From 2ab3d99967d68c79351fe2a3df22c445447e3010 Mon Sep 17 00:00:00 2001
From: Michał Cichoń <michcic@gmail.com>
Date: Tue, 15 Nov 2011 22:28:48 +0100
Subject: Initial import.
---
libao/libao.vcproj | 205 +++++
libao/src/AUTHORS | 4 +
libao/src/CHANGES | 103 +++
libao/src/COPYING | 340 +++++++++
libao/src/README | 70 ++
libao/src/include/ao/ao.h | 139 ++++
libao/src/include/ao/ao_private.h | 211 ++++++
libao/src/include/ao/os_types.h | 39 +
libao/src/include/ao/plugin.h | 51 ++
libao/src/src/ao_aixs.c | 256 +++++++
libao/src/src/ao_au.c | 250 ++++++
libao/src/src/ao_null.c | 153 ++++
libao/src/src/ao_raw.c | 160 ++++
libao/src/src/ao_wav.c | 291 +++++++
libao/src/src/ao_wmm.c | 645 ++++++++++++++++
libao/src/src/audio_out.c | 1514 +++++++++++++++++++++++++++++++++++++
libao/src/src/config.c | 111 +++
17 files changed, 4542 insertions(+)
create mode 100644 libao/libao.vcproj
create mode 100644 libao/src/AUTHORS
create mode 100644 libao/src/CHANGES
create mode 100644 libao/src/COPYING
create mode 100644 libao/src/README
create mode 100644 libao/src/include/ao/ao.h
create mode 100644 libao/src/include/ao/ao_private.h
create mode 100644 libao/src/include/ao/os_types.h
create mode 100644 libao/src/include/ao/plugin.h
create mode 100644 libao/src/src/ao_aixs.c
create mode 100644 libao/src/src/ao_au.c
create mode 100644 libao/src/src/ao_null.c
create mode 100644 libao/src/src/ao_raw.c
create mode 100644 libao/src/src/ao_wav.c
create mode 100644 libao/src/src/ao_wmm.c
create mode 100644 libao/src/src/audio_out.c
create mode 100644 libao/src/src/config.c
(limited to 'libao')
diff --git a/libao/libao.vcproj b/libao/libao.vcproj
new file mode 100644
index 0000000..d1fc210
--- /dev/null
+++ b/libao/libao.vcproj
@@ -0,0 +1,205 @@
+<?xml version="1.0" encoding="windows-1250"?>
+<VisualStudioProject
+ ProjectType="Visual C++"
+ Version="9,00"
+ Name="libao"
+ ProjectGUID="{75E224E3-6A99-4C8F-9598-9A6F115B91F2}"
+ RootNamespace="libao"
+ Keyword="Win32Proj"
+ TargetFrameworkVersion="131072"
+ >
+ <Platforms>
+ <Platform
+ Name="Win32"
+ />
+ </Platforms>
+ <ToolFiles>
+ </ToolFiles>
+ <Configurations>
+ <Configuration
+ Name="Debug|Win32"
+ OutputDirectory="$(SolutionDir)build\temp\lib\"
+ IntermediateDirectory="$(SolutionDir)build\temp\obj\$(ProjectName)\$(ConfigurationName)"
+ ConfigurationType="4"
+ CharacterSet="0"
+ >
+ <Tool
+ Name="VCPreBuildEventTool"
+ />
+ <Tool
+ Name="VCCustomBuildTool"
+ />
+ <Tool
+ Name="VCXMLDataGeneratorTool"
+ />
+ <Tool
+ Name="VCWebServiceProxyGeneratorTool"
+ />
+ <Tool
+ Name="VCMIDLTool"
+ />
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="0"
+ AdditionalIncludeDirectories="$(ProjectDir)src\include\"
+ PreprocessorDefinitions="WIN32;_DEBUG;_LIB;AO_BUILDING_LIBAO;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
+ MinimalRebuild="false"
+ ExceptionHandling="0"
+ BasicRuntimeChecks="3"
+ RuntimeLibrary="1"
+ UsePrecompiledHeader="0"
+ ProgramDataBaseFileName="$(IntDir)\vc90.pdb"
+ WarningLevel="3"
+ DebugInformationFormat="1"
+ />
+ <Tool
+ Name="VCManagedResourceCompilerTool"
+ />
+ <Tool
+ Name="VCResourceCompilerTool"
+ />
+ <Tool
+ Name="VCPreLinkEventTool"
+ />
+ <Tool
+ Name="VCLibrarianTool"
+ OutputFile="$(OutDir)\$(ProjectName)-mt-debug.lib"
+ />
+ <Tool
+ Name="VCALinkTool"
+ />
+ <Tool
+ Name="VCXDCMakeTool"
+ />
+ <Tool
+ Name="VCBscMakeTool"
+ />
+ <Tool
+ Name="VCFxCopTool"
+ />
+ <Tool
+ Name="VCPostBuildEventTool"
+ CommandLine="xcopy "$(ProjectDir)src\include\ao\ao.h" "$(SolutionDir)build\temp\include\ao\" /I /Y /D
xcopy "$(ProjectDir)src\include\ao\os_types.h" "$(SolutionDir)build\temp\include\ao\" /I /Y /D
"
+ />
+ </Configuration>
+ <Configuration
+ Name="Release|Win32"
+ OutputDirectory="$(SolutionDir)build\temp\lib\"
+ IntermediateDirectory="$(SolutionDir)build\temp\obj\$(ProjectName)\$(ConfigurationName)"
+ ConfigurationType="4"
+ CharacterSet="0"
+ WholeProgramOptimization="1"
+ >
+ <Tool
+ Name="VCPreBuildEventTool"
+ />
+ <Tool
+ Name="VCCustomBuildTool"
+ />
+ <Tool
+ Name="VCXMLDataGeneratorTool"
+ />
+ <Tool
+ Name="VCWebServiceProxyGeneratorTool"
+ />
+ <Tool
+ Name="VCMIDLTool"
+ />
+ <Tool
+ Name="VCCLCompilerTool"
+ Optimization="2"
+ EnableIntrinsicFunctions="true"
+ AdditionalIncludeDirectories="$(ProjectDir)src\include\"
+ PreprocessorDefinitions="WIN32;NDEBUG;_LIB;AO_BUILDING_LIBAO;_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS"
+ ExceptionHandling="0"
+ RuntimeLibrary="0"
+ EnableFunctionLevelLinking="true"
+ UsePrecompiledHeader="0"
+ ProgramDataBaseFileName="$(IntDir)\vc90.pdb"
+ WarningLevel="3"
+ DebugInformationFormat="0"
+ />
+ <Tool
+ Name="VCManagedResourceCompilerTool"
+ />
+ <Tool
+ Name="VCResourceCompilerTool"
+ />
+ <Tool
+ Name="VCPreLinkEventTool"
+ />
+ <Tool
+ Name="VCLibrarianTool"
+ OutputFile="$(OutDir)\$(ProjectName)-mt.lib"
+ />
+ <Tool
+ Name="VCALinkTool"
+ />
+ <Tool
+ Name="VCXDCMakeTool"
+ />
+ <Tool
+ Name="VCBscMakeTool"
+ />
+ <Tool
+ Name="VCFxCopTool"
+ />
+ <Tool
+ Name="VCPostBuildEventTool"
+ CommandLine="xcopy "$(ProjectDir)src\include\ao\ao.h" "$(SolutionDir)build\temp\include\ao\" /I /Y /D
xcopy "$(ProjectDir)src\include\ao\os_types.h" "$(SolutionDir)build\temp\include\ao\" /I /Y /D
"
+ />
+ </Configuration>
+ </Configurations>
+ <References>
+ </References>
+ <Files>
+ <Filter
+ Name="Sources"
+ Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
+ UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
+ >
+ <File
+ RelativePath=".\src\src\ao_null.c"
+ >
+ </File>
+ <File
+ RelativePath=".\src\src\ao_wmm.c"
+ >
+ </File>
+ <File
+ RelativePath=".\src\src\audio_out.c"
+ >
+ </File>
+ <File
+ RelativePath=".\src\src\config.c"
+ >
+ </File>
+ </Filter>
+ <Filter
+ Name="Include"
+ >
+ <Filter
+ Name="ao"
+ >
+ <File
+ RelativePath=".\src\include\ao\ao.h"
+ >
+ </File>
+ <File
+ RelativePath=".\src\include\ao\ao_private.h"
+ >
+ </File>
+ <File
+ RelativePath=".\src\include\ao\os_types.h"
+ >
+ </File>
+ <File
+ RelativePath=".\src\include\ao\plugin.h"
+ >
+ </File>
+ </Filter>
+ </Filter>
+ </Files>
+ <Globals>
+ </Globals>
+</VisualStudioProject>
diff --git a/libao/src/AUTHORS b/libao/src/AUTHORS
new file mode 100644
index 0000000..30f7267
--- /dev/null
+++ b/libao/src/AUTHORS
@@ -0,0 +1,4 @@
+Aaron Holtzman
+Stan Seibert <indigo@aztec.asu.edu>
+Jack Moffitt <jack@icecast.org>
+Ralph Giles <giles@ashlu.bc.ca>
diff --git a/libao/src/CHANGES b/libao/src/CHANGES
new file mode 100644
index 0000000..99787b7
--- /dev/null
+++ b/libao/src/CHANGES
@@ -0,0 +1,103 @@
+1.1.0 - February 21, 2011
+ - Add autofoo ld symbol versioning to build system
+ - Update Roar driver to latest API
+ - Fix Roar driver to not block on SLP lookup during probe
+ - Improve/correct latency setup in ALSA (see Trac #1762)
+ - Add missing ctype.h header in build (see Trac #1760)
+ - Move toward more consistent option naming across drivers
+ - Fix Mac OS X AUHAL support to properly handle suspend/wakeup,
+ headphone plug/unplug, other hardware events
+ - Correct ao_example.c source to not pass dangling pointer for
+ the matrix argument.
+ - Add 24 bit playback to Pulse plugin
+ - Fix 24 bit playback in ALSA plugin
+ - Fix segfaults when closing a driver that did not successfully open.
+ - Fix compilation of sndio plugin
+ - Fix building Mac OS X driver AUHAL compilation for 10.5,
+ restore Mac OS X 10.4 support
+
+1.0.0 - March 25, 2010
+ - AO returns to active development
+ - Added surround channel mapping API and capability
+ - Update and test all drivers on modern installs
+ - New config file options
+ - Driver options may be specifid in config file
+ - Support for MacosX < 10.5 dropped, driver modded to AUHAL
+ - Build in WMM driver rather than using dlopen()
+ - Added Roar Audio driver
+ - Added OpenBSD SNDIO driver
+ - Work around ESD non-4096 byte write bug
+ - Work around aRts server crash bug
+ - Workaround for VIA82xx click/crackle bugs under ALSA
+ - Remove dead/unused drivers (solaris, alasa05, mmsound)
+ - Numerous patches from multiple downstreams
+
+0.8.8 - May 24, 2007
+ - New win32 driver
+ - Few fixes and changes in autotools and configuration files.
+
+0.8.7 - unreleased snapshot
+- obsolete alsa device renamed to alsa05
+- the 'alsa' device now uses the 0.9/1.0 API
+- ALSA driver fixes
+
+0.8.6 - January 11, 2005
+- Added Polypaudio driver(libao-polyp 0.4)
+ from Lennart Poettering <mzyvonbcbylc (at) 0pointer (dot) de>
+- Use esd_close() in the esd driver
+- Broaden sample rate tolerance in the OSS driver for nForce
+ compatibility
+
+0.8.5 - March 19, 2004
+- Support now for the ALSA 1.0 API
+- Can build with --disable-esd option again
+- Minor build fixes
+- ALSA mmap() mode can be enabled/disabled at runtime using "use_mmap"
+ option.
+- Patch to OSS plugin to fix skipping issues with some drivers
+ (like emu10k1).
+
+0.8.4 - October 4, 2003
+- Added AIX sound driver from Stefan Tibus <sjti@gmx.net>
+- Committed some fixes from the Fink project to allow compiling on
+ OS X (still with all the dlcompat stuff)
+- Improvements in plugin detection code by David Walser, especially
+ when ESD or aRts are present.
+- NAS plugin from Antoine Mathys.
+- Portability fixes for various platforms (including dlopen() bugs)
+ including HP-UX and *BSD.
+- Memory/resource leak fixes
+- Significant fixes to ALSA 0.9.x plugin by Kevin Cody, Jr. This
+ should fix stuttering audio for mpg321 users. The
+ --enable-alsa09-mmap option to ./configure turns on memory-mapped
+ I/O. Note this is an experimental feature and causes some problems
+ with some sound card drivers and also users of the dmix software mixer.
+
+0.8.3 - July 2002
+- fix to ao.m4 macro
+- minor alsa09 plugin updates
+- fixes to irix plugin
+
+0.8.2 - December 2001
+- alsa09 plugin updated
+
+0.8.0 - August 2000
+- Major API rewrite. Old apps and plugins will not work with this library!
+- Default driver detection now works.
+- /etc/libao.conf and ~/.libao config files now supported, see libao.conf man
+ page for details.
+- WAV files can now be piped to non-picky applications. (Please don't
+ complain if this fails. You shouldn't be using be using WAV for this
+ anyway.)
+- Various portability fixes for Solaris and *BSD.
+
+0.7.0 - June 2000
+- minor build fixes for different platforms
+
+0.6.0 - December 2000
+- slight api modification with ao_append_option()
+- fixed an option leak
+
+0.5.0 - November 2000
+- first official release under the Xiphophorus projects
+
diff --git a/libao/src/COPYING b/libao/src/COPYING
new file mode 100644
index 0000000..d60c31a
--- /dev/null
+++ b/libao/src/COPYING
@@ -0,0 +1,340 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
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+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ 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 of the License, 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, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+ Gnomovision version 69, Copyright (C) year name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/libao/src/README b/libao/src/README
new file mode 100644
index 0000000..6a08b56
--- /dev/null
+++ b/libao/src/README
@@ -0,0 +1,70 @@
+libao - A Cross-platform Audio Library, Version 0.8.6
+
+Originally Copyright (C) Aaron Holtzman - May 1999
+Changes Copyright (C) Jack Moffitt - October 2000
+Changes Copyright (C) Stan Seibert - July 2000-March 2004
+libao-pulse Copyright (C) Lennart Poettering 2004-2006
+Changes Copyright (C) 2004-2005 Xiph.org Foundation
+Changes Maintainer Benjamin Gerard
+
+libao 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.
+
+libao 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 GNU Make; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+---------------------------------------------------------------------
+
+OVERVIEW
+
+Libao is a cross-platform audio library that allows programs to output
+audio using a simple API on a wide variety of platforms. It currently
+supports:
+ * Null output
+ * WAV files
+ * OSS (Open Sound System)
+ * ESD (ESounD or Enlightened Sound Daemon)
+ * ALSA (Advanced Linux Sound Architecture)
+ * PulseAudio (next generation GNOME sound server)
+ * AIX
+ * Solaris (untested)
+ * IRIX (untested)
+
+HISTORY
+
+Libao began life as cross-platform audio library inside of ac3dec, an
+AC3 decoder by Aaron Holtzman that is part of the LiViD project. When
+ogg123 (part of the command line vorbis tools) needed a way to play
+audio on multiple operating systems, someone on the vorbis-dev mailing
+list suggested the libao library as a possible way to add cross-platform
+support to ogg123. Stan Seibert downloaded the libao library, severely
+hacked it up in order to make the build process simpler and support
+multiple live-playback devices. (The original code allowed one live
+playback driver, the wav driver, and a null driver to be compiled into
+the library.) Jack Moffitt got it supporting dynamically loaded plugins
+so that binary versions of libao could be provided. The API was revised
+for version 0.8.0.
+
+This code is being maintained by Stan Seibert (volsung@xiph.org)
+and various other individuals. Please DO NOT annoy Aaron Holtzman about
+bugs, features, comments, etc. regarding this code.
+
+WORKAROUNDS
+
+The OSS emulation in ALSA deviates from the OSS spec by not returning
+immediately from an open() call if the OSS device is already in use.
+Instead, it makes the application wait until the device is available.
