FloatImg4PythonBinding/v4l2/v4l2_pr_structs.c

/*
 *	fonctions pour afficher les structures de V4L2
 */

#include  <stdio.h>
#include  <inttypes.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 "???";
}
/* --------------------------------------------------------------------- */
static void pr_capabilities(uint32_t caps)
{
fputs("     ", FP);

if (caps & V4L2_CAP_VIDEO_CAPTURE)	fputs("vcapt ", FP);
if (caps & V4L2_CAP_VIDEO_OUTPUT)	fputs("vout ", FP);
if (caps & V4L2_CAP_VIDEO_OVERLAY)	fputs("overlay ", FP);
if (caps & V4L2_CAP_VBI_CAPTURE)	fputs("vbicapt ", FP);
if (caps & V4L2_CAP_VBI_OUTPUT)		fputs("vbiout ", FP);

		/* to be continued */

if (caps & V4L2_CAP_AUDIO)		fputs("audio ", FP);


if (caps & V4L2_CAP_SDR_CAPTURE)	fputs("sdrcapt ", FP);
if (caps & V4L2_CAP_EXT_PIX_FORMAT)	fputs("extpix ", FP);
if (caps & V4L2_CAP_SDR_OUTPUT)		fputs("sdrout ", FP);




if (caps & V4L2_CAP_READWRITE)		fputs("rwsysc ", FP);
if (caps & V4L2_CAP_ASYNCIO)		fputs("asyncio ", FP);
if (caps & V4L2_CAP_STREAMING)		fputs("stream ", FP);


fputs("\n", FP);
}
/* --------------------------------------------------------------------- */
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         0x%X\n", ptr->version);
fprintf(FP, "   capabilities    0x%X\n", ptr->capabilities);
pr_capabilities(ptr->capabilities);
fprintf(FP, "   device caps     0x%X\n", ptr->device_caps);

return -1;
}
/* --------------------------------------------------------------------- */
static char *str_input_type(int t)
{
switch (t) {
	case V4L2_INPUT_TYPE_TUNER:	return "tuner";
	case V4L2_INPUT_TYPE_CAMERA:	return "camera";
	case V4L2_INPUT_TYPE_TOUCH:	return "touch";
	}
return "???";
}
/* --------------------------------------------------------------------- */
static void pr_input_status(uint32_t st)
{
if (st & V4L2_IN_ST_NO_POWER)		fputs("nopower", FP);
if (st & V4L2_IN_ST_NO_SIGNAL)		fputs("nosignal", FP);
if (st & V4L2_IN_ST_NO_COLOR)		fputs("nocolor", FP);

		/* to be continued */


}
/* --------------------------------------------------------------------- */
int pr_v4l2_input(char *txt, struct v4l2_input *ptr)
{
fprintf(FP, "-- v4l2_input, %-15s  %p\n", txt, ptr);

fprintf(FP, "   index           %d\n",   ptr->index);
fprintf(FP, "   name            %s\n",   ptr->name);
fprintf(FP, "   type            %d    %s\n", ptr->type,
					str_input_type(ptr->type));
fprintf(FP, "   audioset        0x%X\n", ptr->audioset);
fprintf(FP, "   tuner           0x%X\n", ptr->tuner);
/* XXX				v4l2_std_id  std; */
fprintf(FP, "   status          %d\n",   ptr->status);
pr_input_status(ptr->status);
fprintf(FP, "   capabilities    0x%X\n", ptr->capabilities);

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;
}
/* --------------------------------------------------------------------- */
/* --------------------------------------------------------------------- */
/* --------------------------------------------------------------------- */