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 void start() override;
38 void stop() override;
39
40 bool isPlaying() override { return m_isPlaying; }
41 float sampleRate() const override { return m_sampleRate; }
42 AudioIOCallback& callback() const { return m_callback; }
43
44 gboolean handleMessage(GstMessage*);
45
46private:
47 AudioIOCallback& m_callback;
48 RefPtr<AudioBus> m_renderBus;
49
50 float m_sampleRate;
51 bool m_isPlaying;
52 bool m_audioSinkAvailable;
53 GstElement* m_pipeline;
54};
55
56} // namespace WebCore
57
58#endif // AudioDestinationGStreamer_h
59