+This is not desirable during the autodetection phase of libao, so a
+workaround has been included in the source. Since the workaround
+itself violates the OSS spec and causes other problems on some
+platforms, it is only enabled when ALSA is detected. The workaround
+can be turned on or off by passing the --enable-broken-oss or
+--disable-broken-oss flag to the configure script.
diff --git a/libao/src/include/ao/ao.h b/libao/src/include/ao/ao.h
new file mode 100644
index 0000000..cb8c035
--- /dev/null
+++ b/libao/src/include/ao/ao.h
@@ -0,0 +1,139 @@
+/*
+ *
+ * ao.h
+ *
+ * Original Copyright (C) Aaron Holtzman - May 1999
+ * Modifications Copyright (C) Stan Seibert - July 2000, July 2001
+ * More Modifications Copyright (C) Jack Moffitt - October 2000
+ *
+ * This file is part of libao, a cross-platform audio outputlibrary. See
+ * README for a history of this source code.
+ *
+ * libao 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.
+ *
+ * libao 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 GNU Make; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+#ifndef __AO_H__
+#define __AO_H__
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include "os_types.h"
+
+/* --- Constants ---*/
+
+#define AO_TYPE_LIVE 1
+#define AO_TYPE_FILE 2
+
+
+#define AO_ENODRIVER 1
+#define AO_ENOTFILE 2
+#define AO_ENOTLIVE 3
+#define AO_EBADOPTION 4
+#define AO_EOPENDEVICE 5
+#define AO_EOPENFILE 6
+#define AO_EFILEEXISTS 7
+#define AO_EBADFORMAT 8
+
+#define AO_EFAIL 100
+
+
+#define AO_FMT_LITTLE 1
+#define AO_FMT_BIG 2
+#define AO_FMT_NATIVE 4
+
+/* --- Structures --- */
+
+typedef struct ao_info {
+ int type; /* live output or file output? */
+ char *name; /* full name of driver */
+ char *short_name; /* short name of driver */
+ char *author; /* driver author */
+ char *comment; /* driver comment */
+ int preferred_byte_format;
+ int priority;
+ char **options;
+ int option_count;
+} ao_info;
+
+typedef struct ao_functions ao_functions;
+typedef struct ao_device ao_device;
+
+typedef struct ao_sample_format {
+ int bits; /* bits per sample */
+ int rate; /* samples per second (in a single channel) */
+ int channels; /* number of audio channels */
+ int byte_format; /* Byte ordering in sample, see constants below */
+ char *matrix; /* input channel location/ordering */
+} ao_sample_format;
+
+typedef struct ao_option {
+ char *key;
+ char *value;
+ struct ao_option *next;
+} ao_option;
+
+#if defined(AO_BUILDING_LIBAO)
+#include "ao_private.h"
+#endif
+
+/* --- Functions --- */
+
+/* library setup/teardown */
+void ao_initialize(void);
+void ao_shutdown(void);
+
+/* device setup/playback/teardown */
+int ao_append_global_option(const char *key,
+ const char *value);
+int ao_append_option(ao_option **options,
+ const char *key,
+ const char *value);
+void ao_free_options(ao_option *options);
+ao_device* ao_open_live(int driver_id,
+ ao_sample_format *format,
+ ao_option *option);
+ao_device* ao_open_file(int driver_id,
+ const char *filename,
+ int overwrite,
+ ao_sample_format *format,
+ ao_option *option);
+
+int ao_play(ao_device *device,
+ char *output_samples,
+ uint_32 num_bytes);
+int ao_close(ao_device *device);
+
+/* driver information */
+int ao_driver_id(const char *short_name);
+int ao_default_driver_id(void);
+ao_info *ao_driver_info(int driver_id);
+ao_info **ao_driver_info_list(int *driver_count);
+char *ao_file_extension(int driver_id);
+
+/* miscellaneous */
+int ao_is_big_endian(void);
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __AO_H__ */
diff --git a/libao/src/include/ao/ao_private.h b/libao/src/include/ao/ao_private.h
new file mode 100644
index 0000000..5d4dfd6
--- /dev/null
+++ b/libao/src/include/ao/ao_private.h
@@ -0,0 +1,211 @@
+/*
+ *
+ * ao_private.c
+ *
+ * Copyright (C) Stan Seibert - July 2001
+ *
+ * This file is part of libao, a cross-platform audio output library. See
+ * README for a history of this source code.
+ *
+ * libao 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.
+ *
+ * libao 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 GNU Make; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#ifndef __AO_PRIVATE_H__
+#define __AO_PRIVATE_H__
+
+/* --- Operating System Compatibility --- */
+
+/*
+ OpenBSD systems with a.out binaries require dlsym()ed symbols to be
+ prepended with an underscore, so we need the following nasty #ifdef
+ hack.
+*/
+#if defined(__OpenBSD__) && !defined(__ELF__)
+#define dlsym(h,s) dlsym(h, "_" s)
+#endif
+
+/* RTLD_NOW is the preferred symbol resolution behavior, but
+ * some platforms do not support it. The autoconf script will have
+ * already defined DLOPEN_FLAG if the default is unacceptable on the
+ * current platform.
+ *
+ * ALSA requires RTLD_GLOBAL.
+ */
+#if !defined(DLOPEN_FLAG)
+#define DLOPEN_FLAG (RTLD_NOW | RTLD_GLOBAL)
+#endif
+
+/* --- Constants --- */
+
+#ifndef AO_SYSTEM_CONFIG
+#define AO_SYSTEM_CONFIG "/etc/libao.conf"
+#endif
+#ifndef AO_USER_CONFIG
+#define AO_USER_CONFIG "/.libao"
+#endif
+
+/* --- Structures --- */
+
+typedef struct ao_config {
+ char *default_driver;
+} ao_config;
+
+typedef enum {
+ AO_OUTPUT_MATRIX_UNDEFINED=0, /* matrix unset */
+ AO_OUTPUT_MATRIX_FIXED=1, /* fixed, immutable channel order, eg, ALSA */
+ AO_OUTPUT_MATRIX_COLLAPSIBLE=2, /* fixed order but only used channels sent, eg MACOS */
+ AO_OUTPUT_MATRIX_PERMUTABLE=3, /* channel map is fully permutable. eg Pulse */
+} ao_outorder;
+
+struct ao_device {
+ int type; /* live output or file output? */
+ int driver_id;
+ ao_functions *funcs;
+ FILE *file; /* File for output if this is a file driver */
+
+ /* input not necessarily == output. Right now, byte order, channel
+ count, and channel mappings may be altered. */
+
+ int client_byte_format;
+ int machine_byte_format;
+ int driver_byte_format;
+ char *swap_buffer;
+ int swap_buffer_size; /* Bytes allocated to swap_buffer */
+
+ int input_channels;
+ int output_channels;
+ int bytewidth;
+ int rate;
+
+ ao_outorder output_matrix_order;
+ char *output_matrix; /* physical output channel
+ ordering/numbering matrix set by
+ driver if there's a channel
+ name->number mapping useful to the
+ backend driver in some way. Eg,
+ Pulse has fully permutable input
+ channel masks, but specific channels
+ locations (eg, 'Center') still have
+ assigned numbers even if not a
+ specific slot int he input
+ interleave. */
+ int output_mask;
+ int *input_map; /* input permutation mapping from each
+ input channel to a location in the
+ output_matrix. Made by ao_open,
+ intended for convenience use by
+ driver in device open. */
+
+ char *inter_matrix; /* channel matrix as presented to the
+ backend API */
+ int *inter_permute; /* maps from each channel in the
+ inter_matrix back to an input channel
+ (if any) */
+
+ void *internal; /* Pointer to driver-specific data */
+
+ int verbose;
+};
+
+struct ao_functions {
+ int (*test)(void);
+ ao_info* (*driver_info)(void);
+ int (*device_init)(ao_device *device);
+ int (*set_option)(ao_device *device, const char *key,
+ const char *value);
+ int (*open)(ao_device *device, ao_sample_format *format);
+ int (*play)(ao_device *device, const char *output_samples,
+ uint_32 num_bytes);
+ int (*close)(ao_device *device);
+ void (*device_clear)(ao_device *device);
+ char* (*file_extension)(void);
+};
+
+/* --- Functions --- */
+
+void ao_read_config_files (ao_config *config);
+
+#define adebug(format, ...) {\
+ if(device->verbose==2){ \
+ if(strcmp(format,"\n")){ \
+ if(device->funcs->driver_info()->short_name){ \
+ fprintf(stderr,"ao_%s debug: " format,device->funcs->driver_info()->short_name,##__VA_ARGS__); \
+ }else{ \
+ fprintf(stderr,"debug: " format,##__VA_ARGS__); \
+ } \
+ }else{ \
+ fprintf(stderr,"\n"); \
+ } \
+ } \
+ }
+
+#define averbose(format, ...) {\
+ if(device->verbose>0){ \
+ if(strcmp(format,"\n")){ \
+ if(device->funcs->driver_info()->short_name){ \
+ fprintf(stderr,"ao_%s info: " format,device->funcs->driver_info()->short_name,##__VA_ARGS__); \
+ }else{ \
+ fprintf(stderr,"info: " format,##__VA_ARGS__); \
+ } \
+ }else{ \
+ fprintf(stderr,"\n"); \
+ } \
+ } \
+ }
+
+#define ainfo(format, ...) {\
+ if(device->verbose>=0){ \
+ if(strcmp(format,"\n")){ \
+ if(device->funcs->driver_info()->short_name){ \
+ fprintf(stderr,"ao_%s info: " format,device->funcs->driver_info()->short_name,##__VA_ARGS__); \
+ }else{ \
+ fprintf(stderr,"info: " format,##__VA_ARGS__); \
+ } \
+ }else{ \
+ fprintf(stderr,"\n"); \
+ } \
+ } \
+ }
+
+#define awarn(format, ...) {\
+ if(device->verbose>=0){ \
+ if(strcmp(format,"\n")){ \
+ if(device->funcs->driver_info()->short_name){ \
+ fprintf(stderr,"ao_%s WARNING: " format,device->funcs->driver_info()->short_name,##__VA_ARGS__); \
+ }else{ \
+ fprintf(stderr,"WARNING: " format,##__VA_ARGS__); \
+ } \
+ }else{ \
+ fprintf(stderr,"\n"); \
+ } \
+ } \
+ }
+
+#define aerror(format, ...) { \
+ if(device->verbose>=0){ \
+ if(strcmp(format,"\n")){ \
+ if(device->funcs->driver_info()->short_name){ \
+ fprintf(stderr,"ao_%s ERROR: " format,device->funcs->driver_info()->short_name,##__VA_ARGS__); \
+ }else{ \
+ fprintf(stderr,"ERROR: " format,##__VA_ARGS__); \
+ } \
+ }else{ \
+ fprintf(stderr,"\n"); \
+ } \
+ } \
+ }
+
+#endif /* __AO_PRIVATE_H__ */
diff --git a/libao/src/include/ao/os_types.h b/libao/src/include/ao/os_types.h
new file mode 100644
index 0000000..8a56553
--- /dev/null
+++ b/libao/src/include/ao/os_types.h
@@ -0,0 +1,39 @@
+/*
+ *
+ * os_types.h
+ *
+ * Original Copyright (C) Aaron Holtzman - May 1999
+ * Modifications Copyright (C) Stan Seibert - July 2000
+ *
+ * This file is part of libao, a cross-platform audio output library. See
+ * README for a history of this source code.
+ *
+ * libao 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.
+ *
+ * libao 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 GNU Make; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+/* Set type sizes for this platform (Requires Autoconf) */
+
+#ifndef __OS_TYPES_H__
+#define __OS_TYPES_H__
+
+typedef unsigned char uint_8;
+typedef unsigned short uint_16;
+typedef unsigned int uint_32;
+typedef signed char sint_8;
+typedef signed short sint_16;
+typedef signed int sint_32;
+
+#endif /* __OS_TYPES_H__ */
diff --git a/libao/src/include/ao/plugin.h b/libao/src/include/ao/plugin.h
new file mode 100644
index 0000000..29a3d96
--- /dev/null
+++ b/libao/src/include/ao/plugin.h
@@ -0,0 +1,51 @@
+/*
+ *
+ * plugin.h - function declarations for libao plugins
+ *
+ * Copyright (C) Stan Seibert - June 2001
+ *
+ * This file is part of libao, a cross-platform audio outputlibrary. See
+ * README for a history of this source code.
+ *
+ * libao 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.
+ *
+ * libao 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 GNU Make; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+#ifndef __PLUGIN_H__
+#define __PLUGIN_H__
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+#include <stdlib.h>
+#include "os_types.h"
+
+int ao_plugin_test();
+ao_info *ao_plugin_driver_info();
+int ao_plugin_device_init(ao_device *device);
+int ao_plugin_set_option(ao_device *device, const char *key, const char *value);
+int ao_plugin_open(ao_device *device, ao_sample_format *format);
+int ao_plugin_play(ao_device *device, const char *output_samples,
+ uint_32 num_bytes);
+int ao_plugin_close(ao_device *device);
+void ao_plugin_device_clear(ao_device *device);
+char *ao_plugin_file_extension();
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __PLUGIN_H__ */
diff --git a/libao/src/src/ao_aixs.c b/libao/src/src/ao_aixs.c
new file mode 100644
index 0000000..d8ba6ed
--- /dev/null
+++ b/libao/src/src/ao_aixs.c
@@ -0,0 +1,256 @@
+/*
+ *
+ * ao_aixs.c AIX (5.1)
+ *
+ * Original Copyright (C) Stefan Tibus - August 2002
+ *
+ * libao 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.
