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-rwxr-xr-xsys/osxaudio/Makefile.am37
-rwxr-xr-xsys/osxaudio/Makefile.in971
-rwxr-xr-xsys/osxaudio/gstosxaudio.c53
-rwxr-xr-xsys/osxaudio/gstosxaudioelement.c92
-rwxr-xr-xsys/osxaudio/gstosxaudioelement.h92
-rwxr-xr-xsys/osxaudio/gstosxaudioringbuffer.c313
-rwxr-xr-xsys/osxaudio/gstosxaudioringbuffer.h98
-rwxr-xr-xsys/osxaudio/gstosxaudiosink.c656
-rwxr-xr-xsys/osxaudio/gstosxaudiosink.h98
-rwxr-xr-xsys/osxaudio/gstosxaudiosrc.c334
-rwxr-xr-xsys/osxaudio/gstosxaudiosrc.h83
-rwxr-xr-xsys/osxaudio/gstosxcoreaudio.c221
-rwxr-xr-xsys/osxaudio/gstosxcoreaudio.h151
-rwxr-xr-xsys/osxaudio/gstosxcoreaudiocommon.c430
-rwxr-xr-xsys/osxaudio/gstosxcoreaudiocommon.h65
-rwxr-xr-xsys/osxaudio/gstosxcoreaudiohal.c1254
-rwxr-xr-xsys/osxaudio/gstosxcoreaudioremoteio.c126
17 files changed, 5074 insertions, 0 deletions
diff --git a/sys/osxaudio/Makefile.am b/sys/osxaudio/Makefile.am
new file mode 100755
index 0000000..12b7d03
--- /dev/null
+++ b/sys/osxaudio/Makefile.am
@@ -0,0 +1,37 @@
+plugin_LTLIBRARIES = libgstosxaudio.la
+
+libgstosxaudio_la_SOURCES = gstosxaudioringbuffer.c \
+ gstosxaudioelement.c \
+ gstosxaudiosink.c \
+ gstosxaudiosrc.c \
+ gstosxcoreaudiocommon.c \
+ gstosxcoreaudio.c \
+ gstosxaudio.c
+
+libgstosxaudio_la_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_CFLAGS) \
+ -Wno-deprecated-declarations
+libgstosxaudio_la_LIBADD = \
+ -lgstaudio-@GST_API_VERSION@ \
+ $(GST_PLUGINS_BASE_LIBS) \
+ $(GST_BASE_LIBS) \
+ $(GST_LIBS)
+
+libgstosxaudio_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) -Wl,-framework,CoreAudio -Wl,-framework,AudioToolbox
+
+if !HAVE_IOS
+libgstosxaudio_la_LDFLAGS += -Wl,-framework,AudioUnit -Wl,-framework,CoreServices
+endif
+
+libgstosxaudio_la_LIBTOOLFLAGS = $(GST_PLUGIN_LIBTOOLFLAGS) --tag=CC
+
+noinst_HEADERS = gstosxaudiosink.h \
+ gstosxaudioelement.h \
+ gstosxaudioringbuffer.h \
+ gstosxaudiosrc.h \
+ gstosxcoreaudiocommon.h \
+ gstosxcoreaudio.h \
+ gstosxcoreaudiohal.c \
+ gstosxcoreaudioremoteio.c
+
+
+
diff --git a/sys/osxaudio/Makefile.in b/sys/osxaudio/Makefile.in
new file mode 100755
index 0000000..25d02ac
--- /dev/null
+++ b/sys/osxaudio/Makefile.in
@@ -0,0 +1,971 @@
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+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
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+# with or without modifications, as long as this notice is preserved.
+
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+
+libgstosxaudio_la-gstosxcoreaudio.lo: gstosxcoreaudio.c
+@am__fastdepCC_TRUE@ $(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(libgstosxaudio_la_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(libgstosxaudio_la_CFLAGS) $(CFLAGS) -MT libgstosxaudio_la-gstosxcoreaudio.lo -MD -MP -MF $(DEPDIR)/libgstosxaudio_la-gstosxcoreaudio.Tpo -c -o libgstosxaudio_la-gstosxcoreaudio.lo `test -f 'gstosxcoreaudio.c' || echo '$(srcdir)/'`gstosxcoreaudio.c
+@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) $(DEPDIR)/libgstosxaudio_la-gstosxcoreaudio.Tpo $(DEPDIR)/libgstosxaudio_la-gstosxcoreaudio.Plo
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+
+libgstosxaudio_la-gstosxaudio.lo: gstosxaudio.c
+@am__fastdepCC_TRUE@ $(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(libgstosxaudio_la_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(libgstosxaudio_la_CFLAGS) $(CFLAGS) -MT libgstosxaudio_la-gstosxaudio.lo -MD -MP -MF $(DEPDIR)/libgstosxaudio_la-gstosxaudio.Tpo -c -o libgstosxaudio_la-gstosxaudio.lo `test -f 'gstosxaudio.c' || echo '$(srcdir)/'`gstosxaudio.c
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+@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='gstosxaudio.c' object='libgstosxaudio_la-gstosxaudio.lo' libtool=yes @AMDEPBACKSLASH@
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+
+mostlyclean-libtool:
+ -rm -f *.lo
+
+clean-libtool:
+ -rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+ $(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+ set x; \
+ here=`pwd`; \
+ $(am__define_uniq_tagged_files); \
+ shift; \
+ if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+ test -n "$$unique" || unique=$$empty_fix; \
+ if test $$# -gt 0; then \
+ $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+ "$$@" $$unique; \
+ else \
+ $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+ $$unique; \
+ fi; \
+ fi
+ctags: ctags-am
+
+CTAGS: ctags
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+ $(am__define_uniq_tagged_files); \
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+GTAGS:
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+ && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
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+ list='$(am__tagged_files)'; \
+ case "$(srcdir)" in \
+ [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+ *) sdir=$(subdir)/$(srcdir) ;; \
+ esac; \
+ for i in $$list; do \
+ if test -f "$$i"; then \
+ echo "$(subdir)/$$i"; \
+ else \
+ echo "$$sdir/$$i"; \
+ fi; \
+ done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+ -rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(DISTFILES)
+ @srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+ topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+ list='$(DISTFILES)'; \
+ dist_files=`for file in $$list; do echo $$file; done | \
+ sed -e "s|^$$srcdirstrip/||;t" \
+ -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
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+ */*) $(MKDIR_P) `echo "$$dist_files" | \
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+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+ if test -d "$(distdir)/$$file"; then \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+ else \
+ test -f "$(distdir)/$$file" \
+ || cp -p $$d/$$file "$(distdir)/$$file" \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES) $(HEADERS)
+installdirs:
+ for dir in "$(DESTDIR)$(plugindir)"; do \
+ test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+ done
+install: install-am
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+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
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+installcheck: installcheck-am
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+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
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+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
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+clean-am: clean-generic clean-libtool clean-pluginLTLIBRARIES \
+ mostlyclean-am
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+ -rm -rf ./$(DEPDIR)
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+ distclean-tags
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+info: info-am
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+ uninstall-pluginLTLIBRARIES
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+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/sys/osxaudio/gstosxaudio.c b/sys/osxaudio/gstosxaudio.c
new file mode 100755
index 0000000..c48b03f
--- /dev/null
+++ b/sys/osxaudio/gstosxaudio.c
@@ -0,0 +1,53 @@
+/*
+ * GStreamer
+ * Copyright (C) 1999 Erik Walthinsen <omega@cse.ogi.edu>
+ * Copyright (C) 2007,2008 Pioneers of the Inevitable <songbird@songbirdnest.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ * The development of this code was made possible due to the involvement of
+ * Pioneers of the Inevitable, the creators of the Songbird Music player
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstosxaudioelement.h"
+#include "gstosxaudiosink.h"
+#include "gstosxaudiosrc.h"
+
+static gboolean
+plugin_init (GstPlugin * plugin)
+{
+ if (!gst_element_register (plugin, "osxaudiosink", GST_RANK_PRIMARY,
+ GST_TYPE_OSX_AUDIO_SINK)) {
+ return FALSE;
+ }
+ if (!gst_element_register (plugin, "osxaudiosrc", GST_RANK_PRIMARY,
+ GST_TYPE_OSX_AUDIO_SRC)) {
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ osxaudio,
+ "OSX (Mac OS X) audio support for GStreamer",
+ plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
diff --git a/sys/osxaudio/gstosxaudioelement.c b/sys/osxaudio/gstosxaudioelement.c
new file mode 100755
index 0000000..bec24d1
--- /dev/null
+++ b/sys/osxaudio/gstosxaudioelement.c
@@ -0,0 +1,92 @@
+/*
+ * GStreamer
+ * Copyright (C) 2006 Zaheer Abbas Merali <zaheerabbas at merali dot org>
+ * Copyright (C) 2007 Pioneers of the Inevitable <songbird@songbirdnest.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
+ * which case the following provisions apply instead of the ones
+ * mentioned above:
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ * The development of this code was made possible due to the involvement of
+ * Pioneers of the Inevitable, the creators of the Songbird Music player
+ *
+ */
+
+#include "gstosxaudioelement.h"
+#include <gst/gst.h>
+
+static void
+gst_osx_audio_element_interface_init (GstOsxAudioElementInterface * iface);
+
+GType
+gst_osx_audio_element_get_type (void)
+{
+ static GType gst_osxaudioelement_type = 0;
+
+ if (!gst_osxaudioelement_type) {
+ static const GTypeInfo gst_osxaudioelement_info = {
+ sizeof (GstOsxAudioElementInterface),
+ (GBaseInitFunc) gst_osx_audio_element_interface_init,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ 0,
+ 0,
+ NULL,
+ NULL
+ };
+
+ gst_osxaudioelement_type = g_type_register_static (G_TYPE_INTERFACE,
+ "GstOsxAudioElement", &gst_osxaudioelement_info, 0);
+ }
+
+ return gst_osxaudioelement_type;
+}
+
+static void
+gst_osx_audio_element_interface_init (GstOsxAudioElementInterface * iface)
+{
+ static gboolean initialized = FALSE;
+
+ if (!initialized) {
+ initialized = TRUE;
+ }
+
+ /* default virtual functions */
+ iface->io_proc = NULL;
+}
diff --git a/sys/osxaudio/gstosxaudioelement.h b/sys/osxaudio/gstosxaudioelement.h
new file mode 100755
index 0000000..3e09dc1
--- /dev/null
+++ b/sys/osxaudio/gstosxaudioelement.h
@@ -0,0 +1,92 @@
+/*
+ * GStreamer
+ * Copyright (C) 2006 Zaheer Abbas Merali <zaheerabbas at merali dot org>
+ * Copyright (C) 2007 Pioneers of the Inevitable <songbird@songbirdnest.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
+ * which case the following provisions apply instead of the ones
+ * mentioned above:
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ * The development of this code was made possible due to the involvement of
+ * Pioneers of the Inevitable, the creators of the Songbird Music player
+ *
+ */
+
+#ifndef __GST_OSX_AUDIO_ELEMENT_H__
+#define __GST_OSX_AUDIO_ELEMENT_H__
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <gst/gst.h>
+#ifdef HAVE_IOS
+#include <CoreAudio/CoreAudioTypes.h>
+#else
+#include <CoreAudio/CoreAudio.h>
+#endif
+#include <AudioUnit/AudioUnit.h>
+
+G_BEGIN_DECLS
+
+#define GST_OSX_AUDIO_ELEMENT_TYPE \
+ (gst_osx_audio_element_get_type())
+#define GST_OSX_AUDIO_ELEMENT(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_OSX_AUDIO_ELEMENT_TYPE,GstOsxAudioElementInterface))
+#define GST_IS_OSX_AUDIO_ELEMENT(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_OSX_AUDIO_ELEMENT_TYPE))
+#define GST_OSX_AUDIO_ELEMENT_GET_INTERFACE(inst) \
+ (G_TYPE_INSTANCE_GET_INTERFACE((inst),GST_OSX_AUDIO_ELEMENT_TYPE,GstOsxAudioElementInterface))
+
+typedef struct _GstOsxAudioElementInterface GstOsxAudioElementInterface;
+
+struct _GstOsxAudioElementInterface
+{
+ GTypeInterface parent;
+
+ OSStatus (*io_proc) (void * userdata,
+ AudioUnitRenderActionFlags * ioActionFlags,
+ const AudioTimeStamp * inTimeStamp,
+ UInt32 inBusNumber, UInt32 inNumberFrames,
+ AudioBufferList * bufferList);
+};
+
+GType gst_osx_audio_element_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_OSX_AUDIO_ELEMENT_H__ */
diff --git a/sys/osxaudio/gstosxaudioringbuffer.c b/sys/osxaudio/gstosxaudioringbuffer.c
new file mode 100755
index 0000000..14faa78
--- /dev/null
+++ b/sys/osxaudio/gstosxaudioringbuffer.c
@@ -0,0 +1,313 @@
+/*
+ * GStreamer
+ * Copyright (C) 2006 Zaheer Abbas Merali <zaheerabbas at merali dot org>
+ * Copyright (C) 2008 Pioneers of the Inevitable <songbird@songbirdnest.com>
+ * Copyright (C) 2012 Fluendo S.A. <support@fluendo.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
+ * which case the following provisions apply instead of the ones
+ * mentioned above:
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <gst/gst.h>
+#include <gst/audio/audio-channels.h>
+#include "gstosxaudioringbuffer.h"
+#include "gstosxaudiosink.h"
+#include "gstosxaudiosrc.h"
+
+#include <unistd.h> /* for getpid() */
+
+GST_DEBUG_CATEGORY_STATIC (osx_audio_debug);
+#define GST_CAT_DEFAULT osx_audio_debug
+
+#include "gstosxcoreaudio.h"
+
+static void gst_osx_audio_ring_buffer_dispose (GObject * object);
+static void gst_osx_audio_ring_buffer_finalize (GObject * object);
+static gboolean gst_osx_audio_ring_buffer_open_device (GstAudioRingBuffer *
+ buf);
+static gboolean gst_osx_audio_ring_buffer_close_device (GstAudioRingBuffer *
+ buf);
+
+static gboolean gst_osx_audio_ring_buffer_acquire (GstAudioRingBuffer * buf,
+ GstAudioRingBufferSpec * spec);
+static gboolean gst_osx_audio_ring_buffer_release (GstAudioRingBuffer * buf);
+
+static gboolean gst_osx_audio_ring_buffer_start (GstAudioRingBuffer * buf);
+static gboolean gst_osx_audio_ring_buffer_pause (GstAudioRingBuffer * buf);
+static gboolean gst_osx_audio_ring_buffer_stop (GstAudioRingBuffer * buf);
+static guint gst_osx_audio_ring_buffer_delay (GstAudioRingBuffer * buf);
+static GstAudioRingBufferClass *ring_parent_class = NULL;
+
+#define gst_osx_audio_ring_buffer_do_init \
+ GST_DEBUG_CATEGORY_INIT (osx_audio_debug, "osxaudio", 0, "OSX Audio Elements");
+
+G_DEFINE_TYPE_WITH_CODE (GstOsxAudioRingBuffer, gst_osx_audio_ring_buffer,
+ GST_TYPE_AUDIO_RING_BUFFER, gst_osx_audio_ring_buffer_do_init);
+
+static void
+gst_osx_audio_ring_buffer_class_init (GstOsxAudioRingBufferClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstAudioRingBufferClass *gstringbuffer_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstringbuffer_class = (GstAudioRingBufferClass *) klass;
+
+ ring_parent_class = g_type_class_peek_parent (klass);
+
+ gobject_class->dispose = gst_osx_audio_ring_buffer_dispose;
+ gobject_class->finalize = gst_osx_audio_ring_buffer_finalize;
+
