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/* This file is part of the KDE project.
Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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, either version 2.1 or 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "common.h"
#include "backend.h"
#include "medianode.h"
#include "effectmanager.h"
#include "audioeffect.h"
#include "gsthelper.h"
#include <gst/gst.h>
QT_BEGIN_NAMESPACE
namespace Phonon
{
namespace Gstreamer
{
AudioEffect::AudioEffect(Backend *backend, int effectId, QObject *parent)
: Effect(backend, parent, AudioSource | AudioSink)
{
static int count = 0;
m_name = "AudioEffect" + QString::number(count++);
QList<EffectInfo*> audioEffects = backend->effectManager()->audioEffects();
if (effectId >= 0 && effectId < audioEffects.size()) {
m_effectName = audioEffects[effectId]->name();
init();
} else {
Q_ASSERT(0); // Effect ID out of range
}
}
GstElement* AudioEffect::createEffectBin()
{
GstElement *audioBin = gst_bin_new(NULL);
// We need a queue to handle tee-connections from parent node
GstElement *queue= gst_element_factory_make ("queue", NULL);
gst_bin_add(GST_BIN(audioBin), queue);
GstElement *mconv= gst_element_factory_make ("audioconvert", NULL);
gst_bin_add(GST_BIN(audioBin), mconv);
m_effectElement = gst_element_factory_make (qPrintable(m_effectName), NULL);
gst_bin_add(GST_BIN(audioBin), m_effectElement);
//Link src pad
GstPad *srcPad= gst_element_get_pad (m_effectElement, "src");
gst_element_add_pad (audioBin, gst_ghost_pad_new ("src", srcPad));
gst_object_unref (srcPad);
//Link sink pad
gst_element_link_many(queue, mconv, m_effectElement, (const char*)NULL);
GstPad *sinkpad = gst_element_get_pad (queue, "sink");
gst_element_add_pad (audioBin, gst_ghost_pad_new ("sink", sinkpad));
gst_object_unref (sinkpad);
return audioBin;
}
}
} //namespace Phonon::Gstreamer
QT_END_NAMESPACE
#include "moc_audioeffect.cpp"
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