+ *
+ * libao 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 GNU Make; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ********************************************************************
+
+ last mod: $Id: ao_aixs.c 17718 2010-12-06 20:09:29Z xiphmont $
+
+ ********************************************************************/
+
+#ifdef HAVE_SYS_AUDIO_H
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/audio.h>
+
+#include <ao/ao.h>
+#include <ao/plugin.h>
+
+
+/*
+ * default audio device to be used,
+ * possible options:
+ * /dev/paud0/1 on PCI machines with the Crystal chipset
+ * /dev/baud0/1 on MCA machines with the Crystal chipset
+ * /dev/acpa0/1 on MCA machines with the ACPA
+ */
+#ifndef AO_AIX_DEFAULT_DEV
+#define AO_AIX_DEFAULT_DEV "/dev/baud0/1"
+#define AO_AIX_DEFAULT_DEV2 "/dev/paud0/1"
+#define AO_AIX_DEFAULT_DEV3 "/dev/acpa0/1"
+#endif
+
+
+static char *ao_aixs_options[] = {"dev","id","matrix","verbose","quiet","debug"};
+ao_info ao_aixs_info = {
+ AO_TYPE_LIVE,
+ "AIX audio driver output",
+ "aixs",
+ "Stefan Tibus <sjti@gmx.net>",
+ "Outputs to the AIX audio system.",
+ AO_FMT_NATIVE,
+ 20,
+ ao_aixs_options,
+ sizeof(ao_aixs_options)/sizeof(*ao_aixs_options)
+};
+
+
+typedef struct ao_aixs_internal {
+ char *dev;
+ int id;
+ int fd;
+} ao_aixs_internal;
+
+
+int ao_aixs_test()
+{
+ int fd;
+
+ fd = open(AO_AIX_DEFAULT_DEV, O_WRONLY);
+ if(fd<0)
+ fd = open(AO_AIX_DEFAULT_DEV2, O_WRONLY);
+ if(fd<0)
+ fd = open(AO_AIX_DEFAULT_DEV3, O_WRONLY);
+ if(fd<0)
+ return 0; /* Cannot use this plugin with default parameters */
+
+ close(fd);
+ return 1; /* This plugin works in default mode */
+}
+
+
+ao_info *ao_aixs_driver_info(void)
+{
+ return &ao_aixs_info;
+}
+
+
+int ao_aixs_device_init(ao_device *device)
+{
+ ao_aixs_internal *internal;
+
+ internal = (ao_aixs_internal *) calloc(1,sizeof(ao_aixs_internal));
+
+ if (internal == NULL)
+ return 0; /* Could not initialize device memory */
+
+ device->internal = internal;
+ device->output_matrix_order = AO_OUTPUT_MATRIX_FIXED;
+
+ return 1; /* Memory alloc successful */
+}
+
+int ao_aixs_set_option(ao_device *device, const char *key, const char *value)
+{
+ ao_aixs_internal *internal = (ao_aixs_internal *) device->internal;
+
+ if (!strcmp(key, "dev")) {
+ if(internal->dev)
+ free(internal->dev);
+ internal->dev = strdup(value);
+ }
+ if (!strcmp(key, "id")) {
+ internal->id = atoi(value);
+ if(internal->dev)
+ free(internal->dev);
+ internal->dev = NULL;
+ }
+
+ return 1;
+}
+
+
+int ao_aixs_open(ao_device *device, ao_sample_format *format)
+{
+ ao_aixs_internal *internal = (ao_aixs_internal *) device->internal;
+
+ audio_init init;
+ audio_control control;
+ audio_change change;
+
+ if(!internal->dev){
+ char buffer[80];
+ int fd;
+
+ sprintf(buffer,"/dev/baud%d/1",id);
+ fd = open(buffer, O_WRONLY);
+ if(fd<0){
+ sprintf(buffer,"/dev/paud%d/1",id);
+ fd = open(buffer, O_WRONLY);
+ }
+ if(fd<0){
+ sprintf(buffer,"/dev/acpa%d/1",id);
+ fd = open(buffer, O_WRONLY);
+ }
+ if(fd<0) return 0;
+ internal->fd = fd;
+ internal->dev = strdup(buffer);
+ }else
+ if ( (internal->fd = open(internal->dev, O_WRONLY)) < 0 )
+ return 0;
+
+ init.srate = format->rate;
+ init.bits_per_sample = format->bits;
+ init.channels = device->output_channels;
+ init.mode = AUDIO_PCM;
+ init.flags = AUDIO_BIG_ENDIAN | AUDIO_TWOS_COMPLEMENT;
+ init.operation = AUDIO_PLAY;
+
+ if (ioctl(internal->fd, AUDIO_INIT, &init) < 0) {
+ close(internal->fd);
+ return 0; /* Unsupported audio format */
+ }
+
+ change.balance = 0x3fff0000;
+ change.volume = 0x3fff0000;
+ change.monitor = AUDIO_IGNORE;
+ change.input = AUDIO_IGNORE;
+ change.output = AUDIO_OUTPUT_1;
+
+ control.ioctl_request = AUDIO_CHANGE;
+ control.position = 0;
+ control.request_info = &change;
+
+ if (ioctl(internal->fd, AUDIO_CONTROL, &control) < 0) {
+ close(internal->fd);
+ return 0;
+ }
+
+ control.ioctl_request = AUDIO_START;
+ control.request_info = NULL;
+
+ if (ioctl(internal->fd, AUDIO_CONTROL, &control) < 0) {
+ close(internal->fd);
+ return 0;
+ }
+
+ device->driver_byte_format = AO_FMT_NATIVE;
+ if(!device->inter_matrix){
+ /* set up matrix such that users are warned about > stereo playback */
+ if(device->output_channels<=2)
+ device->inter_matrix=strdup("L,R");
+ //else no matrix, which results in a warning
+ }
+
+ return 1;
+}
+
+
+int ao_aixs_play(ao_device *device, const char *output_samples,
+ uint_32 num_bytes)
+{
+ ao_aixs_internal *internal = (ao_aixs_internal *) device->internal;
+
+ if (write(internal->fd, output_samples, num_bytes) < 0)
+ return 0;
+ else
+ return 1;
+}
+
+
+int ao_aixs_close(ao_device *device)
+{
+ ao_aixs_internal *internal = (ao_aixs_internal *) device->internal;
+
+ if(internal->fd)
+ close(internal->fd);
+ internal->fd=-1;
+ return 1;
+}
+
+
+void ao_aixs_device_clear(ao_device *device)
+{
+ ao_aixs_internal *internal = (ao_aixs_internal *) device->internal;
+
+ if(internal->dev)
+ free(internal->dev);
+ free(internal);
+ device->internal = NULL;
+}
+
+ao_functions ao_aixs = {
+ ao_aixs_test,
+ ao_aixs_driver_info,
+ ao_aixs_device_init,
+ ao_aixs_set_option,
+ ao_aixs_open,
+ ao_aixs_play,
+ ao_aixs_close,
+ ao_aixs_device_clear
+};
+
+#endif
diff --git a/libao/src/src/ao_au.c b/libao/src/src/ao_au.c
new file mode 100644
index 0000000..f6aad2d
--- /dev/null
+++ b/libao/src/src/ao_au.c
@@ -0,0 +1,250 @@
+/*
+ *
+ * ao_au.c
+ *
+ * Copyright (C) Wil Mahan - May 2001
+ *
+ * This file is part of libao, a cross-platform audio output library. See
+ * README for a history of this source code.
+ *
+ * libao 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.
+ *
+ * libao 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 GNU Make; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ********************************************************************
+
+ last mod: $Id: ao_au.c 17718 2010-12-06 20:09:29Z xiphmont $
+
+ ********************************************************************/
+
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#ifndef _MSC_VER
+# include <unistd.h>
+#endif
+#include <ao/ao.h>
+#include <ao/plugin.h>
+
+#define AUDIO_FILE_MAGIC ((uint_32)0x2e736e64) /* ".snd" */
+
+#define AUDIO_UNKNOWN_SIZE (~0) /* (unsigned) -1 */
+
+/* Format codes (not comprehensive) */
+#define AUDIO_FILE_ENCODING_LINEAR_8 (2) /* 8-bit linear PCM */
+#define AUDIO_FILE_ENCODING_LINEAR_16 (3) /* 16-bit linear PCM */
+
+#define AU_HEADER_LEN (28)
+
+#define DEFAULT_SWAP_BUFFER_SIZE 2048
+
+/* Write a uint_32 in big-endian order. */
+#define WRITE_U32(buf, x) \
+ *(buf) = (unsigned char)(((x)>>24)&0xff);\
+ *((buf)+1) = (unsigned char)(((x)>>16)&0xff);\
+ *((buf)+2) = (unsigned char)(((x)>>8)&0xff);\
+ *((buf)+3) = (unsigned char)((x)&0xff);
+
+typedef struct Audio_filehdr {
+ uint_32 magic; /* magic number */
+ uint_32 hdr_size; /* offset of the data */
+ uint_32 data_size; /* length of data (optional) */
+ uint_32 encoding; /* data format code */
+ uint_32 sample_rate; /* samples per second */
+ uint_32 channels; /* number of interleaved channels */
+ char info[4]; /* optional text information */
+} Audio_filehdr;
+
+static char *ao_au_options[] = {"matrix","verbose","quiet","debug"};
+static ao_info ao_au_info =
+{
+ AO_TYPE_FILE,
+ "AU file output",
+ "au",
+ "Wil Mahan <wtm2@duke.edu>",
+ "Sends output to a .au file",
+ AO_FMT_BIG,
+ 0,
+ ao_au_options,
+ sizeof(ao_au_options)/sizeof(*ao_au_options)
+};
+
+typedef struct ao_au_internal
+{
+ Audio_filehdr au;
+} ao_au_internal;
+
+
+static int ao_au_test(void)
+{
+ return 1; /* File driver always works */
+}
+
+
+static ao_info *ao_au_driver_info(void)
+{
+ return &ao_au_info;
+}
+
+
+static int ao_au_device_init(ao_device *device)
+{
+ ao_au_internal *internal;
+
+ internal = (ao_au_internal *) malloc(sizeof(ao_au_internal));
+
+ if (internal == NULL)
+ return 0; /* Could not initialize device memory */
+
+ memset(&(internal->au), 0, sizeof(internal->au));
+
+ device->internal = internal;
+ device->output_matrix_order = AO_OUTPUT_MATRIX_FIXED;
+
+ return 1; /* Memory alloc successful */
+}
+
+
+static int ao_au_set_option(ao_device *device, const char *key,
+ const char *value)
+{
+ return 1; /* No options! */
+}
+
+
+static int ao_au_open(ao_device *device, ao_sample_format *format)
+{
+ ao_au_internal *internal = (ao_au_internal *) device->internal;
+ unsigned char buf[AU_HEADER_LEN];
+
+ /* The AU format is big-endian */
+ device->driver_byte_format = AO_FMT_BIG;
+
+ /* Fill out the header */
+ internal->au.magic = AUDIO_FILE_MAGIC;
+ internal->au.channels = device->output_channels;
+ if (format->bits == 8)
+ internal->au.encoding = AUDIO_FILE_ENCODING_LINEAR_8;
+ else if (format->bits == 16)
+ internal->au.encoding = AUDIO_FILE_ENCODING_LINEAR_16;
+ else {
+ /* Only 8 and 16 bits are supported at present. */
+ return 0;
+ }
+ internal->au.sample_rate = format->rate;
+ internal->au.hdr_size = AU_HEADER_LEN;
+
+ /* From the AU specification: "When audio files are passed
+ * through pipes, the 'data_size' field may not be known in
+ * advance. In such cases, the 'data_size' should be set
+ * to AUDIO_UNKNOWN_SIZE."
+ */
+ internal->au.data_size = AUDIO_UNKNOWN_SIZE;
+ /* strncpy(state->au.info, "OGG ", 4); */
+
+ /* Write the header in big-endian order */
+ WRITE_U32(buf, internal->au.magic);
+ WRITE_U32(buf + 4, internal->au.hdr_size);
+ WRITE_U32(buf + 8, internal->au.data_size);
+ WRITE_U32(buf + 12, internal->au.encoding);
+ WRITE_U32(buf + 16, internal->au.sample_rate);
+ WRITE_U32(buf + 20, internal->au.channels);
+ strncpy (buf + 24, internal->au.info, 4);
+
+ if (fwrite(buf, sizeof(char), AU_HEADER_LEN, device->file)
+ != AU_HEADER_LEN) {
+ return 0; /* Error writing header */
+ }
+
+ if(!device->inter_matrix){
+ /* set up matrix such that users are warned about > stereo playback */
+ if(device->output_channels<=2)
+ device->inter_matrix=strdup("L,R");
+ //else no matrix, which results in a warning
+ }
+
+
+ return 1;
+}
+
+
+/*
+ * play the sample to the already opened file descriptor
+ */
+static int ao_au_play(ao_device *device, const char *output_samples,
+ uint_32 num_bytes)
+{
+ if (fwrite(output_samples, sizeof(char), num_bytes,
+ device->file) < num_bytes)
+ return 0;
+ else
+ return 1;
+}
+
+static int ao_au_close(ao_device *device)
+{
+ ao_au_internal *internal = (ao_au_internal *) device->internal;
+
+ off_t size;
+ unsigned char buf[4];
+
+ /* Try to find the total file length, including header */
+ size = ftell(device->file);
+
+ /* It's not a problem if the lseek() fails; the AU
+ * format does not require a file length. This is
+ * useful for writing to non-seekable files (e.g.
+ * pipes).
+ */
+ if (size > 0) {
+ internal->au.data_size = size - AU_HEADER_LEN;
+
+ /* Rewind the file */
+ if (fseek(device->file, 8 /* offset of data_size */,
+ SEEK_SET) < 0)
+ {
+ return 1; /* Seek failed; that's okay */
+ }
+
+ /* Fill in the file length */
+ WRITE_U32 (buf, internal->au.data_size);
+ if (fwrite(buf, sizeof(char), 4, device->file) < 4) {
+ return 1; /* Header write failed; that's okay */
+ }
+ }
+
+ return 1;
+}
+
+
+static void ao_au_device_clear(ao_device *device)
+{
+ ao_au_internal *internal = (ao_au_internal *) device->internal;
+
+ free(internal);
+ device->internal=NULL;
+}
+
+ao_functions ao_au = {
+ ao_au_test,
+ ao_au_driver_info,
+ ao_au_device_init,
+ ao_au_set_option,
+ ao_au_open,
+ ao_au_play,
+ ao_au_close,
+ ao_au_device_clear
+};
diff --git a/libao/src/src/ao_null.c b/libao/src/src/ao_null.c
new file mode 100644
index 0000000..cd7271d
--- /dev/null
+++ b/libao/src/src/ao_null.c
@@ -0,0 +1,153 @@
+/*
+ *
+ * ao_null.c
+ *
+ * Original Copyright (C) Aaron Holtzman - May 1999
+ * Modifications Copyright (C) Stan Seibert - July 2000, July 2001
+ *
+ * This file is part of libao, a cross-platform audio output library. See
+ * README for a history of this source code.
+ *
+ * libao 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.
+ *
+ * libao 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 GNU Make; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ********************************************************************
+
+ last mod: $Id: ao_null.c 17718 2010-12-06 20:09:29Z xiphmont $
+
+ ********************************************************************/
+
+#include <stdio.h>
+#include <string.h>
+#include <ao/ao.h>
+
+static char *ao_null_options[] = {
+ "debug","verbose","matrix","quiet"
+};
+static ao_info ao_null_info = {
+ AO_TYPE_LIVE,
+ "Null output",
+ "null",
+ "Stan Seibert <volsung@asu.edu>",
+ "This driver does nothing.",
+ AO_FMT_NATIVE,
+ 0,
+ ao_null_options,
+ sizeof(ao_null_options)/sizeof(*ao_null_options)
+};
+
+
+typedef struct ao_null_internal {
+ unsigned long byte_counter;
+} ao_null_internal;
+
+
+static int ao_null_test(void)
+{
+ return 1; /* Null always works */
+}
+
+
+static ao_info *ao_null_driver_info(void)
+{
+ return &ao_null_info;
+}
+
+
+static int ao_null_device_init(ao_device *device)
+{
+ ao_null_internal *internal;
+
+ internal = (ao_null_internal *) malloc(sizeof(ao_null_internal));
+
+ if (internal == NULL)
+ return 0; /* Could not initialize device memory */
+
+ internal->byte_counter = 0;
+
+ device->internal = internal;
+ device->output_matrix_order = AO_OUTPUT_MATRIX_FIXED;
+
+ return 1; /* Memory alloc successful */
+}
+
+
+static int ao_null_set_option(ao_device *device, const char *key,
+ const char *value)
+{
+ /*ao_null_internal *internal = (ao_null_internal *) device->internal;*/
+ (void)value;
+ (void)key;
+ (void)device;
+
+ return 1;
+}
+
+
+
+static int ao_null_open(ao_device *device, ao_sample_format *format)
+{
+ /* Use whatever format the client requested */
+ device->driver_byte_format = device->client_byte_format;
+
+ if(!device->inter_matrix){
+ /* by default, we want inter == in */
+ if(format->matrix)
+ device->inter_matrix = _strdup(format->matrix);
+ }
+
+ return 1;
+}
+
+
+static int ao_null_play(ao_device *device, const char *output_samples,
+ uint_32 num_bytes)
+{
+ ao_null_internal *internal = (ao_null_internal *)device->internal;
+
+ internal->byte_counter += num_bytes;
+
+ return 1;
+}
+
+
+static int ao_null_close(ao_device *device)
+{
+ ao_null_internal *internal = (ao_null_internal *) device->internal;
+
+ adebug("%ld bytes sent to null device.\n", internal->byte_counter);
+
+ return 1;
+}
+
+
+static void ao_null_device_clear(ao_device *device)
+{
+ ao_null_internal *internal = (ao_null_internal *) device->internal;
+
+ free(internal);
+ device->internal=NULL;
+}
+
+
+ao_functions ao_null = {
+ ao_null_test,
+ ao_null_driver_info,
+ ao_null_device_init,
+ ao_null_set_option,
+ ao_null_open,
+ ao_null_play,
+ ao_null_close,
+ ao_null_device_clear
+};
diff --git a/libao/src/src/ao_raw.c b/libao/src/src/ao_raw.c
new file mode 100644
index 0000000..50b21be
--- /dev/null
+++ b/libao/src/src/ao_raw.c
@@ -0,0 +1,160 @@
+/*
+ *
+ * ao_raw.c
+ *
+ * Copyright (C) Stan Seibert - January 2001, July 2001
+ *
+ * This file is part of libao, a cross-platform audio output library. See
+ * README for a history of this source code.
+ *
+ * libao 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.
