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2026-02-21 17:11:31 +09:00
commit 18b4338361
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--- a/project/fm_viewer/fav/OutputSet.h
+++ b/project/fm_viewer/fav/OutputSet.h
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+/******************************************************************************
+    QtAV:  Multimedia framework based on Qt and FFmpeg
+    Copyright (C) 2012-2016 Wang Bin <wbsecg1@gmail.com>
+
+*   This file is part of QtAV (from 2013)
+
+    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 2.1 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+******************************************************************************/
+
+#ifndef QTAV_OUTPUTSET_H
+#define QTAV_OUTPUTSET_H
+
+#include <QtCore/QObject>
+#include <QtCore/QMutex>
+#include <QtCore/QWaitCondition>
+#include "_fav_constants.h"
+#include "AVOutput.h"
+
+namespace FAV {
+
+class AVPlayer;
+class VideoFrame;
+class OutputSet : public QObject
+{
+    Q_OBJECT
+public:
+    OutputSet(AVPlayer *player);
+    virtual ~OutputSet();
+
+    //required when accessing renderers
+    void lock();
+    void unlock();
+
+    //implicity shared
+    //QList<AVOutput*> outputs();
+    QList<AVOutput*> outputs();
+
+    //each(OutputOperation(data))
+    //
+    void sendData(const QByteArray& data);
+    void sendVideoFrame(const VideoFrame& frame);
+
+    void clearOutputs();
+    void addOutput(AVOutput* output);
+
+    void notifyPauseChange(AVOutput *output);
+    bool canPauseThread() const;
+    //in AVThread
+    bool pauseThread(unsigned long timeout = ULONG_MAX); //There are 2 ways to pause AVThread: 1. pause thread directly. 2. pause all outputs
+    /*
+     * in user thread when pause count < set size.
+     * 1. AVPlayer.pause(false) in player thread then call each output pause(false)
+     * 2. shortcut for AVOutput.pause(false)
+     */
+    void resumeThread();
+
+public slots:
+    //connect to renderer->aboutToClose(). test whether delete on close
+    void removeOutput(AVOutput *output);
+
+private:
+    volatile bool mCanPauseThread;
+    AVPlayer *mpPlayer;
+    int mPauseCount; //pause AVThread if equals to mOutputs.size()
+    QList<AVOutput*> mOutputs;
+    QMutex mMutex;
+    QWaitCondition mCond; //pause
+};
+
+} //namespace FAV
+
+#endif // QTAV_OUTPUTSET_H