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/*
* Copyright (C) 2007-2009 Nokia Corporation.
*
* Author: Felipe Contreras <felipe.contreras@nokia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation
* version 2.1 of the License.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "gstomx_audiosink.h"
#include "gstomx.h"
#include <string.h> /* for memset */
GSTOMX_BOILERPLATE (GstOmxAudioSink, gst_omx_audiosink, GstOmxBaseSink, GST_OMX_BASE_SINK_TYPE);
static GstCaps *
generate_sink_template (void)
{
GstCaps *caps;
caps = gst_caps_new_simple ("audio/x-raw-int",
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"width", GST_TYPE_INT_RANGE, 8, 32,
"depth", GST_TYPE_INT_RANGE, 8, 32,
"rate", GST_TYPE_INT_RANGE, 8000, 48000,
"signed", G_TYPE_BOOLEAN, TRUE,
"channels", GST_TYPE_INT_RANGE, 1, 8,
NULL);
return caps;
}
static void
type_base_init (gpointer g_class)
{
GstElementClass *element_class;
element_class = GST_ELEMENT_CLASS (g_class);
{
GstElementDetails details;
details.longname = "OpenMAX IL audiosink element";
details.klass = "Sink/Audio";
details.description = "Renders audio";
details.author = "Felipe Contreras";
gst_element_class_set_details (element_class, &details);
}
{
GstPadTemplate *template;
template = gst_pad_template_new ("sink", GST_PAD_SINK,
GST_PAD_ALWAYS,
generate_sink_template ());
gst_element_class_add_pad_template (element_class, template);
}
}
static gboolean
setcaps (GstBaseSink *gst_sink,
GstCaps *caps)
{
GstOmxBaseSink *self;
GOmxCore *gomx;
self = GST_OMX_BASE_SINK (gst_sink);
gomx = (GOmxCore *) self->gomx;
GST_INFO_OBJECT (self, "setcaps (sink): %" GST_PTR_FORMAT, caps);
g_return_val_if_fail (gst_caps_get_size (caps) == 1, FALSE);
{
GstStructure *structure;
gint channels;
gint width;
gint rate;
gboolean is_signed;
gboolean is_bigendian;
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_int (structure, "channels", &channels);
gst_structure_get_int (structure, "width", &width);
gst_structure_get_int (structure, "rate", &rate);
gst_structure_get_boolean (structure, "signed", &is_signed);
{
gint endianness;
gst_structure_get_int (structure, "endianness", &endianness);
is_bigendian = (endianness == 1234) ? FALSE : TRUE;
}
{
OMX_AUDIO_PARAM_PCMMODETYPE param;
memset (¶m, 0, sizeof (param));
param.nSize = sizeof (OMX_AUDIO_PARAM_PCMMODETYPE);
param.nVersion.s.nVersionMajor = 1;
param.nVersion.s.nVersionMinor = 1;
param.nPortIndex = self->in_port->port_index;
OMX_GetParameter (gomx->omx_handle, OMX_IndexParamAudioPcm, ¶m);
param.nChannels = channels;
param.eNumData = is_signed ? OMX_NumericalDataSigned : OMX_NumericalDataUnsigned;
param.eEndian = is_bigendian ? OMX_EndianBig : OMX_EndianLittle;
param.nBitPerSample = width;
param.nSamplingRate = rate;
OMX_SetParameter (gomx->omx_handle, OMX_IndexParamAudioPcm, ¶m);
}
}
return TRUE;
}
static void
type_class_init (gpointer g_class,
gpointer class_data)
{
GstBaseSinkClass *gst_base_sink_class;
gst_base_sink_class = GST_BASE_SINK_CLASS (g_class);
gst_base_sink_class->set_caps = setcaps;
}
static void
type_instance_init (GTypeInstance *instance,
gpointer g_class)
{
GstOmxBaseSink *omx_base;
omx_base = GST_OMX_BASE_SINK (instance);
GST_DEBUG_OBJECT (omx_base, "start");
}
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