+ *
+ * libao 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 GNU Make; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ********************************************************************
+
+ last mod: $Id: ao_raw.c 17718 2010-12-06 20:09:29Z xiphmont $
+
+ ********************************************************************/
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <ao/ao.h>
+#include <ao/plugin.h>
+
+static char *ao_raw_options[] = {"byteorder","matrix","verbose","quiet","debug"};
+static ao_info ao_raw_info =
+{
+ AO_TYPE_FILE,
+ "RAW sample output",
+ "raw",
+ "Stan Seibert <indigo@aztec.asu.edu>",
+ "Writes raw audio samples to a file",
+ AO_FMT_NATIVE,
+ 0,
+ ao_raw_options,
+ sizeof(ao_raw_options)/sizeof(*ao_raw_options)
+};
+
+typedef struct ao_raw_internal
+{
+ int byte_order;
+} ao_raw_internal;
+
+
+static int ao_raw_test(void)
+{
+ return 1; /* Always works */
+}
+
+
+static ao_info *ao_raw_driver_info(void)
+{
+ return &ao_raw_info;
+}
+
+
+static int ao_raw_device_init(ao_device *device)
+{
+ ao_raw_internal *internal;
+
+ internal = (ao_raw_internal *) malloc(sizeof(ao_raw_internal));
+
+ if (internal == NULL)
+ return 0; /* Could not initialize device memory */
+
+ internal->byte_order = AO_FMT_NATIVE;
+
+ device->internal = internal;
+ device->output_matrix_order = AO_OUTPUT_MATRIX_FIXED;
+
+ return 1; /* Memory alloc successful */
+}
+
+static int ao_raw_set_option(ao_device *device, const char *key,
+ const char *value)
+{
+ ao_raw_internal *internal = (ao_raw_internal *)device->internal;
+
+ if (!strcmp(key, "byteorder")) {
+ if (!strcmp(value, "native"))
+ internal->byte_order = AO_FMT_NATIVE;
+ else if (!strcmp(value, "big"))
+ internal->byte_order = AO_FMT_BIG;
+ else if (!strcmp(value, "little"))
+ internal->byte_order = AO_FMT_LITTLE;
+ else
+ return 0; /* Bad option value */
+ }
+
+ return 1;
+}
+
+
+static int ao_raw_open(ao_device *device, ao_sample_format *format)
+{
+ ao_raw_internal *internal = (ao_raw_internal *)device->internal;
+
+ device->driver_byte_format = internal->byte_order;
+
+ //if(!device->inter_matrix){
+ ///* by default, inter == in */
+ //if(format->matrix)
+ // device->inter_matrix = strdup(format->matrix);
+ //}
+
+ return 1;
+}
+
+
+/*
+ * play the sample to the already opened file descriptor
+ */
+static int ao_raw_play(ao_device *device, const char *output_samples,
+ uint_32 num_bytes)
+{
+ if (fwrite(output_samples, sizeof(char), num_bytes,
+ device->file) < num_bytes)
+ return 0;
+ else
+ return 1;
+}
+
+
+static int ao_raw_close(ao_device *device)
+{
+ /* No closeout needed */
+ return 1;
+}
+
+
+static void ao_raw_device_clear(ao_device *device)
+{
+ ao_raw_internal *internal = (ao_raw_internal *) device->internal;
+
+ free(internal);
+ device->internal=NULL;
+}
+
+
+ao_functions ao_raw = {
+ ao_raw_test,
+ ao_raw_driver_info,
+ ao_raw_device_init,
+ ao_raw_set_option,
+ ao_raw_open,
+ ao_raw_play,
+ ao_raw_close,
+ ao_raw_device_clear
+};
diff --git a/libao/src/src/ao_wav.c b/libao/src/src/ao_wav.c
new file mode 100644
index 0000000..297a8ac
--- /dev/null
+++ b/libao/src/src/ao_wav.c
@@ -0,0 +1,291 @@
+/*
+ *
+ * ao_wav.c
+ *
+ * Original Copyright (C) Aaron Holtzman - May 1999
+ * Modifications Copyright (C) Stan Seibert - July 2000, July 2001
+ * Copyright (C) Monty - January 2010
+ *
+ * This file is part of libao, a cross-platform audio output library. See
+ * README for a history of this source code.
+ *
+ * libao 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.
+ *
+ * libao 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 GNU Make; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ********************************************************************
+
+ last mod: $Id: ao_wav.c 17718 2010-12-06 20:09:29Z xiphmont $
+
+ ********************************************************************/
+
+
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <signal.h>
+#include <ao/ao.h>
+
+#define WAVE_FORMAT_PCM 0x0001
+#define FORMAT_MULAW 0x0101
+#define IBM_FORMAT_ALAW 0x0102
+#define IBM_FORMAT_ADPCM 0x0103
+#define WAVE_FORMAT_EXTENSIBLE 0xfffe
+
+#define WAV_HEADER_LEN 68
+
+#define WRITE_U32(buf, x) *(buf) = (unsigned char)(x&0xff);\
+ *((buf)+1) = (unsigned char)((x>>8)&0xff);\
+ *((buf)+2) = (unsigned char)((x>>16)&0xff);\
+ *((buf)+3) = (unsigned char)((x>>24)&0xff);
+
+#define WRITE_U16(buf, x) *(buf) = (unsigned char)(x&0xff);\
+ *((buf)+1) = (unsigned char)((x>>8)&0xff);
+
+#define DEFAULT_SWAP_BUFFER_SIZE 2048
+
+struct riff_struct {
+ unsigned char id[4]; /* RIFF */
+ unsigned int len;
+ unsigned char wave_id[4]; /* WAVE */
+};
+
+
+struct chunk_struct
+{
+ unsigned char id[4];
+ unsigned int len;
+};
+
+struct common_struct
+{
+ unsigned short wFormatTag;
+ unsigned short wChannels;
+ unsigned int dwSamplesPerSec;
+ unsigned int dwAvgBytesPerSec;
+ unsigned short wBlockAlign;
+ unsigned short wBitsPerSample;
+ unsigned short cbSize;
+ unsigned short wValidBitsPerSample;
+ unsigned int dwChannelMask;
+ unsigned short subFormat;
+};
+
+struct wave_header
+{
+ struct riff_struct riff;
+ struct chunk_struct format;
+ struct common_struct common;
+ struct chunk_struct data;
+};
+
+
+static char *ao_wav_options[] = {"matrix","verbose","quiet","debug"};
+static ao_info ao_wav_info =
+{
+ AO_TYPE_FILE,
+ "WAV file output",
+ "wav",
+ "Aaron Holtzman <aholtzma@ess.engr.uvic.ca>",
+ "Sends output to a .wav file",
+ AO_FMT_LITTLE,
+ 0,
+ ao_wav_options,
+ sizeof(ao_wav_options)/sizeof(*ao_wav_options)
+};
+
+typedef struct ao_wav_internal
+{
+ struct wave_header wave;
+} ao_wav_internal;
+
+
+static int ao_wav_test(void)
+{
+ return 1; /* File driver always works */
+}
+
+
+static ao_info *ao_wav_driver_info(void)
+{
+ return &ao_wav_info;
+}
+
+
+static int ao_wav_device_init(ao_device *device)
+{
+ ao_wav_internal *internal;
+
+ internal = (ao_wav_internal *) malloc(sizeof(ao_wav_internal));
+
+ if (internal == NULL)
+ return 0; /* Could not initialize device memory */
+
+ memset(&(internal->wave), 0, sizeof(internal->wave));
+
+ device->internal = internal;
+ device->output_matrix = strdup("L,R,C,LFE,BL,BR,CL,CR,BC,SL,SR");
+ device->output_matrix_order = AO_OUTPUT_MATRIX_COLLAPSIBLE;
+
+ return 1; /* Memory alloc successful */
+}
+
+
+static int ao_wav_set_option(ao_device *device, const char *key,
+ const char *value)
+{
+ return 1; /* No options! */
+}
+
+static int ao_wav_open(ao_device *device, ao_sample_format *format)
+{
+ ao_wav_internal *internal = (ao_wav_internal *) device->internal;
+ unsigned char buf[WAV_HEADER_LEN];
+ int size = 0x7fffffff; /* Use a bogus size initially */
+
+ /* Store information */
+ internal->wave.common.wChannels = device->output_channels;
+ internal->wave.common.wBitsPerSample = ((format->bits+7)>>3)<<3;
+ internal->wave.common.wValidBitsPerSample = format->bits;
+ internal->wave.common.dwSamplesPerSec = format->rate;
+
+ memset(buf, 0, WAV_HEADER_LEN);
+
+ /* Fill out our wav-header with some information. */
+ strncpy(internal->wave.riff.id, "RIFF",4);
+ internal->wave.riff.len = size - 8;
+ strncpy(internal->wave.riff.wave_id, "WAVE",4);
+
+ strncpy(internal->wave.format.id, "fmt ",4);
+ internal->wave.format.len = 40;
+
+ internal->wave.common.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
+ internal->wave.common.dwAvgBytesPerSec =
+ internal->wave.common.wChannels *
+ internal->wave.common.dwSamplesPerSec *
+ (internal->wave.common.wBitsPerSample >> 3);
+
+ internal->wave.common.wBlockAlign =
+ internal->wave.common.wChannels *
+ (internal->wave.common.wBitsPerSample >> 3);
+ internal->wave.common.cbSize = 22;
+ internal->wave.common.subFormat = WAVE_FORMAT_PCM;
+ internal->wave.common.dwChannelMask=device->output_mask;
+
+ strncpy(internal->wave.data.id, "data",4);
+
+ internal->wave.data.len = size - WAV_HEADER_LEN;
+
+ strncpy(buf, internal->wave.riff.id, 4);
+ WRITE_U32(buf+4, internal->wave.riff.len);
+ strncpy(buf+8, internal->wave.riff.wave_id, 4);
+ strncpy(buf+12, internal->wave.format.id,4);
+ WRITE_U32(buf+16, internal->wave.format.len);
+ WRITE_U16(buf+20, internal->wave.common.wFormatTag);
+ WRITE_U16(buf+22, internal->wave.common.wChannels);
+ WRITE_U32(buf+24, internal->wave.common.dwSamplesPerSec);
+ WRITE_U32(buf+28, internal->wave.common.dwAvgBytesPerSec);
+ WRITE_U16(buf+32, internal->wave.common.wBlockAlign);
+ WRITE_U16(buf+34, internal->wave.common.wBitsPerSample);
+ WRITE_U16(buf+36, internal->wave.common.cbSize);
+ WRITE_U16(buf+38, internal->wave.common.wValidBitsPerSample);
+ WRITE_U32(buf+40, internal->wave.common.dwChannelMask);
+ WRITE_U16(buf+44, internal->wave.common.subFormat);
+ memcpy(buf+46,"\x00\x00\x00\x00\x10\x00\x80\x00\x00\xAA\x00\x38\x9B\x71",14);
+ strncpy(buf+60, internal->wave.data.id, 4);
+ WRITE_U32(buf+64, internal->wave.data.len);
+
+ if (fwrite(buf, sizeof(char), WAV_HEADER_LEN, device->file)
+ != WAV_HEADER_LEN) {
+ return 0; /* Could not write wav header */
+ }
+
+ device->driver_byte_format = AO_FMT_LITTLE;
+
+ return 1;
+}
+
+
+/*
+ * play the sample to the already opened file descriptor
+ */
+static int ao_wav_play(ao_device *device, const char *output_samples,
+ uint_32 num_bytes)
+{
+ if (fwrite(output_samples, sizeof(char), num_bytes,
+ device->file) < num_bytes)
+ return 0;
+ else
+ return 1;
+
+}
+
+static int ao_wav_close(ao_device *device)
+{
+ ao_wav_internal *internal = (ao_wav_internal *) device->internal;
+ unsigned char buf[4]; /* For holding length values */
+
+ long size;
+
+ /* Find how long our file is in total, including header */
+ size = ftell(device->file);
+
+ if (size < 0) {
+ return 0; /* Wav header corrupt */
+ }
+
+ /* Go back and set correct length info */
+
+ internal->wave.riff.len = size - 8;
+ internal->wave.data.len = size - WAV_HEADER_LEN;
+
+ /* Rewind to riff len and write it */
+ if (fseek(device->file, 4, SEEK_SET) < 0)
+ return 0; /* Wav header corrupt */
+
+ WRITE_U32(buf, internal->wave.riff.len);
+ if (fwrite(buf, sizeof(char), 4, device->file) < 4)
+ return 0; /* Wav header corrupt */
+
+
+ /* Rewind to data len and write it */
+ if (fseek(device->file, 64, SEEK_SET) < 0)
+ return 0; /* Wav header corrupt */
+
+ WRITE_U32(buf, internal->wave.data.len);
+ if (fwrite(buf, sizeof(char), 4, device->file) < 4)
+ return 0; /* Wav header corrupt */
+
+
+ return 1; /* Wav header correct */
+}
+
+static void ao_wav_device_clear(ao_device *device)
+{
+ ao_wav_internal *internal = (ao_wav_internal *) device->internal;
+
+ free(internal);
+ device->internal=NULL;
+}
+
+
+ao_functions ao_wav = {
+ ao_wav_test,
+ ao_wav_driver_info,
+ ao_wav_device_init,
+ ao_wav_set_option,
+ ao_wav_open,
+ ao_wav_play,
+ ao_wav_close,
+ ao_wav_device_clear
+};
diff --git a/libao/src/src/ao_wmm.c b/libao/src/src/ao_wmm.c
new file mode 100644
index 0000000..7cd05f1
--- /dev/null
+++ b/libao/src/src/ao_wmm.c
@@ -0,0 +1,645 @@
+/*
+ *
+ * ao_wmm.c
+ *
+ * Copyright (C) Benjamin Gerard - March 2007
+ *
+ * This file is part of libao, a cross-platform library. See
+ * README for a history of this source code.
+ *
+ * libao 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.
