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New version of mpg123

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src/contrib/mpg123decoder/mpg123/AUTHORS Normal file
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This is an attempt to give credit to the people who contributed in some way to the mpg123 project.
There are names and email addresses listed. Please use these addresses only to contact contributors with some question about their mpg123 contribution.
You are explicitly not allowed to send them unwanted business offers or to question the quality of their sex life.
--------------------
Current maintainers with various sorts of contributions:
Thomas Orgis <thomas@orgis.org>
Nicholas J Humfrey <njh@ecs.soton.ac.uk>
Generic address pointing to the current maintainer (hopefully still works in future in case maintainership will change again): <maintainer@mpg123.org>
The creator: Michael Hipp (email: hippm@informatik.uni-tuebingen.de - please bother maintainers first)
Contributions/ideas Thomas Orgis era (includes backports from mhipp trunk):
Jonathan Yong (jon_y) <10walls@gmail.com>: win32 hacking
Malcolm Boczek <MBoczek@terraindustries.com>: Common language runtime wrapper
Elbert Pol (TeLLie) <elbert.pol@gmail.com>: OS/2 port fixup
Jeroen Valkonet <jvalkon@xs4all.nl>: motivate pitch control, suggestive patch for pitch command in generic control interface
Andy Hefner <ahefner@gmail.com>: patch for that second UTF16 issue
Taihei Monma <tmkk@mac.com>: A whole lot of new/improved assembler code, including Altivec!
Christian Weisgerber <naddy@openbsd.org>: sndio output
Patrick Dehne (P4tr3ck) <patrick@steidle.net>: more MSVC++ porting, patch to handle missing bit reservoirs
Thorsten Glaser <tg@mirbsd.de>: icy2utf8, suggest utf8 locale stuff
Dan Smith <dan@algenta.com>: ABI fixes for ensuring stack alignment (esp. for MinGW-built DLL with MSVC)
Michael Ryzhykh <mclroy@gmail.com>: mpg123.spec.in
Stefan Lenselink <Stefan@lenselink.org>: initial aRts output
Sergej Kvachonok <ravenexp@gmail.com>: win32 audio rewrite
Winston: SunOS-4.1.4/gcc-2.7.0 testing and suggestions for fixes (legacy Makefile, integer type headers)
Mika Tiainen: pointing out the fix for the UTF to ASCII filtering of tags to actually work
Nick Kurshev <nickols_k@mail.ru>: extended 3dnow (from mplayer)
Zuxy Meng <zuxy.meng@gmail.com>: SSE (from mplayer)
Honza <cundrak@quick.cz>: idea and prototype patch for ICY meta data support
Petr Baudis <pasky@ucw.cz>: patches: term sigcont, id3 display unicode fallback and condensed output
Petr Salinger <Petr.Salinger@seznam.cz>: i486 enhancement
mpdavig@users.sourceforge.net: linux-ppc-nas Makefile.legacy entry
Adrian Bacon <adrian.bacon@xs4all.nl>: patched decode_i586_dither (noise shaped float/int rounding)
Cool Feet Audio project <nutcase@dtfm.org>: realtime equalizer control
Steve Grundell <www@grundell.u-net.com>: clean stdout in control mode with stdout decoding
Romain Dolbeau <romain@dolbeau.org>: Altivec support (taken from mplayer)
higway <higway@mednet.md>: MMX Patch
Clemens Ladisch <clemens@ladisch.de>: ALSA 0.9/1.0 support
Debian Daniel Kobras <kobras@debian.org> era:
Steve Kemp <skx@debian.org>
Dan Olson <theoddone33@icculus.org>
Syuuhei Kashiyama <squash@mb.kcom.ne.jp>
Rupert Levene <rupert.debian@hotpop.com>
Andreas Dilger <adilger@turbolinux.com>
Erik B. Andersen <andersee@debian.org>
Chris Butler <chrisb@debian.org>
Martin Sjogren <md9ms@mdstud.chalmers.se>
Chet Hosey <chosey@budapress.com>
Roland Rosenfeld <roland@spinnaker.de>
Debian Colin Watson <cjwatson@debian.org> era:
Helge Deller <deller@gmx.de>
Chet Hosey <chosey@budapress.com>
Christopher C. Chimelis <chris@debian.org>
Roland Rosenfeld <roland@spinnaker.de>
Marcelo E. Magallon <mmagallo@debian.org>
Initial Debianers:
Tommi Virtanen <tv@debian.org>
Paul Haggart <phaggart@debian.org>
Contributions/ideas Michael Hipp era:
Mikko Tommila: DCT9
Oliver Fromme <oliver.fromme@heim3.tu-clausthal.de>
MPEG Software Simulation Group: reference decoder package
Tobias Bading: idea for DCT64 in subband synthesis from maplay package
Jeff Tsay and Mikko Tommila: MDCT36 from maplay package
Philipp Knirsch <phil@mpik-tueb.mpg.de>: DCT36/manual unroll idea
Thomas Woerner: SGI Audio
Damien Clermonte: HP-UX audio fixes
Niclas Lindstrom <nil@wineasy.se>: OS2 port
Stefan Bieschewski <stb@acm.org>: Pentium optimizations, decode_i586.s
Martin Denn <mdenn@unix-ag.uni-kl.de>: NAS port
Niklas Beisert <nbeisert@physik.tu-muenchen.de>: MPEG 2.5 tables
<mycroft@NetBSD.ORG> and <augustss@cs.chalmers.se>: NetBSD Patch(es)
Kevin Brintnall <kbrint@visi.com>: BSD patch
Tony Million: win32 port
Steven Tiger Lang: advanced shuffle
Eric B. Mitchell: esd port
Ryan R. Prosser <prosser@geocities.com>: esd port for Solaris
Andreas Neuhaus: initial generic control interface
(additionally fetched from changelog:)
Ralf Hildebrandt <R.Hildebrandt@TU-BS.DE>: audio_alib changes
<sms@moe.2bsd.com>: BSDOS 4.0 with gcc added to Makefile
Bertrand Petit <elrond@phoe.netdev.net>: frontend changes
Erik Mouw <J.A.K.Mouw@its.tudelft.nl>: SGI audio fix for non RAD machines
Daniel O'Connor <darius@guppy.dons.net.au>: freebsd-esd make-entry
D. Skarda <0rfelyus@atrey.karlin.mff.cuni.cz>: enhanced head_check
Wilson, Jeff D <jeff.wilson@wilcom.com>: xterm-title
Robert Bihlmeyer <robbe@orcus.priv.at>: esd changes
Hannu Napari's <Hannu.Napari@hut.fi>: SGI audio patches
<Juergen.Schoew@unix-ag.uni-siegen.de>: native AIX support
<psst@euskalnet.net>: playlist patch
Gilles Zunino <Gilles.Zunino@hei.fupl.asso.fr>: SGI audio patches
Matthew Parslow <roy@alpha.alphalink.com.au>: esdserver patch
<dlux@dlux.sch.bme.hu>: equalizer patch (equalfile setting)
Ducroquet Erwan <ducroque@ufr-info-p7.ibp.fr>: HPUX/ALib support
Shane Wegner <shane@CM.NU>: genrepatch
Samuel Audet <guardia@step.polymtl.ca>: wav-File patch
"J. Dean Brederson" <jdb@cs.utah.edu>: SGI-RAD support
Chou Ye-chi <is84002@cis.nctu.edu.tw>: sajberplay/FreeBSD patch
Fabrice Bellard <bellard@email.enst.fr>: 486 optimizations
A. Hermansen <ahermans@vf.telia.no> and J. Kysela <perex@jcu.cz>: ALSA output
KIMURA Takuhiro <kim@hannah.ipc.miyakyo-u.ac.jp>: K6-3DNow
Petr Stehlik <stehlik@cas3.zlin.vutbr.cz>: MINT
Andy <andy@snoogie.demon.co.uk>: float2int speed up proposal
Brian Foutz <foutz@anise.ee.cornell.edu>: TK3Play
Thomas Niederreiter <tn@tarantel.rz.fh-muenchen.de>: RIFF header fix
Stefan Gybas <cab@studbox.uni-stuttgart.de>: m68k patch
Grant Erickson <eric0139@tc.umn.edu>: Linux PPC patch
Peter Berger <peterb@hoopoe.psc.edu>: BSDi patch
Henrik P Johnson <king@one.se>: HTTP auth
Steven Tiger Lang <tiger@tyger.org>: advanced shuffle
"Brian J. Swetland" <swetland@uiuc.edu>: front-end (remote) patch
<leo@zycad.com>
Tillmann Steinbrecher <tst@gmx.de>: shuffle patch
M.Stekelenburg <m.stekelenburg@student.utwente.nl>: i386-getbits
Antti Andreimann <anttix@cyberix.edu.ee>: outburst patch
Hur TaeSung <saturn@arari.snu.ac.kr>: 'http accept' patch
(from post-0.59 changes that yet have to go into new trunk:)
Hans Schwengeler <schweng@astro.unibas.ch>: audio_dec additions
Wojciech Barañski's Mp3Play (check the tools folder): Mp3Play frontend
Daniel Koukola: audio_oss.c patch
Munechika SUMIKAWA <sumikawa@ebina.hitachi.co.jp>: IPv6
TEMNOTA <temnota@kmv.ru>: HTTP,FTP patch/playlist fix
Peter Surda <shurdeek@panorama.sth.ac.at>: VBR patch
Ben <ben@blaukopf.com>: ARM startup time improvements
Dave MacKenzie <djm@pix.net>: init_output() patch
pasky's <pasky@ju.cz>: close-on-stop patch

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This is the file that contains the terms of use, copying, etc. for the mpg123 distribution package.
Main message:
Code is copyrighted by Michael Hipp, who made it free software under the terms of the LGPL 2.1.
But that is not all of it.
mpg123 is licensed under the GNU General Lesser Public License, version 2.1, and in parts under the GNU General Public License, version 2.
That means that _all_ of mpg123 is licensed under GPL and the major part also under the LGPL.
Actually, the "major part" currently is the whole distributed package of mpg123. There are some files (old alsa output, libao output) that you get from our svn repository and that do not fall under LGPL.
When the copyright marker in a source file says "the mpg123 project" that means that the file contains code copyrighted by contributors to mpg123, the "initially written by" naming the person(s) that created the file and thus may have the largest part of copyrights on it.
I am explaining this here to emphasize that the copyright always actually lies by the individual member (i.e. contributor to) of the mpg123 project who wrote a specific section of code.
Usage of a source code management system like Subversion should provide keeping track of individual copyright traces...
Please consider that any code that is contributed to the mpg123 project shall be licensed under LGPL 2.1 .
If you want to contribute, but don't agree to that (i.e. you want to have your code GPL only) please say so - then, we either you convince is to include your code under GPL, we convince you to make it LGPL instead or, as a last resort, you'll have to do you own GPLed fork.
But we should try to avoid the last option...
All files in the distribution that don't carry a license note on their own are licensed under the terms of the LGPL 2.1; all files that do carry either a LGPL or GPL note are licensed respectively under the LGPL or GPL as follows:
=======================
1. The LGPL version 2.1
=======================
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DAMAGES.
END OF TERMS AND CONDITIONS
====================
2. The GPL version 2
====================
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
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OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
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POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS

3
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This is a dummy file. If you want to see the change log, use subversion:
svn log -v svn://orgis.org/mpg123

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mpg123 install hints
--------------------
(This file has very long lines - die-hard terminal nostalgists can be satisfied by `fmt -s -w 75 < INSTALL | less`. I think it's better to let the reader's preference rule than to preformat the stuff to some arbitrary width.)
There are now two basic ways to get your mpg123 installation consisting of
a) the mpg123 binary file
- with libmpg123 as shared library or statically linked
- with audio output plugins, or one statically linked
b) a man page
(you may want to copy some of the documentation - README, etc - to /usr/share/doc/mpg123 or the like, too)
0. Prerequesites
You really need:
- a C compiler; we try to keep the code ANSI C89/ISO C90 compatible
gcc from 2.95 on should work, others, too - please report any issues
Actually, we have a confirmed working build (svn trunk leading to release 0.67) on SunOS 4.1.4 with gcc-2.7.0 .
- an (UNIX-like) operating system with standard tools; MinGW32 and Cygwin are working for Microsoft Windows, too.
- For the library only, you may get lucky with MSVC++ using the project files under ports/
- For other exotic platforms, see ports/
You want:
- working assembler (recent GNU binutils) if using certain CPU optimizations
- headers and lib for certain audio output drivers (libasound for alsa, sdl for sdl...)
- libtool's libltdl for runtime output modules (this used to be included, but now we rely on an existing install)
1. New installation via GNU autotools
The GNU 3-step procedure:
./configure
make
make install
Run
./configure --help
for a list of possible parameters you can specify. The obvious are --prefix and the normal GNU autotool bunch, but others include what audio subsystem to use and what CPU optimizations to build in.
For the optimizations (decoder choice), the default on 32bit x86 systems since version 0.66 is a build that combines all possible optimizations and chooses one at runtime (see --cpu, --list-cpu and --test-cpu parameters).
Another possibly important choice is --with-seektable=<number> for setting the size for the table of stored frame addresses to make seeking faster. When you want a minimal memory footprint, you can set number to 0. Seeking will always start from the beginning, then - being accurate, but rather slow, what doesn't matter if you don't use interactive seeking forth and back.
There are various library features you can leave out via --disable options (like output formats, resampling modes). Please note that this is only configured/tested for the generic (fpu) decoder, not optimized ones. Perhaps that changes in future.
1a. Large file support
The libmpg123 API includes the generic off_t type for file offsets and thus is subject to shape-shifting on systems that change off_t depending on build flags.
To deal with the incompatibilities that can cause, the library needs to separate code paths for small and large off_t.
Since version 1.12.0, a large-file-enabled libmpg123 (the default set by configure) provides a dual-mode ABI. Depending on _FILE_OFFSET_BITS, the mpg123.h header file selects different library symbols to use for your app.
In both large-file and normal mode, the library should just work for your app.
2. The classic way via the provided Makefile
No, the Makefile is not provided anymore. Even if autotools is complicated, it is more cumbersome to take care of two build systems in parallel.
You can dig in SVN for MakeLegacy.sh and src/Makefile.legacy and src/config.h.legacy, if you want.
Again, to be clear: There is no classic way anymore.
3. Do something different on a special platform/compiler/...
Look into the ports/ directory for some traces of "porting" mpg123 or usually libmpg123 alone to different systems and compilers.
3a. Preparing Win32 binary packages.
Caution: You should make sure to use some gcc >= 4.2.0, even if it's still the experimental package for MinGW32.
This helps preventing incompatibilities between generated DLL files and other compilers (it's about stack alignment).
Get MinGW/MSYS installed, run the MSYS shell.
Enter the mpg123 source directory.
Execute sh ./windows-builds.sh .
After some time, you should have some relevant files under releases/ (or releases\, for Windows people;-).
You don't just get one build -- there are several variants, corresponding to what usually is to be found under http://mpg123.org/download/win32 .
4. Have fun!
These are some remarks from Michael that could still bear some relevance:
- There is currently no direct audio hardware support for the
"dec" and "generic" targets. That means that you have to use
the "-s" commandline option to write the decoded audio data
to stdout.
- On Solaris, use Sun's SparcWorks compiler ("make solaris")
if at all possible. It generates faster code than gcc, so
use gcc only if there's no other way.
- The macro "htons" causes a compiler warning in httpget.c
(at least on FreeBSD 2.1.x). This can be safely ignored.
- For Solaris 2.4: append the options "-L/usr/ucblib -lucb"
at the end of the link command line. Do this ONLY for
Solaris 2.4, NOT for Solaris 2.5 or newer versions.
- The HP-UX port might be broken. I was able to compile it
on an HP-UX 9 account, but there were some problems with
libraries on HP-UX 10. I'm not an HP expert, but perhaps
someone else can fix it.
[note: some people report NO problems also with HP-UX 10]
- IRIX: some people reported compile problems on IRIX 5.x (5.3)
but 6.x seems to compile without problems

86
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## Makefile.am: produce Makefile.in from this
## copyright by the mpg123 project - free software under the terms of the LGPL 2.1
## see COPYING and AUTHORS files in distribution or http://mpg123.org
## initially written by Nicholas J. Humfrey
dist_man_MANS = man1/mpg123.1
SUBDIRS = src doc
DIST_SUBDIRS = src doc
ACLOCAL_AMFLAGS = -I m4
# pkg-config file for the mpg123 library
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = libmpg123.pc
# mpg123.spec is autogenerated but needs to be present in tarball!
EXTRA_DIST = \
mpg123.spec \
makedll.sh \
windows-builds.sh \
equalize.dat \
NEWS.libmpg123 \
ports/MSVC++/mpg123.h \
ports/MSVC++/config.h \
ports/MSVC++/msvc.c \
ports/MSVC++/examples/scan.c \
ports/MSVC++/examples/feedseek.c \
ports/MSVC++/2005/libmpg123/libmpg123.vcproj \
ports/MSVC++/2008/mpg123.sln \
ports/MSVC++/2008/feedseek/feedseek.vcproj \
ports/MSVC++/2008/mpglib/mpglib.vcproj \
ports/MSVC++/2008/libmpg123/libmpg123.vcproj \
ports/MSVC++/2008/scan/scan.vcproj \
ports/MSVC++/2008/dump_seekindex/dump_seekindex.vcproj \
ports/MSVC++/2008clr/2008clr.sln \
ports/MSVC++/2008clr/mpg123clr/advanced.cpp \
ports/MSVC++/2008clr/mpg123clr/advanced.h \
ports/MSVC++/2008clr/mpg123clr/AssemblyInfo.cpp \
ports/MSVC++/2008clr/mpg123clr/dllmain.cpp \
ports/MSVC++/2008clr/mpg123clr/enum.h \
ports/MSVC++/2008clr/mpg123clr/error.cpp \
ports/MSVC++/2008clr/mpg123clr/error.h \
ports/MSVC++/2008clr/mpg123clr/id3v1.cpp \
ports/MSVC++/2008clr/mpg123clr/id3v1.h \
ports/MSVC++/2008clr/mpg123clr/id3v2.cpp \
ports/MSVC++/2008clr/mpg123clr/id3v2.h \
ports/MSVC++/2008clr/mpg123clr/mpg123clr.cpp \
ports/MSVC++/2008clr/mpg123clr/mpg123clr.h \
ports/MSVC++/2008clr/mpg123clr/mpg123clr.rc \
ports/MSVC++/2008clr/mpg123clr/mpg123clr.vcproj \
ports/MSVC++/2008clr/mpg123clr/ReadMe.txt \
ports/MSVC++/2008clr/mpg123clr/resource.h \
ports/MSVC++/2008clr/mpg123clr/stdafx.cpp \
ports/MSVC++/2008clr/mpg123clr/stdafx.h \
ports/MSVC++/2008clr/mpg123clr/string.cpp \
ports/MSVC++/2008clr/mpg123clr/string.h \
ports/MSVC++/2008clr/mpg123clr/targetver.h \
ports/MSVC++/2008clr/mpg123clr/text.cpp \
ports/MSVC++/2008clr/mpg123clr/text.h \
ports/MSVC++/2008clr/examples/feedseekclr/feedseekclr.csproj \
ports/MSVC++/2008clr/examples/feedseekclr/Program.cs \
ports/MSVC++/2008clr/examples/feedseekclr/Properties/AssemblyInfo.cs \
ports/MSVC++/2008clr/examples/ReplaceReaderclr/ReplaceReaderclr.csproj \
ports/MSVC++/2008clr/examples/ReplaceReaderclr/Program.cs \
ports/MSVC++/2008clr/examples/ReplaceReaderclr/Properties/AssemblyInfo.cs \
ports/MSVC++/2008clr/examples/scanclr/scanclr.csproj \
ports/MSVC++/2008clr/examples/scanclr/Program.cs \
ports/MSVC++/2008clr/examples/scanclr/Properties/AssemblyInfo.cs \
ports/MSVC++/CMP3Stream/libMPG123/libMPG123.vcproj \
ports/MSVC++/CMP3Stream/libMPG123/PLACE_LIBMPG123_SOURCES_HERE \
ports/MSVC++/CMP3Stream/README \
ports/MSVC++/CMP3Stream/SOURCE/CORE_Log.CPP \
ports/MSVC++/CMP3Stream/SOURCE/CORE_FileIn.CPP \
ports/MSVC++/CMP3Stream/SOURCE/SourceFilter_MP3Stream.CPP \
ports/MSVC++/CMP3Stream/SOURCE/CORE_Mutex.CPP \
ports/MSVC++/CMP3Stream/INCLUDE/CORE/CORE_FileIn.H \
ports/MSVC++/CMP3Stream/INCLUDE/CORE/SourceFilter_MP3.H \
ports/MSVC++/CMP3Stream/INCLUDE/IIEP_FileIn.H \
ports/MSVC++/CMP3Stream/INCLUDE/IIEP_Def.H \
ports/README \
ports/Sony_PSP/config.h \
ports/Sony_PSP/README \
ports/Sony_PSP/Makefile.psp \
ports/Sony_PSP/readers.c.patch \
ports/mpg123_.pas \
scripts/benchmark-cpu.pl

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# Makefile.in generated by automake 1.11 from Makefile.am.
# @configure_input@
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation,
# Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
@SET_MAKE@
VPATH = @srcdir@
pkgdatadir = $(datadir)/@PACKAGE@
pkgincludedir = $(includedir)/@PACKAGE@
pkglibdir = $(libdir)/@PACKAGE@
pkglibexecdir = $(libexecdir)/@PACKAGE@
am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
install_sh_DATA = $(install_sh) -c -m 644
install_sh_PROGRAM = $(install_sh) -c
install_sh_SCRIPT = $(install_sh) -c
INSTALL_HEADER = $(INSTALL_DATA)
transform = $(program_transform_name)
NORMAL_INSTALL = :
PRE_INSTALL = :
POST_INSTALL = :
NORMAL_UNINSTALL = :
PRE_UNINSTALL = :
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build_triplet = @build@
host_triplet = @host@
subdir = .
DIST_COMMON = README $(am__configure_deps) $(dist_man_MANS) \
$(srcdir)/Makefile.am $(srcdir)/Makefile.in \
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Changes in libmpg123 libtool interface versions...
29.0.29
- New decoder: ARM neon.
- Added support for 24 bit output (dumb byte-chopping of 32 bit output).
28.0.28
- Add mpg123_strlen().
27.0.27
- Implictly disable seeking on streams when client enforced ICY parsing.
This helps debugging dumps of http streams.
26.0.26
- Added mpg123_encsize().
- Added flag MPG123_SKIP_ID3V2.
25.0.25
- Version increase to mark the point where the split between normal and large-file-enabled library vanishes again. The world did not like it.
Now Thomas lost some days of recreation and sleep to give it a dual-mode libmpg123 on large-file-sensitive systems.
24.0.24
- Introduce mpg123_replace_reader_handle() and mpg123_open_handle()
... this is also in preparation for the next version which will drop the separated large-file library again, due to public display of dismay.
- Add the experimental mpg123_framebyframe_decode to the off_t-sensitive functions.
23.0.23
- Version increase to mark the point where the explicit split between normal and large-file-enabled library has been introduced.
22.0.22
- Experimental framebyframe API added.
21.0.21
- Added support of unicode file names under windows via UTF-8 argument to mpg123_open.
- Added mpg123_feature(), for example to test for the above behaviour.
20.0.20
- New flag: MPG123_PLAIN_ID3TEXT
- Corresponding text encoding handling API added:
mpg123_enc_from_id3, mpg123_store_utf8
19.0.19
- Hm, what was it exactly now... there are candidates:
- runtime dithering
- free format
- ARM optimizations
18.0.18
- new parameter: MPG123_PREFRAMES is now tunable (the number of frames to decode and skip before a seek point), also default value increased
17.0.17
- introduction optimized stereo synths
16.0.16
- introducing floating point x86-64 SSE synth
15.0.15
- first addition of x86-64 SSE optimizations
14.0.14
- the first libmpg123 with actually working MPG123_UPSPEED
- also important regression fix concerning skipping of frames
13.0.13
- The whole set of output formats is generally available (8, 16 and 32 bit integer, signed/unsigned, float)
- Many features can be absent from libary as build decision (minimize binary size).
12.0.12
- added mpg123_current_decoder
- fixed value of MPG123_ENC_FLOAT
- float output now is a real runtime option
11.0.11
- added mpg123_getstate
- run-time tunable frame index
- officially configured with largefile support where available
10.0.10
- new flag MPG123_FUZZY (along with the fuzzy seek functionality)
9.0.9
- added mpg123_tell_stream
8.0.8
- added mpg123_get_eq
7.0.7
- added mpg123_set_filesize
6.0.6
- added mpg123_icy2utf8
5.0.5
- added mpg123_feed
- input buffers now const
4.0.4
- extended mpg123_string api (mpg123_add_substring, mpg123_grow_string)
3.0.3
- Initial floating point support as compile-time option.
2.0.2
- New flag MPG123_SEEKBUFFER.
1.0.1
- Added MPG123_RESYNC_LIMIT parameter.
- Added MPG123_OUT_OF_SYNC and MPG123_RESYNC_FAIL error codes.
- Fix for uninitialized framesize value in handle.

