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opensles: Add initial draft implementation of OpenSL ES plugin.

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Initial draft implementation for a OpenSL ES based plugin for Android
that provides audio src and sink.
This commit is contained in:
Josep Torra 2012-09-19 18:11:54 +02:00 committed by Sebastian Dröge
parent 77364e2b3c
commit f6aa2f29bc
8 changed files with 1435 additions and 0 deletions
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26
sys/opensles/Makefile.am Normal file
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plugin_LTLIBRARIES = libgstopensles.la
libgstopensles_la_SOURCES = openslesringbuffer.c \
openslessink.c \
openslessrc.c \
opensles.c
libgstopensles_la_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_CFLAGS) \
-Wno-deprecated-declarations
libgstopensles_la_LIBADD = \
-lgstinterfaces-@GST_MAJORMINOR@ \
-lgstaudio-@GST_MAJORMINOR@ \
$(GST_PLUGINS_BASE_LIBS) \
$(GST_BASE_LIBS) \
$(GST_LIBS)
libgstopensles_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) -lOpenSLES
if !GST_PLUGIN_BUILD_STATIC
libgstopensles_la_LIBTOOLFLAGS = --tag=disable-static --tag=CC
endif
noinst_HEADERS = openslesringbuffer.h \
openslessink.h \
openslessrc.h

74
sys/opensles/opensles.c Normal file
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/*
* GStreamer
* 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., 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 the Inevitable, the creators of the Songbird Music player
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "openslessink.h"
#include "openslessrc.h"
static gboolean
plugin_init (GstPlugin * plugin)
{
if (!gst_element_register (plugin, "openslessink", GST_RANK_PRIMARY,
GST_TYPE_OPENSLES_SINK)) {
return FALSE;
}
if (!gst_element_register (plugin, "openslessrc", GST_RANK_PRIMARY,
GST_TYPE_OPENSLES_SRC)) {
return FALSE;
}
return TRUE;
}
GST_PLUGIN_DEFINE2 (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
opensles,
"OpenSL ES support for GStreamer",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)

736
sys/opensles/openslesringbuffer.c Normal file
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/*
* GStreamer
* 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., 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 the Inevitable, the creators of the Songbird Music player
*
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "openslesringbuffer.h"
GST_DEBUG_CATEGORY_STATIC (opensles_ringbuffer_debug);
#define GST_CAT_DEFAULT opensles_ringbuffer_debug
static GstRingBufferClass *ring_parent_class = NULL;
static void
_do_init (GType type)
{
GST_DEBUG_CATEGORY_INIT (opensles_ringbuffer_debug,
"opensles_ringbuffer", 0, "OpenSL ES ringbuffer");
}
GST_BOILERPLATE_FULL (GstOpenSLESRingBuffer, gst_opensles_ringbuffer,
GstRingBuffer, GST_TYPE_RING_BUFFER, _do_init);
/* Some generic helper functions */
static inline SLuint32
_opensles_sample_rate (guint rate)
{
switch (rate) {
case 8000:
return SL_SAMPLINGRATE_8;
case 11025:
return SL_SAMPLINGRATE_11_025;
case 12000:
return SL_SAMPLINGRATE_12;
case 16000:
return SL_SAMPLINGRATE_16;
case 22050:
return SL_SAMPLINGRATE_22_05;
case 24000:
return SL_SAMPLINGRATE_24;
case 32000:
return SL_SAMPLINGRATE_32;
case 44100:
return SL_SAMPLINGRATE_44_1;
case 48000:
return SL_SAMPLINGRATE_48;
case 64000:
return SL_SAMPLINGRATE_64;
case 88200:
return SL_SAMPLINGRATE_88_2;
case 96000:
return SL_SAMPLINGRATE_96;
case 192000:
return SL_SAMPLINGRATE_192;
default:
return 0;
}
}
static inline SLuint32
_opensles_channel_mask (GstRingBufferSpec * spec)
{
/* FIXME: handle more than two channels */
