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Commit bb7f6b99 authored by Josh Coalson's avatar Josh Coalson
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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
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<one line to give the program's name and a brief idea of what it does.>
Copyright (C) 19yy <name of author>
This program is free software; you can redistribute it and/or modify
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This program is distributed in the hope that it will be useful,
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
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Gnomovision version 69, Copyright (C) 19yy name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
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You should also get your employer (if you work as a programmer) or your
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necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.
COPYING.LGPL 0 → 100644
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Makefile 0 → 100644
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#
# GNU Makefile
#
# Useful targets
#
# all : build all libraries and programs in the default configuration (currently 'release')
# debug : build all libraries and programs in debug mode
# release : build all libraries and programs in release mode
# test : run the unit and stream tests
# clean : remove all non-distro files
#
all: libFLAC flac test_streams test_unit
DEFAULT_CONFIG = release
CONFIG = $(DEFAULT_CONFIG)
debug : CONFIG = debug
release : CONFIG = release
debug : all
release : all
libFLAC:
(cd src/$@ ; make $(CONFIG))
flac: libFLAC
(cd src/$@ ; make $(CONFIG))
test_streams: libFLAC
(cd src/$@ ; make $(CONFIG))
test_unit: libFLAC
(cd src/$@ ; make $(CONFIG))
test: debug
(cd test ; make)
clean:
-(cd src/libFLAC ; make clean)
-(cd src/flac ; make clean)
-(cd src/plugin_xmms ; make clean)
-(cd src/test_streams ; make clean)
-(cd src/test_unit ; make clean)
-(cd test ; make clean)
README 0 → 100644
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==========
FLAC - 0.2
==========
This is the source release for the FLAC project. The
reference encoder/decoder library 'libFLAC' is released
under the LGPL (see COPYING.LGPL). This means the code
in include/FLAC/ and src/libFLAC/. All other code is
covered by the GPL (see COPYING.GPL). See
doc/index.html
for full documentation.
A brief description of the directory tree:
build/ makefile templates for building
doc/ the HTML documentation
include/ public include files for libFLAC
obj/ the compiled libraries and executables will
end up here
src/ the source code and private headers
test/ the test scripts
=============================
Building in a GNU environment
=============================
All files called 'Makefile' are GNUmake files. To build all
libraries and programs, just 'make all' from the top-level
directory. To run the tests, just 'make test'.
Everything can be built in either debug or release mode.
See the Makefiles for details.
==================
Building with MSVC
==================
There is no overall make system for MSVC but the individual
source directories with a 'Makefile.vc' file in them allow
building with MSVC. Just 'nmake /f Makefile.vc'.
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#
# GNU makefile fragment for building an executable
#
CC = gcc
# LINKAGE can be forced to -static or -dynamic from invocation if desired, but it defaults to -static
LINKAGE = -static
LINK = gcc $(LINKAGE)
BINPATH = ../../obj/bin
LIBPATH = ../../obj/lib
PROGRAM = $(BINPATH)/$(PROGRAM_NAME)