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* * * * * * * * * * * * * * * * * * * * * * * * * * * *
* mpg123 - MPEG 1.0/2.0/2.5 audio player *
* README for version 1.x.y, dated at 14.06.2009 *
* *
* ...still the fastest MPEG audio player for UNIX ;) *
* * * * * * * * * * * * * * * * * * * * * * * * * * * *
(This file has very long lines - die-hard terminal nostalgists can be satisfied by `fmt -s -w 75 < README | less`. I think it's better to let the reader's preference rule than to preformat the stuff to some arbitrary width.)
0. Stuff
For building/installation info see INSTALL.
The mpg123 project was started by Michel Hipp and is now being maintained by Thomas Orgis and Nicholas J. Humfrey, who initiated the Sourceforge project.
The source code contains contributions from quite a few people - see AUTHORS for more info.
It is Open Source software licensed mostly under the LGPL with some parts restricted to GPL. See COPYING for details.
As for every mp3 player, some of mpg123's functionality may be covered by patents in a country where these are valid. See PATENTS for details.
Project's official website URL is
http://mpg123.org
(or http://mpg123.orgis.org as fallback address if there is a problem with the DNS forwarding)
for the traditional home page and
http://sourceforge.net/projects/mpg123
for sourceforge.net based services like download mirrors, mailing lists and bug/feature trackers.
Please use the sourceforge download mirrors when possible to minimize load on the mpg123.org server.
1. Introduction
This is a console based decoder/player for mono/stereo mpeg audio files, probably more familiar as MP3 or MP2 files.
It's focus is speed. We still need some low-end benchmarks for the current version, but playback should be possible even on i486 CPUs. There is hand-optimized assembly code for i586, MMX, 3DNow, SEE and 3DNowExt instructions, while generic code runs on a variety of different platforms and CPUs.
It can play MPEG1.0/2.0/2.5 layer I, II, II (1, 2, 3;-) files (VBR files are fine, too) and produce output on a number of different ways: raw data to stdout and different sound systems depending on your platform (see INSTALL).
Most tested are Linux on x86 and Alpha/AXP and MacOSX on ppc as the environments the current developers work in.
We are always thankful for user reports on success (and failure) on any platform!
2. Contact
short:
mpg123-devel@lists.sourceforge.net
mpg123-users@lists.sourceforge.net
or
maintainer@mpg123.org
long: see doc/CONTACT
3. Interface/Usage
Please consult the manpage mpg123(1). Some starter info follows.
3.1 Simple Console Usage
Mpg123 is a console program - normally it just plays a list of files you specify on command line and that's it. See the included manpage or
mpg123 --help
or, for the full story,
mpg123 --longhelp
on command line syntax/options. I encourage you to check out the --gapless and --rva-album/--rva-mix options:-)
In the simple "mpg123 file1.mp3 file2.mp3" mode, the only thing you can do to interact is to press Ctrl+C to skip to next track or end the whole playback if pressing it twice.
Note that this Ctrl+C behaviour is special to this mode; when any of the following is activated, Ctrl+C will just kill the program like you would expect normally (this changed from earlier versions).
3.2 Advanced Console Usage
You can specify the option -C to enable a terminal control interface enabling to influence playback on current title/playlist by pressing some key:
-= terminal control keys =-
[s] or [ ] interrupt/restart playback (i.e. 'pause')
[f] next track
[d] previous track
[b] back to beginning of track
[p] pause while looping current sound chunk
[.] forward
[,] rewind
[:] fast forward
[;] fast rewind
[>] fine forward
[<] fine rewind
[+] volume up
[-] volume down
[r] RVA switch
[v] verbose switch
[l] list current playlist, indicating current track there
[t] display tag info (again)
[m] print MPEG header info (again)
[h] this help
[q] quit
You can change these bindings to key to your liking by modifying term.h .
Note: This interface needs not to be available on _every_ platform/build.
Another note: The volume up and down is performed by changing the scale factor (like the -f parameter) ... so the audio is scaled digitally in the given range of the output format (usually 16bits). That means the lowering the volume will decrease the dynamic range and possibly lessen the quality while increasing volume can in fact increase the dynamic range and thus make it better, if you deal with a silent source and no clipping is necessary.
It is a good idea to use RVA values stored in the file for adjusting low volume files, though - mpg123 handles that in addition to your volume setting.
3.3 Control Interface for Frontends
There used to be several interfaces for frontends left over from that past, but only one of them remains for the present and future:
The Generic Control Interface
It contains of communication of textual messages via standard input to mpg123 and responses to standard output unless the -s switch for output of audio data on stdout is used - then the responses come via stderr.
See doc/README.remote for usage.
4. Speed
mpg123 is fast. Any faster software player is probably based on some hacked mpg123;-)
MPlayer included mpg123 source code in it's mp3lib and we have to be thankful for the MPlayer folks adding SSE, 3DNowExt and AltiVec optimizations over the years, which we were able to backport.
mpg123 includes the AltiVec optimization since version 0.61 and the SSE and 3DNowExt optimizations since 0.66 .
Also, version 0.66 adds the merged x86 optimization build, which includes every applicable optimization for x86 cpus except the one for i486, wich is a bit special.
Now mpg123 catched up with MPlayer's mp3lib concerning decoding speed on my Pentium M (which supports SSE):
Decoding a certain album (Queensryche's Rage for Order) to /dev/null took 22.4s user time with mpg123-0.66 compared to 24.7s with MPlayer-1.0rc1 .
Also, beginning with mpg123 1.8.0, there are fresh x86-64 SSE optimizations (provided by Taihei Monma) which make mpg123 the fastest MPEG audio decoder in my knowledge also on current 64bit x86 systems.
5. Accuracy
The mpg123 engine is able to decode in full compliance to ISO/IEC 11172-3, for all three layers, using floating point or integer math (the latter since 1.8.1).
Accuracy of 16bit output depends on specific optimization in use and compile-time choice about the rounding mode (which is performance relevant).
The ISO test suite is incorporated in the mpg123 subversion repository under svn://orgis.org/mpg123/test, nightly tests of a build (with high-quality 16bit rounding) are published on the mpg123 website.
Dithered 16bit output is available as an option (the --cpu choices ending with _dither). See
http://dither123.dyndns.org
on the whereabouts.
6. History
A looooong time ago (mid-90s), Michael Hipp wrote some initial mpg123 and made it _the_ Unix console mp3 player in the following years.
The exact date of birth is fuzzy in human memory, but according to the master himself (Michael) mpg123 started in 1994 as an MP2 player which a year later, 1995, gained MP3 ability.
The core decoder files have mostly 1995 as their birth year listed, so one can say that mpg123 as the layer1,2,3 player was born in 1995.
In any case, that is a looooong time ago for a media player - especially for one that is still alive!
This is the historic description:
This isn't a new player. It's a fully rewritten version originally based
on the mpegaudio (FHG-version) package. The DCT algorithm in the
synthesis filter is a rewritten version of the DCT first seen in the maplay
package, which was written by Tobias Bading (bading@cs.tu-berlin.de). The
rewrite was necessary, because the GPL may not allow this copyright mix.
The mpegaudio package was written by various people from the MPEG/audio
software simulation group. The maplay is under GPL .. You can find the
original source code and the mpegaudio package on: ftp.tnt.uni-hannover.de.
Especially layer3.c common.c and mpg123.h is based on the dist10 package.
The code is fully rewritten but I'm using sometimes the
same variable names or similar function names as in the
original package.
In the current layer3.c I'm using a DCT36 first seen in Jeff Tsay's
(ctsay@pasteur.eecs.berkeley.edu) maplay 1.2+ package. His code is
under GPL .. I also tried the enhancement from Mikko Tommila. His
code is also in layer3.c (but it's disabled at the moment, because
it was slightly slower than the unrolled 9 point DCT (at least on
_my_ system)). Theoretically it should be faster. You may try it on
your system.
Well, that's how it started...
Official development ceased due to the typical lack-of-time syndrome around 2002 and the free-floating patches began to seize the day.
But before that, Michael wrote or rewrote the essential code; others contributed their bits.
The main message is:
Code is copyrighted by Michael Hipp, who made it free software under the terms of the LGPL 2.1.
Please see doc/ROAD_TO_LGPL, COPYING and AUTHORS for details on that. Note that the only notable legacy non-LGPL file was the old alsa output that didn't work with alsa 0.9/1.0 anymore.
Also, there has been a libao output in the betas 0.60 for a short period. Libao being generally problematic for us because of its GPL license, this output is not distributed anymore in the release packages. There is now a new, LGPLed alsa output that made both the old alsa and libao obsolete for our purposes.
So, the distributed mpg123 releases actually only contain LGPL code, but you get the other files from our subversion repository if you checkout the trunk / version tags.
There has been quite some confusion about the licensing and "freeness" of mpg123 in the past.
The initial "free for private use, ask me when you want to do something commercial" license caused some people to avoid mpg123 and even to write a replacement mimicking the interface but using a different decoding engine - what was not actively developed for too long but entered the "free" software sections.
The Debian (non-free section) and Gentoo distributions cared about the last stable and the last development release of mpg123 over the years with mainly applying security fixes. Thanks go to the distribution maintainers for not letting it alone to bitrot over the years.
Thomas Orgis started to hack on mpg123 in 2004 while working on his personal audio experience with mixplayd and later DerMixD, utilizing the generic control interface. In Feb 2005, he crammed control interface improvements together with Debian's r19 fixes and released the personal fork/patch named mpg123-thor.
Little later that year, Nicholas J. Humphrey independently created the sourceforge project and released an autotooled 0.59r under official GPL flag with Debian and MacOSX fixes.
In the beginning of 2006, Thomas finally decided that he could work "officially" on mpg123 and contacted Michael Hipp for taking over maintainership.
Michael was all-positive about letting mpg123 really live again (and perhaps see version 1.0 some time;-) and also pointed at the sourceforge project that didn't see much activity since the initial release.
A lot of emails and some weeks later there was the two-developer team of Nicholas and Thomas working on merging their mpg123 variants as well as adding some features and fixes to let it shine again.
And there we are now...
7. End
Have fun!
____________
Thomas Orgis

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Things that need to be done...
0. Fix that ugly crash that happens sometimes when Ctrl+C-ing with jack output active:
Program terminated with signal 11, Segmentation fault.
[New process 6293]
[New process 6291]
[New process 6292]
[New process 6284]
#0 0x00002aced607695b in memcpy () from /lib/libc.so.6
(gdb) bt
#0 0x00002aced607695b in memcpy () from /lib/libc.so.6
#1 0x00002aced5b4f092 in jack_ringbuffer_read () from /usr/lib/libjack.so.0
#2 0x00000000004151dd in process_callback ()
#3 0x00002aced5b4bf40 in Jack::JackClient::Execute () from /usr/lib/libjack.so.0
#4 0x00002aced5b5f8da in Jack::JackPosixThread::ThreadHandler () from /usr/lib/libjack.so.0
#5 0x00002aced6354fa7 in start_thread () from /lib/libpthread.so.0
#6 0x00002aced60c802d in clone () from /lib/libc.so.6
1. mpg123 could pick up new sample rates suggested by the output modules (like a jack server fixed to 96kHz) and adapt to that.
Though the practical rates for MPEG audio are up to 48kHz ... but one could easily upsample.
Currently, we detect standard rates and resample when needed... but not new ones.
4. Prevent ID3v2 tags from being parsed multiple times after seek.
I need to carry a list of ID3v2 frame addresses that already have been parsed into the data structures.
Currently, this is a possible memory leak when the seek index is disabled (tag data at file beginning) or id3 data is just somewhere in the stream.
That being said, in the "normal" case, there is no leak.
5. What's about SINGLE_MIX?
Check what is _really_ happening there, make some test file...
6. Ensure proper operation of free format with the feeder.
MPG123_NEED_MORE needs to be propagated from the freeformat framesize guesser.

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#! /bin/sh
# depcomp - compile a program generating dependencies as side-effects
scriptversion=2009-04-28.21; # UTC
# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 Free
# Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
case $1 in
'')
echo "$0: No command. Try \`$0 --help' for more information." 1>&2
exit 1;
;;
-h | --h*)
cat <<\EOF
Usage: depcomp [--help] [--version] PROGRAM [ARGS]
Run PROGRAMS ARGS to compile a file, generating dependencies
as side-effects.
Environment variables:
depmode Dependency tracking mode.
source Source file read by `PROGRAMS ARGS'.
object Object file output by `PROGRAMS ARGS'.
DEPDIR directory where to store dependencies.
depfile Dependency file to output.
tmpdepfile Temporary file to use when outputing dependencies.
libtool Whether libtool is used (yes/no).
Report bugs to <bug-automake@gnu.org>.
EOF
exit $?
;;
-v | --v*)
echo "depcomp $scriptversion"
exit $?
;;
esac
if test -z "$depmode" || test -z "$source" || test -z "$object"; then
echo "depcomp: Variables source, object and depmode must be set" 1>&2
exit 1
fi
# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
depfile=${depfile-`echo "$object" |
sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
rm -f "$tmpdepfile"
# Some modes work just like other modes, but use different flags. We
# parameterize here, but still list the modes in the big case below,
# to make depend.m4 easier to write. Note that we *cannot* use a case
# here, because this file can only contain one case statement.
if test "$depmode" = hp; then
# HP compiler uses -M and no extra arg.
gccflag=-M
depmode=gcc
fi
if test "$depmode" = dashXmstdout; then
# This is just like dashmstdout with a different argument.
dashmflag=-xM
depmode=dashmstdout
fi
cygpath_u="cygpath -u -f -"
if test "$depmode" = msvcmsys; then
# This is just like msvisualcpp but w/o cygpath translation.
# Just convert the backslash-escaped backslashes to single forward
# slashes to satisfy depend.m4
cygpath_u="sed s,\\\\\\\\,/,g"
depmode=msvisualcpp
fi
case "$depmode" in
gcc3)
## gcc 3 implements dependency tracking that does exactly what
## we want. Yay! Note: for some reason libtool 1.4 doesn't like
## it if -MD -MP comes after the -MF stuff. Hmm.
## Unfortunately, FreeBSD c89 acceptance of flags depends upon
## the command line argument order; so add the flags where they
## appear in depend2.am. Note that the slowdown incurred here
## affects only configure: in makefiles, %FASTDEP% shortcuts this.
for arg
do
case $arg in
-c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
*) set fnord "$@" "$arg" ;;
esac
shift # fnord
shift # $arg
done
"$@"
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
mv "$tmpdepfile" "$depfile"
;;
gcc)
## There are various ways to get dependency output from gcc. Here's
## why we pick this rather obscure method:
## - Don't want to use -MD because we'd like the dependencies to end
## up in a subdir. Having to rename by hand is ugly.
## (We might end up doing this anyway to support other compilers.)
## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
## -MM, not -M (despite what the docs say).
## - Using -M directly means running the compiler twice (even worse
## than renaming).
if test -z "$gccflag"; then
gccflag=-MD,
fi
"$@" -Wp,"$gccflag$tmpdepfile"
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
echo "$object : \\" > "$depfile"
alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
## The second -e expression handles DOS-style file names with drive letters.
sed -e 's/^[^:]*: / /' \
-e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
## This next piece of magic avoids the `deleted header file' problem.
## The problem is that when a header file which appears in a .P file
## is deleted, the dependency causes make to die (because there is
## typically no way to rebuild the header). We avoid this by adding
## dummy dependencies for each header file. Too bad gcc doesn't do
## this for us directly.
tr ' ' '
' < "$tmpdepfile" |
## Some versions of gcc put a space before the `:'. On the theory
## that the space means something, we add a space to the output as
## well.
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
hp)
# This case exists only to let depend.m4 do its work. It works by
# looking at the text of this script. This case will never be run,
# since it is checked for above.
exit 1
;;
sgi)
if test "$libtool" = yes; then
"$@" "-Wp,-MDupdate,$tmpdepfile"
else
"$@" -MDupdate "$tmpdepfile"
fi
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
echo "$object : \\" > "$depfile"
# Clip off the initial element (the dependent). Don't try to be
# clever and replace this with sed code, as IRIX sed won't handle
# lines with more than a fixed number of characters (4096 in
# IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
# the IRIX cc adds comments like `#:fec' to the end of the
# dependency line.
tr ' ' '
' < "$tmpdepfile" \
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
tr '
' ' ' >> "$depfile"
echo >> "$depfile"
# The second pass generates a dummy entry for each header file.
tr ' ' '
' < "$tmpdepfile" \
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
>> "$depfile"
else
# The sourcefile does not contain any dependencies, so just
# store a dummy comment line, to avoid errors with the Makefile
# "include basename.Plo" scheme.
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
aix)
# The C for AIX Compiler uses -M and outputs the dependencies
# in a .u file. In older versions, this file always lives in the
# current directory. Also, the AIX compiler puts `$object:' at the
# start of each line; $object doesn't have directory information.
# Version 6 uses the directory in both cases.
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
test "x$dir" = "x$object" && dir=
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
if test "$libtool" = yes; then
tmpdepfile1=$dir$base.u
tmpdepfile2=$base.u
tmpdepfile3=$dir.libs/$base.u
"$@" -Wc,-M
else
tmpdepfile1=$dir$base.u
tmpdepfile2=$dir$base.u
tmpdepfile3=$dir$base.u
"$@" -M
fi
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
exit $stat
fi
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
do
test -f "$tmpdepfile" && break
done
if test -f "$tmpdepfile"; then
# Each line is of the form `foo.o: dependent.h'.
# Do two passes, one to just change these to
# `$object: dependent.h' and one to simply `dependent.h:'.
sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
# That's a tab and a space in the [].
sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
else
# The sourcefile does not contain any dependencies, so just
# store a dummy comment line, to avoid errors with the Makefile
# "include basename.Plo" scheme.
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
icc)
# Intel's C compiler understands `-MD -MF file'. However on
# icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
# ICC 7.0 will fill foo.d with something like
# foo.o: sub/foo.c
# foo.o: sub/foo.h
# which is wrong. We want:
# sub/foo.o: sub/foo.c
# sub/foo.o: sub/foo.h
# sub/foo.c:
# sub/foo.h:
# ICC 7.1 will output
# foo.o: sub/foo.c sub/foo.h
# and will wrap long lines using \ :
# foo.o: sub/foo.c ... \
# sub/foo.h ... \
# ...
"$@" -MD -MF "$tmpdepfile"
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
# Each line is of the form `foo.o: dependent.h',
# or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
# Do two passes, one to just change these to
# `$object: dependent.h' and one to simply `dependent.h:'.
sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
# Some versions of the HPUX 10.20 sed can't process this invocation
# correctly. Breaking it into two sed invocations is a workaround.
sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
hp2)
# The "hp" stanza above does not work with aCC (C++) and HP's ia64
# compilers, which have integrated preprocessors. The correct option
# to use with these is +Maked; it writes dependencies to a file named
# 'foo.d', which lands next to the object file, wherever that
# happens to be.
# Much of this is similar to the tru64 case; see comments there.
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
test "x$dir" = "x$object" && dir=
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
if test "$libtool" = yes; then
tmpdepfile1=$dir$base.d
tmpdepfile2=$dir.libs/$base.d
"$@" -Wc,+Maked
else
tmpdepfile1=$dir$base.d
tmpdepfile2=$dir$base.d
"$@" +Maked
fi
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile1" "$tmpdepfile2"
exit $stat
fi
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
do
test -f "$tmpdepfile" && break
done
if test -f "$tmpdepfile"; then
sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
# Add `dependent.h:' lines.
sed -ne '2,${
s/^ *//
s/ \\*$//
s/$/:/
p
}' "$tmpdepfile" >> "$depfile"
else
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile" "$tmpdepfile2"
;;
tru64)
# The Tru64 compiler uses -MD to generate dependencies as a side
# effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
# At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
# dependencies in `foo.d' instead, so we check for that too.
# Subdirectories are respected.
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
test "x$dir" = "x$object" && dir=
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
if test "$libtool" = yes; then
# With Tru64 cc, shared objects can also be used to make a
# static library. This mechanism is used in libtool 1.4 series to
# handle both shared and static libraries in a single compilation.
# With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
#
# With libtool 1.5 this exception was removed, and libtool now
# generates 2 separate objects for the 2 libraries. These two
# compilations output dependencies in $dir.libs/$base.o.d and
# in $dir$base.o.d. We have to check for both files, because
# one of the two compilations can be disabled. We should prefer
# $dir$base.o.d over $dir.libs/$base.o.d because the latter is
# automatically cleaned when .libs/ is deleted, while ignoring
# the former would cause a distcleancheck panic.
tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
tmpdepfile2=$dir$base.o.d # libtool 1.5
tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
"$@" -Wc,-MD
else
tmpdepfile1=$dir$base.o.d
tmpdepfile2=$dir$base.d
tmpdepfile3=$dir$base.d
tmpdepfile4=$dir$base.d
"$@" -MD
fi
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
exit $stat
fi
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
do
test -f "$tmpdepfile" && break
done
if test -f "$tmpdepfile"; then
sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
# That's a tab and a space in the [].
sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
else
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
#nosideeffect)
# This comment above is used by automake to tell side-effect
# dependency tracking mechanisms from slower ones.
dashmstdout)
# Important note: in order to support this mode, a compiler *must*
# always write the preprocessed file to stdout, regardless of -o.
"$@" || exit $?
# Remove the call to Libtool.
if test "$libtool" = yes; then
while test "X$1" != 'X--mode=compile'; do
shift
done
shift
fi
# Remove `-o $object'.
IFS=" "
for arg
do
case $arg in
-o)
shift
;;
$object)
shift
;;
*)
set fnord "$@" "$arg"
shift # fnord
shift # $arg
;;
esac
done
test -z "$dashmflag" && dashmflag=-M
# Require at least two characters before searching for `:'
# in the target name. This is to cope with DOS-style filenames:
# a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
"$@" $dashmflag |
sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
rm -f "$depfile"
cat < "$tmpdepfile" > "$depfile"
tr ' ' '
' < "$tmpdepfile" | \
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
dashXmstdout)
# This case only exists to satisfy depend.m4. It is never actually
# run, as this mode is specially recognized in the preamble.
exit 1
;;
makedepend)
"$@" || exit $?
# Remove any Libtool call
if test "$libtool" = yes; then
while test "X$1" != 'X--mode=compile'; do
shift
done
shift
fi
# X makedepend
shift
cleared=no eat=no
for arg
do
case $cleared in
no)
set ""; shift
cleared=yes ;;
esac
if test $eat = yes; then
eat=no
continue
fi
case "$arg" in
-D*|-I*)
set fnord "$@" "$arg"; shift ;;
# Strip any option that makedepend may not understand. Remove
# the object too, otherwise makedepend will parse it as a source file.
-arch)
eat=yes ;;
-*|$object)
;;
*)
set fnord "$@" "$arg"; shift ;;
esac
done
obj_suffix=`echo "$object" | sed 's/^.*\././'`
touch "$tmpdepfile"
${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
rm -f "$depfile"
cat < "$tmpdepfile" > "$depfile"
sed '1,2d' "$tmpdepfile" | tr ' ' '
' | \
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile" "$tmpdepfile".bak
;;
cpp)
# Important note: in order to support this mode, a compiler *must*
# always write the preprocessed file to stdout.
"$@" || exit $?
# Remove the call to Libtool.
if test "$libtool" = yes; then
while test "X$1" != 'X--mode=compile'; do
shift
done
shift
fi
# Remove `-o $object'.
IFS=" "
for arg
do
case $arg in
-o)
shift
;;
$object)
shift
;;
*)
set fnord "$@" "$arg"
shift # fnord
shift # $arg
;;
esac
done
"$@" -E |
sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
-e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
sed '$ s: \\$::' > "$tmpdepfile"
rm -f "$depfile"
echo "$object : \\" > "$depfile"
cat < "$tmpdepfile" >> "$depfile"
sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
msvisualcpp)
# Important note: in order to support this mode, a compiler *must*
# always write the preprocessed file to stdout.
"$@" || exit $?
# Remove the call to Libtool.
if test "$libtool" = yes; then
while test "X$1" != 'X--mode=compile'; do
shift
done
shift
fi
IFS=" "
for arg
do
case "$arg" in
-o)
shift
;;
$object)
shift
;;
"-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
set fnord "$@"
shift
shift
;;
*)
set fnord "$@" "$arg"
shift
shift
;;
esac
done
"$@" -E 2>/dev/null |
sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
rm -f "$depfile"
echo "$object : \\" > "$depfile"
sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
echo " " >> "$depfile"
sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
rm -f "$tmpdepfile"
;;
msvcmsys)
# This case exists only to let depend.m4 do its work. It works by
# looking at the text of this script. This case will never be run,
# since it is checked for above.
exit 1
;;
none)
exec "$@"
;;
*)
echo "Unknown depmode $depmode" 1>&2
exit 1
;;
esac
exit 0
# Local Variables:
# mode: shell-script
# sh-indentation: 2
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC"
# time-stamp-end: "; # UTC"
# End:

