#!/usr/bin/env bash

################################################################################

# ffmpeg windows cross compile helper/downloader script

################################################################################

# Copyright (C)  Roger Pack

#

# This program is free software: you can redistribute it and/or modify it under

# the terms of the GNU General Public License as published by the Free Software

# Foundation, either version  of the License, or (at your option) any later

# version.

#

# This program is distributed in the hope that it will be useful, but WITHOUT

# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more

# details.

#

# You should have received a copy of the GNU General Public License along with

# this program.  If not, see <http://www.gnu.org/licenses/>.

#

# The GNU General Public License can be found in the LICENSE file.

yes_no_sel () {

unset user_input

local question="$1"

shift

while [[ "$user_input" != [YyNn] ]]; do

  echo -n "$question"

  read user_input

  if [[ "$user_input" != [YyNn] ]]; then

    clear; echo 'Your selection was not vaild, please try again.'; echo

  fi

done

# downcase it

user_input=$(echo $user_input | tr '[A-Z]' '[a-z]')

}

check_missing_packages () {

local check_packages=('curl' 'pkg-config' 'make' 'git' 'svn' 'cmake' 'gcc' 'autoconf' 'libtool' 'automake' 'yasm' 'cvs' 'flex' 'bison' 'makeinfo')

for package in "${check_packages[@]}"; do

  type -P "$package" >/dev/null || missing_packages=("$package" "${missing_packages[@]}")

done

if [[ -n "${missing_packages[@]}" ]]; then

  clear

  echo "Could not find the following execs: ${missing_packages[@]}"

  echo 'Install the missing packages before running this script.'

  exit

fi

local out=`cmake --version` # like cmake version 2.8.

local version_have=`echo "$out" | cut -d " " -f `

function version { echo "$@" | awk -F. '{ printf("%d%03d%03d%03d\n", $1,$2,$3,$4); }'; }

if [[ $(version $version_have)  < $(version '2.8.10') ]]; then

  echo "your cmake version is too old $version_have wanted 2.8.10"

  exit

fi

}

cur_dir="$(pwd)/sandbox"

cpu_count="$(grep -c processor /proc/cpuinfo)" # linux only <sigh>

if [ -z "$cpu_count" ]; then

  cpu_count=`sysctl -n hw.ncpu | tr -d '\n'` # OS X

  if [ -z "$cpu_count" ]; then

    echo "warning, unable to determine cpu count, defaulting to 1"

    cpu_count= # boxes where we don't know how to determine cpu count [OS X for instance], default to just 1, instead of blank, which means infinite

  fi

fi

original_cpu_count=$cpu_count # save it away for some that revert it temporarily

intro() {

  cat <<EOL

     ##################### Welcome ######################

  Welcome to the ffmpeg cross-compile builder-helper script.

  Downloads and builds will be installed to directories within $cur_dir

  If this is not ok, then exit now, and cd to the directory where you'd

  like them installed, then run this script again from there.

  NB that once you build your compilers, you can no longer rename/move

  the sandbox directory, since it will have some hard coded paths in there.

  You can, of course, rebuild ffmpeg from within it, etc.

EOL

  if [[ $sandbox_ok != 'y' ]]; then

    yes_no_sel "Is ./sandbox ok (requires ~ 5GB space) [y/n]?"

    if [[ "$user_input" = "n" ]]; then

      exit

    fi

  fi

  mkdir -p "$cur_dir"

  cd "$cur_dir"

  if [[ $disable_nonfree = "y" ]]; then

    non_free="n"

  else

    yes_no_sel "Would you like to include non-free (non GPL compatible) libraries, like many aac encoders

The resultant binary will not be distributable, but might be useful for in-house use. Include non-free [y/n]?"

    non_free="$user_input" # save it away

  fi

  #yes_no_sel "Would you like to compile with -march=native, which can get a few percent speedup

#but also makes it so you cannot distribute the binary to machines of other architecture/cpu

#(also note that you should only enable this if compiling on a VM on the same box you intend to target, otherwise

#it makes no sense)  Use march=native? THIS IS JUST EXPERIMENTAL AND DOES NOT WORK FULLY YET--choose n typically. [y/n]?"

  #march_native="$user_input"

}

pick_compiler_flavors() {

while [[ "$build_choice" != [-] ]]; do

if [[ -n "${unknown_opts[@]}" ]]; then

  echo -n 'Unknown option(s)'

  for unknown_opt in "${unknown_opts[@]}"; do

    echo -n " '$unknown_opt'"

  done

  echo ', ignored.'; echo

fi

cat <<'EOF'

What version of MinGW-w64 would you like to build or update?