+ *
+ * libao 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 GNU Make; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ********************************************************************
+
+ last mod: $Id: ao_wmm.c 17629 2010-11-18 12:04:46Z xiphmont $
+
+ ********************************************************************/
+
+//#define PREPARE_EACH
+//#define _CRT_SECURE_NO_DEPRECATE
+
+#include <windows.h>
+#include <mmreg.h>
+#include <mmsystem.h>
+//#include <ks.h>
+//#include <ksmedia.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <stdarg.h>
+#include <stdio.h>
+
+//#ifndef KSDATAFORMAT_SUBTYPE_PCM
+//#define KSDATAFORMAT_SUBTYPE_PCM (GUID) {0x00000001,0x0000,0x0010,{0x80,0x00,0x00,0xaa,0x00,0x38,0x9b,0x71}}
+//#endif
+
+GUID KSDATAFORMAT_SUBTYPE_PCM = {0x00000001,0x0000,0x0010,{0x80,0x00,0x00,0xaa,0x00,0x38,0x9b,0x71}};
+
+
+#include "ao/ao.h"
+/* #include "ao/plugin.h" */
+
+#define GALLOC_WVHD_TYPE (GHND)
+#define GALLOC_DATA_TYPE (GHND)
+
+static const char * mmerror(MMRESULT mmrError)
+{
+ static char mmbuffer[1024];
+ int len;
+ sprintf(mmbuffer,"mm:%d ",(int)mmrError);
+ len = (int)strlen(mmbuffer);
+ waveOutGetErrorTextA(mmrError, mmbuffer+len, sizeof(mmbuffer)-len);
+ mmbuffer[sizeof(mmbuffer)-1] = 0;
+ return mmbuffer;
+}
+
+static char * ao_wmm_options[] = {"dev", "id", "matrix","verbose","quiet","debug"};
+static ao_info ao_wmm_info =
+ {
+ /* type */ AO_TYPE_LIVE,
+ /* name */ "WMM audio driver output ",
+ /* short-name */ "wmm",
+ /* author */ "Benjamin Gerard <benjihan@users.sourceforge.net>",
+ /* comment */ "Outputs audio to the Windows MultiMedia driver.",
+ /* prefered format */ AO_FMT_LITTLE,
+ /* priority */ 20,
+ /* options */ ao_wmm_options,
+ /* # of options */ sizeof(ao_wmm_options)/sizeof(*ao_wmm_options)
+ };
+
+typedef struct {
+ WAVEHDR wh; /* waveheader */
+ char * data; /* sample data ptr */
+ int idx; /* index of this header */
+ int count; /* current byte count */
+ int length; /* size of data */
+ int sent; /* set when header is sent to device */
+} myWH_t;
+
+typedef struct ao_wmm_internal {
+ UINT id; /* device id */
+ HWAVEOUT hwo; /* waveout handler */
+ WAVEOUTCAPSA caps; /* device caps */
+ WAVEFORMATEXTENSIBLE wavefmt; /* sample format */
+
+ int opened; /* device has been opened */
+ int prepared; /* waveheaders have been prepared */
+ int blocks; /* number of blocks (wave headers) */
+ int splPerBlock; /* sample per blocks. */
+ int msPerBlock; /* millisecond per block (approx.) */
+
+ void * bigbuffer; /* Allocated buffer for waveheaders and sound data */
+ myWH_t * wh; /* Pointer to waveheaders in bigbuffer */
+ BYTE * spl; /* Pointer to sound data in bigbuffer */
+
+ int sent_blocks; /* Number of waveheader sent (not ack). */
+ int full_blocks; /* Number of waveheader full (ready to send). */
+ int widx; /* Index to the block being currently filled. */
+ int ridx; /* Index to the block being sent. */
+
+} ao_wmm_internal;
+
+int ao_wmm_test(void)
+{
+ return 1; /* This plugin works in default mode */
+}
+
+ao_info *ao_wmm_driver_info(void)
+{
+ return &ao_wmm_info;
+}
+
+int ao_wmm_set_option(ao_device *device,
+ const char *key, const char *value)
+{
+ ao_wmm_internal *internal = (ao_wmm_internal *) device->internal;
+ int res = 0;
+
+ if (!strcmp(key, "dev")) {
+ if (!strcmp(value,"default")) {
+ key = "id";
+ value = "0";
+ } else {
+ WAVEOUTCAPSA caps;
+ int i, max = waveOutGetNumDevs();
+
+ adebug("searching for device %s among %d\n", value, max);
+ for (i=0; i<max; ++i) {
+ MMRESULT mmres = waveOutGetDevCapsA(i, &caps, sizeof(caps));
+ if (mmres == MMSYSERR_NOERROR) {
+ res = !strcmp(value, caps.szPname);
+ adebug("checking id=%d, name='%s', ver=%d.%d => [%s]\n",
+ i,caps.szPname,caps.vDriverVersion>>8,caps.vDriverVersion&255,res?"YES":"no");
+ if (res) {
+ internal->id = i;
+ internal->caps = caps;
+ break;
+ }
+ } else {
+ aerror("waveOutGetDevCaps(%d) => %s",i,mmerror(mmres));
+ }
+ }
+ goto finish;
+ }
+ }
+
+ if (!strcmp(key,"id")) {
+ MMRESULT mmres;
+ WAVEOUTCAPSA caps;
+
+ int id = strtol(value,0,0);
+ int max = waveOutGetNumDevs();
+
+ if (id >= 0 && id <= max) {
+ if (id-- == 0) {
+ adebug("set default wavemapper\n");
+ id = WAVE_MAPPER;
+ }
+ mmres = waveOutGetDevCapsA(id, &caps, sizeof(caps));
+
+ if (mmres == MMSYSERR_NOERROR) {
+ res = 1;
+ adebug("checking id=%d, name='%s', ver=%d.%d => [YES]\n",
+ id,caps.szPname,caps.vDriverVersion>>8,caps.vDriverVersion&255);
+ internal->id = id;
+ internal->caps = caps;
+ } else {
+ aerror("waveOutGetDevCaps(%d) => %s",id,mmerror(mmres));
+ }
+ }
+ }
+
+ finish:
+ return res;
+}
+
+
+int ao_wmm_device_init(ao_device *device)
+{
+ ao_wmm_internal *internal;
+ int res;
+
+ internal = (ao_wmm_internal *) malloc(sizeof(ao_wmm_internal));
+ device->internal = internal;
+ if (internal != NULL) {
+ memset(internal,0,sizeof(ao_wmm_internal));
+ internal->id = WAVE_MAPPER;
+ internal->blocks = 32;
+ internal->splPerBlock = 512;
+ /* set default device */
+ ao_wmm_set_option(device,"id","0");
+ }
+
+ res = internal != NULL;
+
+ device->output_matrix = _strdup("L,R,C,LFE,BL,BR,CL,CR,BC,SL,SR");
+ device->output_matrix_order = AO_OUTPUT_MATRIX_COLLAPSIBLE;
+
+ return res;
+}
+
+static int _ao_open_device(ao_device *device)
+{
+ ao_wmm_internal *internal = (ao_wmm_internal *) device->internal;
+ int res;
+ MMRESULT mmres;
+
+ mmres =
+ waveOutOpen(&internal->hwo,
+ internal->id,
+ &internal->wavefmt.Format,
+ (DWORD_PTR)0/* waveOutProc */,
+ (DWORD_PTR)device,
+ CALLBACK_NULL/* |WAVE_FORMAT_DIRECT */|WAVE_ALLOWSYNC);
+
+ if(mmres == MMSYSERR_NOERROR){
+ adebug("waveOutOpen id=%d, channels=%d, bits=%d, rate %d => SUCCESS\n",
+ internal->id,
+ internal->wavefmt.Format.nChannels,
+ (int)internal->wavefmt.Format.wBitsPerSample,
+ (int)internal->wavefmt.Format.nSamplesPerSec);
+ }else{
+ aerror("waveOutOpen id=%d, channels=%d, bits=%d, rate %d => FAILED\n",
+ internal->id,
+ internal->wavefmt.Format.nChannels,
+ (int)internal->wavefmt.Format.wBitsPerSample,
+ (int)internal->wavefmt.Format.nSamplesPerSec);
+ }
+
+ if (mmres == MMSYSERR_NOERROR) {
+ UINT id;
+ if (MMSYSERR_NOERROR == waveOutGetID(internal->hwo,&id)) {
+ internal->id = id;
+ }
+ }
+
+ res = (mmres == MMSYSERR_NOERROR);
+ return res;
+}
+
+static int _ao_close_device(ao_device *device)
+{
+ ao_wmm_internal * internal = (ao_wmm_internal *) device->internal;
+ int res;
+ MMRESULT mmres;
+
+ mmres = waveOutClose(internal->hwo);
+ if(mmres == MMSYSERR_NOERROR) {
+ adebug("waveOutClose(%d)\n => %s\n", internal->id, mmerror(mmres));
+ }else{
+ aerror("waveOutClose(%d)\n => %s\n", internal->id, mmerror(mmres));
+ }
+ res = (mmres == MMSYSERR_NOERROR);
+
+ return res;
+}
+
+static int _ao_alloc_wave_headers(ao_device *device)
+{
+ ao_wmm_internal *internal = (ao_wmm_internal *) device->internal;
+ int bytesPerBlock = internal->wavefmt.Format.nBlockAlign * internal->splPerBlock;
+ /* int bytes = internal->blocks * (sizeof(WAVEHDR) + bytesPerBlock); */
+ int bytes = internal->blocks * (sizeof(*internal->wh) + bytesPerBlock);
+ int res;
+ MMRESULT mmres;
+
+ adebug("_ao_alloc_wave_headers blocks=%d, bytes/blocks=%d, total=%d\n",
+ internal->blocks,bytesPerBlock,bytes);
+
+ internal->bigbuffer = malloc(bytes);
+ if (internal->bigbuffer != NULL) {
+ int i;
+ BYTE * b;
+
+ memset(internal->bigbuffer,0,bytes);
+ internal->wh = internal->bigbuffer;
+ internal->spl = (LPBYTE) (internal->wh+internal->blocks);
+ for (i=0, b=internal->spl; i<internal->blocks; ++i, b+=bytesPerBlock) {
+ internal->wh[i].data = (char*)b;
+ internal->wh[i].wh.lpData = internal->wh[i].data;
+ internal->wh[i].length = bytesPerBlock;
+ internal->wh[i].wh.dwBufferLength = internal->wh[i].length;
+ internal->wh[i].wh.dwUser = (DWORD_PTR)device;
+ mmres = waveOutPrepareHeader(internal->hwo,
+ &internal->wh[i].wh,sizeof(WAVEHDR));
+ if (MMSYSERR_NOERROR != mmres) {
+ aerror("waveOutPrepareHeader(%d) => %s\n",i, mmerror(mmres));
+ break;
+ }
+ }
+ if (i<internal->blocks) {
+ while (--i >= 0) {
+ waveOutUnprepareHeader(internal->hwo,
+ &internal->wh[i].wh,sizeof(WAVEHDR));
+ }
+ free(internal->bigbuffer);
+ internal->wh = 0;
+ internal->spl = 0;
+ internal->bigbuffer = 0;
+ } else {
+ /* all ok ! */
+ }
+ } else {
+ adebug("malloc() => FAILED\n");
+ }
+
+ res = (internal->bigbuffer != NULL);
+ if(!res){
+ aerror("_ao_alloc_wave_headers() => FAILED\n");
+ }else{
+ adebug("_ao_alloc_wave_headers() => success\n");
+ }
+ return res;
+}
+
+static int _ao_get_free_block(ao_device * device);
+static int _ao_wait_wave_headers(ao_device *device, int wait_all)
+{
+ ao_wmm_internal *internal = (ao_wmm_internal *) device->internal;
+ int res = 1;
+
+ adebug("wait for %d blocks (%swait all)\n",
+ internal->sent_blocks,wait_all?"":"not ");
+
+ while (internal->sent_blocks > 0) {
+ int n;
+ _ao_get_free_block(device);
+ n = internal->sent_blocks;
+ if (n > 0) {
+ unsigned int ms = (internal->msPerBlock>>1)+1;
+ if (wait_all) ms *= n;
+ adebug("sleep for %ums wait on %d blocks\n",ms, internal->sent_blocks);
+ Sleep(ms);
+ }
+ }
+
+ res &= !internal->sent_blocks;
+ if(!res){
+ aerror("_ao_wait_wave_headers => FAILED\n");
+ }else{
+ adebug("_ao_wait_wave_headers => success\n");
+ }
+ return res;
+}
+
+static int _ao_free_wave_headers(ao_device *device)
+{
+ ao_wmm_internal *internal = (ao_wmm_internal *) device->internal;
+ MMRESULT mmres;
+ int res = 1;
+
+ if (internal->wh) {
+ int i;
+
+ /* Reset so we dont need to wait ... Just a satefy net
+ * since _ao_wait_wave_headers() has been called once before.
+ */
+ mmres = waveOutReset(internal->hwo);
+ adebug("waveOutReset(%d) => %s\n", internal->id, mmerror(mmres));
+ /* Wait again to be sure reseted waveheaders has been released. */
+ _ao_wait_wave_headers(device,0);
+
+ for (i=internal->blocks; --i>=0; ) {
+ mmres = waveOutUnprepareHeader(internal->hwo,
+ &internal->wh[i].wh,sizeof(WAVEHDR));
+ if (mmres != MMSYSERR_NOERROR)
+ aerror("waveOutUnprepareHeader(%d) => %s\n", i, mmerror(mmres));
+
+ res &= mmres == MMSYSERR_NOERROR;
+ }
+ internal->wh = 0;
+ internal->spl = 0;
+ }
+
+ if(!res){
+ aerror("_ao_alloc_wave_headers() => FAILED\n");
+ }else{
+ adebug("_ao_alloc_wave_headers() => success\n");
+ }
+ return res;
+}
+
+
+/*
+ * open the audio device for writing to
+ */
+int ao_wmm_open(ao_device * device, ao_sample_format * format)
+{
+ ao_wmm_internal *internal = (ao_wmm_internal *) device->internal;
+ int res = 0;
+ WAVEFORMATEXTENSIBLE wavefmt;
+
+ adebug("open() channels=%d, bits=%d, rate=%d, format %d(%s)\n",
+ device->output_channels,format->bits,format->rate,format->byte_format,
+ format->byte_format==AO_FMT_LITTLE
+ ?"little"
+ :(format->byte_format==AO_FMT_NATIVE
+ ?"native"
+ :(format->byte_format==AO_FMT_BIG?"big":"unknown")));
+
+ if(internal->opened) {
+ aerror("open() => already opened\n");
+ goto error_no_close;
+ }
+
+ /* Force LITTLE as specified by WIN32 API */
+ format->byte_format = AO_FMT_LITTLE;
+ device->driver_byte_format = AO_FMT_LITTLE;
+
+ /* $$$ WMM 8 bit samples are unsigned... Not sure for ao ... */
+ /* Yes, ao 8 bit PCM is unsigned -- Monty */
+
+ /* Make sample format */
+ memset(&wavefmt,0,sizeof(wavefmt));
+ wavefmt.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
+ wavefmt.Format.nChannels = device->output_channels;
+ wavefmt.Format.wBitsPerSample = (((format->bits+7)>>3)<<3);
+ wavefmt.Format.nSamplesPerSec = format->rate;
+ wavefmt.Format.nBlockAlign = (wavefmt.Format.wBitsPerSample>>3)*wavefmt.Format.nChannels;
+ wavefmt.Format.nAvgBytesPerSec = wavefmt.Format.nSamplesPerSec*wavefmt.Format.nBlockAlign;
+ wavefmt.Format.cbSize = 22;
+ wavefmt.Samples.wValidBitsPerSample = format->bits;
+ wavefmt.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
+ wavefmt.dwChannelMask = device->output_mask;
+
+ internal->wavefmt = wavefmt;
+
+ /* $$$ later this should be optionnal parms */
+ internal->blocks = 64;
+ internal->splPerBlock = 512;
+ internal->msPerBlock =
+ (internal->splPerBlock * 1000 + format->rate - 1) / format->rate;
+
+ /* Open device */
+ if(!_ao_open_device(device))
+ goto error;
+ internal->opened = 1;
+
+ /* Allocate buffers */
+ if (!_ao_alloc_wave_headers(device))
+ goto error;
+ internal->prepared = 1;
+
+ res = 1;
+ error:
+ if (!res) {
+ if (internal->prepared) {
+ _ao_free_wave_headers(device);
+ internal->prepared = 0;
+ }
+ if (internal->opened) {
+ _ao_close_device(device);
+ internal->opened = 0;
+ }
+ }
+
+ error_no_close:
+ if(res){
+ adebug("open() => success\n");
+ }else{
+ aerror("open() => FAILED\n");
+ }
+ return res;
+}
+
+
+
+/* Send a block to audio hardware */
+static int _ao_send_block(ao_device *device, const int idx)
+{
+ ao_wmm_internal * internal = (ao_wmm_internal *) device->internal;
+ MMRESULT mmres;
+
+ /* Satanity checks */
+ if (internal->wh[idx].sent) {
+ adebug("block %d marked SENT\n",idx);
+ return 0;
+ }
+ if (!!(internal->wh[idx].wh.dwFlags & WHDR_DONE)) {
+ adebug("block %d marked DONE\n",idx);
+ return 0;
+ }
+
+ /* count <= 0, just pretend it's been sent */
+ if (internal->wh[idx].count <= 0) {
+ internal->wh[idx].sent = 2; /* set with 2 so we can track these special cases */
+ internal->wh[idx].wh.dwFlags |= WHDR_DONE;
+ ++internal->sent_blocks;
+ return 1;
+ }
+
+ internal->wh[idx].wh.dwBufferLength = internal->wh[idx].count;
+ internal->wh[idx].count = 0;
+ mmres = waveOutWrite(internal->hwo,
+ &internal->wh[idx].wh, sizeof(WAVEHDR));
+ internal->wh[idx].sent = (mmres == MMSYSERR_NOERROR);
+ /*&& !(internal->wh[idx].wh.dwFlags & WHDR_DONE);*/
+ internal->sent_blocks += internal->wh[idx].sent;
+ if (mmres != MMSYSERR_NOERROR) {
+ adebug("waveOutWrite(%d) => %s\n",idx,mmerror(mmres));
+ }
+ return mmres == MMSYSERR_NOERROR;
+}
+
+/* Get idx of next free block. */
+static int _ao_get_free_block(ao_device * device)
+{
+ ao_wmm_internal * internal = (ao_wmm_internal *) device->internal;
+ const int idx = internal->widx;
+ int ridx = internal->ridx;
+
+ while (internal->wh[ridx].sent && !!(internal->wh[ridx].wh.dwFlags & WHDR_DONE)) {
+ /* block successfully sent to hardware, release it */
+ /*debug("_ao_get_free_block: release block %d\n",ridx);*/
+ internal->wh[ridx].sent = 0;
+ internal->wh[ridx].wh.dwFlags &= ~WHDR_DONE;
+
+ --internal->full_blocks;
+ if (internal->full_blocks<0) {
+ adebug("internal error with full block counter\n");
+ internal->full_blocks = 0;
+ }
+
+ --internal->sent_blocks;
+ if (internal->sent_blocks<0) {
+ adebug("internal error with sent block counter\n");
+ internal->sent_blocks = 0;
+ }
+ if (++ridx >= internal->blocks) ridx = 0;
+ }
+ internal->ridx = ridx;
+
+ return internal->wh[idx].sent
+ ? -1
+ : idx;
+}
+
+/*
+ * play the sample to the already opened file descriptor
+ */
+int ao_wmm_play(ao_device *device,
+ const char *output_samples, uint_32 num_bytes)
+{
+ int ret = 1;
+ ao_wmm_internal *internal = (ao_wmm_internal *) device->internal;
+
+ while(ret && num_bytes > 0) {
+ int n;
+ const int idx = _ao_get_free_block(device);
+
+ if (idx == -1) {
+ Sleep(internal->msPerBlock);
+ continue;
+ }
+
+ /* Get free bytes in the block */
+ n = internal->wh[idx].wh.dwBufferLength
+ - internal->wh[idx].count;
+
+ /* Get amount to copy */
+ if (n > (int)num_bytes) {
+ n = num_bytes;
+ }
+
+ /* Do copy */
+ CopyMemory((char*)internal->wh[idx].wh.lpData
+ + internal->wh[idx].count,
+ output_samples, n);
+
+ /* Updates pointers and counters */
+ output_samples += n;
+ num_bytes -= n;
+ internal->wh[idx].count += n;
+
+ /* Is this block full ? */
+ if (internal->wh[idx].count
+ == internal->wh[idx].wh.dwBufferLength) {
+ ++internal->full_blocks;
+ if (++internal->widx == internal->blocks) {
+ internal->widx = 0;
+ }
+ ret = _ao_send_block(device,idx);
+ }
+ }
+
+ adebug("ao_wmm_play => %d rem => [%s]\n",num_bytes,ret?"success":"error");
+ return ret;
+
+}
+
+int ao_wmm_close(ao_device *device)
+{
+ ao_wmm_internal *internal = (ao_wmm_internal *) device->internal;
+ int ret = 0;
+
+ if (internal->opened && internal->prepared) {
+ _ao_wait_wave_headers(device, 1);
+ }
+
+ if (internal->prepared) {
+ ret = _ao_free_wave_headers(device);
+ internal->prepared = 0;
+ }
+
+ if (internal->opened) {
+ ret = _ao_close_device(device);
+ internal->opened = 0;
+ }
+
+ return ret;
+}
+
+void ao_wmm_device_clear(ao_device *device)
+{
+ ao_wmm_internal *internal = (ao_wmm_internal *) device->internal;
+
+ if (internal->bigbuffer) {
+ free(internal->bigbuffer); internal->bigbuffer = NULL;
+ }
+ free(internal);
+ device->internal=NULL;
+}
+
+ao_functions ao_wmm = {
+ ao_wmm_test,
+ ao_wmm_driver_info,
+ ao_wmm_device_init,
+ ao_wmm_set_option,
+ ao_wmm_open,
+ ao_wmm_play,
+ ao_wmm_close,
+ ao_wmm_device_clear
+};
diff --git a/libao/src/src/audio_out.c b/libao/src/src/audio_out.c
new file mode 100644
index 0000000..f83199d
--- /dev/null
+++ b/libao/src/src/audio_out.c
@@ -0,0 +1,1514 @@
+/*
+ *
+ * audio_out.c
+ *
+ * Original Copyright (C) Aaron Holtzman - May 1999
+ * Modifications Copyright (C) Stan Seibert - July 2000
+ *
+ * This file is part of libao, a cross-platform audio output library. See
+ * README for a history of this source code.