switch (spec->channels) {
case 1:
return (SL_SPEAKER_FRONT_CENTER);
case 2:
return (SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT);
default:
return 0;
}
}
static inline void
_opensles_format (GstRingBufferSpec * spec, SLDataFormat_PCM * format)
{
format->formatType = SL_DATAFORMAT_PCM;
format->numChannels = spec->channels;
format->samplesPerSec = _opensles_sample_rate (spec->rate);
format->bitsPerSample = spec->depth;
format->containerSize = spec->width;
format->channelMask = _opensles_channel_mask (spec);
format->endianness =
(spec->bigend ? SL_BYTEORDER_BIGENDIAN : SL_BYTEORDER_LITTLEENDIAN);
}
/* Recorder related functions */
static void
_opensles_recorder_cb (SLAndroidSimpleBufferQueueItf bufferQueue, void *context)
{
#if 0
GstRingBuffer *rb = GST_RING_BUFFER_CAST (context);
GstOpenSLESRingBuffer *thiz = GST_OPENSLES_RING_BUFFER_CAST (rb);
assert (bq == bqRecorderBufferQueue);
assert (NULL == context);
// for streaming recording, here we would call Enqueue to give recorder the next buffer to fill
// but instead, this is a one-time buffer so we stop recording
SLresult result;
result =
(*recorderRecord)->SetRecordState (recorderRecord,
SL_RECORDSTATE_STOPPED);
if (SL_RESULT_SUCCESS == result) {
recorderSize = RECORDER_FRAMES * sizeof (short);
recorderSR = SL_SAMPLINGRATE_16;
}
#endif
}
static gboolean
_opensles_recorder_acquire (GstRingBuffer * rb, guint nbuffers,
SLDataFormat_PCM * format)
{
GstOpenSLESRingBuffer *thiz = GST_OPENSLES_RING_BUFFER_CAST (rb);
SLresult result;
/* Configure audio source */
SLDataLocator_IODevice loc_dev =
{ SL_DATALOCATOR_IODEVICE, SL_IODEVICE_AUDIOINPUT,
SL_DEFAULTDEVICEID_AUDIOINPUT, NULL
};
SLDataSource audioSrc = { &loc_dev, NULL };
/* Configure audio sink */
SLDataLocator_AndroidSimpleBufferQueue loc_bq =
{ SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE, nbuffers };
SLDataSink audioSink = { &loc_bq, format };
/* Create audio recorder (requires the RECORD_AUDIO permission) */
const SLInterfaceID id[1] = { SL_IID_ANDROIDSIMPLEBUFFERQUEUE };
const SLboolean req[1] = { SL_BOOLEAN_TRUE };
result = (*thiz->engineEngine)->CreateAudioRecorder (thiz->engineEngine,
&thiz->recorderObject, &audioSrc, &audioSink, 1, id, req);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "engine.CreateAudioRecorder failed(0x%08x)",
(guint32) result);
goto failed;
}
/* Realize the audio recorder */
result =
(*thiz->recorderObject)->Realize (thiz->recorderObject, SL_BOOLEAN_FALSE);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "recorder.Realize failed(0x%08x)",
(guint32) result);
goto failed;
}
/* Get the record interface */
result = (*thiz->recorderObject)->GetInterface (thiz->recorderObject,
SL_IID_RECORD, &thiz->recorderRecord);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "recorder.GetInterface(Record) failed(0x%08x)",
(guint32) result);
goto failed;
}
/* Get the buffer queue interface */
result =
(*thiz->recorderObject)->GetInterface (thiz->recorderObject,
SL_IID_ANDROIDSIMPLEBUFFERQUEUE, &thiz->bufferQueue);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "recorder.GetInterface(BufferQueue) failed(0x%08x)",
(guint32) result);
goto failed;
}
/* Register callback on the buffer queue */
result = (*thiz->bufferQueue)->RegisterCallback (thiz->bufferQueue,
_opensles_recorder_cb, rb);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "bufferQueue.RegisterCallback failed(0x%08x)",
(guint32) result);
goto failed;
}
return TRUE;
failed:
return FALSE;
}
static gboolean
_opensles_recorder_start (GstRingBuffer * rb)
{
GstOpenSLESRingBuffer *thiz = GST_OPENSLES_RING_BUFFER_CAST (rb);
SLresult result;
/* in case already recording, stop recording and clear buffer queue */