  . Both Win32 and Win64

  . Win32 (-bit only)

  . Win64 (-bit only)

  . Exit

EOF

echo -n 'Input your choice [1-5]: '

read build_choice

done

case "$build_choice" in

   ) build_choice=multi ;;

   ) build_choice=win32 ;;

   ) build_choice=win64 ;;

   ) exit  ;;

  * ) clear;  echo 'Your choice was not valid, please try again.'; echo ;;

esac

}

install_cross_compiler() {

  if [[ -f "mingw-w64-i686/compiler.done" || -f "mingw-w64-x86_64/compiler.done" ]]; then

   echo "MinGW-w64 compiler of some type or other already installed, not re-installing..."

   if [[ $rebuild_compilers != "y" ]]; then

     return # early exit

   fi

  fi

  pick_compiler_flavors

  curl https://raw.github.com/rdp/ffmpeg-windows-build-helpers/master/patches/mingw-w64-build-3.2.0 -O  || exit 1

  chmod u+x mingw-w64-build-3.2.

  # requires mingw-w64 svn: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55706

  # cpu count  because otherwise with  MB RAM it can segfault ?

  nice ./mingw-w64-build-3.2. --mingw-w64-ver=svn --disable-shared --default-configure --clean-build --cpu-count= --threads=pthreads-w32 --pthreads-w32-ver=-- --build-type=$build_choice || exit  # --disable-shared allows c++ to be distributed at all...which seemed necessary for some random dependency...

  if [ -d mingw-w64-x86_64 ]; then

    touch mingw-w64-x86_64/compiler.done

  fi

  if [ -d mingw-w64-i686 ]; then

    touch mingw-w64-i686/compiler.done

  fi

  clear

  echo "Ok, done building MinGW-w64 cross-compiler..."

}

setup_env() {

  export PKG_CONFIG_LIBDIR= # disable pkg-config from reverting back to and finding system installed packages [yikes]

}

do_svn_checkout() {

  repo_url="$1"

  to_dir="$2"

  if [ ! -d $to_dir ]; then

    echo "svn checking out to $to_dir"

    svn checkout $repo_url $to_dir.tmp || exit

    mv $to_dir.tmp $to_dir

  else

    cd $to_dir

    echo "not svn Updating $to_dir since usually svn repo's aren't frequently updated..."

    # svn up

    cd ..

  fi

}

update_to_desired_branch_or_revision() {

  local to_dir="$1"

  local desired_branch="$2"

  if [ -n "$desired_branch" ]; then

   pushd $to_dir

   cd $to_dir

      echo "git co $desired_branch"

      git checkout  "$desired_branch" || exit

      git merge "$desired_branch" || exit  # depending on which type it is :)

   popd # in case it's a cd to ., don't want to cd to .. here...

  fi

}

do_git_checkout() {

  local repo_url="$1"

  local to_dir="$2"

  local desired_branch="$3"

  if [ ! -d $to_dir ]; then

    echo "Downloading (via git clone) $to_dir"

    # prevent partial checkouts by renaming it only after success

    git clone $repo_url $to_dir.tmp || exit

    mv $to_dir.tmp $to_dir

    echo "done downloading $to_dir"

    update_to_desired_branch_or_revision $to_dir $desired_branch

  else

    cd $to_dir

    echo "Updating to latest $to_dir version..."

    old_git_version=`git rev-parse HEAD`

    git pull # if you comment out, add an echo :)

    update_to_desired_branch_or_revision "." $desired_branch

    new_git_version=`git rev-parse HEAD`

    if [[ "$old_git_version" != "$new_git_version" ]]; then

     echo "got upstream changes, forcing re-configure."

     rm already*

    else

     echo "this pull got no new upstream changes, possibly not forcing re-configure..."

    fi

    cd ..

  fi

}

get_small_touchfile_name() { # have to call with assignment like a=$(get_small...)

  local beginning="$1"

  local extra_stuff="$2"

  local touch_name="${beginning}_$(echo -- $extra_stuff | /usr/bin/env md5sum)" # make it smaller

  touch_name=$(echo $touch_name | sed "s/ //g") # md5sum introduces spaces, remove them

  echo $touch_name # bash cruddy return system LOL

} 

do_configure() {

  local configure_options="$1"

  local configure_name="$2"

  if [[ "$configure_name" = "" ]]; then

    configure_name="./configure"

  fi

  local cur_dir2=$(pwd)

  local english_name=$(basename $cur_dir2)

  local touch_name=$(get_small_touchfile_name already_configured "$configure_options")

  if [ ! -f "$touch_name" ]; then

    make clean # just in case

    #make uninstall # does weird things when run under ffmpeg src

    if [ -f bootstrap.sh ]; then

      ./bootstrap.sh

    fi

    rm -f already_* # reset

    echo "configuring $english_name as $ PATH=$PATH $configure_name $configure_options"

    nice "$configure_name" $configure_options || exit

    touch -- "$touch_name"

    make clean # just in case

  else

    echo "already configured $(basename $cur_dir2)"

  fi

}

do_make() {

  local extra_make_options="$1 -j $cpu_count"

