Bibliothèque de traitements d'images en virgule flottante. http://la.buvette.org/photos/cumul/
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/*
* fonctions pour afficher les structures de V4L2
*/
#include <stdio.h>
#include <linux/videodev2.h>
#include "v4l2_pr_structs.h"
#define FP (stdout)
extern int verbosity;
/* --------------------------------------------------------------------- */
static char *fmttype2str(int type)
{
switch(type) {
case 0: return "[zero]";
case 1: return "video capture";
case 2: return "video output";
case 13: return "META capture";
}
return "???";
}
/* --------------------------------------------------------------------- */
int pr_v4l2_capability(char *txt, struct v4l2_capability *ptr)
{
fprintf(FP, "-- v4l2_capability, %-15s %p\n", txt, ptr);
fprintf(FP, " driver %s\n", ptr->driver);
fprintf(FP, " card %s\n", ptr->card);
fprintf(FP, " bus info %s\n", ptr->bus_info);
fprintf(FP, " version %X\n", ptr->version);
fprintf(FP, " capabilities %X\n", ptr->capabilities);
fprintf(FP, " device caps %X\n", ptr->device_caps);
return -1;
}
/* --------------------------------------------------------------------- */
int pr_v4l2_format(char *txt, struct v4l2_format *ptr)
{
fprintf(FP, "-- v4l2_format, %-15s %p\n", txt, ptr);
fprintf(FP, " type %d %s\n", ptr->type,/* enum v4l2_buf_type */
fmttype2str(ptr->type));
switch(ptr->type) {
case 1: // fputs(" Capture\n", FP);
fprintf(FP, " dims %dx%d\n",
ptr->fmt.pix.width,
ptr->fmt.pix.height);
break;
default: fprintf(FP, "type is %d\n", ptr->type);
break;
}
fputs(".\n", FP);
return 0;
}
/* --------------------------------------------------------------------- */
int pr_v4l2_requestbuffers(char *txt, struct v4l2_requestbuffers *ptr)
{
fprintf(FP, "-- v4l2_requestbuffers, %s %p\n", txt, ptr);
fprintf(FP, " type %d\n", ptr->type); /* enum v4l2_buf_type */
return 0;
}
/* --------------------------------------------------------------------- */
/* --------------------------------------------------------------------- */
/* --------------------------------------------------------------------- */