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/*
* video.h: A program for the Video Disk Recorder
*
* See the README file for copyright information and how to reach the author.
*
*/
#ifndef __video_h_
#define __video_h_
#include "global.h"
#define LOGO_MAXHEIGHT 170
#define LOGO_MAXWIDTH 480
#define LOGO_DEFHEIGHT 100
#define LOGO_DEFWIDTH 192
#define LOGO_DEFHDWIDTH 288
#define LOGO_VMAXCOUNT 3 // count of IFrames for detection of "logo visible"
#define LOGO_IMAXCOUNT 5 // count of IFrames for detection of "logo invisible"
#define LOGO_VMARK 0.5 // percantage of pixels for visible
#define LOGO_IMARK 0.15 // percentage of pixels for invisible
class cMarkAdOverlap
{
private:
#define BEFORE 0
#define AFTER 1
MarkAdContext *macontext;
typedef int simpleHistogram[256];
typedef struct
{
int framenumber;
simpleHistogram histogram;
} histbuffer;
histbuffer *histbuf[2];
int histcnt[2];
int histframes[2];
int lastframenumber;
MarkAdPos result;
int similarCutOff;
int similarMaxCnt;
bool areSimilar(simpleHistogram &hist1, simpleHistogram &hist2);
void getHistogram(simpleHistogram &dest);
MarkAdPos *Detect();
void Clear();
public:
cMarkAdOverlap(MarkAdContext *maContext);
~cMarkAdOverlap();
MarkAdPos *Process(int FrameNumber, int Frames, bool BeforeAd);
};
class cMarkAdLogo
{
private:
enum
{
TOP_LEFT,
TOP_RIGHT,
BOTTOM_LEFT,
BOTTOM_RIGHT
};
enum
{
ERROR=-3,
UNINITIALIZED=-2,
NOLOGO=-1,
NOCHANGE=0,
LOGO=1
};
int LOGOHEIGHT; // max. 140
int LOGOWIDTH; // 192-288
#define MAXPIXEL LOGO_MAXWIDTH*LOGO_MAXHEIGHT
struct areaT
{
#ifdef VDRDEBUG
uchar source[4][MAXPIXEL]; // original picture
#endif
uchar sobel[4][MAXPIXEL]; // monochrome picture with edges (after sobel)
uchar mask[4][MAXPIXEL]; // monochrome mask of logo
uchar result[4][MAXPIXEL]; // result of sobel + mask
int rpixel[4]; // black pixel in result
int mpixel[4]; // black pixel in mask
int status; // status = LOGO on, off, uninitialized
int framenumber; // start/stop frame
int counter; // how many logo on, offs detected?
int corner; // which corner
int intensity; // intensity (higher -> brighter)
MarkAdAspectRatio aspectratio; // aspectratio
bool valid[4]; // logo mask valid?
} area;
int G[5][5];
int GX[3][3];
int GY[3][3];
MarkAdContext *macontext;
bool pixfmt_info;
int SobelPlane(int plane); // do sobel operation on plane
int Detect(int framenumber, int *logoframenumber); // ret 1 = logo, 0 = unknown, -1 = no logo
int Load(char *directory, char *file, int plane);
void Save(int framenumber, uchar picture[4][MAXPIXEL], int plane);
public:
cMarkAdLogo(MarkAdContext *maContext);
int Process(int FrameNumber, int *LogoFrameNumber);
void Clear();
};
class cMarkAdBlackBordersHoriz
{
private:
enum
{
ERROR=-3,
UNINITIALIZED=-2,
NOBORDER=-1,
NOCHANGE=0,
BORDER=1
};
int borderstatus;
int borderframenumber;
MarkAdContext *macontext;
public:
cMarkAdBlackBordersHoriz(MarkAdContext *maContext);
int Process(int FrameNumber,int *BorderFrameNumber);
void Clear();
};
class cMarkAdVideo
{
private:
MarkAdContext *macontext;
MarkAdMark mark;
MarkAdAspectRatio aspectratio;
cMarkAdBlackBordersHoriz *hborder;
cMarkAdLogo *logo;
cMarkAdOverlap *overlap;
void ResetMark();
bool AddMark(int Type, int Position, const char *Comment);
bool AspectRatioChange(MarkAdAspectRatio *a, MarkAdAspectRatio *b);
int framelast;
public:
cMarkAdVideo(MarkAdContext *maContext);
~cMarkAdVideo();
MarkAdPos *Process2ndPass(int FrameNumber, int Frames, bool BeforeAd);
MarkAdMark *Process(int FrameNumber, int FrameNumberNext);
void Clear();
};
#endif
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