  local cur_dir2=$(pwd)

  local touch_name=$(get_small_touchfile_name already_ran_make "$extra_make_options")

  if [ ! -f $touch_name ]; then

    echo "making $cur_dir2 as $ PATH=$PATH make $extra_make_options"

    nice make $extra_make_options || exit

    touch $touch_name

  else

    echo "already did make $(basename "$cur_dir2")"

  fi

}

do_make_install() {

  local extra_make_options="$1"

  do_make "$extra_make_options"

  local touch_name=$(get_small_touchfile_name already_ran_make_install "$extra_make_options")

  if [ ! -f $touch_name ]; then

    echo "make installing $cur_dir2 as $ PATH=$PATH make install $extra_make_options"

    nice make install $extra_make_options || exit

    touch $touch_name

  fi

}

build_x264() {

  #do_git_checkout "git://git.videolan.org/x264.git" "x264" "origin/stable"

  cd x264

  # TODO remove the no-aggressive-loop ... should be unneeded now

  do_configure "--extra-cflags=-fno-aggressive-loop-optimizations --host=$host_target  --enable-shared --disable-cli --disable-asm --cross-prefix=$cross_prefix --prefix=$mingw_w64_x86_64_prefix --enable-win32thread" # --enable-win32thread --enable-debug shouldn't hurt us since ffmpeg strips it anyway

# no-aggressive ref: https://ffmpeg.org/trac/ffmpeg/ticket/2310

  # TODO more march=native here?

  # rm -f already_ran_make # just in case the git checkout did something, re-make

  do_make_install

  cd ..

}

build_librtmp() {

  #  download_and_unpack_file http://rtmpdump.mplayerhq.hu/download/rtmpdump-2.3.tgz rtmpdump-2.3 # has some odd configure failure

  #  cd rtmpdump-2.3/librtmp

  do_git_checkout "http://repo.or.cz/r/rtmpdump.git" rtmpdump_git 883c33489403ed360a01d1a47ec76d476525b49e # trunk didn't build once...this one i sstable

  cd rtmpdump_git/librtmp

  do_make_install "CRYPTO=GNUTLS OPT=-O2 CROSS_COMPILE=$cross_prefix SHARED=no prefix=$mingw_w64_x86_64_prefix"

  #make install CRYPTO=GNUTLS OPT='-O2 -g' "CROSS_COMPILE=$cross_prefix" SHARED=no "prefix=$mingw_w64_x86_64_prefix" || exit

  sed -i 's/-lrtmp -lz/-lrtmp -lwinmm -lz/' "$PKG_CONFIG_PATH/librtmp.pc"

  cd ../..

}

build_libsoxr() {

  download_and_unpack_file http://sourceforge.net/projects/soxr/files/soxr-0.1.0-Source.tar.xz soxr-0.1.0-Source # not /download since apparently some tar's can't untar it without an extension?

  cd soxr-0.1.-Source

    cmake . -DENABLE_STATIC_RUNTIME= -DCMAKE_SYSTEM_NAME=Windows -DCMAKE_RANLIB=${cross_prefix}ranlib -DCMAKE_C_COMPILER=${cross_prefix}gcc -DCMAKE_CXX_COMPILER=${cross_prefix}g++ -DCMAKE_RC_COMPILER=${cross_prefix}windres  -DCMAKE_INSTALL_PREFIX=$mingw_w64_x86_64_prefix -DHAVE_WORDS_BIGENDIAN_EXITCODE=  -DBUILD_SHARED_LIBS:bool=off || exit

    # BUILD_TESTS:BOOL=ON instead of the below?

    rm -rf tests # disable tests. Is there another way?

    mkdir tests

    touch tests/CMakeLists.txt

    do_make_install

  cd ..

}

build_libxavs() {

  do_svn_checkout https://xavs.svn.sourceforge.net/svnroot/xavs/trunk xavs

  cd xavs

    export LDFLAGS='-lm'

    generic_configure "--cross-prefix=$cross_prefix" # see https://github.com/rdp/ffmpeg-windows-build-helpers/issues/3

    unset LDFLAGS

    do_make_install "CC=$(echo $cross_prefix)gcc AR=$(echo $cross_prefix)ar PREFIX=$mingw_w64_x86_64_prefix RANLIB=$(echo $cross_prefix)ranlib STRIP=$(echo $cross_prefix)strip"

  cd ..

}

build_libopenjpeg() {

  download_and_unpack_file http://openjpeg.googlecode.com/files/openjpeg_v1_4_sources_r697.tgz openjpeg_v1_4_sources_r697

  cd openjpeg_v1_4_sources_r697

  generic_configure

  sed -i "s/\/usr\/lib/\$\(libdir\)/" Makefile # install pkg_config to the right dir...

  cpu_count= # this one can't build multi-threaded <sigh> kludge

  do_make_install

  cpu_count=$original_cpu_count

  cd .. 

