From 2d590414e3270d9245479b8d4cdf83c8a68603b3 Mon Sep 17 00:00:00 2001
From: Jack Moffitt <jack@xiph.org>
Date: Mon, 30 Oct 2000 00:46:43 +0000
Subject: [PATCH] the long awaited ao fixes. this hasn't been well tested.
git-svn-id: http://svn.xiph.org/trunk/ao@772 0101bb08-14d6-0310-b084-bc0e0c8e3800
---
Makefile.am | 7 +-
acinclude.m4 | 164 +++++++++++++
ao-config.in | 116 ++++++++++
ao.m4 | 110 +++++++++
configure.in | 156 +++----------
include/ao/ao.h | 74 +++---
include/ao/os_types.h.in | 4 +-
src/Makefile.am | 6 +-
src/ao_null.c | 40 ++--
src/ao_wav.c | 95 +++-----
src/audio_out.c | 308 +++++++++++++++----------
src/plugins/Makefile.am | 4 +
src/plugins/alsa/Makefile.am | 27 +++
src/{ => plugins/alsa}/ao_alsa.c | 0
src/plugins/esd/Makefile.am | 28 +++
src/{ => plugins/esd}/ao_esd.c | 2 +-
src/{ => plugins/irix}/ao_irix.c | 0
src/plugins/oss/Makefile.am | 27 +++
src/{ => plugins/oss}/ao_oss.c | 0
src/{ => plugins/solaris}/ao_solaris.c | 0
20 files changed, 781 insertions(+), 387 deletions(-)
create mode 100644 acinclude.m4
create mode 100644 ao-config.in
create mode 100644 ao.m4
create mode 100644 src/plugins/Makefile.am
create mode 100644 src/plugins/alsa/Makefile.am
rename src/{ => plugins/alsa}/ao_alsa.c (100%)
create mode 100644 src/plugins/esd/Makefile.am
rename src/{ => plugins/esd}/ao_esd.c (99%)
rename src/{ => plugins/irix}/ao_irix.c (100%)
create mode 100644 src/plugins/oss/Makefile.am
rename src/{ => plugins/oss}/ao_oss.c (100%)
rename src/{ => plugins/solaris}/ao_solaris.c (100%)
diff --git a/Makefile.am b/Makefile.am
index 99d7d1c..de996fc 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -4,7 +4,12 @@ AUTOMAKE_OPTIONS = foreign dist-zip
SUBDIRS = src include doc
-EXTRA_DIST = README AUTHORS CHANGES COPYING libao.spec
+bin_SCRIPTS = ao-config
+
+m4datadir = $(datadir)/aclocal
+m4data_DATA = ao.m4
+
+EXTRA_DIST = README AUTHORS CHANGES COPYING libao.spec ao.m4
debug:
$(MAKE) all CFLAGS="@DEBUG@"
diff --git a/acinclude.m4 b/acinclude.m4
new file mode 100644
index 0000000..39b3789
--- /dev/null
+++ b/acinclude.m4
@@ -0,0 +1,164 @@
+# Configure paths for ESD
+# Manish Singh 98-9-30
+# stolen back from Frank Belew
+# stolen from Manish Singh
+# Shamelessly stolen from Owen Taylor
+
+dnl AM_PATH_ESD([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
+dnl Test for ESD, and define ESD_CFLAGS and ESD_LIBS
+dnl
+AC_DEFUN(AM_PATH_ESD,
+[dnl
+dnl Get the cflags and libraries from the esd-config script
+dnl
+AC_ARG_WITH(esd-prefix,[ --with-esd-prefix=PFX Prefix where ESD is installed (optional)],
+ esd_prefix="$withval", esd_prefix="")
+AC_ARG_WITH(esd-exec-prefix,[ --with-esd-exec-prefix=PFX Exec prefix where ESD is installed (optional)],
+ esd_exec_prefix="$withval", esd_exec_prefix="")
+AC_ARG_ENABLE(esdtest, [ --disable-esdtest Do not try to compile and run a test ESD program],
+ , enable_esdtest=yes)
+
+ if test x$esd_exec_prefix != x ; then
+ esd_args="$esd_args --exec-prefix=$esd_exec_prefix"
+ if test x${ESD_CONFIG+set} != xset ; then
+ ESD_CONFIG=$esd_exec_prefix/bin/esd-config
+ fi
+ fi
+ if test x$esd_prefix != x ; then
+ esd_args="$esd_args --prefix=$esd_prefix"
+ if test x${ESD_CONFIG+set} != xset ; then
+ ESD_CONFIG=$esd_prefix/bin/esd-config
+ fi
+ fi
+
+ AC_PATH_PROG(ESD_CONFIG, esd-config, no)
+ min_esd_version=ifelse([$1], ,0.2.7,$1)
+ AC_MSG_CHECKING(for ESD - version >= $min_esd_version)
+ no_esd=""
+ if test "$ESD_CONFIG" = "no" ; then
+ no_esd=yes
+ else
+ ESD_CFLAGS=`$ESD_CONFIG $esdconf_args --cflags`
+ ESD_LIBS=`$ESD_CONFIG $esdconf_args --libs`
+
+ esd_major_version=`$ESD_CONFIG $esd_args --version | \
+ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
+ esd_minor_version=`$ESD_CONFIG $esd_args --version | \
+ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
+ esd_micro_version=`$ESD_CONFIG $esd_config_args --version | \
+ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
+ if test "x$enable_esdtest" = "xyes" ; then
+ ac_save_CFLAGS="$CFLAGS"
+ ac_save_LIBS="$LIBS"
+ CFLAGS="$CFLAGS $ESD_CFLAGS"
+ LIBS="$LIBS $ESD_LIBS"
+dnl
+dnl Now check if the installed ESD is sufficiently new. (Also sanity
+dnl checks the results of esd-config to some extent
+dnl
+ rm -f conf.esdtest
+ AC_TRY_RUN([
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <esd.h>
+
+char*
+my_strdup (char *str)
+{
+ char *new_str;
+
+ if (str)
+ {
+ new_str = malloc ((strlen (str) + 1) * sizeof(char));
+ strcpy (new_str, str);
+ }
+ else
+ new_str = NULL;
+
+ return new_str;
+}
+
+int main ()
+{
+ int major, minor, micro;
+ char *tmp_version;
+
+ system ("touch conf.esdtest");
+
+ /* HP/UX 9 (%@#!) writes to sscanf strings */
+ tmp_version = my_strdup("$min_esd_version");
+ if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) {
+ printf("%s, bad version string\n", "$min_esd_version");
+ exit(1);
+ }
+
+ if (($esd_major_version > major) ||
+ (($esd_major_version == major) && ($esd_minor_version > minor)) ||
+ (($esd_major_version == major) && ($esd_minor_version == minor) && ($esd_micro_version >= micro)))
+ {
+ return 0;
+ }
+ else
+ {
+ printf("\n*** 'esd-config --version' returned %d.%d.%d, but the minimum version\n", $esd_major_version, $esd_minor_version, $esd_micro_version);
+ printf("*** of ESD required is %d.%d.%d. If esd-config is correct, then it is\n", major, minor, micro);
+ printf("*** best to upgrade to the required version.\n");
+ printf("*** If esd-config was wrong, set the environment variable ESD_CONFIG\n");
+ printf("*** to point to the correct copy of esd-config, and remove the file\n");
+ printf("*** config.cache before re-running configure\n");
+ return 1;
+ }
+}
+
+],, no_esd=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
+ CFLAGS="$ac_save_CFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+ fi
+ if test "x$no_esd" = x ; then
+ AC_MSG_RESULT(yes)
+ ifelse([$2], , :, [$2])
+ else
+ AC_MSG_RESULT(no)
+ if test "$ESD_CONFIG" = "no" ; then
+ echo "*** The esd-config script installed by ESD could not be found"
+ echo "*** If ESD was installed in PREFIX, make sure PREFIX/bin is in"
+ echo "*** your path, or set the ESD_CONFIG environment variable to the"
+ echo "*** full path to esd-config."