+ gstringbuffer_class->open_device =
+ GST_DEBUG_FUNCPTR (gst_osx_audio_ring_buffer_open_device);
+ gstringbuffer_class->close_device =
+ GST_DEBUG_FUNCPTR (gst_osx_audio_ring_buffer_close_device);
+ gstringbuffer_class->acquire =
+ GST_DEBUG_FUNCPTR (gst_osx_audio_ring_buffer_acquire);
+ gstringbuffer_class->release =
+ GST_DEBUG_FUNCPTR (gst_osx_audio_ring_buffer_release);
+ gstringbuffer_class->start =
+ GST_DEBUG_FUNCPTR (gst_osx_audio_ring_buffer_start);
+ gstringbuffer_class->pause =
+ GST_DEBUG_FUNCPTR (gst_osx_audio_ring_buffer_pause);
+ gstringbuffer_class->resume =
+ GST_DEBUG_FUNCPTR (gst_osx_audio_ring_buffer_start);
+ gstringbuffer_class->stop =
+ GST_DEBUG_FUNCPTR (gst_osx_audio_ring_buffer_stop);
+ gstringbuffer_class->delay =
+ GST_DEBUG_FUNCPTR (gst_osx_audio_ring_buffer_delay);
+
+ GST_DEBUG ("osx audio ring buffer class init");
+}
+
+static void
+gst_osx_audio_ring_buffer_init (GstOsxAudioRingBuffer * ringbuffer)
+{
+ ringbuffer->core_audio = gst_core_audio_new (GST_OBJECT (ringbuffer));
+}
+
+static void
+gst_osx_audio_ring_buffer_dispose (GObject * object)
+{
+ GstOsxAudioRingBuffer *osxbuf;
+
+ osxbuf = GST_OSX_AUDIO_RING_BUFFER (object);
+
+ if (osxbuf->core_audio) {
+ g_object_unref (osxbuf->core_audio);
+ osxbuf->core_audio = NULL;
+ }
+ G_OBJECT_CLASS (ring_parent_class)->dispose (object);
+}
+
+static void
+gst_osx_audio_ring_buffer_finalize (GObject * object)
+{
+ G_OBJECT_CLASS (ring_parent_class)->finalize (object);
+}
+
+static gboolean
+gst_osx_audio_ring_buffer_open_device (GstAudioRingBuffer * buf)
+{
+ GstOsxAudioRingBuffer *osxbuf;
+
+ osxbuf = GST_OSX_AUDIO_RING_BUFFER (buf);
+
+ return gst_core_audio_open (osxbuf->core_audio);
+}
+
+static gboolean
+gst_osx_audio_ring_buffer_close_device (GstAudioRingBuffer * buf)
+{
+ GstOsxAudioRingBuffer *osxbuf;
+ osxbuf = GST_OSX_AUDIO_RING_BUFFER (buf);
+
+ return gst_core_audio_close (osxbuf->core_audio);
+}
+
+static gboolean
+gst_osx_audio_ring_buffer_acquire (GstAudioRingBuffer * buf,
+ GstAudioRingBufferSpec * spec)
+{
+ gboolean ret = FALSE, is_passthrough = FALSE;
+ GstOsxAudioRingBuffer *osxbuf;
+ AudioStreamBasicDescription format;
+
+ osxbuf = GST_OSX_AUDIO_RING_BUFFER (buf);
+
+ if (RINGBUFFER_IS_SPDIF (spec->type)) {
+ format.mFormatID = kAudioFormat60958AC3;
+ format.mSampleRate = (double) GST_AUDIO_INFO_RATE (&spec->info);
+ format.mChannelsPerFrame = 2;
+ format.mFormatFlags = kAudioFormatFlagIsSignedInteger |
+ kAudioFormatFlagIsPacked | kAudioFormatFlagIsNonMixable;
+ format.mBytesPerFrame = 0;
+ format.mBitsPerChannel = 16;
+ format.mBytesPerPacket = 6144;
+ format.mFramesPerPacket = 1536;
+ format.mReserved = 0;
+ spec->segsize = 6144;
+ spec->segtotal = 10;
+ is_passthrough = TRUE;
+ } else {
+ int width, depth;
+ /* Fill out the audio description we're going to be using */
+ format.mFormatID = kAudioFormatLinearPCM;
+ format.mSampleRate = (double) GST_AUDIO_INFO_RATE (&spec->info);
+ format.mChannelsPerFrame = GST_AUDIO_INFO_CHANNELS (&spec->info);
+ if (GST_AUDIO_INFO_IS_FLOAT (&spec->info)) {
+ format.mFormatFlags = kAudioFormatFlagsNativeFloatPacked;
+ width = depth = GST_AUDIO_INFO_WIDTH (&spec->info);
+ } else {
+ format.mFormatFlags = kAudioFormatFlagIsSignedInteger;
+ width = GST_AUDIO_INFO_WIDTH (&spec->info);
+ depth = GST_AUDIO_INFO_DEPTH (&spec->info);
+ if (width == depth) {
+ format.mFormatFlags |= kAudioFormatFlagIsPacked;
+ } else {
+ format.mFormatFlags |= kAudioFormatFlagIsAlignedHigh;
+ }
+ if (GST_AUDIO_INFO_IS_BIG_ENDIAN (&spec->info)) {
+ format.mFormatFlags |= kAudioFormatFlagIsBigEndian;
+ }
+ }
+ format.mBytesPerFrame = GST_AUDIO_INFO_BPF (&spec->info);
+ format.mBitsPerChannel = depth;
+ format.mBytesPerPacket = GST_AUDIO_INFO_BPF (&spec->info);
+ format.mFramesPerPacket = 1;
+ format.mReserved = 0;
+ spec->segsize =
+ (spec->latency_time * GST_AUDIO_INFO_RATE (&spec->info) /
+ G_USEC_PER_SEC) * GST_AUDIO_INFO_BPF (&spec->info);
+ spec->segtotal = spec->buffer_time / spec->latency_time;
+ is_passthrough = FALSE;
+ }
+
+ GST_DEBUG_OBJECT (osxbuf, "Format: " CORE_AUDIO_FORMAT,
+ CORE_AUDIO_FORMAT_ARGS (format));
+
+ if (GST_IS_OSX_AUDIO_SINK (GST_OBJECT_PARENT (buf))) {
+ gst_audio_ring_buffer_set_channel_positions (buf,
+ GST_OSX_AUDIO_SINK (GST_OBJECT_PARENT (buf))->channel_positions);
+ }
+
+ buf->size = spec->segtotal * spec->segsize;
+ buf->memory = g_malloc0 (buf->size);
+
+ ret = gst_core_audio_initialize (osxbuf->core_audio, format, spec->caps,
+ is_passthrough);
+
+ if (!ret) {
+ g_free (buf->memory);
+ buf->memory = NULL;
+ buf->size = 0;
+ }
+
+ osxbuf->segoffset = 0;
+
+ return ret;
+}
+
+static gboolean
+gst_osx_audio_ring_buffer_release (GstAudioRingBuffer * buf)
+{
+ GstOsxAudioRingBuffer *osxbuf;
+
+ osxbuf = GST_OSX_AUDIO_RING_BUFFER (buf);
+
+ gst_core_audio_unitialize (osxbuf->core_audio);
+
+ g_free (buf->memory);
+ buf->memory = NULL;
+ buf->size = 0;
+
+ return TRUE;
+}
+
+static gboolean
+gst_osx_audio_ring_buffer_start (GstAudioRingBuffer * buf)
+{
+ GstOsxAudioRingBuffer *osxbuf;
+
+ osxbuf = GST_OSX_AUDIO_RING_BUFFER (buf);
+
+ return gst_core_audio_start_processing (osxbuf->core_audio);
+}
+
+static gboolean
+gst_osx_audio_ring_buffer_pause (GstAudioRingBuffer * buf)
+{
+ GstOsxAudioRingBuffer *osxbuf = GST_OSX_AUDIO_RING_BUFFER (buf);
+
+ return gst_core_audio_pause_processing (osxbuf->core_audio);
+}
+
+
+static gboolean
+gst_osx_audio_ring_buffer_stop (GstAudioRingBuffer * buf)
+{
+ GstOsxAudioRingBuffer *osxbuf;
+
+ osxbuf = GST_OSX_AUDIO_RING_BUFFER (buf);
+
+ gst_core_audio_stop_processing (osxbuf->core_audio);
+
+ return TRUE;
+}
+
+static guint
+gst_osx_audio_ring_buffer_delay (GstAudioRingBuffer * buf)
+{
+ GstOsxAudioRingBuffer *osxbuf;
+ double latency;
+ guint samples;
+
+ osxbuf = GST_OSX_AUDIO_RING_BUFFER (buf);
+
+ if (!gst_core_audio_get_samples_and_latency (osxbuf->core_audio,
+ GST_AUDIO_INFO_RATE (&buf->spec.info), &samples, &latency)) {
+ return 0;
+ }
+ GST_DEBUG_OBJECT (buf, "Got latency: %f seconds -> %d samples",
+ latency, samples);
+ return samples;
+}
diff --git a/sys/osxaudio/gstosxaudioringbuffer.h b/sys/osxaudio/gstosxaudioringbuffer.h
new file mode 100755
index 0000000..5054fd3
--- /dev/null
+++ b/sys/osxaudio/gstosxaudioringbuffer.h
@@ -0,0 +1,98 @@
+/*
+ * GStreamer
+ * Copyright (C) 2006 Zaheer Abbas Merali <zaheerabbas at merali dot org>
+ * Copyright (C) 2012 Fluendo S.A. <support@fluendo.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
+ * which case the following provisions apply instead of the ones
+ * mentioned above:
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __GST_OSX_RING_BUFFER_H__
+#define __GST_OSX_RING_BUFFER_H__
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <gst/gst.h>
+#include <gst/audio/audio.h>
+#include <gst/audio/gstaudioringbuffer.h>
+#include <gstosxcoreaudio.h>
+
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_OSX_AUDIO_RING_BUFFER \
+ (gst_osx_audio_ring_buffer_get_type())
+#define GST_OSX_AUDIO_RING_BUFFER(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSX_AUDIO_RING_BUFFER,GstOsxAudioRingBuffer))
+#define GST_OSX_AUDIO_RING_BUFFER_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSX_AUDIO_RING_BUFFER,GstOsxAudioRingBufferClass))
+#define GST_OSX_AUDIO_RING_BUFFER_GET_CLASS(obj) \
+ (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_OSX_AUDIO_RING_BUFFER,GstOsxAudioRingBufferClass))
+#define GST_IS_OSX_AUDIO_RING_BUFFER(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSX_AUDIO_RING_BUFFER))
+#define GST_IS_OSX_AUDIO_RING_BUFFER_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSX_AUDIO_RING_BUFFER))
+
+#define RINGBUFFER_IS_SPDIF(t) ((t) == GST_AUDIO_RING_BUFFER_FORMAT_TYPE_AC3 || (t) == GST_AUDIO_RING_BUFFER_FORMAT_TYPE_DTS)
+
+typedef struct _GstOsxAudioRingBuffer GstOsxAudioRingBuffer;
+typedef struct _GstOsxAudioRingBufferClass GstOsxAudioRingBufferClass;
+
+struct _GstOsxAudioRingBuffer
+{
+ GstAudioRingBuffer object;
+
+ GstCoreAudio *core_audio;
+
+ guint buffer_len;
+ guint segoffset;
+};
+
+struct _GstOsxAudioRingBufferClass
+{
+ GstAudioRingBufferClass parent_class;
+};
+
+GType gst_osx_audio_ring_buffer_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_OSX_AUDIO_RING_BUFFER_H__ */
+
diff --git a/sys/osxaudio/gstosxaudiosink.c b/sys/osxaudio/gstosxaudiosink.c
new file mode 100755
index 0000000..0479ce1
--- /dev/null
+++ b/sys/osxaudio/gstosxaudiosink.c
@@ -0,0 +1,656 @@
+/*
+ * GStreamer
+ * Copyright (C) 2005,2006 Zaheer Abbas Merali <zaheerabbas at merali dot org>
+ * Copyright (C) 2007,2008 Pioneers of the Inevitable <songbird@songbirdnest.com>
+ * Copyright (C) 2012 Fluendo S.A. <support@fluendo.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
+ * which case the following provisions apply instead of the ones
+ * mentioned above:
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ * The development of this code was made possible due to the involvement of
+ * Pioneers of the Inevitable, the creators of the Songbird Music player
+ *
+ */
+
+/**
+ * SECTION:element-osxaudiosink
+ *
+ * This element renders raw audio samples using the CoreAudio api.
+ *
+ * <refsect2>
+ * <title>Example pipelines</title>
+ * |[
+ * gst-launch-1.0 filesrc location=sine.ogg ! oggdemux ! vorbisdec ! audioconvert ! audioresample ! osxaudiosink
+ * ]| Play an Ogg/Vorbis file.
+ * </refsect2>
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <gst/gst.h>
+#include <gst/audio/audio.h>
+#include <gst/audio/audio-channels.h>
+#include <gst/audio/gstaudioiec61937.h>
+
+#include "gstosxaudiosink.h"
+#include "gstosxaudioelement.h"
+
+GST_DEBUG_CATEGORY_STATIC (osx_audiosink_debug);
+#define GST_CAT_DEFAULT osx_audiosink_debug
+
+#include "gstosxcoreaudio.h"
+
+/* Filter signals and args */
+enum
+{
+ /* FILL ME */
+ LAST_SIGNAL
+};
+
+enum
+{
+ ARG_0,
+ ARG_DEVICE,
+ ARG_VOLUME
+};
+
+#define DEFAULT_VOLUME 1.0
+
+#if (G_BYTE_ORDER == G_LITTLE_ENDIAN)
+# define FORMATS "{ S32LE, S24LE, S16LE, U8 }"
+#else
+# define FORMATS "{ S32BE, S24BE, S16BE, U8 }"
+#endif
+
+static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("audio/x-raw, "
+ "format = (string) " FORMATS ", "
+ "layout = (string) interleaved, "
+ "rate = (int) [1, MAX], "
+ "channels = (int) [1, 9];"
+ "audio/x-ac3, framed = (boolean) true;"
+ "audio/x-dts, framed = (boolean) true")
+ );
+
+static void gst_osx_audio_sink_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_osx_audio_sink_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+
+static gboolean gst_osx_audio_sink_query (GstBaseSink * base, GstQuery * query);
+
+static gboolean gst_osx_audio_sink_stop (GstBaseSink * base);
+static GstCaps *gst_osx_audio_sink_getcaps (GstBaseSink * base,
+ GstCaps * filter);
+static gboolean gst_osx_audio_sink_acceptcaps (GstOsxAudioSink * sink,
+ GstCaps * caps);
+
+static GstBuffer *gst_osx_audio_sink_sink_payload (GstAudioBaseSink * sink,
+ GstBuffer * buf);
+static GstAudioRingBuffer
+ * gst_osx_audio_sink_create_ringbuffer (GstAudioBaseSink * sink);
+static void gst_osx_audio_sink_osxelement_init (gpointer g_iface,
+ gpointer iface_data);
+static gboolean gst_osx_audio_sink_select_device (GstOsxAudioSink * osxsink);
+static void gst_osx_audio_sink_set_volume (GstOsxAudioSink * sink);
+
+static OSStatus gst_osx_audio_sink_io_proc (GstOsxAudioRingBuffer * buf,
+ AudioUnitRenderActionFlags * ioActionFlags,
+ const AudioTimeStamp * inTimeStamp,
+ UInt32 inBusNumber, UInt32 inNumberFrames, AudioBufferList * bufferList);
+
+static void
+gst_osx_audio_sink_do_init (GType type)
+{
+ static const GInterfaceInfo osxelement_info = {
+ gst_osx_audio_sink_osxelement_init,
+ NULL,
+ NULL
+ };
+
+ GST_DEBUG_CATEGORY_INIT (osx_audiosink_debug, "osxaudiosink", 0,
+ "OSX Audio Sink");
+ gst_core_audio_init_debug ();
+ GST_DEBUG ("Adding static interface");
+ g_type_add_interface_static (type, GST_OSX_AUDIO_ELEMENT_TYPE,
+ &osxelement_info);
+}
+
+#define gst_osx_audio_sink_parent_class parent_class
+G_DEFINE_TYPE_WITH_CODE (GstOsxAudioSink, gst_osx_audio_sink,
+ GST_TYPE_AUDIO_BASE_SINK, gst_osx_audio_sink_do_init (g_define_type_id));
+
+static void
+gst_osx_audio_sink_class_init (GstOsxAudioSinkClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+ GstBaseSinkClass *gstbasesink_class;
+ GstAudioBaseSinkClass *gstaudiobasesink_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
+ gstbasesink_class = (GstBaseSinkClass *) klass;
+ gstaudiobasesink_class = (GstAudioBaseSinkClass *) klass;
+
+ parent_class = g_type_class_peek_parent (klass);
+
+ gobject_class->set_property = gst_osx_audio_sink_set_property;
+ gobject_class->get_property = gst_osx_audio_sink_get_property;
+
+#ifndef HAVE_IOS
+ g_object_class_install_property (gobject_class, ARG_DEVICE,
+ g_param_spec_int ("device", "Device ID", "Device ID of output device",
+ 0, G_MAXINT, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+#endif
+
+ gstbasesink_class->query = GST_DEBUG_FUNCPTR (gst_osx_audio_sink_query);
+
+ g_object_class_install_property (gobject_class, ARG_VOLUME,
+ g_param_spec_double ("volume", "Volume", "Volume of this stream",
+ 0, 1.0, 1.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ gstbasesink_class->get_caps = GST_DEBUG_FUNCPTR (gst_osx_audio_sink_getcaps);
+ gstbasesink_class->stop = GST_DEBUG_FUNCPTR (gst_osx_audio_sink_stop);
+
+ gstaudiobasesink_class->create_ringbuffer =
+ GST_DEBUG_FUNCPTR (gst_osx_audio_sink_create_ringbuffer);
+ gstaudiobasesink_class->payload =
+ GST_DEBUG_FUNCPTR (gst_osx_audio_sink_sink_payload);
+
+ gst_element_class_add_pad_template (gstelement_class,
+ gst_static_pad_template_get (&sink_factory));
+
+ gst_element_class_set_static_metadata (gstelement_class, "Audio Sink (OSX)",
+ "Sink/Audio",
+ "Output to a sound card in OS X",
+ "Zaheer Abbas Merali <zaheerabbas at merali dot org>");
+}
+
+static void
+gst_osx_audio_sink_init (GstOsxAudioSink * sink)
+{
+ gint i;
+
+ GST_DEBUG ("Initialising object");
+
+ sink->device_id = kAudioDeviceUnknown;
+ sink->cached_caps = NULL;
+
+ sink->volume = DEFAULT_VOLUME;
+
+ sink->channels = 0;
+ for (i = 0; i < GST_OSX_AUDIO_MAX_CHANNEL; i++) {
+ sink->channel_positions[i] = GST_AUDIO_CHANNEL_POSITION_INVALID;
+ }
+}
+
+static void
+gst_osx_audio_sink_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstOsxAudioSink *sink = GST_OSX_AUDIO_SINK (object);