result =
(*thiz->recorderRecord)->SetRecordState (thiz->recorderRecord,
SL_RECORDSTATE_STOPPED);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "recorder.SetRecordState failed(0x%08x)",
(guint32) result);
return FALSE;
}
result = (*thiz->bufferQueue)->Clear (thiz->bufferQueue);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "bq.Clear failed(0x%08x)", (guint32) result);
return FALSE;
}
/* FIXME: Maybe we should enqueue some buffers here first by calling
* _opensles_recorder_cb */
/* start recording */
result =
(*thiz->recorderRecord)->SetRecordState (thiz->recorderRecord,
SL_RECORDSTATE_RECORDING);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "recorder.SetRecordState failed(0x%08x)",
(guint32) result);
return FALSE;
}
return TRUE;
}
static gboolean
_opensles_recorder_stop (GstRingBuffer * rb)
{
GstOpenSLESRingBuffer *thiz = GST_OPENSLES_RING_BUFFER_CAST (rb);
SLresult result;
result =
(*thiz->recorderRecord)->SetRecordState (thiz->recorderRecord,
SL_RECORDSTATE_STOPPED);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "recorder.SetRecordState failed(0x%08x)",
(guint32) result);
return FALSE;
}
return TRUE;
}
/* Player related functions */
static void
_opensles_player_cb (SLAndroidSimpleBufferQueueItf bufferQueue, void *context)
{
GstRingBuffer *rb = GST_RING_BUFFER_CAST (context);
GstOpenSLESRingBuffer *thiz = GST_OPENSLES_RING_BUFFER_CAST (rb);
SLresult result;
guint8 *readptr;
gint readseg;
gint len;
if (!gst_ring_buffer_prepare_read (rb, &readseg, &readptr, &len)) {
GST_WARNING_OBJECT (rb, "The sink is starving");
return;
}
/* Enqueue a buffer */
GST_LOG_OBJECT (thiz, "enqueue: %p size %d", readptr, len);
result = (*thiz->bufferQueue)->Enqueue (thiz->bufferQueue, readptr, len);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "bufferQueue.Enqueue failed(0x%08x)",
(guint32) result);
return;
}
if (thiz->last_readseg != readseg) {
if (thiz->last_readseg >= 0) {
/* Clear written samples */
gst_ring_buffer_clear (rb, readseg);
/* We wrote one segment */
gst_ring_buffer_advance (rb, 1);
}
thiz->last_readseg = readseg;
}
}
static gboolean
_opensles_player_acquire (GstRingBuffer * rb, guint nbuffers,
SLDataFormat_PCM * format)
{
GstOpenSLESRingBuffer *thiz = GST_OPENSLES_RING_BUFFER_CAST (rb);
SLresult result;
/* Configure audio source */
SLDataLocator_AndroidSimpleBufferQueue loc_bufq =
{ SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE, nbuffers };
SLDataSource audioSrc = { &loc_bufq, format };
/* Configure audio sink */
SLDataLocator_OutputMix loc_outmix =
{ SL_DATALOCATOR_OUTPUTMIX, thiz->outputMixObject };
SLDataSink audioSink = { &loc_outmix, NULL };
/* Create an audio player */
const SLInterfaceID ids[2] = { SL_IID_BUFFERQUEUE, SL_IID_VOLUME };
const SLboolean req[2] = { SL_BOOLEAN_TRUE, SL_BOOLEAN_TRUE };
result = (*thiz->engineEngine)->CreateAudioPlayer (thiz->engineEngine,
&thiz->playerObject, &audioSrc, &audioSink, 2, ids, req);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "engine.CreateAudioPlayer failed(0x%08x)",
(guint32) result);
goto failed;
}
/* Realize the player */
result =
(*thiz->playerObject)->Realize (thiz->playerObject, SL_BOOLEAN_FALSE);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "player.Realize failed(0x%08x)", (guint32) result);
goto failed;
}
/* Get the play interface */
result = (*thiz->playerObject)->GetInterface (thiz->playerObject,
SL_IID_PLAY, &thiz->playerPlay);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "player.GetInterface(Play) failed(0x%08x)",
(guint32) result);
goto failed;
}
/* Get the buffer queue interface */
result = (*thiz->playerObject)->GetInterface (thiz->playerObject,