  #download_and_unpack_file http://openjpeg.googlecode.com/files/openjpeg-2.0.0.tar.gz openjpeg-2.0.0

  #cd openjpeg-2.0.

  # cmake .  -DCMAKE_SYSTEM_NAME=Windows -DCMAKE_RANLIB=${cross_prefix}ranlib -DCMAKE_C_COMPILER=${cross_prefix}gcc -DCMAKE_CXX_COMPILER=${cross_prefix}g++ -DCMAKE_RC_COMPILER=${cross_prefix}windres  -DCMAKE_INSTALL_PREFIX=$mingw_w64_x86_64_prefix -DBUILD_SHARED_LIBS:bool=off

  # do_make_install

  # cp $mingw_w64_x86_64_prefix/lib/libopenjp2.a $mingw_w64_x86_64_prefix/lib/libopenjpeg.a || exit

  # cp $mingw_w64_x86_64_prefix/include/openjpeg-2.0/* $mingw_w64_x86_64_prefix/include || exit 1

  #cd ..

}

build_libvpx() {

  do_git_checkout https://git.chromium.org/git/webm/libvpx.git "libvpx_git" 2d13e7b33e1ee

  cd libvpx_git

  export CROSS="$cross_prefix"

  if [[ "$bits_target" = "32" ]]; then

    do_configure "--extra-cflags=-DPTW32_STATIC_LIB --target=x86-win32-gcc --prefix=$mingw_w64_x86_64_prefix --enable-static --disable-shared"

  else

    do_configure "--extra-cflags=-DPTW32_STATIC_LIB --target=x86_64-win64-gcc --prefix=$mingw_w64_x86_64_prefix --enable-static --disable-shared "

  fi

  do_make_install

  unset CROSS

  cd ..

}

apply_patch() {

 local url=$1

 local patch_name=$(basename $url)

 local patch_done_name="$patch_name.done"

 if [[ ! -e $patch_done_name ]]; then

   curl $url -O || exit 1

   patch -p0 < "$patch_name" || exit 1

   touch $patch_done_name

 else

   echo "patch $patch_name already applied"

 fi

}

build_libutvideo() {

  download_and_unpack_file https://github.com/downloads/rdp/FFmpeg/utvideo-11.1.1-src.zip utvideo-11.1.1

  cd utvideo-11.1.1

    apply_patch https://raw.github.com/rdp/ffmpeg-windows-build-helpers/master/patches/utv.diff

    do_make_install "CROSS_PREFIX=$cross_prefix DESTDIR=$mingw_w64_x86_64_prefix prefix=" # prefix= to avoid it adding an extra /usr/local to it yikes

  cd ..

}

download_and_unpack_file() {

  url="$1"

  output_name=$(basename $url)

  output_dir="$2"

  if [ ! -f "$output_dir/unpacked.successfully" ]; then

    curl "$url" -O -L || exit 1

    tar -xf "$output_name" || unzip $output_name || exit 1

    touch "$output_dir/unpacked.successfully" || exit 1

    rm "$output_name"

  fi

}

generic_configure() {

  local extra_configure_options="$1"

  do_configure "--host=$host_target --prefix=$mingw_w64_x86_64_prefix --disable-shared --enable-static $extra_configure_options"

}

# needs 2 parameters currently

generic_download_and_install() {

  local url="$1"

  local english_name="$2"

  local extra_configure_options="$3"

  download_and_unpack_file $url $english_name

  cd $english_name || exit "needs 2 parameters"

  generic_configure_make_install $extra_configure_options

  cd ..

}

generic_configure_make_install() {

  generic_configure $1

  do_make_install

}

build_libilbc() {

  do_git_checkout https://github.com/dekkers/libilbc.git libilbc_git

  cd libilbc_git

  if [[ ! -f "configure" ]]; then

    autoreconf -fiv

  fi

  generic_configure_make_install

  cd ..

}

build_libflite() {

  download_and_unpack_file http://www.speech.cs.cmu.edu/flite/packed/flite-1.4/flite-1.4-release.tar.bz2 flite-1.4-release

  cd flite-1.4-release

   apply_patch https://raw.github.com/rdp/ffmpeg-windows-build-helpers/master/patches/flite_64.diff

   sed -i "s|i386-mingw32-|$cross_prefix|" configure*

   generic_configure

   do_make

   make install # it fails in error...

   if [[ "$bits_target" = "32" ]]; then

     cp ./build/i386-mingw32/lib/*.a $mingw_w64_x86_64_prefix/lib || exit 1

   else

     cp ./build/x86_64-mingw32/lib/*.a $mingw_w64_x86_64_prefix/lib || exit 1

   fi

  cd ..