+
+ switch (prop_id) {
+#ifndef HAVE_IOS
+ case ARG_DEVICE:
+ sink->device_id = g_value_get_int (value);
+ break;
+#endif
+ case ARG_VOLUME:
+ sink->volume = g_value_get_double (value);
+ gst_osx_audio_sink_set_volume (sink);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_osx_audio_sink_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ GstOsxAudioSink *sink = GST_OSX_AUDIO_SINK (object);
+ switch (prop_id) {
+#ifndef HAVE_IOS
+ case ARG_DEVICE:
+ g_value_set_int (value, sink->device_id);
+ break;
+#endif
+ case ARG_VOLUME:
+ g_value_set_double (value, sink->volume);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static gboolean
+gst_osx_audio_sink_query (GstBaseSink * base, GstQuery * query)
+{
+ GstOsxAudioSink *sink = GST_OSX_AUDIO_SINK (base);
+ gboolean ret = FALSE;
+
+ switch (GST_QUERY_TYPE (query)) {
+ case GST_QUERY_ACCEPT_CAPS:
+ {
+ GstCaps *caps = NULL;
+
+ gst_query_parse_accept_caps (query, &caps);
+ ret = gst_osx_audio_sink_acceptcaps (sink, caps);
+ gst_query_set_accept_caps_result (query, ret);
+ ret = TRUE;
+ break;
+ }
+ default:
+ ret = GST_BASE_SINK_CLASS (parent_class)->query (base, query);
+ break;
+ }
+ return ret;
+}
+
+static gboolean
+gst_osx_audio_sink_stop (GstBaseSink * base)
+{
+ GstOsxAudioSink *sink = GST_OSX_AUDIO_SINK (base);
+
+ if (sink->cached_caps) {
+ gst_caps_unref (sink->cached_caps);
+ sink->cached_caps = NULL;
+ }
+
+ return GST_CALL_PARENT_WITH_DEFAULT (GST_BASE_SINK_CLASS, stop, (base), TRUE);
+}
+
+static GstCaps *
+gst_osx_audio_sink_getcaps (GstBaseSink * base, GstCaps * filter)
+{
+ GstOsxAudioSink *sink = GST_OSX_AUDIO_SINK (base);
+ gchar *caps_string = NULL;
+
+ if (sink->cached_caps) {
+ caps_string = gst_caps_to_string (sink->cached_caps);
+ GST_DEBUG_OBJECT (sink, "using cached caps: %s", caps_string);
+ g_free (caps_string);
+ if (filter)
+ return gst_caps_intersect_full (sink->cached_caps, filter,
+ GST_CAPS_INTERSECT_FIRST);
+ return gst_caps_ref (sink->cached_caps);
+ }
+
+ GST_DEBUG_OBJECT (sink, "using template caps");
+ return NULL;
+}
+
+static gboolean
+gst_osx_audio_sink_acceptcaps (GstOsxAudioSink * sink, GstCaps * caps)
+{
+ GstCaps *pad_caps;
+ GstStructure *st;
+ gboolean ret = FALSE;
+ GstAudioRingBufferSpec spec = { 0 };
+ gchar *caps_string = NULL;
+
+ caps_string = gst_caps_to_string (caps);
+ GST_DEBUG_OBJECT (sink, "acceptcaps called with %s", caps_string);
+ g_free (caps_string);
+
+ pad_caps = gst_pad_query_caps (GST_BASE_SINK_PAD (sink), caps);
+ if (pad_caps) {
+ gboolean cret = gst_caps_can_intersect (pad_caps, caps);
+ gst_caps_unref (pad_caps);
+ if (!cret)
+ goto done;
+ }
+
+ /* If we've not got fixed caps, creating a stream might fail,
+ * so let's just return from here with default acceptcaps
+ * behaviour */
+ if (!gst_caps_is_fixed (caps))
+ goto done;
+
+ /* parse helper expects this set, so avoid nasty warning
+ * will be set properly later on anyway */
+ spec.latency_time = GST_SECOND;
+ if (!gst_audio_ring_buffer_parse_caps (&spec, caps))
+ goto done;
+
+ /* Make sure input is framed and can be payloaded */
+ switch (spec.type) {
+ case GST_AUDIO_RING_BUFFER_FORMAT_TYPE_AC3:
+ {
+ gboolean framed = FALSE;
+
+ st = gst_caps_get_structure (caps, 0);
+
+ gst_structure_get_boolean (st, "framed", &framed);
+ if (!framed || gst_audio_iec61937_frame_size (&spec) <= 0)
+ goto done;
+ break;
+ }
+ case GST_AUDIO_RING_BUFFER_FORMAT_TYPE_DTS:
+ {
+ gboolean parsed = FALSE;
+
+ st = gst_caps_get_structure (caps, 0);
+
+ gst_structure_get_boolean (st, "parsed", &parsed);
+ if (!parsed || gst_audio_iec61937_frame_size (&spec) <= 0)
+ goto done;
+ break;
+ }
+ default:
+ break;
+ }
+ ret = TRUE;
+
+done:
+ return ret;
+}
+
+static GstBuffer *
+gst_osx_audio_sink_sink_payload (GstAudioBaseSink * sink, GstBuffer * buf)
+{
+ if (RINGBUFFER_IS_SPDIF (sink->ringbuffer->spec.type)) {
+ gint framesize = gst_audio_iec61937_frame_size (&sink->ringbuffer->spec);
+ GstBuffer *out;
+ GstMapInfo inmap, outmap;
+ gboolean res;
+
+ if (framesize <= 0)
+ return NULL;
+
+ out = gst_buffer_new_and_alloc (framesize);
+
+ gst_buffer_map (buf, &inmap, GST_MAP_READ);
+ gst_buffer_map (out, &outmap, GST_MAP_WRITE);
+
+ /* FIXME: the endianness needs to be queried and then set */
+ res = gst_audio_iec61937_payload (inmap.data, inmap.size,
+ outmap.data, outmap.size, &sink->ringbuffer->spec, G_BIG_ENDIAN);
+
+ gst_buffer_unmap (buf, &inmap);
+ gst_buffer_unmap (out, &outmap);
+
+ if (!res) {
+ gst_buffer_unref (out);
+ return NULL;
+ }
+
+ gst_buffer_copy_into (out, buf, GST_BUFFER_COPY_METADATA, 0, -1);
+ return out;
+
+ } else {
+ return gst_buffer_ref (buf);
+ }
+}
+
+static GstAudioRingBuffer *
+gst_osx_audio_sink_create_ringbuffer (GstAudioBaseSink * sink)
+{
+ GstOsxAudioSink *osxsink;
+ GstOsxAudioRingBuffer *ringbuffer;
+
+ osxsink = GST_OSX_AUDIO_SINK (sink);
+
+ if (!gst_osx_audio_sink_select_device (osxsink)) {
+ GST_ERROR_OBJECT (sink, "Could not select device");
+ return NULL;
+ }
+
+ GST_DEBUG_OBJECT (sink, "Creating ringbuffer");
+ ringbuffer = g_object_new (GST_TYPE_OSX_AUDIO_RING_BUFFER, NULL);
+ GST_DEBUG_OBJECT (sink, "osx sink %p element %p ioproc %p", osxsink,
+ GST_OSX_AUDIO_ELEMENT_GET_INTERFACE (osxsink),
+ (void *) gst_osx_audio_sink_io_proc);
+
+ gst_osx_audio_sink_set_volume (osxsink);
+
+ ringbuffer->core_audio->element =
+ GST_OSX_AUDIO_ELEMENT_GET_INTERFACE (osxsink);
+ ringbuffer->core_audio->device_id = osxsink->device_id;
+ ringbuffer->core_audio->is_src = FALSE;
+
+ return GST_AUDIO_RING_BUFFER (ringbuffer);
+}
+
+/* HALOutput AudioUnit will request fairly arbitrarily-sized chunks
+ * of data, not of a fixed size. So, we keep track of where in
+ * the current ringbuffer segment we are, and only advance the segment
+ * once we've read the whole thing */
+static OSStatus
+gst_osx_audio_sink_io_proc (GstOsxAudioRingBuffer * buf,
+ AudioUnitRenderActionFlags * ioActionFlags,
+ const AudioTimeStamp * inTimeStamp,
+ UInt32 inBusNumber, UInt32 inNumberFrames, AudioBufferList * bufferList)
+{
+ guint8 *readptr;
+ gint readseg;
+ gint len;
+ gint stream_idx = buf->core_audio->stream_idx;
+ gint remaining = bufferList->mBuffers[stream_idx].mDataByteSize;
+ gint offset = 0;
+
+ while (remaining) {
+ if (!gst_audio_ring_buffer_prepare_read (GST_AUDIO_RING_BUFFER (buf),
+ &readseg, &readptr, &len))
+ return 0;
+
+ len -= buf->segoffset;
+
+ if (len > remaining)
+ len = remaining;
+
+ memcpy ((char *) bufferList->mBuffers[stream_idx].mData + offset,
+ readptr + buf->segoffset, len);
+
+ buf->segoffset += len;
+ offset += len;
+ remaining -= len;
+
+ if ((gint) buf->segoffset == GST_AUDIO_RING_BUFFER (buf)->spec.segsize) {
+ /* clear written samples */
+ gst_audio_ring_buffer_clear (GST_AUDIO_RING_BUFFER (buf), readseg);
+
+ /* we wrote one segment */
+ gst_audio_ring_buffer_advance (GST_AUDIO_RING_BUFFER (buf), 1);
+
+ buf->segoffset = 0;
+ }
+ }
+ return 0;
+}
+
+static void
+gst_osx_audio_sink_osxelement_init (gpointer g_iface, gpointer iface_data)
+{
+ GstOsxAudioElementInterface *iface = (GstOsxAudioElementInterface *) g_iface;
+
+ iface->io_proc = (AURenderCallback) gst_osx_audio_sink_io_proc;
+}
+
+static void
+gst_osx_audio_sink_set_volume (GstOsxAudioSink * sink)
+{
+ GstOsxAudioRingBuffer *osxbuf;
+
+ osxbuf = GST_OSX_AUDIO_RING_BUFFER (GST_AUDIO_BASE_SINK (sink)->ringbuffer);
+ if (!osxbuf)
+ return;
+
+ gst_core_audio_set_volume (osxbuf->core_audio, sink->volume);
+}
+
+static gboolean
+gst_osx_audio_sink_allowed_caps (GstOsxAudioSink * osxsink)
+{
+ gint i, channels;
+ gboolean spdif_allowed;
+ AudioChannelLayout *layout;
+ GstElementClass *element_class;
+ GstPadTemplate *pad_template;
+ GstCaps *caps, *in_caps;
+ guint64 channel_mask = 0;
+ GstAudioChannelPosition *pos = osxsink->channel_positions;
+
+ /* First collect info about the HW capabilites and preferences */
+ spdif_allowed =
+ gst_core_audio_audio_device_is_spdif_avail (osxsink->device_id);
+ layout = gst_core_audio_audio_device_get_channel_layout (osxsink->device_id);
+
+ GST_DEBUG_OBJECT (osxsink, "Selected device ID: %u SPDIF allowed: %d",
+ (unsigned) osxsink->device_id, spdif_allowed);
+
+ if (layout) {
+ channels = MIN (layout->mNumberChannelDescriptions,
+ GST_OSX_AUDIO_MAX_CHANNEL);
+ } else {
+ GST_WARNING_OBJECT (osxsink, "This driver does not support "
+ "kAudioDevicePropertyPreferredChannelLayout.");
+ channels = 2;
+ }
+
+ switch (channels) {
+ case 0:
+ pos[0] = GST_AUDIO_CHANNEL_POSITION_NONE;
+ break;
+ case 1:
+ pos[0] = GST_AUDIO_CHANNEL_POSITION_MONO;
+ break;
+ case 2:
+ pos[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
+ pos[1] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
+ channel_mask |= GST_AUDIO_CHANNEL_POSITION_MASK (FRONT_LEFT);
+ channel_mask |= GST_AUDIO_CHANNEL_POSITION_MASK (FRONT_RIGHT);
+ break;
+ default:
+ channels = MIN (layout->mNumberChannelDescriptions,
+ GST_OSX_AUDIO_MAX_CHANNEL);
+ for (i = 0; i < channels; i++) {
+ switch (layout->mChannelDescriptions[i].mChannelLabel) {
+ case kAudioChannelLabel_Left:
+ pos[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
+ break;
+ case kAudioChannelLabel_Right:
+ pos[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;
+ break;
+ case kAudioChannelLabel_Center:
+ pos[i] = GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER;
+ break;
+ case kAudioChannelLabel_LFEScreen:
+ pos[i] = GST_AUDIO_CHANNEL_POSITION_LFE1;
+ break;
+ case kAudioChannelLabel_LeftSurround:
+ pos[i] = GST_AUDIO_CHANNEL_POSITION_REAR_LEFT;
+ break;
+ case kAudioChannelLabel_RightSurround:
+ pos[i] = GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT;
+ break;
+ case kAudioChannelLabel_RearSurroundLeft:
+ pos[i] = GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT;
+ break;
+ case kAudioChannelLabel_RearSurroundRight:
+ pos[i] = GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT;
+ break;
+ case kAudioChannelLabel_CenterSurround:
+ pos[i] = GST_AUDIO_CHANNEL_POSITION_REAR_CENTER;
+ break;
+ default:
+ GST_WARNING_OBJECT (osxsink, "unrecognized channel: %d",
+ (int) layout->mChannelDescriptions[i].mChannelLabel);
+ channel_mask = 0;
+ channels = 2;
+ break;
+ }
+ }
+ }
+ g_free (layout);
+
+ /* Recover the template caps */
+ element_class = GST_ELEMENT_GET_CLASS (osxsink);
+ pad_template = gst_element_class_get_pad_template (element_class, "sink");
+ in_caps = gst_pad_template_get_caps (pad_template);
+
+ /* Create the allowed subset */
+ caps = gst_caps_new_empty ();
+ for (i = 0; i < gst_caps_get_size (in_caps); i++) {
+ GstStructure *in_s, *out_s;
+
+ in_s = gst_caps_get_structure (in_caps, i);
+
+ if (gst_structure_has_name (in_s, "audio/x-ac3") ||
+ gst_structure_has_name (in_s, "audio/x-dts")) {
+ if (spdif_allowed) {
+ gst_caps_append_structure (caps, gst_structure_copy (in_s));
+ }
+ }
+ gst_audio_channel_positions_to_mask (pos, channels, false, &channel_mask);
+ out_s = gst_structure_copy (in_s);
+ gst_structure_remove_fields (out_s, "channels", "channel-mask", NULL);
+ gst_structure_set (out_s, "channels", G_TYPE_INT, channels,
+ "channel-mask", GST_TYPE_BITMASK, channel_mask, NULL);
+ gst_caps_append_structure (caps, out_s);
+ }
+
+ if (osxsink->cached_caps) {
+ gst_caps_unref (osxsink->cached_caps);
+ }
+
+ osxsink->cached_caps = caps;
+ osxsink->channels = channels;
+
+ return TRUE;
+}
+
+static gboolean
+gst_osx_audio_sink_select_device (GstOsxAudioSink * osxsink)
+{
+ gboolean res = FALSE;
+
+ if (!gst_core_audio_select_device (&osxsink->device_id))
+ return FALSE;
+ res = gst_osx_audio_sink_allowed_caps (osxsink);
+
+ return res;
+}
diff --git a/sys/osxaudio/gstosxaudiosink.h b/sys/osxaudio/gstosxaudiosink.h
new file mode 100755
index 0000000..84949b7
--- /dev/null
+++ b/sys/osxaudio/gstosxaudiosink.h
@@ -0,0 +1,98 @@
+/*
+ * GStreamer
+ * Copyright (C) 2005-2006 Zaheer Abbas Merali <zaheerabbas at merali dot org>
+ * Copyright (C) 2007 Pioneers of the Inevitable <songbird@songbirdnest.com>
+ * Copyright (C) 2012 Fluendo S.A. <support@fluendo.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
+ * which case the following provisions apply instead of the ones
+ * mentioned above:
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ * The development of this code was made possible due to the involvement of
+ * Pioneers of the Inevitable, the creators of the Songbird Music player
+ *
+ */
+
+#ifndef __GST_OSXAUDIOSINK_H__
+#define __GST_OSXAUDIOSINK_H__
+
+#include <gst/gst.h>
+#include <gst/audio/audio.h>
+#include <gst/audio/gstaudiobasesink.h>
+#include "gstosxaudioringbuffer.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_OSX_AUDIO_SINK \
+ (gst_osx_audio_sink_get_type())
+#define GST_OSX_AUDIO_SINK(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSX_AUDIO_SINK,GstOsxAudioSink))
+#define GST_OSX_AUDIO_SINK_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSX_AUDIO_SINK,GstOsxAudioSinkClass))
+#define GST_IS_OSX_AUDIO_SINK(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSX_AUDIO_SINK))
+
+#define GST_OSX_AUDIO_MAX_CHANNEL (9)
+
+typedef struct _GstOsxAudioSink GstOsxAudioSink;
+typedef struct _GstOsxAudioSinkClass GstOsxAudioSinkClass;
+
+struct _GstOsxAudioSink
+{
+ GstAudioBaseSink sink;
+
+ AudioDeviceID device_id;
+
+ AudioUnit audiounit;
+ double volume;
+ GstCaps *cached_caps;
+
+ guint channels;
+ GstAudioChannelPosition channel_positions[GST_OSX_AUDIO_MAX_CHANNEL];
+};
+
+struct _GstOsxAudioSinkClass
+{
+ GstAudioBaseSinkClass parent_class;
+};
+
+GType gst_osx_audio_sink_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_OSXAUDIOSINK_H__ */
+
diff --git a/sys/osxaudio/gstosxaudiosrc.c b/sys/osxaudio/gstosxaudiosrc.c
new file mode 100755
index 0000000..fa5da16
--- /dev/null
+++ b/sys/osxaudio/gstosxaudiosrc.c
@@ -0,0 +1,334 @@
+/*
+ * GStreamer
+ * Copyright (C) 2005,2006 Zaheer Abbas Merali <zaheerabbas at merali dot org>
+ * Copyright (C) 2008 Pioneers of the Inevitable <songbird@songbirdnest.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
+ * which case the following provisions apply instead of the ones
+ * mentioned above:
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+/**
+ * SECTION:element-osxaudiosrc
+ *
+ * This element captures raw audio samples using the CoreAudio api.