SL_IID_BUFFERQUEUE, &thiz->bufferQueue);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "player.GetInterface(BufferQueue) failed(0x%08x)",
(guint32) result);
goto failed;
}
/* Register callback on the buffer queue */
result = (*thiz->bufferQueue)->RegisterCallback (thiz->bufferQueue,
_opensles_player_cb, rb);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "bufferQueue.RegisterCallback failed(0x%08x)",
(guint32) result);
goto failed;
}
/* Get the volume interface */
result = (*thiz->playerObject)->GetInterface (thiz->playerObject,
SL_IID_VOLUME, &thiz->playerVolume);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "player.GetInterface(Volume) failed(0x%08x)",
(guint32) result);
goto failed;
}
return TRUE;
failed:
return FALSE;
}
static gboolean
_opensles_player_start (GstRingBuffer * rb)
{
GstOpenSLESRingBuffer *thiz = GST_OPENSLES_RING_BUFFER_CAST (rb);
SLresult result;
result =
(*thiz->playerPlay)->SetPlayState (thiz->playerPlay,
SL_PLAYSTATE_PLAYING);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "player.SetPlayState failed(0x%08x)",
(guint32) result);
return FALSE;
}
/* Enqueue some initial data */
_opensles_player_cb (NULL, rb);
return TRUE;
}
static gboolean
_opensles_player_pause (GstRingBuffer * rb)
{
GstOpenSLESRingBuffer *thiz = GST_OPENSLES_RING_BUFFER_CAST (rb);
SLresult result;
result =
(*thiz->playerPlay)->SetPlayState (thiz->playerPlay, SL_PLAYSTATE_PAUSED);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "player.SetPlayState failed(0x%08x)",
(guint32) result);
return FALSE;
}
return TRUE;
}
static gboolean
_opensles_player_stop (GstRingBuffer * rb)
{
GstOpenSLESRingBuffer *thiz = GST_OPENSLES_RING_BUFFER_CAST (rb);
SLresult result;
result =
(*thiz->playerPlay)->SetPlayState (thiz->playerPlay,
SL_PLAYSTATE_STOPPED);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "player.SetPlayState failed(0x%08x)",
(guint32) result);
return FALSE;
}
return TRUE;
}
/* OpenSL ES ring buffer wrapper */
GstRingBuffer *
gst_opensles_ringbuffer_new (RingBufferMode mode)
{
GstOpenSLESRingBuffer *thiz;
g_return_val_if_fail (mode > RB_MODE_NONE && mode < RB_MODE_LAST, NULL);
thiz = g_object_new (GST_TYPE_OPENSLES_RING_BUFFER, NULL);
if (thiz) {
thiz->mode = mode;
if (mode == RB_MODE_SRC) {
thiz->acquire = _opensles_recorder_acquire;
thiz->start = _opensles_recorder_start;
thiz->pause = _opensles_recorder_stop;
thiz->stop = _opensles_recorder_stop;
} else if (mode == RB_MODE_SINK_PCM) {
thiz->acquire = _opensles_player_acquire;
thiz->start = _opensles_player_start;
thiz->pause = _opensles_player_pause;
thiz->stop = _opensles_player_stop;
}
}
GST_DEBUG_OBJECT (thiz, "ringbuffer created");
return GST_RING_BUFFER (thiz);
}
static gboolean
gst_opensles_ringbuffer_open_device (GstRingBuffer * rb)
{
GstOpenSLESRingBuffer *thiz;
SLresult result;
thiz = GST_OPENSLES_RING_BUFFER_CAST (rb);
/* Create engine */
result = slCreateEngine (&thiz->engineObject, 0, NULL, 0, NULL, NULL);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "slCreateEngine failed(0x%08x)", (guint32) result);
goto failed;
}
/* Realize the engine */
result = (*thiz->engineObject)->Realize (thiz->engineObject,
SL_BOOLEAN_FALSE);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "engine.Realize failed(0x%08x)", (guint32) result);
goto failed;
}
/* Get the engine interface, which is needed in order to
* create other objects */
result = (*thiz->engineObject)->GetInterface (thiz->engineObject,
SL_IID_ENGINE, &thiz->engineEngine);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "engine.GetInterface(Engine) failed(0x%08x)",
(guint32) result);
goto failed;
}
if (thiz->mode == RB_MODE_SINK_PCM) {
/* Create an output mixer */
result = (*thiz->engineEngine)->CreateOutputMix (thiz->engineEngine,
&thiz->outputMixObject, 0, NULL, NULL);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "engine.CreateOutputMix failed(0x%08x)",
(guint32) result);
goto failed;
}
/* Realize the output mixer */
result = (*thiz->outputMixObject)->Realize (thiz->outputMixObject,
SL_BOOLEAN_FALSE);
if (result != SL_RESULT_SUCCESS) {
GST_ERROR_OBJECT (thiz, "outputMix.Realize failed(0x%08x)",
(guint32) result);
goto failed;
}
}
GST_DEBUG_OBJECT (thiz, "device opened");
return TRUE;
failed:
return FALSE;
}
static gboolean
gst_opensles_ringbuffer_close_device (GstRingBuffer * rb)
{
GstOpenSLESRingBuffer *thiz;
thiz = GST_OPENSLES_RING_BUFFER_CAST (rb);
/* Destroy output mix object */
if (thiz->outputMixObject) {
(*thiz->outputMixObject)->Destroy (thiz->outputMixObject);
thiz->outputMixObject = NULL;
}
/* Destroy engine object, and invalidate all associated interfaces */
if (thiz->engineObject) {
(*thiz->engineObject)->Destroy (thiz->engineObject);
thiz->engineObject = NULL;
thiz->engineEngine = NULL;
}
thiz->bufferQueue = NULL;
GST_DEBUG_OBJECT (thiz, "device closed");
return TRUE;
}
static gboolean
gst_opensles_ringbuffer_acquire (GstRingBuffer * rb, GstRingBufferSpec * spec)
{
GstOpenSLESRingBuffer *thiz;
SLDataFormat_PCM format;
thiz = GST_OPENSLES_RING_BUFFER_CAST (rb);
/* Define ringbuffer in terms of number of buffers and buffer size */
spec->segsize =
(spec->latency_time * spec->rate / G_USEC_PER_SEC) *
spec->bytes_per_sample;
spec->segtotal = MAX (2, spec->buffer_time / spec->latency_time);
thiz->last_readseg = -1;
/* Define the format in OpenSL ES terms */
_opensles_format (spec, &format);
/* Instantiate and configure the OpenSL ES devices */
if (!thiz->acquire (rb, spec->segtotal, &format)) {
return FALSE;
}
/* Initialize our ringbuffer memory region */
rb->data = gst_buffer_new_and_alloc (spec->segtotal * spec->segsize);
memset (GST_BUFFER_DATA (rb->data), 0, GST_BUFFER_SIZE (rb->data));
GST_DEBUG_OBJECT (thiz, "ringbuffer acquired");
return TRUE;
}
static gboolean
gst_opensles_ringbuffer_release (GstRingBuffer * rb)
{
GstOpenSLESRingBuffer *thiz;
thiz = GST_OPENSLES_RING_BUFFER (rb);
/* Destroy audio player object, and invalidate all associated interfaces */
if (thiz->playerObject) {
(*thiz->playerObject)->Destroy (thiz->playerObject);
thiz->playerObject = NULL;
thiz->playerPlay = NULL;
thiz->playerVolume = NULL;
}
/* Destroy audio recorder object, and invalidate all associated interfaces */
if (thiz->recorderObject) {
(*thiz->recorderObject)->Destroy (thiz->recorderObject);
thiz->recorderObject = NULL;
thiz->recorderRecord = NULL;
}
if (rb->data) {
gst_buffer_unref (rb->data);
rb->data = NULL;
}
GST_DEBUG_OBJECT (thiz, "ringbuffer released");
return TRUE;
}
static gboolean
gst_opensles_ringbuffer_start (GstRingBuffer * rb)
{
GstOpenSLESRingBuffer *thiz;
gboolean res;
thiz = GST_OPENSLES_RING_BUFFER_CAST (rb);
res = thiz->start (rb);
GST_DEBUG_OBJECT (thiz, "ringbuffer %s started", (res ? "" : "not"));
return res;
}
static gboolean
gst_opensles_ringbuffer_pause (GstRingBuffer * rb)
{
GstOpenSLESRingBuffer *thiz;
gboolean res;
thiz = GST_OPENSLES_RING_BUFFER_CAST (rb);
res = thiz->pause (rb);
GST_DEBUG_OBJECT (thiz, "ringbuffer %s paused", (res ? "" : "not"));
return res;
}
static gboolean
gst_opensles_ringbuffer_stop (GstRingBuffer * rb)
{
GstOpenSLESRingBuffer *thiz;
gboolean res;
thiz = GST_OPENSLES_RING_BUFFER_CAST (rb);
res = thiz->stop (rb);
GST_DEBUG_OBJECT (thiz, "ringbuffer %s stopped", (res ? " " : "not"));
return res;
}
static guint
