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124 lines
2.6 KiB
124 lines
2.6 KiB
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#ifndef _VIDEO_H_
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#define _VIDEO_H_
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#include <stdint.h>
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#include <setjmp.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <getopt.h>
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/mman.h>
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#include <linux/videodev2.h>
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#include <list>
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#include <string>
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#include "convert.h"
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#include "inmemoryfile.h"
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#include "miniwebcam.h"
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#include "videoframe.h"
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#define VDEV_INBUFFERS 3
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enum {
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IOMODE_READ,
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IOMODE_MMAP
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};
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//
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// jpeg error handling
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//
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struct jpg_error_mgr {
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struct jpeg_error_mgr pub; /* "public" fields */
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jmp_buf setjmp_buffer; /* for return to caller */
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};
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typedef struct jpg_error_mgr *jpg_error_ptr;
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struct {
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unsigned int id;
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int min;
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int max;
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int value;
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std::string name;
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} typedef VideoDevCtrl;
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struct {
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unsigned int size;
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unsigned char* data;
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} typedef VideoInBuffer;
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#include "convert.h"
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class VideoDevice {
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private:
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protected:
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std::string conf_videodev;
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std::string conf_videofmt;
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int conf_width;
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int conf_height;
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int conf_iomode;
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ConvertData cdata;
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public:
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VideoDevice();
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~VideoDevice();
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virtual int SetDevice(std::string newdevice, int nwidth, int nheight) { return 0; };
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virtual int SetIOMode(int newiomode) { return 0; };
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virtual int Start() { return 0; };
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virtual int Stop() { return 0; };
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virtual int GetFrame (VideoFrame *destframe) { return 0; };
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virtual int SetDevCtrl(unsigned int id, int value) { return 0; };
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virtual int GetDevCtrl(unsigned int id, int *value) { return 0; };
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};
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class VideoDevice_V4L2 : public VideoDevice {
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private:
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std::list<VideoDevCtrl> vidctrls;
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int inbuffer_idx;
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VideoInBuffer inbuffer[VDEV_INBUFFERS];
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struct v4l2_cropcap cropcap;
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struct v4l2_crop crop;
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struct v4l2_format fmt;
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int fd; // filedescriptor to the video device file
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int Open();
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int Close();
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int UnInit();
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int InitMMap();
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int xioctl(int fd, int request, void *arg);
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protected:
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public:
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VideoDevice_V4L2();
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~VideoDevice_V4L2();
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int SetDevice(std::string newdevice, int nwidth, int nheight);
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int SetIOMode(int newiomode);
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int Start();
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int Stop();
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int GetFrame (VideoFrame *destframe);
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int SetDevCtrl(unsigned int id, int value);
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int GetDevCtrl(unsigned int id, int *value);
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void PrintCaps(uint32_t caps);
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void PrintFmt(struct v4l2_format *f);
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};
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#endif
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