520
src/contrib/mpg123decoder/mpg123/build/install-sh Normal file
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@ -0,0 +1,520 @@
#!/bin/sh
# install - install a program, script, or datafile
scriptversion=2009-04-28.21; # UTC
# This originates from X11R5 (mit/util/scripts/install.sh), which was
# later released in X11R6 (xc/config/util/install.sh) with the
# following copyright and license.
#
# Copyright (C) 1994 X Consortium
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# Except as contained in this notice, the name of the X Consortium shall not
# be used in advertising or otherwise to promote the sale, use or other deal-
# ings in this Software without prior written authorization from the X Consor-
# tium.
#
#
# FSF changes to this file are in the public domain.
#
# Calling this script install-sh is preferred over install.sh, to prevent
# `make' implicit rules from creating a file called install from it
# when there is no Makefile.
#
# This script is compatible with the BSD install script, but was written
# from scratch.
nl='
'
IFS=" "" $nl"
# set DOITPROG to echo to test this script
# Don't use :- since 4.3BSD and earlier shells don't like it.
doit=${DOITPROG-}
if test -z "$doit"; then
doit_exec=exec
else
doit_exec=$doit
fi
# Put in absolute file names if you don't have them in your path;
# or use environment vars.
chgrpprog=${CHGRPPROG-chgrp}
chmodprog=${CHMODPROG-chmod}
chownprog=${CHOWNPROG-chown}
cmpprog=${CMPPROG-cmp}
cpprog=${CPPROG-cp}
mkdirprog=${MKDIRPROG-mkdir}
mvprog=${MVPROG-mv}
rmprog=${RMPROG-rm}
stripprog=${STRIPPROG-strip}
posix_glob='?'
initialize_posix_glob='
test "$posix_glob" != "?" || {
if (set -f) 2>/dev/null; then
posix_glob=
else
posix_glob=:
fi
}
'
posix_mkdir=
# Desired mode of installed file.
mode=0755
chgrpcmd=
chmodcmd=$chmodprog
chowncmd=
mvcmd=$mvprog
rmcmd="$rmprog -f"
stripcmd=
src=
dst=
dir_arg=
dst_arg=
copy_on_change=false
no_target_directory=
usage="\
Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
or: $0 [OPTION]... SRCFILES... DIRECTORY
or: $0 [OPTION]... -t DIRECTORY SRCFILES...
or: $0 [OPTION]... -d DIRECTORIES...
In the 1st form, copy SRCFILE to DSTFILE.
In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
In the 4th, create DIRECTORIES.
Options:
--help display this help and exit.
--version display version info and exit.
-c (ignored)
-C install only if different (preserve the last data modification time)
-d create directories instead of installing files.
-g GROUP $chgrpprog installed files to GROUP.
-m MODE $chmodprog installed files to MODE.
-o USER $chownprog installed files to USER.
-s $stripprog installed files.
-t DIRECTORY install into DIRECTORY.
-T report an error if DSTFILE is a directory.
Environment variables override the default commands:
CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
RMPROG STRIPPROG
"
while test $# -ne 0; do
case $1 in
-c) ;;
-C) copy_on_change=true;;
-d) dir_arg=true;;
-g) chgrpcmd="$chgrpprog $2"
shift;;
--help) echo "$usage"; exit $?;;
-m) mode=$2
case $mode in
*' '* | *' '* | *'
'* | *'*'* | *'?'* | *'['*)
echo "$0: invalid mode: $mode" >&2
exit 1;;
esac
shift;;
-o) chowncmd="$chownprog $2"
shift;;
-s) stripcmd=$stripprog;;
-t) dst_arg=$2
shift;;
-T) no_target_directory=true;;
--version) echo "$0 $scriptversion"; exit $?;;
--) shift
break;;
-*) echo "$0: invalid option: $1" >&2
exit 1;;
*) break;;
esac
shift
done
if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
# When -d is used, all remaining arguments are directories to create.
# When -t is used, the destination is already specified.
# Otherwise, the last argument is the destination. Remove it from $@.
for arg
do
if test -n "$dst_arg"; then
# $@ is not empty: it contains at least $arg.
set fnord "$@" "$dst_arg"
shift # fnord
fi
shift # arg
dst_arg=$arg
done
fi
if test $# -eq 0; then
if test -z "$dir_arg"; then
echo "$0: no input file specified." >&2
exit 1
fi
# It's OK to call `install-sh -d' without argument.
# This can happen when creating conditional directories.
exit 0
fi
if test -z "$dir_arg"; then
trap '(exit $?); exit' 1 2 13 15
# Set umask so as not to create temps with too-generous modes.
# However, 'strip' requires both read and write access to temps.
case $mode in
# Optimize common cases.
*644) cp_umask=133;;
*755) cp_umask=22;;
*[0-7])
if test -z "$stripcmd"; then
u_plus_rw=
else
u_plus_rw='% 200'
fi
cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
*)
if test -z "$stripcmd"; then
u_plus_rw=
else
u_plus_rw=,u+rw
fi
cp_umask=$mode$u_plus_rw;;
esac
fi
for src
do
# Protect names starting with `-'.
case $src in
-*) src=./$src;;
esac
if test -n "$dir_arg"; then
dst=$src
dstdir=$dst
test -d "$dstdir"
dstdir_status=$?
else
# Waiting for this to be detected by the "$cpprog $src $dsttmp" command
# might cause directories to be created, which would be especially bad
# if $src (and thus $dsttmp) contains '*'.
if test ! -f "$src" && test ! -d "$src"; then
echo "$0: $src does not exist." >&2
exit 1
fi
if test -z "$dst_arg"; then
echo "$0: no destination specified." >&2
exit 1
fi
dst=$dst_arg
# Protect names starting with `-'.
case $dst in
-*) dst=./$dst;;
esac
# If destination is a directory, append the input filename; won't work
# if double slashes aren't ignored.
if test -d "$dst"; then
if test -n "$no_target_directory"; then
echo "$0: $dst_arg: Is a directory" >&2
exit 1
fi
dstdir=$dst
dst=$dstdir/`basename "$src"`
dstdir_status=0
else
# Prefer dirname, but fall back on a substitute if dirname fails.
dstdir=`
(dirname "$dst") 2>/dev/null ||
expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
X"$dst" : 'X\(//\)[^/]' \| \
X"$dst" : 'X\(//\)$' \| \
X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
echo X"$dst" |
sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
s//\1/
q
}
/^X\(\/\/\)[^/].*/{
s//\1/
q
}
/^X\(\/\/\)$/{
s//\1/
q
}
/^X\(\/\).*/{
s//\1/
q
}
s/.*/./; q'
`
test -d "$dstdir"
dstdir_status=$?
fi
fi
obsolete_mkdir_used=false
if test $dstdir_status != 0; then
case $posix_mkdir in
'')
# Create intermediate dirs using mode 755 as modified by the umask.
# This is like FreeBSD 'install' as of 1997-10-28.
umask=`umask`
case $stripcmd.$umask in
# Optimize common cases.
*[2367][2367]) mkdir_umask=$umask;;
.*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
*[0-7])
mkdir_umask=`expr $umask + 22 \
- $umask % 100 % 40 + $umask % 20 \
- $umask % 10 % 4 + $umask % 2
`;;
*) mkdir_umask=$umask,go-w;;
esac
# With -d, create the new directory with the user-specified mode.
# Otherwise, rely on $mkdir_umask.
if test -n "$dir_arg"; then
mkdir_mode=-m$mode
else
mkdir_mode=
fi
posix_mkdir=false
case $umask in
*[123567][0-7][0-7])
# POSIX mkdir -p sets u+wx bits regardless of umask, which
# is incompatible with FreeBSD 'install' when (umask & 300) != 0.
;;
*)
tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
if (umask $mkdir_umask &&
exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
then
if test -z "$dir_arg" || {
# Check for POSIX incompatibilities with -m.
# HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
# other-writeable bit of parent directory when it shouldn't.
# FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
ls_ld_tmpdir=`ls -ld "$tmpdir"`
case $ls_ld_tmpdir in
d????-?r-*) different_mode=700;;
d????-?--*) different_mode=755;;
*) false;;
esac &&
$mkdirprog -m$different_mode -p -- "$tmpdir" && {
ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
}
}
then posix_mkdir=:
fi
rmdir "$tmpdir/d" "$tmpdir"
else
# Remove any dirs left behind by ancient mkdir implementations.
rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
fi
trap '' 0;;
esac;;
esac
if
$posix_mkdir && (
umask $mkdir_umask &&
$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
)
then :
else
# The umask is ridiculous, or mkdir does not conform to POSIX,
# or it failed possibly due to a race condition. Create the
# directory the slow way, step by step, checking for races as we go.
case $dstdir in
/*) prefix='/';;
-*) prefix='./';;
*) prefix='';;
esac
eval "$initialize_posix_glob"
oIFS=$IFS
IFS=/
$posix_glob set -f
set fnord $dstdir
shift
$posix_glob set +f
IFS=$oIFS
prefixes=
for d
do
test -z "$d" && continue
prefix=$prefix$d
if test -d "$prefix"; then
prefixes=
else
if $posix_mkdir; then
(umask=$mkdir_umask &&
$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
# Don't fail if two instances are running concurrently.
test -d "$prefix" || exit 1
else
case $prefix in
*\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
*) qprefix=$prefix;;
esac
prefixes="$prefixes '$qprefix'"
fi
fi
prefix=$prefix/
done
if test -n "$prefixes"; then
# Don't fail if two instances are running concurrently.
(umask $mkdir_umask &&
eval "\$doit_exec \$mkdirprog $prefixes") ||
test -d "$dstdir" || exit 1
obsolete_mkdir_used=true
fi
fi
fi
if test -n "$dir_arg"; then
{ test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
{ test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
{ test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
else
# Make a couple of temp file names in the proper directory.
dsttmp=$dstdir/_inst.$$_
rmtmp=$dstdir/_rm.$$_
# Trap to clean up those temp files at exit.
trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
# Copy the file name to the temp name.
(umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
# and set any options; do chmod last to preserve setuid bits.
#
# If any of these fail, we abort the whole thing. If we want to
# ignore errors from any of these, just make sure not to ignore
# errors from the above "$doit $cpprog $src $dsttmp" command.
#
{ test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
{ test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
{ test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
{ test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
# If -C, don't bother to copy if it wouldn't change the file.
if $copy_on_change &&
old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` &&
new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` &&
eval "$initialize_posix_glob" &&
$posix_glob set -f &&
set X $old && old=:$2:$4:$5:$6 &&
set X $new && new=:$2:$4:$5:$6 &&
$posix_glob set +f &&
test "$old" = "$new" &&
$cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
then
rm -f "$dsttmp"
else
# Rename the file to the real destination.
$doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
# The rename failed, perhaps because mv can't rename something else
# to itself, or perhaps because mv is so ancient that it does not
# support -f.
{
# Now remove or move aside any old file at destination location.
# We try this two ways since rm can't unlink itself on some
# systems and the destination file might be busy for other
# reasons. In this case, the final cleanup might fail but the new
# file should still install successfully.
{
test ! -f "$dst" ||
$doit $rmcmd -f "$dst" 2>/dev/null ||
{ $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
{ $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
} ||
{ echo "$0: cannot unlink or rename $dst" >&2
(exit 1); exit 1
}
} &&
# Now rename the file to the real destination.
$doit $mvcmd "$dsttmp" "$dst"
}
fi || exit 1
trap '' 0
fi
done
# Local variables:
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC"
# time-stamp-end: "; # UTC"
# End:

8406
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376
src/contrib/mpg123decoder/mpg123/build/missing Normal file
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#! /bin/sh
# Common stub for a few missing GNU programs while installing.
scriptversion=2009-04-28.21; # UTC
# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006,
# 2008, 2009 Free Software Foundation, Inc.
# Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
if test $# -eq 0; then
echo 1>&2 "Try \`$0 --help' for more information"
exit 1
fi
run=:
sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
# In the cases where this matters, `missing' is being run in the
# srcdir already.
if test -f configure.ac; then
configure_ac=configure.ac
else
configure_ac=configure.in
fi
msg="missing on your system"
case $1 in
--run)
# Try to run requested program, and just exit if it succeeds.
run=
shift
"$@" && exit 0
# Exit code 63 means version mismatch. This often happens
# when the user try to use an ancient version of a tool on
# a file that requires a minimum version. In this case we
# we should proceed has if the program had been absent, or
# if --run hadn't been passed.
if test $? = 63; then
run=:
msg="probably too old"
fi
;;
-h|--h|--he|--hel|--help)
echo "\
$0 [OPTION]... PROGRAM [ARGUMENT]...
Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
error status if there is no known handling for PROGRAM.
Options:
-h, --help display this help and exit
-v, --version output version information and exit
--run try to run the given command, and emulate it if it fails
Supported PROGRAM values:
aclocal touch file \`aclocal.m4'
autoconf touch file \`configure'
autoheader touch file \`config.h.in'
autom4te touch the output file, or create a stub one
automake touch all \`Makefile.in' files
bison create \`y.tab.[ch]', if possible, from existing .[ch]
flex create \`lex.yy.c', if possible, from existing .c
help2man touch the output file
lex create \`lex.yy.c', if possible, from existing .c
makeinfo touch the output file
tar try tar, gnutar, gtar, then tar without non-portable flags
yacc create \`y.tab.[ch]', if possible, from existing .[ch]
Version suffixes to PROGRAM as well as the prefixes \`gnu-', \`gnu', and
\`g' are ignored when checking the name.
Send bug reports to <bug-automake@gnu.org>."
exit $?
;;
-v|--v|--ve|--ver|--vers|--versi|--versio|--version)
echo "missing $scriptversion (GNU Automake)"
exit $?
;;
-*)
echo 1>&2 "$0: Unknown \`$1' option"
echo 1>&2 "Try \`$0 --help' for more information"
exit 1
;;
esac
# normalize program name to check for.
program=`echo "$1" | sed '
s/^gnu-//; t
s/^gnu//; t
s/^g//; t'`
# Now exit if we have it, but it failed. Also exit now if we
# don't have it and --version was passed (most likely to detect
# the program). This is about non-GNU programs, so use $1 not
# $program.
case $1 in
lex*|yacc*)
# Not GNU programs, they don't have --version.
;;
tar*)
if test -n "$run"; then
echo 1>&2 "ERROR: \`tar' requires --run"
exit 1
elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
exit 1
fi
;;
*)
if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
# We have it, but it failed.
exit 1
elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
# Could not run --version or --help. This is probably someone
# running `$TOOL --version' or `$TOOL --help' to check whether
# $TOOL exists and not knowing $TOOL uses missing.
exit 1
fi
;;
esac
# If it does not exist, or fails to run (possibly an outdated version),
# try to emulate it.
case $program in
aclocal*)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified \`acinclude.m4' or \`${configure_ac}'. You might want
to install the \`Automake' and \`Perl' packages. Grab them from
any GNU archive site."
touch aclocal.m4
;;
autoconf*)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified \`${configure_ac}'. You might want to install the
\`Autoconf' and \`GNU m4' packages. Grab them from any GNU
archive site."
touch configure
;;
autoheader*)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified \`acconfig.h' or \`${configure_ac}'. You might want
to install the \`Autoconf' and \`GNU m4' packages. Grab them
from any GNU archive site."
files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
test -z "$files" && files="config.h"
touch_files=
for f in $files; do
case $f in
*:*) touch_files="$touch_files "`echo "$f" |
sed -e 's/^[^:]*://' -e 's/:.*//'`;;
*) touch_files="$touch_files $f.in";;
esac
done
touch $touch_files
;;
automake*)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
You might want to install the \`Automake' and \`Perl' packages.
Grab them from any GNU archive site."
find . -type f -name Makefile.am -print |
sed 's/\.am$/.in/' |
while read f; do touch "$f"; done
;;
autom4te*)
echo 1>&2 "\
WARNING: \`$1' is needed, but is $msg.
You might have modified some files without having the
proper tools for further handling them.
You can get \`$1' as part of \`Autoconf' from any GNU
archive site."
file=`echo "$*" | sed -n "$sed_output"`
test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
if test -f "$file"; then
touch $file
else
test -z "$file" || exec >$file
echo "#! /bin/sh"
echo "# Created by GNU Automake missing as a replacement of"
echo "# $ $@"
echo "exit 0"
chmod +x $file
exit 1
fi
;;
bison*|yacc*)
echo 1>&2 "\
WARNING: \`$1' $msg. You should only need it if
you modified a \`.y' file. You may need the \`Bison' package
in order for those modifications to take effect. You can get
\`Bison' from any GNU archive site."
rm -f y.tab.c y.tab.h
if test $# -ne 1; then
eval LASTARG="\${$#}"
case $LASTARG in
*.y)
SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
if test -f "$SRCFILE"; then
cp "$SRCFILE" y.tab.c
fi
SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
if test -f "$SRCFILE"; then
cp "$SRCFILE" y.tab.h
fi
;;
esac
fi
if test ! -f y.tab.h; then
echo >y.tab.h
fi
if test ! -f y.tab.c; then
echo 'main() { return 0; }' >y.tab.c
fi
;;
lex*|flex*)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
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help2man*)
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WARNING: \`$1' is $msg. You should only need it if
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# Local variables:
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# time-stamp-start: "scriptversion="
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# End:

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We do regular testing of ISO MPEG compliant decoder accuracy, automatic with snapshot generation each night at least, with results shown on the front page of http://mpg123.org .
Since version 1.8.0, mpg123 really looks fine in that area... it's fast and sounds good;-)

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O-tone Michael Hipp: The mp3 benchmarking lie?
----------------------------------------------
Let's write a few notes about benchmarking the different mp3 decoders,
which are available. 'top' is NOT a benchmark, it's a simple check
how a program performs. The sad thing with 'top' is, that it has some
problems with the measurement of threaded programs of programs only
requesting short chunks of processor time. So, the only real test is
probably decoding a stream without threads with 100% CPU time and
measure the time how long your machine needs for it.
You can do this with mpg123 by doing a
time mpg123 -t mp3stream.mp3
or
time mpg123 -s mp3stream.mp3 > /dev/null
if you additionally want to measure the I/O time.
If you find a player, which claims to be 10 or even more times faster than the
current players: just don't believe it. A factor of 2 MAY BE possible.
Thomas's mpg123 decision process
--------------------------------
I made some tests back then when I wondered if there is a point in using another "modern" mp3 decoder for my mixing daemon. This was around Dec. 2004 till Feb. 2005 with current versions (0.59r-thorX in the case of mpg123). What follows is a copy of the DECODERS file in the dermixd distribution:
What decoder should one use?
-----
MP3
-----
mpg123 is the old-fashioned way, uncertain license, may have some problems with extraordinary files (huge id3v2 tags, other specialities?), but fast. Has EQ control; interactive frontend interface (in parts hacked by me...).
mpg321: is popular these days... interface? speed?
madplay: is becoming popular these days, handles RVA2 by itself... can't provide an interface nor EQ
speed:
decoding Dirty Guitar with NULL output, pentium-optimized (not more):
decoder user time/s
mpg123 23
madplay(hq) 46
madplay(speed) 34
mpg321(hq) 62
mpg321(speed) 49
So, there is still a strong technical point in using mpg123... even when my 366MHz-Laptop can easily handle several decoders at once with either of the programs, every percent cpu usage drags on the battery... and takes the cpu time from the real work
-----
OGG
-----
7,9M /tmp/dirty_guitar-q3.ogg
11M /tmp/dirty_guitar-q5.ogg
13M /tmp/dirty_guitar-q6.ogg
15M /tmp/dirty_guitar-q7.ogg
22M /tmp/dirty_guitar-q9.ogg
29M /tmp/dirty_guitar-q10.ogg
14M /tmp/dirty_guitar-std.mp3
101M /tmp/dirty_guitar.wav
speed of ogg123:
quality user time/s
3 31
5 36
6 38
7 39
10 55
So, with similar care as mpg123 concerning some (assembler?) optimization, ogg could well come close to "fast" mp3 decoding.
Does ist sound better, then?
A review from the new maintainer
--------------------------------
Now it's 2006, 23th of July. Still the same laptop, still the same mp3 file.
I just want to update the number for current mpg123 with the mmx optimization.
I should also see if competition (well, ogg, at least?) improved in the year that passed... but looking only at mp3, that reduces to the question if mpg123 got faster or slower.
Neither on the mpg321 site or the MAD site (ftp dir) did I find any new version. MAD is still 0.15.1b (0.15.2b for madplay), mpg321 still 0.2.10 .
Well, I can look at mplayer's mpg123 spawn called mp3lib that has been taken care for over the time.
But apart from that, will mpg123 stand alone on the field of console mp3 engines that are actively maintained???
To have at least some twist, I now measured the output of raw data to stdout (to /dev/null) instead of decoding alone. The hardware and largely the software is still the same (now kernel 2.6.11 instead of 2.6.?).
I've only used the "high quality" mad players - the earlier measurements give a hint about the difference to the "speed" variant.
mpg123-0.60-beta1, underworld_@_dirty_guitar.mp3
gcc-3.3.3
CFLAGS=-O2 -finline-functions -march=pentium2
built with the new autoconf/make system
machine in X11 running fluxbox, no active load (like a year ago)
measuring second run (with cached file)
time for -s > /dev/null decode...
pentium: 24s
pentium, MMX: 19s
pentium, MMX, gapless (runtime-disabled): 19s
pentium, MMX, gapless (also runtime-enabled): 19s
mpg321 0.2.10, high quality: 64s
madplay 0.15.2b, high quality: 56s
With the file length being m:s 9:58 (598s), for mpg123 that makes theoretical realtime cpu 3-4% for the PII-366.
Incidentally, `top` agrees there: it shows 3.0-3.3% CPU usage for the MMX/gapless binary during normal OSS playback.
I feel unable to benchmark the mp3 playback of mplayer - I don't see an option to make it decode audio as fast as possible (I only know -benhcmark and -noaudio; with esp. the latter not helping me there).

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If you find a bug, please check for and report it in the sourceforge bug tracking system:
http://sourceforge.net/tracker/?atid=733194&group_id=135704&func=browse

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If you have a problem with some mp3 file or with your platform that should be supported by mpg123, please post on the mpg123 user mailing list
mpg123-users@lists.sourceforge.net
Any ideas for feature improvements or any other suggestions concerning development may be better placed at
mpg123-devel@lists.sourceforge.net
If you don't want to subscribe to these, you can also drop a note to
maintainer@mpg123.org
But if you want to subscribe and participate in the open discussion or just browse the mailing list archives, see
http://sourceforge.net/mail/?group_id=135704
(or just http://sourceforge.net/projects/mpg123 and click through).

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GNU says that the license terms go into a file called COPYING.
Go over to COPYING to read the license, then.
Or...
You stay a bit with me here and read some not really important text.
You could imagine that there was some important text here, though.
You could also imagine that you were not sitting
in your office / living room / bathroom
in front of one of these evil electronic brains
(you didn't _print_ this file, did you?)
but being at some happy place, far, far away.
You could also imagine being at some unhappy place.
If you indeed are at such an unhappy place, imagine you were sitting
in your office / living room / bathroom
in front of this shiny, though evil, electronic brain.
Reading this pointless text.
Wondering about what you could have achieved in the past moments
if you wouldn't have continued reading this pointless text.
Wondering if anything is worth being achieved at all.
Or if it all is just...
pointless.

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## Makefile.am: produce Makefile.in from this
## copyright by the mpg123 project - free software under the terms of the LGPL 2.1
## see COPYING and AUTHORS files in distribution or http://mpg123.org
## initially written by Nicholas J. Humfrey
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if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
fi; \
cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
else \
test -f "$(distdir)/$$file" \
|| cp -p $$d/$$file "$(distdir)/$$file" \
|| exit 1; \
fi; \
done
check-am: all-am
check: check-am
all-am: Makefile
installdirs:
install: install-am
install-exec: install-exec-am
install-data: install-data-am
uninstall: uninstall-am
install-am: all-am
@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
installcheck: installcheck-am
install-strip:
$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
`test -z '$(STRIP)' || \
echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
mostlyclean-generic:
clean-generic:
distclean-generic:
-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
maintainer-clean-generic:
@echo "This command is intended for maintainers to use"
@echo "it deletes files that may require special tools to rebuild."
clean: clean-am
clean-am: clean-generic clean-libtool mostlyclean-am
distclean: distclean-am
-rm -f Makefile
distclean-am: clean-am distclean-generic
dvi: dvi-am
dvi-am:
html: html-am
html-am:
info: info-am
info-am:
install-data-am:
install-dvi: install-dvi-am
install-dvi-am:
install-exec-am:
install-html: install-html-am
install-html-am:
install-info: install-info-am
install-info-am:
install-man:
install-pdf: install-pdf-am
install-pdf-am:
install-ps: install-ps-am
install-ps-am:
installcheck-am:
maintainer-clean: maintainer-clean-am
-rm -f Makefile
maintainer-clean-am: distclean-am maintainer-clean-generic
mostlyclean: mostlyclean-am
mostlyclean-am: mostlyclean-generic mostlyclean-libtool
pdf: pdf-am
pdf-am:
ps: ps-am
ps-am:
uninstall-am:
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.PHONY: all all-am check check-am clean clean-generic clean-libtool \
distclean distclean-generic distclean-libtool distdir dvi \
dvi-am html html-am info info-am install install-am \
install-data install-data-am install-dvi install-dvi-am \
install-exec install-exec-am install-html install-html-am \
install-info install-info-am install-man install-pdf \
install-pdf-am install-ps install-ps-am install-strip \
installcheck installcheck-am installdirs maintainer-clean \
maintainer-clean-generic mostlyclean mostlyclean-generic \
mostlyclean-libtool pdf pdf-am ps ps-am uninstall uninstall-am
# Tell versions [3.59,3.63) of GNU make to not export all variables.
# Otherwise a system limit (for SysV at least) may be exceeded.
.NOEXPORT:

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Some notes about patents and mpg123 by Thomas Orgis
---------------------------------------------------
There has been a lot of confusion over mp3 (or more generic mpeg audio) patents and licensing issues due to the patents held by Fraunhofer and marketed by Thomson.
So, yes, there are patents held by Fraunhofer that are claimed to cover mpeg audio technology. There are also claims that they cover any similar technology (like OGG).
You may argue if these patents are valid at all (being illegal software patents, or being preceeded by known scientific publications), but they are internationally accepted by patent authorities and if you want to use mp3 commercially you should check
http://www.mp3licensing.org
for the Fraunhofer/Thomson opinion and their terms.
Since mpg123 is only a mpeg audio player, a good deal of patents that describe the encoding process (the tricky part) will not apply.
Also, statements from the patent holders up to now always allowed the non-commercial distribution of mpeg audio decoders without any fee.
They want you to pay for a license when you want to make money by selling a decoder, though. We don't sell mpg123.
Additionally, one should not forget the fact that the ideas are getting old; the basic (funded by government, btw.) research was somewhen back around the 80s and many patents are going to expire soon, best example in Germany:
P/DE 35 06 912 Method of transmission of an audio signal using grouping of amplitude values
Application was 22.02.1986 in Germany (and around Europe in the same time Jan/Feb 1986).
German patents last 20 years... now we have 24.07.2006. Time has come...
The idea of a patent is to make the inventor open the invention to the public by giving him some safe time to turn this invention into economical benefit.
People using (and improving!) the technology freely after that time is _the_ most important aspect of that idea.
Oh, I should mention the "core" mp3 patent (from http://gauss.ffii.org/PatentView/EP287578):
DE 3629434 / EP287578 Digital coding process
Application date in Germany was 29.08.1986 - that means that in a month from now (remember: 24.07.2006) this patent finds its natural end.
Then, there are other patents listed on the Fraunhofer/Thomson website that came very late... The one about join stereo coding was aplied for in Feb 1995. Did mpg123 implement that already back then? History is a bit blurry there...
There is a patent applied for in 1997, but probably covering encoding only. Still, even if that weren't the case - the basic decoding functionality of mpg123 didn't change that much after 1997; and they couldn't have patented existing functionality.
In general, few patents seem to cover decoders at all. Of course, with me being no lawyer, that statement is not trustworthy...
Bottom line is:
While Fraunhofer/Thomson don't want to charge free software players - they said that a long time ago, the time for they being able to place such charges is expiring or has already expired. One should really think before adding mp3pro/surround support to mpg123, though, since there are for sure more recent patents for that.
And don't forget: The progress bar is covered by a patent, too.

