mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-14 05:12:09 +00:00
40ca6ed977
The OpenSL ES spec defines: An implementation shall enable creation of at least one such object, but attempting to create more instances (either by a single application or by several different applications) may fail.
101 lines
2.7 KiB
C
101 lines
2.7 KiB
C
/* 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., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <gst/gst.h>
|
|
#include <SLES/OpenSLES.h>
|
|
|
|
#include "opensles.h"
|
|
#include "openslessink.h"
|
|
#include "openslessrc.h"
|
|
|
|
static GMutex engine_mutex;
|
|
static SLObjectItf engine_object = NULL;
|
|
static gint engine_object_refcount = 0;
|
|
|
|
SLObjectItf
|
|
gst_opensles_get_engine (void)
|
|
{
|
|
g_mutex_lock (&engine_mutex);
|
|
if (!engine_object) {
|
|
SLresult result;
|
|
result = slCreateEngine (&engine_object, 0, NULL, 0, NULL, NULL);
|
|
if (result != SL_RESULT_SUCCESS) {
|
|
GST_ERROR ("slCreateEngine failed(0x%08x)", (guint32) result);
|
|
engine_object = NULL;
|
|
}
|
|
|
|
result = (*engine_object)->Realize (engine_object, SL_BOOLEAN_FALSE);
|
|
if (result != SL_RESULT_SUCCESS) {
|
|
GST_ERROR ("engine.Realize failed(0x%08x)", (guint32) result);
|
|
(*engine_object)->Destroy (engine_object);
|
|
engine_object = NULL;
|
|
}
|
|
}
|
|
|
|
if (engine_object) {
|
|
engine_object_refcount++;
|
|
}
|
|
g_mutex_unlock (&engine_mutex);
|
|
|
|
return engine_object;
|
|
}
|
|
|
|
void
|
|
gst_opensles_release_engine (SLObjectItf engine_object_parameter)
|
|
{
|
|
g_mutex_lock (&engine_mutex);
|
|
g_assert (engine_object == engine_object_parameter);
|
|
|
|
if (engine_object) {
|
|
engine_object_refcount--;
|
|
|
|
if (engine_object_refcount == 0) {
|
|
(*engine_object)->Destroy (engine_object);
|
|
engine_object = NULL;
|
|
}
|
|
}
|
|
g_mutex_unlock (&engine_mutex);
|
|
}
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
g_mutex_init (&engine_mutex);
|
|
|
|
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_DEFINE (GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
opensles,
|
|
"OpenSL ES support for GStreamer",
|
|
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
|