1/*
2 *  Copyright (C) 2011, 2012 Igalia S.L
3 *
4 *  This library is free software; you can redistribute it and/or
5 *  modify it under the terms of the GNU Lesser General Public
6 *  License as published by the Free Software Foundation; either
7 *  version 2 of the License, or (at your option) any later version.
8 *
9 *  This library is distributed in the hope that it will be useful,
10 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
11 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 *  Lesser General Public License for more details.
13 *
14 *  You should have received a copy of the GNU Lesser General Public
15 *  License along with this library; if not, write to the Free Software
16 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
17 */
18
19#ifndef AudioDestinationGStreamer_h
20#define AudioDestinationGStreamer_h
21
22#include "AudioBus.h"
23#include "AudioDestination.h"
24#include <wtf/RefPtr.h>
25
26typedef struct _GstElement GstElement;
27typedef struct _GstPad GstPad;
28typedef struct _GstMessage GstMessage;
29
30namespace WebCore {
31
32class AudioDestinationGStreamer : public AudioDestination {
33public:
34    AudioDestinationGStreamer(AudioIOCallback&, float sampleRate);
35    virtual ~AudioDestinationGStreamer();
36
37    virtual void start();
38    virtual void stop();
39
40    bool isPlaying() { return m_isPlaying; }
41    float sampleRate() const { return m_sampleRate; }
42    AudioIOCallback& callback() const { return m_callback; }
43
44    void finishBuildingPipelineAfterWavParserPadReady(GstPad*);
45    gboolean handleMessage(GstMessage*);
46
47private:
48    AudioIOCallback& m_callback;
49    RefPtr<AudioBus> m_renderBus;
50
51    float m_sampleRate;
52    bool m_isPlaying;
53    bool m_wavParserAvailable;
54    bool m_audioSinkAvailable;
55    GstElement* m_pipeline;
56};
57
58} // namespace WebCore
59
60#endif // AudioDestinationGStreamer_h
61