Cross S01 Libvpx -

sudo apt install gcc-aarch64-linux-gnu g++-aarch64-linux-gnu Pro tip: Don't use the generic arm-linux-gnueabihf for A53. Go 64-bit. The A53 loves 64-bit mode for NEON optimizations. libvpx has an incredibly smart build system (via configure ). It auto-detects CPU features. But when cross-compiling, auto-detection runs on your x86 CPU. It will see AVX2 and SSE4 and think, "Great, let's enable those!"

./vpxdec example.vp9 -o output.y4m If you see Using CPU: ARM NEON , pour yourself a coffee. You just successfully tricked a complex x86 build system into emitting perfect NEON assembly for a low-power ARM core. Cross-compiling libvpx isn't hard because of the codec. It's hard because the build system wants to test CPU capabilities, and cross-compilation prevents that. cross s01 libvpx

Here is the magic incantation for the S01 (Cortex-A53): libvpx has an incredibly smart build system (via configure )

Happy compressing. May your S01 stream VP9 without dropping a single frame. P.S. If you try to build for a 32-bit ARMv7 (like the old Pi 2), use --target=armv7-linux-gcc and -mfpu=neon . But honestly? Move to 64-bit. Your A53 will thank you. It will see AVX2 and SSE4 and think,

If you’ve ever tried to build video processing software for embedded Linux, you know the pain. You write beautiful code on your Ryzen workstation, only to watch the Raspberry Pi (or similar SBC) throttle its CPU to 600MHz halfway through a make -j4 .

Your S01 will then Segmentation Fault instantly because it has no idea what AVX2 is.

Make sure your environment variables are clean: