| /* 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. |
| */ |
| |
| /** |
| * SECTION:element-openslessink |
| * @see_also: openslessrc |
| * |
| * This element renders raw audio samples using the OpenSL ES API in Android OS. |
| * |
| * <refsect2> |
| * <title>Example pipelines</title> |
| * |[ |
| * gst-launch -v filesrc location=music.ogg ! oggdemux ! vorbisdec ! audioconvert ! audioresample ! opeslessink |
| * ]| Play an Ogg/Vorbis file. |
| * </refsect2> |
| * |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| # include <config.h> |
| #endif |
| |
| #include "opensles.h" |
| #include "openslessink.h" |
| |
| GST_DEBUG_CATEGORY_STATIC (opensles_sink_debug); |
| #define GST_CAT_DEFAULT opensles_sink_debug |
| |
| enum |
| { |
| PROP_0, |
| PROP_VOLUME, |
| PROP_MUTE, |
| PROP_LAST |
| }; |
| |
| #define DEFAULT_VOLUME 1.0 |
| #define DEFAULT_MUTE FALSE |
| |
| |
| /* According to Android's NDK doc the following are the supported rates */ |
| #define RATES "8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100" |
| /* 48000 Hz is also claimed to be supported but the AudioFlinger downsampling |
| * doesn't seems to work properly so we relay GStreamer audioresample element |
| * to cope with this samplerate. */ |
| |
| static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink", |
| GST_PAD_SINK, |
| GST_PAD_ALWAYS, |
| GST_STATIC_CAPS ("audio/x-raw, " |
| "format = (string) { " GST_AUDIO_NE (S16) ", " GST_AUDIO_NE (U8) "}, " |
| "rate = (int) { " RATES "}, " "channels = (int) [1, 2]") |
| ); |
| |
| #define _do_init \ |
| GST_DEBUG_CATEGORY_INIT (opensles_sink_debug, "openslessink", 0, \ |
| "OpenSLES Sink"); |
| #define parent_class gst_opensles_sink_parent_class |
| G_DEFINE_TYPE_WITH_CODE (GstOpenSLESSink, gst_opensles_sink, |
| GST_TYPE_AUDIO_BASE_SINK, _do_init); |
| |
| static GstAudioRingBuffer * |
| gst_opensles_sink_create_ringbuffer (GstAudioBaseSink * base) |
| { |
| GstOpenSLESSink *sink = GST_OPENSLES_SINK (base); |
| GstAudioRingBuffer *rb; |
| |
| rb = gst_opensles_ringbuffer_new (RB_MODE_SINK_PCM); |
| gst_opensles_ringbuffer_set_volume (rb, sink->volume); |
| gst_opensles_ringbuffer_set_mute (rb, sink->mute); |
| return rb; |
| } |
| |
| #define AUDIO_OUTPUT_DESC_FORMAT \ |
| "deviceName: %s deviceConnection: %d deviceScope: %d deviceLocation: %d " \ |
| "isForTelephony: %d minSampleRate: %d maxSampleRate: %d " \ |
| "isFreqRangeContinuous: %d maxChannels: %d" |
| |
| #define AUDIO_OUTPUT_DESC_ARGS(aod) \ |
| (gchar*) (aod)->pDeviceName, (gint) (aod)->deviceConnection, \ |
| (gint) (aod)->deviceScope, (gint) (aod)->deviceLocation, \ |
| (gint) (aod)->isForTelephony, (gint) (aod)->minSampleRate, \ |
| (gint) (aod)->maxSampleRate, (gint) (aod)->isFreqRangeContinuous, \ |
| (gint) (aod)->maxChannels |
| |
| static gboolean |
| _opensles_query_capabilities (GstOpenSLESSink * sink) |
| { |
| gboolean res = FALSE; |
| SLresult result; |
| SLObjectItf engineObject = NULL; |
| SLAudioIODeviceCapabilitiesItf audioIODeviceCapabilities; |
| SLint32 i, j, numOutputs = MAX_NUMBER_OUTPUT_DEVICES; |
| SLuint32 outputDeviceIDs[MAX_NUMBER_OUTPUT_DEVICES]; |
| SLAudioOutputDescriptor audioOutputDescriptor; |
| |
| /* Create and realize engine */ |
| engineObject = gst_opensles_get_engine (); |
| if (!engineObject) { |
| GST_ERROR_OBJECT (sink, "Getting engine failed"); |
| goto beach; |
| } |
| |
| /* Get the engine interface, which is needed in order to create other objects */ |
| result = (*engineObject)->GetInterface (engineObject, |
| SL_IID_AUDIOIODEVICECAPABILITIES, &audioIODeviceCapabilities); |
| if (result == SL_RESULT_FEATURE_UNSUPPORTED) { |
| GST_LOG_OBJECT (sink, |
| "engine.GetInterface(IODeviceCapabilities) unsupported(0x%08x)", |
| (guint32) result); |
| goto beach; |
| } else if (result != SL_RESULT_SUCCESS) { |
| GST_ERROR_OBJECT (sink, |
| "engine.GetInterface(IODeviceCapabilities) failed(0x%08x)", |
| (guint32) result); |
| goto beach; |
| } |
| |
| /* Query the list of available audio outputs */ |
| result = (*audioIODeviceCapabilities)->GetAvailableAudioOutputs |
| (audioIODeviceCapabilities, &numOutputs, outputDeviceIDs); |
| if (result == SL_RESULT_FEATURE_UNSUPPORTED) { |
| GST_LOG_OBJECT (sink, |
| "IODeviceCapabilities.GetAvailableAudioOutputs unsupported(0x%08x)", |
| (guint32) result); |
| goto beach; |
| } else if (result != SL_RESULT_SUCCESS) { |
| GST_ERROR_OBJECT (sink, |
| "IODeviceCapabilities.GetAvailableAudioOutputs failed(0x%08x)", |
| (guint32) result); |
| goto beach; |
| } |
| |
| GST_DEBUG_OBJECT (sink, "Found %d output devices", (gint32) numOutputs); |
| |
| for (i = 0; i < numOutputs; i++) { |
| result = (*audioIODeviceCapabilities)->QueryAudioOutputCapabilities |
| (audioIODeviceCapabilities, outputDeviceIDs[i], &audioOutputDescriptor); |
| |
| if (result == SL_RESULT_FEATURE_UNSUPPORTED) { |
| GST_LOG_OBJECT (sink, |
| "IODeviceCapabilities.QueryAudioOutputCapabilities unsupported(0x%08x)", |
| (guint32) result); |
| continue; |
| } else if (result != SL_RESULT_SUCCESS) { |
| GST_ERROR_OBJECT (sink, |
| "IODeviceCapabilities.QueryAudioOutputCapabilities failed(0x%08x)", |
| (guint32) result); |
| continue; |
| } |
| |
| GST_DEBUG_OBJECT (sink, " ID: %08x " AUDIO_OUTPUT_DESC_FORMAT, |
| (guint) outputDeviceIDs[i], |
| AUDIO_OUTPUT_DESC_ARGS (&audioOutputDescriptor)); |
| GST_DEBUG_OBJECT (sink, " Found %d supported sample rated", |
| audioOutputDescriptor.numOfSamplingRatesSupported); |
| |
| for (j = 0; j < audioOutputDescriptor.numOfSamplingRatesSupported; j++) { |
| GST_DEBUG_OBJECT (sink, " %d Hz", |
| (gint) audioOutputDescriptor.samplingRatesSupported[j]); |
| } |
| } |
| |
| res = TRUE; |
| beach: |
| /* Destroy the engine object */ |
| if (engineObject) { |
| gst_opensles_release_engine (engineObject); |
| } |
| |
| return res; |
| } |
| |
| static void |
| gst_opensles_sink_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec) |
| { |
| GstOpenSLESSink *sink = GST_OPENSLES_SINK (object); |
| GstAudioRingBuffer *rb = GST_AUDIO_BASE_SINK (sink)->ringbuffer; |
| |
| switch (prop_id) { |
| case PROP_VOLUME: |
| sink->volume = g_value_get_double (value); |
| if (rb && GST_IS_OPENSLES_RING_BUFFER (rb)) { |
| gst_opensles_ringbuffer_set_volume (rb, sink->volume); |
| } |
| break; |
| case PROP_MUTE: |
| sink->mute = g_value_get_boolean (value); |
| if (rb && GST_IS_OPENSLES_RING_BUFFER (rb)) { |
| gst_opensles_ringbuffer_set_mute (rb, sink->mute); |
| } |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| static void |
| gst_opensles_sink_get_property (GObject * object, guint prop_id, |
| GValue * value, GParamSpec * pspec) |
| { |
| GstOpenSLESSink *sink = GST_OPENSLES_SINK (object); |
| switch (prop_id) { |
| case PROP_VOLUME: |
| g_value_set_double (value, sink->volume); |
| break; |
| case PROP_MUTE: |
| g_value_set_boolean (value, sink->mute); |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| } |
| |
| static void |
| gst_opensles_sink_class_init (GstOpenSLESSinkClass * klass) |
| { |
| GObjectClass *gobject_class; |
| GstElementClass *gstelement_class; |
| GstAudioBaseSinkClass *gstbaseaudiosink_class; |
| |
| gobject_class = (GObjectClass *) klass; |
| gstelement_class = (GstElementClass *) klass; |
| gstbaseaudiosink_class = (GstAudioBaseSinkClass *) klass; |
| |
| gobject_class->set_property = gst_opensles_sink_set_property; |
| gobject_class->get_property = gst_opensles_sink_get_property; |
| |
| g_object_class_install_property (gobject_class, PROP_VOLUME, |
| g_param_spec_double ("volume", "Volume", "Volume of this stream", |
| 0, 1.0, 1.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| g_object_class_install_property (gobject_class, PROP_MUTE, |
| g_param_spec_boolean ("mute", "Mute", "Mute state of this stream", |
| DEFAULT_MUTE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); |
| |
| gst_element_class_add_pad_template (gstelement_class, |
| gst_static_pad_template_get (&sink_factory)); |
| |
| gst_element_class_set_static_metadata (gstelement_class, "OpenSL ES Sink", |
| "Sink/Audio", |
| "Output sound using the OpenSL ES APIs", |
| "Josep Torra <support@fluendo.com>"); |
| |
| gstbaseaudiosink_class->create_ringbuffer = |
| GST_DEBUG_FUNCPTR (gst_opensles_sink_create_ringbuffer); |
| } |
| |
| static void |
| gst_opensles_sink_init (GstOpenSLESSink * sink) |
| { |
| sink->volume = DEFAULT_VOLUME; |
| sink->mute = DEFAULT_MUTE; |
| |
| _opensles_query_capabilities (sink); |
| |
| gst_audio_base_sink_set_provide_clock (GST_AUDIO_BASE_SINK (sink), TRUE); |
| /* Override some default values to fit on the AudioFlinger behaviour of |
| * processing 20ms buffers as minimum buffer size. */ |
| GST_AUDIO_BASE_SINK (sink)->buffer_time = 200000; |
| GST_AUDIO_BASE_SINK (sink)->latency_time = 20000; |
| } |