first commit

2026-02-21 17:11:31 +09:00
commit 18b4338361
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--- a/project/fm_viewer/fav/ImageConverter.h
+++ b/project/fm_viewer/fav/ImageConverter.h
@@ -0,0 +1,118 @@
+/******************************************************************************
+    ImageConverter: Base class for image resizing & color model convertion
+    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 QTAV_IMAGECONVERTER_H
+#define QTAV_IMAGECONVERTER_H
+
+#include "_fav_constants.h"
+#include "VideoFormat.h"
+#include <QtCore/QVector>
+
+namespace FAV {
+
+typedef int ImageConverterId;
+class ImageConverterPrivate;
+class ImageConverter //export is not needed
+{
+    DPTR_DECLARE_PRIVATE(ImageConverter)
+public:
+    ImageConverter();
+    virtual ~ImageConverter();
+
+    QByteArray outData() const;
+    // return false if i/o format not supported, or size is not valid.
+    // TODO: use isSupported(i/o format);
+    virtual bool check() const;
+    void setInSize(int width, int height);
+    void setOutSize(int width, int height);
+    void setInFormat(const VideoFormat& format);
+    void setInFormat(VideoFormat::PixelFormat format);
+    void setInFormat(int format);
+    void setOutFormat(const VideoFormat& format);
+    void setOutFormat(VideoFormat::PixelFormat format);
+    void setOutFormat(int formate);
+    // default is full range.
+    void setInRange(ColorRange range);
+    ColorRange inRange() const;
+    // default is full range
+    void setOutRange(ColorRange range);
+    ColorRange outRange() const;
+    /*!
+     * brightness, contrast, saturation: -100~100
+     * If value changes, setup sws
+     */
+    void setBrightness(int value);
+    int brightness() const;
+    void setContrast(int value);
+    int contrast() const;
+    void setSaturation(int value);
+    int saturation() const;
+    QVector<quint8*> outPlanes() const;
+    QVector<int> outLineSizes() const;
+    virtual bool convert(const quint8 *const src[], const int srcStride[]);
+    virtual bool convert(const quint8 *const src[], const int srcStride[], quint8 *const dst[], const int dstStride[]) = 0;
+public:
+    template<class C> static bool Register(ImageConverterId id, const char* name) { return Register(id, create<C>, name);}
+    static ImageConverter* create(ImageConverterId id);
+    static ImageConverter* create(const char* name);
+    /*!
+     * \brief next
+     * \param id NULL to get the first id address
+     * \return address of id or NULL if not found/end
+     */
+    static ImageConverterId* next(ImageConverterId* id = 0);
+    static const char* name(ImageConverterId id);
+    static ImageConverterId id(const char* name);
+private:
+    template<class C> static ImageConverter* create() { return new C();}
+    typedef ImageConverter* (*ImageConverterCreator)();
+    static bool Register(ImageConverterId id, ImageConverterCreator, const char *name);
+protected:
+    ImageConverter(ImageConverterPrivate& d);
+    //Allocate memory for out data. Called in setOutFormat()
+    virtual bool prepareData(); //Allocate memory for out data
+    DPTR_DECLARE(ImageConverter)
+};
+
+class ImageConverterFFPrivate;
+/*!
+ * \brief The ImageConverterFF class
+ * based on libswscale
+ */
+class ImageConverterFF Q_DECL_FINAL: public ImageConverter //Q_AV_EXPORT is not needed
+{
+    DPTR_DECLARE_PRIVATE(ImageConverterFF)
+public:
+    ImageConverterFF();
+    bool check() const Q_DECL_OVERRIDE;
+    // FIXME: why match to the pure virtual one if not declare here?
+    bool convert(const quint8 *const src[], const int srcStride[]) Q_DECL_OVERRIDE { return ImageConverter::convert(src, srcStride);}
+    bool convert(const quint8 *const src[], const int srcStride[], quint8 *const dst[], const int dstStride[]) Q_DECL_OVERRIDE;
+};
+typedef ImageConverterFF ImageConverterSWS;
+
+//ImageConverter* c = ImageConverter::create(ImageConverterId_FF);
+extern ImageConverterId ImageConverterId_FF;
+extern ImageConverterId ImageConverterId_IPP;
+
+} //namespace FAV
+#endif // QTAV_IMAGECONVERTER_H