+ else
+ if test -f conf.esdtest ; then
+ :
+ else
+ echo "*** Could not run ESD test program, checking why..."
+ CFLAGS="$CFLAGS $ESD_CFLAGS"
+ LIBS="$LIBS $ESD_LIBS"
+ AC_TRY_LINK([
+#include <stdio.h>
+#include <esd.h>
+], [ return 0; ],
+ [ echo "*** The test program compiled, but did not run. This usually means"
+ echo "*** that the run-time linker is not finding ESD or finding the wrong"
+ echo "*** version of ESD. If it is not finding ESD, you'll need to set your"
+ echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
+ echo "*** to the installed location Also, make sure you have run ldconfig if that"
+ echo "*** is required on your system"
+ echo "***"
+ echo "*** If you have an old version installed, it is best to remove it, although"
+ echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
+ [ echo "*** The test program failed to compile or link. See the file config.log for the"
+ echo "*** exact error that occured. This usually means ESD was incorrectly installed"
+ echo "*** or that you have moved ESD since it was installed. In the latter case, you"
+ echo "*** may want to edit the esd-config script: $ESD_CONFIG" ])
+ CFLAGS="$ac_save_CFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+ fi
+ ESD_CFLAGS=""
+ ESD_LIBS=""
+ ifelse([$3], , :, [$3])
+ fi
+ AC_SUBST(ESD_CFLAGS)
+ AC_SUBST(ESD_LIBS)
+ rm -f conf.esdtest
+])
diff --git a/ao-config.in b/ao-config.in
new file mode 100644
index 0000000..592f9e0
--- /dev/null
+++ b/ao-config.in
@@ -0,0 +1,116 @@
+#!/bin/sh
+
+# ao-config
+#
+# Tool for retrieving the library/include paths ao was compiled with.
+#
+# Written 29 October 2000 by Jack Moffitt <jack@icecast.org>
+# Based *HEAVILY* on xmms-config from the XMMS package
+# which was
+# Based *HEAVILY* on gtk-config from the GTK+ library package.
+#
+# This work is released under the GNU GPL, version 2 or later.
+
+prefix="@prefix@"
+exec_prefix="@exec_prefix@"
+exec_prefix_set=no
+data_dir="@datadir@/@PACKAGE@"
+
+version="@VERSION@"
+include_dir="@includedir@"
+ao_include_dir="@includedir@/@PACKAGE@"
+lib_dir="@libdir@"
+
+esd_cflags="@ESD_CFLAGS@"
+esd_libs="@ESD_LIBS@"
+
+plugin_dir="@plugindir@"
+
+usage()
+{
+ cat <<EOF
+Usage: ao-config [OPTIONS]
+Options:
+ [--prefix[=DIR]]
+ [--version]
+ [--libs]
+ [--cflags]
+ [--plugin-dir]
+
+EOF
+ exit $1
+}
+
+if test $# -eq 0; then
+ usage 1 1>&2
+fi
+
+while test $# -gt 0; do
+ case "$1" in
+ -*=*) optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
+ *) optarg= ;;
+ esac
+
+ case $1 in
+ --prefix=*)
+ prefix=$optarg
+ ;;
+
+ --prefix)
+ echo_prefix=yes
+ ;;
+
+ --version)
+ echo $version
+ ;;
+
+ --cflags)
+ echo_cflags=yes
+ ;;
+
+ --libs)
+ echo_libs=yes
+ ;;
+
+ --plugin-dir)
+ echo_plugin_dir=yes
+ ;;
+
+ *)
+ usage 1 1>&2
+ ;;
+ esac
+ shift
+done
+
+if test "$echo_prefix" = "yes"; then
+ echo $prefix
+fi
+
+if test "$echo_exec_prefix" = "yes"; then
+ echo $exec_prefix
+fi
+
+if test "$include_dir" != "/usr/include"; then
+ cflags="-I$include_dir $esd_cflags"
+else
+ cflags="$esd_cflags"
+fi
+
+if test "$lib_dir" != "/usr/lib"; then
+ libs="-L$lib_dir $esd_libs -lao"
+else
+ libs="$esd_libs -lao"
+fi
+
+if test "$echo_cflags" = "yes"; then
+ echo $cflags
+fi
+
+if test "$echo_libs" = "yes"; then
+ echo $libs
+fi
+
+if test "$echo_plugin_dir" = "yes"; then
+ echo $plugin_dir
+fi
diff --git a/ao.m4 b/ao.m4
new file mode 100644
index 0000000..e651e55
--- /dev/null
+++ b/ao.m4
@@ -0,0 +1,110 @@
+# Configure paths for libao
+# Jack Moffitt <jack@icecast.org> 10-21-2000
+# Shamelessly stolen from Owen Taylor and Manish Singh
+
+dnl AM_PATH_AO([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
+dnl Test for libao, and define AO_CFLAGS and AO_LIBS
+dnl
+AC_DEFUN(AM_PATH_AO,
+[dnl
+dnl Get the cflags and libraries from the ao-config script
+dnl
+AC_ARG_WITH(ao-prefix,[ --with-ao-prefix=PFX Prefix where libao is installed (optional)], ao_prefix="$withval", ao_prefix="")
+AC_ARG_ENABLE(aotest, [ --disable-aotest Do not try to compile and run a test ao program],, enable_aotest=yes)
+
+ if test x$ao_prefix != x ; then
+ ao_args="$ao_args --prefix=$ao_prefix"
+ if test x${AO_CONFIG+set} != xset ; then
+ AO_CONFIG=$ao_prefix/bin/ao-config
+ fi
+ fi
+
+ AC_PATH_PROG(AO_CONFIG, ao-config, no)
+ min_ao_version=ifelse([$1], ,1.0.0,$1)
+ AC_MSG_CHECKING(for ao - version >= $min_ao_version)
+ no_ao=""
+ if test "$AO_CONFIG" = "no" ; then
+ no_ao=yes
+ else
+ AO_CFLAGS=`$AO_CONFIG $aoconf_args --cflags`
+ AO_LIBS=`$AO_CONFIG $aoconf_args --libs`
+
+ ao_major_version=`$AO_CONFIG $ao_args --version | \
+ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
+ ao_minor_version=`$AO_CONFIG $ao_args --version | \
+ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
+ ao_micro_version=`$AO_CONFIG $ao_config_args --version | \
+ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
+ if test "x$enable_aotest" = "xyes" ; then
+ ac_save_CFLAGS="$CFLAGS"
+ ac_save_LIBS="$LIBS"
+ CFLAGS="$CFLAGS $AO_CFLAGS"
+ LIBS="$LIBS $AO_LIBS"
+dnl
+dnl Now check if the installed ao is sufficiently new. (Also sanity
+dnl checks the results of ao-config to some extent
+dnl
+ rm -f conf.aotest
+ AC_TRY_RUN([
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ao/ao.h>
+
+int main ()
+{
+ system("touch conf.aotest");
+ return 0;
+}
+
+],, no_ao=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
+ CFLAGS="$ac_save_CFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+ fi
+ if test "x$no_ao" = x ; then
+ AC_MSG_RESULT(yes)
+ ifelse([$2], , :, [$2])
+ else
+ AC_MSG_RESULT(no)
+ if test "$AO_CONFIG" = "no" ; then
+ echo "*** The ao-config script installed by ao could not be found"
+ echo "*** If ao was installed in PREFIX, make sure PREFIX/bin is in"
+ echo "*** your path, or set the AO_CONFIG environment variable to the"
+ echo "*** full path to ao-config."