+ *
+ * libao 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.
+ *
+ * libao 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 GNU Make; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ********************************************************************
+
+ last mod: $Id: audio_out.c 17008 2010-03-24 03:12:16Z xiphmont $
+
+ ********************************************************************/
+
+#define STRIP_PLUGINS
+
+#define HAVE_WMM
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <limits.h>
+#ifndef STRIP_PLUGINS
+#if defined HAVE_DLFCN_H && defined HAVE_DLOPEN
+# include <dlfcn.h>
+#else
+static void *dlopen(const char *filename, int flag) {return 0;}
+static char *dlerror(void) { return "dlopen: unsupported"; }
+static void *dlsym(void *handle, const char *symbol) { return 0; }
+static int dlclose(void *handle) { return 0; }
+#undef DLOPEN_FLAG
+#define DLOPEN_FLAG 0
+#endif
+#endif
+#include <sys/types.h>
+#include <sys/stat.h>
+#ifndef _MSC_VER
+# include <unistd.h>
+#endif
+//#include <dirent.h>
+
+#include "ao/ao.h"
+#include "ao/ao_private.h"
+
+/* These should have been set by the Makefile */
+#ifndef AO_PLUGIN_PATH
+#define AO_PLUGIN_PATH "/usr/local/lib/ao"
+#endif
+#ifndef SHARED_LIB_EXT
+#define SHARED_LIB_EXT ".so"
+#endif
+
+/* --- Other constants --- */
+#define DEF_SWAP_BUF_SIZE 1024
+
+/* --- Driver Table --- */
+
+typedef struct driver_list {
+ ao_functions *functions;
+ void *handle;
+ struct driver_list *next;
+} driver_list;
+
+
+extern ao_functions ao_null;
+//extern ao_functions ao_wav;
+//extern ao_functions ao_raw;
+//extern ao_functions ao_au;
+#ifdef HAVE_SYS_AUDIO_H
+extern ao_functions ao_aixs;
+#endif
+#ifdef HAVE_WMM
+extern ao_functions ao_wmm;
+#endif
+static ao_functions *static_drivers[] = {
+ &ao_null, /* Must have at least one static driver! */
+ //&ao_wav,
+ //&ao_raw,
+ //&ao_au,
+#ifdef HAVE_SYS_AUDIO_H
+ &ao_aixs,
+#endif
+#ifdef HAVE_WMM
+ &ao_wmm,
+#endif
+
+ NULL /* End of list */
+};
+
+static driver_list *driver_head = NULL;
+static ao_config config = {
+ NULL /* default_driver */
+};
+
+static ao_info **info_table = NULL;
+static int driver_count = 0;
+
+/* uses the device messaging and option infrastructure */
+static ao_device *ao_global_dummy;
+static ao_device ao_global_dummy_storage;
+static ao_option *ao_global_options=NULL;
+
+/* ---------- Helper functions ---------- */
+
+/* Clear out all of the library configuration options and set them to
+ defaults. The defaults should match the initializer above. */
+static void _clear_config()
+{
+ memset(ao_global_dummy,0,sizeof(*ao_global_dummy));
+ ao_global_dummy = NULL;
+ ao_free_options(ao_global_options);
+ ao_global_options = NULL;
+
+ free(config.default_driver);
+ config.default_driver = NULL;
+}
+
+
+#ifndef STRIP_PLUGINS
+/* Load a plugin from disk and put the function table into a driver_list
+ struct. */
+static driver_list *_get_plugin(char *plugin_file)
+{
+ ao_device *device = ao_global_dummy;
+ driver_list *dt;
+ void *handle;
+ char *prompt="";
+
+ handle = dlopen(plugin_file, DLOPEN_FLAG /* See ao_private.h */);
+
+ if (handle) {
+ prompt="calloc() failed";
+ dt = (driver_list *)calloc(1,sizeof(driver_list));
+ if (!dt) return NULL;
+
+ dt->handle = handle;
+
+ dt->functions = (ao_functions *)calloc(1,sizeof(ao_functions));
+ if (!(dt->functions)) {
+ free(dt);
+ return NULL;
+ }
+
+ prompt="ao_plugin_test() missing";
+ dt->functions->test = dlsym(dt->handle, "ao_plugin_test");
+ if (!(dt->functions->test)) goto failed;
+
+ prompt="ao_plugin_driver_info() missing";
+ dt->functions->driver_info =
+ dlsym(dt->handle, "ao_plugin_driver_info");
+ if (!(dt->functions->driver_info)) goto failed;
+
+ prompt="ao_plugin_device_list() missing";
+ dt->functions->device_init =
+ dlsym(dt->handle, "ao_plugin_device_init");
+ if (!(dt->functions->device_init )) goto failed;
+
+ prompt="ao_plugin_set_option() missing";
+ dt->functions->set_option =
+ dlsym(dt->handle, "ao_plugin_set_option");
+ if (!(dt->functions->set_option)) goto failed;
+
+ prompt="ao_plugin_open() missing";
+ dt->functions->open = dlsym(dt->handle, "ao_plugin_open");
+ if (!(dt->functions->open)) goto failed;
+
+ prompt="ao_plugin_play() missing";
+ dt->functions->play = dlsym(dt->handle, "ao_plugin_play");
+ if (!(dt->functions->play)) goto failed;
+
+ prompt="ao_plugin_close() missing";
+ dt->functions->close = dlsym(dt->handle, "ao_plugin_close");
+ if (!(dt->functions->close)) goto failed;
+
+ prompt="ao_plugin_clear() missing";
+ dt->functions->device_clear =
+ dlsym(dt->handle, "ao_plugin_device_clear");
+ if (!(dt->functions->device_clear)) goto failed;
+
+
+ } else {
+ aerror("Failed to load plugin %s => dlopen() failed\n",plugin_file);
+ return NULL;
+ }
+
+ adebug("Loaded driver %s\n",dt->functions->driver_info()->short_name);
+ return dt;
+
+ failed:
+ aerror("Failed to load plugin %s => %s\n",plugin_file,prompt);
+ free(dt->functions);
+ free(dt);
+ return NULL;
+}
+#endif
+
+
+/* If *name is a valid driver name, return its driver number.
+ Otherwise, test all of available live drivers until one works. */
+static int _find_default_driver_id (const char *name)
+{
+ int def_id;
+ int id;
+ ao_info *info;
+ driver_list *dl = driver_head;
+ ao_device *device = ao_global_dummy;
+
+ adebug("Testing drivers to find playback default...\n");
+ if ( name == NULL || (def_id = ao_driver_id(name)) < 0 ) {
+ /* No default specified. Find one among available drivers. */
+ def_id = -1;
+
+ id = 0;
+ while (dl != NULL) {
+
+ info = dl->functions->driver_info();
+ adebug("...testing %s\n",info->short_name);
+ if ( info->type == AO_TYPE_LIVE &&
+ info->priority > 0 && /* Skip static drivers */
+ dl->functions->test() ) {
+ def_id = id; /* Found a usable driver */
+ adebug("OK, using driver %s\n",info->short_name);
+ break;
+ }
+
+ dl = dl->next;
+ id++;
+ }
+ }
+
+ return def_id;
+}
+
+
+/* Convert the static drivers table into a linked list of drivers. */
+static driver_list* _load_static_drivers(driver_list **end)
+{
+ ao_device *device = ao_global_dummy;
+ driver_list *head;
+ driver_list *driver;
+ int i;
+
+ /* insert first driver */
+ head = driver = calloc(1,sizeof(driver_list));
+ if (driver != NULL) {
+ driver->functions = static_drivers[0];
+ driver->handle = NULL;
+ driver->next = NULL;
+ adebug("Loaded driver %s (built-in)\n",driver->functions->driver_info()->short_name);
+
+ i = 1;
+ while (static_drivers[i] != NULL) {
+ driver->next = calloc(1,sizeof(driver_list));
+ if (driver->next == NULL)
+ break;
+
+ driver->next->functions = static_drivers[i];
+ driver->next->handle = NULL;
+ driver->next->next = NULL;
+
+ driver = driver->next;
+ adebug("Loaded driver %s (built-in)\n",driver->functions->driver_info()->short_name);
+ i++;
+ }
+ }
+
+ if (end != NULL)
+ *end = driver;
+
+ return head;
+}
+
+
+/* Load the dynamic drivers from disk and append them to end of the
+ driver list. end points the driver_list node to append to. */
+static void _append_dynamic_drivers(driver_list *end)
+{
+#ifdef HAVE_DLOPEN
+ struct dirent *plugin_dirent;
+ char *ext;
+ struct stat statbuf;
+ DIR *plugindir;
+ driver_list *plugin;
+ driver_list *driver = end;
+ ao_device *device = ao_global_dummy;
+
+ /* now insert any plugins we find */
+ plugindir = opendir(AO_PLUGIN_PATH);
+ adebug("Loading driver plugins from %s...\n",AO_PLUGIN_PATH);
+ if (plugindir != NULL) {
+ while ((plugin_dirent = readdir(plugindir)) != NULL) {
+ char fullpath[strlen(AO_PLUGIN_PATH) + 1 + strlen(plugin_dirent->d_name) + 1];
+ snprintf(fullpath, sizeof(fullpath), "%s/%s",
+ AO_PLUGIN_PATH, plugin_dirent->d_name);
+ if (!stat(fullpath, &statbuf) &&
+ S_ISREG(statbuf.st_mode) &&
+ (ext = strrchr(plugin_dirent->d_name, '.')) != NULL) {
+ if (strcmp(ext, SHARED_LIB_EXT) == 0) {
+ plugin = _get_plugin(fullpath);
+ if (plugin) {
+ driver->next = plugin;
+ plugin->next = NULL;
+ driver = driver->next;
+ }
+ }
+ }
+ }
+
+ closedir(plugindir);
+ }
+#endif
+}
+
+
+/* Compare two drivers based on priority
+ Used as compar function for qsort() in _make_info_table() */
+static int _compar_driver_priority (const driver_list **a,
+ const driver_list **b)
+{
+ return memcmp(&((*b)->functions->driver_info()->priority),
+ &((*a)->functions->driver_info()->priority),
+ sizeof(int));
+}
+
+
+/* Make a table of driver info structures for ao_driver_info_list(). */
+static ao_info ** _make_info_table (driver_list **head, int *driver_count)
+{
+ driver_list *list;
+ int i;
+ ao_info **table;
+ driver_list **drivers_table;
+
+ *driver_count = 0;
+
+ /* Count drivers */
+ list = *head;
+ i = 0;
+ while (list != NULL) {
+ i++;
+ list = list->next;
+ }
+
+
+ /* Sort driver_list */
+ drivers_table = (driver_list **) calloc(i, sizeof(driver_list *));
+ if (drivers_table == NULL)
+ return (ao_info **) NULL;
+ list = *head;
+ *driver_count = i;
+ for (i = 0; i < *driver_count; i++, list = list->next)
+ drivers_table[i] = list;
+ qsort(drivers_table, i, sizeof(driver_list *),
+ (int(*)(const void *, const void *))
+ _compar_driver_priority);
+ *head = drivers_table[0];
+ for (i = 1; i < *driver_count; i++)
+ drivers_table[i-1]->next = drivers_table[i];
+ drivers_table[i-1]->next = NULL;
+
+
+ /* Alloc table */
+ table = (ao_info **) calloc(i, sizeof(ao_info *));
+ if (table != NULL) {
+ for (i = 0; i < *driver_count; i++)
+ table[i] = drivers_table[i]->functions->driver_info();
+ }
+
+ free(drivers_table);
+
+ return table;
+}
+
+
+/* Return the driver struct corresponding to particular driver id
+ number. */
+static driver_list *_get_driver(int driver_id) {
+ int i = 0;
+ driver_list *driver = driver_head;
+
+ if (driver_id < 0) return NULL;
+
+ while (driver && (i < driver_id)) {
+ i++;
+ driver = driver->next;
+ }
+
+ if (i == driver_id)
+ return driver;
+
+ return NULL;
+}
+
+
+#ifndef STRIP_PLUGINS
+/* Check if driver_id is a valid id number */
+static int _check_driver_id(int driver_id)
+{
+ int i = 0;
+ driver_list *driver = driver_head;
+
+ if (driver_id < 0) return 0;
+
+ while (driver && (i <= driver_id)) {
+ driver = driver->next;
+ i++;
+ }
+
+ if (i == (driver_id + 1))
+ return 1;
+
+ return 0;
+}
+#endif
+
+
+/* helper function to convert a byte_format of AO_FMT_NATIVE to the
+ actual byte format of the machine, otherwise just return
+ byte_format */
+static int _real_byte_format(int byte_format)
+{
+ if (byte_format == AO_FMT_NATIVE) {
+ if (ao_is_big_endian())
+ return AO_FMT_BIG;
+ else
+ return AO_FMT_LITTLE;
+ } else
+ return byte_format;
+}
+
+
+/* Create a new ao_device structure and populate it with data */
+static ao_device* _create_device(int driver_id, driver_list *driver,
+ ao_sample_format *format, FILE *file)
+{
+ ao_device *device;
+
+ device = calloc(1,sizeof(ao_device));
+
+ if (device != NULL) {
+ device->type = driver->functions->driver_info()->type;
+ device->driver_id = driver_id;
+ device->funcs = driver->functions;
+ device->file = file;
+ device->machine_byte_format =
+ ao_is_big_endian() ? AO_FMT_BIG : AO_FMT_LITTLE;
+ device->client_byte_format =
+ _real_byte_format(format->byte_format);
+ device->swap_buffer = NULL;
+ device->swap_buffer_size = 0;
+ device->internal = NULL;
+ device->output_channels = format->channels;
+ device->inter_permute = NULL;
+ device->output_matrix = NULL;
+ }
+
+ return device;
+}
+
+
+/* Expand the swap buffer in this device if it is smaller than
+ min_size. */
+static int _realloc_swap_buffer(ao_device *device, int min_size)
+{
+ void *temp;
+
+ if (min_size > device->swap_buffer_size) {
+ temp = realloc(device->swap_buffer, min_size);
+ if (temp != NULL) {
+ device->swap_buffer = temp;
+ device->swap_buffer_size = min_size;
+ return 1; /* Success, realloc worked */
+ } else
+ return 0; /* Fail to realloc */
+ } else
+ return 1; /* Success, no need to realloc */
+}
+
+
+static void _buffer_zero(char *target,int och,int bytewidth,int ochannels,int bytes){
+ int i = och*bytewidth;
+ int stride = bytewidth*ochannels;
+ switch(bytewidth){
+ case 1:
+ while(i<bytes){
+ ((unsigned char *)target)[i] = 128; /* 8 bit PCM is unsigned in libao */
+ i+=stride;
+ }
+ break;
+ case 2:
+ while(i<bytes){
+ target[i] = 0;
+ target[i+1] = 0;
+ i+=stride;
+ }
+ break;
+ case 3:
+ while(i<bytes){
+ target[i] = 0;
+ target[i+1] = 0;
+ target[i+2] = 0;
+ i+=stride;
+ }
+ break;
