#!/bin/sh

set -e
set -u

jflag=
jval=2

while getopts 'j:' OPTION
do
  case $OPTION in
  j)    jflag=1
            jval="$OPTARG"
            ;;
  ?)    printf "Usage: %s: [-j concurrency_level] (hint: your cores + 20%%)\n" $(basename $0) >&2
        exit 2
        ;;
  esac
done
shift $(($OPTIND - 1))

if [ "$jflag" ]
then
  if [ "$jval" ]
  then
    printf "Option -j specified (%d)\n" $jval
  fi
fi

cd `dirname $0`
ENV_ROOT=`pwd`
. ./env.source

rm -rf "$BUILD_DIR" "$TARGET_DIR"
mkdir -p "$BUILD_DIR" "$TARGET_DIR"

# NOTE: this is a fetchurl parameter, nothing to do with the current script
#export TARGET_DIR_DIR="$BUILD_DIR"

echo "#### FFmpeg static build, by STVS SA ####"
cd $BUILD_DIR
../fetchurl "http://www.tortall.net/projects/yasm/releases/yasm-1.3.0.tar.gz"
../fetchurl "http://www.bzip.org/1.0.6/bzip2-1.0.6.tar.gz"
../fetchurl "http://downloads.xiph.org/releases/ogg/libogg-1.3.2.tar.gz"
../fetchurl "http://downloads.xiph.org/releases/vorbis/libvorbis-1.3.4.tar.gz"
../fetchurl "http://downloads.xiph.org/releases/theora/libtheora-1.1.1.tar.bz2"
../fetchurl "https://webm.googlecode.com/files/libvpx-v1.3.0.tar.bz2"
../fetchurl "http://downloads.sourceforge.net/project/faac/faac-src/faac-1.28/faac-1.28.tar.bz2"
../fetchurl "ftp://ftp.videolan.org/pub/x264/snapshots/last_x264.tar.bz2"
../fetchurl "http://downloads.xvid.org/downloads/xvidcore-1.3.3.tar.gz"
../fetchurl "http://downloads.sourceforge.net/project/lame/lame/3.99/lame-3.99.5.tar.gz"
../fetchurl "http://downloads.xiph.org/releases/opus/opus-1.1.tar.gz"
../fetchurl "http://sourceforge.net/projects/libpng/files/libpng16/1.6.13/libpng-1.6.13.tar.gz"
../fetchurl "http://zlib.net/zlib-1.2.8.tar.gz"
../fetchurl "https://www.openssl.org/source/openssl-1.0.1i.tar.gz"
../fetchurl "https://github.com/kergoth/tslib/archive/1.1.tar.gz"
../fetchurl "http://www.directfb.org/downloads/Core/DirectFB-1.4/DirectFB-1.4.17.tar.gz"
../fetchurl "http://www.libsdl.org/release/SDL-1.2.15.tar.gz"
../fetchurl "http://ffmpeg.org/releases/ffmpeg-2.4.tar.gz"

export PKG_CONFIG_PATH="$TARGET_DIR/lib/pkgconfig"

echo "*** Building yasm ***"
cd $BUILD_DIR/yasm*
./configure --prefix=$TARGET_DIR
make -j $jval
make install

#sleep 5

echo "*** Building bzip2 ***"
cd $BUILD_DIR/bzip2*
make
make install PREFIX=$TARGET_DIR

#sleep 5

# Ogg before vorbis
echo "*** Building libogg ***"
cd $BUILD_DIR/libogg*
./configure --prefix=$TARGET_DIR --enable-static --disable-shared
make -j $jval
make install

#sleep 5

# Vorbis before theora
echo "*** Building libvorbis ***"
cd $BUILD_DIR/libvorbis*
./configure --prefix=$TARGET_DIR --enable-static --disable-shared
make -j $jval
make install

#sleep 5

echo "*** Building libtheora ***"
cd $BUILD_DIR/libtheora*
./configure --prefix=$TARGET_DIR --enable-static --disable-shared
make -j $jval
make install

#sleep 5

echo "*** Building livpx ***"
cd $BUILD_DIR/libvpx*
./configure --prefix=$TARGET_DIR --disable-shared
make -j $jval
make install

