video-infos can now print a title

v4l2/video-infos.c

@@ -232,35 +232,51 @@ fprintf(stderr, "%s not implemented\n", __func__);
 return -1;
 }
 /* --------------------------------------------------------------------- */
-
-void help(int k)
+static void help(int k)
 {
 puts("Options :");
-puts("\t-d\tselect the video device");
-puts("\t-K\tset the K parameter");
-puts("\t-l\tlist video devices");
-puts("\t-v\tincrease verbosity");
+puts("\t-d\t\tselect the video device");
+puts("\t-K\t\tset the K parameter");
+puts("\t-l\t\tlist video devices");
+puts("\t-T bla\t\tadd a title");
+puts("\t-v\t\tincrease verbosity");
 
 exit(0);
 }
 /* --------------------------------------------------------------------- */
+static void print_title(char *txt)
+{
+int	foo, l;
+
+l = strlen(txt);
+for (foo=0; foo<l+18; foo++)	putchar('*');	puts("");
+printf("******   %s   ******\n", txt);
+for (foo=0; foo<l+18; foo++)	putchar('*');	puts("\n");
+}
+/* --------------------------------------------------------------------- */
 int main(int argc, char *argv[])
 {
 int		foo, opt;
 
 char		*device = "/dev/video0";
+char		*title = NULL;
 int		K = 0;
 
-while ((opt = getopt(argc, argv, "d:hK:lv")) != -1) {
+while ((opt = getopt(argc, argv, "d:hK:lT:v")) != -1) {
 	switch(opt) {
 		case 'd':	device = optarg;	break;
 		case 'h':	help(0);		break;
 		case 'K':	K = atol(optarg);	break;
 		case 'l':	liste_des_devices(0);	break;
+		case 'T':	title = optarg;		break;
 		case 'v':	verbosity++;		break;
 		}
 	}
 
+if (NULL != title) {
+	print_title(title);
+	}
+
 foo = show_webcam_infos(device, "", K);
 fprintf(stderr, "\n\tshow_webcam_infos -> %d\n", foo);