gvideo.h

来自「一个由Mike Gashler完成的机器学习方面的includes neural」· C头文件 代码 · 共 60 行

/*
	Copyright (C) 2006, Mike Gashler

	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.

	see http://www.gnu.org/copyleft/lesser.html
*/

#ifndef __GVIDEO_H__
#define __GVIDEO_H__

class GPointerArray;
class GImage;


class GVideo
{
protected:
	GPointerArray* m_pFrames;
	int m_nWidth, m_nHeight;

public:
	// nWidth and nHeight specify the size of each frame in the video.
	// (The video is initialized to contain no frames.)
	GVideo(int nWidth, int nHeight);
	~GVideo();

	// Deletes all the frames and sets the size for future frames
	void SetSize(int width, int height);

	// Returns the width of each frame in the video
	int GetWidth() const { return m_nWidth; }

	// Returns the height of each frame in the video
	int GetHeight() const { return m_nHeight; }

	// Returns the number of frames
	int GetFrameCount();

	// Returns the specified frame
	GImage* GetFrame(int index);

	// Appends a blank frame to the end of the video
	void AddBlankFrame();

	// Loads a PNG file and appends it as a frame to the video. The dimensions
	// of the PNG file must match the dimensions of the video frames.
	bool LoadFrame(const char* szFilename);

	// Makes this video into a gradient magnitude video. If bForDisplay is true,
	// it will put the magnitude in each channel so that the resultant video
	// will make visual sense.
	void MakeGradientMagnitudeVideo(GVideo* pVideo, bool bForDisplay);
};

#endif // __GVIDEO_H__