gst_opensles_ringbuffer_delay (GstRingBuffer * rb)
{
return 0;
}
static void
gst_opensles_ringbuffer_dispose (GObject * object)
{
G_OBJECT_CLASS (ring_parent_class)->dispose (object);
}
static void
gst_opensles_ringbuffer_finalize (GObject * object)
{
G_OBJECT_CLASS (ring_parent_class)->finalize (object);
}
static void
gst_opensles_ringbuffer_base_init (gpointer g_class)
{
/* Nothing to do right now */
}
static void
gst_opensles_ringbuffer_class_init (GstOpenSLESRingBufferClass * klass)
{
GObjectClass *gobject_class;
GstRingBufferClass *gstringbuffer_class;
gobject_class = (GObjectClass *) klass;
gstringbuffer_class = (GstRingBufferClass *) klass;
ring_parent_class = g_type_class_peek_parent (klass);
gobject_class->dispose = gst_opensles_ringbuffer_dispose;
gobject_class->finalize = gst_opensles_ringbuffer_finalize;
gstringbuffer_class->open_device =
GST_DEBUG_FUNCPTR (gst_opensles_ringbuffer_open_device);
gstringbuffer_class->close_device =
GST_DEBUG_FUNCPTR (gst_opensles_ringbuffer_close_device);
gstringbuffer_class->acquire =
GST_DEBUG_FUNCPTR (gst_opensles_ringbuffer_acquire);
gstringbuffer_class->release =
GST_DEBUG_FUNCPTR (gst_opensles_ringbuffer_release);
gstringbuffer_class->start =
GST_DEBUG_FUNCPTR (gst_opensles_ringbuffer_start);
gstringbuffer_class->pause =
GST_DEBUG_FUNCPTR (gst_opensles_ringbuffer_pause);
gstringbuffer_class->resume =
GST_DEBUG_FUNCPTR (gst_opensles_ringbuffer_start);
gstringbuffer_class->stop = GST_DEBUG_FUNCPTR (gst_opensles_ringbuffer_stop);
gstringbuffer_class->delay =
GST_DEBUG_FUNCPTR (gst_opensles_ringbuffer_delay);
}
static void
gst_opensles_ringbuffer_init (GstOpenSLESRingBuffer * thiz,
GstOpenSLESRingBufferClass * g_class)
{
thiz->mode = RB_MODE_NONE;
thiz->engineObject = NULL;
thiz->outputMixObject = NULL;
thiz->playerObject = NULL;
thiz->recorderObject = NULL;
}

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/*
* GStreamer
* 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., 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 the Inevitable, the creators of the Songbird Music player
*
*/
#ifndef __OPENSLESRINGBUFFER_H__
#define __OPENSLESRINGBUFFER_H__
#include <gst/gst.h>
#include <gst/audio/gstringbuffer.h>
#include <SLES/OpenSLES.h>
#include <SLES/OpenSLES_Android.h>
G_BEGIN_DECLS
#define GST_TYPE_OPENSLES_RING_BUFFER \
(gst_opensles_ringbuffer_get_type())
#define GST_OPENSLES_RING_BUFFER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OPENSLES_RING_BUFFER,GstOpenSLESRingBuffer))
#define GST_OPENSLES_RING_BUFFER_CAST(obj) \
((GstOpenSLESRingBuffer*) obj)
#define GST_OPENSLES_RING_BUFFER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OPENSLES_RING_BUFFER,GstOpenSLESRingBufferClass))
#define GST_OPENSLES_RING_BUFFER_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_OPENSLES_RING_BUFFER,GstOpenSLESRingBufferClass))
#define GST_IS_OPENSLES_RING_BUFFER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OPENSLES_RING_BUFFER))
#define GST_IS_OPENSLES_RING_BUFFER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OPENSLES_RING_BUFFER))
typedef enum
{
RB_MODE_NONE = 0,
RB_MODE_SRC,
RB_MODE_SINK_PCM,
RB_MODE_SINK_COMPRESSED,
RB_MODE_LAST
} RingBufferMode;
typedef gboolean (*AcquireFunc) (GstRingBuffer * rb, guint nbuffers,
SLDataFormat_PCM * format);
typedef gboolean (*StateFunc) (GstRingBuffer * rb);
typedef struct _GstOpenSLESRingBuffer GstOpenSLESRingBuffer;
typedef struct _GstOpenSLESRingBufferClass GstOpenSLESRingBufferClass;
struct _GstOpenSLESRingBuffer
{
GstRingBuffer object;
RingBufferMode mode;
/* engine interfaces */
SLObjectItf engineObject;
SLEngineItf engineEngine;
/* outputMixObject */
SLObjectItf outputMixObject;
