Introducing Google AI Edge Portal: Benchmark Edge AI at scale. Sign-up to request access during private preview.

LiteRT v2 (CompiledModel) C++ SDK for Android

You can also use prebuilt LiteRT Maven packages for your Android C++ libraries without building the entire LiteRT source tree. The integration is done with CMake.

The following shows basic steps to use LiteRT CompiledModel API in your C++ NDK code.

Integrate LiteRT C++ SDK

Choose a folder to host LiteRT C++ SDK. We'll refer to it as <litert_cc_sdk_location>.

Download C++ SDK

You need to prepare the necessary files (CMakeLists.txt, source and header files) from LiteRT C++ SDK zip file under <litert_cc_sdk_location>.
```
wget https://github.com/google-ai-edge/LiteRT/releases/download/<litert_version>/litert_cc_sdk.zip
unzip litert_cc_sdk.zip -d <litert_cc_sdk_location>
```

Place libLiteRt.so from the LiteRT Maven package under <litert_cc_sdk_location>.

cp <path_to_prebuilt_lib>/libLiteRt.so <litert_cc_sdk_location>/litert_cc_sdk/

Update your CMakeLists.txt to use LiteRT API.

add_subdirectory("<litert_cc_sdk_location>" "<litert_cc_sdk_location>/build")
include_directories("<litert_cc_sdk_location>")

target_link_libraries(${CMAKE_PROJECT_NAME}
        # Use `litert_cc_api` for LiteRT C++ SDK
        litert_cc_api
        android
        log)

Update your build.gradle.kts to configure LiteRT C++ SDK.

    externalNativeBuild {
        cmake {
            path = file("<litert_cc_sdk_location>/CMakeLists.txt")
            version = "3.22.1"
        }
    }