+ else
+ if test -f conf.aotest ; then
+ :
+ else
+ echo "*** Could not run ao test program, checking why..."
+ CFLAGS="$CFLAGS $AO_CFLAGS"
+ LIBS="$LIBS $AO_LIBS"
+ AC_TRY_LINK([
+#include <stdio.h>
+#include <ao/ao.h>
+], [ return 0; ],
+ [ echo "*** The test program compiled, but did not run. This usually means"
+ echo "*** that the run-time linker is not finding ao or finding the wrong"
+ echo "*** version of ao. If it is not finding ao, you'll need to set your"
+ echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
+ echo "*** to the installed location Also, make sure you have run ldconfig if that"
+ echo "*** is required on your system"
+ echo "***"
+ echo "*** If you have an old version installed, it is best to remove it, although"
+ echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
+ [ echo "*** The test program failed to compile or link. See the file config.log for the"
+ echo "*** exact error that occured. This usually means ao was incorrectly installed"
+ echo "*** or that you have moved ao since it was installed. In the latter case, you"
+ echo "*** may want to edit the ao-config script: $AO_CONFIG" ])
+ CFLAGS="$ac_save_CFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+ fi
+ AO_CFLAGS=""
+ AO_LIBS=""
+ ifelse([$3], , :, [$3])
+ fi
+ AC_SUBST(AO_CFLAGS)
+ AC_SUBST(AO_LIBS)
+ rm -f conf.aotest
+])
diff --git a/configure.in b/configure.in
index 59a7ea7..126e7f7 100644
--- a/configure.in
+++ b/configure.in
@@ -2,6 +2,7 @@ dnl Process this file with autoconf to produce a configure script.
AC_INIT(src/audio_out.c)
AM_INIT_AUTOMAKE(libao,1.0.0)
+AM_DISABLE_STATIC
dnl Library versioning
LIB_CURRENT=0
@@ -13,13 +14,15 @@ AC_SUBST(LIB_AGE)
AC_CANONICAL_HOST
+plugindir=$libdir/ao
+AC_SUBST(plugindir)
+
dnl ====================================
dnl Check for programs
dnl ====================================
AC_PROG_CC
AM_PROG_LIBTOOL
-AC_PROG_CPP
AC_PROG_RANLIB
AC_SUBST(RANLIB)
@@ -64,6 +67,7 @@ else
esac
fi
+
AC_SUBST(CC)
AC_SUBST(DEBUG)
AC_SUBST(PROFILE)
@@ -72,20 +76,10 @@ dnl ==============================
dnl Check for libraries
dnl ==============================
-dnl --- if we're on irix, check for -laudio ---
-
-case $host in
- *-*-irix*)
- AC_CHECK_LIB(audio, ALwritesamps)
- ;;
-esac
-
dnl ==============================
dnl Checks for header files
dnl ==============================
-AC_HEADER_STDC
-
dnl ==============================
dnl Checks for types
dnl ==============================
@@ -106,144 +100,46 @@ case 4 in
esac
if test -z "$SIZE16"; then
- AC_MSG_WARN(No 16 bit type found on this platform!)
+ AC_MSG_ERROR(No 16 bit type found on this platform!)
fi
if test -z "$SIZE32"; then
- AC_MSG_WARN(No 32 bit type found on this platform!)
+ AC_MSG_ERROR(No 32 bit type found on this platform!)
fi
AC_SUBST(SIZE16)
AC_SUBST(SIZE32)
-AC_SUBST(SIZE64)
-
-dnl =========================================
-dnl Figure out which ao_* files to compile
-dnl =========================================
-
-AC_ARG_ENABLE(oss,,,enable_oss=yes)
-AC_ARG_ENABLE(irix,,,enable_irix=yes)
-AC_ARG_ENABLE(solaris,,,enable_solaris=yes)
-AC_ARG_ENABLE(alsa,,,enable_alsa=yes)
-AC_ARG_ENABLE(esd,,,enable_esd=yes)
-AC_ARG_ENABLE(default-output,,,enable_default_output=def)
dnl ======================================
dnl Detect possible output devices
dnl ======================================
-dnl --- Initialize default variable values ---
-has_oss=no
-has_irix=no
-has_solaris=no
-has_esd=no
-has_alsa=no
-need_libossaudio=no
-
-AC_CHECK_LIB(ossaudio, main, has_libossaudio=yes, has_libossaudio=no)
-
-case $host in
- *-*-linux*|*-openbsd*|*-freebsd*)
- has_oss=yes;;
- *-netbsd*)
- if test has_libossaudio = "yes"; then
- has_oss=yes
- need_libossaudio=yes
- fi;;
- *-irix*)
- has_irix=yes;;
- *-solaris*)
- has_solaris=yes;;
-esac
-
-AC_CHECK_LIB(esd, esd_play_stream, has_esd=yes)
-AC_CHECK_LIB(asound, snd_pcm_open, has_alsa=yes, has_alsa=no)
-
-dnl -- Set appropriate variables for each driver --
-
-AC_MSG_CHECKING("whether to compile OSS driver")
-if test $enable_oss = "yes" && test $has_oss = "yes"; then
- AC_MSG_RESULT("yes")
- LIBAO_FILES="$LIBAO_FILES ao_oss.c"
- LIBAO_FLAGS="$LIBAO_FLAGS -DAO_COMPILE_OSS"
- if test need_libossaudio = yes; then
- LIBAO_LIBS="$LIBAO_LIBS -lossaudio"
- fi
- ao_default=oss
-else
- AC_MSG_RESULT("no")
-fi
+dnl Check for ESD
-AC_MSG_CHECKING("whether to compile IRIX driver")
-if test $enable_irix = "yes" && test $has_irix = "yes"; then
- AC_MSG_RESULT("yes")
- LIBAO_FILES="$LIBAO_FILES ao_irix.c"
- LIBAO_FLAGS="$LIBAO_FLAGS -DAO_COMPILE_IRIX"
- ao_default=irix
-else
- AC_MSG_RESULT("no")
-fi
+AM_PATH_ESD(0.2.8, have_esd=yes, have_esd=no)
+AM_CONDITIONAL(HAVE_ESD,test "x$have_esd" = xyes)
-AC_MSG_CHECKING("whether to compile Solaris driver")
-if test $enable_solaris = "yes" && test $has_solaris = "yes"; then
- LIBAO_FILES="$LIBAO_FILES ao_solaris.c"
- LIBAO_FLAGS="$LIBAO_FLAGS -DAO_COMPILE_SOLARIS"
- ao_default=solaris
-else
- AC_MSG_RESULT("no")
-fi
+dnl Check for OSS
-AC_MSG_CHECKING("whether to compile ESD driver")
-if test $enable_esd = "yes" && test $has_esd = "yes"; then
- AC_MSG_RESULT("yes")
- LIBAO_LIBS="$LIBAO_LIBS -lesd"
- LIBAO_FLAGS="$LIBAO_FLAGS -DAO_COMPILE_ESD"
- LIBAO_FILES="$LIBAO_FILES ao_esd.c"
-else
- AC_MSG_RESULT("no")
-fi
+AC_CHECK_HEADERS(sys/soundcard.h)
+AC_CHECK_HEADERS(machine/soundcard.h)
+AM_CONDITIONAL(HAVE_OSS,test "${ac_cv_header_sys_soundcard_h}" = "yes" || test "${ac_cv_header_machine_soundcard_h}" = "yes")
