Installing PAC (Perl Audio Converter) on Mac OS XEdit


Get the latest versions of libogg, libvorbis and flac from:

Make sure to work within a directory that has no spaces in its path

tar zxvf libogg-1.1.3.tar.gz
cd libogg-1.1.3
./configure && make && make check && sudo make install
cd ..
tar zxvf libvorbis-1.1.2.tar.gz
cd libvorbis-1.1.2
./configure && make && make check && sudo make install
cd ..
tar xzvf flac-1.1.2.tar.gz
cd flac-1.1.2
./configure --disable-asm-optimizations
make && make check && sudo make install
cd ..

When building on an Intel machine it is necessary to build flac with assembly optimizations turned off, at least in flac version 1.1.2. See "Building flac 1.2.1 on Mac OS X Leopard" for updated notes.

Installing PAC

Download the latest version from:

For some reason the PAC installer failed to install/recognize all the required modules so some had to be installed by hand:

tar xzvf pacpl-3.2.2.tar.gz
cd pacpl-3.2.2
sudo ./pacpl-install --install=all
sudo perl -MCPAN -e 'install Ogg::Vorbis::Header'
sudo perl -MCPAN -e 'install MP4::Info'
sudo perl -MCPAN -e 'install CDDB_get'
./pacpl-install --checkinstall
./pacpl-install --install=base

Installing ffmpeg

Get the latest version from:

They don’t provide downloadable releases. It appears they want everyone to be on the bleeding edge:

svn checkout svn:// ffmpeg
cd ffmpeg
./configure --disable-mmx && make && sudo make install

NOTE: for up-to-date notes, see "Building FFmpeg on Mac OS X".

Installing LAME

Get the latest version from:

tar xzvf lame-3.97b2.tar.gz
cd lame-3.97
./configure && make && sudo make install

Now you must edit the configuration file (unhelpfully installed in /etc/pacpl instead of /usr/local/etc/pacpl):

sudo nano /etc/pacpl/pacpl.conf

And specify where LAME and ffmpeg can be found:

LAME = /usr/local/bin/lame
FFMPEG = /usr/local/bin/ffmpeg

I later did the same for SoX:

SOX = /usr/local/bin/sox

Example usage

Demuxing DVD VOB files using vobinfo and converting the resulting AC3 files to MP3 with PAC:

for ITEM in `ls`;
vobinfo --demuxall --vob="${ITEM}"
pacpl --ac3tomp3 --dir .

In my testing this didn’t actually work. The produced MP3 files were all only about 1 kilobyte in size.