+ *
+ * <refsect2>
+ * <title>Example launch line</title>
+ * |[
+ * gst-launch-1.0 osxaudiosrc ! wavenc ! filesink location=audio.wav
+ * ]|
+ * </refsect2>
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <gst/gst.h>
+#include "gstosxaudiosrc.h"
+#include "gstosxaudioelement.h"
+
+GST_DEBUG_CATEGORY_STATIC (osx_audiosrc_debug);
+#define GST_CAT_DEFAULT osx_audiosrc_debug
+
+/* Filter signals and args */
+enum
+{
+ /* FILL ME */
+ LAST_SIGNAL
+};
+
+enum
+{
+ ARG_0,
+ ARG_DEVICE
+};
+
+#if (G_BYTE_ORDER == G_LITTLE_ENDIAN)
+# define FORMATS "{ S32LE }"
+#else
+# define FORMATS "{ S32BE }"
+#endif
+
+static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("audio/x-raw, "
+ "format = (string) " FORMATS ", "
+ "layout = (string) interleaved, "
+ "rate = (int) [1, MAX], " "channels = (int) [1, MAX]")
+ );
+
+static void gst_osx_audio_src_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_osx_audio_src_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+
+static GstCaps *gst_osx_audio_src_get_caps (GstBaseSrc * src, GstCaps * filter);
+
+static GstAudioRingBuffer *gst_osx_audio_src_create_ringbuffer (GstAudioBaseSrc
+ * src);
+static void gst_osx_audio_src_osxelement_init (gpointer g_iface,
+ gpointer iface_data);
+static OSStatus gst_osx_audio_src_io_proc (GstOsxAudioRingBuffer * buf,
+ AudioUnitRenderActionFlags * ioActionFlags,
+ const AudioTimeStamp * inTimeStamp, UInt32 inBusNumber,
+ UInt32 inNumberFrames, AudioBufferList * bufferList);
+static void gst_osx_audio_src_select_device (GstOsxAudioSrc * osxsrc);
+
+static void
+gst_osx_audio_src_do_init (GType type)
+{
+ static const GInterfaceInfo osxelement_info = {
+ gst_osx_audio_src_osxelement_init,
+ NULL,
+ NULL
+ };
+
+ GST_DEBUG_CATEGORY_INIT (osx_audiosrc_debug, "osxaudiosrc", 0,
+ "OSX Audio Src");
+ GST_DEBUG ("Adding static interface");
+ g_type_add_interface_static (type, GST_OSX_AUDIO_ELEMENT_TYPE,
+ &osxelement_info);
+}
+
+G_DEFINE_TYPE_WITH_CODE (GstOsxAudioSrc, gst_osx_audio_src,
+ GST_TYPE_AUDIO_BASE_SRC, gst_osx_audio_src_do_init (g_define_type_id));
+
+static void
+gst_osx_audio_src_class_init (GstOsxAudioSrcClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+ GstBaseSrcClass *gstbasesrc_class;
+ GstAudioBaseSrcClass *gstaudiobasesrc_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
+ gstbasesrc_class = (GstBaseSrcClass *) klass;
+ gstaudiobasesrc_class = (GstAudioBaseSrcClass *) klass;
+
+ gobject_class->set_property = gst_osx_audio_src_set_property;
+ gobject_class->get_property = gst_osx_audio_src_get_property;
+
+ gstbasesrc_class->get_caps = GST_DEBUG_FUNCPTR (gst_osx_audio_src_get_caps);
+
+ g_object_class_install_property (gobject_class, ARG_DEVICE,
+ g_param_spec_int ("device", "Device ID", "Device ID of input device",
+ 0, G_MAXINT, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ gstaudiobasesrc_class->create_ringbuffer =
+ GST_DEBUG_FUNCPTR (gst_osx_audio_src_create_ringbuffer);
+
+ gst_element_class_add_pad_template (gstelement_class,
+ gst_static_pad_template_get (&src_factory));
+
+ gst_element_class_set_static_metadata (gstelement_class, "Audio Source (OSX)",
+ "Source/Audio",
+ "Input from a sound card in OS X",
+ "Zaheer Abbas Merali <zaheerabbas at merali dot org>");
+}
+
+static void
+gst_osx_audio_src_init (GstOsxAudioSrc * src)
+{
+ gst_base_src_set_live (GST_BASE_SRC (src), TRUE);
+
+ src->device_id = kAudioDeviceUnknown;
+ src->deviceChannels = -1;
+}
+
+static void
+gst_osx_audio_src_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstOsxAudioSrc *src = GST_OSX_AUDIO_SRC (object);
+
+ switch (prop_id) {
+ case ARG_DEVICE:
+ src->device_id = g_value_get_int (value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_osx_audio_src_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ GstOsxAudioSrc *src = GST_OSX_AUDIO_SRC (object);
+
+ switch (prop_id) {
+ case ARG_DEVICE:
+ g_value_set_int (value, src->device_id);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static GstCaps *
+gst_osx_audio_src_get_caps (GstBaseSrc * src, GstCaps * filter)
+{
+ GstElementClass *gstelement_class;
+ GstOsxAudioSrc *osxsrc;
+ GstPadTemplate *pad_template;
+ GstCaps *caps;
+ gint min, max;
+
+ gstelement_class = GST_ELEMENT_GET_CLASS (src);
+ osxsrc = GST_OSX_AUDIO_SRC (src);
+
+ if (osxsrc->deviceChannels == -1) {
+ /* -1 means we don't know the number of channels yet. for now, return
+ * template caps.
+ */
+ return NULL;
+ }
+
+ max = osxsrc->deviceChannels;
+ if (max < 1)
+ max = 1; /* 0 channels means 1 channel? */
+
+ min = MIN (1, max);
+
+ pad_template = gst_element_class_get_pad_template (gstelement_class, "src");
+ g_return_val_if_fail (pad_template != NULL, NULL);
+
+ caps = gst_caps_copy (gst_pad_template_get_caps (pad_template));
+
+ if (min == max) {
+ gst_caps_set_simple (caps, "channels", G_TYPE_INT, max, NULL);
+ } else {
+ gst_caps_set_simple (caps, "channels", GST_TYPE_INT_RANGE, min, max, NULL);
+ }
+
+ return caps;
+}
+
+static GstAudioRingBuffer *
+gst_osx_audio_src_create_ringbuffer (GstAudioBaseSrc * src)
+{
+ GstOsxAudioSrc *osxsrc;
+ GstOsxAudioRingBuffer *ringbuffer;
+
+ osxsrc = GST_OSX_AUDIO_SRC (src);
+
+ gst_osx_audio_src_select_device (osxsrc);
+
+ GST_DEBUG ("Creating ringbuffer");
+ ringbuffer = g_object_new (GST_TYPE_OSX_AUDIO_RING_BUFFER, NULL);
+ GST_DEBUG ("osx src 0x%p element 0x%p ioproc 0x%p", osxsrc,
+ GST_OSX_AUDIO_ELEMENT_GET_INTERFACE (osxsrc),
+ (void *) gst_osx_audio_src_io_proc);
+
+ ringbuffer->core_audio->element =
+ GST_OSX_AUDIO_ELEMENT_GET_INTERFACE (osxsrc);
+ ringbuffer->core_audio->is_src = TRUE;
+ ringbuffer->core_audio->device_id = osxsrc->device_id;
+
+ return GST_AUDIO_RING_BUFFER (ringbuffer);
+}
+
+static OSStatus
+gst_osx_audio_src_io_proc (GstOsxAudioRingBuffer * buf,
+ AudioUnitRenderActionFlags * ioActionFlags,
+ const AudioTimeStamp * inTimeStamp,
+ UInt32 inBusNumber, UInt32 inNumberFrames, AudioBufferList * bufferList)
+{
+ OSStatus status;
+ guint8 *writeptr;
+ gint writeseg;
+ gint len;
+ gint remaining;
+ gint offset = 0;
+
+ status = AudioUnitRender (buf->core_audio->audiounit, ioActionFlags,
+ inTimeStamp, inBusNumber, inNumberFrames, buf->core_audio->recBufferList);
+
+ if (status) {
+ GST_WARNING_OBJECT (buf, "AudioUnitRender returned %d", (int) status);
+ return status;
+ }
+
+ remaining = buf->core_audio->recBufferList->mBuffers[0].mDataByteSize;
+
+ while (remaining) {
+ if (!gst_audio_ring_buffer_prepare_read (GST_AUDIO_RING_BUFFER (buf),
+ &writeseg, &writeptr, &len))
+ return 0;
+
+ len -= buf->segoffset;
+
+ if (len > remaining)
+ len = remaining;
+
+ memcpy (writeptr + buf->segoffset,
+ (char *) buf->core_audio->recBufferList->mBuffers[0].mData + offset,
+ len);
+
+ buf->segoffset += len;
+ offset += len;
+ remaining -= len;
+
+ if ((gint) buf->segoffset == GST_AUDIO_RING_BUFFER (buf)->spec.segsize) {
+ /* we wrote one segment */
+ gst_audio_ring_buffer_advance (GST_AUDIO_RING_BUFFER (buf), 1);
+
+ buf->segoffset = 0;
+ }
+ }
+ return 0;
+}
+
+static void
+gst_osx_audio_src_osxelement_init (gpointer g_iface, gpointer iface_data)
+{
+ GstOsxAudioElementInterface *iface = (GstOsxAudioElementInterface *) g_iface;
+
+ iface->io_proc = (AURenderCallback) gst_osx_audio_src_io_proc;
+}
+
+static void
+gst_osx_audio_src_select_device (GstOsxAudioSrc * osxsrc)
+{
+ gst_core_audio_select_source_device (&osxsrc->device_id);
+}
diff --git a/sys/osxaudio/gstosxaudiosrc.h b/sys/osxaudio/gstosxaudiosrc.h
new file mode 100755
index 0000000..a5f5d84
--- /dev/null
+++ b/sys/osxaudio/gstosxaudiosrc.h
@@ -0,0 +1,83 @@
+/*
+ * GStreamer
+ * Copyright (C) 2005-2006 Zaheer Abbas Merali <zaheerabbas at merali dot org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
+ * which case the following provisions apply instead of the ones
+ * mentioned above:
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __GST_OSXAUDIOSRC_H__
+#define __GST_OSXAUDIOSRC_H__
+
+#include <gst/gst.h>
+#include <gst/audio/audio.h>
+#include <gst/audio/gstaudiobasesrc.h>
+#include "gstosxaudioringbuffer.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_OSX_AUDIO_SRC \
+ (gst_osx_audio_src_get_type())
+#define GST_OSX_AUDIO_SRC(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSX_AUDIO_SRC,GstOsxAudioSrc))
+#define GST_OSX_AUDIO_SRC_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSX_AUDIO_SRC,GstOsxAudioSrcClass))
+
+typedef struct _GstOsxAudioSrc GstOsxAudioSrc;
+typedef struct _GstOsxAudioSrcClass GstOsxAudioSrcClass;
+
+struct _GstOsxAudioSrc
+{
+ GstAudioBaseSrc src;
+
+ AudioDeviceID device_id;
+
+ /* actual number of channels reported by input device */
+ int deviceChannels;
+};
+
+struct _GstOsxAudioSrcClass
+{
+ GstAudioBaseSrcClass parent_class;
+};
+
+GType gst_osx_audio_src_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_OSXAUDIOSRC_H__ */
diff --git a/sys/osxaudio/gstosxcoreaudio.c b/sys/osxaudio/gstosxcoreaudio.c
new file mode 100755
index 0000000..9f69dc0
--- /dev/null
+++ b/sys/osxaudio/gstosxcoreaudio.c
@@ -0,0 +1,221 @@
+/*
+ * GStreamer
+ * Copyright (C) 2012-2013 Fluendo S.A. <support@fluendo.com>
+ * Authors: Josep Torra Vallès <josep@fluendo.com>
+ * Andoni Morales Alastruey <amorales@fluendo.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include "gstosxcoreaudio.h"
+#include "gstosxcoreaudiocommon.h"
+#include "gstosxaudiosrc.h"
+
+GST_DEBUG_CATEGORY_STATIC (osx_audio_debug);
+#define GST_CAT_DEFAULT osx_audio_debug
+
+G_DEFINE_TYPE (GstCoreAudio, gst_core_audio, G_TYPE_OBJECT);
+
+#ifdef HAVE_IOS
+#include "gstosxcoreaudioremoteio.c"
+#else
+#include "gstosxcoreaudiohal.c"
+#endif
+
+
+static void
+gst_core_audio_class_init (GstCoreAudioClass * klass)
+{
+}
+
+static void
+gst_core_audio_init (GstCoreAudio * core_audio)
+{
+ core_audio->is_passthrough = FALSE;
+ core_audio->device_id = kAudioDeviceUnknown;
+ core_audio->is_src = FALSE;
+ core_audio->audiounit = NULL;
+#ifndef HAVE_IOS
+ core_audio->hog_pid = -1;
+ core_audio->disabled_mixing = FALSE;
+#endif
+}
+
+/**************************
+ * Public API *
+ *************************/
+
+GstCoreAudio *
+gst_core_audio_new (GstObject * osxbuf)
+{
+ GstCoreAudio *core_audio;
+
+ core_audio = g_object_new (GST_TYPE_CORE_AUDIO, NULL);
+ core_audio->osxbuf = osxbuf;
+ return core_audio;
+}
+
+gboolean
+gst_core_audio_close (GstCoreAudio * core_audio)
+{
+ AudioComponentInstanceDispose (core_audio->audiounit);
+ core_audio->audiounit = NULL;
+ return TRUE;
+}
+
+gboolean
+gst_core_audio_open (GstCoreAudio * core_audio)
+{
+
+ if (!gst_core_audio_open_impl (core_audio))
+ return FALSE;
+
+ if (core_audio->is_src) {
+ AudioStreamBasicDescription asbd_in;
+ UInt32 propertySize;
+ OSStatus status;
+
+ GstOsxAudioSrc *src =
+ GST_OSX_AUDIO_SRC (GST_OBJECT_PARENT (core_audio->osxbuf));
+
+ propertySize = sizeof (asbd_in);
+ status = AudioUnitGetProperty (core_audio->audiounit,
+ kAudioUnitProperty_StreamFormat,
+ kAudioUnitScope_Input, 1, &asbd_in, &propertySize);
+
+ if (status) {
+ AudioComponentInstanceDispose (core_audio->audiounit);
+ core_audio->audiounit = NULL;
+ GST_WARNING_OBJECT (core_audio,
+ "Unable to obtain device properties: %d", (int) status);
+ return FALSE;
+ } else {
+ src->deviceChannels = asbd_in.mChannelsPerFrame;
+ }
+ }
+
+ return TRUE;
+}
+
+gboolean
+gst_core_audio_start_processing (GstCoreAudio * core_audio)
+{
+ return gst_core_audio_start_processing_impl (core_audio);
+}
+
+gboolean
+gst_core_audio_pause_processing (GstCoreAudio * core_audio)
+{
+ return gst_core_audio_pause_processing_impl (core_audio);
+}
+
+gboolean
+gst_core_audio_stop_processing (GstCoreAudio * core_audio)
+{
+ return gst_core_audio_stop_processing_impl (core_audio);
+}
+
+gboolean
+gst_core_audio_get_samples_and_latency (GstCoreAudio * core_audio,
+ gdouble rate, guint * samples, gdouble * latency)
+{
+ return gst_core_audio_get_samples_and_latency_impl (core_audio, rate,
+ samples, latency);
+}
+
+gboolean
+gst_core_audio_initialize (GstCoreAudio * core_audio,
+ AudioStreamBasicDescription format, GstCaps * caps, gboolean is_passthrough)
+{
+ guint32 frame_size;
+ OSStatus status;
+
+ GST_DEBUG_OBJECT (core_audio,
+ "Initializing: passthrough:%d caps:%" GST_PTR_FORMAT, is_passthrough,
+ caps);
+
+ if (!gst_core_audio_initialize_impl (core_audio, format, caps,
+ is_passthrough, &frame_size)) {
+ goto error;
+ }
+
+ if (core_audio->is_src) {
+ /* create AudioBufferList needed for recording */
+ core_audio->recBufferList =
+ buffer_list_alloc (format.mChannelsPerFrame,
+ frame_size * format.mBytesPerFrame);
+ }
+
+ /* Initialize the AudioUnit */
+ status = AudioUnitInitialize (core_audio->audiounit);
+ if (status) {
+ GST_ERROR_OBJECT (core_audio, "Failed to initialise AudioUnit: %d",
+ (int) status);
+ goto error;
+ }
+ return TRUE;
+
+error:
+ if (core_audio->is_src && core_audio->recBufferList) {
+ buffer_list_free (core_audio->recBufferList);
+ core_audio->recBufferList = NULL;
+ }
+ return FALSE;
+}
+
+void
+gst_core_audio_unitialize (GstCoreAudio * core_audio)
+{
+ AudioUnitUninitialize (core_audio->audiounit);
+
+ if (core_audio->recBufferList) {
+ buffer_list_free (core_audio->recBufferList);
+ core_audio->recBufferList = NULL;
+ }
+}
+
+void
+gst_core_audio_set_volume (GstCoreAudio * core_audio, gfloat volume)
+{
+ AudioUnitSetParameter (core_audio->audiounit, kHALOutputParam_Volume,
+ kAudioUnitScope_Global, 0, (float) volume, 0);
+}
+
+gboolean
+gst_core_audio_select_device (AudioDeviceID * device_id)
+{
+ return gst_core_audio_select_device_impl (device_id);
+}
+
+gboolean
+gst_core_audio_select_source_device (AudioDeviceID * device_id)
+{
+ return gst_core_audio_select_source_device_impl (device_id);
+}
+
+void
+gst_core_audio_init_debug (void)
+{
+ GST_DEBUG_CATEGORY_INIT (osx_audio_debug, "osxaudio", 0,
+ "OSX Audio Elements");
+}
+
+gboolean
+gst_core_audio_audio_device_is_spdif_avail (AudioDeviceID device_id)
+{
+ return gst_core_audio_audio_device_is_spdif_avail_impl (device_id);
+}
diff --git a/sys/osxaudio/gstosxcoreaudio.h b/sys/osxaudio/gstosxcoreaudio.h
new file mode 100755
index 0000000..78cd4b9
--- /dev/null
+++ b/sys/osxaudio/gstosxcoreaudio.h
@@ -0,0 +1,151 @@
+/*
+ * GStreamer
+ * Copyright (C) 2012 Fluendo S.A. <support@fluendo.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef __GST_CORE_AUDIO_H__
+#define __GST_CORE_AUDIO_H__
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <gst/gst.h>
+#ifdef HAVE_IOS
+ #include <CoreAudio/CoreAudioTypes.h>
+ #define AudioDeviceID gint
+ #define kAudioDeviceUnknown 0
+#else
+ #include <CoreAudio/CoreAudio.h>
+ #include <AudioToolbox/AudioToolbox.h>
+ #if MAC_OS_X_VERSION_MIN_REQUIRED < 1060
+ #include <CoreServices/CoreServices.h>
+ #define AudioComponentFindNext FindNextComponent
+ #define AudioComponentInstanceNew OpenAComponent
+ #define AudioComponentInstanceDispose CloseComponent
+ #define AudioComponent Component
