I'm trying to use sox in a AWS lambda function for conversion of FLAC file to MP3, but I cannot seem to build a version of sox with FLAC support.
I have found this great solution that I have been using but it doesn't support FLAC.
I've searched the net for alternatives but nothing seems to work. I've also read that at some stage FLAC support went missing but should have been fixed. I'm still looking for answers, but any help is appreciated.
You need to add the libvorbis and flac libraries to your static build and flag the sox build to include them. I have made changes to the script from your example questions to show you how this done.
sudo yum update
sudo yum install gcc44 gcc-c++ libgcc44 cmake –y
# now grab sox and its dependencies
mkdir -p deps
mkdir -p deps/unpacked
mkdir -p deps/built
mkdir -p deps/built/libmad
mkdir -p deps/built/sox
mkdir -p deps/built/lame
mkdir -p deps/built/libvorbis
mkdir -p deps/built/flac
wget -O deps/sox-14.4.2.tar.bz2 "http://downloads.sourceforge.net/project/sox/sox/14.4.2/sox-14.4.2.tar.bz2?r=http%3A%2F%2Fsourceforge.net%2Fprojects%2Fsox%2Ffiles%2Fsox%2F14.4.2%2F&ts=1416316415&use_mirror=heanet"
wget -O deps/libmad-0.15.1b.tar.gz "http://downloads.sourceforge.net/project/mad/libmad/0.15.1b/libmad-0.15.1b.tar.gz?r=http%3A%2F%2Fsourceforge.net%2Fprojects%2Fmad%2Ffiles%2Flibmad%2F0.15.1b%2F&ts=1416316482&use_mirror=heanet"
wget -O deps/lame-3.99.5.tar.gz "http://downloads.sourceforge.net/project/lame/lame/3.99/lame-3.99.5.tar.gz?r=http%3A%2F%2Fsourceforge.net%2Fprojects%2Flame%2Ffiles%2Flame%2F3.99%2F&ts=1416316457&use_mirror=kent"
wget -O deps/libvorbis-1.3.5.tar.xz "http://downloads.xiph.org/releases/vorbis/libvorbis-1.3.5.tar.xz"
wget -O deps/flac-1.3.2.tar.xz "https://superb-dca2.dl.sourceforge.net/project/flac/flac-src/flac-1.3.2.tar.xz"
# unpack the dependencie
pushd deps/unpacked
tar xvfp ../sox-14.4.2.tar.bz2
tar xvfp ../libmad-0.15.1b.tar.gz
tar xvfp ../lame-3.99.5.tar.gz
tar xvfp ../libvorbis-1.3.5.tar.xz
tar xvfp ../flac-1.3.2.tar.xz
popd
# build libmad, statically
pushd deps/unpacked/libmad-0.15.1b
./configure --disable-shared --enable-static --prefix=$(realpath ../../built/libmad)
# Patch makefile to remove -fforce-mem
sed s/-fforce-mem//g < Makefile > Makefile.patched
cp Makefile.patched Makefile
make
make install
popd
# build lame, statically
pushd deps/unpacked/lame-3.99.5
./configure --disable-shared --enable-static --prefix=$(realpath ../../built/lame)
make
make install
popd
# build libvorbis, statically
pushd deps/unpacked/libvorbis-1.3.5
./configure --disable-shared --enable-static --prefix=$(realpath ../../built/libvorbis)
make
make install
popd
# build flac, statically
pushd deps/unpacked/flac-1.3.2
./configure --disable-shared --enable-static --prefix=$(realpath ../../built/flac)
make
make install
popd
# build sox, statically
pushd deps/unpacked/sox-14.4.2
./configure --disable-shared --enable-static --prefix=$(realpath ../../built/sox) \
LDFLAGS="-L$(realpath ../../built/libmad/lib) -L$(realpath ../../built/lame/lib) -L$(realpath ../../built/libvorbis/lib) -L$(realpath ../../built/flac/lib)" \
CPPFLAGS="-I$(realpath ../../built/libmad/include) -I$(realpath ../../built/lame/include) -I$(realpath ../../built/libvorbis/include) -I$(realpath ../../built/flac/include)" \
--with-mad --with-lame --with-libvorbis --with-flac --without-oggvorbis --without-oss --without-sndfile --without-gomp
make -s
make install
popd
cp deps/built/sox/bin/sox .
rm -rf deps/built
rm -rf deps/unpacked