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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 250
#define LOGO_MAXWIDTH 480
#define LOGO_DEFHEIGHT 100
#define LOGO_DEFWIDTH 192
#define LOGO_DEFHDWIDTH 288
#define LOGO_DEFHDHEIGHT 180
#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
enum
{
LOGO_ERROR=-3,
LOGO_UNINITIALIZED=-2,
LOGO_INVISIBLE=-1,
LOGO_NOCHANGE=0,
LOGO_VISIBLE=1
};
enum
{
HBORDER_UNINITIALIZED=-2,
HBORDER_INVISIBLE=-1,
HBORDER_VISIBLE=1
};
enum
{
VBORDER_UNINITIALIZED=-2,
VBORDER_INVISIBLE=-1,
VBORDER_VISIBLE=1
};
#define MINBORDERSECS 60
enum
{
OV_BEFORE=0,
OV_AFTER=1
};
class cMarkAdOverlap
{
private:
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, bool H264);
};
class cMarkAdLogo
{
private:
enum
{
TOP_LEFT,
TOP_RIGHT,
BOTTOM_LEFT,
BOTTOM_RIGHT
};
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 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(const 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);
int Status()
{
return area.status;
}
void SetStatusLogoInvisible()
{
if (area.status==LOGO_VISIBLE)
area.status=LOGO_INVISIBLE;
}
void SetStatusUninitialized()
{
if (area.status!=LOGO_UNINITIALIZED)
area.status=LOGO_UNINITIALIZED;
}
void Clear();
};
class cMarkAdBlackBordersHoriz
{
private:
int borderstatus;
int borderframenumber;
MarkAdContext *macontext;
public:
cMarkAdBlackBordersHoriz(MarkAdContext *maContext);
int Process(int FrameNumber,int *BorderFrameNumber);
int Status()
{
return borderstatus;
}
void SetStatusBorderInvisible() {
borderstatus=HBORDER_INVISIBLE;
borderframenumber=-1;
}
void Clear();
};
class cMarkAdBlackBordersVert
{
private:
int borderstatus;
int borderframenumber;
MarkAdContext *macontext;
public:
cMarkAdBlackBordersVert(MarkAdContext *maContext);
int Process(int FrameNumber,int *BorderFrameNumber);
int Status()
{
return borderstatus;
}
void SetStatusBorderInvisible() {
borderstatus=VBORDER_INVISIBLE;
borderframenumber=-1;
}
void Clear();
};
class cMarkAdVideo
{
private:
MarkAdContext *macontext;
MarkAdMarks marks;
MarkAdAspectRatio aspectratio;
cMarkAdBlackBordersHoriz *hborder;
cMarkAdBlackBordersVert *vborder;
cMarkAdLogo *logo;
cMarkAdOverlap *overlap;
void resetmarks();
bool addmark(int type, int position, MarkAdAspectRatio *before=NULL,
MarkAdAspectRatio *after=NULL);
bool aspectratiochange(MarkAdAspectRatio &a, MarkAdAspectRatio &b, bool &start);
int framelast;
int framebeforelast;
public:
cMarkAdVideo(MarkAdContext *maContext);
~cMarkAdVideo();
MarkAdPos *ProcessOverlap(int FrameNumber, int Frames, bool BeforeAd, bool H264);
MarkAdMarks *Process(int FrameNumber, int FrameNumberNext);
void Clear();
};
#endif
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