/* * GStreamer * Copyright 2005,2006 Zaheer Abbas Merali * Copyright 2007 Pioneers of the Inevitable * * 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., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. * * The development of this code was made possible due to the involvement of Pioneers of i * the Inevitable, the creators of the Songbird Music player * */ /** * SECTION:element-plugin * * * Example launch line * * * gst-launch -v -m audiotestsrc ! audioconvert ! osxaudiosink * * * */ #ifdef HAVE_CONFIG_H # include #endif #include #include #include "gstosxaudiosink.h" #include "gstosxaudiosrc.h" #include "gstosxaudioelement.h" GST_DEBUG_CATEGORY_STATIC (osx_audiosink_debug); #define GST_CAT_DEFAULT osx_audiosink_debug static GstElementDetails gst_osx_audio_sink_details = GST_ELEMENT_DETAILS ("Audio Sink (OSX)", "Sink/Audio", "Output to a sound card in OS X", "Zaheer Abbas Merali "); /* Filter signals and args */ enum { /* FILL ME */ LAST_SIGNAL }; enum { ARG_0, ARG_DEVICE }; static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, GST_STATIC_CAPS ("audio/x-raw-float, " "endianness = (int) {" G_STRINGIFY (G_BYTE_ORDER) " }, " "signed = (boolean) { TRUE }, " "width = (int) 32, " "depth = (int) 32, " "rate = (int) 44100, " "channels = (int) 2") ); 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 GstCaps *gst_osx_audio_sink_getcaps (GstBaseSink * sink); static GstRingBuffer *gst_osx_audio_sink_create_ringbuffer (GstBaseAudioSink * sink); /*static GstCaps* gst_osx_audio_sink_getcaps (GstBaseSink * bsink);*/ static void gst_osx_audio_sink_osxelement_init (gpointer g_iface, gpointer iface_data); OSStatus gst_osx_audio_sink_io_proc (AudioDeviceID inDevice, const AudioTimeStamp * inNow, const AudioBufferList * inInputData, const AudioTimeStamp * inInputTime, AudioBufferList * outOutputData, const AudioTimeStamp * inOutputTime, void *inClientData); static void gst_osx_audio_sink_osxelement_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_DEBUG ("Adding static interface"); g_type_add_interface_static (type, GST_OSX_AUDIO_ELEMENT_TYPE, &osxelement_info); } GST_BOILERPLATE_FULL (GstOsxAudioSink, gst_osx_audio_sink, GstBaseAudioSink, GST_TYPE_BASE_AUDIO_SINK, gst_osx_audio_sink_osxelement_do_init); static void gst_osx_audio_sink_base_init (gpointer g_class) { GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&sink_factory)); gst_element_class_set_details (element_class, &gst_osx_audio_sink_details); } /* initialize the plugin's class */ static void gst_osx_audio_sink_class_init (GstOsxAudioSinkClass * klass) { GObjectClass *gobject_class; GstElementClass *gstelement_class; GstBaseSinkClass *gstbasesink_class; GstBaseAudioSinkClass *gstbaseaudiosink_class; gobject_class = (GObjectClass *) klass; gstelement_class = (GstElementClass *) klass; gstbasesink_class = (GstBaseSinkClass *) klass; gstbaseaudiosink_class = (GstBaseAudioSinkClass *) klass; parent_class = g_type_class_peek_parent (klass); gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_osx_audio_sink_set_property); gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_osx_audio_sink_get_property); 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)); gstbasesink_class->get_caps = GST_DEBUG_FUNCPTR (gst_osx_audio_sink_getcaps); gstbaseaudiosink_class->create_ringbuffer = GST_DEBUG_FUNCPTR (gst_osx_audio_sink_create_ringbuffer); } /* initialize the new element * instantiate pads and add them to element * set functions * initialize structure */ static void gst_osx_audio_sink_init (GstOsxAudioSink * sink, GstOsxAudioSinkClass * gclass) { /* GstElementClass *klass = GST_ELEMENT_GET_CLASS (sink); */ sink->ringbuffer = NULL; GST_DEBUG ("Initialising object"); gst_osx_audio_sink_create_ringbuffer (GST_BASE_AUDIO_SINK (sink)); } 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) { case ARG_DEVICE: if (sink->ringbuffer) sink->ringbuffer->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_sink_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstOsxAudioSink *sink = GST_OSX_AUDIO_SINK (object); int val = 0; switch (prop_id) { case ARG_DEVICE: if (sink->ringbuffer) val = sink->ringbuffer->device_id; g_value_set_int (value, val); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } /* GstElement vmethod implementations */ /* GstBaseSink vmethod implementations */ static GstCaps * gst_osx_audio_sink_getcaps (GstBaseSink * sink) { GstCaps *caps; GstOsxAudioSink *osxsink; OSStatus status; AudioValueRange rates[10]; UInt32 propertySize; int i; propertySize = sizeof (AudioValueRange) * 9; osxsink = GST_OSX_AUDIO_SINK (sink); caps = gst_caps_copy (gst_pad_get_pad_template_caps (GST_BASE_SINK_PAD (sink))); status = AudioDeviceGetProperty (osxsink->ringbuffer->device_id, 0, FALSE, kAudioDevicePropertyAvailableNominalSampleRates, &propertySize, &rates); GST_DEBUG ("Getting available sample rates: Status: %ld number of ranges: %lu", status, propertySize / sizeof (AudioValueRange)); for (i = 0; i < propertySize / sizeof (AudioValueRange); i++) { GST_LOG_OBJECT (osxsink, "Range from %f to %f", rates[i].mMinimum, rates[i].mMaximum); } return caps; } /* GstBaseAudioSink vmethod implementations */ static GstRingBuffer * gst_osx_audio_sink_create_ringbuffer (GstBaseAudioSink * sink) { GstOsxAudioSink *osxsink; osxsink = GST_OSX_AUDIO_SINK (sink); if (!osxsink->ringbuffer) { GST_DEBUG ("Creating ringbuffer"); osxsink->ringbuffer = g_object_new (GST_TYPE_OSX_RING_BUFFER, NULL); GST_DEBUG ("osx sink 0x%p element 0x%p ioproc 0x%p", osxsink, GST_OSX_AUDIO_ELEMENT_GET_INTERFACE (osxsink), (void *) gst_osx_audio_sink_io_proc); osxsink->ringbuffer->element = GST_OSX_AUDIO_ELEMENT_GET_INTERFACE (osxsink); } return GST_RING_BUFFER (osxsink->ringbuffer); } OSStatus gst_osx_audio_sink_io_proc (AudioDeviceID inDevice, const AudioTimeStamp * inNow, const AudioBufferList * inInputData, const AudioTimeStamp * inInputTime, AudioBufferList * outOutputData, const AudioTimeStamp * inOutputTime, void *inClientData) { GstOsxRingBuffer *buf = GST_OSX_RING_BUFFER (inClientData); guint8 *readptr; gint readseg; gint len; if (gst_ring_buffer_prepare_read (GST_RING_BUFFER (buf), &readseg, &readptr, &len)) { outOutputData->mBuffers[0].mDataByteSize = len; memcpy ((char *) outOutputData->mBuffers[0].mData, readptr, len); /* clear written samples */ gst_ring_buffer_clear (GST_RING_BUFFER (buf), readseg); /* we wrote one segment */ gst_ring_buffer_advance (GST_RING_BUFFER (buf), 1); } return 0; } static void gst_osx_audio_sink_osxelement_init (gpointer g_iface, gpointer iface_data) { GstOsxAudioElementInterface *iface = (GstOsxAudioElementInterface *) g_iface; iface->io_proc = gst_osx_audio_sink_io_proc; } /* entry point to initialize the plug-in * initialize the plug-in itself * register the element factories and pad templates * register the features * * exchange the string 'plugin' with your elemnt name */ static gboolean plugin_init (GstPlugin * plugin) { gboolean ret; ret = gst_element_register (plugin, "osxaudiosink", GST_RANK_PRIMARY, GST_TYPE_OSX_AUDIO_SINK); return ret && gst_element_register (plugin, "osxaudiosrc", GST_RANK_PRIMARY, GST_TYPE_OSX_AUDIO_SRC); } /* this is the structure that gstreamer looks for to register plugins * * exchange the strings 'plugin' and 'Template plugin' with you plugin name and * description */ GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, "osxaudio", "OSX Audio plugin", plugin_init, VERSION, "LGPL", "GStreamer", "http://gstreamer.net/")