Add aarch64 and ppc64le architectures

[ehfd]

Checklist

• [x] Used a personal fork of the feedstock to propose changes
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[ehfd]

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[conda-forge-webservices[bot]]

Hi! This is the friendly automated conda-forge-linting service.

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[ehfd]

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[ehfd]

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[ehfd]

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[ehfd]

@hmaarrfk The main intent is to make my currently private (later public) stack build without workarounds I don't like, but this actually has legitimate applications; VA-API is an alternative pathway to video4linux encoding/decoding for aarch64 embedded devices.

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[hmaarrfk]

VA-API is an alternative pathway to video4linux encoding/decoding for aarch64 embedded devices.

Honestly, i thought VA-API was just for intel processors.

Happy to have help on the video stack!

[hmaarrfk]

I somewhat just built this library without thinking too much about the implications, I wanted to use the Intel hardware encoder (it didn't give videos that were of high quality enough, and was only available on a certain subset of processors so it wasn't too fun).

I'm not sure if X11 is required for the core functionality, or just some demo application.

[ehfd]

https://github.com/selkies-project/selkies-gstreamer

This is my project and this is why I'm so keen on making GStreamer and X11 work in Conda. It's because I want low-latency (better than) VNC in HPC environments. Do check it out when you have time. @hmaarrfk We'll probably have a release in ~ 48 hours and this briefly stopped that progress.

The X11 library is still required as a pathway to support devices as an alternative to DRM and if there was a wayland-scanner feedstock it would also build on Wayland.

$ vainfo --help
Show information from VA-API driver
Usage: vainfo --help
        --help print this message

Usage: vainfo [options]
  -a, --all                              Show all supported attributes
Display options:
        --display display | help         Show information for the specified display, or the available display list 
        --device device                  Set device name, only available under drm display
$ vainfo --display help
Available displays:
  wayland
  x11
  drm

It can also expand to Windows (https://devblogs.microsoft.com/directx/video-acceleration-api-va-api-now-available-on-windows/).

And it's also the only way in Linux for now to encode with AMD until Vulkan + AMF works in GStreamer.

[hmaarrfk]

we have some starting seeds of wayland. Excited to see this get through!

[ehfd]

@hmaarrfk Any reason the CI isn't running?