}

build_libgsm() {

  download_and_unpack_file http://www.quut.com/gsm/gsm-1.0.13.tar.gz gsm-1.0-pl13

  cd gsm-1.0-pl13

  make CC=${cross_prefix}gcc AR=${cross_prefix}ar RANLIB=${cross_prefix}ranlib INSTALL_ROOT=${mingw_w64_x86_64_prefix} # fails, but in a way we expect (toast.c) LODO fix somehow?

  cp lib/libgsm.a $mingw_w64_x86_64_prefix/lib || exit 1

  mkdir -p $mingw_w64_x86_64_prefix/include/gsm

  cp inc/gsm.h $mingw_w64_x86_64_prefix/include/gsm || exit 1

  cd ..

}

build_libopus() {

  generic_download_and_install http://downloads.xiph.org/releases/opus/opus-1.0.1.tar.gz opus-1.0.1

}

build_libopencore() {

  generic_download_and_install http://sourceforge.net/projects/opencore-amr/files/opencore-amr/opencore-amr-0.1.3.tar.gz/download opencore-amr-0.1.3

  generic_download_and_install http://sourceforge.net/projects/opencore-amr/files/vo-amrwbenc/vo-amrwbenc-0.1.2.tar.gz/download vo-amrwbenc-0.1.2

}

build_win32_pthreads() {

  download_and_unpack_file ftp://sourceware.org/pub/pthreads-win32/pthreads-w32-2-9-1-release.tar.gz   pthreads-w32-2-9-1-release

  cd pthreads-w32-2-9-1-release

    do_make "clean GC-static CROSS=$cross_prefix"

    cp libpthreadGC2.a $mingw_w64_x86_64_prefix/lib/libpthread.a || exit 1

    cp pthread.h sched.h semaphore.h $mingw_w64_x86_64_prefix/include || exit 1

  cd ..

}

build_libdl() {

  #download_and_unpack_file http://dlfcn-win32.googlecode.com/files/dlfcn-win32-r19.tar.bz2 dlfcn-win32-r19

  do_svn_checkout http://dlfcn-win32.googlecode.com/svn/trunk/ dlfcn-win32

  cd dlfcn-win32

    ./configure --disable-shared --enable-static --cross-prefix=$cross_prefix --prefix=$mingw_w64_x86_64_prefix

    do_make_install

  cd ..

}

build_libogg() {

  generic_download_and_install http://downloads.xiph.org/releases/ogg/libogg-1.3.0.tar.gz libogg-1.3.0

}

build_libvorbis() {

  generic_download_and_install http://downloads.xiph.org/releases/vorbis/libvorbis-1.2.3.tar.gz libvorbis-1.2.3

}

build_libspeex() {

  generic_download_and_install http://downloads.xiph.org/releases/speex/speex-1.2rc1.tar.gz speex-1.2rc1

}  

build_libtheora() {

  cpu_count=1 # can't handle it

  generic_download_and_install http://downloads.xiph.org/releases/theora/libtheora-1.1.1.tar.bz2 libtheora-1.1.1

  cpu_count=$original_cpu_count

}

build_libfribidi() {

  # generic_download_and_install http://fribidi.org/download/fribidi-0.19.5.tar.bz2 fribidi-0.19.5 # got report of still failing?

  download_and_unpack_file http://fribidi.org/download/fribidi-0.19.4.tar.bz2 fribidi-0.19.4

  cd fribidi-0.19.4

    # make it export symbols right...

    apply_patch https://raw.github.com/rdp/ffmpeg-windows-build-helpers/master/patches/fribidi.diff

    generic_configure

    do_make_install

  cd ..

  #do_git_checkout http://anongit.freedesktop.org/git/fribidi/fribidi.git fribidi_git

  #cd fribidi_git

  #  ./bootstrap # couldn't figure out how to make this work...

  #  generic_configure

  #  do_make_install

  #cd ..

}

build_libass() {

  generic_download_and_install http://libass.googlecode.com/files/libass-0.10.1.tar.gz libass-0.10.1

  sed -i 's/-lass -lm/-lass -lfribidi -lm/' "$PKG_CONFIG_PATH/libass.pc"

}

build_gmp() {

  download_and_unpack_file ftp://ftp.gnu.org/gnu/gmp/gmp-5.0.5.tar.bz2 gmp-5.0.5

  cd gmp-5.0.5

    generic_configure "ABI=$bits_target"

    do_make_install

  cd ..

}

build_orc() {

  generic_download_and_install  http://code.entropywave.com/download/orc/orc-0.4.16.tar.gz orc-0.4.16

}

build_libbluray() {

  generic_download_and_install ftp://ftp.videolan.org/pub/videolan/libbluray/0.2.3/libbluray-0.2.3.tar.bz2 libbluray-0.2.3

}

build_libschroedinger() {

  download_and_unpack_file http://diracvideo.org/download/schroedinger/schroedinger-1.0.11.tar.gz schroedinger-1.0.11

  cd schroedinger-1.0.11

    generic_configure

    sed -i 's/testsuite//' Makefile

    do_make_install

    sed -i 's/-lschroedinger-1.0$/-lschroedinger-1.0 -lorc-0.4/' "$PKG_CONFIG_PATH/schroedinger-1.0.pc" # yikes!

  cd ..

