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