#!/bin/sh
# Copyright Loris Vincenzi (http://www.slacky.eu)
# All rights reserved.
#
# Heavily based on the Slackware 13.1 SlackBuild
# http://www.ffmpeg.org
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#
# Required: dirac, faac, jack-audio-connection-kit, lame, libdc1394, libgsm, libnut (Static)
# Required: libva, libvdpau, libvpx , opencore-amr, openjpeg, orc, rtmpdump (Static)
# Required: schroedinger, speex, x264, xvidcore
#
# 
#
# Exit on most errors
set -e


# Set variables:
CWD=`pwd`
OUTPUT=${OUTPUT:-$CWD}
PKGNAME=ffmpeg
TMP=${TMP:-/tmp/txz/$PKGNAME}
PKG=$TMP/package
VERSION=${VERSION:-0.6.2}
ARCH=${ARCH:-i686} # i686 or x86_64
JOBS=${JOBS:--j2}
BUILD=${BUILD:-1}
TAG=${TAG:-sl}

# Download sorce tarball if still not present
SOURCE="http://www.ffmpeg.org/releases/$PKGNAME-$VERSION.tar.bz2"

if [ ! -e $CWD/$PKGNAME-$VERSION.tar.bz2 ]; then
 wget $SOURCE
fi


# Set compiling FLAGS
if [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"; SLKLDFLAGS=""; LIBDIRSUFFIX=""; CHOST="i686"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"; SLKLDFLAGS="-L/usr/lib64"; LIBDIRSUFFIX="64"; CHOST="x86_64"
fi

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT

# Decompress the source tarball
cd $TMP
tar xjvf $CWD/$PKGNAME-$VERSION.tar.bz2

echo -e "\E[0;32m+-------------------------+\E[0;0m"
echo -e "\E[0;32m| Start SlackBuild FFmpeg |\E[0;0m"
echo -e "\E[0;32m+-------------------------+\E[0;0m"

# Adjust permissions and ownerships
cd $PKGNAME-$VERSION
chown -R root:root .
chmod -R u+w,go+r-w,a-s .

# Building FFmpeg  package
CPPFLAGS="-I/usr/include/vpx" \
LDFLAGS="$SLKLDFLAGS" \
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure --prefix=/usr \
--shlibdir=/usr/lib${LIBDIRSUFFIX} \
--libdir=/usr/lib${LIBDIRSUFFIX} \
--build-suffix=${LIBDIRSUFFIX} \
--mandir=/usr/man \
--disable-static \
--enable-shared \
--enable-gpl \
--enable-version3 \
--enable-nonfree \
--enable-postproc \
--enable-swscale \
--enable-avfilter \
--enable-avfilter-lavf \
--enable-pthreads \
--enable-x11grab \
--enable-bzlib \
--enable-libopencore-amrnb \
--enable-libopencore-amrwb \
--enable-version3 \
--enable-libdc1394 \
--enable-libdirac \
--enable-libfaac \
--enable-libfaad \
--enable-libfaadbin \
--enable-libgsm \
--enable-libmp3lame  \
--enable-libnut \
--enable-libopenjpeg \
--enable-librtmp \
--enable-libschroedinger \
--enable-libvpx \
--enable-libspeex \
--enable-libtheora \
--enable-libvorbis \
--enable-libx264 \
--enable-memalign-hack \
--enable-libxvid \
--enable-zlib \
--disable-debug \
--enable-vdpau \
--arch=${ARCH} \
$([ "${ARCH}" == 'i686' ] && echo '--disable-ssse3' '--disable-amd3dnowext' '--disable-mmx2')
echo -e "\E[0;32mPress any key to build the package!\E[0;0m"
read
make $JOBS
make install DESTDIR=$PKG


# Strip binaries and shared objects, if present
( cd $PKG
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs -r strip --strip-unneeded 2> /dev/null || true
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs -r strip --strip-unneeded 2> /dev/null || true
  find . | xargs file | grep "current ar archive" | cut -f 1 -d : | xargs -r strip --strip-unneeded 2> /dev/null || true
)


# Add documentation files: readme, changelog and so on
mkdir -p $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild
cp [A-Z]* doc/TODO doc/*.{html,txt} $PKG/usr/doc/$PKGNAME-$VERSION
chmod 644 $PKG/usr/doc/$PKGNAME-$VERSION/*


# Installing configuration file
install -m 644 -p -D doc/ffserver.conf  $PKG/etc/ffserver.conf.new



# Also add the slack-desk file and this slackbuild to the package
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh
cat $CWD/slack-desc > $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild/slack-desc
cat $CWD/$PKGNAME.SlackBuild > $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild/$PKGNAME.SlackBuild



# Compress the man pages if present
if [ -d $PKG/usr/man ]; then
    ( cd $PKG/usr/man
      find . -type f -exec gzip -9 {} \;
      for i in $( find . -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
    )
fi



# Find and print dependencies into slack-required file
cd $PKG
chown -R root:root $PKG
if [ -x /usr/bin/requiredbuilder ];then
requiredbuilder -y -v -s  $CWD $PKG
fi
# Create txz package
/sbin/makepkg -l y -c n $OUTPUT/$PKGNAME-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-txz}


# Cleanup if enabled
if [ "$1" = "--cleanup" ]; then
 rm -rf $TMP
fi