56
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************************************************************************
* 3DNow! support by KIMURA Takuhiro <kim@hannah.ipc.miyakyo-u.ac.jp> *
* <kim@comtec.co.jp> *
* (http://hannah.ipc.miyakyo-u.ac.jp/kim/) *
* Syuuhei Kashiyama <squash@mb.kcom.ne.jp> *
* (http://user.ecc.u-tokyo.ac.jp/~g810370/)*
************************************************************************
-----------------------------
What's new in patch for 0.59r
-----------------------------
- 3DNow! optimized decode routine (decode_3dnow.s,dct36_3dnow.s ;
these code based Syuuhei Kashiyama's 3DNow! patch for mpg123-0.59o)
- 3DNow! optimized equalizer (equalizer_3dnow.s ; do_equalizer() only)
- target "linux-3dnow-alsa" "linux-3dnow-esd" added (untested)
- automatic detect 3DNow! support CPU from CPUFLAGS (getcpuflags.s)
(i.e. use floating-pointer decode routine if your CPU isn't support
3DNow! or MMX instructions)
-------------
Added options
-------------
"--test-3dnow" : display result of autodetect and exit
"--force-3dnow" : force use of 3DNow! optimized decoder
(it will cause SIGILL if your CPU isn't support 3DNow! or MMX
instructions)
"--no-3dnow" : force use of floating-pointer decoder
-----------
How to make
-----------
[1] To make 3DNow! optimized mpg123,you need binutils-2.9.1.0.15 or later.
You can find the most recent binutils (2.9.1.0.25 until 23.Jun.1999) at
- kernel.org (and mirrors) : /pub/linux/devel/gcc/
- http://hannah.ipc.miyakyo-u.ac.jp/kim/Linux/binutils/
(Takuhiro's local copy)
etc.
[2] Type "make linux-3dnow" (OSS)
or "make linux-3dnow-alsa" (ALSA).
[3] Enjoy!
------------------
Precompiled binary
------------------
You can get precompiled binary of mpg123 (with 3DNow! support) from
http://hannah.ipc.miyakyo-u.ac.jp/kim/Linux/mpg123/
----------
References
----------
Useful sources of information on optimizing 3DNow! code include:
- AMD 3DNow! Technology Manual (Publication #21928)
English: http://www.amd.com/K6/k6docs/pdf/21928d.pdf
(Japanese: http://www.amd.com/japan/K6/k6docs/j21928c.pdf)
- AMD-K6-2 Processor Code Optimization Application Note (Publication #21924)
English: http://www.amd.com/K6/k6docs/pdf/21924b.pdf

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Thomas Orgis on RVA, Gain and Pain
Ok, so I'm going to add RVA/ReplayGain support... the problem there is not to read these valus from ID3 or Lame, not even to do the adjustment itself.
The problem is more to figure out how to interpret the dB values one gets there.
Main players in the field of relative volume adjustment / soft gain (without modifying actual audio data):
http://www1.cs.columbia.edu/~cvaill/normalize/
...writing RVA2 ID3v2tags for dB offset to user target amplitude, default being -12dB(FS)
http://www.replaygain.org/
...store the difference to reference of 83dB(SPL) ... somewhere
Both calculate some running RMS and do statistics with this - the main difference is the potentially different target level.
Also both know two basic types of adjustment: Per track to make all tracks sound at the same sevel (track / radio) and the one with default meaning to keep the loudness relations over albums (batch / audiophile).
dB can mean many things and also the raw value of a PCM sample doesn't equal directly to loudness (power of a wave != amplitude).
So that says the ReplayGain about applying the adjustment:
scale=10.^(replay_gain/20);
luckily, this is the same that I worked out on my own for the normalize RVA values in my mixplayer script:
return 10**($s/20);
I'll take that interpretaion of dB -> linear scale factor for samples for granted, then.
The replay_gain value is meant in the standard to represent the offset to 83dB(SPL - depending on your amplifier...), having in mind that actual most wanted average playback level should be 83dB(SPL) (defined by movie ppl as the loudness of a -20dB(FS) signal, leaving room for louder stuff).
But then there is the proposal to add 6dB preamp for pop music - am I judging music types with mpg123??
These 6dB are in fact the real world since lots of programs use 89dB(SPL...) as reference.
Thus, lame since 3.95.1 (according to MADplay's Rob Leslie who discussed with Lame ppl, verified in 3.96 source) stores the adjustment to 89dB.
To make that all sound the same, one should add 6bB to lame <3.95.1 ReplayGain values and use later ones verbatim - achieving 89dB everytime, whatever that may mean in reality out of my speakers (my Marantz' volume knob doesn't have a scale at all - be it dB or percent;-).
A funny aspect of this 6dB issue is to tell lame 3.95.1 from lame 3.95
As for normalize... the desired playback level is essentially undefined. Ignoring that and realizing that mpg123 has no way to determine real world sound power anyway, one has to just take the provided dB values and apply with the formula above.
The user is responsible for providing files with his desired settings... for that reason I also won't follow the ReplayGain demand/suggestion that a player should apply an average of gains of previous tracks if the current one lacks a setting.
So, well. Considering that ReplayGain (at least the radio one) being stored by current lame on encoding, I suppose that if there are RVA2 values in ID3v2 tags, these were added by a conscious user act and are overriding the ReplayGain ones.
I already read ReplayGain entries in Lame tag... should add ID3v2 parsing. Especially since the lame tag is ambignous because of the 6dB issue... I cannot distinguish 3.95.1 from 3.95 by reading the tag - frick!
But wait... 6dB?
[thomas@thorvas /home/thomas-data/mpg123-neu/lame-3.96.1]$ frontend/lame --cbr -T /mnt/knecht_mp3/music/covenant/2006_skyshaper/03-happy_man.mp3 ../testfiles/happy_man_lame-3.96.1.mp3
ID3v2 found. Be aware that the ID3 tag is currently lost when transcoding.
LAME version 3.96.1 (http://lame.sourceforge.net/)
Using polyphase lowpass filter, transition band: 17249 Hz - 17782 Hz
Encoding /mnt/knecht_mp3/music/covenant/2006_skyshaper/03-happy_man.mp3
to ../testfiles/happy_man_lame-3.96.1.mp3
Encoding as 44.1 kHz 128 kbps j-stereo MPEG-1 Layer III (11x) qval=3
Frame | CPU time/estim | REAL time/estim | play/CPU | ETA
6371/6374 (100%)| 1:41/ 1:41| 1:47/ 1:47| 1.6353x| 0:00
average: 128.0 kbps LR: 754 (11.83%) MS: 5620 (88.17%)
Writing LAME Tag...done
ReplayGain: -7.4dB
revmethod = 1
encoder padding: 1728
[thomas@thorvas /home/thomas-data/mpg123-neu/lame-3.95.1]$ frontend/lame --cbr -T /mnt/knecht_mp3/music/covenant/2006_skyshaper/03-happy_man.mp3 ../testfiles/happy_man.mp3
ID3v2 found. Be aware that the ID3 tag is currently lost when transcoding.
LAME version 3.95 (http://www.mp3dev.org/)
Using polyphase lowpass filter, transition band: 17249 Hz - 17782 Hz
Encoding /mnt/knecht_mp3/music/covenant/2006_skyshaper/03-happy_man.mp3
to ../testfiles/happy_man.mp3
Encoding as 44.1 kHz 128 kbps j-stereo MPEG-1 Layer III (11x) qval=3
Frame | CPU time/estim | REAL time/estim | play/CPU | ETA
6371/6374 (100%)| 1:36/ 1:36| 1:48/ 1:48| 1.7289x| 0:00
average: 128.0 kbps LR: 759 (11.91%) MS: 5615 (88.09%)
Writing LAME Tag...done
ReplayGain: -7.4dB
[thomas@thorvas /home/thomas-data/mpg123-neu/lame-3.95]$ frontend/lame --cbr -T /mnt/knecht_mp3/music/covenant/2006_skyshaper/03-happy_man.mp3 ../testfiles/happy_man_lame-3.95.mp3
ID3v2 found. Be aware that the ID3 tag is currently lost when transcoding.
LAME version 3.95 (http://www.mp3dev.org/)
Using polyphase lowpass filter, transition band: 17249 Hz - 17782 Hz
Encoding /mnt/knecht_mp3/music/covenant/2006_skyshaper/03-happy_man.mp3
to ../testfiles/happy_man_lame-3.95.mp3
Encoding as 44.1 kHz 128 kbps j-stereo MPEG-1 Layer III (11x) qval=3
Frame | CPU time/estim | REAL time/estim | play/CPU | ETA
6371/6374 (100%)| 1:37/ 1:37| 1:43/ 1:43| 1.7041x| 0:00
average: 128.0 kbps LR: 759 (11.91%) MS: 5615 (88.09%)
Writing LAME Tag...done
ReplayGain: -13.4dB
Together with the gain values read from tags:
3.96.1: -1.0dB (claimed -7.4dB)
3.95: -1.0dB (claimed -7.4dB)
3.95: -0.6dB (claimed -13.4dB)
So, the difference of 6dB shows in the values lame prints on the command line... but the lame tags only have 0.4dB difference and are much lower anyway - do I parse them correctly?
Opinion of normalize of these files: -2dB. Great. I guess the -1 is what lame really meant, then...
Storage places
==============
Points 1, 2 and 4 implemented to some respect.
1. Lame/Info tag
supposedly in format according to the proposed standard - but I yet have to verify if Lame really does this.
see http://gabriel.mp3-tech.org/mp3infotag.html
2. ID3v2 RVA2 frame(s)
Normalize does that. Rare is the software reading that.
I've never seen those frames since id3v2 -l doesn't know them.
3. APE tags
Gah, another Tag format. Foobar2000 uses this as default.
It's getting real-hy messy folks
4. Per convention in ID3 tags
Well, I myself once used the ID3v1 comment field for storing the mix rva value (textual) ... but that is a tad too unspecific.
I then also used user-defined ID3v2 comments like that:
[thomas@thorvas /home/thomas-data/mpg123-neu/svn/trunk]$ id3v2 -l /mnt/knecht_mp3/music/underworld/second_toughest_in_the_infants/02-banstyle_sappys_curry.mp3
id3v1 tag info for /mnt/knecht_mp3/music/underworld/second_toughest_in_the_infants/02-banstyle_sappys_curry.mp3:
Title : banstyle sappys curry Artist: underworld
Album : second toughest in the infants Year: 0 , Genre: Other (12)
Comment: Created by Grip Track: 2
id3v2 tag info for /mnt/knecht_mp3/music/underworld/second_toughest_in_the_infants/02-banstyle_sappys_curry.mp3:
TYER (Year): 0
TRCK (Track number/Position in set): 2
COMM (Comments): (ID3v1 Comment)[XXX]: Created by Grip
TCON (Content type): Other (12)
TPE1 (Lead performer(s)/Soloist(s)): underworld
TALB (Album/Movie/Show title): second toughest in the infants
TIT2 (Title/songname/content description): banstyle sappys curry
COMM (Comments): (RVA)[]: 4.3291
COMM (Comments): (RVA_ALBUM)[]: 3.666101
That still doesn't look like a bad Idea to me. Not bothering with byte ordering and whatnot. Just atof(id3v2_comm_rva).
One could still add dB, though.
Another convention is (rockbox mailinglist, not checked myself) used by Foobar:
TXXX (User defined text information): (replaygain_track_gain): -7.17 dB
TXXX (User defined text information): (replaygain_track_peak): 1.057122
TXXX (User defined text information): (replaygain_album_gain): -6.53 dB
TXXX (User defined text information): (replaygain_album_peak): 1.107456
So what are custom comment fields for when there are also custom text fields? They look very similar to me.
5. Leave the haunted music file alone and store metadata externally.
That's the only sane way for stuff like album art... and it's the way I do it in my music archive. the wrapper script reads the adjustment values and then sets an adjusted volume.
That's fine for my mixing daemon that manupulates the pcm data anyway, but it would be nice to have this functionality in the minimalist console mode. too.
Even more since it can be done without additional cpu power during decoding (well, one-time set up of the decode tables is needed for every track) similar to the equalizer.
I could simply start with text files with lines like
RVA_MIX: 3.4dB
RVA_ALBUM: 1.7dB
Prob here is that the effort to open and parse that extra file may hinder gapless decoding between tracks...
Well, one could parse all metadata files for a list of tracks before playback starts.
But all this won't work for streams via stdin (hm, one could argue if the stream needs RVA at all).

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Control interface to generic frontends
The generic remote interface allows frontends to easily control
mpg123 by commands through stdin/stdout. To start the generic
remote interface, start mpg123 with parameter -R.
In case of a frontend that starts mpg123 with the -s option to read the audio from stdout, the --remote-err option is automatically activated to send responses to stderr so that stdout stays clean for audio.
(Still the case?)
As an example it's used by IRMP3, a tool that allows you to
control mpg123 with a standard infrared remote control. See
http://www.fasta.fh-dortmund.de/users/andy/irmp3/ for more
information.
You can also specify --fifo <path> to create a named pipe at <path> and listen on that for commands instead stdin.
That way, you can deliberately control mpg123 by echoing into the named pipe from any terminal / program.
The command respones are still sent to standard out or standard error (depending on -s or --remote-err switches).
COMMAND CODES
-------------
You can get this info via the control command "help".
HELP/H: command listing (LONG/SHORT forms), command case insensitve
LOAD/L <trackname>: load and start playing resource <trackname>
LOADPAUSED/LP <trackname>: load but do not start playing resource <trackname>
PAUSE/P: pause playback
STOP/S: stop playback (closes file)
JUMP/J <frame>|<+offset>|<-offset>|<[+|-]seconds>s: jump to mpeg frame <frame> or change position by offset, same in seconds if number followed by "s"
VOLUME/V <percent>: set volume in % (0..100...); float value
RVA off|(mix|radio)|(album|audiophile): set rva mode
EQ/E <channel> <band> <value>: set equalizer value for frequency band 0 to 31 on channel 1 (left) or 2 (right) or 3 (both)
EQFILE <filename>: load EQ settings from a file
SHOWEQ: show all equalizer settings (as <channel> <band> <value> lines in a SHOWEQ block (like TAG))
SEEK/K <sample>|<+offset>|<-offset>: jump to output sample position <samples> or change position by offset
SCAN: scan through the file, building seek index
SAMPLE: print out the sample position and total number of samples
SEQ <bass> <mid> <treble>: simple eq setting...
PITCH <[+|-]value>: adjust playback speed (+0.01 is 1 % faster)
SILENCE: be silent during playback (meaning silence in text form)
STATE: Print auxilliary state info in several lines (just try it to see what info is there).
TAG/T: Print all available (ID3) tag info, for ID3v2 that gives output of all collected text fields, using the ID3v2.3/4 4-character names.
The output is multiple lines, begin marked by "@T {", end by "@T }".
ID3v1 data is like in the @I info lines (see below), just with "@T" in front.
An ID3v2 data field is introduced via ([ ... ] means optional):
@T ID3v2.<NAME>[ [lang(<LANG>)] desc(<description>)]:
The lines of data follow with "=" prefixed:
@T =<one line of content in UTF-8 encoding>
meaning of the @S stream info:
S <mpeg-version> <layer> <sampling freq> <mode(stereo/mono/...)> <mode_ext> <framesize> <stereo> <copyright> <error_protected> <emphasis> <bitrate> <extension> <vbr(0/1=yes/no)>
The @I lines after loading a track give some ID3 info, the format:
@I ID3:artist album year comment genretext
where artist,album and comment are exactly 30 characters each, year is 4 characters, genre text unspecified.
You will encounter "@I ID3.genre:<number>" and "@I ID3.track:<number>".
Then, there is an excerpt of ID3v2 info in the structure
@I ID3v2.title:Blabla bla Bla
for every line of the "title" data field. Likewise for other fields (author, album, etc).
RESPONSE CODES
--------------
Note: mpg123 returns errors on stderr, so your frontend should
look not only at stdout but also at stderr for responses.
It is a good idea to use --remote-err and just look at stderr.
@R MPG123 (ThOr) v6
Startup version message. Everything after MPG123 is auxilliary information about behaviour and command support, ID3v2 tag support is new in v3.
@I ID3:<a><b><c>
Status message after loading a song (ID3 song info)
a = title (exactly 30 chars)
b = artist (exactly 30 chars)
c = album (exactly 30 chars)
d = year (exactly 4 chars)
e = comment (exactly 30 chars)
f = genre (string)
@I ID3.genre:<number>
@I ID3.track:<number>
Optional lines with additional ID3v1 info (if present): Genre ID and track number in set.
@I ID3v2.title:<text>
After loading a track with ID3v2 info, such lines occur for every line of the "title" data field and likewise for other fields (author, album, etc).
@I <a>
Status message after loading a song (no ID3 song info)
a = filename without path and extension
@S <a> <b> ...
Stream info at beginning of playback, meaning
S <mpeg-version> <layer> <sampling freq> <mode(stereo/mono/...)> <mode_ext> <framesize> <stereo> <copyright> <error_protected> <emphasis> <bitrate> <extension> <vbr(0/1=yes/no)>
@S <a> <b> <c> <d> <e> <f> <g> <h> <i> <j> <k> <l>
Status message after loading a song (stream info)
a = mpeg type (string)
b = layer (int)
c = sampling frequency (int)
d = mode (string)
e = mode extension (int)
f = framesize (int)
g = stereo (int)
h = copyright (int)
i = error protection (int)
j = emphasis (int)
k = bitrate (int)
l = extension (int)
@F <a> <b> <c> <d>
Status message during playing (frame info)
a = framecount (int)
b = frames left this song (int)
c = seconds (float)
d = seconds left (float)
@P <a>
Playing status
a = 0: playing stopped
a = 1: playing paused
a = 2: playing unpaused
@E <a>
An error occured
Errors may be also reported by mpg123 through
stderr (without @E)
a = error message (string)
@J <n>
Jumped to frame n.
@RVA <mode>
Switched to specified RVA mode.
@V <volume>%
Set volume to specified value (float, percent).
@<x> : <y> : <z>
Set equalizer value z for band y of channel x.
@bass: <b> mid: <m> treble: <t>
Set simple equalizer control for bass, mid, treble.
@T <response from TAG command>
The output is multiple lines, begin marked by "@T {", end by "@T }".
ID3v1 data is like in the @I info lines, just with "@T" in front.
An ID3v2 data field is introduced via ([ ... ] means optional):
@T ID3v2.<NAME>[ [lang(<LANG>)] desc(<description>)]:
The lines of data follow with "=" prefixed:
@T =<one line of content in UTF-8 encoding>
EQUALIZER CONTROL (History)
---------------------------
WARNING: The interpretation of the command arguments changed. The channel is either 1 or 2 or 3 (left, right, both).
It used to be 0 or 1 for left or right but the change slipped through during libmpg123 work and now it is a fact.
Sorry.
Cold Feet Audio Patch for MPG123
10.07.2002
This is a dirty little hack to enable the equalizer in mpg123's
generic_control interface. It works like this, there are two
different channels on the equalizer and 32 frequencys.
The hack just enables mpg123's built in equalizer to run real-time.
We haven't built in any capability to save the eq, you're frontend
will have to handle that part, and init the eq on the startup of
mpg123.
K, it works like this:
#./mpg123 -R - <---- This command will start mpg123 in 'frontend' mode.
If you want to send it some eq values you'd send it:
eq X Y V[ENTER]
X = The channel. It can be either 0 or 1. I haven't put any error checking
in, so it probably wouldn't be a good idea to go out of bounds. (integer)
Y = This is the frequency, it can be 0 to 31. 0 being closer to treble and
31 being closer to bass. (integer)
V = The raw value of your equalizer setting. I've found that the values work
best between 0.00 and 3.00. When mpg123 starts up, all of them are set
to 1.00.
OK, have fun! If you have any questions or found some bugs, please contact
nutcase@dtmf.org
Thanks,
nut
Note by Thomas Orgis: The contact appears to be dead.

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The License of mpg123
=====================
by Thomas Orgis <thomas@orgis.org>
1. Story: The Odyssey, The Decision
-----------------------------------
This is the 17th of July in the year 2006, after half a year of preparation and the contributor email campaign running for over 3 months, I'm going to draw a conclusion about the licensing of the mpg123 project.
The license conditions of mpg123 have been subject to dispute and rejection by parts of the free software world in the past...
We want to have it straight now.
Michael doesn't have much freetime to maintain the code and bother with requests by companies wanting to use mpglib.
So, he already decided to place mpglib under LGPL and mpg123 under GPL in the past.
Now, after I applied for taking over maintainership we decided on placing as much code of the whole project as possible under LGPL to ease future code migration and merging between mpg123 and mpglib.
That decision was followed by a lot of work to track down as many contributors to both Michael's development tree and my -thor one as possible to ask them for explicit LGPL support statements.
I wrote to every Name/eMail address I could track down (including internet search for new addresses), regardless of the question if there indeed is some code left by that person.
I asked them to utter any problem they may have with LGPL license as well as contacting me if there are _no_ issues.
Of course, without having to ask again, supporters of LGPL are the initial author and the two current maintainers:
Michael Hipp
Nicholas J. Humfrey
Thomas Orgis
Also, new stuff was included with explicit LGPL permission from
Adrian Bacon
Romain Dolbeau
Guillaume Outters
Plus there is stuff pending with permission from
Zuxy Meng
Now for the folks having made suggestions and contributions over the years...
In the first round starting in March 2006 I wrote the initial mail to anyone I could get. That resulted in some positive responses - examples:
"I don't remember what I did, but LGPL is fine by me."
"No problem for me."
"Any code I may have contributed to the mpg123 project at any time in the
past are hereby licensed to you under the GNU Lesser General Public"
"it's fine with me if mpg123 goes LGPL.
However, my contribution to mpg123 was very minor, and I'm not even sure if
any of my code is still in the current version."
A good number of eMail addresses is just broken (years have passed...) and another good number of addresses are either totally unknown or not known to be good or bad since no response (not even bounce - thanks, spam!) came back in over 3 months.
Some statistics for the first run: 86 total , 15 positive, 37 broken email, 34 unknown
Positive:
Andreas Neuhaus
Chris Butler
Colin Watson
Daniel Kobras
Daniel O'Connor
Daniel Skarda
Erik B. Andersen
Helge Deller
Juergen Schoew
Martin Denn
Munechika SUMIKAWA
Oliver Fromme
Petr Stehlik
Robert Bihlmeyer
Samuel Audet
Shane Wegner
Stefan Bieschewski
Steven Schultz
Tillmann Steinbrecher
Tomas Oegren
Tommi Virtanen
Then, an investigation of the code revealed a core of people having actually left traces in the code.
Some more effort was put in tracking them down, with the partial success of having found some new, working email addresses and thus having some more positive responses .
But also, it showed that the main number of people is not reachable anymore.
Creators (of a whole file, driver...): 16 total, 5 positive, 2 broken email, 9 unknown
Positive:
Andreas Neuhaus
Juergen Schoew
Oliver Fromme
Petr Stehlik
Samuel Audet
Modders: 7 total, 1 positive, 2 broken mail, 4 unknown
Positive:
Tomas Oegren
That shows two things:
1. It's impossible to get a response from everyone having contributed in some way.
2. Everyone who I reached supports the license change to LGPL
So, for the sake of getting a reasonable step forward, I'm going to close the case.
There are three categories of code:
1. written by Michael or some other contributor who explicitly supports LGPL
Clear case: LGPL
2. contributed years ago without license notice
The grounded assumption of can be made that the contributor accepted Michael's conditions, esp. the part about the software being available without cost.
Furthermore they gave the code into Michael's hands or placed patches in the internet without any claims concerning commercial uses - wich were not covered by the old COPYING file.
Based on the assumption of acceptance for the mpg123 COPYING file and the included rule of Michael's decision for any further use, this code is to be placed under LGPL by Michael's decision.
3. contributed with notice
Some code includes a note about it being GPL. Well, one has to respect that.
That results in the bulk of mpg123 being LGPL and possibly some parts GPL only.
2. The Inventory
----------------
I will now examine the files of the mpg123 svn trunk as of 17.07.2006 with their respective legal status:
Stuff added by current maintainers, thus being LGPL:
scripts/debugdef.pl
AUTHORS
autogen.sh
configure.ac
Makefile.am
MakeLegacy.sh
src/audio_jack.c
src/audio_libao.c
src/Makefile.am
src/audio_alsa09.c
src/config.h.legacy
src/debug.h
src/layer3.h
Non-Code files from Michael, maintainers or just trivial content (safely LGPL, then):
BENCHMARKING
BUGS
CHANGES
equalize.dat
INSTALL
mpg123.1
COPYING
TODO
README
README.3DNOW
README.cfa
README.new
README.remote
README.thor
README.WIN32
test.pl
BENCHMARKING.thor
CONTACT
sources under LGPLv2.1:
by Michael:
audio.c
audio_dummy.c
audio.h
audio_hp.c
audio_oss.c
audio_sun.c
common.c
common.h
dct64.c
dct64_i386.c
decode_2to1.c
decode_4to1.c
decode.c
decode_i386.c
decode_ntom.c
Makefile.legacy
equalizer.c
getbits.c
getbits.h
huffman.h
l2tables.h
layer1.c
layer2.c
layer3.c
mpg123.c
mpg123.h
readers.c
system.c
tabinit.c
term.c
term.h
by contributors:
audio_aix.c: Juergen Schoew, Tomas Oegren, Niklas Edmundsson
audio_alib.c: Erwan Ducroquet
audio_esd.c: Eric B. Mitchell
audio_macosx.c: Guillaume Outters
audio_mint.c: Petr Stehlik
audio_nas.c: Martin Denn
audio_os2.c: Samuel Audet
audio_sgi.c: Thomas Woerner
audio_win32.c: Tony Million
buffer.c: Oliver Fromme
buffer.h: Daniel Kobras / Oliver Fromme
control_generic.c: Andreas Neuhaus, Michael Hipp, Thomas Orgis
dct36_3dnow.s: Syuuhei Kashiyama
dct64_3dnow.s: Syuuhei Kashiyama
dct64_altivec.c: Romain Dolbeau
dct64_i486.c: Fabrice Bellard
decode_3dnow.s: Syuuhei Kashiyama
decode_i486.c: Fabrice Bellard
decode_i586_dither.s: Stefan Bieschewski, Adrian Bacon
decode_i586.s: Stefan Bieschewski
decode_MMX.s: higway
dct64_MMX.s: higway
tabinit_MMX.s: higway
equalizer_3dnow.s: KIMURA Takuhiro
genre.h: Shane Wegner
getcpuflags.s: KIMURA Takuhiro
getlopt.c: Oliver Fromme
getlopt.h: Oliver Fromme
httpget.c: Oliver Fromme
wav.c: Samuel Audet
xfermem.c: Oliver Fromme
xfermem.h: Oliver Fromme
Makefile.win32: Michael Hipp / Tony Million
GPLv2
audio_alsa.c: by Anders Semb Hermansen, Jaroslav Kysela, Ville Syrjala
To be removed from distribution and thus not licensed in any special way:
precompiled/
tools/
The mpglib source is not part of the core mpg123 distribution anymore - it's written by Michael, it's LGPL, it shall become a real library with own distribution and be married to mpg123 again.
3. Conclusion
-------------
The decoder core Michael's work and under LGPL without question.
Oliver Fromme is more of a co-author than "just" a project contributor, but he explicitly agreed to LGPL anyway.
So, the core functionality is really safe without doubt.
Contributors added mainly output drivers (perhaps coming from some freely available reference implementation) and CPU optimizations.
Having explicit permission from a good deal of major contributors, the LGPL is quite comfortable here, too.
I won't hide that there are explicit statements missing for MMX and 3DNow! optimizations (and the i486 opt, for that matter) due to unreachable authors.
But I feel safe to make it LGPL there, too, because of the argument of them having given the code to Michael to incorporate it into mpg123 - without any own terms, implying that they agree to Michael's terms.
There is one file left that carries an explicit GPL (_no_ LGPL) statement: the old alsa output. This file won't work on current Linux systems, anyway.
Alsa is available through libao. There will probably be a new alsa output.
So, even that one GPL exception may vanish in future, but I'll keep it for now as there may be someone who still has an alsa installation for that it works.
For now that means mpg123 is LGPL with the exception of one file that is GPL only.
End.

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There are authors who write code and there are people who point us to what code to write, show us our errors and generally are trying hard to compensate the time the developers spent coding and not actually using the software.
These people are very valuable, indeed - let's thank our
Testers (alphapetical):
- Gabor Z. Papp
- "Gates Fan"
- JonY
- Serge Simon and the R.O.M. 106.5 FM Team (http://www.rom.lu/)
who motivated the --loop and --timeout modes and furthermore supported the maintainer with a donation on sf.net and a real bottle of wine from Luxembourg!
- Willy Tarreau
Heck, let's thank all of you who contributed bug reports, suggestions... those who took mpg123 source and compiled it on uncommon platforms.