all : release
debug : CFLAGS = -g -O0 -DDEBUG $(DEBUG_CFLAGS) -Wall -W $(INCLUDES)
release : CFLAGS = -O3 -DNDEBUG $(RELEASE_CFLAGS) -Wall -W $(INCLUDES)
LFLAGS = -L$(LIBPATH)
debug : $(PROGRAM)
release : $(PROGRAM)
$(PROGRAM) : $(OBJS)
$(LINK) -o $@ $(OBJS) $(LFLAGS) $(LIBS)
%.o : %.c
$(CC) $(CFLAGS) -c $< -o $@
%.i : %.c
$(CC) $(CFLAGS) -E $< -o $@
.PHONY : clean
clean :
-rm -f $(OBJS) $(PROGRAM)
.PHONY : depend
depend:
makedepend -- $(CFLAGS) $(INCLUDES) -- *.c
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#
# GNU makefile fragment for building a library
#
CC = gcc
LINK = ar cru
LINKD = ld -G
LIBPATH = ../../obj/lib
STATIC_LIB = $(LIBPATH)/$(LIB_NAME).a
DYNAMIC_LIB = $(LIBPATH)/$(LIB_NAME).so
all : release
debug : CFLAGS = -g -O0 -DDEBUG $(DEBUG_CFLAGS) -Wall -W $(INCLUDES)
release : CFLAGS = -O3 -DNDEBUG $(RELEASE_CFLAGS) -Wall -W $(INCLUDES)
LFLAGS = -L$(LIBPATH)
debug : $(STATIC_LIB) $(DYNAMIC_LIB)
release : $(STATIC_LIB) $(DYNAMIC_LIB)
$(STATIC_LIB) : $(OBJS)
$(LINK) $@ $(OBJS)
$(DYNAMIC_LIB) : $(OBJS)
$(LINKD) -o $@ $(OBJS) $(LFLAGS) $(LIBS)
%.o : %.c
$(CC) $(CFLAGS) -c $< -o $@
%.i : %.c
$(CC) $(CFLAGS) -E $< -o $@
.PHONY : clean
clean :
-rm -f $(OBJS) $(STATIC_LIB) $(DYNAMIC_LIB)
.PHONY : depend
depend:
makedepend -- $(CFLAGS) $(INCLUDES) -- *.c
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doc/developers.html 0 → 100644
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>FLAC - developers</TITLE>
</HEAD>
<BODY MARGINWIDTH="0" MARGINHEIGHT="0" LEFTMARGIN="0" RIGHTMARGIN="0" TOPMARGIN="0" BGCOLOR="#99CC99" TEXT="#000000" LINK="#336699" VLINK="#336699" ALINK="#336699">
<TABLE BORDER=0 WIDTH="100%" CELLPADDING=1 CELLSPACING=0>
<TR>
<TD ALIGN="CENTER" BGCOLOR="#000000"><A HREF="http://flac.sourceforge.net/"><IMG SRC="images/logo.jpg" ALIGN=CENTER ALT="FLAC Logo" BORDER=0 HSPACE=0></a></TD>
</TR>
</TABLE>
<TABLE WIDTH="100%" CELLPADDING="0" CELLSPACING="0" BORDER="0"><TR BGCOLOR="#99CC99"><TD><IMG SRC="images/1x1.gif" WIDTH="1" HEIGHT="25" ALT=""></TD></TR></TABLE>
<TABLE WIDTH="100%" CELLPADDING="0" CELLSPACING="0" BORDER="0"><TR BGCOLOR="#000000"><TD><IMG SRC="images/1x1.gif" WIDTH="1" HEIGHT="2" ALT=""></TD></TR></TABLE>
<TABLE WIDTH="100%" CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD ALIGN="CENTER" BGCOLOR="#D3D4C5">
<TABLE CELLPADDING=0 CELLSPACING=0 BORDER=0>
<TR>
<TD HEIGHT=22 BGCOLOR="#D3D4C5" ALIGN=CENTER NOWRAP>&nbsp;&nbsp;<A CLASS="topnav" HREF="index.html">home</A>&nbsp;&nbsp;</TD><TD BGCOLOR="#D3D4C5" ALIGN=CENTER>|</TD>
<TD BGCOLOR="#D3D4C5" ALIGN=CENTER NOWRAP>&nbsp;&nbsp;<A CLASS="topnav" HREF="news.html">news</A>&nbsp;&nbsp;</TD><TD BGCOLOR="#D3D4C5" ALIGN=CENTER>|</TD>
<TD BGCOLOR="#D3D4C5" ALIGN=CENTER NOWRAP>&nbsp;&nbsp;<A CLASS="topnav" HREF="download.html">download</A>&nbsp;&nbsp;</TD><TD BGCOLOR="#D3D4C5" ALIGN=CENTER>|</TD>
<TD BGCOLOR="#D3D4C5" ALIGN=CENTER NOWRAP>&nbsp;&nbsp;<A CLASS="topnav" HREF="features.html">features</A>&nbsp;&nbsp;</TD><TD BGCOLOR="#D3D4C5" ALIGN=CENTER>|</TD>
<TD BGCOLOR="#D3D4C5" ALIGN=CENTER NOWRAP>&nbsp;&nbsp;<A CLASS="topnav" HREF="goals.html">goals</A>&nbsp;&nbsp;</TD><TD BGCOLOR="#D3D4C5" ALIGN=CENTER>|</TD>
<TD BGCOLOR="#D3D4C5" ALIGN=CENTER NOWRAP>&nbsp;&nbsp;<A CLASS="topnav" HREF="format.html">format</A>&nbsp;&nbsp;</TD><TD BGCOLOR="#D3D4C5" ALIGN=CENTER>|</TD>
<TD BGCOLOR="#D3D4C5" ALIGN=CENTER NOWRAP>&nbsp;&nbsp;<A CLASS="topnav" HREF="comparison.html">comparison</A>&nbsp;&nbsp;</TD><TD BGCOLOR="#D3D4C5" ALIGN=CENTER>|</TD>
<TD BGCOLOR="#D3D4C5" ALIGN=CENTER NOWRAP>&nbsp;&nbsp;<A CLASS="topnav" HREF="documentation.html">documentation</A>&nbsp;&nbsp;</TD><TD BGCOLOR="#D3D4C5" ALIGN=CENTER>|</TD>