+ #define AudioComponentDescription ComponentDescription
+ #endif
+#endif
+#include <AudioUnit/AudioUnit.h>
+#include "gstosxaudioelement.h"
+
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_CORE_AUDIO \
+ (gst_core_audio_get_type())
+#define GST_CORE_AUDIO(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CORE_AUDIO,GstCoreAudio))
+#define GST_CORE_AUDIO_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CORE_AUDIO,GstCoreAudioClass))
+#define GST_CORE_AUDIO_GET_CLASS(obj) \
+ (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_CORE_AUDIO,GstCoreAudioClass))
+#define GST_IS_CORE_AUDIO(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CORE_AUDIO))
+#define GST_IS_CORE_AUDIO_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CORE_AUDIO))
+
+#define CORE_AUDIO_FORMAT_IS_SPDIF(f) ((f).mFormat.mFormatID == 'IAC3' || (f).mFormat.mFormatID == 'iac3' || (f).mFormat.mFormatID == kAudioFormat60958AC3 || (f).mFormat.mFormatID == kAudioFormatAC3)
+
+#define CORE_AUDIO_FORMAT "FormatID: %" GST_FOURCC_FORMAT " rate: %f flags: 0x%x BytesPerPacket: %u FramesPerPacket: %u BytesPerFrame: %u ChannelsPerFrame: %u BitsPerChannel: %u"
+#define CORE_AUDIO_FORMAT_ARGS(f) GST_FOURCC_ARGS((f).mFormatID),(f).mSampleRate,(unsigned)(f).mFormatFlags,(unsigned)(f).mBytesPerPacket,(unsigned)(f).mFramesPerPacket,(unsigned)(f).mBytesPerFrame,(unsigned)(f).mChannelsPerFrame,(unsigned)(f).mBitsPerChannel
+
+typedef struct _GstCoreAudio GstCoreAudio;
+typedef struct _GstCoreAudioClass GstCoreAudioClass;
+
+struct _GstCoreAudio
+{
+ GObject object;
+
+ GstObject *osxbuf;
+ GstOsxAudioElementInterface *element;
+
+ gboolean is_src;
+ gboolean is_passthrough;
+ AudioDeviceID device_id;
+ AudioStreamBasicDescription stream_format;
+ gint stream_idx;
+ gboolean io_proc_active;
+ gboolean io_proc_needs_deactivation;
+
+ /* For LPCM in/out */
+ AudioUnit audiounit;
+ AudioBufferList *recBufferList;
+
+#ifndef HAVE_IOS
+ /* For SPDIF out */
+ pid_t hog_pid;
+ gboolean disabled_mixing;
+ AudioStreamID stream_id;
+ gboolean revert_format;
+ AudioStreamBasicDescription original_format;
+ AudioDeviceIOProcID procID;
+#endif
+};
+
+struct _GstCoreAudioClass
+{
+ GObjectClass parent_class;
+};
+
+GType gst_core_audio_get_type (void);
+
+void gst_core_audio_init_debug (void);
+
+GstCoreAudio * gst_core_audio_new (GstObject *osxbuf);
+
+gboolean gst_core_audio_open (GstCoreAudio *core_audio);
+
+gboolean gst_core_audio_close (GstCoreAudio *core_audio);
+
+gboolean gst_core_audio_initialize (GstCoreAudio *core_audio,
+ AudioStreamBasicDescription format,
+ GstCaps *caps,
+ gboolean is_passthrough);
+
+void gst_core_audio_unitialize (GstCoreAudio *core_audio);
+
+gboolean gst_core_audio_start_processing (GstCoreAudio *core_audio);
+
+gboolean gst_core_audio_pause_processing (GstCoreAudio *core_audio);
+
+gboolean gst_core_audio_stop_processing (GstCoreAudio *core_audio);
+
+gboolean gst_core_audio_get_samples_and_latency (GstCoreAudio * core_audio,
+ gdouble rate,
+ guint *samples,
+ gdouble *latency);
+
+void gst_core_audio_set_volume (GstCoreAudio *core_audio,
+ gfloat volume);
+
+gboolean gst_core_audio_audio_device_is_spdif_avail (AudioDeviceID device_id);
+
+
+gboolean gst_core_audio_select_device (AudioDeviceID *device_id);
+
+gboolean gst_core_audio_select_source_device (AudioDeviceID *device_id);
+
+AudioChannelLayout * gst_core_audio_audio_device_get_channel_layout (AudioDeviceID device_id);
+
+
+G_END_DECLS
+
+#endif /* __GST_CORE_AUDIO_H__ */
diff --git a/sys/osxaudio/gstosxcoreaudiocommon.c b/sys/osxaudio/gstosxcoreaudiocommon.c
new file mode 100755
index 0000000..badb40c
--- /dev/null
+++ b/sys/osxaudio/gstosxcoreaudiocommon.c
@@ -0,0 +1,430 @@
+/*
+ * GStreamer
+ * Copyright (C) 2012-2013 Fluendo S.A. <support@fluendo.com>
+ * Authors: Josep Torra Vallès <josep@fluendo.com>
+ * Andoni Morales Alastruey <amorales@fluendo.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include "gstosxcoreaudiocommon.h"
+
+void
+gst_core_audio_remove_render_callback (GstCoreAudio * core_audio)
+{
+ AURenderCallbackStruct input;
+ OSStatus status;
+
+ /* Deactivate the render callback by calling SetRenderCallback
+ * with a NULL inputProc.
+ */
+ input.inputProc = NULL;
+ input.inputProcRefCon = NULL;
+
+ status = AudioUnitSetProperty (core_audio->audiounit, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Global, 0, /* N/A for global */
+ &input, sizeof (input));
+
+ if (status) {
+ GST_WARNING_OBJECT (core_audio->osxbuf,
+ "Failed to remove render callback %d", (int) status);
+ }
+
+ /* Remove the RenderNotify too */
+ status = AudioUnitRemoveRenderNotify (core_audio->audiounit,
+ (AURenderCallback) gst_core_audio_render_notify, core_audio);
+
+ if (status) {
+ GST_WARNING_OBJECT (core_audio->osxbuf,
+ "Failed to remove render notify callback %d", (int) status);
+ }
+
+ /* We're deactivated.. */
+ core_audio->io_proc_needs_deactivation = FALSE;
+ core_audio->io_proc_active = FALSE;
+}
+
+OSStatus
+gst_core_audio_render_notify (GstCoreAudio * core_audio,
+ AudioUnitRenderActionFlags * ioActionFlags,
+ const AudioTimeStamp * inTimeStamp,
+ unsigned int inBusNumber,
+ unsigned int inNumberFrames, AudioBufferList * ioData)
+{
+ /* Before rendering a frame, we get the PreRender notification.
+ * Here, we detach the RenderCallback if we've been paused.
+ *
+ * This is necessary (rather than just directly detaching it) to
+ * work around some thread-safety issues in CoreAudio
+ */
+ if ((*ioActionFlags) & kAudioUnitRenderAction_PreRender) {
+ if (core_audio->io_proc_needs_deactivation) {
+ gst_core_audio_remove_render_callback (core_audio);
+ }
+ }
+
+ return noErr;
+}
+
+gboolean
+gst_core_audio_io_proc_start (GstCoreAudio * core_audio)
+{
+ OSStatus status;
+ AURenderCallbackStruct input;
+ AudioUnitPropertyID callback_type;
+
+ GST_DEBUG_OBJECT (core_audio->osxbuf,
+ "osx ring buffer start ioproc: %p device_id %lu",
+ core_audio->element->io_proc, (gulong) core_audio->device_id);
+ if (!core_audio->io_proc_active) {
+ callback_type = core_audio->is_src ?
+ kAudioOutputUnitProperty_SetInputCallback :
+ kAudioUnitProperty_SetRenderCallback;
+
+ input.inputProc = (AURenderCallback) core_audio->element->io_proc;
+ input.inputProcRefCon = core_audio->osxbuf;
+
+ status = AudioUnitSetProperty (core_audio->audiounit, callback_type, kAudioUnitScope_Global, 0, /* N/A for global */
+ &input, sizeof (input));
+
+ if (status) {
+ GST_ERROR_OBJECT (core_audio->osxbuf,
+ "AudioUnitSetProperty failed: %d", (int) status);
+ return FALSE;
+ }
+ // ### does it make sense to do this notify stuff for input mode?
+ status = AudioUnitAddRenderNotify (core_audio->audiounit,
+ (AURenderCallback) gst_core_audio_render_notify, core_audio);
+
+ if (status) {
+ GST_ERROR_OBJECT (core_audio->osxbuf,
+ "AudioUnitAddRenderNotify failed %d", (int) status);
+ return FALSE;
+ }
+ core_audio->io_proc_active = TRUE;
+ }
+
+ core_audio->io_proc_needs_deactivation = FALSE;
+
+ status = AudioOutputUnitStart (core_audio->audiounit);
+ if (status) {
+ GST_ERROR_OBJECT (core_audio->osxbuf, "AudioOutputUnitStart failed: %d",
+ (int) status);
+ return FALSE;
+ }
+ return TRUE;
+}
+
+gboolean
+gst_core_audio_io_proc_stop (GstCoreAudio * core_audio)
+{
+ OSErr status;
+
+ GST_DEBUG_OBJECT (core_audio->osxbuf,
+ "osx ring buffer stop ioproc: %p device_id %lu",
+ core_audio->element->io_proc, (gulong) core_audio->device_id);
+
+ status = AudioOutputUnitStop (core_audio->audiounit);
+ if (status) {
+ GST_WARNING_OBJECT (core_audio->osxbuf,
+ "AudioOutputUnitStop failed: %d", (int) status);
+ }
+ // ###: why is it okay to directly remove from here but not from pause() ?
+ if (core_audio->io_proc_active) {
+ gst_core_audio_remove_render_callback (core_audio);
+ }
+ return TRUE;
+}
+
+AudioBufferList *
+buffer_list_alloc (int channels, int size)
+{
+ AudioBufferList *list;
+ int total_size;
+ int n;
+
+ total_size = sizeof (AudioBufferList) + 1 * sizeof (AudioBuffer);
+ list = (AudioBufferList *) g_malloc (total_size);
+
+ list->mNumberBuffers = 1;
+ for (n = 0; n < (int) list->mNumberBuffers; ++n) {
+ list->mBuffers[n].mNumberChannels = channels;
+ list->mBuffers[n].mDataByteSize = size;
+ list->mBuffers[n].mData = g_malloc (size);
+ }
+
+ return list;
+}
+
+void
+buffer_list_free (AudioBufferList * list)
+{
+ int n;
+
+ for (n = 0; n < (int) list->mNumberBuffers; ++n) {
+ if (list->mBuffers[n].mData)
+ g_free (list->mBuffers[n].mData);
+ }
+
+ g_free (list);
+}
+
+gboolean
+gst_core_audio_bind_device (GstCoreAudio * core_audio)
+{
+ OSStatus status;
+
+ /* Specify which device we're using. */
+ GST_DEBUG_OBJECT (core_audio->osxbuf, "Bind AudioUnit to device %d",
+ (int) core_audio->device_id);
+ status = AudioUnitSetProperty (core_audio->audiounit,
+ kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0,
+ &core_audio->device_id, sizeof (AudioDeviceID));
+ if (status) {
+ GST_ERROR_OBJECT (core_audio->osxbuf, "Failed binding to device: %d",
+ (int) status);
+ goto audiounit_error;
+ }
+ return TRUE;
+
+audiounit_error:
+ if (core_audio->recBufferList) {
+ buffer_list_free (core_audio->recBufferList);
+ core_audio->recBufferList = NULL;
+ }
+ return FALSE;
+}
+
+gboolean
+gst_core_audio_set_channels_layout (GstCoreAudio * core_audio,
+ gint channels, GstCaps * caps)
+{
+ /* Configure the output stream and allocate ringbuffer memory */
+ AudioChannelLayout *layout = NULL;
+ OSStatus status;
+ int layoutSize, element, i;
+ AudioUnitScope scope;
+ GstStructure *structure;
+ GstAudioChannelPosition *positions = NULL;
+ guint64 channel_mask;
+
+ /* Describe channels */
+ layoutSize = sizeof (AudioChannelLayout) +
+ channels * sizeof (AudioChannelDescription);
+ layout = g_malloc (layoutSize);
+
+ structure = gst_caps_get_structure (caps, 0);
+ if (gst_structure_get (structure, "channel-mask", GST_TYPE_BITMASK,
+ &channel_mask, NULL)) {
+ positions = g_new (GstAudioChannelPosition, channels);
+ gst_audio_channel_positions_from_mask (channels, channel_mask, positions);
+ }
+
+ layout->mChannelLayoutTag = kAudioChannelLayoutTag_UseChannelDescriptions;
+ layout->mChannelBitmap = 0; /* Not used */
+ layout->mNumberChannelDescriptions = channels;
+ for (i = 0; i < channels; i++) {
+ if (positions) {
+ layout->mChannelDescriptions[i].mChannelLabel =
+ gst_audio_channel_position_to_coreaudio_channel_label (positions[i],
+ i);
+ } else {
+ /* Discrete channel numbers are ORed into this */
+ layout->mChannelDescriptions[i].mChannelLabel =
+ kAudioChannelLabel_Discrete_0 | i;
+ }
+
+ /* Others unused */
+ layout->mChannelDescriptions[i].mChannelFlags = 0;
+ layout->mChannelDescriptions[i].mCoordinates[0] = 0.f;
+ layout->mChannelDescriptions[i].mCoordinates[1] = 0.f;
+ layout->mChannelDescriptions[i].mCoordinates[2] = 0.f;
+ }
+
+ if (positions) {
+ g_free (positions);
+ positions = NULL;
+ }
+
+ scope = core_audio->is_src ? kAudioUnitScope_Output : kAudioUnitScope_Input;
+ element = core_audio->is_src ? 1 : 0;
+
+ if (layoutSize) {
+ status = AudioUnitSetProperty (core_audio->audiounit,
+ kAudioUnitProperty_AudioChannelLayout,
+ scope, element, layout, layoutSize);
+ if (status) {
+ GST_WARNING_OBJECT (core_audio->osxbuf,
+ "Failed to set output channel layout: %d", (int) status);
+ return FALSE;
+ }
+ }
+
+ g_free (layout);
+ return TRUE;
+}
+
+gboolean
+gst_core_audio_set_format (GstCoreAudio * core_audio,
+ AudioStreamBasicDescription format)
+{
+ /* Configure the output stream and allocate ringbuffer memory */
+ OSStatus status;
+ UInt32 propertySize;
+ int element;
+ AudioUnitScope scope;
+
+ GST_DEBUG_OBJECT (core_audio->osxbuf, "Setting format for AudioUnit");
+
+ scope = core_audio->is_src ? kAudioUnitScope_Output : kAudioUnitScope_Input;
+ element = core_audio->is_src ? 1 : 0;
+
+ propertySize = sizeof (AudioStreamBasicDescription);
+ status = AudioUnitSetProperty (core_audio->audiounit,
+ kAudioUnitProperty_StreamFormat, scope, element, &format, propertySize);
+
+ if (status) {
+ GST_WARNING_OBJECT (core_audio->osxbuf,
+ "Failed to set audio description: %d", (int) status);
+ return FALSE;;
+ }
+
+ return TRUE;
+}
+
+gboolean
+gst_core_audio_open_device (GstCoreAudio * core_audio, OSType sub_type,
+ const gchar * adesc)
+{
+ AudioComponentDescription desc;
+ AudioComponent comp;
+ OSStatus status;
+ AudioUnit unit;
+ UInt32 enableIO;
+
+ desc.componentType = kAudioUnitType_Output;
+ desc.componentSubType = sub_type;
+ desc.componentManufacturer = kAudioUnitManufacturer_Apple;
+ desc.componentFlags = 0;
+ desc.componentFlagsMask = 0;
+
+ comp = AudioComponentFindNext (NULL, &desc);
+
+ if (comp == NULL) {
+ GST_WARNING_OBJECT (core_audio->osxbuf, "Couldn't find %s component",
+ adesc);
+ return FALSE;
+ }
+
+ status = AudioComponentInstanceNew (comp, &unit);
+
+ if (status) {
+ GST_ERROR_OBJECT (core_audio->osxbuf, "Couldn't open %s component %d",
+ adesc, (int) status);
+ return FALSE;
+ }
+
+ if (core_audio->is_src) {
+ /* enable input */
+ enableIO = 1;
+ status = AudioUnitSetProperty (unit, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input, 1, /* 1 = input element */
+ &enableIO, sizeof (enableIO));
+
+ if (status) {
+ AudioComponentInstanceDispose (unit);
+ GST_WARNING_OBJECT (core_audio->osxbuf, "Failed to enable input: %d",
+ (int) status);
+ return FALSE;
+ }
+
+ /* disable output */
+ enableIO = 0;
+ status = AudioUnitSetProperty (unit, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Output, 0, /* 0 = output element */
+ &enableIO, sizeof (enableIO));
+
+ if (status) {
+ AudioComponentInstanceDispose (unit);
+ GST_WARNING_OBJECT (core_audio->osxbuf, "Failed to disable output: %d",
+ (int) status);
+ return FALSE;
+ }
+ }
+
+ GST_DEBUG_OBJECT (core_audio->osxbuf, "Created %s AudioUnit: %p", adesc,
+ unit);
+ core_audio->audiounit = unit;
+ return TRUE;
+}
+
+AudioChannelLabel
+gst_audio_channel_position_to_coreaudio_channel_label (GstAudioChannelPosition
+ position, int channel)
+{
+ switch (position) {
+ case GST_AUDIO_CHANNEL_POSITION_NONE:
+ return kAudioChannelLabel_Discrete_0 | channel;
+ case GST_AUDIO_CHANNEL_POSITION_MONO:
+ return kAudioChannelLabel_Mono;
+ case GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT:
+ return kAudioChannelLabel_Left;
+ case GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT:
+ return kAudioChannelLabel_Right;
+ case GST_AUDIO_CHANNEL_POSITION_REAR_CENTER:
+ return kAudioChannelLabel_CenterSurround;
+ case GST_AUDIO_CHANNEL_POSITION_REAR_LEFT:
+ return kAudioChannelLabel_LeftSurround;
+ case GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT:
+ return kAudioChannelLabel_RightSurround;
+ case GST_AUDIO_CHANNEL_POSITION_LFE1:
+ return kAudioChannelLabel_LFEScreen;
+ case GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER:
+ return kAudioChannelLabel_Center;
+ case GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER:
+ return kAudioChannelLabel_Center; // ???
