alac_decoder  most recent diff

View the most recent changes for the alac_decoder port at: alac_decoder.darwinports.com/diff
Scroll down toward the bottom of the page to get installation instructions for alac_decoder.
The raw portfile for alac_decoder 0.1.0 is located here:
http://alac_decoder.darwinports.com/dports/audio/alac_decoder/Portfile
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# $Id: Portfile 30219 2007-10-22 22:40:35Z jmpp macports.org $

PortSystem 1.0
Name: alac_decoder
Version: 0.1.0
Category: audio
Maintainers: nomaintainer
Description: basic decoder for Apple Lossless Audio Codec files
Long Description: This is a basic decoder for Apple Lossless Audio Codec files (ALAC). ALAC is a proprietary lossless audio compression scheme. Apple never released any documents on the format. What I provide here is a C implementation of a decoder, written from reverse engineering the file format. It turns out that most of the algorithms in the codec are fairly well known. ALAC uses an adaptive FIR prediction algorithm and stores the error values using a modified rice or golumb algorithm.
Homepage: http://craz.net/programs/itunes/alac.html
Platform: darwin
master_sites http://craz.net/programs/itunes/files/
checksums md5 f554fc11ee41a30bc5baf15a0fd07256

worksrcdir ${name}

use_configure no

build.target

destroot {
xinstall -m 555 ${worksrcpath}/alac ${destroot}${prefix}/bin
xinstall -d ${destroot}${prefix}/share/doc/${name}
xinstall -m 444 ${worksrcpath}/README ${destroot}${prefix}/share/doc/${name}
}

livecheck.check regex
livecheck.regex "
• (.+)"
  

If you haven't already installed Darwin Ports, you can find easy instructions for doing so at the main Darwin Ports page.
Once Darwin Ports has been installed, in a terminal window and while online, type the following and hit return:

%  cd /opt/local/bin/portslocation/dports/alac_decoder
%  sudo port install alac_decoder  
Password: 

You will then be prompted for your root password, which you should enter. You may have to wait for a few minutes while the software is retrieved from the network and installed for you. Y ou should see something that looks similar to:

--->  Fetching alac_decoder
--->  Verifying checksum for alac_decoder
--->  Extracting alac_decoder
--->  Configuring alac_decoder
--->  Building alac_decoder with target all

--->  Staging alac_decoder into destroot

--->  Installing alac_decoder

- Make sure that you do not close the terminal window while Darwin Ports is working. Once the software has been installed, you can find further information about using alac_decoder with these commands:

%  man alac_decoder
%  apropos alac_decoder
%  which alac_decoder
%  locate alac_decoder

 Where to find more information: