| 1 | /* This file is part of the KDE project.
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| 2 |
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| 3 | Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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| 4 |
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| 5 | This library is free software: you can redistribute it and/or modify
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| 6 | it under the terms of the GNU Lesser General Public License as published by
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| 7 | the Free Software Foundation, either version 2.1 or 3 of the License.
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| 8 |
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| 9 | This library is distributed in the hope that it will be useful,
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 12 | GNU Lesser General Public License for more details.
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| 13 |
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| 14 | You should have received a copy of the GNU Lesser General Public License
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| 15 | along with this library. If not, see <http://www.gnu.org/licenses/>.
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| 16 | */
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| 17 |
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| 18 | #include "common.h"
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| 19 | #include "backend.h"
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| 20 | #include "medianode.h"
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| 21 | #include "effectmanager.h"
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| 22 | #include "audioeffect.h"
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| 23 | #include "gsthelper.h"
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| 24 |
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| 25 | #include <gst/gst.h>
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| 26 | #ifndef QT_NO_PHONON_EFFECT
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| 27 | QT_BEGIN_NAMESPACE
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| 28 |
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| 29 | namespace Phonon
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| 30 | {
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| 31 | namespace Gstreamer
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| 32 | {
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| 33 | AudioEffect::AudioEffect(Backend *backend, int effectId, QObject *parent)
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| 34 | : Effect(backend, parent, AudioSource | AudioSink)
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| 35 | {
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| 36 | static int count = 0;
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| 37 | m_name = "AudioEffect" + QString::number(count++);
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| 38 | QList<EffectInfo*> audioEffects = backend->effectManager()->audioEffects();
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| 39 | if (effectId >= 0 && effectId < audioEffects.size()) {
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| 40 | m_effectName = audioEffects[effectId]->name();
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| 41 | init();
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| 42 | } else {
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| 43 | Q_ASSERT(0); // Effect ID out of range
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| 44 | }
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| 45 | }
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| 46 |
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| 47 | GstElement* AudioEffect::createEffectBin()
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| 48 | {
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| 49 | GstElement *audioBin = gst_bin_new(NULL);
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| 50 |
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| 51 | // We need a queue to handle tee-connections from parent node
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| 52 | GstElement *queue= gst_element_factory_make ("queue", NULL);
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| 53 | gst_bin_add(GST_BIN(audioBin), queue);
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| 54 |
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| 55 | GstElement *mconv= gst_element_factory_make ("audioconvert", NULL);
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| 56 | gst_bin_add(GST_BIN(audioBin), mconv);
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| 57 |
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| 58 | m_effectElement = gst_element_factory_make (qPrintable(m_effectName), NULL);
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| 59 | gst_bin_add(GST_BIN(audioBin), m_effectElement);
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| 60 |
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| 61 | //Link src pad
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| 62 | GstPad *srcPad= gst_element_get_pad (m_effectElement, "src");
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| 63 | gst_element_add_pad (audioBin, gst_ghost_pad_new ("src", srcPad));
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| 64 | gst_object_unref (srcPad);
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| 65 |
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| 66 | //Link sink pad
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| 67 | gst_element_link_many(queue, mconv, m_effectElement, (const char*)NULL);
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| 68 | GstPad *sinkpad = gst_element_get_pad (queue, "sink");
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| 69 | gst_element_add_pad (audioBin, gst_ghost_pad_new ("sink", sinkpad));
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| 70 | gst_object_unref (sinkpad);
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| 71 | return audioBin;
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| 72 | }
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| 73 |
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| 74 | }
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| 75 | } //namespace Phonon::Gstreamer
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| 76 |
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| 77 | QT_END_NAMESPACE
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| 78 | #endif //QT_NO_PHONON_EFFECT
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| 79 | #include "moc_audioeffect.cpp"
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