+ case 4:
+ while(i<bytes){
+ target[i] = 0;
+ target[i+1] = 0;
+ target[i+2] = 0;
+ target[i+3] = 0;
+ i+=stride;
+ }
+ break;
+ }
+}
+
+static void _buffer_permute_swap(char *target,int och,int bytewidth,int ochannels,int bytes,
+ char *source,int ich, int ichannels){
+ int o = och*bytewidth;
+ int i = ich*bytewidth;
+ int ostride = bytewidth*ochannels;
+ int istride = bytewidth*ichannels;
+ switch(bytewidth){
+ case 2:
+ while(o<bytes){
+ target[o] = source[i+1];
+ target[o+1] = source[i];
+ o+=ostride;
+ i+=istride;
+ }
+ break;
+ case 3:
+ while(o<bytes){
+ target[o] = source[i+2];
+ target[o+1] = source[i+1];
+ target[o+2] = source[i];
+ o+=ostride;
+ i+=istride;
+ }
+ break;
+ case 4:
+ while(o<bytes){
+ target[o] = source[i+3];
+ target[o+1] = source[i+2];
+ target[o+2] = source[i+1];
+ target[o+3] = source[i];
+ o+=ostride;
+ i+=istride;
+ }
+ break;
+ }
+}
+
+static void _buffer_permute(char *target,int och,int bytewidth,int ochannels,int bytes,
+ char *source,int ich, int ichannels){
+ int o = och*bytewidth;
+ int i = ich*bytewidth;
+ int ostride = bytewidth*ochannels;
+ int istride = bytewidth*ichannels;
+ switch(bytewidth){
+ case 1:
+ while(o<bytes){
+ target[o] = source[i];
+ o+=ostride;
+ i+=istride;
+ }
+ break;
+ case 2:
+ while(o<bytes){
+ target[o] = source[i];
+ target[o+1] = source[i+1];
+ o+=ostride;
+ i+=istride;
+ }
+ break;
+ case 3:
+ while(o<bytes){
+ target[o] = source[i];
+ target[o+1] = source[i+1];
+ target[o+2] = source[i+2];
+ o+=ostride;
+ i+=istride;
+ }
+ break;
+ case 4:
+ while(o<bytes){
+ target[o] = source[i];
+ target[o+1] = source[i+1];
+ target[o+2] = source[i+2];
+ target[o+3] = source[i+3];
+ o+=ostride;
+ i+=istride;
+ }
+ break;
+ }
+}
+
+
+#ifndef STRIP_PLUGINS
+/* Swap and copy the byte order of samples from the source buffer to
+ the target buffer. */
+static void _swap_samples(char *target_buffer, char* source_buffer,
+ uint_32 num_bytes)
+{
+ uint_32 i;
+
+ for (i = 0; i < num_bytes; i += 2) {
+ target_buffer[i] = source_buffer[i+1];
+ target_buffer[i+1] = source_buffer[i];
+ }
+}
+#endif
+
+/* the channel locations we know right now. code below assumes U is in slot 0, X in 1, M in 2 */
+static char *mnemonics[]={
+ "X",
+ "M",
+ "L","C","R","CL","CR","SL","SR","BL","BC","BR","LFE",
+ "A1","A2","A3","A4","A5","A6","A7","A8","A9","A10",
+ "A11","A12","A13","A14","A15","A16","A17","A18","A19","A20",
+ "A21","A22","A23","A24","A25","A26","A27","A28","A29","A30",
+ "A31","A32",NULL
+};
+
+/* Check the requested matrix string for syntax and mnemonics */
+static char *_sanitize_matrix(int maxchannels, char *matrix, ao_device *device){
+ if(matrix){
+ char *ret = calloc(strlen(matrix)+1,1); /* can only get smaller */
+ char *p=matrix;
+ int count=0;
+ while(count<maxchannels){
+ char *h,*t;
+ int m=0;
+
+ /* trim leading space */
+ while(*p && isspace(*p))p++;
+
+ /* search for seperator */
+ h=p;
+ while(*h && *h!=',')h++;
+
+ /* trim trailing space */
+ t=h;
+ while(t>p && isspace(*(t-1)))t--;
+
+ while(mnemonics[m]){
+ if(t-p && !strncmp(mnemonics[m],p,t-p) &&
+ strlen(mnemonics[m])==t-p){
+ if(count)strcat(ret,",");
+ strcat(ret,mnemonics[m]);
+ break;
+ }
+ m++;
+ }
+ if(!mnemonics[m]){
+ /* unrecognized channel mnemonic */
+ {
+ int i;
+ aerror("Unrecognized channel name \"");
+ for(i=0;i<t-p;i++)fputc(p[i],stderr);
+ fprintf(stderr,"\" in channel matrix \"%s\"\n",matrix);
+ }
+ free(ret);
+ return NULL;
+ }else
+ count++;
+ if(!*h)break;
+ p=h+1;
+ }
+ return ret;
+ }else
+ return NULL;
+}
+
+static int _find_channel(int needle, char *haystack){
+ char *p=haystack;
+ int count=0;
+
+ /* X does not map to anything, including X! */
+ if(needle==0) return -1;
+
+ while(1){
+ char *h;
+ int m=0;
+
+ /* search for seperator */
+ h=p;
+ while(*h && *h!=',')h++;
+
+ while(mnemonics[m]){
+ if(!strncmp(mnemonics[needle],p,h-p) &&
+ strlen(mnemonics[needle])==h-p)break;
+ m++;
+ }
+ if(mnemonics[m])
+ return count;
+ count++;
+ if(!*h)break;
+ p=h+1;
+ }
+ return -1;
+}
+
+static char **_tokenize_matrix(char *matrix){
+ char **ret=NULL;
+ char *p=matrix;
+ int count=0;
+ while(1){
+ char *h,*t;
+
+ /* trim leading space */
+ while(*p && isspace(*p))p++;
+
+ /* search for seperator */
+ h=p;
+ while(*h && *h!=',')h++;
+
+ /* trim trailing space */
+ t=h;
+ while(t>p && isspace(*(t-1)))t--;
+
+ count++;
+ if(!*h)break;
+ p=h+1;
+ }
+
+ ret = calloc(count+1,sizeof(*ret));
+
+ p=matrix;
+ count=0;
+ while(1){
+ char *h,*t;
+
+ /* trim leading space */
+ while(*p && isspace(*p))p++;
+
+ /* search for seperator */
+ h=p;
+ while(*h && *h!=',')h++;
+
+ /* trim trailing space */
+ t=h;
+ while(t>p && isspace(*(t-1)))t--;
+
+ ret[count] = calloc(t-p+1,1);
+ memcpy(ret[count],p,t-p);
+ count++;
+ if(!*h)break;
+ p=h+1;
+ }
+
+ return ret;
+
+}
+
+static void _free_map(char **m){
+ char **in=m;
+ while(m && *m){
+ free(*m);
+ m++;
+ }
+ if(in)free(in);
+}
+
+static unsigned int _matrix_to_channelmask(int ch, char *matrix, char *premap, int **mout){
+ unsigned int ret=0;
+ char *p=matrix;
+ int *perm=(*mout=malloc(ch*sizeof(*mout)));
+ int i;
+ char **map = _tokenize_matrix(premap);
+
+ for(i=0;i<ch;i++) perm[i] = -1;
+ i=0;
+
+ while(1){
+ char *h=p;
+ int m=0;
+
+ /* search for seperator */
+ while(*h && *h!=',')h++;
+
+ while(map[m]){
+ if(h-p && !strncmp(map[m],p,h-p) &&
+ strlen(map[m])==h-p)
+ break;
+ m++;
+ }
+ /* X is a placeholder, X does not map to X */
+ if(map[m] && strcmp(map[m],"X")){
+ ret |= (1<<m);
+ perm[i] = m;
+ }
+ if(!*h)break;
+ p=h+1;
+ i++;
+ }
+
+ _free_map(map);
+ return ret;
+}
+
+static char *_channelmask_to_matrix(unsigned int mask, char *premap){
+ int m=0;
+ int count=0;
+ char buffer[257]={0};
+ char **map = _tokenize_matrix(premap);
+
+ while(map[m]){
+ if(mask & (1<<m)){
+ if(count)
+ strcat(buffer,",");
+ strcat(buffer,map[m]);
+ count++;
+ }
+ m++;
+ }
+ _free_map(map);
+ return _strdup(buffer);
+}
+
+static int _channelmask_bits(unsigned int mask){
+ int count=0;
+ while(mask){
+ if(mask&1)count++;
+ mask/=2;
+ }
+ return count;
+}
+
+static int _channelmask_maxbit(unsigned int mask){
+ int count=0;
+ int max=-1;
+ while(mask){
+ if(mask&1)max=count;
+ mask/=2;
+ count++;
+ }
+ return max;
+}
+
+static char *_matrix_intersect(char *matrix,char *premap){
+ char *p=matrix;
+ char buffer[257]={0};
+ int count=0;
+ char **map = _tokenize_matrix(premap);
+
+ while(1){
+ char *h=p;
+ int m=0;
+
+ /* search for seperator */
+ while(*h && *h!=',')h++;
+
+ while(map[m]){
+ if(h-p && !strncmp(map[m],p,h-p) &&
+ strlen(map[m])==h-p)
+ break;
+ m++;
+ }
+ /* X is a placeholder, X does not map to X */
+ if(map[m] && strcmp(map[m],"X")){
+ if(count)
+ strcat(buffer,",");
+ strcat(buffer,map[m]);
+ count++;
+ }
+
+ if(!*h)break;
+ p=h+1;
+ }
+
+ _free_map(map);
+ return _strdup(buffer);
+}
+
+static int ao_global_load_options(ao_option *options){
+ while (options != NULL) {
+ if(!strcmp(options->key,"debug")){
+ ao_global_dummy->verbose=2;
+ }else if(!strcmp(options->key,"verbose")){
+ if(ao_global_dummy->verbose<1)ao_global_dummy->verbose=1;
+ }else if(!strcmp(options->key,"quiet")){
+ ao_global_dummy->verbose=-1;
+ }
+
+ options = options->next;
+ }
+
+ return 0;
+
+}
+
+static int ao_device_load_options(ao_device *device, ao_option *options){
+
+ while (options != NULL) {
+ if(!strcmp(options->key,"matrix")){
+ /* If a driver has a static channel mapping mechanism
+ (physically constant channel mapping, or at least an
+ unvarying set of constants for mapping channels), the
+ output_matrix is already set. An app/user specified
+ output mapping trumps. */
+ if(device->output_matrix)
+ free(device->output_matrix);
+ /* explicitly set the output matrix to the requested
+ string; devices must not override. */
+ device->output_matrix = _sanitize_matrix(32, options->value, device);
+ if(!device->output_matrix){
+ aerror("Empty or inavlid output matrix\n");
+ return AO_EBADOPTION;
+ }
+ adebug("Sanitized device output matrix: %s\n",device->output_matrix);
+ }else if(!strcmp(options->key,"debug")){
+ device->verbose=2;
+ }else if(!strcmp(options->key,"verbose")){
+ if(device->verbose<1)device->verbose=1;
+ }else if(!strcmp(options->key,"quiet")){
+ device->verbose=-1;
+ }else{
+ if (!device->funcs->set_option(device, options->key, options->value)) {
+ /* Problem setting options */
+ return AO_EOPENDEVICE;
+ }
+ }
+
+ options = options->next;
+ }
+
+ return 0;
+}
+
+/* Open a device. If this is a live device, file == NULL. */
+static ao_device* _open_device(int driver_id, ao_sample_format *format,
+ ao_option *options, FILE *file)
+{
+ ao_functions *funcs;
+ driver_list *driver;
+ ao_device *device=NULL;
+ int result;
+ ao_sample_format sformat=*format;
+ sformat.matrix=NULL;
+
+ /* Get driver id */
+ if ( (driver = _get_driver(driver_id)) == NULL ) {
+ errno = AO_ENODRIVER;
+ goto error;
+ }
+
+ funcs = driver->functions;
+
+ /* Check the driver type */
+ if (file == NULL &&
+ funcs->driver_info()->type != AO_TYPE_LIVE) {
+
+ errno = AO_ENOTLIVE;
+ goto error;
+ } else if (file != NULL &&
+ funcs->driver_info()->type != AO_TYPE_FILE) {
+
+ errno = AO_ENOTFILE;
+ goto error;
+ }
+
+ /* Make a new device structure */
+ if ( (device = _create_device(driver_id, driver,
+ format, file)) == NULL ) {
+ errno = AO_EFAIL;
+ goto error;
+ }
+
+ /* Initialize the device memory; get static channel mapping */
+ if (!funcs->device_init(device)) {
+ errno = AO_EFAIL;
+ goto error;
+ }
+
+ /* Load options */
+ errno = ao_device_load_options(device,ao_global_options);
+ if(errno) goto error;
+ errno = ao_device_load_options(device,options);
+ if(errno) goto error;
+
+ /* also sanitize the format input channel matrix */
+ if(format->matrix){
+ sformat.matrix = _sanitize_matrix(format->channels, format->matrix, device);
+ if(!sformat.matrix)
+ awarn("Input channel matrix invalid; ignoring.\n");
+
+ /* special-case handling of 'M'. */
+ if(sformat.channels==1 && sformat.matrix && !strcmp(sformat.matrix,"M")){
+ free(sformat.matrix);
+ sformat.matrix=NULL;
+ }
+ }
+
+ /* If device init was able to declare a static channel mapping
+ mechanism, reconcile it to the input now. Odd drivers that
+ need to communicate with a backend device to determine
+ channel mapping strategy can still bypass this mechanism
+ entirely. Also, drivers like ALSA may need to adjust
+ strategy depending on what device is successfully opened,
+ etc, but this still saves work later. */
+
+ if(device->output_matrix && sformat.matrix){
+ switch(device->output_matrix_order){
+ case AO_OUTPUT_MATRIX_FIXED:
+ /* Backend channel ordering is immutable and unused
+ channels must still be sent. Look for the highest
+ channel number we are able to map from the input
+ matrix. */
+ {
+ unsigned int mask = _matrix_to_channelmask(sformat.channels,sformat.matrix,
+ device->output_matrix,
+ &device->input_map);
+ int max = _channelmask_maxbit(mask);
+ if(max<0){
+ aerror("Unable to map any channels from input matrix to output");
+ errno = AO_EBADFORMAT;
+ goto error;
+ }
+ device->output_channels = max+1;
+ device->output_mask = mask;
+ device->inter_matrix = _strdup(device->output_matrix);
+ }
+ break;
+
+ case AO_OUTPUT_MATRIX_COLLAPSIBLE:
+ /* the ordering of channels submitted to the backend is
+ fixed, but only the channels in use should be present
+ in the audio stream */
+ {
+ unsigned int mask = _matrix_to_channelmask(sformat.channels,sformat.matrix,
+ device->output_matrix,
+ &device->input_map);
+ int channels = _channelmask_bits(mask);
+ if(channels<0){
+ aerror("Unable to map any channels from input matrix to output");
+ errno = AO_EBADFORMAT;
+ goto error;
+ }
+ device->output_channels = channels;
+ device->output_mask = mask;
+ device->inter_matrix = _channelmask_to_matrix(mask,device->output_matrix);
+ }
+ break;
+
+ case AO_OUTPUT_MATRIX_PERMUTABLE:
+ /* The ordering of channels is freeform. Only the
+ channels in use should be sent, and they may be sent in
+ any order. If possible, leave the input ordering
+ unchanged */
+ {
+ unsigned int mask = _matrix_to_channelmask(sformat.channels,sformat.matrix,
+ device->output_matrix,
+ &device->input_map);
+ int channels = _channelmask_bits(mask);
+ if(channels<0){
+ aerror("Unable to map any channels from input matrix to output");
+ errno = AO_EBADFORMAT;
+ goto error;
+ }
+ device->output_channels = channels;
