1# Libvda Rust wrapper 2 3Note: This crate is specific to ChromeOS and requires the native 4[libvda](https://source.chromium.org/chromiumos/chromiumos/codesearch/+/main:src/platform2/arc/vm/libvda) 5library at link time. 6 7Rust wrapper for libvda. This library is used to enable communication with Chrome's GPU process to 8perform hardware accelerated decoding and encoding. It is currently in development to be used by 9crosvm's virtio-video device. 10 11### Building for the host environment 12 13You can also execute `cargo` directly for faster build and tests. This would be useful when you are 14developing this crate. Since this crate depends on libvda.so, you need to install it to host 15environment first. 16 17```shell 18(chroot)$ sudo emerge chromeos-base/libvda # Install libvda.so to host. 19# Build 20(chroot)$ cargo build 21# Unit tests 22(chroot)$ cargo test 23``` 24 25## Updating generated bindings 26 27`src/bindings.rs` is automatically generated from `libvda_common.h`. `src/decode/bindings.rs` is 28automatically generated from `libvda_decode.h`. `src/encode/bindings.rs` is automatically generated 29from `libvda_encode.h`. 30 31See the header of the bindings file for the generation command. 32