<TD BGCOLOR="#D3D4C5" ALIGN=CENTER NOWRAP>&nbsp;&nbsp;developers&nbsp;&nbsp;</TD>
</TR>
</TABLE>
</TD>
</TR>
</TABLE>
<TABLE WIDTH="100%" CELLPADDING="0" CELLSPACING="0" BORDER="0"><TR BGCOLOR="#000000"><TD><IMG SRC="images/1x1.gif" WIDTH="1" HEIGHT="2" ALT=""></TD></TR></TABLE>
<CENTER>
<TABLE WIDTH="100%" CELLPADDING="0" CELLSPACING="0" BORDER="0"><TR BGCOLOR="#99CC99"><TD><IMG SRC="images/1x1.gif" WIDTH="1" HEIGHT="15" ALT=""></TD></TR></TABLE>
<TABLE WIDTH="100%" CELLPADDING="5" CELLSPACING="5" BORDER="0">
<TR><TD>
<TABLE WIDTH="100%" CELLPADDING="0" CELLSPACING="0" BORDER="0"><TR BGCOLOR="#000000"><TD><IMG SRC="images/1x1.gif" WIDTH="1" HEIGHT="1" ALT=""></TD></TR></TABLE>
<TABLE CELLSPACING="0" CELLPADDING="3" WIDTH="100%" BORDER="0" BGCOLOR="#D3D4C5">
<TR><TD><FONT FACE="Lucida,Verdana,Helvetica,Arial">
<B><FONT SIZE="+2">developers</FONT></B>
</FONT></TD></TR>
</TABLE>
<TABLE WIDTH="100%" CELLPADDING="0" CELLSPACING="0" BORDER="0"><TR BGCOLOR="#000000"><TD><IMG SRC="images/1x1.gif" WIDTH="1" HEIGHT="1" ALT=""></TD></TR></TABLE>
<TABLE CELLSPACING="0" CELLPADDING="3" WIDTH="100%" BORDER="0" BGCOLOR="#EEEED4">
<TR><TD><FONT FACE="Lucida,Verdana,Helvetica,Arial">
<P>
FLAC is an open source project and we are happy to enlist the help of anyone who wants to contribute. You can do this to a limited extent through the <A HREF="http://sourceforge.net/mail/?group_id=13478">mailing list</A> but if you have major changes to make to the code it's best to <A HREF="http://sourceforge.net/project/memberlist.php?group_id=13478">sign up as a developer</A>. In either case, make sure to check out the <A HREF="goals.html">FLAC goals</A> first; there are some thing the we <B>don't</B> want added to FLAC, like copy protection and lossy compression.
</P>
<P>
There are several areas that are especially important:
</P>
<P>
<UL>
<LI>
Converging on the <A HREF="format.html">bitstream format</A>. This is probably the single most important issue.
</LI>
<LI>
Testing. This is a close second, since if you are a lossless encoder you have to be absolutely lossless for all input. The test suite has patterns that are designed to strain the encoder to the limit but more test cases would definitely help.
</LI>
<LI>
Makefile fixups and code changes to work on more platforms. Both libFLAC and flac are ANSI C and use only the standard C library and math library, meaning ports should not be that difficult. Currently there is a GNU make system and makefiles for MSVC.
</LI>
<LI>
More input plugins. Currently there are plugins for XMMS and Winamp. More is better!
</LI>
<LI>
Speeding up the encoding. Encoding speed at average compression is a little slower than I would like. Improvements to the reference encoder that don't drastically obfuscate the code would be welcome.
</LI>
</UL>
</P>
<P>
Some other "nice-to-haves":
</P>
<P>
<UL>
<LI>
Improving the compression methods. Some suggestions: on the entropy coding side, try context-modeling the Rice paramter, using general Golomb coding and Huffman coding. On the prediction side, try some other methods for determining the LP coefficients (covariance method, Marple, Burg), or explore other kinds of modeling.
</LI>
<LI>
A faster seek algorithm in the file decoder.
</LI>
<LI>
A stream analyser that gives useful statistics for tuning or testing new algorithms.
</LI>
<LI>
Fix the MSVC makefiles to make libFLAC.dll (instead of just the .lib).
</LI>
<LI>
Clean up the Winamp2 plugin and/or write a Winamp3 one.
</LI>
<LI>
Configurable ID3V1 support and ID3V2 support in the plugins.
</LI>
<LI>
Better encoding decoding statistics for flac.
</LI>
<LI>