+ device->output_mask = mask;
+ device->inter_matrix = _matrix_intersect(sformat.matrix,device->output_matrix);
+ }
+ break;
+
+ default:
+ aerror("Driver backend failed to set output ordering.\n");
+ errno = AO_EFAIL;
+ goto error;
+ }
+
+ }else{
+ device->output_channels = sformat.channels;
+ }
+
+ /* other housekeeping */
+ device->input_channels = sformat.channels;
+ device->bytewidth = (sformat.bits+7)>>3;
+ device->rate = sformat.rate;
+
+ /* Open the device */
+ result = funcs->open(device, &sformat);
+ if (!result) {
+ errno = AO_EOPENDEVICE;
+ goto error;
+ }
+
+ /* set up permutation based on finalized inter_matrix mapping */
+ /* The only way device->output_channels could be zero here is
+ if the driver has opted to ouput no channels (eg, the null
+ driver). */
+ if(sformat.matrix){
+ if(!device->inter_matrix){
+ awarn("Driver %s does not support automatic channel mapping;\n"
+ "\tRouting only L/R channels to output.\n\n",
+ info_table[device->driver_id]->short_name);
+ device->inter_matrix=_strdup("L,R");
+ }
+ {
+
+ /* walk thorugh the inter matrix, match channels */
+ char *op=device->inter_matrix;
+ int count=0;
+ device->inter_permute = calloc(device->output_channels,sizeof(int));
+
+ adebug("\n");
+
+ while(count<device->output_channels){
+ int m=0,mm;
+ char *h=op;
+
+ if(*op){
+ /* find mnemonic offset of inter channel */
+ while(*h && *h!=',')h++;
+ while(mnemonics[m]){
+ if(!strncmp(mnemonics[m],op,h-op))
+ break;
+ m++;
+ }
+ mm=m;
+
+ /* find match in input if any */
+ device->inter_permute[count] = _find_channel(m,sformat.matrix);
+ if(device->inter_permute[count] == -1 && sformat.channels == 1){
+ device->inter_permute[count] = _find_channel(1,sformat.matrix);
+ mm=1;
+ }
+ }else
+ device->inter_permute[count] = -1;
+
+ /* display resulting mapping for now */
+ if(device->inter_permute[count]>=0){
+ adebug("input %d (%s)\t -> backend %d (%s)\n",
+ device->inter_permute[count], mnemonics[mm],
+ count,mnemonics[m]);
+ }else{
+ adebug(" \t backend %d (%s)\n",
+ count,mnemonics[m]);
+ }
+ count++;
+ op=h;
+ if(*h)op++;
+ }
+ {
+ char **inch = _tokenize_matrix(sformat.matrix);
+ int i,j;
+ int unflag=0;
+ for(j=0;j<sformat.channels;j++){
+ for(i=0;i<device->output_channels;i++)
+ if(device->inter_permute[i]==j)break;
+ if(i==device->output_channels){
+ adebug("input %d (%s)\t -> none\n",
+ j,inch[j]);
+ unflag=1;
+ }
+ }
+ _free_map(inch);
+ if(unflag)
+ awarn("Some input channels are unmapped and will not be used.\n");
+ }
+ averbose("\n");
+
+ }
+ }
+
+ /* if there's no actual permutation to do, release the permutation vector */
+ if(device->inter_permute && device->output_channels == device->input_channels){
+ int i;
+ for(i=0;i<device->output_channels;i++)
+ if(device->inter_permute[i]!=i)break;
+ if(i==device->output_channels){
+ free(device->inter_permute);
+ device->inter_permute=NULL;
+ }
+ }
+
+ /* Resolve actual driver byte format */
+ device->driver_byte_format =
+ _real_byte_format(device->driver_byte_format);
+
+ /* Only create swap buffer if needed */
+ if (device->bytewidth>1 &&
+ device->client_byte_format != device->driver_byte_format){
+ adebug("swap buffer required:\n");
+ adebug(" machine endianness: %d\n",ao_is_big_endian());
+ adebug(" device->client_byte_format:%d\n",device->client_byte_format);
+ adebug(" device->driver_byte_format:%d\n",device->driver_byte_format);
+ }
+
+ if ( (device->bytewidth>1 &&
+ device->client_byte_format != device->driver_byte_format) ||
+ device->inter_permute){
+
+ result = _realloc_swap_buffer(device, DEF_SWAP_BUF_SIZE);
+
+ if (!result) {
+
+ if(sformat.matrix)free(sformat.matrix);
+ device->funcs->close(device);
+ device->funcs->device_clear(device);
+ free(device);
+ errno = AO_EFAIL;
+ return NULL; /* Couldn't alloc swap buffer */
+ }
+ }
+
+ /* If we made it this far, everything is OK. */
+ if(sformat.matrix)free(sformat.matrix);
+ return device;
+
+ error:
+ {
+ int errtemp = errno;
+ if(sformat.matrix)
+ free(sformat.matrix);
+ ao_close(device);
+ errno=errtemp;
+ }
+ return NULL;
+}
+
+
+/* ---------- Public Functions ---------- */
+
+/* -- Library Setup/Teardown -- */
+
+static ao_info ao_dummy_info=
+ { 0,0,0,0,0,0,0,0,0 };
+static ao_info *ao_dummy_driver_info(void){
+ return &ao_dummy_info;
+}
+static ao_functions ao_dummy_funcs=
+ { 0, &ao_dummy_driver_info, 0,0,0,0,0,0,0};
+
+void ao_initialize(void)
+{
+ driver_list *end;
+ ao_global_dummy = &ao_global_dummy_storage;
+ ao_global_dummy->funcs = &ao_dummy_funcs;
+
+ /* Read config files */
+ ao_read_config_files(&config);
+ ao_global_load_options(ao_global_options);
+
+ if (driver_head == NULL) {
+ driver_head = _load_static_drivers(&end);
+ _append_dynamic_drivers(end);
+ }
+
+ /* Create the table of driver info structs */
+ info_table = _make_info_table(&driver_head, &driver_count);
+}
+
+void ao_shutdown(void)
+{
+ driver_list *driver = driver_head;
+ driver_list *next_driver;
+
+ if (!driver_head) return;
+
+ /* unload and free all the drivers */
+ while (driver) {
+ if (driver->handle) {
+#ifndef STRIP_PLUGINS
+ dlclose(driver->handle);
+#endif
+ free(driver->functions); /* DON'T FREE STATIC FUNC TABLES */
+ }
+ next_driver = driver->next;
+ free(driver);
+ driver = next_driver;
+ }
+
+ free(info_table);
+
+ _clear_config();
+ /* NULL out driver_head or ao_initialize() won't work */
+ driver_head = NULL;
+}
+
+
+/* -- Device Setup/Playback/Teardown -- */
+int ao_append_option(ao_option **options, const char *key, const char *value)
+{
+ ao_option *op, *list;
+
+ op = calloc(1,sizeof(ao_option));
+ if (op == NULL) return 0;
+
+ op->key = _strdup(key);
+ op->value = _strdup(value?value:"");
+ op->next = NULL;
+
+ if ((list = *options) != NULL) {
+ list = *options;
+ while (list->next != NULL) list = list->next;
+ list->next = op;
+ } else {
+ *options = op;
+ }
+
+
+ return 1;
+}
+
+int ao_append_global_option(const char *key, const char *value)
+{
+ return ao_append_option(&ao_global_options,key,value);
+}
+
+void ao_free_options(ao_option *options)
+{
+ ao_option *rest;
+
+ while (options != NULL) {
+ rest = options->next;
+ free(options->key);
+ free(options->value);
+ free(options);
+ options = rest;
+ }
+}
+
+
+ao_device *ao_open_live (int driver_id, ao_sample_format *format,
+ ao_option *options)
+{
+ return _open_device(driver_id, format, options, NULL);
+}
+
+
+ao_device *ao_open_file (int driver_id, const char *filename, int overwrite,
+ ao_sample_format *format, ao_option *options)
+{
+ FILE *file;
+ ao_device *device;
+
+ if (strcmp("-", filename) == 0)
+ file = stdout;
+ else {
+
+ if (!overwrite) {
+ /* Test for file existence */
+ file = fopen(filename, "r");
+ if (file != NULL) {
+ fclose(file);
+ errno = AO_EFILEEXISTS;
+ return NULL;
+ }
+ }
+
+
+ file = fopen(filename, "w");
+ }
+
+
+ if (file == NULL) {
+ errno = AO_EOPENFILE;
+ return NULL;
+ }
+
+ device = _open_device(driver_id, format, options, file);
+
+ if (device == NULL) {
+ fclose(file);
+ /* errno already set by _open_device() */
+ return NULL;
+ }
+
+ return device;
+}
+
+
+int ao_play(ao_device *device, char* output_samples, uint_32 num_bytes)
+{
+ char *playback_buffer;
+
+ if (device == NULL)
+ return 0;
+
+ if (device->swap_buffer != NULL) {
+ int out_bytes = num_bytes*device->output_channels/device->input_channels;
+ if (_realloc_swap_buffer(device, out_bytes)) {
+ int i;
+ int swap = (device->bytewidth>1 &&
+ device->client_byte_format != device->driver_byte_format);
+ for(i=0;i<device->output_channels;i++){
+ int ic = device->inter_permute ? device->inter_permute[i] : i;
+ if(ic==-1){
+ _buffer_zero(device->swap_buffer,i,device->bytewidth,device->output_channels,
+ out_bytes);
+ }else if(swap){
+ _buffer_permute_swap(device->swap_buffer,i,device->bytewidth,device->output_channels,
+ out_bytes, output_samples, ic, device->input_channels);
+ }else{
+ _buffer_permute(device->swap_buffer,i,device->bytewidth,device->output_channels,
+ out_bytes, output_samples, ic, device->input_channels);
+ }
+ }
+ playback_buffer = device->swap_buffer;
+ num_bytes = out_bytes;
+ } else
+ return 0; /* Could not expand swap buffer */
+ } else
+ playback_buffer = output_samples;
+
+ return device->funcs->play(device, playback_buffer, num_bytes);
+}
+
+
+int ao_close(ao_device *device)
+{
+ int result;
+
+ if (device == NULL)
+ result = 0;
+ else {
+ result = device->funcs->close(device);
+ device->funcs->device_clear(device);
+
+ if (device->file) {
+ fclose(device->file);
+ device->file = NULL;
+ }
+
+ if (device->swap_buffer != NULL)
+ free(device->swap_buffer);
+ if (device->output_matrix != NULL)
+ free(device->output_matrix);
+ if (device->input_map != NULL)
+ free(device->input_map);
+ if (device->inter_matrix != NULL)
+ free(device->inter_matrix);
+ if (device->inter_permute != NULL)
+ free(device->inter_permute);
+ free(device);
+ }
+
+ return result;
+}
+
+
+/* -- Driver Information -- */
+
+int ao_driver_id(const char *short_name)
+{
+ int i;
+ driver_list *driver = driver_head;
+
+ i = 0;
+ while (driver) {
+ if (strcmp(short_name,
+ driver->functions->driver_info()->short_name) == 0)
+ return i;
+ driver = driver->next;
+ i++;
+ }
+
+ return -1; /* No driver by that name */
+}
+
+
+int ao_default_driver_id (void)
+{
+ /* Find the default driver in the list of loaded drivers */
+
+ return _find_default_driver_id(config.default_driver);
+}
+
+
+ao_info *ao_driver_info(int driver_id)
+{
+ driver_list *driver;
+
+ if ( (driver = _get_driver(driver_id)) )
+ return driver->functions->driver_info();
+ else
+ return NULL;
+}
+
+
+ao_info **ao_driver_info_list(int *count)
+{
+ *count = driver_count;
+ return info_table;
+}
+
+
+/* -- Miscellaneous -- */
+
+/* Stolen from Vorbis' lib/vorbisfile.c */
+int ao_is_big_endian(void)
+{
+ static uint_16 pattern = 0xbabe;
+ return 0[(volatile unsigned char *)&pattern] == 0xba;
+}
diff --git a/libao/src/src/config.c b/libao/src/src/config.c
new file mode 100644
index 0000000..9693730
--- /dev/null
+++ b/libao/src/src/config.c
@@ -0,0 +1,111 @@
+/*
+ *
+ * config.c
+ *
+ * Copyright (C) Stan Seibert - July 2000
+ * Copyright (C) Monty - Mar 2010
+ *
+ * This file is part of libao, a cross-platform audio output library. See
+ * README for a history of this source code.
+ *
+ * libao 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.
+ *
+ * libao 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 GNU Make; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ********************************************************************
+
+ last mod: $Id: config.c 17763 2010-12-17 11:28:29Z xiphmont $
+
+ ********************************************************************/
+
+#include "ao/ao.h"
+#include "ao/ao_private.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include <ctype.h>
+
+#define LINE_LEN 100
+
+static char *trim(char *p){
+ char *t;
+ while(*p && isspace(*p))p++;
+ if(*p){
+ t=p+strlen(p);
+ while(t>p && isspace(*(t-1))){
+ t--;
+ *t='\0';
+ }
+ }
+ return p;
+}
+
+static int ao_read_config_file(ao_config *config, const char *config_file)
+{
+ FILE *fp;
+ char line[LINE_LEN];
+ int end;
+
+ if ( !(fp = fopen(config_file, "r")) )
+ return 0; /* Can't open file */
+
+ while (fgets(line, LINE_LEN, fp)) {
+ /* All options are key=value */
+
+ if (strncmp(line, "default_driver=", 15) == 0) {
+ free(config->default_driver);
+ end = strlen(line);
+ if (line[end-1] == '\n')
+ line[end-1] = 0; /* Remove trailing newline */
+
+ config->default_driver = _strdup(line+15);
+ }else{
+ /* entries in the config file that don't parse as
+ directives to AO at large are treated as driver
+ options */
+ char *key=trim(line);
+ if(key && *key){
+ char *val=strchr(key,'=');
+ if(val){
+ *val='\0';
+ val++;
+ }
+ ao_append_global_option(key,val);
+ }
+ }
+ }
+
+ fclose(fp);
+
+ return 1;
+}
+
+void ao_read_config_files (ao_config *config)
+{
+ char userfile[FILENAME_MAX+1];
+ char *homedir = getenv("HOME");
+
+ /* Read the system-wide config file */
+ ao_read_config_file(config, AO_SYSTEM_CONFIG);
+
+ /* Read the user config file */
+ if ( homedir!=NULL &&
+ strlen(homedir) <= FILENAME_MAX - strlen(AO_USER_CONFIG) )
+ {
+ strncpy(userfile, homedir, FILENAME_MAX);
+ strcat(userfile, AO_USER_CONFIG);
+ ao_read_config_file(config, userfile);
+ }
+}
+
--
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