v4l2uvc.h

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/*******************************************************************************
#               luvcview: Sdl video Usb Video Class grabber          .         #
#This package work with the Logitech UVC based webcams with the mjpeg feature. #
#All the decoding is in user space with the embedded jpeg decoder              #
#.                                                                             #
#               Copyright (C) 2005 2006 Laurent Pinchart &&  Michel Xhaard     #
#                                                                              #
# This program is free software; you can redistribute it and/or modify         #
# it under the terms of the GNU General Public License as published by         #
# the Free Software Foundation; either version 2 of the License, or            #
# (at your option) any later version.                                          #
#                                                                              #
# This program is distributed in the hope that it will be useful,              #
# but WITHOUT ANY WARRANTY; without even the implied warranty of               #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                #
# GNU General Public License for more details.                                 #
#                                                                              #
# You should have received a copy of the GNU General Public License            #
# along with this program; if not, write to the Free Software                  #
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA    #
#                                                                              #
*******************************************************************************/

#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/select.h>
#include <linux/videodev2.h>

#include "uvcvideo.h"
#include "dynctrl-logitech.h"


#define NB_BUFFER 4
#define DHT_SIZE 432



struct vdIn {
    int fd;
    char *videodevice;
    char *status;
    char *pictName;
    struct v4l2_capability cap;
    struct v4l2_format fmt;
    struct v4l2_buffer buf;
    struct v4l2_requestbuffers rb;
    void *mem[NB_BUFFER];
    unsigned char *tmpbuffer;
    unsigned char *framebuffer;
    int isstreaming;
    int grabmethod;
    int width;
    int height;
    float fps;
    int formatIn;
    int formatOut;
    int framesizeIn;
    int signalquit;
    int toggleAvi;
    int getPict;
    int rawFrameCapture;
    /* raw frame capture */
    unsigned int fileCounter;
    /* raw frame stream capture */
    unsigned int rfsFramesWritten;
    unsigned int rfsBytesWritten;
    /* raw stream capture */
    FILE *captureFile;
    unsigned int framesWritten;
    unsigned int bytesWritten;
    int framecount;
    int recordstart;
    int recordtime;
};
int
init_videoIn(struct vdIn *vd, char *device, int width, int height, float fps,
             int format, int grabmethod, char *avifilename);
int enum_controls(int vd);
int save_controls(int vd, const char* filename);
int load_controls(int vd, const char* filename);
             
int uvcGrab(struct vdIn *vd);
int close_v4l2(struct vdIn *vd);

int v4l2GetControl(struct vdIn *vd, int control);
int v4l2SetControl(struct vdIn *vd, int control, int value);
int v4l2UpControl(struct vdIn *vd, int control);
int v4l2DownControl(struct vdIn *vd, int control);
int v4l2ToggleControl(struct vdIn *vd, int control);
int v4l2ResetControl(struct vdIn *vd, int control);
int v4l2ResetPanTilt(struct vdIn *vd);
int v4L2UpDownPan(struct vdIn *vd, short inc);
int v4L2UpDownTilt(struct vdIn *vd,short inc);
int v4L2UpDownPanTilt(struct vdIn *vd, short inc_p, short inc_t);
int v4l2SetLightFrequencyFilter(struct vdIn *vd,int flt);
int enum_frame_intervals(int dev, __u32 pixfmt, __u32 width, __u32 height);
int enum_frame_sizes(int dev, __u32 pixfmt);
int enum_frame_formats(int dev, unsigned int *supported_formats, unsigned int max_formats);

//Added by Markus Bader
int check_videoIn(struct vdIn *vd, char *device);
int v4l2ResetPan(struct vdIn *vd);
int v4l2ResetTilt(struct vdIn *vd);