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We badly need:
- header reorganization (lots of stuff don't belong to mpg123.h)
- integer type safety - STOP using ints where size_t or at least long would be appropriate (expecially stream readers)
- sprintf -> snprintf (maybe with switch to support ancient libc; or replacement by us)
- rewrite httpget.c; that thing has been a can of bugs for years and I understand why when I look at it (way too many cooks)
- really parse ID3V2 tags instead of skipping; done for RVA values... using the string info (just?) needs some Unicode/Locale handling
- check support for fixed point arithmentic; generic_nofpu seems wo work generally, but resampling does not sound nice
From Nicholas:
- Seperate out MPEG Audio decoder (only) into seperate library
- Allow choice of audio output at runtime, rather than compile time
- Choose processor optimization at runtime, rather than compile time?
From Michael (some time after/around pre-0.59s):
- add CRC check.
- add 'free format stream' support.
- optimize layer2.c:
step_two: fraction as pointer ..
process first channel 0 than channel 1
copy channel 0 to channel 1 for: i >= jsbound
- better frame reader .. especially for layer 3 - DONE by a good deal by Thomas
- MPEG system stream decoder
- check again layer1 !! (Layer-1 support not heavily tested ..)
Problems with Layer1 fl7 reference stream
- Write a special (optimized) 'single channel' decode.
- optimized dct64 for down sampling modes
- native audio support for AIX and DEC
- update manpage
- optimizations for downsampling modes on layer2 and layer1
MORE TODO: (partially done)
---------------------------
A few notes on how mpg123 tries to select a 'good'
audio encoding and frequency. (not full implemented yet!!)
- mpg123 tries to set the settings you specify on the command line
in the order of its appearence (exclusiv .. no fallback then)
(-r <rate>, --mono, --stereo, --8bit, etc )
- after this, mpg123 tries to set
1. the number of channels (or fallback to mono if stereo isn't possible)
2. the audioformat to 16 bit (or fallback to 8bit)
3. the "best" frequency: (in this order)
- the exact stream frequency or fallback to
- 2:1 frequency or fallback to
- 4:1 frequency or try the
- nearest frequency lower than the frequency of your stream
mpg123 automagically converts the rate.
So, if you think (or even know), that your hardware supports a higher
frequency only with eg. mono,8bit you must force mpg123 to play mono
and 8bit. ("--8bit -m") etc....
If you wanna a constant format eg to output the data to stdout you
must explicit force it with eg: '-r 44100 --stereo'
Else the format will be the format of the mpeg stream.

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/** \defgroup mpg123_examples example programs using libmpg123
@{ */
/** \file mpg123_to_wav.c A simple MPEG audio to WAV converter using libmpg123 (read) and libsndfile (write).
...an excersize on two simple APIs. */
/** \file mpglib.c Example program mimicking the old mpglib test program.
It takes an MPEG bitstream from standard input and writes raw audio to standard output.
This is an use case of the mpg123_decode() in and out function in the feeder mode.
*/
/** \file scan.c Example program that examines the exact length of an MPEG file.
It opens a list of files and does mpg123_scan() on each and reporting the mpg123_length() before and after that. */
/** \file id3dump.c Parse ID3 info and print to standard output. */
/* @} */

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# This file describes the settings to be used by the documentation system
# doxygen (www.doxygen.org) for a project
#
PROJECT_NAME = "libmpg123"
OUTPUT_DIRECTORY = .
CREATE_SUBDIRS = NO
OUTPUT_LANGUAGE = English
FULL_PATH_NAMES = NO
INPUT = doxy_examples.c examples/mpg123_to_wav.c examples/mpglib.c examples/scan.c examples/id3dump.c ../src/libmpg123/mpg123.h
OPTIMIZE_OUTPUT_FOR_C = YES
EXTRACT_ALL = NO
HIDE_UNDOC_MEMBERS = NO
QUIET = YES
WARNINGS = YES
SOURCE_BROWSER = YES
GENERATE_HTML = YES
HTML_OUTPUT = html
DISABLE_INDEX = YES
SORT_MEMBER_DOCS = NO
SORT_BRIEF_DOCS = NO
ENUM_VALUES_PER_LINE = 2
ENABLE_PREPROCESSING = YES
MACRO_EXPANSION = YES
EXPAND_ONLY_PREDEF = YES
PREDEFINED = EXPORT=
GENERATE_HTML = YES
GENERATE_LATEX = NO
GENERATE_RTF = NO
GENERATE_MAN = YES
MAN_LINKS = YES
GENERATE_XML = NO
HTML_HEADER = doxyhead.xhtml
HTML_FILE_EXTENSION = .shtml

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<!--#include virtual="../header.html" -->
<title>$title</title>
<link href="/doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<!--#include virtual="../linkbar.html" -->
<div style="padding:1em;">
<strong>Note:</strong>
This API doc is automatically generated from the current development version that you can get via Subversion or as a daily snapshot from <a href="http://mpg123.org/snapshot">http://mpg123.org/snapshot</a>.
There may be differences (additions) compared to the latest stable release. See <a href="http://mpg123.org/cgi-bin/viewvc.cgi/trunk/NEWS.libmpg123?view=markup">NEWS.libmpg123</a> and the overall <a href="http://mpg123.org/cgi-bin/viewvc.cgi/trunk/NEWS?view=markup">NEWS</a> file on libmpg123 versions and important changes between them.<br />
Let me emphasize that the policy for libmpg123 is to always stay backwards compatible -- only <em>additions</em> are planned (and it's not yet planned to change the plans;-).
</div>

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targets = feedseek mpg123_to_wav mpg123_to_wav_replaced_io scan id3dump mpglib dump_seekindex
all: $(targets)
# On largefile-aware systems you might want to use these instead:
#MPG123_CFLAGS := $(shell pkg-config --cflags libmpg123_64)
#MPG123_LDFLAGS := $(shell pkg-config --libs libmpg123_64)
# This works on sane setups where off_t is off_t, and just that.
MPG123_CFLAGS := $(shell pkg-config --cflags libmpg123)
MPG123_LDFLAGS := $(shell pkg-config --libs libmpg123)
SND_CFLAGS := $(shell pkg-config --cflags sndfile)
SND_LDFLAGS := $(shell pkg-config --libs sndfile)
# Oder of libs not that important here...
compile = $(CC) $(CPPFLAGS) $(CFLAGS) $(MPG123_CFLAGS)
linkflags = $(MPG123_LDFLAGS) $(LDFLAGS)
mpg123_to_wav: mpg123_to_wav.c
$(compile) -o mpg123_to_wav mpg123_to_wav.c $(SND_CFLAGS) $(SND_LDFLAGS) $(linkflags)
mpg123_to_wav_replaced_io: mpg123_to_wav_replaced_io.c
$(compile) -o $@ $< $(SND_CFLAGS) $(SND_LDFLAGS) $(linkflags)
feedseek: feedseek.c
$(compile) -o feedseek feedseek.c $(linkflags)
scan: scan.c
$(compile) -o scan scan.c $(linkflags)
id3dump:id3dump.c
$(compile) -o id3dump id3dump.c $(linkflags)
dump_seekindex: dump_seekindex.c
$(compile) -o dump_seekindex dump_seekindex.c $(linkflags)
mpglib: mpglib.c
$(compile) -o mpglib mpglib.c $(linkflags)
clean:
rm -vf $(targets)

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/*
dump_seekindex: Scan a mpeg file and dump its seek index.
copyright 2010 by the mpg123 project - free software under the terms of the LGPL 2.1
see COPYING and AUTHORS files in distribution or http://mpg123.org
initially written by Patrick Dehne
*/
#include <mpg123.h>
#include <stdio.h>
int main(int argc, char **argv)
{
mpg123_handle *m;
off_t* offsets;
off_t step;
size_t fill, i;
if(argc != 2)
{
fprintf(stderr, "\nI will dump the frame index of an MPEG audio file.\n");
fprintf(stderr, "\nUsage: %s <mpeg audio file>\n\n", argv[0]);
return -1;
}
mpg123_init();
m = mpg123_new(NULL, NULL);
mpg123_param(m, MPG123_RESYNC_LIMIT, -1, 0);
mpg123_param(m, MPG123_INDEX_SIZE, -1, 0);
mpg123_open(m, argv[1]);
mpg123_scan(m);
mpg123_index(m, &offsets, &step, &fill);
for(i=0; i<fill;i++) {
printf("Frame number %d: file offset %d\n", i * step, offsets[i]);
}
mpg123_close(m);
mpg123_delete(m);
mpg123_exit();
return 0;
}

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/*
feedseek: test program for libmpg123, showing how to use fuzzy seeking in feeder mode
copyright 2008 by the mpg123 project - free software under the terms of the LGPL 2.1
see COPYING and AUTHORS files in distribution or http://mpg123.org
*/
#include <mpg123.h>
#include <stdio.h>
#define INBUFF 16384 * 2 * 2
#define WAVE_FORMAT_PCM 0x0001
#define WAVE_FORMAT_IEEE_FLOAT 0x0003
FILE *out;
size_t totaloffset, dataoffset;
long rate;
int channels, enc;
unsigned short bitspersample, wavformat;
// write wav header
void initwav()
{
unsigned int tmp32 = 0;
unsigned short tmp16 = 0;
fwrite("RIFF", 1, 4, out);
totaloffset = ftell(out);
fwrite(&tmp32, 1, 4, out); // total size
fwrite("WAVE", 1, 4, out);
fwrite("fmt ", 1, 4, out);
tmp32 = 16;
fwrite(&tmp32, 1, 4, out); // format length
tmp16 = wavformat;
fwrite(&tmp16, 1, 2, out); // format
tmp16 = channels;
fwrite(&tmp16, 1, 2, out); // channels
tmp32 = rate;
fwrite(&tmp32, 1, 4, out); // sample rate
tmp32 = rate * bitspersample/8 * channels;
fwrite(&tmp32, 1, 4, out); // bytes / second
tmp16 = bitspersample/8 * channels; // float 16 or signed int 16
fwrite(&tmp16, 1, 2, out); // block align
tmp16 = bitspersample;
fwrite(&tmp16, 1, 2, out); // bits per sample
fwrite("data ", 1, 4, out);
tmp32 = 0;
dataoffset = ftell(out);
fwrite(&tmp32, 1, 4, out); // data length
}
// rewrite wav header with final length infos
void closewav()
{
unsigned int tmp32 = 0;
unsigned short tmp16 = 0;
long total = ftell(out);
fseek(out, totaloffset, SEEK_SET);
tmp32 = total - (totaloffset + 4);
fwrite(&tmp32, 1, 4, out);
fseek(out, dataoffset, SEEK_SET);
tmp32 = total - (dataoffset + 4);
fwrite(&tmp32, 1, 4, out);
}
// determine correct wav format and bits per sample
// from mpg123 enc value
void initwavformat()
{
if(enc & MPG123_ENC_FLOAT_64)
{
bitspersample = 64;
wavformat = WAVE_FORMAT_IEEE_FLOAT;
}
else if(enc & MPG123_ENC_FLOAT_32)
{
bitspersample = 32;
wavformat = WAVE_FORMAT_IEEE_FLOAT;
}
else if(enc & MPG123_ENC_16)
{
bitspersample = 16;
wavformat = WAVE_FORMAT_PCM;
}
else
{
bitspersample = 8;
wavformat = WAVE_FORMAT_PCM;
}
}
int main(int argc, char **argv)
{
unsigned char buf[INBUFF];
unsigned char *audio;
FILE *in;
mpg123_handle *m;
int ret, state;
size_t inc, outc;
off_t len, num;
size_t bytes;
off_t inoffset;
inc = outc = 0;
if(argc < 3)
{
fprintf(stderr,"Please supply in and out filenames\n");
return -1;
}
mpg123_init();
m = mpg123_new(NULL, &ret);
if(m == NULL)
{
fprintf(stderr,"Unable to create mpg123 handle: %s\n", mpg123_plain_strerror(ret));
return -1;
}
mpg123_param(m, MPG123_VERBOSE, 2, 0);
ret = mpg123_param(m, MPG123_FLAGS, MPG123_FUZZY | MPG123_SEEKBUFFER | MPG123_GAPLESS, 0);
if(ret != MPG123_OK)
{
fprintf(stderr,"Unable to set library options: %s\n", mpg123_plain_strerror(ret));
return -1;
}
// Let the seek index auto-grow and contain an entry for every frame
ret = mpg123_param(m, MPG123_INDEX_SIZE, -1, 0);
if(ret != MPG123_OK)
{
fprintf(stderr,"Unable to set index size: %s\n", mpg123_plain_strerror(ret));
return -1;
}
ret = mpg123_format_none(m);
if(ret != MPG123_OK)
{
fprintf(stderr,"Unable to disable all output formats: %s\n", mpg123_plain_strerror(ret));
return -1;
}
// Use float output
ret = mpg123_format(m, 44100, MPG123_MONO | MPG123_STEREO, MPG123_ENC_FLOAT_32);
if(ret != MPG123_OK)
{
fprintf(stderr,"Unable to set float output formats: %s\n", mpg123_plain_strerror(ret));
return -1;
}
ret = mpg123_open_feed(m);
if(ret != MPG123_OK)
{
fprintf(stderr,"Unable open feed: %s\n", mpg123_plain_strerror(ret));
return -1;
}
in = fopen(argv[1], "rb");
if(in == NULL)
{
fprintf(stderr,"Unable to open input file %s\n", argv[1]);
return -1;
}
out = fopen(argv[2], "wb");
if(out == NULL)
{
fprintf(stderr,"Unable to open output file %s\n", argv[2]);
return -1;
}
fprintf(stderr, "Seeking...\n");
/* That condition is tricky... parentheses are crucial... */
while((ret = mpg123_feedseek(m, 95000, SEEK_SET, &inoffset)) == MPG123_NEED_MORE)
{
len = fread(buf, sizeof(unsigned char), INBUFF, in);
if(len <= 0)
break;
inc += len;
state = mpg123_feed(m, buf, len);
if(state == MPG123_ERR)
{
fprintf(stderr, "Error: %s", mpg123_strerror(m));
return -1;
}
}
if(ret == MPG123_ERR)
{
fprintf(stderr, "Feedseek failed: %s\n", mpg123_strerror(m));
return -1;
}
fseek(in, inoffset, SEEK_SET);
fprintf(stderr, "Starting decode...\n");
while(1)
{
len = fread(buf, sizeof(unsigned char), INBUFF, in);
if(len <= 0)
break;
inc += len;
ret = mpg123_feed(m, buf, len);
while(ret != MPG123_ERR && ret != MPG123_NEED_MORE)
{
ret = mpg123_decode_frame(m, &num, &audio, &bytes);
if(ret == MPG123_NEW_FORMAT)
{
mpg123_getformat(m, &rate, &channels, &enc);
initwavformat();
initwav();
fprintf(stderr, "New format: %li Hz, %i channels, encoding value %i\n", rate, channels, enc);
}
fwrite(audio, sizeof(unsigned char), bytes, out);
outc += bytes;
}
if(ret == MPG123_ERR)
{
fprintf(stderr, "Error: %s", mpg123_strerror(m));
break;
}
}
fprintf(stderr, "Finished\n", (unsigned long)inc, (unsigned long)outc);
closewav();
fclose(out);
fclose(in);
mpg123_delete(m);
mpg123_exit();
return 0;
}

172
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/*
id3dump: Print ID3 tags of files, scanned using libmpg123.
copyright 2007 by the mpg123 project - free software under the terms of the LGPL 2.1
see COPYING and AUTHORS files in distribution or http://mpg123.org
initially written by Thomas Orgis
*/
#include "mpg123.h"
#include <string.h>
#include "stdio.h"
#include "sys/types.h"
/* Helper for v1 printing, get these strings their zero byte. */
void safe_print(char* name, char *data, size_t size)
{
char safe[31];
if(size>30) return;
memcpy(safe, data, size);
safe[size] = 0;
printf("%s: %s\n", name, safe);
}
/* Print out ID3v1 info. */
void print_v1(mpg123_id3v1 *v1)
{
safe_print("Title", v1->title, sizeof(v1->title));
safe_print("Artist", v1->artist, sizeof(v1->artist));
safe_print("Album", v1->album, sizeof(v1->album));
safe_print("Year", v1->year, sizeof(v1->year));
safe_print("Comment", v1->comment, sizeof(v1->comment));
printf("Genre: %i", v1->genre);
}
/* Split up a number of lines separated by \n, \r, both or just zero byte
and print out each line with specified prefix. */
void print_lines(const char* prefix, mpg123_string *inlines)
{
size_t i;
int hadcr = 0, hadlf = 0;
char *lines = NULL;
char *line = NULL;
size_t len = 0;
if(inlines != NULL && inlines->fill)
{
lines = inlines->p;
len = inlines->fill;
}
else return;
line = lines;
for(i=0; i<len; ++i)
{
if(lines[i] == '\n' || lines[i] == '\r' || lines[i] == 0)
{
char save = lines[i]; /* saving, changing, restoring a byte in the data */
if(save == '\n') ++hadlf;
if(save == '\r') ++hadcr;
if((hadcr || hadlf) && hadlf % 2 == 0 && hadcr % 2 == 0) line = "";
if(line)
{
lines[i] = 0;
printf("%s%s\n", prefix, line);
line = NULL;
lines[i] = save;
}
}
else
{
hadlf = hadcr = 0;
if(line == NULL) line = lines+i;
}
}
}
/* Print out the named ID3v2 fields. */
void print_v2(mpg123_id3v2 *v2)
{
print_lines("Title: ", v2->title);
print_lines("Artist: ", v2->artist);
print_lines("Album: ", v2->album);
print_lines("Year: ", v2->year);
print_lines("Comment: ", v2->comment);
print_lines("Genre: ", v2->genre);
}
/* Print out all stored ID3v2 fields with their 4-character IDs. */
void print_raw_v2(mpg123_id3v2 *v2)
{
size_t i;
for(i=0; i<v2->texts; ++i)
{
char id[5];
memcpy(id, v2->text[i].id, 4);
id[4] = 0;
printf("%s\n", id);
print_lines(" ", &v2->text[i].text);
}
for(i=0; i<v2->extras; ++i)
{
char id[5];
memcpy(id, v2->extra[i].id, 4);
id[4] = 0;
printf( "%s description(%s)\n",
id,
v2->extra[i].description.fill ? v2->extra[i].description.p : "" );
print_lines(" ", &v2->extra[i].text);
}
for(i=0; i<v2->comments; ++i)
{
char id[5];
char lang[4];
memcpy(id, v2->comment_list[i].id, 4);
id[4] = 0;
memcpy(lang, v2->comment_list[i].lang, 3);
lang[3] = 0;
printf( "%s description(%s) language(%s): \n",
id,
v2->comment_list[i].description.fill ? v2->comment_list[i].description.p : "",
lang );
print_lines(" ", &v2->comment_list[i].text);
}
}
int main(int argc, char **argv)
{
int i;
mpg123_handle* m;
if(argc < 2)
{
fprintf(stderr, "\nI will print some ID3 tag fields of MPEG audio files.\n");
fprintf(stderr, "\nUsage: %s <mpeg audio file list>\n\n", argv[0]);
return -1;
}
mpg123_init();
m = mpg123_new(NULL, NULL);
for(i=1; i < argc; ++i)
{
mpg123_id3v1 *v1;
mpg123_id3v2 *v2;
int meta;
if(mpg123_open(m, argv[i]) != MPG123_OK)
{
fprintf(stderr, "Cannot open %s: %s\n", argv[i], mpg123_strerror(m));
continue;
}
mpg123_scan(m);
meta = mpg123_meta_check(m);
if(meta & MPG123_ID3 && mpg123_id3(m, &v1, &v2) == MPG123_OK)
{
printf("Tag data on %s:\n", argv[i]);
printf("\n==== ID3v1 ====\n");
if(v1 != NULL) print_v1(v1);
printf("\n==== ID3v2 ====\n");
if(v2 != NULL) print_v2(v2);
printf("\n==== ID3v2 Raw frames ====\n");
if(v2 != NULL) print_raw_v2(v2);
}
else printf("Nothing found for %s.\n", argv[i]);
mpg123_close(m);
}
mpg123_delete(m);
mpg123_exit();
return 0;
}

103
src/contrib/mpg123decoder/mpg123/doc/examples/mpg123_to_wav.c Normal file
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/*
mpg123_to_wav.c
copyright 2007 by the mpg123 project - free software under the terms of the LGPL 2.1
see COPYING and AUTHORS files in distribution or http://mpg123.org
initially written by Nicholas Humfrey
*/
#include <stdio.h>
#include <strings.h>
#include <mpg123.h>
#include <sndfile.h>
void usage()
{
printf("Usage: mpg123_to_wav <input> <output>\n");
exit(99);
}
void cleanup(mpg123_handle *mh)
{
/* It's really to late for error checks here;-) */
mpg123_close(mh);
mpg123_delete(mh);
mpg123_exit();
}
int main(int argc, char *argv[])
{
SNDFILE* sndfile = NULL;
SF_INFO sfinfo;
mpg123_handle *mh = NULL;
unsigned char* buffer = NULL;
size_t buffer_size = 0;
size_t done = 0;
int channels = 0, encoding = 0;
long rate = 0;
int err = MPG123_OK;
off_t samples = 0;
if (argc!=3) usage();
printf( "Input file: %s\n", argv[1]);
printf( "Output file: %s\n", argv[2]);
err = mpg123_init();
if( err != MPG123_OK || (mh = mpg123_new(NULL, &err)) == NULL
/* Let mpg123 work with the file, that excludes MPG123_NEED_MORE messages. */
|| mpg123_open(mh, argv[1]) != MPG123_OK
/* Peek into track and get first output format. */
|| mpg123_getformat(mh, &rate, &channels, &encoding) != MPG123_OK )
{
fprintf( stderr, "Trouble with mpg123: %s\n",
mh==NULL ? mpg123_plain_strerror(err) : mpg123_strerror(mh) );
cleanup(mh);
return -1;
}
if(encoding != MPG123_ENC_SIGNED_16)
{ /* Signed 16 is the default output format anyways; it would actually by only different if we forced it.
So this check is here just for this explanation. */
cleanup(mh);
fprintf(stderr, "Bad encoding: 0x%x!\n", encoding);
return -2;
}
/* Ensure that this output format will not change (it could, when we allow it). */
mpg123_format_none(mh);
mpg123_format(mh, rate, channels, encoding);
/* Buffer could be almost any size here, mpg123_outblock() is just some recommendation.
Important, especially for sndfile writing, is that the size is a multiple of sample size. */
buffer_size = mpg123_outblock( mh );
buffer = malloc( buffer_size );
bzero(&sfinfo, sizeof(sfinfo) );
sfinfo.samplerate = rate;
sfinfo.channels = channels;
sfinfo.format = SF_FORMAT_WAV|SF_FORMAT_PCM_16;
printf("Creating 16bit WAV with %i channels and %liHz.\n", channels, rate);
sndfile = sf_open(argv[2], SFM_WRITE, &sfinfo);
if(sndfile == NULL){ fprintf(stderr, "Cannot open output file!\n"); cleanup(mh); return -2; }
do
{
err = mpg123_read( mh, buffer, buffer_size, &done );
sf_write_short( sndfile, (short*)buffer, done/sizeof(short) );
samples += done/sizeof(short);
/* We are not in feeder mode, so MPG123_OK, MPG123_ERR and MPG123_NEW_FORMAT are the only possibilities.
We do not handle a new format, MPG123_DONE is the end... so abort on anything not MPG123_OK. */
} while (err==MPG123_OK);
if(err != MPG123_DONE)
fprintf( stderr, "Warning: Decoding ended prematurely because: %s\n",
err == MPG123_ERR ? mpg123_strerror(mh) : mpg123_plain_strerror(err) );
sf_close( sndfile );
samples /= channels;
printf("%li samples written.\n", (long)samples);
cleanup(mh);
return 0;
}

83
src/contrib/mpg123decoder/mpg123/doc/examples/mpglib.c Normal file
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/*
mpglib: test program for libmpg123, in the style of the legacy mpglib test program
copyright 2007 by the mpg123 project - free software under the terms of the LGPL 2.1
see COPYING and AUTHORS files in distribution or http://mpg123.org
initially written by Thomas Orgis
*/
#include <mpg123.h>
/* unistd.h is not available under MSVC,
io.h defines the read and write functions */
#ifndef _MSC_VER
#include <unistd.h>
#else
#include <io.h>
#endif
#include <stdio.h>
#define INBUFF 16384
#define OUTBUFF 32768
int main(int argc, char **argv)
{
size_t size;
unsigned char buf[INBUFF]; /* input buffer */
unsigned char out[OUTBUFF]; /* output buffer */
ssize_t len;
int ret;
size_t in = 0, outc = 0;
mpg123_handle *m;
mpg123_init();
m = mpg123_new(argc > 1 ? argv[1] : NULL, &ret);
if(m == NULL)
{
fprintf(stderr,"Unable to create mpg123 handle: %s\n", mpg123_plain_strerror(ret));
return -1;
}
mpg123_param(m, MPG123_VERBOSE, 2, 0); /* Brabble a bit about the parsing/decoding. */
/* Now mpg123 is being prepared for feeding. The main loop will read chunks from stdin and feed them to mpg123;
then take decoded data as available to write to stdout. */
mpg123_open_feed(m);
if(m == NULL) return -1;
fprintf(stderr, "Feed me some MPEG audio to stdin, I will decode to stdout.\n");
while(1) /* Read and write until everything is through. */
{
len = read(0,buf,INBUFF);
if(len <= 0)
{
fprintf(stderr, "input data end\n");
break;
}
in += len;
/* Feed input chunk and get first chunk of decoded audio. */
ret = mpg123_decode(m,buf,len,out,OUTBUFF,&size);
if(ret == MPG123_NEW_FORMAT)
{
long rate;
int channels, enc;
mpg123_getformat(m, &rate, &channels, &enc);
fprintf(stderr, "New format: %li Hz, %i channels, encoding value %i\n", rate, channels, enc);
}
write(1,out,size);
outc += size;
while(ret != MPG123_ERR && ret != MPG123_NEED_MORE)
{ /* Get all decoded audio that is available now before feeding more input. */
ret = mpg123_decode(m,NULL,0,out,OUTBUFF,&size);
write(1,out,size);
outc += size;
}
if(ret == MPG123_ERR){ fprintf(stderr, "some error: %s", mpg123_strerror(m)); break; }
}
fprintf(stderr, "%lu bytes in, %lu bytes out\n", (unsigned long)in, (unsigned long)outc);
/* Done decoding, now just clean up and leave. */
mpg123_delete(m);
mpg123_exit();
return 0;
}

47
src/contrib/mpg123decoder/mpg123/doc/examples/scan.c Normal file
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/*
scan: Estimate length (sample count) of a mpeg file and compare to length from exact scan.
copyright 2007 by the mpg123 project - free software under the terms of the LGPL 2.1
see COPYING and AUTHORS files in distribution or http://mpg123.org
initially written by Thomas Orgis
*/
/* Note the lack of error checking here.
While it would be nicer to inform the user about troubles, libmpg123 is designed _not_ to bite you on operations with invalid handles , etc.
You just jet invalid results on invalid operations... */
#include <mpg123.h>
#include <stdio.h>
int main(int argc, char **argv)
{
mpg123_handle *m;
int i;
if(argc < 2)
{
fprintf(stderr, "\nI will give you the estimated and exact sample lengths of MPEG audio files.\n");
fprintf(stderr, "\nUsage: %s <mpeg audio file list>\n\n", argv[0]);
return -1;
}
mpg123_init();
m = mpg123_new(NULL, NULL);
mpg123_param(m, MPG123_RESYNC_LIMIT, -1, 0); /* New in library version 0.0.1 . */
for(i = 1; i < argc; ++i)
{
off_t a, b;
mpg123_open(m, argv[i]);
a = mpg123_length(m);
mpg123_scan(m);
b = mpg123_length(m);
mpg123_close(m);
printf("File %i: estimated %li vs. scanned %li\n", i, (long)a, (long)b);
}
mpg123_delete(m);
mpg123_exit();
return 0;
}

