#!/bin/sh

# Slackware build script for ffmpeg

# Copyright 2010-2015 Heinz Wiesinger, Amsterdam, The Netherlands
# All rights reserved.
#
# 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.

# Originally written by core (eroc@linuxmail.org)
# Modified by Robby Workman <rworkman@slackbuilds.org>

PRGNAM=ffmpeg
VERSION=${VERSION:-2.6.3}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i486 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

# environment sanity checks
TEXI2HTML=$(which texi2html 2>/dev/null)

if [ "$TEXI2HTML" = "" ]; then
  echo "Could not find texi2html! Please make sure to have tetex or texlive installed"
  echo "and that texi2html is in PATH."
  exit 1
fi

# --enable-runtime-cpu is meant for libswscale only and
# has no influence on the other parts of ffmpeg so there's
# not really a point in bothering
PKGARCH=$(uname -m)_custom

# Configure ffmpeg features not autodetected by default
# Unfortunately ffmpeg's configure doesn't support --enable-feature=yes
# syntax, so we have to do it the complicated way :/

mp3lame=""    ; [ "${LAME:-no}" != "no" ]         && mp3lame="--enable-libmp3lame"
libx264=""    ; [ "${X264:-no}" != "no" ]         && libx264="--enable-libx264"
libcelt=""    ; [ "${CELT:-no}" != "no" ]         && libcelt="--enable-libcelt"
libdc1394=""  ; [ "${DC1394:-no}" != "no" ]       && libdc1394="--enable-libdc1394"
libfrei0r=""  ; [ "${FREI0R:-no}" != "no" ]       && libfrei0r="--enable-frei0r"
libgsm=""     ; [ "${GSM:-no}" != "no" ]          && libgsm="--enable-libgsm"
librtmp=""    ; [ "${RTMP:-no}" != "no" ]         && librtmp="--enable-librtmp"
dirac_fast="" ; [ "${SCHROEDINGER:-no}" != "no" ] && dirac_fast="--enable-libschroedinger"
libspeex=""   ; [ "${SPEEX:-no}" != "no" ]        && libspeex="--enable-libspeex"
libvpx=""     ; [ "${VPX:-no}" != "no" ]          && libvpx="--enable-libvpx"
libxvid=""    ; [ "${XVID:-no}" != "no" ]         && libxvid="--enable-libxvid"
libbluray=""  ; [ "${BLURAY:-no}" != "no" ]       && libbluray="--enable-libbluray"
libass=""     ; [ "${ASS:-no}" != "no" ]          && libass="--enable-libass"
libopenal=""  ; [ "${OPENAL:-no}" != "no" ]       && libopenal="--enable-openal"
libiec61883=""; [ "${IEC61883:-no}" != "no" ]     && libiec61883="--enable-libiec61883"
libilbc=""    ; [ "${ILBC:-no}" != "no" ]         && libilbc="--enable-libilbc"
libmodplug="" ; [ "${MODPLUG:-no}" != "no" ]      && libmodplug="--enable-libmodplug"
libopus=""    ; [ "${OPUS:-no}" != "no" ]         && libopus="--enable-libopus"
libtwolame="" ; [ "${TWOLAME:-no}" != "no" ]      && libtwolame="--enable-libtwolame"
ladspa=""     ; [ "${LADSPA:-no}" != "no" ]       && ladspa="--enable-ladspa"
pulse=""      ; [ "${PULSEAUDIO:-no}" != "no" ]   && pulse="--enable-libpulse"
libflite=""   ; [ "${FLITE:-no}" != "no" ]        && libflite="--enable-libflite"
libquvi=""    ; [ "${QUVI:-no}" != "no" ]         && libquvi="--enable-libquvi"
libvidstab="" ; [ "${VIDSTAB:-no}" != "no" ]      && libvidstab="--enable-libvidstab"
libx265=""    ; [ "${X265:-no}" != "no" ]         && libx265="--enable-libx265"
libzvbi=""    ; [ "${ZVBI:-no}" != "no" ]         && libzvbi="--enable-libzvbi"
libopencv=""  ; [ "${OPENCV:-no}" != "no" ]       && libopencv="--enable-libopencv"
#opencl="";      [ "${OPENCL:-no}" != "no" ]       && opencl="--enable-opencl"

opencore_amr="" ; [ "${OPENCORE:-no}" != "no" ] && \
  opencore_amr="--enable-libopencore-amrnb --enable-libopencore-amrwb"
libfaac=""      ; [ "${FAAC:-no}" != "no" ]     && \
  { libfaac="--enable-libfaac" ; non_free="--enable-nonfree" ; }
fdk=""        ; [ "${FDK_AAC:-no}" != "no" ]      && \
  { fdk="--enable-libfdk-aac"; non_free="--enable-nonfree" ; }
ssl=""      ; [ "${OPENSSL:-no}" != "no" ]     && \
  { ssl="--enable-openssl" ; non_free="--enable-nonfree" ; }
openjpeg=""     ; [ "${JP2:-no}" != "no" ]      && \
  { openjpeg="--enable-libopenjpeg" ; \
    SLKCFLAGS="$SLKCFLAGS -I/usr/include/openjpeg-1.5" ; }

# zeromq support requires zeromq > 3.x
#libzmq=""     ; [ "${ZMQ:-no}" != "no" ]          && libzmq="--enable-libzmq"

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.bz2
cd $PRGNAM-$VERSION
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
 -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

# Fix linking with flite
sed -i "s| -lflite\"| -lflite -lm -lasound\"|" \
  ./configure

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --shlibdir=/usr/lib${LIBDIRSUFFIX} \
  --docdir=/usr/doc/$PRGNAM-$VERSION/html \
  --mandir=/usr/man \
  --disable-debug \
  --enable-shared \
  --disable-static \
  --enable-pthreads \
  --enable-libtheora \
  --enable-libvorbis \
  --enable-gpl \
  --enable-version3 \
  --enable-postproc \
  --enable-swscale \
  --enable-x11grab \
  --enable-avfilter \
  --enable-gnutls \
  --enable-libcdio \
  --enable-libssh \
  --enable-libcaca \
  --enable-libsmbclient \
  --enable-opengl \
  --arch=$ARCH \
  $openjpeg \
  $libdc1394 \
  $mp3lame \
  $libfaac \
  $libxvid \
  $libx264 \
  $libspeex \
  $dirac_fast \
  $non_free \
  $libgsm \
  $libvpx \
  $librtmp \
  $opencore_amr \
  $libfrei0r \
  $libcelt \
  $libbluray \
  $libass \
  $libopenal \
  $libiec61883 \
  $libilbc \
  $libmodplug \
  $libopus \
  $libtwolame \
  $ladspa \
  $pulse \
  $fdk \
  $libflite \
  $libquvi \
  $libvidstab \
  $libx265 \
  $libzvbi \
  $libopencv \
  $ssl

make
make install DESTDIR=$PKG
make install-man DESTDIR=$PKG

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | \
  grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

find $PKG/usr/man -type f -exec gzip -9 {} \;

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/txt
cp -a Changelog COPYING* CREDITS INSTALL* LICENSE* MAINTAINERS README* RELEASE \
  VERSION $PKG/usr/doc/$PRGNAM-$VERSION
cp -a doc/*.txt $PKG/usr/doc/$PRGNAM-$VERSION/txt/
find . -name "RELEASE_NOTES" -exec cp -a {} $PKG/usr/doc/$PRGNAM-$VERSION/ \;
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$PKGARCH-$BUILD$TAG.${PKGTYPE:-tgz}