}

build_gnutls() {

  download_and_unpack_file ftp://ftp.gnu.org/gnu/gnutls/gnutls-3.0.22.tar.xz gnutls-3.0.22

  cd gnutls-3.0.22

    generic_configure "--disable-cxx" # don't need the c++ version, in an effort to cut down on size... LODO test difference...

    do_make_install

  cd ..

  sed -i 's/-lgnutls *$/-lgnutls -lnettle -lhogweed -lgmp -lcrypt32 -lws2_32/' "$PKG_CONFIG_PATH/gnutls.pc"

}

build_libnettle() {

  generic_download_and_install http://www.lysator.liu.se/~nisse/archive/nettle-2.5.tar.gz nettle-2.5

}

build_bzlib2() {

  download_and_unpack_file http://www.bzip.org/1.0.6/bzip2-1.0.6.tar.gz bzip2-1.0.6

  cd bzip2-1.0.6

    apply_patch https://raw.github.com/rdp/ffmpeg-windows-build-helpers/master/patches/bzip2_cross_compile.diff

    do_make "CC=$(echo $cross_prefix)gcc AR=$(echo $cross_prefix)ar PREFIX=$mingw_w64_x86_64_prefix RANLIB=$(echo $cross_prefix)ranlib libbz2.a bzip2 bzip2recover install"

  cd ..

}

build_zlib() {

  download_and_unpack_file http://zlib.net/zlib-1.2.8.tar.gz zlib-1.2.8

  cd zlib-1.2.8

    do_configure "--static --prefix=$mingw_w64_x86_64_prefix"

    do_make_install "CC=$(echo $cross_prefix)gcc AR=$(echo $cross_prefix)ar RANLIB=$(echo $cross_prefix)ranlib"

  cd ..

}

build_libxvid() {

  download_and_unpack_file http://downloads.xvid.org/downloads/xvidcore-1.3.2.tar.gz xvidcore

  cd xvidcore/build/generic

  if [ "$bits_target" = "64" ]; then

    local config_opts="--build=x86_64-unknown-linux-gnu --disable-assembly" # kludgey work arounds for 64 bit

  fi

  do_configure "--host=$host_target --prefix=$mingw_w64_x86_64_prefix $config_opts" # no static option...

  sed -i "s/-mno-cygwin//" platform.inc # remove old compiler flag that now apparently breaks us

  do_make_install

  cd ../../..

  # force a static build after the fact

  if [[ -f "$mingw_w64_x86_64_prefix/lib/xvidcore.dll" ]]; then

    rm $mingw_w64_x86_64_prefix/lib/xvidcore.dll || exit 1

    mv $mingw_w64_x86_64_prefix/lib/xvidcore.a $mingw_w64_x86_64_prefix/lib/libxvidcore.a || exit 1

  fi

}

build_fontconfig() {

  download_and_unpack_file http://www.freedesktop.org/software/fontconfig/release/fontconfig-2.10.1.tar.gz fontconfig-2.10.1

  cd fontconfig-2.10.1

    generic_configure --disable-docs

    do_make_install

  cd ..

  sed -i 's/-L${libdir} -lfontconfig[^l]*$/-L${libdir} -lfontconfig -lfreetype -lexpat/' "$PKG_CONFIG_PATH/fontconfig.pc"

}

build_libaacplus() {

  #download_and_unpack_file http://217.20.164.161/~tipok/aacplus/libaacplus-2.0.2.tar.gz libaacplus-2.0.2

  cd libaacplus-2.0.2

    if [[ ! -f configure ]]; then

     ./autogen.sh --fail-early

    fi

    generic_configure_make_install

  cd ..

}

build_openssl() {

  #download_and_unpack_file http://www.openssl.org/source/openssl-1.0.1c.tar.gz openssl-1.0.1c

  cd openssl-1.0.1c

  export cross="$cross_prefix"

  export CC="${cross}gcc"

  export AR="${cross}ar"

  export RANLIB="${cross}ranlib"

  if [ "$bits_target" = "32" ]; then

    do_configure "--prefix=$mingw_w64_x86_64_prefix no-shared mingw" ./Configure

  else

    do_configure "--prefix=$mingw_w64_x86_64_prefix no-shared mingw64" ./Configure

  fi

  do_make_install

  unset cross

  unset CC

  unset AR

  unset RANLIB

  cd ..

