rockbox

History

Andrew Mahone 85aad9b397 Extend av_log2 in codeclib into a generic for scanning for set bits, which can provide either log2 or leading-zero-count output, and can force mapping 0 input to 0 output if needed (otherwise 0 input produces undefined result). Replace av_log2 in lib/codeclib.h, floor_log2 and wl_min_lzc in libfaad/common.c and common.h, and count_leading_zeros in libalac/alac.c with macros using bs_generic. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23903 a1c6a512-1295-4272-9138-f99709370657		2009-12-09 02:24:45 +00:00
..
alac.c	Extend av_log2 in codeclib into a generic for scanning for set bits, which can provide either log2 or leading-zero-count output, and can force mapping 0 input to 0 output if needed (otherwise 0 input produces undefined result). Replace av_log2 in lib/codeclib.h, floor_log2 and wl_min_lzc in libfaad/common.c and common.h, and count_leading_zeros in libalac/alac.c with macros using bs_generic.	2009-12-09 02:24:45 +00:00
decomp.h	Added macros controlling what goes to IRAM on different targets.	2006-11-09 21:59:27 +00:00
libalac.make	Silence warning from 'ar' if the archive had to be created.	2009-03-01 09:04:15 +00:00
README	Initial (unmodified - for reference) import of David Hammerton's Apple Lossless (ALAC) decoder from http://crazney.net/programs/itunes/alac.html	2005-09-22 18:47:04 +00:00
README.rockbox	First Rockbox version of ALAC decoder - porting to work in Rockbox environment and some simple (but significant) optimisations	2005-09-22 20:46:58 +00:00
SOURCES	Oops	2005-10-29 18:00:04 +00:00

README

INSTALLATION:
-------------

Simply compile by running 'make'

USAGE:
------

Then run the program, it will give you usage instructions.

It's really quite trivial to use.

For example, to decode input.m4a to output.wav:
./alac -f output.wav input.m4a

Or, as another example, say if you wanted to stream play
http://www.mplayerhq.hu/MPlayer/samples/A-codecs/lossless/luckynight.m4a
and you're system uses the ALSA sound system:
wget -O - http://www.mplayerhq.hu/MPlayer/samples/A-codecs/lossless/luckynight.m4a | ./alac - | aplay

By default the output file is in WAV format. To output as raw PCM, provide the
-r option on the command line.

MORE INFORMATION:
-----------------

Please visit http://crazney.net/programs/itunes/alac.html for more information.

HELP NEEDED:
------------
I need help to allow myself to continue hacking on various Apple Audio things, please visit
http://crazney.net/programs/itunes/help.html

AUTHOR:
-------

David Hammerton

CONTRIBUTORS:
-------------

Cody Brocious