build_plugin_android.sh

#!/bin/bash -eu

export LIBWEBRTC_DOWNLOAD_URL=https://github.com/Unity-Technologies/com.unity.webrtc/releases/download/M116/webrtc-android.zip
export SOLUTION_DIR=$(pwd)/Plugin~
export PLUGIN_DIR=$(pwd)/Runtime/Plugins/Android

# Download LibWebRTC 
curl -L $LIBWEBRTC_DOWNLOAD_URL > webrtc.zip
unzip -d $SOLUTION_DIR/webrtc webrtc.zip 
cp -f $SOLUTION_DIR/webrtc/lib/libwebrtc.aar $PLUGIN_DIR

# Build UnityRenderStreaming Plugin 
cd "$SOLUTION_DIR"
for ARCH_ABI in "arm64-v8a" "x86_64"
do
  cmake . \
    -B build \
    -D CMAKE_SYSTEM_NAME=Android \
    -D CMAKE_ANDROID_API_MIN=24 \
    -D CMAKE_ANDROID_API=24 \
    -D CMAKE_ANDROID_ARCH_ABI=$ARCH_ABI \
    -D CMAKE_ANDROID_NDK=$ANDROID_NDK \
    -D CMAKE_BUILD_TYPE=Release \
    -D CMAKE_ANDROID_STL_TYPE=c++_static

  cmake \
    --build build \
    --target WebRTCPlugin

  # libwebrtc.so move into libwebrtc.aar
  pushd $PLUGIN_DIR
  mkdir -p jni/$ARCH_ABI
  mv libwebrtc.so jni/$ARCH_ABI
  zip -g libwebrtc.aar jni/$ARCH_ABI/libwebrtc.so
  rm -r jni
  popd
  rm -rf build
done