-AC_MSG_CHECKING("whether to compile ALSA driver")
-if test $enable_alsa = "yes" && test $has_alsa = "yes"; then
- AC_MSG_RESULT("yes")
- LIBAO_FLAGS="$LIBAO_FLAGS -DAO_COMPILE_ALSA"
- LIBAO_FILES="$LIBAO_FILES ao_alsa.c"
- LIBAO_LIBS="$LIBAO_LIBS -lasound"
-else
- AC_MSG_RESULT("no")
-fi
+dnl Check for ALSA
-dnl -- Set the default device
+AC_CHECK_LIB(asound, snd_pcm_open, has_alsa=yes, has_alsa=no)
+AM_CONDITIONAL(HAVE_ALSA,test "x$have_alsa" = xyes)
-if test $enable_default_output != "def"; then
- ao_default=$enable_default_output
-fi
+dnl Check for IRIX
-case $ao_default in
- null)
- AO_DEFAULT_DEF=AO_NULL;;
- oss)
- AO_DEFAULT_DEF=AO_OSS;;
- irix)
- AO_DEFAULT_DEF=AO_IRIX;;
- solaris)
- AO_DEFAULT_DEF=AO_SOLARIS;;
- esd)
- AO_DEFAULT_DEF=AO_ESD;;
- alsa)
- AO_DEFAULT_DEF=AO_ALSA;;
- wav)
- AO_DEFAULT_DEF=AO_WAV;;
- *)
- dnl Make the default output device AO_NULL
- ao_default=null
- AO_DEFAULT_DEF=AO_NULL;;
+case $host in
+ *-*-irix*)
+ AC_CHECK_LIB(audio, ALwritesamps, have_irix=yes, have_irix=no)
+ ;;
esac
+AM_CONDITIONAL(HAVE_IRIX,test "x$have_irix" = xyes)
-AC_MSG_RESULT("setting default output device... $ao_default")
-
-CFLAGS="$LIBAO_FLAGS -DAO_DEFAULT=$AO_DEFAULT_DEF"
+AM_CONDITIONAL(HAVE_SOLARIS,test "x$have_solaris" = xyes)
-AC_SUBST(LIBAO_FILES)
-AC_SUBST(LIBAO_LIBS)
+CFLAGS="$CFLAGS -DAO_PLUGIN_PATH=\\\"$plugindir\\\""
-AC_OUTPUT(Makefile src/Makefile doc/Makefile include/Makefile include/ao/Makefile include/ao/os_types.h include/ao/ao_libs.inc)
+AC_OUTPUT(Makefile src/Makefile doc/Makefile include/Makefile include/ao/Makefile include/ao/os_types.h include/ao/ao_libs.inc src/plugins/Makefile src/plugins/esd/Makefile src/plugins/oss/Makefile src/plugins/alsa/Makefile ao-config)
diff --git a/include/ao/ao.h b/include/ao/ao.h
index b9835b6..b276fe6 100644
--- a/include/ao/ao.h
+++ b/include/ao/ao.h
@@ -1,11 +1,12 @@
/*
*
- * audio_out.h
+ * ao.h
*
* Original Copyright (C) Aaron Holtzman - May 1999
* Modifications Copyright (C) Stan Seibert - July 2000
+ * More Modifications Copyright (C) Jack Moffitt - October 2000
*
- * This file is part of libao, a cross-platform library. See
+ * 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
@@ -23,9 +24,10 @@
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
+#ifndef __AO_H__
+#define __AO_H__
#include <stdlib.h>
-
#include "os_types.h"
/* --- Structures --- */
@@ -36,8 +38,7 @@ typedef struct ao_option_s {
struct ao_option_s *next;
} ao_option_t;
-typedef struct ao_info_s
-{
+typedef struct ao_info_s {
/* driver name (Ex: "OSS Audio driver") */
const char *name;
/* short name (for config strings) (Ex: "oss") */
@@ -50,59 +51,46 @@ typedef struct ao_info_s
typedef void ao_internal_t;
-typedef struct ao_functions_s
-{
- ao_info_t* (*get_driver_info) (void);
- ao_internal_t* (*open) (uint_32 bits, uint_32 rate,
- uint_32 channels, ao_option_t *options);
- void (*play) (ao_internal_t *state,
- void* output_samples, uint_32 num_bytes);
- void (*close) (ao_internal_t *state);
+typedef struct ao_functions_s {
+ ao_info_t *(*get_driver_info)(void);
+ ao_internal_t *(*open)(uint_32 bits, uint_32 rate, uint_32 channels, ao_option_t *options);
+ void (*play)(ao_internal_t *state, void* output_samples, uint_32 num_bytes);
+ void (*close)(ao_internal_t *state);
} ao_functions_t;
-typedef struct ao_device_s
-{
+typedef struct ao_device_s {
ao_functions_t *funcs;
ao_internal_t *state;
} ao_device_t;
-/* --- Driver id numbers --- */
+/* --- Standard driver_id numbers --- */
#define AO_NULL 0
-
-#define AO_OSS 1
-#define AO_IRIX 2
-#define AO_SOLARIS 3
-#define AO_WIN32 4
-#define AO_BEOS 5
-#define AO_ESD 6
-#define AO_ALSA 7
-
-#define AO_WAV 10
-#define AO_RAW 11
-
-/* Total number of drivers */
-#define AO_DRIVERS 12
-
+#define AO_RAW 1
+#define AO_WAV 2
/* --- Functions --- */
-int ao_get_driver_id (const char *short_name);
-
-ao_info_t *ao_get_driver_info (int driver_id);
-
-ao_device_t *ao_open (int driver_id, uint_32 bits, uint_32 rate, uint_32 channels,
- ao_option_t *options);
+/* library init/shutdown */
+void ao_initialize(void);
+void ao_shutdown(void);
-void ao_play (ao_device_t *device, void* output_samples, uint_32 num_bytes);
+/* driver information */
+int ao_get_driver_id(const char *short_name);
+ao_info_t *ao_get_driver_info(int driver_id);
-void ao_close (ao_device_t *device);
+/* driver options */
+int ao_append_options(ao_option_t **options, const char *op_str);
+void ao_free_options(ao_option_t *options);
-/* Returns 1 if options successfully appended, 0 if error */
-int ao_append_option (ao_option_t **options, const char* op_str);
+/* the meat: open/play/close */
+ao_device_t *ao_open(int driver_id, uint_32 bits, uint_32 rate, uint_32 channels, ao_option_t *options);
+void ao_play(ao_device_t *device, void* output_samples, uint_32 num_bytes);
+void ao_close(ao_device_t *device);
-void ao_free_options (ao_option_t* options);
+/* misc functions */
+int ao_is_big_endian(void);
-int ao_is_big_endian();
+#endif /* __AO_H__ */
diff --git a/include/ao/os_types.h.in b/include/ao/os_types.h.in
index bb2378b..3907c7c 100644
--- a/include/ao/os_types.h.in
+++ b/include/ao/os_types.h.in
@@ -1,11 +1,11 @@
/*
*
- * config.h
+ * 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 library. See
+ * 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
diff --git a/src/Makefile.am b/src/Makefile.am
index 9a9034e..e12d5a0 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,17 +1,15 @@
## Process this file with automake to produce Makefile.in
AUTOMAKE_OPTIONS = foreign
