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//
// libavg - Media Playback Engine.
// Copyright (C) 2003-2014 Ulrich von Zadow
//
// 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 of the License, or (at your option) any later version.
//
// 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, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Current versions can be found at www.libavg.de
//
// Original author of this file is Nick Hebner (hebnern@gmail.com).
//
#ifndef _AudioDecoderThread_H_
#define _AudioDecoderThread_H_
#include "../avgconfigwrapper.h"
#include "VideoMsg.h"
#include "../base/WorkerThread.h"
#include "../base/Command.h"
#include "../audio/AudioParams.h"
#include "WrapFFMpeg.h"
#include <boost/thread.hpp>
#include <string>
namespace avg {
class AVG_API AudioDecoderThread : public WorkerThread<AudioDecoderThread> {
public:
AudioDecoderThread(CQueue& cmdQ, AudioMsgQueue& msgQ, VideoMsgQueue& packetQ,
AVStream* pStream, const AudioParams& ap);
virtual ~AudioDecoderThread();
bool work();
private:
void decodePacket(AVPacket* pPacket);
void handleSeekDone(AVPacket* pPacket);
void discardPacket(AVPacket* pPacket);
AudioBufferPtr resampleAudio(char* pDecodedData, int framesDecoded,
int currentSampleFormat);
void insertSilence(float duration);
void planarToInterleaved(char* pOutput, char* pInput, int numChannels,
int numSamples);
void pushAudioMsg(AudioBufferPtr pBuffer, float time);
void pushSeekDone(float time, int seqNum);
void pushEOF();
int getBytesPerSample(int sampleFormat);
AudioMsgQueue& m_MsgQ;
VideoMsgQueue& m_PacketQ;
AudioParams m_AP;
AVStream * m_pStream;
int m_InputSampleRate;
int m_InputSampleFormat;
#ifdef LIBAVRESAMPLE_VERSION
AVAudioResampleContext * m_pResampleContext;
#else
ReSampleContext * m_pResampleContext;
#endif
float m_AudioStartTimestamp;
float m_LastFrameTime;
enum State {DECODING, SEEK_DONE, DISCARDING};
State m_State;
int m_SeekSeqNum;
float m_SeekTime;
};
}
#endif
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