/* player interfaces */
SLObjectItf playerObject;
SLPlayItf playerPlay;
SLVolumeItf playerVolume;
/* recorder interfaces */
SLObjectItf recorderObject;
SLRecordItf recorderRecord;
/* buffer queue */
SLAndroidSimpleBufferQueueItf bufferQueue;
gint last_readseg;
/* vmethods */
AcquireFunc acquire;
StateFunc start;
StateFunc pause;
StateFunc stop;
};
struct _GstOpenSLESRingBufferClass
{
GstRingBufferClass parent_class;
};
GType gst_opensles_ringbuffer_get_type (void);
GstRingBuffer *gst_opensles_ringbuffer_new (RingBufferMode mode);
G_END_DECLS
#endif /* __OPENSLESRINGBUFFER_H__ */

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/*
* GStreamer
* 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., 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 the Inevitable, the creators of the Songbird Music player
*
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "openslessink.h"
GST_DEBUG_CATEGORY_STATIC (opensles_sink_debug);
#define GST_CAT_DEFAULT opensles_sink_debug
enum
{
PROP_0,
PROP_VOLUME,
PROP_LAST
};
#define DEFAULT_VOLUME 1.0
#define RATES "8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000, 192000"
static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"endianness = (int) {" G_STRINGIFY (G_BYTE_ORDER) " }, "
"signed = (boolean) { TRUE }, "
"width = (int) 16, "
"depth = (int) 16, "
"rate = (int) { " RATES "}, "
"channels = (int) [1, 2];"
"audio/x-raw-int, "
"endianness = (int) {" G_STRINGIFY (G_BYTE_ORDER) " }, "
"signed = (boolean) { TRUE }, "
"width = (int) 8, "
"depth = (int) 8, "
"rate = (int) { " RATES "}, " "channels = (int) [1, 2]")
);
static void
_do_init (GType type)
{
GST_DEBUG_CATEGORY_INIT (opensles_sink_debug, "opensles_sink", 0,
"OpenSL ES Sink");
}
GST_BOILERPLATE_FULL (GstOpenSLESSink, gst_opensles_sink, GstBaseAudioSink,
GST_TYPE_BASE_AUDIO_SINK, _do_init);
static void
gst_opensles_sink_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_static_pad_template (element_class, &sink_factory);
gst_element_class_set_details_simple (element_class, "OpenSL ES Sink",
"Sink/Audio",
"Output sound using the OpenSL ES APIs",
"Josep Torra <support@fluendo.com>");
}
static GstRingBuffer *
gst_opensles_sink_create_ringbuffer (GstBaseAudioSink * base)
{
GstRingBuffer *rb;
rb = gst_opensles_ringbuffer_new (RB_MODE_SINK_PCM);
return rb;
}
static void
gst_opensles_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstOpenSLESSink *sink = GST_OPENSLES_SINK (object);
switch (prop_id) {
case PROP_VOLUME:
sink->volume = g_value_get_double (value);
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;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_opensles_sink_class_init (GstOpenSLESSinkClass * klass)
{
GObjectClass *gobject_class;
GstBaseAudioSinkClass *gstbaseaudiosink_class;
gobject_class = (GObjectClass *) klass;
gstbaseaudiosink_class = (GstBaseAudioSinkClass *) klass;
parent_class = g_type_class_peek_parent (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));
gstbaseaudiosink_class->create_ringbuffer =
GST_DEBUG_FUNCPTR (gst_opensles_sink_create_ringbuffer);
}
static void
gst_opensles_sink_init (GstOpenSLESSink * sink, GstOpenSLESSinkClass * gclass)
{
sink->volume = DEFAULT_VOLUME;
}

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/*
* GStreamer
* 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., 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 the Inevitable, the creators of the Songbird Music player
*
*/
#ifndef __OPENSLESSINK_H__
#define __OPENSLESSINK_H__
#include <gst/gst.h>
#include <gst/audio/gstbaseaudiosink.h>
#include "openslesringbuffer.h"
G_BEGIN_DECLS
#define GST_TYPE_OPENSLES_SINK \
(gst_opensles_sink_get_type())
