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2026-02-21 17:11:31 +09:00
commit 18b4338361
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--- a/project/fm_viewer/fav/SubtitleProcessor.h
+++ b/project/fm_viewer/fav/SubtitleProcessor.h
@@ -0,0 +1,114 @@
+/******************************************************************************
+    QtAV:  Multimedia framework based on Qt and FFmpeg
+    Copyright (C) 2012-2016 Wang Bin <wbsecg1@gmail.com>
+
+*   This file is part of QtAV (from 2014)
+
+    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_SUBTITLEPROCESSOR_H
+#define QTAV_SUBTITLEPROCESSOR_H
+
+#include <QtCore/QList>
+#include <QtGui/QImage>
+#include "_fav_constants.h"
+#include "Subtitle.h>
+
+namespace FAV {
+#if !(DO_NOT_USE_SUBTITLE)
+typedef QString SubtitleProcessorId;
+class Q_AV_PRIVATE_EXPORT SubtitleProcessor
+{
+public:
+    SubtitleProcessor();
+    virtual ~SubtitleProcessor() {}
+    virtual SubtitleProcessorId id() const = 0;
+    virtual QString name() const = 0;
+    /*!
+     * \brief supportedTypes
+     * \return a list of supported suffixes. e.g. [ "ass", "ssa", "srt" ]
+     * used to find subtitle files with given suffixes
+     */
+    virtual QStringList supportedTypes() const = 0;
+    /*!
+     * \brief process
+     * process subtitle from QIODevice.
+     * \param dev dev is open and you don't have to close it
+     * \return false if failed or does not supports iodevice, e.g. does not support sequential device
+     */
+    virtual bool process(QIODevice* dev) = 0;
+    /*!
+     * \brief process
+     * default behavior is calling process(QFile*)
+     * \param path
+     * \return false if failed or does not support file
+     */
+    virtual bool process(const QString& path);
+    /*!
+     * \brief timestamps
+     * call this after process(). SubtitleFrame.text must be set
+     * \return
+     */
+
+    virtual QList<SubtitleFrame> frames() const = 0;
+    virtual bool canRender() const { return false;}
+    // return false if not supported
+    virtual bool processHeader(const QByteArray& codec, const QByteArray& data) {
+        Q_UNUSED(codec);
+        Q_UNUSED(data);
+        return false;
+    }
+    // return timestamp, insert it to Subtitle's internal linkedlist. can be invalid if only support renderering
+    virtual SubtitleFrame processLine(const QByteArray& data, qreal pts = -1, qreal duration = 0) = 0;
+    virtual QString getText(qreal pts) const = 0;
+    // default null image
+    virtual QImage getImage(qreal pts, QRect* boundingRect = 0);
+    virtual SubImageSet getSubImages(qreal pts, QRect* boundingRect = 0);
+    void setFrameSize(int width, int height);
+    QSize frameSize() const;
+    int frameWidth() const;
+    int frameHeight() const;
+
+    // font properties: libass only now
+    virtual void setFontFile(const QString& file) {Q_UNUSED(file);}
+    virtual void setFontsDir(const QString& dir) {Q_UNUSED(dir);}
+    virtual void setFontFileForced(bool force) {Q_UNUSED(force);}
+public:
+    static void registerAll();
+    template<class C> static bool Register(SubtitleProcessorId id, const char* name) { return Register(id, create<C>, name);}
+    static SubtitleProcessor* create(SubtitleProcessorId id);
+    static SubtitleProcessor* create(const char* name = "FFmpeg");
+    /*!
+     * \brief next
+     * \param id NULL to get the first id address
+     * \return address of id or NULL if not found/end
+     */
+    static SubtitleProcessorId* next(SubtitleProcessorId* id = 0);
+    static const char* name(SubtitleProcessorId id);
+    static SubtitleProcessorId id(const char* name);
+private:
+    template<class C> static SubtitleProcessor* create() { return new C();}
+    typedef SubtitleProcessor* (*SubtitleProcessorCreator)();
+    static bool Register(SubtitleProcessorId id, SubtitleProcessorCreator, const char *name);
+protected:
+    // default do nothing
+    virtual void onFrameSizeChanged(int width, int height);
+private:
+    int m_width, m_height;
+};
+#endif // #if !(DO_NOT_USE_SUBTITLE)
+} //namespace FAV
+#endif // QTAV_SUBTITLEPROCESSOR_H