icvvideo.h

Program use openCV to demo edge detection (algorithm Gradient).

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#ifndef __ICVVIDEO_H__
#define __ICVVIDEO_H__

#ifdef __cplusplus
extern "C" {
#endif

#include "cvcam.h"
#include "cvvidtypes.h"
#include "cv.h"
#include "pthread.h"
#include "X11/Xlib.h"


/* main video cycle for single camera*/
void* icvVideoCaptureProc(void* arg);

int icvVideoPauseCamera(int camera);

int icvVideoResumeCamera(int camera);

int icvVideoInit(int CurrentCamera);

int icvVideoStart(int camera);

int icvVideoStop(int camera);

/* returns depth in bits, 0 for unsupported formats */
int icvVideoFormat2Depth(int format);

/* Initializes most fields of CvVideoCamera struct */
int icvVideoSetDefaultValues(int camera, int device, int channel,
     struct video_capability VidCap);

#define IF_GETTING_PROPERTY(someproperty) if(!strcmp(someproperty,property))
#define IF_SETTING_PROPERTY(someproperty) if(!strcmp(someproperty,property))
#define CAPTURING 0
#define STOPPING  1
#define FINISHED  2
#define READY     3
#define STARTING  4

typedef struct
{
int device;
int channel;
pthread_mutex_t ioctlmutex;     /* protects access to the unix device for that camera */
int enabled;
int rendered;
int initialised;
int paused;
pthread_mutex_t pausemutex;  /* to pause acquisition */
pthread_mutex_t capturestatemutex; /* protects the capturestate and renderstate fields (used in capture, main and render threads) */
pthread_cond_t capturestatecond;
volatile int capturestate;  /* State of main loop for camera can be CAPTURING,
                                             STOPPING, FINISHED or READY */
volatile int   renderstate;  /*non zero if rendering loop exists*/
void (*callback)(IplImage* frame);
CameraDescription description;
VideoFormat videopp;
struct video_mmap vid_mmap;
struct video_mbuf mbuf;
char* memorymap;
__u16 imagepalette;             /* output image palette */
pthread_rwlock_t *framelock; /* protect each frame (1 rwlock per frame)*/
pthread_mutex_t lastframemutex; /* protects frame number */
volatile int lastframe;
pthread_cond_t updatedcond;
pthread_mutex_t updatedmutex;
int updated;
pthread_t thread;
Window window;
int renderwidth;
int renderheight;
}CvVideoCamera;



#ifdef __cplusplus
}
#endif



#endif //__ICVVIDEO_H__