ARM64 Support for Android

[sirasi]

Hi,

is it planned to support ARM64 for android in the future? Or is it already possible, i did not see it...

[kspes]

not in the near future. but the code is 64bit-safe. you can just compile it for arm64 if you want. but you won't get arm assembly optimizations.

[sirasi]

Really? Is it that easy? What do i have to change to make it working?
would be great!

[borisblizzard]

Hello,

Actually this isn't quite correct. Our ASM optimizations work only on 32-bit CPUs. Somebody recently contacted me directly about ARM64v8 support and we came to the conclusion that we'd need updated ASM code for 64-bit support.

[kspes]

Update on this question, I got arm64 NEON optimizations working on iOS and MacOS (arm64) using code from this repo:
https://github.com/linnaea/theora/tree/master

This user rewrote arm specific code using llvm intrinsics, which are usable on both 32 and 64 bit archs. I suspect I'll have success porting to android as well. Hope it helps!