84
src/contrib/mpg123decoder/mpg123/doc/libmpg123_speed.txt Normal file
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This is historic... one should make a new investigation.
What I can say that a quick test of pre0.59s versus 1.7.3 with generic decoder on my x86-64 GNU/Linux box is not able to call a winner (or looser, for that matter).
Though, 1.8.0 will make the new libmpg123 a winner, because there is new optimization code going on!
The move to libmpg123 means some more code separation / interfacing and especially the move of any local static variables into the mpg123_handle to make multiple stream handling possible.
That may very well have an impact on performance of the mpg123 decoder.
I made some tests, even using gcc's -pg option and gprof, with mixed result: SSE and MMX on my Thinkpad X31 are slower, especially the asm synth funtion, while the generic code is fine.
On the other hand, on a K6-3+ using the same gcc version 4.1.2, the library based mpg123 is _faster_ for MMX and 3DNowExt.
Epecially the mmx synth is faster... while the 3DNowExt synth is slower, too (it's the same code as SSE synth, just calling different dct64) - but speedups in other regions still make 3DNowExt of the library mpg123 more efficient.
What I can clearly say is that dropping the multi-cpu support via ./configure --with-cpu does help in for both monolithic and library mpg123, but that is no wonder as it removes indirection.
The main point stays, though: On my Thinkpad the library is slow, on the K6-3+ it's fast.
What's the point to get here? I am not sure. We're depending on the compiler optimization (btw: Intel Compiler doesn't change the relation for the Thinkpad; not tested on the K6).
I guess that for my Thinkpad another gcc version could invert the picture again...
Also, I am not sure how far I should trust the gprof analysis... but it can be right; even when there is no apparent cause for the speed difference in the code itself, it could be some effect of cache and memory access.
Some reordering of instructions and data... for sure that happened.
I'll need further numbers to conclude anything about the (positive/negative) impact my code changes have.
OK, ran the test of trunk against branches/mpg123lib on my media box with AMD Geode (AthlonXP, actually):
thomas@kiste:~$ for i in mpg123-lib mpg123-trunk; do for cpu in mmx 3dnowext sse; do echo $i $cpu; time $i/src/mpg123 --cpu $cpu -q -t /thorma/var/music/metallica/ride_the_lightning/*.mp3; done; done
mpg123-lib mmx
real 0m25.949s
user 0m25.395s
sys 0m0.534s
mpg123-lib 3dnowext
real 0m25.442s
user 0m24.863s
sys 0m0.558s
mpg123-lib sse
real 0m25.794s
user 0m25.214s
sys 0m0.562s
mpg123-trunk mmx
real 0m26.650s
user 0m26.004s
sys 0m0.626s
mpg123-trunk 3dnowext
real 0m25.886s
user 0m25.262s
sys 0m0.600s
mpg123-trunk sse
real 0m25.695s
user 0m25.136s
sys 0m0.539s
thomas@kiste:~$ for i in mpg123-lib mpg123-trunk; do for cpu in 3dnow; do echo $i $cpu; time $i/src/mpg123 --cpu $cpu -q -t /thorma/var/music/metallica/ride_the_lightning/*.mp3; done; done
mpg123-lib 3dnow
real 0m33.011s
user 0m32.365s
sys 0m0.621s
mpg123-trunk 3dnow
real 0m32.830s
user 0m32.192s
sys 0m0.619s
You can't really make a decision there. It's tight.
What worries me a bit is the total loose of 3DNow against MMX - should it be that drastic?
Well, it's higher quality, at least.
Addendum: The game on an K6-3+
On mpg123 < 1.8.0, he 3DNowExt decoder used to be slower than the 3DNow decoder. Only recently it has been observed, that the simplification of the runtime decoder choice code sped up that one significantly, towards the same performance level as the single-decoder build of mpg123 1.6.4 (-with-cpu=3dnowext_alone having broken build in later versions:-/).
We are talking about a difference of 20% here... there is something special about the K6-3+ that makes is that sensitive to how the function pointers get thrown around.
Example numbers: Dynamic x86 build of 1.6.4, 3DNowExt needs 5.9 s, 3DNow 5.6 s.
3DNowExt-only build: 4.9 s
3DNow-only build: 5.6 s
Now... dynamic build of mpg123 trunk of 2010-05-24: 3DNowExt 4.9 s, 3DNow 5.6 s. That's how it should be. One might investigate how exactly the old ways before mpg123 1.8 worked against the K6-3+ ... possibly helping performance issues seen with the mpg123 coded for MPlayer on that CPU.
--
Thomas.

37
src/contrib/mpg123decoder/mpg123/equalize.dat Normal file
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# in every line, there are two values. One for the left
# and one for the right cahnnel.
# the first line is the multiplicator for the lowest frequency band
# the 32th line for the highest freq. band
#
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0
1.0 1.0

11
src/contrib/mpg123decoder/mpg123/libmpg123.pc.in Normal file
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prefix=@prefix@
exec_prefix=@exec_prefix@
libdir=@libdir@
includedir=@includedir@
Name: libmpg123
Description: An optimised MPEG Audio decoder
Requires:
Version: @PACKAGE_VERSION@
Libs: -L${libdir} -lmpg123
Cflags: -I${includedir}

34
src/contrib/mpg123decoder/mpg123/m4/addrconfig.m4 Normal file
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dnl Check whether the AI_ADDRCONFIG flag can be used with getaddrinfo
dnl Taken from APR ...
AC_DEFUN([APR_CHECK_GETADDRINFO_ADDRCONFIG], [
AC_CACHE_CHECK(for working AI_ADDRCONFIG, apr_cv_gai_addrconfig, [
AC_TRY_RUN([
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
int main(int argc, char **argv) {
struct addrinfo hints, *ai;
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_ADDRCONFIG;
return getaddrinfo("localhost", NULL, &hints, &ai) != 0;
}], [apr_cv_gai_addrconfig=yes],
[apr_cv_gai_addrconfig=no],
[apr_cv_gai_addrconfig=no])])
if test $apr_cv_gai_addrconfig = yes; then
AC_DEFINE(HAVE_GAI_ADDRCONFIG, 1, [Define if getaddrinfo accepts the AI_ADDRCONFIG flag])
fi
])

7357
src/contrib/mpg123decoder/mpg123/m4/libtool.m4 vendored Normal file
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368
src/contrib/mpg123decoder/mpg123/m4/ltoptions.m4 vendored Normal file
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# Helper functions for option handling. -*- Autoconf -*-
#
# Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
# Written by Gary V. Vaughan, 2004
#
# This file is free software; the Free Software Foundation gives
# unlimited permission to copy and/or distribute it, with or without
# modifications, as long as this notice is preserved.
# serial 6 ltoptions.m4
# This is to help aclocal find these macros, as it can't see m4_define.
AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])])
# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME)
# ------------------------------------------
m4_define([_LT_MANGLE_OPTION],
[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])])
# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME)
# ---------------------------------------
# Set option OPTION-NAME for macro MACRO-NAME, and if there is a
# matching handler defined, dispatch to it. Other OPTION-NAMEs are
# saved as a flag.
m4_define([_LT_SET_OPTION],
[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl
m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]),
_LT_MANGLE_DEFUN([$1], [$2]),
[m4_warning([Unknown $1 option `$2'])])[]dnl
])
# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET])
# ------------------------------------------------------------
# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
m4_define([_LT_IF_OPTION],
[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])])
# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET)
# -------------------------------------------------------
# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME
# are set.
m4_define([_LT_UNLESS_OPTIONS],
[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
[m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option),
[m4_define([$0_found])])])[]dnl
m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3
])[]dnl
])
# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST)
# ----------------------------------------
# OPTION-LIST is a space-separated list of Libtool options associated
# with MACRO-NAME. If any OPTION has a matching handler declared with
# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about
# the unknown option and exit.
m4_defun([_LT_SET_OPTIONS],
[# Set options
m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
[_LT_SET_OPTION([$1], _LT_Option)])
m4_if([$1],[LT_INIT],[
dnl
dnl Simply set some default values (i.e off) if boolean options were not
dnl specified:
_LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no
])
_LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no
])
dnl
dnl If no reference was made to various pairs of opposing options, then
dnl we run the default mode handler for the pair. For example, if neither
dnl `shared' nor `disable-shared' was passed, we enable building of shared
dnl archives by default:
_LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED])
_LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC])
_LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC])
_LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install],
[_LT_ENABLE_FAST_INSTALL])
])
])# _LT_SET_OPTIONS
## --------------------------------- ##
## Macros to handle LT_INIT options. ##
## --------------------------------- ##
# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME)
# -----------------------------------------
m4_define([_LT_MANGLE_DEFUN],
[[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])])
# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE)
# -----------------------------------------------
m4_define([LT_OPTION_DEFINE],
[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl
])# LT_OPTION_DEFINE
# dlopen
# ------
LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes
])
AU_DEFUN([AC_LIBTOOL_DLOPEN],
[_LT_SET_OPTION([LT_INIT], [dlopen])
AC_DIAGNOSE([obsolete],
[$0: Remove this warning and the call to _LT_SET_OPTION when you
put the `dlopen' option into LT_INIT's first parameter.])
])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], [])
# win32-dll
# ---------
# Declare package support for building win32 dll's.
LT_OPTION_DEFINE([LT_INIT], [win32-dll],
[enable_win32_dll=yes
case $host in
*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-cegcc*)
AC_CHECK_TOOL(AS, as, false)
AC_CHECK_TOOL(DLLTOOL, dlltool, false)
AC_CHECK_TOOL(OBJDUMP, objdump, false)
;;
esac
test -z "$AS" && AS=as
_LT_DECL([], [AS], [0], [Assembler program])dnl
test -z "$DLLTOOL" && DLLTOOL=dlltool
_LT_DECL([], [DLLTOOL], [0], [DLL creation program])dnl
test -z "$OBJDUMP" && OBJDUMP=objdump
_LT_DECL([], [OBJDUMP], [0], [Object dumper program])dnl
])# win32-dll
AU_DEFUN([AC_LIBTOOL_WIN32_DLL],
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
_LT_SET_OPTION([LT_INIT], [win32-dll])
AC_DIAGNOSE([obsolete],
[$0: Remove this warning and the call to _LT_SET_OPTION when you
put the `win32-dll' option into LT_INIT's first parameter.])
])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [])
# _LT_ENABLE_SHARED([DEFAULT])
# ----------------------------
# implement the --enable-shared flag, and supports the `shared' and
# `disable-shared' LT_INIT options.
# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'.
m4_define([_LT_ENABLE_SHARED],
[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl
AC_ARG_ENABLE([shared],
[AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@],
[build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])],
[p=${PACKAGE-default}
case $enableval in
yes) enable_shared=yes ;;
no) enable_shared=no ;;
*)
enable_shared=no
# Look at the argument we got. We use all the common list separators.
lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
for pkg in $enableval; do
IFS="$lt_save_ifs"
if test "X$pkg" = "X$p"; then
enable_shared=yes
fi
done
IFS="$lt_save_ifs"
;;
esac],
[enable_shared=]_LT_ENABLE_SHARED_DEFAULT)
_LT_DECL([build_libtool_libs], [enable_shared], [0],
[Whether or not to build shared libraries])
])# _LT_ENABLE_SHARED
LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])])
LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])])
# Old names:
AC_DEFUN([AC_ENABLE_SHARED],
[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared])
])
AC_DEFUN([AC_DISABLE_SHARED],
[_LT_SET_OPTION([LT_INIT], [disable-shared])
])
AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)])
AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AM_ENABLE_SHARED], [])
dnl AC_DEFUN([AM_DISABLE_SHARED], [])
# _LT_ENABLE_STATIC([DEFAULT])
# ----------------------------
# implement the --enable-static flag, and support the `static' and
# `disable-static' LT_INIT options.
# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'.
m4_define([_LT_ENABLE_STATIC],
[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl
AC_ARG_ENABLE([static],
[AS_HELP_STRING([--enable-static@<:@=PKGS@:>@],
[build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])],
[p=${PACKAGE-default}
case $enableval in
yes) enable_static=yes ;;
no) enable_static=no ;;
*)
enable_static=no
# Look at the argument we got. We use all the common list separators.
lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
for pkg in $enableval; do
IFS="$lt_save_ifs"
if test "X$pkg" = "X$p"; then
enable_static=yes
fi
done
IFS="$lt_save_ifs"
;;
esac],
[enable_static=]_LT_ENABLE_STATIC_DEFAULT)
_LT_DECL([build_old_libs], [enable_static], [0],
[Whether or not to build static libraries])
])# _LT_ENABLE_STATIC
LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])])
LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])])
# Old names:
AC_DEFUN([AC_ENABLE_STATIC],
[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static])
])
AC_DEFUN([AC_DISABLE_STATIC],
[_LT_SET_OPTION([LT_INIT], [disable-static])
])
AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)])
AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AM_ENABLE_STATIC], [])
dnl AC_DEFUN([AM_DISABLE_STATIC], [])
# _LT_ENABLE_FAST_INSTALL([DEFAULT])
# ----------------------------------
# implement the --enable-fast-install flag, and support the `fast-install'
# and `disable-fast-install' LT_INIT options.
# DEFAULT is either `yes' or `no'. If omitted, it defaults to `yes'.
m4_define([_LT_ENABLE_FAST_INSTALL],
[m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl
AC_ARG_ENABLE([fast-install],
[AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@],
[optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])],
[p=${PACKAGE-default}
case $enableval in
yes) enable_fast_install=yes ;;
no) enable_fast_install=no ;;
*)
enable_fast_install=no
# Look at the argument we got. We use all the common list separators.
lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
for pkg in $enableval; do
IFS="$lt_save_ifs"
if test "X$pkg" = "X$p"; then
enable_fast_install=yes
fi
done
IFS="$lt_save_ifs"
;;
esac],
[enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT)
_LT_DECL([fast_install], [enable_fast_install], [0],
[Whether or not to optimize for fast installation])dnl
])# _LT_ENABLE_FAST_INSTALL
LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])])
LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])])
# Old names:
AU_DEFUN([AC_ENABLE_FAST_INSTALL],
[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install])
AC_DIAGNOSE([obsolete],
[$0: Remove this warning and the call to _LT_SET_OPTION when you put
the `fast-install' option into LT_INIT's first parameter.])
])
AU_DEFUN([AC_DISABLE_FAST_INSTALL],
[_LT_SET_OPTION([LT_INIT], [disable-fast-install])
AC_DIAGNOSE([obsolete],
[$0: Remove this warning and the call to _LT_SET_OPTION when you put
the `disable-fast-install' option into LT_INIT's first parameter.])
])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], [])
dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], [])
# _LT_WITH_PIC([MODE])
# --------------------
# implement the --with-pic flag, and support the `pic-only' and `no-pic'
# LT_INIT options.
# MODE is either `yes' or `no'. If omitted, it defaults to `both'.
m4_define([_LT_WITH_PIC],
[AC_ARG_WITH([pic],
[AS_HELP_STRING([--with-pic],
[try to use only PIC/non-PIC objects @<:@default=use both@:>@])],
[pic_mode="$withval"],
[pic_mode=default])
test -z "$pic_mode" && pic_mode=m4_default([$1], [default])
_LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl
])# _LT_WITH_PIC
LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])])
LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])])
# Old name:
AU_DEFUN([AC_LIBTOOL_PICMODE],
[_LT_SET_OPTION([LT_INIT], [pic-only])
AC_DIAGNOSE([obsolete],
[$0: Remove this warning and the call to _LT_SET_OPTION when you
put the `pic-only' option into LT_INIT's first parameter.])
])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LIBTOOL_PICMODE], [])
## ----------------- ##
## LTDL_INIT Options ##
## ----------------- ##
m4_define([_LTDL_MODE], [])
LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive],
[m4_define([_LTDL_MODE], [nonrecursive])])
LT_OPTION_DEFINE([LTDL_INIT], [recursive],
[m4_define([_LTDL_MODE], [recursive])])
LT_OPTION_DEFINE([LTDL_INIT], [subproject],
[m4_define([_LTDL_MODE], [subproject])])
m4_define([_LTDL_TYPE], [])
LT_OPTION_DEFINE([LTDL_INIT], [installable],
[m4_define([_LTDL_TYPE], [installable])])
LT_OPTION_DEFINE([LTDL_INIT], [convenience],
[m4_define([_LTDL_TYPE], [convenience])])

123
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# ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*-
#
# Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
# Written by Gary V. Vaughan, 2004
#
# This file is free software; the Free Software Foundation gives
# unlimited permission to copy and/or distribute it, with or without
# modifications, as long as this notice is preserved.
# serial 6 ltsugar.m4
# This is to help aclocal find these macros, as it can't see m4_define.
AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
# lt_join(SEP, ARG1, [ARG2...])
# -----------------------------
# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their
# associated separator.
# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier
# versions in m4sugar had bugs.
m4_define([lt_join],
[m4_if([$#], [1], [],
[$#], [2], [[$2]],
[m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])])
m4_define([_lt_join],
[m4_if([$#$2], [2], [],
[m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])])
# lt_car(LIST)
# lt_cdr(LIST)
# ------------
# Manipulate m4 lists.
# These macros are necessary as long as will still need to support
# Autoconf-2.59 which quotes differently.
m4_define([lt_car], [[$1]])
m4_define([lt_cdr],
[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])],
[$#], 1, [],
[m4_dquote(m4_shift($@))])])
m4_define([lt_unquote], $1)
# lt_append(MACRO-NAME, STRING, [SEPARATOR])
# ------------------------------------------
# Redefine MACRO-NAME to hold its former content plus `SEPARATOR'`STRING'.
# Note that neither SEPARATOR nor STRING are expanded; they are appended
# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked).
# No SEPARATOR is output if MACRO-NAME was previously undefined (different
# than defined and empty).
#
# This macro is needed until we can rely on Autoconf 2.62, since earlier
# versions of m4sugar mistakenly expanded SEPARATOR but not STRING.
m4_define([lt_append],
[m4_define([$1],
m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])])
# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...])
# ----------------------------------------------------------
# Produce a SEP delimited list of all paired combinations of elements of
# PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list
# has the form PREFIXmINFIXSUFFIXn.
# Needed until we can rely on m4_combine added in Autoconf 2.62.
m4_define([lt_combine],
[m4_if(m4_eval([$# > 3]), [1],
[m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl
[[m4_foreach([_Lt_prefix], [$2],
[m4_foreach([_Lt_suffix],
]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[,
[_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])])
# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ])
# -----------------------------------------------------------------------
# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited
# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ.
m4_define([lt_if_append_uniq],
[m4_ifdef([$1],
[m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1],
[lt_append([$1], [$2], [$3])$4],
[$5])],
[lt_append([$1], [$2], [$3])$4])])
# lt_dict_add(DICT, KEY, VALUE)
# -----------------------------
m4_define([lt_dict_add],
[m4_define([$1($2)], [$3])])
# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE)
# --------------------------------------------
m4_define([lt_dict_add_subkey],
[m4_define([$1($2:$3)], [$4])])
# lt_dict_fetch(DICT, KEY, [SUBKEY])
# ----------------------------------
m4_define([lt_dict_fetch],
[m4_ifval([$3],
m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]),
m4_ifdef([$1($2)], [m4_defn([$1($2)])]))])
# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE])
# -----------------------------------------------------------------
m4_define([lt_if_dict_fetch],
[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4],
[$5],
[$6])])
# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...])
# --------------------------------------------------------------
m4_define([lt_dict_filter],
[m4_if([$5], [], [],
[lt_join(m4_quote(m4_default([$4], [[, ]])),
lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]),
[lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl
])

23
src/contrib/mpg123decoder/mpg123/m4/ltversion.m4 vendored Normal file
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# ltversion.m4 -- version numbers -*- Autoconf -*-
#
# Copyright (C) 2004 Free Software Foundation, Inc.
# Written by Scott James Remnant, 2004
#
# This file is free software; the Free Software Foundation gives
# unlimited permission to copy and/or distribute it, with or without
# modifications, as long as this notice is preserved.
# Generated from ltversion.in.
# serial 3017 ltversion.m4
# This file is part of GNU Libtool
m4_define([LT_PACKAGE_VERSION], [2.2.6b])
m4_define([LT_PACKAGE_REVISION], [1.3017])
AC_DEFUN([LTVERSION_VERSION],
[macro_version='2.2.6b'
macro_revision='1.3017'
_LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?])
_LT_DECL(, macro_revision, 0)
])

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# lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*-
#
# Copyright (C) 2004, 2005, 2007 Free Software Foundation, Inc.
# Written by Scott James Remnant, 2004.
#
# This file is free software; the Free Software Foundation gives
# unlimited permission to copy and/or distribute it, with or without
# modifications, as long as this notice is preserved.
# serial 4 lt~obsolete.m4
# These exist entirely to fool aclocal when bootstrapping libtool.
#
# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN)
# which have later been changed to m4_define as they aren't part of the
# exported API, or moved to Autoconf or Automake where they belong.
#
# The trouble is, aclocal is a bit thick. It'll see the old AC_DEFUN
# in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us
# using a macro with the same name in our local m4/libtool.m4 it'll
# pull the old libtool.m4 in (it doesn't see our shiny new m4_define
# and doesn't know about Autoconf macros at all.)
#
# So we provide this file, which has a silly filename so it's always
# included after everything else. This provides aclocal with the
# AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything
# because those macros already exist, or will be overwritten later.
# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6.
#
# Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here.
# Yes, that means every name once taken will need to remain here until
# we give up compatibility with versions before 1.7, at which point
# we need to keep only those names which we still refer to.
# This is to help aclocal find these macros, as it can't see m4_define.
AC_DEFUN([LTOBSOLETE_VERSION], [m4_if([1])])
m4_ifndef([AC_LIBTOOL_LINKER_OPTION], [AC_DEFUN([AC_LIBTOOL_LINKER_OPTION])])
m4_ifndef([AC_PROG_EGREP], [AC_DEFUN([AC_PROG_EGREP])])
m4_ifndef([_LT_AC_PROG_ECHO_BACKSLASH], [AC_DEFUN([_LT_AC_PROG_ECHO_BACKSLASH])])
m4_ifndef([_LT_AC_SHELL_INIT], [AC_DEFUN([_LT_AC_SHELL_INIT])])
m4_ifndef([_LT_AC_SYS_LIBPATH_AIX], [AC_DEFUN([_LT_AC_SYS_LIBPATH_AIX])])
m4_ifndef([_LT_PROG_LTMAIN], [AC_DEFUN([_LT_PROG_LTMAIN])])
m4_ifndef([_LT_AC_TAGVAR], [AC_DEFUN([_LT_AC_TAGVAR])])
m4_ifndef([AC_LTDL_ENABLE_INSTALL], [AC_DEFUN([AC_LTDL_ENABLE_INSTALL])])
m4_ifndef([AC_LTDL_PREOPEN], [AC_DEFUN([AC_LTDL_PREOPEN])])
m4_ifndef([_LT_AC_SYS_COMPILER], [AC_DEFUN([_LT_AC_SYS_COMPILER])])
m4_ifndef([_LT_AC_LOCK], [AC_DEFUN([_LT_AC_LOCK])])
m4_ifndef([AC_LIBTOOL_SYS_OLD_ARCHIVE], [AC_DEFUN([AC_LIBTOOL_SYS_OLD_ARCHIVE])])
m4_ifndef([_LT_AC_TRY_DLOPEN_SELF], [AC_DEFUN([_LT_AC_TRY_DLOPEN_SELF])])
m4_ifndef([AC_LIBTOOL_PROG_CC_C_O], [AC_DEFUN([AC_LIBTOOL_PROG_CC_C_O])])
m4_ifndef([AC_LIBTOOL_SYS_HARD_LINK_LOCKS], [AC_DEFUN([AC_LIBTOOL_SYS_HARD_LINK_LOCKS])])
m4_ifndef([AC_LIBTOOL_OBJDIR], [AC_DEFUN([AC_LIBTOOL_OBJDIR])])
m4_ifndef([AC_LTDL_OBJDIR], [AC_DEFUN([AC_LTDL_OBJDIR])])
m4_ifndef([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH], [AC_DEFUN([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH])])
m4_ifndef([AC_LIBTOOL_SYS_LIB_STRIP], [AC_DEFUN([AC_LIBTOOL_SYS_LIB_STRIP])])
m4_ifndef([AC_PATH_MAGIC], [AC_DEFUN([AC_PATH_MAGIC])])
m4_ifndef([AC_PROG_LD_GNU], [AC_DEFUN([AC_PROG_LD_GNU])])
m4_ifndef([AC_PROG_LD_RELOAD_FLAG], [AC_DEFUN([AC_PROG_LD_RELOAD_FLAG])])
m4_ifndef([AC_DEPLIBS_CHECK_METHOD], [AC_DEFUN([AC_DEPLIBS_CHECK_METHOD])])
m4_ifndef([AC_LIBTOOL_PROG_COMPILER_NO_RTTI], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_NO_RTTI])])
m4_ifndef([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE], [AC_DEFUN([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])])
m4_ifndef([AC_LIBTOOL_PROG_COMPILER_PIC], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_PIC])])
m4_ifndef([AC_LIBTOOL_PROG_LD_SHLIBS], [AC_DEFUN([AC_LIBTOOL_PROG_LD_SHLIBS])])
m4_ifndef([AC_LIBTOOL_POSTDEP_PREDEP], [AC_DEFUN([AC_LIBTOOL_POSTDEP_PREDEP])])
m4_ifndef([LT_AC_PROG_EGREP], [AC_DEFUN([LT_AC_PROG_EGREP])])
m4_ifndef([LT_AC_PROG_SED], [AC_DEFUN([LT_AC_PROG_SED])])
m4_ifndef([_LT_CC_BASENAME], [AC_DEFUN([_LT_CC_BASENAME])])
m4_ifndef([_LT_COMPILER_BOILERPLATE], [AC_DEFUN([_LT_COMPILER_BOILERPLATE])])
m4_ifndef([_LT_LINKER_BOILERPLATE], [AC_DEFUN([_LT_LINKER_BOILERPLATE])])
m4_ifndef([_AC_PROG_LIBTOOL], [AC_DEFUN([_AC_PROG_LIBTOOL])])
m4_ifndef([AC_LIBTOOL_SETUP], [AC_DEFUN([AC_LIBTOOL_SETUP])])
m4_ifndef([_LT_AC_CHECK_DLFCN], [AC_DEFUN([_LT_AC_CHECK_DLFCN])])
m4_ifndef([AC_LIBTOOL_SYS_DYNAMIC_LINKER], [AC_DEFUN([AC_LIBTOOL_SYS_DYNAMIC_LINKER])])
m4_ifndef([_LT_AC_TAGCONFIG], [AC_DEFUN([_LT_AC_TAGCONFIG])])
m4_ifndef([AC_DISABLE_FAST_INSTALL], [AC_DEFUN([AC_DISABLE_FAST_INSTALL])])
m4_ifndef([_LT_AC_LANG_CXX], [AC_DEFUN([_LT_AC_LANG_CXX])])
m4_ifndef([_LT_AC_LANG_F77], [AC_DEFUN([_LT_AC_LANG_F77])])
m4_ifndef([_LT_AC_LANG_GCJ], [AC_DEFUN([_LT_AC_LANG_GCJ])])
m4_ifndef([AC_LIBTOOL_RC], [AC_DEFUN([AC_LIBTOOL_RC])])
m4_ifndef([AC_LIBTOOL_LANG_C_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_C_CONFIG])])
m4_ifndef([_LT_AC_LANG_C_CONFIG], [AC_DEFUN([_LT_AC_LANG_C_CONFIG])])
m4_ifndef([AC_LIBTOOL_LANG_CXX_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_CXX_CONFIG])])
m4_ifndef([_LT_AC_LANG_CXX_CONFIG], [AC_DEFUN([_LT_AC_LANG_CXX_CONFIG])])
m4_ifndef([AC_LIBTOOL_LANG_F77_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_F77_CONFIG])])
m4_ifndef([_LT_AC_LANG_F77_CONFIG], [AC_DEFUN([_LT_AC_LANG_F77_CONFIG])])
m4_ifndef([AC_LIBTOOL_LANG_GCJ_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_GCJ_CONFIG])])
m4_ifndef([_LT_AC_LANG_GCJ_CONFIG], [AC_DEFUN([_LT_AC_LANG_GCJ_CONFIG])])
m4_ifndef([AC_LIBTOOL_LANG_RC_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_RC_CONFIG])])
m4_ifndef([_LT_AC_LANG_RC_CONFIG], [AC_DEFUN([_LT_AC_LANG_RC_CONFIG])])
m4_ifndef([AC_LIBTOOL_CONFIG], [AC_DEFUN([AC_LIBTOOL_CONFIG])])
m4_ifndef([_LT_AC_FILE_LTDLL_C], [AC_DEFUN([_LT_AC_FILE_LTDLL_C])])

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@ -0,0 +1,19 @@
#!/bin/sh
if test -e Makefile; then
make clean
fi
options="$@"
echo "using options: $options"
CFLAGS="-march=i686" ./configure --disable-modules --with-cpu=x86_dither $options &&
cd src/libmpg123 &&
make &&
cp .libs/libmpg123-0.dll ../../ &&
cp .libs/libmpg123-0.dll.def ../../libmpg123-0.def
cd ../../ &&
echo "Now run that lib tool... perhaps you want to strip, too.
Hints:
strip --strip-unneeded libmpg123-0.dll
lib /machine:i386 /def:libmpg123-0.def" ||
echo You got some trouble.

