Script to build OpenH264 library for Android NDK under Linux (requires Android NDK, curl, unzip)

openh264-android-build.sh

#!/bin/sh
export NDK=~/Apps/AndroidSDK/ndk-bundle # Change me
export JNILIBS_DIR=../../app/src/main/jniLibs # Change me
export INCLUDE_DIR=../../app/src/main/cpp/libopenh264 # Change me
export DOWNLOAD_URL=https://github.com/cisco/openh264/archive/master.zip

mkdir -p tmp
ln -sf $NDK/prebuilt/linux-x86_64/bin/yasm tmp/nasm
export PATH=$(pwd)/tmp:$PATH

if [ ! -f src.zip ]; then
	curl -L $DOWNLOAD_URL --output src.zip || exit 1
fi

declare -A arch_abis=(
	["arm"]="armeabi-v7a"
	["arm64"]="arm64-v8a"
	["x86"]="x86"
	["x86_64"]="x86_64"
)

declare -A ndk_levels=(
	["arm"]="16"
	["arm64"]="21"
	["x86"]="16"
	["x86_64"]="21"
)

for arch in arm arm64 x86 x86_64; do
	echo "Building for $arch (${arch_abis[$arch]})"
	unzip src.zip || exit 1
	rm -rf src
	mv openh264-master src
	if [ "$arch" == "x86" ]; then
		export ASMFLAGS=-DX86_32_PICASM
	else
		export ASMFLAGS=
	fi
	make OS=android NDKROOT=$NDK TARGET=android-${ndk_levels[$arch]} NDKLEVEL=${ndk_levels[$arch]} ARCH=$arch -C src NDK_TOOLCHAIN_VERSION=clang libraries || exit 1
	mkdir -p "$JNILIBS_DIR/${arch_abis[$arch]}"
	cp -v src/libopenh264.{so,a} "$JNILIBS_DIR/${arch_abis[$arch]}"
done

mkdir -p "$INCLUDE_DIR/wels"
cp -v src/codec/api/svc/*.h "$INCLUDE_DIR/wels"

rm -rf tmp src