#define GST_OPENSLES_SINK(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OPENSLES_SINK,GstOpenSLESSink))
#define GST_OPENSLES_SINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OPENSLES_SINK,GstOpenSLESSinkClass))
typedef struct _GstOpenSLESSink GstOpenSLESSink;
typedef struct _GstOpenSLESSinkClass GstOpenSLESSinkClass;
struct _GstOpenSLESSink
{
GstBaseAudioSink sink;
double volume;
};
struct _GstOpenSLESSinkClass
{
GstBaseAudioSinkClass parent_class;
};
GType gst_opensles_sink_get_type (void);
G_END_DECLS
#endif /* __OPENSLESSINK_H__ */

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/*
* GStreamer
* 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., 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 the Inevitable, the creators of the Songbird Music player
*
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "openslessrc.h"
GST_DEBUG_CATEGORY_STATIC (opensles_src_debug);
#define GST_CAT_DEFAULT opensles_src_debug
#define DEFAULT_VOLUME 1.0
#define RATES "8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000, 64000, 88200, 96000, 192000"
static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-int, "
"endianness = (int) {" G_STRINGIFY (G_BYTE_ORDER) " }, "
"signed = (boolean) { TRUE }, "
"width = (int) 16, "
"depth = (int) 16, "
"rate = (int) { " RATES "}, "
"channels = (int) [1, 2];"
"audio/x-raw-int, "
"endianness = (int) {" G_STRINGIFY (G_BYTE_ORDER) " }, "
"signed = (boolean) { TRUE }, "
"width = (int) 8, "
"depth = (int) 8, "
"rate = (int) { " RATES "}, " "channels = (int) [1, 2]")
);
static void
_do_init (GType type)
{
GST_DEBUG_CATEGORY_INIT (opensles_src_debug, "opensles_src", 0,
"OpenSL ES Src");
}
GST_BOILERPLATE_FULL (GstOpenSLESSrc, gst_opensles_src, GstBaseAudioSrc,
GST_TYPE_BASE_AUDIO_SRC, _do_init);
static void
gst_opensles_src_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_static_pad_template (element_class, &src_factory);
gst_element_class_set_details_simple (element_class, "OpenSL ES Src",
"Src/Audio",
"Input sound using the OpenSL ES APIs",
"Josep Torra <support@fluendo.com>");
}
static GstRingBuffer *
gst_opensles_src_create_ringbuffer (GstBaseAudioSrc * base)
{
GstRingBuffer *rb;
rb = gst_opensles_ringbuffer_new (RB_MODE_SRC);
return rb;
}
static void
gst_opensles_src_class_init (GstOpenSLESSrcClass * klass)
{
GstBaseAudioSrcClass *gstbaseaudiosrc_class;
gstbaseaudiosrc_class = (GstBaseAudioSrcClass *) klass;
parent_class = g_type_class_peek_parent (klass);
gstbaseaudiosrc_class->create_ringbuffer =
GST_DEBUG_FUNCPTR (gst_opensles_src_create_ringbuffer);
}
static void
gst_opensles_src_init (GstOpenSLESSrc * src, GstOpenSLESSrcClass * gclass)
{
}

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/*
* GStreamer
* 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., 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 the Inevitable, the creators of the Songbird Music player
*
*/
#ifndef __OPENSLESSRC_H__
#define __OPENSLESSRC_H__
#include <gst/gst.h>
#include <gst/audio/gstbaseaudiosrc.h>
#include "openslesringbuffer.h"
G_BEGIN_DECLS
#define GST_TYPE_OPENSLES_SRC \
(gst_opensles_src_get_type())
#define GST_OPENSLES_SRC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OPENSLES_SRC,GstOpenSLESSrc))
#define GST_OPENSLES_SRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OPENSLES_SRC,GstOpenSLESSrcClass))
typedef struct _GstOpenSLESSrc GstOpenSLESSrc;
typedef struct _GstOpenSLESSrcClass GstOpenSLESSrcClass;
struct _GstOpenSLESSrc
{
GstBaseAudioSrc src;
};
struct _GstOpenSLESSrcClass
{
GstBaseAudioSrcClass parent_class;
};
GType gst_opensles_src_get_type (void);
G_END_DECLS
#endif /* __OPENSLESSRC_H__ */