+SUBDIRS = plugins
INCLUDES = -I$(top_srcdir) -I$(top_srcdir)/include
lib_LTLIBRARIES = libao.la
-#libao_la_SOURCES = audio_out.c @LIBAO_FILES@
-libao_la_SOURCES = audio_out.c ao_oss.c ao_wav.c ao_null.c
+libao_la_SOURCES = audio_out.c ao_wav.c ao_null.c
libao_la_LDFLAGS = -version-info @LIB_CURRENT@:@LIB_REVISION@:@LIB_AGE@
-EXTRA_libao_la_SOURCES = ao_alsa.c ao_irix.c ao_oss.c ao_wav.c ao_esd.c ao_null.c ao_solaris.c audio_out.c
-
debug:
$(MAKE) all CFLAGS="@DEBUG@"
diff --git a/src/ao_null.c b/src/ao_null.c
index e7d1ccf..1ffe6b7 100644
--- a/src/ao_null.c
+++ b/src/ao_null.c
@@ -5,7 +5,7 @@
* Original Copyright (C) Aaron Holtzman - May 1999
* Modifications Copyright (C) Stan Seibert - July 2000
*
- * This file is part of libao, a cross-platform library. See
+ * 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
@@ -27,59 +27,55 @@
#include <stdio.h>
#include <ao/ao.h>
-typedef struct ao_null_internal_s
-{
+typedef struct ao_null_internal_s {
unsigned long byte_counter;
} ao_null_internal_t;
-static ao_info_t ao_null_info =
-{
+static ao_info_t ao_null_info = {
"Null output",
"null",
"Aaron Holtzman <aholtzma@ess.engr.uvic.ca>",
- ""
+ "This plugin does nothing"
};
-static ao_internal_t*
-ao_null_open (uint_32 bits, uint_32 rate, uint_32 channels, ao_option_t *options)
+static ao_internal_t *ao_null_open(uint_32 bits, uint_32 rate, uint_32 channels, ao_option_t *options)
{
ao_null_internal_t *state;
state = malloc(sizeof(ao_null_internal_t));
- if (state != NULL)
- {
+ if (state != NULL) {
state->byte_counter = 0;
return state;
- }
- else
+ } else {
return NULL;
+ }
+
+ return NULL;
}
-static void
-ao_null_close (ao_internal_t *state)
+static void ao_null_close(ao_internal_t *state)
{
+ /* why would we print in a lib :)
fprintf(stderr, "ao_null: %ld bytes sent to null device.\n",
((ao_null_internal_t *) state)->byte_counter);
+ */
+ if (state) free(state);
}
-static void
-ao_null_play (ao_internal_t *state, void* output_samples, uint_32 num_bytes)
+static void ao_null_play(ao_internal_t *state, void* output_samples, uint_32 num_bytes)
{
- ((ao_null_internal_t *) state)->byte_counter += num_bytes;
+ ((ao_null_internal_t *)state)->byte_counter += num_bytes;
}
-static ao_info_t*
-ao_null_get_driver_info (void)
+static ao_info_t *ao_null_get_driver_info(void)
{
return &ao_null_info;
}
-ao_functions_t ao_null =
-{
+ao_functions_t ao_null = {
ao_null_get_driver_info,
ao_null_open,
ao_null_play,
ao_null_close
};
-
diff --git a/src/ao_wav.c b/src/ao_wav.c
index 0d2167b..97af8bd 100644
--- a/src/ao_wav.c
+++ b/src/ao_wav.c
@@ -5,7 +5,7 @@
* Original Copyright (C) Aaron Holtzman - May 1999
* Modifications Copyright (C) Stan Seibert - July 2000
*
- * This file is part of libao, a cross-platform library. See
+ * 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
@@ -31,7 +31,6 @@
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
-
#include <ao/ao.h>
#define WAVE_FORMAT_PCM 0x0001
@@ -51,11 +50,10 @@
#define DEFAULT_SWAP_BUFFER_SIZE 2048
-struct riff_struct
-{
- unsigned char id[4]; /* RIFF */
- unsigned int len;
- unsigned char wave_id[4]; /* WAVE */
+struct riff_struct {
+ unsigned char id[4]; /* RIFF */
+ unsigned int len;
+ unsigned char wave_id[4]; /* WAVE */
};
@@ -89,7 +87,7 @@ static ao_info_t ao_wav_info =
"WAV file output",
"wav",
"Aaron Holtzman <aholtzma@ess.engr.uvic.ca>",
- ""
+ "Sends output to a .wav file"
};
typedef struct ao_wav_internal_s
@@ -118,13 +116,11 @@ static void (*old_sig)(int);
static void signal_handler(int sig);
-static void
-ao_wav_parse_options(ao_wav_internal_t *state, ao_option_t *options)
+static void ao_wav_parse_options(ao_wav_internal_t *state, ao_option_t *options)
{
state->output_file = NULL;
- while (options)
- {
+ while (options) {
if (!strcmp(options->key, "file"))
state->output_file = strdup(options->value);
@@ -135,8 +131,7 @@ ao_wav_parse_options(ao_wav_internal_t *state, ao_option_t *options)
state->output_file = strdup("output.wav");
}
-static ao_internal_t*
-ao_wav_open(uint_32 bits, uint_32 rate, uint_32 channels, ao_option_t *options)
+static ao_internal_t *ao_wav_open(uint_32 bits, uint_32 rate, uint_32 channels, ao_option_t *options)
{
ao_wav_internal_t *state;
unsigned char buf[WAV_HEADER_LEN];
@@ -144,8 +139,7 @@ ao_wav_open(uint_32 bits, uint_32 rate, uint_32 channels, ao_option_t *options)
memset(buf, 0, WAV_HEADER_LEN);
state = malloc(sizeof(ao_wav_internal_t));
- if (state == NULL)
- {
+ if (state == NULL) {
fprintf(stderr, "ao_wav: Could not allocate state memory.\n");
goto ERR;
}
@@ -153,13 +147,11 @@ ao_wav_open(uint_32 bits, uint_32 rate, uint_32 channels, ao_option_t *options)
// Grab options here
ao_wav_parse_options(state, options);
state->byte_swap = (bits == 16) && (ao_is_big_endian());
- if (state->byte_swap)
- {
+ if (state->byte_swap) {
state->buffer_size = DEFAULT_SWAP_BUFFER_SIZE;
state->swap_buffer = calloc(sizeof(char), state->buffer_size);
- if (state->swap_buffer == NULL)
- {
+ if (state->swap_buffer == NULL) {
fprintf(stderr, "ao_wav: Could not allocate byte-swapping buffer.\n");
goto ERR;
}
@@ -167,8 +159,7 @@ ao_wav_open(uint_32 bits, uint_32 rate, uint_32 channels, ao_option_t *options)
state->fd=open(state->output_file,O_WRONLY | O_TRUNC | O_CREAT, 0644);
- if(state->fd < 0)
- {
+ if(state->fd < 0) {
fprintf(stderr,"%s: Opening audio output %s\n", strerror(errno), state->output_file);
goto ERR;
}
@@ -181,21 +172,17 @@ ao_wav_open(uint_32 bits, uint_32 rate, uint_32 channels, ao_option_t *options)