+ case GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER:
+ return kAudioChannelLabel_Center; // ???
+ case GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT:
+ return kAudioChannelLabel_LeftSurroundDirect;
+ case GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT:
+ return kAudioChannelLabel_RightSurroundDirect;
+ default:
+ return kAudioChannelLabel_Unknown;
+ }
+}
+
+void
+gst_core_audio_dump_channel_layout (AudioChannelLayout * channel_layout)
+{
+ UInt32 i;
+
+ GST_DEBUG ("mChannelLayoutTag: 0x%lx",
+ (unsigned long) channel_layout->mChannelLayoutTag);
+ GST_DEBUG ("mChannelBitmap: 0x%lx",
+ (unsigned long) channel_layout->mChannelBitmap);
+ GST_DEBUG ("mNumberChannelDescriptions: %lu",
+ (unsigned long) channel_layout->mNumberChannelDescriptions);
+ for (i = 0; i < channel_layout->mNumberChannelDescriptions; i++) {
+ AudioChannelDescription *channel_desc =
+ &channel_layout->mChannelDescriptions[i];
+ GST_DEBUG (" mChannelLabel: 0x%lx mChannelFlags: 0x%lx "
+ "mCoordinates[0]: %f mCoordinates[1]: %f "
+ "mCoordinates[2]: %f",
+ (unsigned long) channel_desc->mChannelLabel,
+ (unsigned long) channel_desc->mChannelFlags,
+ channel_desc->mCoordinates[0], channel_desc->mCoordinates[1],
+ channel_desc->mCoordinates[2]);
+ }
+}
diff --git a/sys/osxaudio/gstosxcoreaudiocommon.h b/sys/osxaudio/gstosxcoreaudiocommon.h
new file mode 100755
index 0000000..e9fbb8e
--- /dev/null
+++ b/sys/osxaudio/gstosxcoreaudiocommon.h
@@ -0,0 +1,65 @@
+/*
+ * GStreamer
+ * Copyright (C) 2012-2013 Fluendo S.A. <support@fluendo.com>
+ * Authors: Josep Torra Vallès <josep@fluendo.com>
+ * Andoni Morales Alastruey <amorales@fluendo.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include "gstosxcoreaudio.h"
+#include <gst/audio/audio-channels.h>
+
+typedef struct
+{
+ GMutex lock;
+ GCond cond;
+} PropertyMutex;
+
+gboolean gst_core_audio_bind_device (GstCoreAudio *core_audio);
+
+void gst_core_audio_dump_channel_layout (AudioChannelLayout * channel_layout);
+
+void gst_core_audio_remove_render_callback (GstCoreAudio * core_audio);
+
+gboolean gst_core_audio_io_proc_start (GstCoreAudio * core_audio);
+
+gboolean gst_core_audio_io_proc_stop (GstCoreAudio * core_audio);
+
+AudioBufferList * buffer_list_alloc (int channels, int size);
+
+void buffer_list_free (AudioBufferList * list);
+
+gboolean gst_core_audio_set_format (GstCoreAudio * core_audio,
+ AudioStreamBasicDescription format);
+
+gboolean gst_core_audio_set_channels_layout (GstCoreAudio * core_audio,
+ gint channels, GstCaps * caps);
+
+gboolean gst_core_audio_open_device (GstCoreAudio *core_audio,
+ OSType sub_type,
+ const gchar *adesc);
+
+OSStatus gst_core_audio_render_notify (GstCoreAudio * core_audio,
+ AudioUnitRenderActionFlags * ioActionFlags,
+ const AudioTimeStamp * inTimeStamp,
+ unsigned int inBusNumber,
+ unsigned int inNumberFrames,
+ AudioBufferList * ioData);
+
+AudioChannelLabel gst_audio_channel_position_to_coreaudio_channel_label (GstAudioChannelPosition position, int channel);
+
diff --git a/sys/osxaudio/gstosxcoreaudiohal.c b/sys/osxaudio/gstosxcoreaudiohal.c
new file mode 100755
index 0000000..fde41f3
--- /dev/null
+++ b/sys/osxaudio/gstosxcoreaudiohal.c
@@ -0,0 +1,1254 @@
+/*
+ * GStreamer
+ * Copyright (C) 2012-2013 Fluendo S.A. <support@fluendo.com>
+ * Authors: Josep Torra Vallès <josep@fluendo.com>
+ * Andoni Morales Alastruey <amorales@fluendo.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include <unistd.h> /* for getpid */
+#include "gstosxaudiosink.h"
+
+static inline gboolean
+_audio_system_set_runloop (CFRunLoopRef runLoop)
+{
+ OSStatus status = noErr;
+
+ gboolean res = FALSE;
+
+ AudioObjectPropertyAddress runloopAddress = {
+ kAudioHardwarePropertyRunLoop,
+ kAudioObjectPropertyScopeGlobal,
+ kAudioObjectPropertyElementMaster
+ };
+
+ status = AudioObjectSetPropertyData (kAudioObjectSystemObject,
+ &runloopAddress, 0, NULL, sizeof (CFRunLoopRef), &runLoop);
+ if (status == noErr) {
+ res = TRUE;
+ } else {
+ GST_ERROR ("failed to set runloop to %p: %d", runLoop, (int) status);
+ }
+
+ return res;
+}
+
+static inline AudioDeviceID
+_audio_system_get_default_output (void)
+{
+ OSStatus status = noErr;
+ UInt32 propertySize = sizeof (AudioDeviceID);
+ AudioDeviceID device_id = kAudioDeviceUnknown;
+
+ AudioObjectPropertyAddress defaultDeviceAddress = {
+ kAudioHardwarePropertyDefaultOutputDevice,
+ kAudioDevicePropertyScopeOutput,
+ kAudioObjectPropertyElementMaster
+ };
+
+ status = AudioObjectGetPropertyData (kAudioObjectSystemObject,
+ &defaultDeviceAddress, 0, NULL, &propertySize, &device_id);
+ if (status != noErr) {
+ GST_ERROR ("failed getting default output device: %d", (int) status);
+ }
+
+ return device_id;
+}
+
+static inline AudioDeviceID *
+_audio_system_get_devices (gint * ndevices)
+{
+ OSStatus status = noErr;
+ UInt32 propertySize = 0;
+ AudioDeviceID *devices = NULL;
+
+ AudioObjectPropertyAddress audioDevicesAddress = {
+ kAudioHardwarePropertyDevices,
+ kAudioDevicePropertyScopeOutput,
+ kAudioObjectPropertyElementMaster
+ };
+
+ status = AudioObjectGetPropertyDataSize (kAudioObjectSystemObject,
+ &audioDevicesAddress, 0, NULL, &propertySize);
+ if (status != noErr) {
+ GST_WARNING ("failed getting number of devices: %d", (int) status);
+ return NULL;
+ }
+
+ *ndevices = propertySize / sizeof (AudioDeviceID);
+
+ devices = (AudioDeviceID *) g_malloc (propertySize);
+ if (devices) {
+ status = AudioObjectGetPropertyData (kAudioObjectSystemObject,
+ &audioDevicesAddress, 0, NULL, &propertySize, devices);
+ if (status != noErr) {
+ GST_WARNING ("failed getting the list of devices: %d", (int) status);
+ g_free (devices);
+ *ndevices = 0;
+ return NULL;
+ }
+ }
+ return devices;
+}
+
+static inline gboolean
+_audio_device_is_alive (AudioDeviceID device_id)
+{
+ OSStatus status = noErr;
+ int alive = FALSE;
+ UInt32 propertySize = sizeof (alive);
+
+ AudioObjectPropertyAddress audioDeviceAliveAddress = {
+ kAudioDevicePropertyDeviceIsAlive,
+ kAudioDevicePropertyScopeOutput,
+ kAudioObjectPropertyElementMaster
+ };
+
+ status = AudioObjectGetPropertyData (device_id,
+ &audioDeviceAliveAddress, 0, NULL, &propertySize, &alive);
+ if (status != noErr) {
+ alive = FALSE;
+ }
+
+ return alive;
+}
+
+static inline guint
+_audio_device_get_latency (AudioDeviceID device_id)
+{
+ OSStatus status = noErr;
+ UInt32 latency = 0;
+ UInt32 propertySize = sizeof (latency);
+
+ AudioObjectPropertyAddress audioDeviceLatencyAddress = {
+ kAudioDevicePropertyLatency,
+ kAudioDevicePropertyScopeOutput,
+ kAudioObjectPropertyElementMaster
+ };
+
+ status = AudioObjectGetPropertyData (device_id,
+ &audioDeviceLatencyAddress, 0, NULL, &propertySize, &latency);
+ if (status != noErr) {
+ GST_ERROR ("failed to get latency: %d", (int) status);
+ latency = -1;
+ }
+
+ return latency;
+}
+
+static inline pid_t
+_audio_device_get_hog (AudioDeviceID device_id)
+{
+ OSStatus status = noErr;
+ pid_t hog_pid;
+ UInt32 propertySize = sizeof (hog_pid);
+
+ AudioObjectPropertyAddress audioDeviceHogModeAddress = {
+ kAudioDevicePropertyHogMode,
+ kAudioDevicePropertyScopeOutput,
+ kAudioObjectPropertyElementMaster
+ };
+
+ status = AudioObjectGetPropertyData (device_id,
+ &audioDeviceHogModeAddress, 0, NULL, &propertySize, &hog_pid);
+ if (status != noErr) {
+ GST_ERROR ("failed to get hog: %d", (int) status);
+ hog_pid = -1;
+ }
+
+ return hog_pid;
+}
+
+static inline gboolean
+_audio_device_set_hog (AudioDeviceID device_id, pid_t hog_pid)
+{
+ OSStatus status = noErr;
+ UInt32 propertySize = sizeof (hog_pid);
+ gboolean res = FALSE;
+
+ AudioObjectPropertyAddress audioDeviceHogModeAddress = {
+ kAudioDevicePropertyHogMode,
+ kAudioDevicePropertyScopeOutput,
+ kAudioObjectPropertyElementMaster
+ };
+
+ status = AudioObjectSetPropertyData (device_id,
+ &audioDeviceHogModeAddress, 0, NULL, propertySize, &hog_pid);
+
+ if (status == noErr) {
+ res = TRUE;
+ } else {
+ GST_ERROR ("failed to set hog: %d", (int) status);
+ }
+
+ return res;
+}
+
+static inline gboolean
+_audio_device_set_mixing (AudioDeviceID device_id, gboolean enable_mix)
+{
+ OSStatus status = noErr;
+ UInt32 propertySize = 0, can_mix = enable_mix;
+ Boolean writable = FALSE;
+ gboolean res = FALSE;
+
+ AudioObjectPropertyAddress audioDeviceSupportsMixingAddress = {
+ kAudioDevicePropertySupportsMixing,
+ kAudioObjectPropertyScopeGlobal,
+ kAudioObjectPropertyElementMaster
+ };
+
+ if (AudioObjectHasProperty (device_id, &audioDeviceSupportsMixingAddress)) {
+ /* Set mixable to false if we are allowed to */
+ status = AudioObjectIsPropertySettable (device_id,
+ &audioDeviceSupportsMixingAddress, &writable);
+ if (status) {
+ GST_DEBUG ("AudioObjectIsPropertySettable: %d", (int) status);
+ }
+ status = AudioObjectGetPropertyDataSize (device_id,
+ &audioDeviceSupportsMixingAddress, 0, NULL, &propertySize);
+ if (status) {
+ GST_DEBUG ("AudioObjectGetPropertyDataSize: %d", (int) status);
+ }
+ status = AudioObjectGetPropertyData (device_id,
+ &audioDeviceSupportsMixingAddress, 0, NULL, &propertySize, &can_mix);
+ if (status) {
+ GST_DEBUG ("AudioObjectGetPropertyData: %d", (int) status);
+ }
+
+ if (status == noErr && writable) {
+ can_mix = enable_mix;
+ status = AudioObjectSetPropertyData (device_id,
+ &audioDeviceSupportsMixingAddress, 0, NULL, propertySize, &can_mix);
+ res = TRUE;
+ }
+
+ if (status != noErr) {
+ GST_ERROR ("failed to set mixmode: %d", (int) status);
+ }
+ } else {
+ GST_DEBUG ("property not found, mixing coudln't be changed");
+ }
+
+ return res;
+}
+
+static inline gchar *
+_audio_device_get_name (AudioDeviceID device_id)
+{
+ OSStatus status = noErr;
+ UInt32 propertySize = 0;
+ gchar *device_name = NULL;
+
+ AudioObjectPropertyAddress deviceNameAddress = {
+ kAudioDevicePropertyDeviceName,
+ kAudioDevicePropertyScopeOutput,
+ kAudioObjectPropertyElementMaster
+ };
+
+ /* Get the length of the device name */
+ status = AudioObjectGetPropertyDataSize (device_id,
+ &deviceNameAddress, 0, NULL, &propertySize);
+ if (status != noErr) {
+ goto beach;
+ }
+
+ /* Get the name of the device */
+ device_name = (gchar *) g_malloc (propertySize);
+ status = AudioObjectGetPropertyData (device_id,
+ &deviceNameAddress, 0, NULL, &propertySize, device_name);
+ if (status != noErr) {
+ g_free (device_name);
+ device_name = NULL;
+ }
+
+beach:
+ return device_name;
+}
+
+static inline gboolean
+_audio_device_has_output (AudioDeviceID device_id)
+{
+ OSStatus status = noErr;
+ UInt32 propertySize;
+
+ AudioObjectPropertyAddress streamsAddress = {
+ kAudioDevicePropertyStreams,
+ kAudioDevicePropertyScopeOutput,
+ kAudioObjectPropertyElementMaster
+ };
+
+ status = AudioObjectGetPropertyDataSize (device_id,
+ &streamsAddress, 0, NULL, &propertySize);
+ if (status != noErr) {
+ return FALSE;
+ }
+ if (propertySize == 0) {
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+AudioChannelLayout *
+gst_core_audio_audio_device_get_channel_layout (AudioDeviceID device_id)
+{
+ OSStatus status = noErr;
+ UInt32 propertySize = 0;
+ AudioChannelLayout *layout = NULL;
+
+ AudioObjectPropertyAddress channelLayoutAddress = {
+ kAudioDevicePropertyPreferredChannelLayout,
+ kAudioDevicePropertyScopeOutput,
+ kAudioObjectPropertyElementMaster
+ };
+
+ /* Get the length of the default channel layout structure */
+ status = AudioObjectGetPropertyDataSize (device_id,
+ &channelLayoutAddress, 0, NULL, &propertySize);
+ if (status != noErr) {
+ GST_ERROR ("failed to get prefered layout: %d", (int) status);
+ goto beach;
+ }
+
+ /* Get the default channel layout of the device */
+ layout = (AudioChannelLayout *) g_malloc (propertySize);
+ status = AudioObjectGetPropertyData (device_id,
+ &channelLayoutAddress, 0, NULL, &propertySize, layout);
+ if (status != noErr) {
+ GST_ERROR ("failed to get prefered layout: %d", (int) status);
+ goto failed;
+ }
+
+ if (layout->mChannelLayoutTag == kAudioChannelLayoutTag_UseChannelBitmap) {
+ /* bitmap defined channellayout */
+ status =
+ AudioFormatGetProperty (kAudioFormatProperty_ChannelLayoutForBitmap,
+ sizeof (UInt32), &layout->mChannelBitmap, &propertySize, layout);
+ if (status != noErr) {
+ GST_ERROR ("failed to get layout for bitmap: %d", (int) status);
+ goto failed;
+ }
+ } else if (layout->mChannelLayoutTag !=
+ kAudioChannelLayoutTag_UseChannelDescriptions) {
+ /* layouttags defined channellayout */
+ status = AudioFormatGetProperty (kAudioFormatProperty_ChannelLayoutForTag,
+ sizeof (AudioChannelLayoutTag), &layout->mChannelLayoutTag,
+ &propertySize, layout);
+ if (status != noErr) {
+ GST_ERROR ("failed to get layout for tag: %d", (int) status);
+ goto failed;
+ }
+ }
+
+ gst_core_audio_dump_channel_layout (layout);
+
+beach:
+ return layout;
+
+failed:
+ g_free (layout);
+ return NULL;
+}
+
+static inline AudioStreamID *
+_audio_device_get_streams (AudioDeviceID device_id, gint * nstreams)
+{
+ OSStatus status = noErr;
+ UInt32 propertySize = 0;
+ AudioStreamID *streams = NULL;
+
+ AudioObjectPropertyAddress streamsAddress = {
+ kAudioDevicePropertyStreams,
+ kAudioDevicePropertyScopeOutput,
+ kAudioObjectPropertyElementMaster
+ };
+
+ status = AudioObjectGetPropertyDataSize (device_id,
+ &streamsAddress, 0, NULL, &propertySize);
+ if (status != noErr) {
+ GST_WARNING ("failed getting number of streams: %d", (int) status);
+ return NULL;
+ }
+
+ *nstreams = propertySize / sizeof (AudioStreamID);
+ streams = (AudioStreamID *) g_malloc (propertySize);
+
+ if (streams) {
+ status = AudioObjectGetPropertyData (device_id,
+ &streamsAddress, 0, NULL, &propertySize, streams);
+ if (status != noErr) {
+ GST_WARNING ("failed getting the list of streams: %d", (int) status);
+ g_free (streams);
+ *nstreams = 0;
+ return NULL;
+ }
+ }
+
+ return streams;
+}
+
+static inline guint
+_audio_stream_get_latency (AudioStreamID stream_id)
+{
+ OSStatus status = noErr;
+ UInt32 latency;
+ UInt32 propertySize = sizeof (latency);
+
+ AudioObjectPropertyAddress latencyAddress = {
+ kAudioStreamPropertyLatency,
+ kAudioObjectPropertyScopeGlobal,
+ kAudioObjectPropertyElementMaster
+ };
+
+ status = AudioObjectGetPropertyData (stream_id,
+ &latencyAddress, 0, NULL, &propertySize, &latency);
+ if (status != noErr) {
+ GST_ERROR ("failed to get latency: %d", (int) status);
+ latency = -1;
+ }
+
+ return latency;
+}
+
+static inline gboolean
+_audio_stream_get_current_format (AudioStreamID stream_id,
+ AudioStreamBasicDescription * format)
+{
+ OSStatus status = noErr;
+ UInt32 propertySize = sizeof (AudioStreamBasicDescription);
+
+ AudioObjectPropertyAddress formatAddress = {
+ kAudioStreamPropertyPhysicalFormat,
+ kAudioObjectPropertyScopeGlobal,
+ kAudioObjectPropertyElementMaster
+ };
+
+ status = AudioObjectGetPropertyData (stream_id,
+ &formatAddress, 0, NULL, &propertySize, format);
