video-infos : more informations displayed

v4l2/v4l2_pr_structs.c

@@ -3,7 +3,7 @@
  */
 
 #include  <stdio.h>
-
+#include  <inttypes.h>
 #include  <linux/videodev2.h>
 
 #include  "v4l2_pr_structs.h"
@@ -27,17 +27,87 @@ switch(type) {
 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, "   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);
 
-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;
+}
+/* --------------------------------------------------------------------- */
+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;
 }

v4l2/v4l2_pr_structs.h

@@ -6,7 +6,7 @@
 
 /* --------------------------------------------------------------------- */
 int pr_v4l2_capability(char *txt, struct v4l2_capability *ptr);
-
+int pr_v4l2_input(char *txt, struct v4l2_input *ptr);
 int pr_v4l2_format(char *txt, struct v4l2_format *ptr);
 int pr_v4l2_requestbuffers(char *txt, struct v4l2_requestbuffers *ptr);
 /* --------------------------------------------------------------------- */

v4l2/video-infos.c

@@ -18,13 +18,22 @@
 
 int		verbosity;
 
+/* --------------------------------------------------------------------- */
+static int enum_input(char *txt, int k)
+{
+
+return -1;
+}
+
 /* --------------------------------------------------------------------- */
 int show_webcam_infos(char *devname, int k)
 {
 int				vfd, foo;
 
 struct v4l2_capability		cap;
-struct v4l2_format		fmt;
+// struct v4l2_format		fmt;
+struct v4l2_input		input;
+// int 				index;
 
 // struct v4l2_requestbuffers      reqbuf;
 
@@ -40,15 +49,21 @@ if (vfd < 0) {
 
 fprintf(stderr, "\topen %s -> %d\n", devname, vfd);
 
+memset(&cap, 0, sizeof(cap));
 foo = ioctl(vfd, VIDIOC_QUERYCAP, &cap);
 if (foo < 0) {
 	perror("ioctl QUERYCAP");
 	return -4;
 	}
 pr_v4l2_capability(devname, &cap);
-if ( ! (cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) {
-	fprintf("%s : no video capture\n", devname);
+
+memset(&input, 0, sizeof(input));
+if (-1 == ioctl(vfd, VIDIOC_ENUMINPUT, &input)) {
+	perror("VIDIOC_ENUMINPUT");
+	exit(EXIT_FAILURE);
 	}
+pr_v4l2_input("input 0", &input);
+
 
 close(vfd);
 
@@ -95,7 +110,7 @@ while ((opt = getopt(argc, argv, "d:hK:lv")) != -1) {
 if (verbosity) fimg_print_version(0);
 
 foo = show_webcam_infos(device, K);
-fprintf(stderr, "\tshow_webcam_infos -> %d\n", foo);
+fprintf(stderr, "\n\tshow_webcam_infos -> %d\n", foo);
 
 return 0;
 }