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.TH mpg123 1 "31 Jan 2008"
.SH NAME
mpg123 \- play audio MPEG 1.0/2.0/2.5 stream (layers 1, 2 and 3)
.SH SYNOPSIS
.B mpg123
[
.B options
]
.IR file " ... | " URL " ... | "
.B \-
.SH DESCRIPTION
.B mpg123
reads one or more
.IR file\^ s
(or standard input if ``\-'' is specified) or
.IR URL\^ s
and plays them on the audio device (default) or
outputs them to stdout.
.IR file\^ / URL
is assumed to be an MPEG audio bit stream.
.SH OPERANDS
The following operands are supported:
.TP 8
.IR file (s)
The path name(s) of one or more input files. They must be
valid MPEG-1.0/2.0/2.5 audio layer 1, 2 or 3 bit streams.
If a dash ``\-'' is specified, MPEG data will
be read from the standard input. Furthermore, any name
starting with ``http://'' is recognized as
.I URL
(see next section).
.SH OPTIONS
.B mpg123
options may be either the traditional POSIX one letter options,
or the GNU style long options. POSIX style options start with a
single ``\-'', while GNU long options start with ``\-\^\-''.
Option arguments (if needed) follow separated by whitespace (not ``='').
Note that some options can be absent from your installation when disabled in the build process.
.SH INPUT OPTIONS
.TP
\fB\-k \fInum\fR, \fB\-\^\-skip \fInum
Skip first
.I num
frames. By default the decoding starts at the first frame.
.TP
\fB\-n \fInum\fR, \fB\-\^\-frames \fInum
Decode only
.I num
frames. By default the complete stream is decoded.
.TP
.BR \-\-fuzzy
Enable fuzzy seeks (guessing byte offsets or using approximate seek points from Xing TOC).
Without that, seeks need a first scan through the file before they can jump at positions.
You can decide here: sample-accurate operation with gapless features or faster (fuzzy) seeking.
.TP
.BR \-y ", " \-\^\-no\-resync
Do NOT try to resync and continue decoding if an error occurs in
the input file. Normally,
.B mpg123
tries to keep the playback alive at all costs, including skipping invalid material and searching new header when something goes wrong.
With this switch you can make it bail out on data errors
(and perhaps spare your ears a bad time). Note that this switch has been renamed from \-\-resync.
The old name still works, but is not advertised or recommened to use (subject to removal in future).
.TP
\fB\-\^-resync\-limit \fIbytes\fR
Set number of bytes to search for valid MPEG data; <0 means search whole stream.
If you know there are huge chunks of invalid data in your files... here is your hammer.
.TP
\fB\-p \fIURL \fR| \fBnone\fR, \fB\-\^\-proxy \fIURL \fR| \fBnone
The specified
.I proxy
will be used for HTTP requests. It
should be specified as full URL (``http://host.domain:port/''),
but the ``http://'' prefix, the port number and the trailing
slash are optional (the default port is 80). Specifying
.B none
means not to use any proxy, and to retrieve files directly
from the respective servers. See also the
``HTTP SUPPORT'' section.
.TP
\fB\-u \fIauth\fR, \fB\-\^\-auth \fIauth
HTTP authentication to use when recieving files via HTTP.
The format used is user:password.
.TP
\fB\-@ \fIfile\fR, \fB\-\^\-list \fIfile
Read filenames and/or URLs of MPEG audio streams from the specified
.I file
in addition to the ones specified on the command line (if any).
Note that
.I file
can be either an ordinary file, a dash ``\-'' to indicate that
a list of filenames/URLs is to be read from the standard input,
or an URL pointing to a an appropriate list file. Note: only
one
.B \-@
option can be used (if more than one is specified, only the
last one will be recognized).
.TP
\fB\-l \fIn\fR, \fB\-\^\-listentry \fIn
Of the playlist, play specified entry only.
.I n
is the number of entry starting at 1. A value of 0 is the default and means playling the whole list, a negative value means showing of the list of titles with their numbers...
.TP
\fB\-\-loop \fItimes\fR
for looping track(s) a certain number of times, < 0 means infinite loop (not with --random!).
.TP
.BR \-\-keep\-open
For remote control mode: Keep loaded file open after reaching end.
.TP
\fB\-\-timeout \fIseconds\fR
Timeout in (integer) seconds before declaring a stream dead (if <= 0, wait forever).
.TP
.BR \-z ", " \-\^\-shuffle
Shuffle play. Randomly shuffles the order of files specified on the command
line, or in the list file.
.TP
.BR \-Z ", " \-\-random
Continuous random play. Keeps picking a random file from the command line
or the play list. Unlike shuffle play above, random play never ends, and
plays individual songs more than once.
.TP
\fB\-\^\-no\-icy\-meta
Do not accept ICY meta data.
.TP
\fB\-i, \-\^-\index
Index / scan through the track before playback.
This fills the index table for seeking (if enabled in libmpg123) and may make the operating system cache the file contents for smoother operating on playback.
.TP
\fB\-\-index\-size \fIsize\fR
Set the number of entries in the seek frame index table.
.TP
\fB\-\-preframes \fInum\fR
Set the number of frames to be read as lead-in before a seeked-to position.
This serves to fill the layer 3 bit reservoir, which is needed to faithfully reproduce a certain sample at a certain position.
Note that for layer 3, a minimum of 1 is enforced (because of frame overlap), and for layer 1 and 2, this is limited to 2 (no bit reservoir in that case, but engine spin-up anyway).
.SH OUTPUT and PROCESSING OPTIONS
.TP
\fB\-o \fImodule\fR, \-\^\-output \fImodule\fR
Select audio output module. You can provide a comma-separated list to use the first one that works.
.TP
\fB\-\^\-list\-modules
List the available modules.
.TP
\fB\-a \fIdev\fR, \fB\-\^\-audiodevice \fIdev
Specify the audio device to use. The default is
system-dependent (usually /dev/audio or /dev/dsp).
Use this option if you have multiple audio devices and
the default is not what you want.
.TP
.BR \-s ", " \-\^\-stdout
The decoded audio samples are written to standard output,
instead of playing them through the audio device. This
option must be used if your audio hardware is not supported
by
.BR mpg123 .
The output format per default is raw (headerless) linear PCM audio data,
16 bit, stereo, host byte order (you can force mono or 8bit).
.TP
\fB\-O \fIfile\fR, \fB\-\^\-outfile
Write raw output into a file (instead of simply redirecting standard output to a file with the shell).
.TP
\fB\-w \fIfile\fR, \fB\-\^\-wav
Write output as WAV file. This will cause the MPEG stream to be decoded
and saved as file
.I file
, or standard output if
.I -
is used as file name. You can also use
.I --au
and
.I --cdr
for AU and CDR format, respectively.
.TP
\fB\-\^\-au \fIfile
Does not play the MPEG file but writes it to
.I file
in SUN audio format. If \- is used as the filename, the AU file is
written to stdout.
.TP
\fB\-\^\-cdr \fIfile
Does not play the MPEG file but writes it to
.I file
as a CDR file. If \- is used as the filename, the CDR file is written
to stdout.
.TP
.BR \-\-reopen
Forces reopen of the audiodevice after ever song
.TP
.BR \-\-cpu\ \fIdecoder\-type
Selects a certain decoder (optimized for specific CPU), for example i586 or MMX.
The list of available decoders can vary; depending on the build and what your CPU supports.
This options is only availabe when the build actually includes several optimized decoders.
.TP
.BR \-\-test\-cpu
Tests your CPU and prints a list of possible choices for \-\-cpu.
.TP
.BR \-\-list\-cpu
Lists all available decoder choices, regardless of support by your CPU.
.TP
\fB\-g \fIgain\fR, \fB\-\^\-gain \fIgain
[DEPRECATED] Set audio hardware output gain (default: don't change). The unit of the gain value is hardware and output module dependent.
(This parameter is only provided for backwards compatibility and may be removed in the future without prior notice. Use the audio player for playing and a mixer app for mixing, UNIX style!)
.TP
\fB\-f \fIfactor\fR, \fB\-\^\-scale \fIfactor
Change scale factor (default: 32768).
.TP
.BR \-\-rva-mix,\ \-\-rva-radio
Enable RVA (relative volume adjustment) using the values stored for ReplayGain radio mode / mix mode with all tracks roughly equal loudness.
The first valid information found in ID3V2 Tags (Comment named RVA or the RVA2 frame) or ReplayGain header in Lame/Info Tag is used.
.TP
.BR \-\-rva-album,\ \-\-rva-audiophile
Enable RVA (relative volume adjustment) using the values stored for ReplayGain audiophile mode / album mode with usually the effect of adjusting album loudness but keeping relative loudness inside album.
The first valid information found in ID3V2 Tags (Comment named RVA_ALBUM or the RVA2 frame) or ReplayGain header in Lame/Info Tag is used.
.TP
.BR \-0 ", " \-\^\-single0 "; " \-1 ", " \-\^\-single1
Decode only channel 0 (left) or channel 1 (right),
respectively. These options are available for
stereo MPEG streams only.
.TP
.BR \-m ", " \-\^\-mono ", " \-\^\-mix ", " \-\^\-singlemix
Mix both channels / decode mono. It takes less
CPU time than full stereo decoding.
.TP
.BR \-\-stereo
Force stereo output
.TP
\fB\-r \fIrate\fR, \fB\-\^\-rate \fIrate
Set sample rate (default: automatic). You may want to
change this if you need a constant bitrate independed of
the mpeg stream rate. mpg123 automagically converts the
rate. You should then combine this with \-\-stereo or \-\-mono.
.TP
.BR \-2 ", " \-\^\-2to1 "; " \-4 ", " \-\^\-4to1
Performs a downsampling of ratio 2:1 (22 kHz) or 4:1 (11 kHz)
on the output stream, respectively. Saves some CPU cycles, but
at least the 4:1 ratio sounds ugly.
.TP
.BR \-\-pitch\ \fIvalue
Set hardware pitch (speedup/down, 0 is neutral; 0.05 is 5%). This changes the output sampling rate, so it only works in the range your audio system/hardware supports.
.TP
.BR \-\-8bit
Forces 8bit output
.TP
\fB\-d \fIn\fR, \fB\-\^\-doublespeed \fIn
Only play every
.IR n 'th
frame. This will cause the MPEG stream
to be played
.I n
times faster, which can be used for special
effects. Can also be combined with the
.B \-\^\-halfspeed
option to play 3 out of 4 frames etc. Don't expect great
sound quality when using this option.
.TP
\fB\-h \fIn\fR, \fB\-\^\-halfspeed \fIn
Play each frame
.I n
times. This will cause the MPEG stream
to be played at
.IR 1 / n 'th
speed (n times slower), which can be
used for special effects. Can also be combined with the
.B \-\^\-doublespeed
option to double every third frame or things like that.
Don't expect great sound quality when using this option.
.TP
\fB\-E \fIfile\fR, \fB\-\^\-equalizer
Enables equalization, taken from
.IR file .
The file needs to contain 32 lines of data, additional comment lines may
be prefixed with
.IR # .
Each data line consists of two floating-point entries, separated by
whitespace. They specify the multipliers for left and right channel of
a certain frequency band, respectively. The first line corresponds to the
lowest, the 32nd to the highest frequency band.
Note that you can control the equalizer interactively with the generic control interface.
.TP
\fB\-\^\-gapless
Enable code that cuts (junk) samples at beginning and end of tracks, enabling gapless transitions between MPEG files when encoder padding and codec delays would prevent it.
This is enabled per default beginning with mpg123 version 1.0.0 .
.TP
\fB\-\^\-no\-gapless
Disable the gapless code. That gives you MP3 decodings that include encoder delay and padding plus mpg123's decoder delay.
.TP
\fB\-D \fIn\fR, \fB\-\-delay \fIn
Insert a delay of \fIn\fR seconds before each track.
.TP
.BR "\-o h" ", " \-\^\-headphones
Direct audio output to the headphone connector (some hardware only; AIX, HP, SUN).
.TP
.BR "\-o s" ", " \-\^\-speaker
Direct audio output to the speaker (some hardware only; AIX, HP, SUN).
.TP
.BR "\-o l" ", " \-\^\-lineout
Direct audio output to the line-out connector (some hardware only; AIX, HP, SUN).
.TP
\fB\-b \fIsize\fR, \fB\-\^\-buffer \fIsize
Use an audio output buffer of
.I size
Kbytes. This is useful to bypass short periods of heavy
system activity, which would normally cause the audio output
to be interrupted.
You should specify a buffer size of at least 1024
(i.e. 1 Mb, which equals about 6 seconds of audio data) or more;
less than about 300 does not make much sense. The default is 0,
which turns buffering off.
.TP
\fB\-\^\-preload \fIfraction
Wait for the buffer to be filled to
.I fraction
before starting playback (fraction between 0 and 1). You can tune this prebuffering to either get faster sound to your ears or safer uninterrupted web radio.
Default is 1 (wait for full buffer before playback).
.TP
\fB\-\^\-smooth
Keep buffer over track boundaries -- meaning, do not empty the buffer between tracks for possibly some added smoothness.
.SH MISC OPTIONS
.TP
.BR \-t ", " \-\^\-test
Test mode. The audio stream is decoded, but no output occurs.
.TP
.BR \-c ", " \-\^\-check
Check for filter range violations (clipping), and report them for each frame
if any occur.
.TP
.BR \-v ", " \-\^\-verbose
Increase the verbosity level. For example, displays the frame
numbers during decoding.
.TP
.BR \-q ", " \-\^\-quiet
Quiet. Suppress diagnostic messages.
.TP
.BR \-C ", " \-\^\-control
Enable terminal control keys. By default use 's' or the space bar to stop/restart (pause, unpause) playback, 'f' to jump forward to the next song, 'b' to jump back to the
beginning of the song, ',' to rewind, '.' to fast forward, and 'q' to quit.
Type 'h' for a full list of available controls.
.TP
\fB\-\^\-title
In an xterm, or rxvt (compatible, TERM environment variable is examined), change the window's title to the name of song currently
playing.
.TP
\fB\-\^\-long\-tag
Display ID3 tag info always in long format with one line per item (artist, title, ...)
.TP
.BR \-\-utf8
Regardless of environment, print metadata in UTF-8 (otherwise, when not using UTF-8 locale, you'll get ASCII stripdown).
.TP
.BR \-R ", " \-\^\-remote
Activate generic control interface.
.B mpg123
will then read and execute commands from stdin. Basic usage is ``load <filename> '' to play some file and the obvious ``pause'', ``command.
``jump <frame>'' will jump/seek to a given point (MPEG frame number).
Issue ``help'' to get a full list of commands and syntax.
.TP
.BR \-\^\-remote\-err
Print responses for generic control mode to standard error, not standard out.
This is automatically triggered when using
.B -s
\fN.
.TP
\fB\-\-fifo \fIpath
Create a fifo / named pipe on the given path and use that for reading commands instead of standard input.
.TP
\fB\-\^\-aggressive
Tries to get higher priority
.TP
.BR \-T ", " \-\-realtime
Tries to gain realtime priority. This option usually requires root
privileges to have any effect.
.TP
.BR \-? ", " \-\^\-help
Shows short usage instructions.
.TP
.BR \-\^\-longhelp
Shows long usage instructions.
.TP
.BR \-\^\-version
Print the version string.
.SH HTTP SUPPORT
In addition to reading MPEG audio streams from ordinary
files and from the standard input,
.B mpg123
supports retrieval of MPEG audio files or playlists via the HTTP protocol,
which is used in the World Wide Web (WWW). Such files are
specified using a so-called URL, which starts with ``http://''. When a file with
that prefix is encountered,
.B mpg123
attempts to open an HTTP connection to the server in order to
retrieve that file to decode and play it.
.P
It is often useful to retrieve files through a WWW cache or
so-called proxy. To accomplish this,
.B mpg123
examines the environment for variables named
.BR MP3_HTTP_PROXY ", " http_proxy " and " HTTP_PROXY ,
in this order. The value of the first one that is set will
be used as proxy specification. To override this, you can
use the
.B \-p
command line option (see the ``OPTIONS'' section). Specifying
.B "\-p none"
will enforce contacting the server directly without using
any proxy, even if one of the above environment variables
is set.
.P
Note that, in order to play MPEG audio files from a WWW
server, it is necessary that the connection to that server
is fast enough. For example, a 128 kbit/s MPEG file
requires the network connection to be at least 128 kbit/s
(16 kbyte/s) plus protocol overhead. If you suffer from
short network outages, you should try the
.B \-b
option (buffer) to bypass such outages. If your network
connection is generally not fast enough to retrieve MPEG
audio files in realtime, you can first download the files
to your local harddisk (e.g. using
.BR wget (1))
and then play them from there.
.P
If authentication is needed to access the file it can be
specified with the
.BR "\-u user:pass".
.SH INTERRUPT
When in terminal control mode, you can quit via pressing the q key,
while any time you can abort
.B mpg123
by pressing Ctrl-C. If not in terminal control mode, this will
skip to the next file (if any). If you want to abort playing immediately
in that case, press Ctrl-C twice in short succession (within about one second).
.P
Note that the result of quitting
.B mpg123
pressing Ctrl-C might not be audible
immediately, due to audio data buffering in the audio device.
This delay is system dependent, but it is usually not more
than one or two seconds.
.SH "SEE ALSO"
.BR wget (1),
.BR sox (1),
.SH NOTES
MPEG audio decoding requires a good deal of CPU performance,
especially layer-3. To decode it in realtime, you should
have at least an i486DX4, Pentium, Alpha, SuperSparc or equivalent
processor. You can also use the
.B -m
option to decode mono only, which reduces the CPU load
somewhat for layer-3 streams. See also the
.BR \-2 " and " \-4
options.
.P
If everything else fails, use the
.B \-s
option to decode to standard output, direct it into a file
and then use an appropriate utility to play that file.
You might have to use a tool such as
.BR sox (1)
to convert the output to an audio format suitable for
your audio player.
.P
If your system is generally fast enough to decode in
realtime, but there are sometimes periods of heavy
system load (such as cronjobs, users logging in remotely,
starting of ``big'' programs etc.) causing the
audio output to be interrupted, then you should use
the
.B \-b
option to use a buffer of reasonable size (at least 1000 Kbytes).
.SH BUGS
.P
Mostly MPEG-1 layer 2 and 3 are tested in real life.
Please report any issues and provide test files to help fixing them.
.P
Free format streams are not supported, but they could be (there is some code).
.P
No CRC error checking is performed.
.P
Some platforms lack audio hardware support; you may be able to use the
.B -s
switch to feed the decoded data to a program that can play it on your audio device.
Notably, this includes Tru64 with MME, but you should be able to install and use OSS there (it perhaps will perform better as MME would anyway).
.SH AUTHORS
.TP
Maintainers:
.br
Thomas Orgis <maintainer@mpg123.org>, <thomas@orgis.org>
.br
Nicholas J. Humfrey
.TP
Creator:
.br
Michael Hipp
.TP
Uses code or ideas from various people, see the AUTHORS file accompanying the source code.
.SH LICENSE
.B mpg123
is licensed under the GNU Lesser/Library General Public License, LGPL, version 2.1 .
.SH WEBSITE
http://www.mpg123.org
.br
http://sourceforge.net/projects/mpg123

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# This is a generic spec file that should "just work" with rpmbuild on any distro.
# Make sure you have appropriate -devel packes installed:
# - the package providing libltdl.so and .la (libtool or libtool-devel)
# - devel packages for alsa, sdl, etc... to build the respective output modules.
Summary: The fast console mpeg audio decoder/player.
Name: mpg123
Version: 1.13.1
Release: 1
URL: http://www.mpg123.org/
License: GPL
Group: Applications/Multimedia
Packager: Michael Ryzhykh <mclroy@gmail.com>
Source: http://www.mpg123.org/download/mpg123-%{version}.tar.bz2
BuildRoot: %_tmppath/%name-%version
Prefix: /usr
# That is specific to fedora 4 already.
#BuildPrereq: libtool-ltdl-devel
%description
This is a console based decoder/player for mono/stereo mpeg audio files,
probably more familiar as MP3 or MP2 files. It's focus is speed.
It can play MPEG1.0/2.0/2.5 layer I, II, II (1, 2, 3;-) files
(VBR files are fine, too) and produce output on a number of different ways:
raw data to stdout and different sound systems depending on your platform.
%package devel
Summary: Files needed for development with mpg123
Group: Development/Libraries
%description devel
Libraries and header files for development with mpg123.
%prep
%setup -q -n %name-%version
%build
%configure --with-cpu=x86_dither --enable-shared --enable-static --disable-ltdl-install
make
%install
%{__rm} -rf %{buildroot}
%makeinstall
%clean
%{__rm} -rf %{buildroot}
%files
%defattr(755,root,root)
%{_bindir}/*
%defattr(644,root,root)
%doc %{_mandir}/*/mpg123.1.gz
%{_libdir}/libmpg123.so.*
%{_libdir}/mpg123/output_*.la
%{_libdir}/mpg123/output_*.so
%files devel
%defattr(644,root,root)
%{_libdir}/pkgconfig/libmpg123.pc
%{_includedir}/*.h
%{_libdir}/libmpg123.a
%{_libdir}/libmpg123.la
%{_libdir}/libmpg123.so
%exclude %{_libdir}/mpg123/output_*.a
%changelog
* Tue Jan 1 2008 Michael Ryzhykh <mclroy@gmail.com>
- Initial Version.

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# This is a generic spec file that should "just work" with rpmbuild on any distro.
# Make sure you have appropriate -devel packes installed:
# - the package providing libltdl.so and .la (libtool or libtool-devel)
# - devel packages for alsa, sdl, etc... to build the respective output modules.
Summary: The fast console mpeg audio decoder/player.
Name: @PACKAGE_NAME@
Version: @PACKAGE_VERSION@
Release: 1
URL: http://www.mpg123.org/
License: GPL
Group: Applications/Multimedia
Packager: Michael Ryzhykh <mclroy@gmail.com>
Source: http://www.mpg123.org/download/mpg123-%{version}.tar.bz2
BuildRoot: %_tmppath/%name-%version
Prefix: /usr
# That is specific to fedora 4 already.
#BuildPrereq: libtool-ltdl-devel
%description
This is a console based decoder/player for mono/stereo mpeg audio files,
probably more familiar as MP3 or MP2 files. It's focus is speed.
It can play MPEG1.0/2.0/2.5 layer I, II, II (1, 2, 3;-) files
(VBR files are fine, too) and produce output on a number of different ways:
raw data to stdout and different sound systems depending on your platform.
%package devel
Summary: Files needed for development with mpg123
Group: Development/Libraries
%description devel
Libraries and header files for development with mpg123.
%prep
%setup -q -n %name-%version
%build
%configure --with-cpu=x86_dither --enable-shared --enable-static --disable-ltdl-install
make
%install
%{__rm} -rf %{buildroot}
%makeinstall
%clean
%{__rm} -rf %{buildroot}
%files
%defattr(755,root,root)
%{_bindir}/*
%defattr(644,root,root)
%doc %{_mandir}/*/mpg123.1.gz
%{_libdir}/libmpg123.so.*
%{_libdir}/mpg123/output_*.la
%{_libdir}/mpg123/output_*.so
%files devel
%defattr(644,root,root)
%{_libdir}/pkgconfig/libmpg123.pc
%{_includedir}/*.h
%{_libdir}/libmpg123.a
%{_libdir}/libmpg123.la
%{_libdir}/libmpg123.so
%exclude %{_libdir}/mpg123/output_*.a
%changelog
* Tue Jan 1 2008 Michael Ryzhykh <mclroy@gmail.com>
- Initial Version.