+ if (status != noErr) {
+ GST_ERROR ("failed to get current format: %d", (int) status);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static inline gboolean
+_audio_stream_set_current_format (AudioStreamID stream_id,
+ AudioStreamBasicDescription format)
+{
+ OSStatus status = noErr;
+ UInt32 propertySize = sizeof (AudioStreamBasicDescription);
+
+ AudioObjectPropertyAddress formatAddress = {
+ kAudioStreamPropertyPhysicalFormat,
+ kAudioObjectPropertyScopeGlobal,
+ kAudioObjectPropertyElementMaster
+ };
+
+ status = AudioObjectSetPropertyData (stream_id,
+ &formatAddress, 0, NULL, propertySize, &format);
+ if (status != noErr) {
+ GST_ERROR ("failed to set current format: %d", (int) status);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static inline AudioStreamRangedDescription *
+_audio_stream_get_formats (AudioStreamID stream_id, gint * nformats)
+{
+ OSStatus status = noErr;
+ UInt32 propertySize = 0;
+ AudioStreamRangedDescription *formats = NULL;
+
+ AudioObjectPropertyAddress formatsAddress = {
+ kAudioStreamPropertyAvailablePhysicalFormats,
+ kAudioObjectPropertyScopeGlobal,
+ kAudioObjectPropertyElementMaster
+ };
+
+ status = AudioObjectGetPropertyDataSize (stream_id,
+ &formatsAddress, 0, NULL, &propertySize);
+ if (status != noErr) {
+ GST_WARNING ("failed getting number of stream formats: %d", (int) status);
+ return NULL;
+ }
+
+ *nformats = propertySize / sizeof (AudioStreamRangedDescription);
+
+ formats = (AudioStreamRangedDescription *) g_malloc (propertySize);
+ if (formats) {
+ status = AudioObjectGetPropertyData (stream_id,
+ &formatsAddress, 0, NULL, &propertySize, formats);
+ if (status != noErr) {
+ GST_WARNING ("failed getting the list of stream formats: %d",
+ (int) status);
+ g_free (formats);
+ *nformats = 0;
+ return NULL;
+ }
+ }
+ return formats;
+}
+
+static inline gboolean
+_audio_stream_is_spdif_avail (AudioStreamID stream_id)
+{
+ AudioStreamRangedDescription *formats;
+ gint i, nformats = 0;
+ gboolean res = FALSE;
+
+ formats = _audio_stream_get_formats (stream_id, &nformats);
+ GST_DEBUG ("found %d stream formats", nformats);
+
+ if (formats) {
+ GST_DEBUG ("formats supported on stream ID: %u", (unsigned) stream_id);
+
+ for (i = 0; i < nformats; i++) {
+ GST_DEBUG (" " CORE_AUDIO_FORMAT,
+ CORE_AUDIO_FORMAT_ARGS (formats[i].mFormat));
+
+ if (CORE_AUDIO_FORMAT_IS_SPDIF (formats[i])) {
+ res = TRUE;
+ }
+ }
+ g_free (formats);
+ }
+
+ return res;
+}
+
+static OSStatus
+_audio_stream_format_listener (AudioObjectID inObjectID,
+ UInt32 inNumberAddresses,
+ const AudioObjectPropertyAddress inAddresses[], void *inClientData)
+{
+ OSStatus status = noErr;
+ guint i;
+ PropertyMutex *prop_mutex = inClientData;
+
+ for (i = 0; i < inNumberAddresses; i++) {
+ if (inAddresses[i].mSelector == kAudioStreamPropertyPhysicalFormat) {
+ g_mutex_lock (&prop_mutex->lock);
+ g_cond_signal (&prop_mutex->cond);
+ g_mutex_unlock (&prop_mutex->lock);
+ break;
+ }
+ }
+ return (status);
+}
+
+static gboolean
+_audio_stream_change_format (AudioStreamID stream_id,
+ AudioStreamBasicDescription format)
+{
+ OSStatus status = noErr;
+ gint i;
+ gboolean ret = FALSE;
+ AudioStreamBasicDescription cformat;
+ PropertyMutex prop_mutex;
+
+ AudioObjectPropertyAddress formatAddress = {
+ kAudioStreamPropertyPhysicalFormat,
+ kAudioObjectPropertyScopeGlobal,
+ kAudioObjectPropertyElementMaster
+ };
+
+ GST_DEBUG ("setting stream format: " CORE_AUDIO_FORMAT,
+ CORE_AUDIO_FORMAT_ARGS (format));
+
+ /* Condition because SetProperty is asynchronous */
+ g_mutex_init (&prop_mutex.lock);
+ g_cond_init (&prop_mutex.cond);
+
+ g_mutex_lock (&prop_mutex.lock);
+
+ /* Install the property listener to serialize the operations */
+ status = AudioObjectAddPropertyListener (stream_id, &formatAddress,
+ _audio_stream_format_listener, (void *) &prop_mutex);
+ if (status != noErr) {
+ GST_ERROR ("AudioObjectAddPropertyListener failed: %d", (int) status);
+ goto done;
+ }
+
+ /* Change the format */
+ if (!_audio_stream_set_current_format (stream_id, format)) {
+ goto done;
+ }
+
+ /* The AudioObjectSetProperty is not only asynchronous
+ * it is also not atomic in its behaviour.
+ * Therefore we check 4 times before we really give up. */
+ for (i = 0; i < 4; i++) {
+ GTimeVal timeout;
+
+ g_get_current_time (&timeout);
+ g_time_val_add (&timeout, 250000);
+
+ if (!g_cond_wait_until (&prop_mutex.cond, &prop_mutex.lock, timeout.tv_sec)) {
+ GST_LOG ("timeout...");
+ }
+
+ if (_audio_stream_get_current_format (stream_id, &cformat)) {
+ GST_DEBUG ("current stream format: " CORE_AUDIO_FORMAT,
+ CORE_AUDIO_FORMAT_ARGS (cformat));
+
+ if (cformat.mSampleRate == format.mSampleRate &&
+ cformat.mFormatID == format.mFormatID &&
+ cformat.mFramesPerPacket == format.mFramesPerPacket) {
+ /* The right format is now active */
+ break;
+ }
+ }
+ }
+
+ if (cformat.mSampleRate != format.mSampleRate ||
+ cformat.mFormatID != format.mFormatID ||
+ cformat.mFramesPerPacket != format.mFramesPerPacket) {
+ goto done;
+ }
+
+ ret = TRUE;
+
+done:
+ /* Removing the property listener */
+ status = AudioObjectRemovePropertyListener (stream_id,
+ &formatAddress, _audio_stream_format_listener, (void *) &prop_mutex);
+ if (status != noErr) {
+ GST_ERROR ("AudioObjectRemovePropertyListener failed: %d", (int) status);
+ }
+ /* Destroy the lock and condition */
+ g_mutex_unlock (&prop_mutex.lock);
+ g_mutex_clear (&prop_mutex.lock);
+ g_cond_clear (&prop_mutex.cond);
+
+ return ret;
+}
+
+static OSStatus
+_audio_stream_hardware_changed_listener (AudioObjectID inObjectID,
+ UInt32 inNumberAddresses,
+ const AudioObjectPropertyAddress inAddresses[], void *inClientData)
+{
+ OSStatus status = noErr;
+ guint i;
+ GstCoreAudio *core_audio = inClientData;
+
+ for (i = 0; i < inNumberAddresses; i++) {
+ if (inAddresses[i].mSelector == kAudioDevicePropertyDeviceHasChanged) {
+ if (!gst_core_audio_audio_device_is_spdif_avail (core_audio->device_id)) {
+ GstOsxAudioSink *sink =
+ GST_OSX_AUDIO_SINK (GST_OBJECT_PARENT (core_audio->osxbuf));
+ GST_ELEMENT_ERROR (sink, RESOURCE, FAILED,
+ ("SPDIF output no longer available"),
+ ("Audio device is reporting that SPDIF output isn't available"));
+ }
+ break;
+ }
+ }
+ return (status);
+}
+
+static inline gboolean
+_monitorize_spdif (GstCoreAudio * core_audio)
+{
+ OSStatus status = noErr;
+ gboolean ret = TRUE;
+
+ AudioObjectPropertyAddress propAddress = {
+ kAudioDevicePropertyDeviceHasChanged,
+ kAudioObjectPropertyScopeGlobal,
+ kAudioObjectPropertyElementMaster
+ };
+
+ /* Install the property listener */
+ status = AudioObjectAddPropertyListener (core_audio->device_id,
+ &propAddress, _audio_stream_hardware_changed_listener,
+ (void *) core_audio);
+ if (status != noErr) {
+ GST_ERROR_OBJECT (core_audio->osxbuf,
+ "AudioObjectAddPropertyListener failed: %d", (int) status);
+ ret = FALSE;
+ }
+
+ return ret;
+}
+
+static inline gboolean
+_unmonitorize_spdif (GstCoreAudio * core_audio)
+{
+ OSStatus status = noErr;
+ gboolean ret = TRUE;
+
+ AudioObjectPropertyAddress propAddress = {
+ kAudioDevicePropertyDeviceHasChanged,
+ kAudioObjectPropertyScopeGlobal,
+ kAudioObjectPropertyElementMaster
+ };
+
+ /* Remove the property listener */
+ status = AudioObjectRemovePropertyListener (core_audio->device_id,
+ &propAddress, _audio_stream_hardware_changed_listener,
+ (void *) core_audio);
+ if (status != noErr) {
+ GST_ERROR_OBJECT (core_audio->osxbuf,
+ "AudioObjectRemovePropertyListener failed: %d", (int) status);
+ ret = FALSE;
+ }
+
+ return ret;
+}
+
+static inline gboolean
+_open_spdif (GstCoreAudio * core_audio)
+{
+ gboolean res = FALSE;
+ pid_t hog_pid, own_pid = getpid ();
+
+ /* We need the device in exclusive and disable the mixing */
+ hog_pid = _audio_device_get_hog (core_audio->device_id);
+
+ if (hog_pid != -1 && hog_pid != own_pid) {
+ GST_DEBUG_OBJECT (core_audio,
+ "device is currently in use by another application");
+ goto done;
+ }
+
+ if (_audio_device_set_hog (core_audio->device_id, own_pid)) {
+ core_audio->hog_pid = own_pid;
+ }
+
+ if (_audio_device_set_mixing (core_audio->device_id, FALSE)) {
+ GST_DEBUG_OBJECT (core_audio, "disabled mixing on the device");
+ core_audio->disabled_mixing = TRUE;
+ }
+
+ res = TRUE;
+done:
+ return res;
+}
+
+static inline gboolean
+_close_spdif (GstCoreAudio * core_audio)
+{
+ pid_t hog_pid;
+
+ _unmonitorize_spdif (core_audio);
+
+ if (core_audio->revert_format) {
+ if (!_audio_stream_change_format (core_audio->stream_id,
+ core_audio->original_format)) {
+ GST_WARNING_OBJECT (core_audio->osxbuf, "Format revert failed");
+ }
+ core_audio->revert_format = FALSE;
+ }
+
+ if (core_audio->disabled_mixing) {
+ _audio_device_set_mixing (core_audio->device_id, TRUE);
+ core_audio->disabled_mixing = FALSE;
+ }
+
+ if (core_audio->hog_pid != -1) {
+ hog_pid = _audio_device_get_hog (core_audio->device_id);
+ if (hog_pid == getpid ()) {
+ if (_audio_device_set_hog (core_audio->device_id, -1)) {
+ core_audio->hog_pid = -1;
+ }
+ }
+ }
+
+ return TRUE;
+}
+
+static OSStatus
+_io_proc_spdif (AudioDeviceID inDevice,
+ const AudioTimeStamp * inNow,
+ const void *inInputData,
+ const AudioTimeStamp * inTimestamp,
+ AudioBufferList * bufferList,
+ const AudioTimeStamp * inOutputTime, GstCoreAudio * core_audio)
+{
+ OSStatus status;
+
+ status = core_audio->element->io_proc (core_audio->osxbuf, NULL, inTimestamp,
+ 0, 0, bufferList);
+
+ return status;
+}
+
+static inline gboolean
+_acquire_spdif (GstCoreAudio * core_audio, AudioStreamBasicDescription format)
+{
+ AudioStreamID *streams = NULL;
+ gint i, j, nstreams = 0;
+ gboolean ret = FALSE;
+
+ if (!_open_spdif (core_audio))
+ goto done;
+
+ streams = _audio_device_get_streams (core_audio->device_id, &nstreams);
+
+ for (i = 0; i < nstreams; i++) {
+ AudioStreamRangedDescription *formats = NULL;
+ gint nformats = 0;
+
+ formats = _audio_stream_get_formats (streams[i], &nformats);
+
+ if (formats) {
+ gboolean is_spdif = FALSE;
+
+ /* Check if one of the supported formats is a digital format */
+ for (j = 0; j < nformats; j++) {
+ if (CORE_AUDIO_FORMAT_IS_SPDIF (formats[j])) {
+ is_spdif = TRUE;
+ break;
+ }
+ }
+
+ if (is_spdif) {
+ /* if this stream supports a digital (cac3) format,
+ * then go set it. */
+ gint requested_rate_format = -1;
+ gint current_rate_format = -1;
+ gint backup_rate_format = -1;
+
+ core_audio->stream_id = streams[i];
+ core_audio->stream_idx = i;
+
+ if (!core_audio->revert_format) {
+ if (!_audio_stream_get_current_format (core_audio->stream_id,
+ &core_audio->original_format)) {
+ GST_WARNING_OBJECT (core_audio->osxbuf,
+ "format could not be saved");
+ g_free (formats);
+ continue;
+ }
+ core_audio->revert_format = TRUE;
+ }
+
+ for (j = 0; j < nformats; j++) {
+ if (CORE_AUDIO_FORMAT_IS_SPDIF (formats[j])) {
+ GST_LOG_OBJECT (core_audio->osxbuf,
+ "found stream format: " CORE_AUDIO_FORMAT,
+ CORE_AUDIO_FORMAT_ARGS (formats[j].mFormat));
+
+ if (formats[j].mFormat.mSampleRate == format.mSampleRate) {
+ requested_rate_format = j;
+ break;
+ } else if (formats[j].mFormat.mSampleRate ==
+ core_audio->original_format.mSampleRate) {
+ current_rate_format = j;
+ } else {
+ if (backup_rate_format < 0 ||
+ formats[j].mFormat.mSampleRate >
+ formats[backup_rate_format].mFormat.mSampleRate) {
+ backup_rate_format = j;
+ }
+ }
+ }
+ }
+
+ if (requested_rate_format >= 0) {
+ /* We prefer to output at the rate of the original audio */
+ core_audio->stream_format = formats[requested_rate_format].mFormat;
+ } else if (current_rate_format >= 0) {
+ /* If not possible, we will try to use the current rate */
+ core_audio->stream_format = formats[current_rate_format].mFormat;
+ } else {
+ /* And if we have to, any digital format will be just
+ * fine (highest rate possible) */
+ core_audio->stream_format = formats[backup_rate_format].mFormat;
+ }
+ }
+ g_free (formats);
+ }
+ }
+ g_free (streams);
+
+ GST_DEBUG_OBJECT (core_audio,
+ "original stream format: " CORE_AUDIO_FORMAT,
+ CORE_AUDIO_FORMAT_ARGS (core_audio->original_format));
+
+ if (!_audio_stream_change_format (core_audio->stream_id,
+ core_audio->stream_format))
+ goto done;
+
+ ret = TRUE;
+
+done:
+ return ret;
+}
+
+static inline void
+_remove_render_spdif_callback (GstCoreAudio * core_audio)
+{
+ OSStatus status;
+
+ /* Deactivate the render callback by calling
+ * AudioDeviceDestroyIOProcID */
+ status =
+ AudioDeviceDestroyIOProcID (core_audio->device_id, core_audio->procID);
+ if (status != noErr) {
+ GST_ERROR_OBJECT (core_audio->osxbuf,
+ "AudioDeviceDestroyIOProcID failed: %d", (int) status);
+ }
+
+ GST_DEBUG_OBJECT (core_audio,
+ "osx ring buffer removed ioproc ID: %p device_id %lu",
+ core_audio->procID, (gulong) core_audio->device_id);
+
+ /* We're deactivated.. */
+ core_audio->procID = 0;
+ core_audio->io_proc_needs_deactivation = FALSE;
+ core_audio->io_proc_active = FALSE;
+}
+
+static inline gboolean
+_io_proc_spdif_start (GstCoreAudio * core_audio)
+{
+ OSErr status;
+
+ GST_DEBUG_OBJECT (core_audio,
+ "osx ring buffer start ioproc ID: %p device_id %lu",
+ core_audio->procID, (gulong) core_audio->device_id);
+
+ if (!core_audio->io_proc_active) {
+ /* Add IOProc callback */
+ status = AudioDeviceCreateIOProcID (core_audio->device_id,
+ (AudioDeviceIOProc) _io_proc_spdif,
+ (void *) core_audio, &core_audio->procID);
+ if (status != noErr) {
+ GST_ERROR_OBJECT (core_audio->osxbuf,
+ ":AudioDeviceCreateIOProcID failed: %d", (int) status);
+ return FALSE;
+ }
+ core_audio->io_proc_active = TRUE;
+ }
+
+ core_audio->io_proc_needs_deactivation = FALSE;
+
+ /* Start device */
+ status = AudioDeviceStart (core_audio->device_id, core_audio->procID);
+ if (status != noErr) {
+ GST_ERROR_OBJECT (core_audio->osxbuf,
+ "AudioDeviceStart failed: %d", (int) status);
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static inline gboolean
+_io_proc_spdif_stop (GstCoreAudio * core_audio)
+{
+ OSErr status;
+
+ /* Stop device */
+ status = AudioDeviceStop (core_audio->device_id, core_audio->procID);
+ if (status != noErr) {
+ GST_ERROR_OBJECT (core_audio->osxbuf,
+ "AudioDeviceStop failed: %d", (int) status);
+ }
+
+ GST_DEBUG_OBJECT (core_audio,
+ "osx ring buffer stop ioproc ID: %p device_id %lu",
+ core_audio->procID, (gulong) core_audio->device_id);
+
+ if (core_audio->io_proc_active) {
+ _remove_render_spdif_callback (core_audio);
+ }
+
+ _close_spdif (core_audio);
+
+ return TRUE;
+}
+
+
+/***********************
+ * Implementation *
+ **********************/
+
+static gboolean
+gst_core_audio_open_impl (GstCoreAudio * core_audio)
+{
+ /* The following is needed to instruct HAL to create their own
+ * thread to handle the notifications. */
+ _audio_system_set_runloop (NULL);
+
+ /* Create a HALOutput AudioUnit.