}

build_fdk_aac() {

  #generic_download_and_install http://sourceforge.net/projects/opencore-amr/files/fdk-aac/fdk-aac-0.1.0.tar.gz/download fdk-aac-0.1.0

  do_git_checkout https://github.com/mstorsjo/fdk-aac.git fdk-aac_git

  cd fdk-aac_git

    if [[ ! -f "configure" ]]; then

      autoreconf -fiv

    fi

    generic_configure_make_install

  cd ..

}

build_libexpat() {

  generic_download_and_install http://sourceforge.net/projects/expat/files/expat/2.1.0/expat-2.1.0.tar.gz/download expat-2.1.0

}

build_iconv() {

  generic_download_and_install http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.14.tar.gz libiconv-1.14

}

build_freetype() {

  generic_download_and_install http://download.savannah.gnu.org/releases/freetype/freetype-2.4.10.tar.gz freetype-2.4.10

}

build_vo_aacenc() {

  generic_download_and_install http://sourceforge.net/projects/opencore-amr/files/vo-aacenc/vo-aacenc-0.1.2.tar.gz/download vo-aacenc-0.1.2

}

build_sdl() {

  # apparently ffmpeg expects prefix-sdl-config not sdl-config that they give us, so rename...

  export CFLAGS=-DDECLSPEC=  # avoid trac tickets 939 and 282

  generic_download_and_install http://www.libsdl.org/release/SDL-1.2.15.tar.gz SDL-1.2.15

  unset CFLAGS

  mkdir temp

  cd temp # so paths will work out right

  local prefix=$(basename $cross_prefix)

  local bin_dir=$(dirname $cross_prefix)

  sed -i "s/-mwindows//" "$mingw_w64_x86_64_prefix/bin/sdl-config" # allow ffmpeg to output anything

  sed -i "s/-mwindows//" "$PKG_CONFIG_PATH/sdl.pc"

  cp "$mingw_w64_x86_64_prefix/bin/sdl-config" "$bin_dir/${prefix}sdl-config" # this is the only one in the PATH so use it for now

  cd ..

  rmdir temp

}

build_faac() {

  generic_download_and_install http://downloads.sourceforge.net/faac/faac-1.28.tar.gz faac-1.28 "--with-mp4v2=no"

}

build_lame() {

  generic_download_and_install http://sourceforge.net/projects/lame/files/lame/3.99/lame-3.99.5.tar.gz/download lame-3.99.5

}

build_frei0r() {

  #download_and_unpack_file http://www.piksel.no/frei0r/releases/frei0r-plugins-1.3.tar.gz frei0r-1.3

  #cd frei0r-1.3

    #do_configure " --build=mingw32  --host=$host_target --prefix=$mingw_w64_x86_64_prefix --disable-static --enable-shared" # see http://ffmpeg.zeranoe.com/forum/viewtopic.php?f=5&t=312

    #do_make_install

    # we rely on external dll's for this one, so only need the header to enable it, for now

    #cp include/frei0r.h $mingw_w64_x86_64_prefix/include

  #cd ..

  if [[ ! -f "$mingw_w64_x86_64_prefix/include/frei0r.h" ]]; then

    curl https://raw.github.com/rdp/frei0r/master/include/frei0r.h > $mingw_w64_x86_64_prefix/include/frei0r.h || exit 1

  fi

}

build_ffmpeg() {

  local shared=$1

  # can't mix and match --enable-static --enable-shared unfortunately, or the final executable seems to just use shared if the're both present

  if [[ $shared == "shared" ]]; then

    #do_git_checkout https://github.com/FFmpeg/FFmpeg.git ffmpeg_git_shared

    local extra_configure_opts="--enable-shared --disable-static"

    cd ffmpeg_git_shared

  else

    do_git_checkout https://github.com/FFmpeg/FFmpeg.git ffmpeg_git

    local extra_configure_opts="--enable-static --disable-shared"

    cd ffmpeg_git

  fi

  if [ "$bits_target" = "32" ]; then

   local arch=x86

  else

   local arch=x86_64

  fi

config_options="--arch=$arch --target-os=mingw32 --cross-prefix=$cross_prefix --pkg-config=pkg-config --enable-gpl --enable-version3 --enable-nonfree --enable-small --disable-pthreads --enable-w32threads --disable-doc --disable-debug --disable-network --disable-programs --disable-postproc --disable-avfilter --disable-avresample --enable-openssl --enable-libx264 --enable-libaacplus --disable-everything --enable-encoder=libx264 --enable-encoder=libaacplus --enable-decoder=h264 --enable-decoder=aac --extra-cflags=-DPTW32_STATIC_LIB  $extra_configure_opts " # others: --enable-w32threads --enable-libflite

  #if [[ "$non_free" = "y" ]]; then

   # config_options="$config_options --enable-nonfree  " # --enable-libaacplus --enable-libfaac -- faac deemed too poor quality and becomes the default -- add it in and uncomment the build_faac line to include it --enable-openssl --enable-libaacplus

 # else

  #  config_options="$config_options"

  #fi

  if [[ "$native_build" = "y" ]]; then

    config_options="$config_options --disable-runtime-cpudetect"

    # TODO --cpu=host ...

  else

    config_options="$config_options --enable-runtime-cpudetect"

  fi

  do_configure "$config_options"

  rm -f */*.a */*.dll *.exe # just in case some dependency library has changed, force it to re-link even if the ffmpeg source hasn't changed...

  rm already_ran_make*

  echo "doing ffmpeg make $(pwd)"

  do_make

  echo "Done! You will find $bits_target bit $shared binaries in $(pwd)/ff{mpeg,probe,play}*.exe"

  cd ..

