#!/bin/bash

set -e

INSTALL_CMD=install-strip
if [[ $# -gt 0 ]]; then
  INSTALL_CMD=$1
fi

OPUS_CFLAGS='-O2 -march=armv6k -mtune=arm1136j-s'
OPUS_LDFLAGS='-O2'

OPUS=opus-1.1
OPUS_SOURCE=$OPUS.tar.gz
OPUS_TOOLS=opus-tools-0.1.9
OPUS_TOOLS_SOURCE=$OPUS_TOOLS.tar.gz

source ../../a5s_linux_sdk/ambarella/build/env/CodeSourcery.env
PATH=$PATH:$ARM_LINUX_TOOLCHAIN_DIR/bin

TOP=`pwd`

rm -rf dist
mkdir dist
rm -rf build
mkdir build

# BUILD OPUS
cd build
tar zxfv ../$OPUS_SOURCE
cd $OPUS

./configure --enable-fixed-point \
  --host=arm-none-linux-gnueabi \
  -prefix=$TOP/dist \
  CFLAGS="$OPUS_CFLAGS" \
  LDFLAGS="$OPUS_LDFLAGS"
make V=1
make $INSTALL_CMD

cd ../..

# BUILD OPUS-TOOLS
cd build
tar zxfv ../$OPUS_TOOLS_SOURCE
cd $OPUS_TOOLS

(
  PKG_CONFIG_LIBDIR=$TOP/dist/lib/pkgconfig
  PKG_CONFIG_PATH=$TOP/../speex/dist/lib/pkgconfig

  # Check if ogg is installed
  if pkg-config --exists ogg; then
    echo "libogg found! Starting opus-tools build"

    ./configure \
      --host=arm-none-linux-gnueabi \
      -prefix=$TOP/dist \
      --without-flac \
      --with-ogg=$TOP/../speex/dist \
      --with-opus=$TOP/dist \
      CFLAGS="$OPUS_CFLAGS" \
      LDFLAGS="$OPUS_LDFLAGS"
    make V=1
    make $INSTALL_CMD
  else
    echo "libogg not found; to build opus-tools, first build speex package for libogg"
  fi
)

cd ../..

# CLEANUP
rm -rf fakeroot
mkdir -p fakeroot/usr/lib
cp -d dist/lib/libopus.so* fakeroot/usr/lib/
tar cjfv opus.tar.bz2 fakeroot
cp opus.tar.bz2 ../../a5s_linux_sdk/ambarella/boards/dropcam/rootfs

rm -rf build_dist
mkdir build_dist
cp -d -r dist/include build_dist/
cp -d -r dist/lib build_dist/
tar cjfv opus-build-dist.tar.bz2 build_dist/*