state->wave.common.wBitsPerSample = bits;
state->wave.common.dwSamplesPerSec = rate;
- if (write(state->fd, buf, WAV_HEADER_LEN) != WAV_HEADER_LEN)
- {
+ if (write(state->fd, buf, WAV_HEADER_LEN) != WAV_HEADER_LEN) {
fprintf(stderr,"failed to write wav-header: %s\n", strerror(errno));
goto ERR;
}
- if (last == NULL)
- {
+ if (last == NULL) {
// Empty list, install our signal handler only once
old_sig = signal(SIGINT,signal_handler);
last = states = malloc(sizeof(ao_wav_state_list_t));
- }
- else
- {
+ } else {
last->next = malloc(sizeof(ao_wav_state_list_t));
last = last->next;
}
@@ -205,7 +192,6 @@ ao_wav_open(uint_32 bits, uint_32 rate, uint_32 channels, ao_option_t *options)
return state;
-
ERR:
if(state->fd >= 0) { close(state->fd); }
return NULL;
@@ -215,44 +201,39 @@ ERR:
/*
* play the sample to the already opened file descriptor
*/
-static void
-ao_wav_play(ao_internal_t *state, void *output_samples, uint_32 num_bytes)
+static void ao_wav_play(ao_internal_t *state, void *output_samples, uint_32 num_bytes)
{
int i;
- ao_wav_internal_t *s = (ao_wav_internal_t *) state;
+ ao_wav_internal_t *s = (ao_wav_internal_t *)state;
/* Swap all of the bytes if things are not little_endian */
- if (s->byte_swap)
- {
+ if (s->byte_swap) {
/* Resize buffer larger if needed */
- if (num_bytes > s->buffer_size)
- {
+ if (num_bytes > s->buffer_size) {
s->swap_buffer = realloc(s->swap_buffer, sizeof(char)*num_bytes);
if (s->swap_buffer == NULL) {
fprintf(stderr, "ao_wav: Could not resize swap buffer.\n");
return;
- }
- else
+ } else {
s->buffer_size = num_bytes;
+ }
}
/* Swap the bytes into the swap buffer (so we don't
mess up the output_samples buffer) */
- for(i = 0; i < num_bytes/2; i+=2)
- {
+ for(i = 0; i < num_bytes/2; i+=2) {
s->swap_buffer[i] = ((char *) output_samples)[i+1];
s->swap_buffer[i+1] = ((char *) output_samples)[i];
}
write(s->fd, s->swap_buffer, num_bytes );
- }
- else /* Otherwise just write the output buffer directly */
+ } else {
+ /* Otherwise just write the output buffer directly */
write(s->fd, output_samples, num_bytes );
+ }
}
-
-static void
-ao_wav_close(ao_internal_t *state)
+static void ao_wav_close(ao_internal_t *state)
{
unsigned char buf[WAV_HEADER_LEN];
@@ -263,20 +244,18 @@ ao_wav_close(ao_internal_t *state)
/* Find how long our file is in total, including header */
size = lseek(s->fd, 0, SEEK_CUR);
- if (size < 0)
- {
+ if (size < 0) {
fprintf(stderr,"lseek failed - wav-header is corrupt\n");
goto ERR;
}
- /* Rewind file */
- if (lseek(s->fd, 0, SEEK_SET) < 0)
- {
+ /* Rewind file */
+ if (lseek(s->fd, 0, SEEK_SET) < 0) {
fprintf(stderr,"rewind failed - wav-header is corrupt\n");
goto ERR;
}
- // Fill out our wav-header with some information.
+ /* Fill out our wav-header with some information. */
strncpy(s->wave.riff.id, "RIFF",4);
s->wave.riff.len = size - 8;
@@ -311,8 +290,7 @@ ao_wav_close(ao_internal_t *state)
strncpy(buf+36, s->wave.data.id, 4);
WRITE_U32(buf+40, s->wave.data.len);
- if (write(s->fd, buf, WAV_HEADER_LEN) < WAV_HEADER_LEN)
- {
+ if (write(s->fd, buf, WAV_HEADER_LEN) < WAV_HEADER_LEN) {
fprintf(stderr,"wav-header write failed -- file is corrupt\n");
goto ERR;
}
@@ -322,20 +300,17 @@ ERR:
free(s);
}
-static ao_info_t*
-ao_wav_get_driver_info(void)
+static ao_info_t *ao_wav_get_driver_info(void)
{
return &ao_wav_info;
}
-static
-void signal_handler(int sig)
+static void signal_handler(int sig)
{
ao_wav_state_list_t *temp = states;
- while (states)
- {
+ while (states) {
ao_wav_close(states->state);
temp = states;
states = states->next;
diff --git a/src/audio_out.c b/src/audio_out.c
index 4812cd8..93395e6 100644
--- a/src/audio_out.c
+++ b/src/audio_out.c
@@ -5,7 +5,7 @@
* Original Copyright (C) Aaron Holtzman - May 1999
* Modifications Copyright (C) Stan Seibert - July 2000
*
- * This file is part of libao, a cross-platform library. See
+ * 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
@@ -27,113 +27,154 @@
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
-#include <assert.h>
+#include <dlfcn.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <dirent.h>
#include <ao/ao.h>
-/* --- Function Tables --- */
-
-extern ao_functions_t ao_null;
-
-/* Okay, so this is messy. I'm open to ideas of how to clean this
- up. - Stan */
-
-#ifdef AO_COMPILE_OSS
-extern ao_functions_t ao_oss;
-#define AO_FUNC_OSS &ao_oss
-#else
-#define AO_FUNC_OSS NULL
-#endif
-
-#ifdef AO_COMPILE_IRIX
-extern ao_functions_t ao_irix;
-#define AO_FUNC_IRIX &ao_irix
-#else
-#define AO_FUNC_IRIX NULL
-#endif
-
-#ifdef AO_COMPILE_SOLARIS
-extern ao_functions_t ao_solaris;
-#define AO_FUNC_SOLARIS &ao_solaris
-#else
-#define AO_FUNC_SOLARIS NULL
+/* These should have been set by the Makefile */
+#ifndef AO_DEFAULT
+#define AO_DEFAULT AO_NULL
#endif
-
-#ifdef AO_COMPILE_WIN32
-extern ao_functions_t ao_win32;
-#define AO_FUNC_WIN32 &ao_win32
-#else
-#define AO_FUNC_WIN32 NULL
+#ifndef AO_PLUGIN_PATH
+#define AO_PLUGIN_PATH "/usr/local/lib/ao"
#endif
-
-#ifdef AO_COMPILE_BEOS
-extern ao_functions_t ao_beos;
-#define AO_FUNC_BEOS &ao_beos
-#else
-#define AO_FUNC_BEOS NULL
+#ifndef SHARED_LIB_EXT
+#define SHARED_LIB_EXT ".so"
#endif
-#ifdef AO_COMPILE_ESD
-extern ao_functions_t ao_esd;
-#define AO_FUNC_ESD &ao_esd
-#else
-#define AO_FUNC_ESD NULL
-#endif
+/* --- Driver Table --- */
-#ifdef AO_COMPILE_ALSA
-extern ao_functions_t ao_alsa;
-#define AO_FUNC_ALSA &ao_alsa
-#else
-#define AO_FUNC_ALSA NULL
-#endif
+typedef struct driver_tree_s {
