a lot of optimising. It's not complete coverage of all features, intended to be used for places where libaom is too slow.

AV1 currently gets used by Netflix, YouTube (right click on any big popular video "stats for nerds) and so on. It's open source and currently has 3 different encoders. AOM as it's reference encoder available here: https://aomedia.googlesource.com/ as well as SVT-AV1 as the production encoder (like x265 for H265) available here: https://gitlab.com/AOMediaCodec/SVT-AV1 and Rav1e as community project which I personally don't have a use for at all: https://github.com/xiph/rav1e

Not AFAIK. The only relevant effort I'm aware of is rav1e, and it has more assembly in it than Rust.

No. There are hardware encoders. For software encoding while AV1's reference encoder is very slow; both rav1e and SVT-AV1 are usable on a higher end PC built in the last few years.

I'm going to promote rav1e, an AV1 encoder written in Rust+ASM. Unlike the reference encoder, rav1e seeks to focus on psychovisual quality rather than pure metrics, and so to many people it is a promising alternative. However, it has some catching up to do in the speed department.

It's straightforward to compile ffmpeg with libfdk_aac support to be sure quality remains high, especially e.g. build scripts.

After quite a bit of searching around I was unable to find a simple way of getting a build of FFMPEG with all the different AV1 encoders, and building manually would mean I'd have to go get all the libraries that are enabled by default in say, Ubuntu's FFMPEG repo. So I took it into my own hands and modified this build script and added rav1e to the build in my fork here.

install of ffmpeg. I've started using github.com/markus-perl/ffmpeg-build-script because, why re-invent the wheel

I'm currently using this build script so that I can use svt-av1, but I wan't to give rav1e a shot and it's not included. Does anyone know of somewhere I can get ffmpeg compiled with rav1e, or a relatively simple way to do it myself with all the other codecs that build script supports?

These days the situation is much better, but you really want FDK-AAC for best quality (it's proper Fraunhofer code released as Open Source for the Android project, and now widely compatible on all platforms). You can find a standalone front end in the repos, but I prefer to build ffmpeg with support for it for more flexibility. (The ffmpeg built in default aac encoder is still noticeably worse, despite it's improvement a few years ago.)