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/*
* Copyright (C) 2007-2009 Nokia Corporation.
* Copyright (C) 2008 NXP.
*
* Author: Frederik Vernelen <frederik.vernelen@nxp.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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "gstomx_volume.h"
#include "gstomx_base_filter.h"
#include "gstomx.h"
GSTOMX_BOILERPLATE (GstOmxVolume, gst_omx_volume, GstOmxBaseFilter,
GST_OMX_BASE_FILTER_TYPE);
static void
type_base_init (gpointer g_class)
{
GstElementClass *element_class;
element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_details_simple (element_class,
"OpenMAX IL Volume component",
"Filter/Effect/Audio",
"Changes the volume with OpenMAX IL", "Frederik Vernelen");
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
gstomx_template_caps (G_TYPE_FROM_CLASS (g_class), "sink")));
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
gstomx_template_caps (G_TYPE_FROM_CLASS (g_class), "src")));
}
static void
type_class_init (gpointer g_class, gpointer class_data)
{
}
static void
settings_changed_cb (GOmxCore * core)
{
GstOmxBaseFilter *omx_base;
guint rate;
guint channels;
omx_base = core->object;
GST_DEBUG_OBJECT (omx_base, "settings changed");
{
OMX_AUDIO_PARAM_PCMMODETYPE param;
G_OMX_INIT_PARAM (param);
param.nPortIndex = omx_base->out_port->port_index;
OMX_GetParameter (omx_base->gomx->omx_handle, OMX_IndexParamAudioPcm,
¶m);
rate = param.nSamplingRate;
channels = param.nChannels;
if (rate == 0) {
/** @todo: this shouldn't happen. */
GST_WARNING_OBJECT (omx_base, "Bad samplerate");
rate = 44100;
}
}
{
GstCaps *new_caps;
new_caps = gst_caps_new_simple ("audio/x-raw-int",
"width", G_TYPE_INT, 16,
"depth", G_TYPE_INT, 16,
"rate", G_TYPE_INT, rate,
"signed", G_TYPE_BOOLEAN, TRUE,
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"channels", G_TYPE_INT, channels, NULL);
GST_INFO_OBJECT (omx_base, "caps are: %" GST_PTR_FORMAT, new_caps);
gst_pad_set_caps (omx_base->srcpad, new_caps);
}
}
static void
type_instance_init (GTypeInstance * instance, gpointer g_class)
{
GstOmxBaseFilter *omx_base;
omx_base = GST_OMX_BASE_FILTER (instance);
GST_DEBUG_OBJECT (omx_base, "start");
omx_base->gomx->settings_changed_cb = settings_changed_cb;
}
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