}

build_dependencies() {

  build_win32_pthreads # vpx etc. depend on this--provided by the compiler build script now, though

  #build_libdl # ffmpeg's frei0r implentation needs this

  build_zlib # rtmp depends on it [as well as ffmpeg's optional but handy --enable-zlib]

  build_bzlib2 # in case someone wants it [ffmpeg uses it]

  #build_gmp # for libnettle

  #build_libnettle # needs gmp

  #build_gnutls # needs libnettle

  #build_frei0r

  #build_libutvideo

  #build_libflite # too big

  #build_libgsm

  build_sdl # needed for ffplay to be created

  build_libopus

  #build_libopencore

  #build_libogg

  #build_libspeex # needs libogg for exe's

  #build_libvorbis # needs libogg

  #build_libtheora # needs libvorbis, libogg

  #build_orc

  #build_libschroedinger # needs orc

  #build_libbluray

  #build_libxvid

  #build_libxavs

  build_libsoxr

  build_x264

  build_lame

  #build_libvpx

  #build_vo_aacenc

  # build_iconv # mplayer I think needs it for freetype [just it though]

  #build_freetype

  #build_libexpat

  #build_libilbc

  #build_fontconfig # needs expat, might need freetype, can use iconv, but I believe doesn't currently

  #build_libfribidi

  #build_libass # needs freetype, needs fribidi, needs fontconfig

  #build_libopenjpeg

  #if [[ "$non_free" = "y" ]]; then

    #build_fdk_aac

    # build_faac # not included for now, too poor quality :)

    # build_libaacplus # if you use it, you can't use any other AAC encoder, so disabled for now :)

  #fi

  #build_openssl # hopefully don't need it anymore, since we have gnutls...

  #build_librtmp # needs gnutls [or openssl...]

}

while true; do

  case $1 in

    -h | --help ) echo "options: --disable-nonfree=y --sandbox-ok=y --rebuild-compilers=y"; exit 0 ;;

    --sandbox-ok=* ) sandbox_ok="${1#*=}"; shift ;;

    --disable-nonfree=* ) disable_nonfree="${1#*=}"; shift ;;

    --rebuild-compilers=* ) rebuild_compilers="${1#*=}"; shift ;;

    -- ) shift; break ;;

    -* ) echo "Error, unknown option: '$1'."; exit 1 ;;

    * ) break ;;

  esac

done

intro # remember to always run the intro, since it adjust pwd

check_missing_packages

install_cross_compiler # always run this, too, since it adjust the PATH

setup_env

original_path="$PATH"

if [ -d "mingw-w64-i686" ]; then # they installed a 32-bit compiler

  echo "Building 32-bit ffmpeg..."

  host_target='i686-w64-mingw32'

  mingw_w64_x86_64_prefix="$cur_dir/mingw-w64-i686/$host_target"

  export PATH="$cur_dir/mingw-w64-i686/bin:$original_path"

  export PKG_CONFIG_PATH="$cur_dir/mingw-w64-i686/i686-w64-mingw32/lib/pkgconfig"

  bits_target=32

  cross_prefix="$cur_dir/mingw-w64-i686/bin/i686-w64-mingw32-"

  mkdir -p win32

  cd win32

  build_dependencies

  #build_ffmpeg

  build_ffmpeg shared

  cd ..

fi

if [ -d "mingw-w64-x86_64" ]; then # they installed a 64-bit compiler

  echo "Building 64-bit ffmpeg..."

  host_target='x86_64-w64-mingw32'

  mingw_w64_x86_64_prefix="$cur_dir/mingw-w64-x86_64/$host_target"

  export PATH="$cur_dir/mingw-w64-x86_64/bin:$original_path"

  export PKG_CONFIG_PATH="$cur_dir/mingw-w64-x86_64/x86_64-w64-mingw32/lib/pkgconfig"

  mkdir -p x86_64

  bits_target=64

  cross_prefix="$cur_dir/mingw-w64-x86_64/bin/x86_64-w64-mingw32-"

  cd x86_64

  build_dependencies

  #build_ffmpeg

  build_ffmpeg shared

  cd ..

fi

echo "done with ffmpeg cross compiler script, it may have built the following binaries:

$(find . -name ffmpeg.exe)"