#sleep 5

echo "*** Building faac ***"
cd $BUILD_DIR/faac*
./configure --prefix=$TARGET_DIR --enable-static --disable-shared
# FIXME: gcc incompatibility, does not work with log()
sed -i -e "s|^char \*strcasestr.*|//\0|" common/mp4v2/mpeg4ip.h
make -j $jval
make install

#sleep 5

echo "*** Building x264 ***"
cd $BUILD_DIR/x264*
./configure --prefix=$TARGET_DIR --enable-static --disable-shared --disable-opencl
make -j $jval
make install

#sleep 5

echo "*** Building xvidcore ***"
cd "$BUILD_DIR/xvidcore/build/generic"
./configure --prefix=$TARGET_DIR --enable-static --disable-shared
make -j $jval
make install
rm -f "$TARGET_DIR"/lib/libxvidcore.so*

#sleep 5

echo "*** Building lame ***"
cd $BUILD_DIR/lame*
./configure --prefix=$TARGET_DIR --enable-static --disable-shared
make -j $jval
make install

#sleep 5

echo "*** Building opus ***"
cd $BUILD_DIR/opus*
./configure --prefix=$TARGET_DIR --enable-static --disable-shared
make -j $jval
make install

#sleep 5

echo "*** Building fdk-aac ***"
cd $BUILD_DIR
git clone https://github.com/mstorsjo/fdk-aac.git
cd $BUILD_DIR/fdk-aac*
if [ ! -f "configure" ]; then
  autoreconf -fiv
fi
./configure --prefix=$TARGET_DIR --enable-static --disable-shared
make -j $jval
make install

#sleep 5

echo "*** Building libpng ***"
cd $BUILD_DIR/libpng*
./configure --prefix=$TARGET_DIR --enable-static --disable-shared
make -j $jval
make install

#sleep 5

echo "*** Building zlib ***"
cd $BUILD_DIR/zlib*
./configure --prefix=$TARGET_DIR --static
make -j $jval
make install

#sleep 5

echo "*** Building openssl ***"
cd $BUILD_DIR/openssl*
./config --prefix=$TARGET_DIR no-shared
make
make install

#sleep 5

echo "*** Building rtmpdump ***"
cd $BUILD_DIR
git clone git://git.ffmpeg.org/rtmpdump
cd $BUILD_DIR/rtmpdump*
make SYS=posix CRYPTO=OPENSSL SHARED= prefix=$TARGET_DIR LIBZ="-lz -ldl" XLDFLAGS="-L$TARGET_DIR/lib" XCFLAGS="-I$TARGET_DIR/include"
make install SHARED= prefix=$TARGET_DIR

#sleep 5

echo "*** Building tslib ***"
cd $BUILD_DIR/tslib*
./configure --prefix=$TARGET_DIR --enable-static --disable-shared
make -j $jval
make install

#sleep 5

echo "*** Building directfb ***"
cd $BUILD_DIR/DirectFB*
./configure --prefix=$TARGET_DIR --enable-static --disable-shared
make -j $jval
make install

#sleep 5

echo "*** Building SDL ***"
cd $BUILD_DIR/SDL*
./configure --prefix=$TARGET_DIR --enable-static --disable-shared
make -j $jval
make install

#sleep 5

# FIXME: only OS-specific
#rm -f "$TARGET_DIR"/lib/*.dylib
rm -f "$TARGET_DIR"/lib/*.so

## Patch ffmpeg mov.c to prevent stuttering
## https://trac.ffmpeg.org/ticket/2513
echo "*** Patching FFmpeg mov.c ***"
cd "$ENV_ROOT"
patch -p1 < mov.c.patch

# FFMpeg
echo "*** Building FFmpeg ***"
cd $BUILD_DIR/ffmpeg*
CFLAGS="-I$TARGET_DIR/include" LDFLAGS="-L$TARGET_DIR/lib -lm -ldl" ./configure --prefix=${OUTPUT_DIR:-$TARGET_DIR} --extra-version=static --disable-debug --disable-shared --enable-static --extra-cflags=--static --enable-ffmpeg --disable-ffprobe --disable-ffserver --enable-ffplay --disable-doc --enable-gpl --enable-pthreads --enable-postproc --enable-gray --enable-runtime-cpudetect --enable-libfaac --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-bzlib --enable-zlib --enable-nonfree --enable-libfdk-aac --enable-version3 --enable-libvpx --disable-devices --enable-librtmp --enable-openssl
make -j $jval && make install