+ ao_functions_t *functions;
+ void *handle;
+ struct driver_tree_s *next;
+} driver_tree_t;
+extern ao_functions_t ao_null;
extern ao_functions_t ao_wav;
+driver_tree_t *driver_head = NULL;
+driver_tree_t *_get_plugin(char *plugin_file)
+{
+ driver_tree_t *dt;
+ void *handle;
+
+ handle = dlopen(plugin_file, RTLD_NOW);
+ if (handle) {
+ dt = (driver_tree_t *)malloc(sizeof(driver_tree_t));
+ if (!dt) return NULL;
-/* --- Driver Table --- */
+ dt->handle = handle;
+
+ dt->functions = (ao_functions_t *)malloc(sizeof(ao_functions_t));
+ if (!(dt->functions)) {
+ free(dt);
+ return NULL;
+ }
-ao_functions_t* ao_drivers[AO_DRIVERS] =
-{
- &ao_null, /* 0: Null Device */
- AO_FUNC_OSS, /* 1: Linux, *BSD */
- AO_FUNC_IRIX, /* 2: IRIX */
- AO_FUNC_SOLARIS, /* 3: Solaris */
- AO_FUNC_WIN32, /* 4: Win32 */
- AO_FUNC_BEOS, /* 5: BeOS */
- AO_FUNC_ESD, /* 6: EsounD */
- AO_FUNC_ALSA, /* 7: ALSA */
- NULL, /* 8: Unassigned */
- NULL, /* 9: Unassigned */
- &ao_wav, /* 10: .WAV output */
- NULL, /* 11: RAW output */
-};
+ dt->functions->get_driver_info = dlsym(dt->handle, "get_driver_info");
+ if (dlerror()) { free(dt->functions); free(dt); return NULL; }
+ dt->functions->open = dlsym(dt->handle, "open");
+ if (dlerror()) { free(dt->functions); free(dt); return NULL; }
+ dt->functions->play = dlsym(dt->handle, "play");
+ if (dlerror()) { free(dt->functions); free(dt); return NULL; }
+ dt->functions->close = dlsym(dt->handle, "close");
+ if (dlerror()) { free(dt->functions); free(dt); return NULL; }
+ } else {
+ return NULL;
+ }
+ return dt;
+}
+void ao_initialize(void)
+{
+ driver_tree_t *dnull;
+ driver_tree_t *dwav;
+ driver_tree_t *plugin;
+ driver_tree_t *driver;
+ DIR *plugindir;
+ struct dirent *plugin_dirent;
+ char *ext;
+ struct stat statbuf;
+ void *plughand;
+ char fullpath[NAME_MAX];
+
+ if (driver_head == NULL) {
+ /* insert the null and wav drivers into the tree */
+ dnull = (driver_tree_t *)malloc(sizeof(driver_tree_t));
+ dnull->functions = &ao_null;
+ dnull->handle = NULL;
+ dwav = (driver_tree_t *)malloc(sizeof(driver_tree_t));
+ dwav->functions = &ao_wav;
+ dwav->handle = NULL;
+
+ dnull->next = dwav;
+ dwav->next = NULL;
+
+ driver_head = dnull;
+ driver = dwav;
+
+ /* now insert any plugins we find */
+ plugindir = opendir(AO_PLUGIN_PATH);
+ if (plugindir != NULL) {
+ while ((plugin_dirent = readdir(plugindir)) != NULL) {
+ snprintf(fullpath, NAME_MAX, "%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;
+ }
+ }
+ }
+ }
+
+ closedir(plugindir);
+ }
+ }
+}
-/* --- Driver Functions --- */
+void ao_shutdown(void)
+{
+ driver_tree_t *driver = driver_head;
+ driver_tree_t *next_driver;
+
+ if (!driver_head) return;
+
+ /* unload and free all the plugins */
+ driver = driver->next->next;
+ while (driver) {
+ if (driver->functions) free(driver->functions);
+ if (driver->handle) dlclose(driver->handle);
+ next_driver = driver->next;
+ free(driver);
+ driver = next_driver;
+ }
-/* This should have been set by the Makefile */
-#ifndef AO_DEFAULT
-#define AO_DEFAULT AO_NULL
-#endif
+ /* free the standard drivers */
+ if (driver_head->next) free(driver_head->next);
+ if (driver_head->next) free(driver_head);
+}
-int ao_get_driver_id (const char *short_name)
+int ao_get_driver_id(const char *short_name)
{
int i;
+ driver_tree_t *driver = driver_head;
- if (short_name == NULL)
- return AO_DEFAULT;
- else
- {
+ if (short_name == NULL) {
+ return AO_NULL;
+ } else {
i = 0;
- while (i < AO_DRIVERS)
- {
- /* Skip empty driver slots */
- if (ao_drivers[i] != NULL
- && !strcmp(short_name,
- ao_drivers[i]->get_driver_info()->short_name))
+ while (driver) {
+ if (strcmp(short_name, driver->functions->get_driver_info()->short_name) == 0)
return i;
-
+ driver = driver->next;
i++;
}
@@ -141,17 +182,47 @@ int ao_get_driver_id (const char *short_name)
}
}
+driver_tree_t *_get_driver(int driver_id) {
+ int i = 0;
+ driver_tree_t *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;
+}
-int ao_check_driver_id (int driver_id)
+int _check_driver_id(int driver_id)
{
- return driver_id >= 0 && driver_id < AO_DRIVERS &&
- ao_drivers[driver_id] != NULL;
+ int i = 0;
+ driver_tree_t *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;
}
-ao_info_t *ao_get_driver_info (int driver_id)
+ao_info_t *ao_get_driver_info(int driver_id)
{
- if (ao_check_driver_id(driver_id))
- return ao_drivers[driver_id]->get_driver_info();
+ driver_tree_t *driver;
+
+ if (driver = _get_driver(driver_id))
+ return driver->functions->get_driver_info();
else
return NULL;
}
@@ -160,19 +231,17 @@ ao_info_t *ao_get_driver_info (int driver_id)
/* -- Audio Functions --- */
-ao_device_t* ao_open (int driver_id, uint_32 bits, uint_32 rate, uint_32 channels,
- ao_option_t *options)
+ao_device_t* ao_open(int driver_id, uint_32 bits, uint_32 rate, uint_32 channels, ao_option_t *options)
{
ao_functions_t *funcs;
ao_internal_t *state;
ao_device_t *device;
+ driver_tree_t *driver = driver_head;
- if (ao_check_driver_id(driver_id))
- {
- funcs = ao_drivers[driver_id];
+ if (driver = _get_driver(driver_id)) {
+ funcs = driver->functions;
state = funcs->open(bits, rate, channels, options);
- if (state != NULL)
- {
+ if (state != NULL) {
device = malloc(sizeof(ao_device_t));
device->funcs = funcs;
device->state = state;
@@ -183,14 +252,13 @@ ao_device_t* ao_open (int driver_id, uint_32 bits, uint_32 rate, uint_32 channel
return NULL;
}
-void ao_play (ao_device_t *device, void* output_samples, uint_32 num_bytes)