+ * This is the lowest-level output API that is actually sensibly
+ * usable (the lower level ones require that you do
+ * channel-remapping yourself, and the CoreAudio channel mapping
+ * is sufficiently complex that doing so would be very difficult)
+ *
+ * Note that for input we request an output unit even though
+ * we will do input with it.
+ * http://developer.apple.com/technotes/tn2002/tn2091.html
+ */
+ return gst_core_audio_open_device (core_audio, kAudioUnitSubType_HALOutput,
+ "HALOutput");
+}
+
+static gboolean
+gst_core_audio_start_processing_impl (GstCoreAudio * core_audio)
+{
+ if (core_audio->is_passthrough) {
+ return _io_proc_spdif_start (core_audio);
+ } else {
+ return gst_core_audio_io_proc_start (core_audio);
+ }
+}
+
+static gboolean
+gst_core_audio_pause_processing_impl (GstCoreAudio * core_audio)
+{
+ if (core_audio->is_passthrough) {
+ GST_DEBUG_OBJECT (core_audio,
+ "osx ring buffer pause ioproc ID: %p device_id %lu",
+ core_audio->procID, (gulong) core_audio->device_id);
+
+ if (core_audio->io_proc_active) {
+ _remove_render_spdif_callback (core_audio);
+ }
+ } else {
+ GST_DEBUG_OBJECT (core_audio,
+ "osx ring buffer pause ioproc: %p device_id %lu",
+ core_audio->element->io_proc, (gulong) core_audio->device_id);
+ if (core_audio->io_proc_active) {
+ /* CoreAudio isn't threadsafe enough to do this here;
+ * we must deactivate the render callback elsewhere. See:
+ * http://lists.apple.com/archives/Coreaudio-api/2006/Mar/msg00010.html
+ */
+ core_audio->io_proc_needs_deactivation = TRUE;
+ }
+ }
+ return TRUE;
+}
+
+static gboolean
+gst_core_audio_stop_processing_impl (GstCoreAudio * core_audio)
+{
+ if (core_audio->is_passthrough) {
+ _io_proc_spdif_stop (core_audio);
+ } else {
+ gst_core_audio_io_proc_stop (core_audio);
+ }
+
+ return TRUE;
+}
+
+static gboolean
+gst_core_audio_get_samples_and_latency_impl (GstCoreAudio * core_audio,
+ gdouble rate, guint * samples, gdouble * latency)
+{
+ OSStatus status;
+ UInt32 size = sizeof (double);
+
+ if (core_audio->is_passthrough) {
+ *samples = _audio_device_get_latency (core_audio->device_id);
+ *samples += _audio_stream_get_latency (core_audio->stream_id);
+ *latency = (double) *samples / rate;
+ } else {
+ status = AudioUnitGetProperty (core_audio->audiounit, kAudioUnitProperty_Latency, kAudioUnitScope_Global, 0, /* N/A for global */
+ latency, &size);
+
+ if (status) {
+ GST_WARNING_OBJECT (core_audio->osxbuf, "Failed to get latency: %d",
+ (int) status);
+ *samples = 0;
+ return FALSE;
+ }
+
+ *samples = *latency * rate;
+ }
+ return TRUE;
+}
+
+static gboolean
+gst_core_audio_initialize_impl (GstCoreAudio * core_audio,
+ AudioStreamBasicDescription format, GstCaps * caps,
+ gboolean is_passthrough, guint32 * frame_size)
+{
+ gboolean ret = FALSE;
+
+ core_audio->is_passthrough = is_passthrough;
+ if (is_passthrough) {
+ if (!_acquire_spdif (core_audio, format))
+ goto done;
+ _monitorize_spdif (core_audio);
+ } else {
+ OSStatus status;
+ UInt32 propertySize;
+
+ core_audio->stream_idx = 0;
+ if (!gst_core_audio_set_format (core_audio, format))
+ goto done;
+
+ if (!gst_core_audio_set_channels_layout (core_audio,
+ format.mChannelsPerFrame, caps))
+ goto done;
+
+ if (!gst_core_audio_bind_device (core_audio))
+ goto done;
+
+ if (core_audio->is_src) {
+ propertySize = sizeof (*frame_size);
+ status = AudioUnitGetProperty (core_audio->audiounit, kAudioDevicePropertyBufferFrameSize, kAudioUnitScope_Global, 0, /* N/A for global */
+ frame_size, &propertySize);
+
+ if (status) {
+ GST_WARNING_OBJECT (core_audio->osxbuf, "Failed to get frame size: %d",
+ (int) status);
+ goto done;
+ }
+ }
+ }
+
+ ret = TRUE;
+
+done:
+ if (ret) {
+ GST_DEBUG_OBJECT (core_audio, "osxbuf ring buffer acquired");
+ }
+ return ret;
+}
+
+static gboolean
+gst_core_audio_select_device_impl (AudioDeviceID * device_id)
+{
+ AudioDeviceID *devices = NULL;
+ AudioDeviceID default_device_id = 0;
+ AudioChannelLayout *channel_layout;
+ gint i, ndevices = 0;
+ gboolean res = FALSE;
+
+ devices = _audio_system_get_devices (&ndevices);
+
+ if (ndevices < 1) {
+ GST_ERROR ("no audio output devices found");
+ goto done;
+ }
+
+ GST_DEBUG ("found %d audio device(s)", ndevices);
+
+ for (i = 0; i < ndevices; i++) {
+ gchar *device_name;
+
+ if ((device_name = _audio_device_get_name (devices[i]))) {
+ if (!_audio_device_has_output (devices[i])) {
+ GST_DEBUG ("Input Device ID: %u Name: %s",
+ (unsigned) devices[i], device_name);
+ } else {
+ GST_DEBUG ("Output Device ID: %u Name: %s",
+ (unsigned) devices[i], device_name);
+
+ channel_layout =
+ gst_core_audio_audio_device_get_channel_layout (devices[i]);
+ if (channel_layout) {
+ gst_core_audio_dump_channel_layout (channel_layout);
+ g_free (channel_layout);
+ }
+ }
+
+ g_free (device_name);
+ }
+ }
+
+ /* Find the ID of the default output device */
+ default_device_id = _audio_system_get_default_output ();
+
+ /* Here we decide if selected device is valid or autoselect
+ * the default one when required */
+ if (*device_id == kAudioDeviceUnknown) {
+ if (default_device_id != kAudioDeviceUnknown) {
+ *device_id = default_device_id;
+ res = TRUE;
+ }
+ } else {
+ for (i = 0; i < ndevices; i++) {
+ if (*device_id == devices[i]) {
+ res = TRUE;
+ }
+ }
+
+ if (res && !_audio_device_is_alive (*device_id)) {
+ GST_ERROR ("Requested device not usable");
+ res = FALSE;
+ goto done;
+ }
+ }
+
+done:
+ g_free (devices);
+ return res;
+}
+
+static gboolean
+gst_core_audio_audio_device_is_spdif_avail_impl (AudioDeviceID device_id)
+{
+ AudioStreamID *streams = NULL;
+ gint i, nstreams = 0;
+ gboolean res = FALSE;
+
+ streams = _audio_device_get_streams (device_id, &nstreams);
+ GST_DEBUG ("found %d streams", nstreams);
+ if (streams) {
+ for (i = 0; i < nstreams; i++) {
+ if (_audio_stream_is_spdif_avail (streams[i])) {
+ res = TRUE;
+ }
+ }
+
+ g_free (streams);
+ }
+
+ return res;
+}
+
+static gboolean
+gst_core_audio_select_source_device_impl (AudioDeviceID * device_id)
+{
+ OSStatus status;
+ UInt32 propertySize;
+
+ if (*device_id == kAudioDeviceUnknown) {
+ /* If no specific device has been selected by the user, then pick the
+ * default device */
+ GST_DEBUG ("Selecting device for OSXAudioSrc");
+ propertySize = sizeof (*device_id);
+ status = AudioHardwareGetProperty (kAudioHardwarePropertyDefaultInputDevice,
+ &propertySize, device_id);
+
+ if (status) {
+ GST_WARNING ("AudioHardwareGetProperty returned %d", (int) status);
+ } else {
+ GST_DEBUG ("AudioHardwareGetProperty returned 0");
+ }
+
+ if (*device_id == kAudioDeviceUnknown) {
+ GST_WARNING ("AudioHardwareGetProperty: device_id is "
+ "kAudioDeviceUnknown");
+ }
+
+ GST_DEBUG ("AudioHardwareGetProperty: device_id is %lu", (long) *device_id);
+ }
+
+ return TRUE;
+}
diff --git a/sys/osxaudio/gstosxcoreaudioremoteio.c b/sys/osxaudio/gstosxcoreaudioremoteio.c
new file mode 100755
index 0000000..dd97aa1
--- /dev/null
+++ b/sys/osxaudio/gstosxcoreaudioremoteio.c
@@ -0,0 +1,126 @@
+/*
+ * GStreamer
+ * Copyright (C) 2012 Fluendo S.A. <support@fluendo.com>
+ * Authors: Andoni Morales Alastruey <amorales@fluendo.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ */
+
+#import <AudioUnit/AUComponent.h>
+
+static gboolean
+gst_core_audio_open_impl (GstCoreAudio * core_audio)
+{
+ return gst_core_audio_open_device (core_audio, kAudioUnitSubType_RemoteIO,
+ "RemoteIO");
+}
+
+static gboolean
+gst_core_audio_start_processing_impl (GstCoreAudio * core_audio)
+{
+ return gst_core_audio_io_proc_start (core_audio);
+}
+
+static gboolean
+gst_core_audio_pause_processing_impl (GstCoreAudio * core_audio)
+{
+ GST_DEBUG_OBJECT (core_audio,
+ "osx ring buffer pause ioproc: %p device_id %lu",
+ core_audio->element->io_proc, (gulong) core_audio->device_id);
+
+ if (core_audio->io_proc_active) {
+ /* CoreAudio isn't threadsafe enough to do this here;
+ * we must deactivate the render callback elsewhere. See:
+ * http://lists.apple.com/archives/Coreaudio-api/2006/Mar/msg00010.html
+ */
+ core_audio->io_proc_needs_deactivation = TRUE;
+ }
+ return TRUE;
+}
+
+static gboolean
+gst_core_audio_stop_processing_impl (GstCoreAudio * core_audio)
+{
+ gst_core_audio_io_proc_stop (core_audio);
+ return TRUE;
+}
+
+static gboolean
+gst_core_audio_get_samples_and_latency_impl (GstCoreAudio * core_audio,
+ gdouble rate, guint * samples, gdouble * latency)
+{
+ OSStatus status;
+ UInt32 size;
+
+ status = AudioUnitGetProperty (core_audio->audiounit, kAudioUnitProperty_Latency, kAudioUnitScope_Global, 0, /* N/A for global */
+ latency, &size);
+
+ if (status) {
+ GST_WARNING_OBJECT (core_audio, "Failed to get latency: %d", (int) status);
+ *samples = 0;
+ return FALSE;
+ }
+
+ *samples = *latency * rate;
+ return TRUE;
+}
+
+static gboolean
+gst_core_audio_initialize_impl (GstCoreAudio * core_audio,
+ AudioStreamBasicDescription format, GstCaps * caps,
+ gboolean is_passthrough, guint32 * frame_size)
+{
+ core_audio->is_passthrough = is_passthrough;
+ core_audio->stream_idx = 0;
+ if (!gst_core_audio_set_format (core_audio, format))
+ return FALSE;
+
+ /* FIXME: Use kAudioSessionProperty_CurrentHardwareSampleRate and
+ * kAudioSessionProperty_CurrentHardwareIOBufferDuration with property
+ * listeners to detect changes in screen locks.
+ * For now use the maximum value */
+ *frame_size = 4196;
+
+ GST_DEBUG_OBJECT (core_audio, "osxbuf ring buffer acquired");
+ return TRUE;
+}
+
+AudioChannelLayout *
+gst_core_audio_audio_device_get_channel_layout (AudioDeviceID device_id)
+{
+ return NULL;
+}
+
+static gboolean
+gst_core_audio_select_device_impl (AudioDeviceID * device_id)
+{
+ /* No device selection in iOS */
+ return TRUE;
+}
+
+static gboolean
+gst_core_audio_select_source_device_impl (AudioDeviceID * device_id)
+{
+ return TRUE;
+}
+
+static gboolean
+gst_core_audio_audio_device_is_spdif_avail_impl (AudioDeviceID device_id)
+{
+ /* No SPDIF in iOS */
+ return FALSE;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 02:12:52 +0000