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2026-02-21 17:11:31 +09:00
commit 18b4338361
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--- a/project/fm_viewer/fav/AVOutput.h
+++ b/project/fm_viewer/fav/AVOutput.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
+
+    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 QAV_AVOUTPUT_H
+#define QAV_AVOUTPUT_H
+
+#include <QtCore/QByteArray>
+#include "_fav_constants.h"
+
+/*!
+ * TODO: add api id(), name(), detail()
+ */
+
+namespace FAV {
+
+class AVDecoder;
+class AVOutputPrivate;
+class Filter;
+class Statistics;
+class OutputSet;
+class Q_AV_EXPORT AVOutput
+{
+    DPTR_DECLARE_PRIVATE(AVOutput)
+public:
+    AVOutput();
+    virtual ~AVOutput();
+    bool isAvailable() const;
+
+    //void addSource(AVPlayer* player); //call player.addVideoRenderer(this)
+    //void removeSource(AVPlayer* player);
+    //Demuxer thread automatically paused because packets will be full
+    //only pause the renderering, the thread going on. If all outputs are paused, then pause the thread(OutputSet.tryPause)
+    //TODO: what about audio's pause api?
+    void pause(bool p); //processEvents when waiting?
+    bool isPaused() const;
+    QList<Filter*>& filters();
+    /*!
+     * \brief installFilter
+     * Insert a filter at position 'index' of current filter list.
+     * If the filter is already installed, it will move to the correct index.
+     * \param index A nagative index == size() + index. If index >= size(), append at last
+     * \return false if already installed
+     */
+    bool installFilter(Filter *filter, int index = 0x7fffffff);
+    bool uninstallFilter(Filter *filter);
+protected:
+    AVOutput(AVOutputPrivate& d);
+    /*
+     * If the pause state is true setted by pause(true), then block the thread and wait for pause state changed, i.e. pause(false)
+     * and return true. Otherwise, return false immediatly.
+     */
+    Q_DECL_DEPRECATED bool tryPause(); //move to OutputSet
+    //TODO: we need an active set
+    void addOutputSet(OutputSet *set);
+    void removeOutputSet(OutputSet *set);
+    void attach(OutputSet *set); //add this to set
+    void detach(OutputSet *set = 0); //detatch from (all, if 0) output set(s)
+    // for thread safe
+    void hanlePendingTasks();
+
+    DPTR_DECLARE(AVOutput)
+
+private:
+    // for proxy VideoOutput
+    virtual void setStatistics(Statistics* statistics); //called by friend AVPlayer
+    virtual bool onInstallFilter(Filter *filter, int index);
+    virtual bool onUninstallFilter(Filter *filter);
+    // only called in handlePaintEvent. But filters may change. so required by proxy to update it's filters
+    virtual bool onHanlePendingTasks(); //return true: proxy update filters
+    friend class AVPlayer;
+    friend class OutputSet;
+    friend class VideoOutput;
+};
+
+} //namespace FAV
+#endif //QAV_AVOUTPUT_H