+void ao_play(ao_device_t *device, void* output_samples, uint_32 num_bytes)
{
- device->funcs->play(device->state, output_samples,
- num_bytes);
+ device->funcs->play(device->state, output_samples, num_bytes);
}
-void ao_close (ao_device_t *device)
+void ao_close(ao_device_t *device)
{
device->funcs->close(device->state);
free(device);
@@ -200,7 +268,7 @@ void ao_close (ao_device_t *device)
/* --- Option Functions --- */
-ao_option_t* ao_parse_option (const char* op_str)
+ao_option_t* _parse_option(const char* op_str)
{
char *copy;
char *value_ptr;
@@ -210,15 +278,13 @@ ao_option_t* ao_parse_option (const char* op_str)
copy = strdup(op_str);
colon = strchr(copy, ':');
- if (colon != NULL)
- {
+ if (colon != NULL) {
value_ptr = colon + 1;
*colon = 0x00; // Null terminate the key part
- // Allocate the option structure
+ /* Allocate the option structure */
op = malloc(sizeof(ao_option_t));
- if (op != NULL)
- {
+ if (op != NULL) {
op->key = strdup(copy);
op->value = strdup(value_ptr);
op->next = NULL;
@@ -230,25 +296,20 @@ ao_option_t* ao_parse_option (const char* op_str)
}
-int ao_append_option (ao_option_t **options, const char *op_str)
+int ao_append_option(ao_option_t **options, const char *op_str)
{
ao_option_t *temp;
- temp = ao_parse_option(op_str);
+ temp = _parse_option(op_str);
if (temp == NULL)
return 0; //Bad option format
- if (*options != NULL)
- {
+ if (*options != NULL) {
while ((*options)->next != NULL)
- {
*options = (*options)->next;
- }
(*options)->next = temp;
- }
- else
- {
+ } else {
*options = temp;
}
@@ -256,12 +317,11 @@ int ao_append_option (ao_option_t **options, const char *op_str)
}
-void ao_free_options (ao_option_t* options)
+void ao_free_options(ao_option_t *options)
{
ao_option_t *rest;
- while (options != NULL)
- {
+ while (options != NULL) {
rest = options->next;
free(options->key);
free(options->value);
@@ -270,12 +330,12 @@ void ao_free_options (ao_option_t* options)
}
}
-/* Helper function lifted from lib/vorbisfile.c */
-int ao_is_big_endian() {
+/* Helper function lifted from Vorbis' lib/vorbisfile.c */
+int ao_is_big_endian(void)
+{
uint_16 pattern = 0xbabe;
unsigned char *bytewise = (unsigned char *)&pattern;
+
if (bytewise[0] == 0xba) return 1;
-
- assert(bytewise[0] == 0xbe);
return 0;
}
diff --git a/src/plugins/Makefile.am b/src/plugins/Makefile.am
new file mode 100644
index 0000000..8d2b180
--- /dev/null
+++ b/src/plugins/Makefile.am
@@ -0,0 +1,4 @@
+## Process this file with automake to produce Makefile.in
+
+AUTOMAKE_OPTIONS = foreign
+SUBDIRS = oss esd alsa # solaris irix
diff --git a/src/plugins/alsa/Makefile.am b/src/plugins/alsa/Makefile.am
new file mode 100644
index 0000000..5485bf8
--- /dev/null
+++ b/src/plugins/alsa/Makefile.am
@@ -0,0 +1,27 @@
+## Process this file with automake to produce Makefile.in
+
+AUTOMAKE_OPTIONS = foreign
+
+if HAVE_ALSA
+
+alsaltlibs = libalsa.la
+alsaldflags = -export-dynamic -avoid-version
+alsasources = ao_alsa.c
+
+else
+
+alsaltlibs =
+alsaldflags =
+alsasources =
+
+endif
+
+INCLUDES = -I$(top_srcdir) -I$(top_srcdir)/include
+
+libdir = $(plugindir)
+lib_LTLIBRARIES = $(alsaltlibs)
+
+libalsa_la_LDFLAGS = $(alsaldflags)
+libalsa_la_SOURCES = $(alsasources)
+
+EXTRA_DIST = ao_alsa.c
diff --git a/src/ao_alsa.c b/src/plugins/alsa/ao_alsa.c
similarity index 100%
rename from src/ao_alsa.c
rename to src/plugins/alsa/ao_alsa.c
diff --git a/src/plugins/esd/Makefile.am b/src/plugins/esd/Makefile.am
new file mode 100644
index 0000000..ab1a567
--- /dev/null
+++ b/src/plugins/esd/Makefile.am
@@ -0,0 +1,28 @@
+## Process this file with automake to produce Makefile.in
+
+AUTOMAKE_OPTIONS = foreign
+
+if HAVE_ESD
+
+esdltlibs = libesd.la
+esdldflags = -export-dynamic -avoid-version
+esdsources = ao_esd.c
+
+else
+
+esdltlibs =
+esdldflags =
+esdsources =
+
+endif
+
+INCLUDES = -I$(top_srcdir) -I$(top_srcdir)/include @ESD_CFLAGS@
+
+libdir = $(plugindir)
+lib_LTLIBRARIES = $(esdltlibs)
+
+libesd_la_LDFLAGS = $(esdldflags)
+libesd_la_LIBADD = @ESD_LIBS@
+libesd_la_SOURCES = $(esdsources)
+
+EXTRA_DIST = ao_esd.c
diff --git a/src/ao_esd.c b/src/plugins/esd/ao_esd.c
similarity index 99%
rename from src/ao_esd.c
rename to src/plugins/esd/ao_esd.c
index 0e3b66d..fad7193 100644
--- a/src/ao_esd.c
+++ b/src/plugins/esd/ao_esd.c
@@ -31,7 +31,7 @@
#include <string.h>
#include <esd.h>
-#include "audio_out.h"
+#include <ao/ao.h>
typedef struct ao_esd_internal_s
{
diff --git a/src/ao_irix.c b/src/plugins/irix/ao_irix.c
similarity index 100%
rename from src/ao_irix.c
rename to src/plugins/irix/ao_irix.c
diff --git a/src/plugins/oss/Makefile.am b/src/plugins/oss/Makefile.am
new file mode 100644
index 0000000..3703a23
--- /dev/null
+++ b/src/plugins/oss/Makefile.am
@@ -0,0 +1,27 @@
+## Process this file with automake to produce Makefile.in
+
+AUTOMAKE_OPTIONS = foreign
+
+if HAVE_OSS
+
+ossltlibs = liboss.la
+ossldflags = -export-dynamic -avoid-version
+osssources = ao_oss.c
+
+else
+
+ossltlibs =
+ossldflags =
+osssources =
+
+endif
+
+INCLUDES = -I$(top_srcdir) -I$(top_srcdir)/include
+
+libdir = $(plugindir)
+lib_LTLIBRARIES = $(ossltlibs)
+
+liboss_la_LDFLAGS = $(ossldflags)
+liboss_la_SOURCES = $(osssources)
+
+EXTRA_DIST = ao_oss.c
diff --git a/src/ao_oss.c b/src/plugins/oss/ao_oss.c
similarity index 100%
rename from src/ao_oss.c
rename to src/plugins/oss/ao_oss.c
diff --git a/src/ao_solaris.c b/src/plugins/solaris/ao_solaris.c
similarity index 100%
rename from src/ao_solaris.c
rename to src/plugins/solaris/ao_solaris.c
--
GitLab