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<?xml version="1.0" encoding="Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="8,00"
Name="libmpg123"
ProjectGUID="{5ABE9A83-CA20-4321-878B-BF71EFDE3A6D}"
RootNamespace="libmpg123"
Keyword="Win32Proj"
>
<Platforms>
<Platform
Name="Win32"
/>
</Platforms>
<ToolFiles>
</ToolFiles>
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Name="VCPostBuildEventTool"
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<Configuration
Name="Release|Win32"
OutputDirectory="$(SolutionDir)$(ConfigurationName)"
IntermediateDirectory="$(ConfigurationName)"
ConfigurationType="1"
CharacterSet="1"
WholeProgramOptimization="1"
>
<Tool
Name="VCPreBuildEventTool"
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<Tool
Name="VCCustomBuildTool"
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<Tool
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<Tool
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<Tool
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<Tool
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<Tool
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GenerateDebugInformation="true"
SubSystem="1"
OptimizeReferences="2"
EnableCOMDATFolding="2"
TargetMachine="1"
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<Tool
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<Tool
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<Tool
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<Tool
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<Tool
Name="VCFxCopTool"
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<Tool
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<Tool
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<References>
<ProjectReference
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RelativePathToProject=".\libmpg123\libmpg123.vcproj"
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65
src/contrib/mpg123decoder/mpg123/ports/MSVC++/2008/scan/scan.vcproj.SOAK.julian.cromarty.user Normal file
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MPIAcceptFilter=""
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src/contrib/mpg123decoder/mpg123/ports/MSVC++/2008clr/2008clr.sln Normal file
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Microsoft Visual Studio Solution File, Format Version 10.00
# Visual Studio 2008
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EndProject
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ProjectSection(ProjectDependencies) = postProject
{99E8B20E-9C29-46BC-B766-A50F237D88BF} = {99E8B20E-9C29-46BC-B766-A50F237D88BF}
EndProjectSection
EndProject
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EndProject
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EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libmpg123", "..\2008\libmpg123\libmpg123.vcproj", "{67CAA87B-7CF1-4F93-BB67-21C513F40803}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
Debug|Mixed Platforms = Debug|Mixed Platforms
Debug|Win32 = Debug|Win32
Release|Any CPU = Release|Any CPU
Release|Mixed Platforms = Release|Mixed Platforms
Release|Win32 = Release|Win32
EndGlobalSection
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{99E8B20E-9C29-46BC-B766-A50F237D88BF}.Debug|Mixed Platforms.Build.0 = Debug|Win32
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{99E8B20E-9C29-46BC-B766-A50F237D88BF}.Release|Win32.Build.0 = Release|Win32
{53664927-0A21-4056-A5D5-C6A1B4B1F839}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{53664927-0A21-4056-A5D5-C6A1B4B1F839}.Release|Any CPU.ActiveCfg = Release|Any CPU
{53664927-0A21-4056-A5D5-C6A1B4B1F839}.Release|Any CPU.Build.0 = Release|Any CPU
{53664927-0A21-4056-A5D5-C6A1B4B1F839}.Release|Mixed Platforms.ActiveCfg = Release|Any CPU
{53664927-0A21-4056-A5D5-C6A1B4B1F839}.Release|Mixed Platforms.Build.0 = Release|Any CPU
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{6415FBC0-44EC-4158-8A24-127D9BAC5CEA}.Debug|Mixed Platforms.Build.0 = Debug|Any CPU
{6415FBC0-44EC-4158-8A24-127D9BAC5CEA}.Debug|Win32.ActiveCfg = Debug|Any CPU
{6415FBC0-44EC-4158-8A24-127D9BAC5CEA}.Release|Any CPU.ActiveCfg = Release|Any CPU
{6415FBC0-44EC-4158-8A24-127D9BAC5CEA}.Release|Any CPU.Build.0 = Release|Any CPU
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{6415FBC0-44EC-4158-8A24-127D9BAC5CEA}.Release|Win32.ActiveCfg = Release|Any CPU
{67CAA87B-7CF1-4F93-BB67-21C513F40803}.Debug|Any CPU.ActiveCfg = Debug_x86_Dll_Minimal|Win32
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{67CAA87B-7CF1-4F93-BB67-21C513F40803}.Debug|Mixed Platforms.Build.0 = Debug_Generic_Dll|Win32
{67CAA87B-7CF1-4F93-BB67-21C513F40803}.Debug|Win32.ActiveCfg = Debug_x86_Dll_Minimal|Win32
{67CAA87B-7CF1-4F93-BB67-21C513F40803}.Debug|Win32.Build.0 = Debug_x86_Dll_Minimal|Win32
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HideSolutionNode = FALSE
EndGlobalSection
EndGlobal

435
src/contrib/mpg123decoder/mpg123/ports/MSVC++/2008clr/examples/ReplaceReaderclr/Program.cs Normal file
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@ -0,0 +1,435 @@
/*
replacereaderclr: test program for mpg123clr, showing how to use ReplaceReader in a CLR enviro.
copyright 2009 by the mpg123 project - free software under the terms of the LGPL 2.1
see COPYING and AUTHORS files in distribution or http://mpg123.org
initially written by Malcolm Boczek
not to be used as an example of good coding practices, note the total absence of error handling!!!
*/
/*
1.9.0.0 24-Sep-09 Function names harmonized with libmpg123 (mb)
1.12.0.0 14-Apr-10 Added ReplaceReaderHandle sample code (mb)
*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO; // for ReplaceReaderHandle example
using System.Runtime.InteropServices; // for ReplaceReaderHandle example
using mpg123clr;
namespace ReplaceReaderclr
{
class Program
{
private unsafe static int MyReadFunc(int a, void* b, uint c)
{
// need to call posix read function here...
// PosixRead is an example, substitute your replacement function here.
int ret = mpg123.PosixRead(a, b, c);
return ret;
}
private static int MySeekFunc(int a, int b, int c)
{
// NOTE: Largefile conflict with use of "int" position values.
// Convert to long if off_t is defined as long long
// need to call posix lseek function here...
// PosixSeek is an example, substitute your replacement function here.
int ret = mpg123.PosixSeek(a, b, c);
return ret;
}
private unsafe static int MyHandleReadFunc(void* a, void* b, uint c)
{
GCHandle gch = GCHandle.FromIntPtr((IntPtr)a);
BinaryReader br = (BinaryReader)gch.Target;
byte[] buf = br.ReadBytes((int)c);
// NOTE: no discernible performance difference between Marshal.Copy and ptr++ loop
Marshal.Copy(buf, 0, (IntPtr)b, buf.Length);
// byte* ptr = (byte*)b;
// for (int i = 0, l = buf.Length; i < l; i++)
// *(ptr++) = buf[i];
return buf.Length;
}
private unsafe static int MyHandleSeekFunc(void* a, int b, int c)
{
// NOTE: Largefile conflict with use of "int" position values.
// Convert to long if off_t is defined as long long
GCHandle gch = GCHandle.FromIntPtr((IntPtr)a);
BinaryReader br = (BinaryReader)gch.Target;
return (int)br.BaseStream.Seek(b, (SeekOrigin)c);
}
private unsafe static void MyHandleCleanFunc(void* a)
{
GCHandle gch = GCHandle.FromIntPtr((IntPtr)a);
BinaryReader br = (BinaryReader)gch.Target;
br.Close();
}
static unsafe void Main(string[] args)
{
if (args.Length == 0)
{
Console.WriteLine("I need a file to work on:\n\nPress any key to exit.");
while (Console.Read() == 0) ;
return;
}
mpg123clr.mpg.ErrorCode err;
string filename = args[0];
err = mpg123.mpg123_init();
Console.WriteLine("Init:");
RunReplaceReaderTest(filename);
RunReplaceReaderHandleTest(filename);
RunFrameByFrameTest(filename);
Console.WriteLine("\nPress any key to exit:");
while (Console.Read() == 0) ;
mpg123.mpg123_exit();
}
static unsafe void RunReplaceReaderTest(string filename)
{
mpg123clr.mpg.ErrorCode err;
mpg123 mp = new mpg123();
err = mp.mpg123_new();
// ReplaceReader example
mpg123clr.mpg123.ReadDelegate rdel = MyReadFunc;
mpg123clr.mpg123.SeekDelegate sdel = MySeekFunc;
err = mp.mpg123_replace_reader(rdel, sdel);
//err = mp.mpg123_open(args[0]);
err = mp.mpg123_open(filename);
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Error: " + mp.mpg123_strerror());
}
else
{
Console.WriteLine("Open:");
// Show available decoders
string[] Decoders = mp.mpg123_decoders();
if (Decoders.Length > 0)
{
Console.WriteLine("\nDecoders:");
foreach (string str in Decoders) Console.WriteLine(str);
}
// Show supported decoders
string[] supDecoders = mp.mpg123_supported_decoders();
if (supDecoders.Length > 0)
{
Console.WriteLine("\nSupported Decoders:");
foreach (string str in supDecoders) Console.WriteLine(str);
}
// Show actual decoder
Console.WriteLine("\nDecoder: " + mp.mpg123_current_decoder());
// Show estimated file length
Console.WriteLine("\nLength Estimate: " + mp.mpg123_length().ToString());
// Scan - gets actual details including ID3v2 and Frame offsets
err = mp.mpg123_scan();
// Show actual file length
if (err == mpg123clr.mpg.ErrorCode.ok) Console.WriteLine("Length Actual : " + mp.mpg123_length().ToString());
// Get ID3 data
mpg123clr.id3.mpg123id3v1 iv1;
mpg123clr.id3.mpg123id3v2 iv2;
err = mp.mpg123_id3(out iv1, out iv2);
// Show ID3v2 data
Console.WriteLine("\nTitle : " + iv2.title);
Console.WriteLine("Artist : " + iv2.artist);
Console.WriteLine("Album : " + iv2.album);
Console.WriteLine("Comment: " + iv2.comment);
Console.WriteLine("Year : " + iv2.year);
// Demo seek (back to start of file - note: scan should already have done this)
long pos = mp.mpg123_seek(0, System.IO.SeekOrigin.Begin);
long[] frameindex;
long step;
err = mp.mpg123_index(out frameindex, out step);
if (err == mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("\nFrameIndex:");
foreach (long idx in frameindex)
{
// Console.WriteLine(idx.ToString());
}
}
int num;
uint cnt;
IntPtr audio;
// Walk the file - effectively decode the data without using it...
Console.WriteLine("\nWalking : " + iv2.title);
DateTime dte, dts = DateTime.Now;
while (err == mpg123clr.mpg.ErrorCode.ok || err == mpg123clr.mpg.ErrorCode.new_format)
{
err = mp.mpg123_decode_frame(out num, out audio, out cnt);
// do something with "audio" here....
}
dte = DateTime.Now;
TimeSpan ts = dte - dts;
Console.WriteLine("Duration: " + ts.ToString());
mp.mpg123_close();
}
mp.Dispose();
}
static unsafe void RunReplaceReaderHandleTest(string filename)
{
mpg123clr.mpg.ErrorCode err;
mpg123 mp = new mpg123();
err = mp.mpg123_new();
// ReplaceReader example
mpg123clr.mpg123.ReadHandleDelegate rdel = MyHandleReadFunc;
mpg123clr.mpg123.SeekHandleDelegate sdel = MyHandleSeekFunc;
mpg123clr.mpg123.CleanupHandleDelegate cdel = MyHandleCleanFunc;
err = mp.mpg123_replace_reader_handle(rdel, sdel, cdel);
//err = mp.mpg123_open(args[0]);
BinaryReader br = new BinaryReader(File.OpenRead(filename));
err = mp.mpg123_open_handle(br);
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Error: " + mp.mpg123_strerror());
}
else
{
Console.WriteLine("Open:");
// Show available decoders
string[] Decoders = mp.mpg123_decoders();
if (Decoders.Length > 0)
{
Console.WriteLine("\nDecoders:");
foreach (string str in Decoders) Console.WriteLine(str);
}
// Show supported decoders
string[] supDecoders = mp.mpg123_supported_decoders();
if (supDecoders.Length > 0)
{
Console.WriteLine("\nSupported Decoders:");
foreach (string str in supDecoders) Console.WriteLine(str);
}
// Show actual decoder
Console.WriteLine("\nDecoder: " + mp.mpg123_current_decoder());
// Show estimated file length
Console.WriteLine("\nLength Estimate: " + mp.mpg123_length().ToString());
// Scan - gets actual details including ID3v2 and Frame offsets
err = mp.mpg123_scan();
// Show actual file length
if (err == mpg123clr.mpg.ErrorCode.ok) Console.WriteLine("Length Actual : " + mp.mpg123_length().ToString());
// Get ID3 data
mpg123clr.id3.mpg123id3v1 iv1;
mpg123clr.id3.mpg123id3v2 iv2;
err = mp.mpg123_id3(out iv1, out iv2);
// Show ID3v2 data
Console.WriteLine("\nTitle : " + iv2.title);
Console.WriteLine("Artist : " + iv2.artist);
Console.WriteLine("Album : " + iv2.album);
Console.WriteLine("Comment: " + iv2.comment);
Console.WriteLine("Year : " + iv2.year);
// Demo seek (back to start of file - note: scan should already have done this)
long pos = mp.mpg123_seek(0, System.IO.SeekOrigin.Begin);
long[] frameindex;
long step;
err = mp.mpg123_index(out frameindex, out step);
if (err == mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("\nFrameIndex:");
foreach (long idx in frameindex)
{
// Console.WriteLine(idx.ToString());
}
}
int num;
uint cnt;
IntPtr audio;
// Walk the file - effectively decode the data without using it...
Console.WriteLine("\nWalking : " + iv2.title);
DateTime dte, dts = DateTime.Now;
while (err == mpg123clr.mpg.ErrorCode.ok || err == mpg123clr.mpg.ErrorCode.new_format)
{
err = mp.mpg123_decode_frame(out num, out audio, out cnt);
// do something with "audio" here....
}
dte = DateTime.Now;
TimeSpan ts = dte - dts;
Console.WriteLine("Duration: " + ts.ToString());
mp.mpg123_close();
}
mp.Dispose();
}
static unsafe void RunFrameByFrameTest(string filename)
{
mpg123clr.mpg.ErrorCode err;
mpg123 mp = new mpg123();
err = mp.mpg123_new();
err = mp.mpg123_open(filename);
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Error: " + mp.mpg123_strerror());
}
else
{
Console.WriteLine("Open:");
// Show available decoders
string[] Decoders = mp.mpg123_decoders();
if (Decoders.Length > 0)
{
Console.WriteLine("\nDecoders:");
foreach (string str in Decoders) Console.WriteLine(str);
}
// Show supported decoders
string[] supDecoders = mp.mpg123_supported_decoders();
if (supDecoders.Length > 0)
{
Console.WriteLine("\nSupported Decoders:");
foreach (string str in supDecoders) Console.WriteLine(str);
}
// Show actual decoder
Console.WriteLine("\nDecoder: " + mp.mpg123_current_decoder());
// Show estimated file length
Console.WriteLine("\nLength Estimate: " + mp.mpg123_length().ToString());
// Scan - gets actual details including ID3v2 and Frame offsets
err = mp.mpg123_scan();
// Show actual file length
if (err == mpg123clr.mpg.ErrorCode.ok) Console.WriteLine("Length Actual : " + mp.mpg123_length().ToString());
// Get ID3 data
mpg123clr.id3.mpg123id3v1 iv1;
mpg123clr.id3.mpg123id3v2 iv2;
err = mp.mpg123_id3(out iv1, out iv2);
// Show ID3v2 data
Console.WriteLine("\nTitle : " + iv2.title);
Console.WriteLine("Artist : " + iv2.artist);
Console.WriteLine("Album : " + iv2.album);
Console.WriteLine("Comment: " + iv2.comment);
Console.WriteLine("Year : " + iv2.year);
// Demo seek (back to start of file - note: scan should already have done this)
long pos = mp.mpg123_seek(0, System.IO.SeekOrigin.Begin);
long[] frameindex;
long step;
err = mp.mpg123_index(out frameindex, out step);
if (err == mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("\nFrameIndex:");
foreach (long idx in frameindex)
{
// Console.WriteLine(idx.ToString());
}
}
int num;
uint cnt;
IntPtr audio;
// Walk the file - effectively decode the data without using it...
Console.WriteLine("\nFrame Walking : " + iv2.title);
DateTime dte, dts = DateTime.Now;
while (err == mpg123clr.mpg.ErrorCode.ok || err == mpg123clr.mpg.ErrorCode.new_format)
{
err = mp.mpg123_framebyframe_decode(out num, out audio, out cnt);
err = mp.mpg123_framebyframe_next();
// do something with "audio" here....
}
dte = DateTime.Now;
TimeSpan ts = dte - dts;
Console.WriteLine("Duration: " + ts.ToString());
mp.mpg123_close();
}
mp.Dispose();
}
}
}

36
src/contrib/mpg123decoder/mpg123/ports/MSVC++/2008clr/examples/ReplaceReaderclr/Properties/AssemblyInfo.cs Normal file
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using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
// General Information about an assembly is controlled through the following
// set of attributes. Change these attribute values to modify the information
// associated with an assembly.
[assembly: AssemblyTitle("ReplaceReaderclr")]
[assembly: AssemblyDescription("")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("")]
[assembly: AssemblyProduct("ReplaceReaderclr")]
[assembly: AssemblyCopyright("© mpg123 project 2009")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]
// Setting ComVisible to false makes the types in this assembly not visible
// to COM components. If you need to access a type in this assembly from
// COM, set the ComVisible attribute to true on that type.
[assembly: ComVisible(false)]
// The following GUID is for the ID of the typelib if this project is exposed to COM
[assembly: Guid("c65bdebb-51d7-41ba-875d-b2c938f187fc")]
// Version information for an assembly consists of the following four values:
//
// Major Version
// Minor Version
// Build Number
// Revision
//
// You can specify all the values or you can default the Build and Revision Numbers
// by using the '*' as shown below:
// [assembly: AssemblyVersion("1.0.*")]
[assembly: AssemblyVersion("1.0.0.0")]
[assembly: AssemblyFileVersion("1.0.0.0")]

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src/contrib/mpg123decoder/mpg123/ports/MSVC++/2008clr/examples/ReplaceReaderclr/ReplaceReaderclr.csproj Normal file
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<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="3.5" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
<ProductVersion>9.0.30729</ProductVersion>
<SchemaVersion>2.0</SchemaVersion>
<ProjectGuid>{6415FBC0-44EC-4158-8A24-127D9BAC5CEA}</ProjectGuid>
<OutputType>Exe</OutputType>
<AppDesignerFolder>Properties</AppDesignerFolder>
<RootNamespace>ReplaceReaderclr</RootNamespace>
<AssemblyName>ReplaceReaderclr</AssemblyName>
<TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
<FileAlignment>512</FileAlignment>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
<DebugSymbols>true</DebugSymbols>
<DebugType>full</DebugType>
<Optimize>false</Optimize>
<OutputPath>bin\Debug\</OutputPath>
<DefineConstants>DEBUG;TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
<PlatformTarget>x86</PlatformTarget>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
<DebugType>pdbonly</DebugType>
<Optimize>true</Optimize>
<OutputPath>bin\Release\</OutputPath>
<DefineConstants>TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
<PlatformTarget>x86</PlatformTarget>
</PropertyGroup>
<ItemGroup>
<Reference Include="System" />
<Reference Include="System.Core">
<RequiredTargetFramework>3.5</RequiredTargetFramework>
</Reference>
<Reference Include="System.Xml.Linq">
<RequiredTargetFramework>3.5</RequiredTargetFramework>
</Reference>
<Reference Include="System.Data.DataSetExtensions">
<RequiredTargetFramework>3.5</RequiredTargetFramework>
</Reference>
<Reference Include="System.Data" />
<Reference Include="System.Xml" />
</ItemGroup>
<ItemGroup>
<Compile Include="Program.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\..\mpg123clr\mpg123clr.vcproj">
<Project>{99E8B20E-9C29-46BC-B766-A50F237D88BF}</Project>
<Name>mpg123clr</Name>
</ProjectReference>
</ItemGroup>
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
Other similar extension points exist, see Microsoft.Common.targets.
<Target Name="BeforeBuild">
</Target>
<Target Name="AfterBuild">
</Target>
-->
<PropertyGroup>
<PostBuildEvent>if exist "$(SolutionDir)$(ConfigurationName)\libmpg123.dll" copy /y "$(SolutionDir)$(ConfigurationName)\libmpg123.dll" "$(TargetDir)"</PostBuildEvent>
</PropertyGroup>
</Project>

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src/contrib/mpg123decoder/mpg123/ports/MSVC++/2008clr/examples/feedseekclr/Program.cs Normal file
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/*
feedseekclr: test program for mpg123clr, showing how to use fuzzy seeking in feeder mode
copyright 2009 by the mpg123 project - free software under the terms of the LGPL 2.1
see COPYING and AUTHORS files in distribution or http://mpg123.org
based on feedseek.c example for libmpg123.
Comment (Malcolm Boczek)
this CLR example has been written to allow easy comparison to the original feedseek.c example
and uses some constructs that would not normally be used in a C# environment,
eg: byte[]/ASCII text, Marshal.Copy, static fields, lots of casts etc.
*/
/*
1.9.0.0 24-Sep-09 Function names harmonized with libmpg123 (mb)
*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Runtime.InteropServices;
using mpg123clr;
namespace feedseekclr
{
class Program
{
const int WAVE_FORMAT_PCM = 0x0001;
const int WAVE_FORMAT_IEEE_FLOAT = 0x0003;
static BinaryWriter _out;
static long totaloffset, dataoffset;
static int rate;
static mpg123clr.mpg.channelcount channels;
static mpg123clr.mpg.enc enc;
static short bitspersample, wavformat;
// write wav header
static void initwav()
{
uint tmp32 = 0;
ushort tmp16 = 0;
byte[] rifftxt = new byte[] { (byte)'R', (byte)'I', (byte)'F', (byte)'F' };
byte[] wavetxt = new byte[] { (byte)'W', (byte)'A', (byte)'V', (byte)'E' };
byte[] fmttxt = new byte[] { (byte)'f', (byte)'m', (byte)'t', (byte)' ' };
byte[] datatxt = new byte[] { (byte)'d', (byte)'a', (byte)'t', (byte)'a' };
_out.Write(rifftxt);
totaloffset = _out.BaseStream.Position;
_out.Write(tmp32); // total size
_out.Write(wavetxt);
_out.Write(fmttxt);
tmp32 = 16;
_out.Write(tmp32); // format length
tmp16 = (ushort)wavformat;
_out.Write(tmp16); // format
tmp16 = (ushort)channels;
_out.Write(tmp16); // channels
tmp32 = (uint)rate;
_out.Write(tmp32); // sample rate
tmp32 = (uint) (rate * bitspersample / 8 * (int)channels);
_out.Write(tmp32); // bytes / second
tmp16 = (ushort)(bitspersample / 8 * (int)channels); // float 16 or signed int 16
_out.Write(tmp16); // block align
tmp16 = (ushort)bitspersample;
_out.Write(tmp16); // bits per sample
_out.Write(datatxt);
tmp32 = 0;
dataoffset = _out.BaseStream.Position;
_out.Write(tmp32); // data length
}
// rewrite wav header with final length infos
static void closewav()
{
uint tmp32 = 0;
// ushort tmp16 = 0;
int total = (int)_out.BaseStream.Position;
_out.Seek((int)totaloffset, SeekOrigin.Begin);
tmp32 = (uint)(total - (totaloffset + 4));
_out.Write(tmp32);
_out.Seek((int)dataoffset, SeekOrigin.Begin);
tmp32 = (uint)(total - (dataoffset + 4));
_out.Write(tmp32);
}
// determine correct wav format and bits per sample
// from mpg123 enc value
static void initwavformat()
{
if ((enc & mpg123clr.mpg.enc.enc_float_64) != 0)
{
bitspersample = 64;
wavformat = WAVE_FORMAT_IEEE_FLOAT;
}
else if ((enc & mpg123clr.mpg.enc.enc_float_32) != 0)
{
bitspersample = 32;
wavformat = WAVE_FORMAT_IEEE_FLOAT;
}
else if ((enc & mpg123clr.mpg.enc.enc_16) != 0)
{
bitspersample = 16;
wavformat = WAVE_FORMAT_PCM;
}
else
{
bitspersample = 8;
wavformat = WAVE_FORMAT_PCM;
}
}
static void Main(string[] args)
{
const long INBUFF = 16384 * 2 * 2;
int ret;
mpg123clr.mpg.ErrorCode state;
long inoffset,inc = 0;
long outc = 0;
byte[] buf = new byte[INBUFF];
if (args.Length < 2)
{
Console.WriteLine("Please supply in and out filenames\n");
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0) ;
return;
}
mpg123clr.mpg.ErrorCode err;
err = mpg123.mpg123_init();
mpg123 mp = new mpg123();
err = mp.mpg123_new();
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to create mpg123 handle: " + mpg123error.mpg123_plain_strerror(err));
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0) ;
return;
}
mp.mpg123_param(mpg123clr.mpg.parms.verbose, 4, 0);
err = mp.mpg123_param(mpg123clr.mpg.parms.flags,
(int) (mpg123clr.mpg.param_flags.fuzzy |
mpg123clr.mpg.param_flags.seekbuffer |
mpg123clr.mpg.param_flags.gapless), 0);
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to set library options: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0) ;
return;
}
// Let the seek index auto-grow and contain an entry for every frame
err = mp.mpg123_param(mpg123clr.mpg.parms.index_size, -1, 0);
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to set index size: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0) ;
return;
}
// Use float output formats only
err = mp.mpg123_format_none();
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to disable all output formats: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0) ;
return;
}
int[] rates = mp.mpg123_rates();
foreach (int rate in rates)
{
err = mp.mpg123_format(rate, mpg123clr.mpg.channelcount.both, mpg123clr.mpg.enc.enc_float_32);
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to set float output formats: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0) ;
return;
}
}
err = mp.mpg123_open_feed();
if (err != mpg123clr.mpg.ErrorCode.ok)
{
Console.WriteLine("Unable to open feed: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0) ;
return;
}
string filename = args[0];
BinaryReader _in = new BinaryReader(File.Open(filename, FileMode.Open));
_out = new BinaryWriter(File.Open(args[1], FileMode.Create));
while ((ret = (int)(mp.mpg123_feedseek(95000, SeekOrigin.Begin, out inoffset))) == (int)mpg123clr.mpg.ErrorCode.need_more) // equiv to mpg123_feedseek
{
buf = _in.ReadBytes((int)INBUFF);
if (buf.Length <= 0) break;
inc += buf.Length;
state = mp.mpg123_feed(buf, (uint)buf.Length);
if (state == mpg123clr.mpg.ErrorCode.err)
{
Console.WriteLine("Feed error: " + mp.mpg123_strerror());
Console.WriteLine("Press any key to exit:");
while (Console.Read() == 0) ;
return;
}
}
_in.BaseStream.Seek(inoffset, SeekOrigin.Begin);
while (true)
{
buf = _in.ReadBytes((int)INBUFF);
if (buf.Length <= 0) break;
inc += buf.Length;
err = mp.mpg123_feed(buf, (uint)buf.Length);
int num;
uint bytes;
IntPtr audio;
while (err != mpg123clr.mpg.ErrorCode.err && err != mpg123clr.mpg.ErrorCode.need_more)
{
err = mp.mpg123_decode_frame(out num, out audio, out bytes);
if (err == mpg123clr.mpg.ErrorCode.new_format)
{
mp.mpg123_getformat(out rate, out channels, out enc);
initwavformat();
initwav();
}
// (Surprisingly?) even though it does a Marshal.Copy it's as efficient as the pointer example below!!!
if (bytes > 0)
{
byte[] outbuf = new byte[bytes];
Marshal.Copy(audio, outbuf, 0, (int)bytes);
_out.Write(outbuf, 0, (int)bytes);
}
// Alternative example of direct usage of audio data via pointers - note it needs "unsafe"
// and I'm fairly sure pointers should be "fixed" first
// if (bytes > 0)
// unsafe{
// byte* p = (byte*)audio;
// for (int ii = 0; ii < bytes; ii++)
// _out.Write(*p++);
// }
outc += bytes;
}
if (err == mpg123clr.mpg.ErrorCode.err)
{
Console.WriteLine("Error: " + mp.mpg123_strerror());
break;
}
}
Console.WriteLine("Finished");
closewav();
_out.Close();
_in.Close();
mp.mpg123_delete();
mp.Dispose();
mpg123.mpg123_exit();
}
}
}

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