130 lines
4.0 KiB
C++
130 lines
4.0 KiB
C++
/******************************************************************************
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QtAV: Multimedia framework based on Qt and FFmpeg
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Copyright (C) 2012-2017 Wang Bin <wbsecg1@gmail.com>
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* This file is part of QtAV
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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******************************************************************************/
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#ifndef QAV_DEMUXTHREAD_H
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#define QAV_DEMUXTHREAD_H
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#include <QtCore/QMutex>
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#include <QtCore/QSemaphore>
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#include <QtCore/QThread>
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#include <QtCore/QRunnable>
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#include "PacketBuffer.h"
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namespace FAV {
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class AVDemuxer;
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class AVThread;
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class AVDemuxThread : public QThread
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{
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Q_OBJECT
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public:
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explicit AVDemuxThread(QObject *parent = 0);
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explicit AVDemuxThread(AVDemuxer *dmx, QObject *parent = 0);
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void setDemuxer(AVDemuxer *dmx);
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void setAudioDemuxer(AVDemuxer *demuxer); //not thread safe
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void setAudioThread(AVThread *thread);
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AVThread* audioThread();
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void setVideoThread(AVThread *thread);
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AVThread* videoThread();
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// void stepForward(); // show next video frame and pause
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// void stepBackward();
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void seek(qint64 pos, SeekType type); //ms
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//AVDemuxer* demuxer
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bool isPaused() const;
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bool isEnd() const;
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bool atEndOfMedia() const;
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PacketBuffer* buffer();
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void updateBufferState();
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void stop(); //TODO: remove it?
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void pause(bool p, bool wait = false);
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int playerID;
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#if (REAR_SYNC_FRONT)
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double rear_delay;
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#endif
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bool seek_exist()
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{
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return seek_tasks.size() > 0;
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}
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MediaEndAction mediaEndAction() const;
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void setMediaEndAction(MediaEndAction value);
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bool waitForStarted(int msec = -1);
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Q_SIGNALS:
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void requestClockPause(bool value);
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void mediaStatusChanged(FAV::MediaStatus);
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void bufferProgressChanged(qreal);
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#if (PLAY_SYNC_FIX2)
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void seekFinished(qint64 timestamp,qint64 requested);
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#else
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void seekFinished(qint64 timestamp);
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#endif
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void stepFinished();
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#if !(DO_NOT_USE_SUBTITLE)
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void internalSubtitlePacketRead(int index, const FAV::Packet& packet);
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#endif
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private slots:
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void seekOnPauseFinished();
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//void frameDeliveredOnStepForward();
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//void eofDecodedOnStepForward();
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void onAVThreadQuit();
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protected:
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virtual void run();
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/*
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* If the pause state is true setted by pause(true), then block the thread and wait for pause state changed, i.e. pause(false)
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* and return true. Otherwise, return false immediatly.
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*/
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bool tryPause(unsigned long timeout = 100);
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private:
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void setAVThread(AVThread *&pOld, AVThread* pNew);
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void newSeekRequest(QRunnable *r);
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void processNextSeekTask();
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void seekInternal(qint64 pos, SeekType type); //must call in AVDemuxThread
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void pauseInternal(bool value);
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bool paused;
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bool user_paused;
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volatile bool end;
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MediaEndAction end_action;
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bool m_buffering;
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PacketBuffer *m_buffer;
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AVDemuxer *demuxer;
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AVDemuxer *ademuxer;
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AVThread *audio_thread, *video_thread;
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int audio_stream, video_stream;
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QMutex buffer_mutex;
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QWaitCondition cond;
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BlockingQueue<QRunnable*> seek_tasks;
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QSemaphore sem;
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QMutex next_frame_mutex;
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int clock_type; // change happens in different threads(direct connection)
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friend class SeekTask;
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friend class stepBackwardTask;
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};
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} //namespace FAV
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#endif // QAV_DEMUXTHREAD_H
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