more fun with metadata

floatimg.h

@@ -2,9 +2,10 @@
  *			floatimg.h
  *			ugly code from tTh
  *	http://la.buvette.org/photos/cumul
+ *	https://git.tetalab.org/tTh/FloatImg
  */
 
-#define		FIMG_VERSION	(181)
+#define		FIMG_VERSION	(182)
 #define		RELEASE_NAME	("noname")
 /*
  *	in memory descriptor
@@ -35,7 +36,7 @@ typedef struct {
 typedef struct {
 	char		magic[8];	// this is not an asciiz !
 	struct timeval	timestamp;
-	uint64_t	pid;		// process id of the creator
+	uint64_t	cpid;		// process id of the creator
 	int32_t		count;
 	float		fval;
 	char		idcam[32];

lib/fimg-file.c

@@ -68,11 +68,16 @@ FILE		*fp;
 int		foo, nbre;
 FimgFileHead	filehead;
 
-#if 1 // DEBUG_LEVEL
+#if DEBUG_LEVEL
 fprintf(stderr, ">>> %s ( %p '%s' %p %d )\n", __func__, fimg,
 						fname, pmd, notused);
 #endif
 
+if (notused) {
+	fprintf(stderr, "%s: notused must be 0, was %d\n", \
+			__func__,			notused);
+	}
+
 if (FIMG_TYPE_RGB != fimg->type) {
 	fprintf(stderr, "%s : bad type %d\n", __func__, fimg->type);
 	return -8;
@@ -147,6 +152,11 @@ fprintf(stderr, ">>> %-25s ( %p '%s' %d )\n", __func__, fimg,
 						fname, notused);
 #endif
 
+if (notused) {
+	fprintf(stderr, "%s: notused must be 0, was %d\n", \
+			__func__,			notused);
+	}
+
 if (FIMG_TYPE_RGB != fimg->type) {
 	fprintf(stderr, "%s : bad type %d\n", __func__, fimg->type);
 	return -8;

lib/metadata.c

@@ -32,8 +32,10 @@ int fimg_show_metadata(FimgMetaData *pmd, char *title, int notused)
 int		foo;
 double		doubletime;
 
+#if DEBUG_LEVEL
 fprintf(stderr, ">>> %s ( %p '%s' 0x%08x )\n", __func__,
 				pmd, title, notused);
+#endif
 
 if (verbosity) {
 	fprintf(stderr, "sizeof(metadata)     = %ld\n",    \
@@ -46,7 +48,7 @@ fprintf(stderr, "seconds sc. epoch    = %ld\n", pmd->timestamp.tv_sec);
 doubletime = (double)pmd->timestamp.tv_sec +			\
 		(double)pmd->timestamp.tv_usec / 1e6;
 fprintf(stderr, "dtime of day         = %e\n", doubletime);
-fprintf(stderr, "creator pid          = %ld\n", pmd->pid);
+fprintf(stderr, "creator pid          = %ld\n", pmd->cpid);
 fprintf(stderr, "counter              = %d\n", pmd->count);
 fprintf(stderr, "float value          = %.3f\n", pmd->fval);
 fprintf(stderr, "id camera            = '%s'\n", pmd->idcam);
@@ -78,15 +80,18 @@ if (foo) {
 	perror("omg");
 	}
 else	{
-	fprintf(stderr, "Time of day  %12ld  %12ld\n", tvl.tv_sec, tvl.tv_usec);
+	if (verbosity) {
+		fprintf(stderr, "Time of day %12ld  %12ld\n", \
+					tvl.tv_sec, tvl.tv_usec);
+		}
 	memcpy(&(pmd->timestamp), &tvl, sizeof(struct timeval));
 	}
 
-pmd->pid = getpid();
+pmd->cpid = getpid();
 pmd->count    = 0;
 pmd->fval     = 255.0;
 strcpy(pmd->idcam, "<unknow>");
-pmd->origin   = 0x55555555;
+pmd->origin   = 0xdeadbeef;
 
 return 0;
 }
@@ -98,9 +103,9 @@ FimgFileHead		filehead;
 FimgMetaData		metadata;
 int			foo;
 
-// #if DEBUG_LEVEL
+#if DEBUG_LEVEL
 fprintf(stderr, ">>> %s ( '%s' %p )\n", __func__, fname, pmd);
-// #endif
+#endif
 
 if (NULL==(fp=fopen(fname, "r"))) {
 	perror(fname);
@@ -136,7 +141,8 @@ if (1 != foo) {
 fclose(fp);		/* got all needed datas */
 
 if (memcmp(metadata.magic, "metadata", 8)) {
-	fprintf(stderr, "'%s' invalid metadata.\n", fname);
+	fprintf(stderr, "'%s' invalid metadata\n", fname);
+	puts_magic_8(metadata.magic, stderr);
 	return -6;
 	}
 

lib/t.c

@@ -28,6 +28,9 @@ foo = fimg_default_metadata(&Md);
 
 foo = fimg_get_metadata_from_file(fname, &Md);
 fprintf(stderr, "%s : get metadata -> %d\n", fname, foo);
+if (foo) {
+	return foo;
+	}
 
 foo = fimg_show_metadata(&Md, fname, 0);
 

tools/fimgmetadata.c

@@ -13,29 +13,89 @@
 
 int		verbosity;
 
+/* --------------------------------------------------------------------- */
+enum comId {	C_timestamp, C_count, C_fval, C_cpid, C_origin, 
+		C_idcam, C_all };
+
+typedef struct {
+	char		*name;
+	int		id;
+	} Cmd;
+
+Cmd Cmd_list[] = {
+	{ "timestamp",		C_timestamp	},
+	{ "cpid",		C_cpid		},
+	{ "count",		C_count		},
+	{ "fval",		C_fval		},
+	{ "origin",		C_origin	},
+	{ "idcam",		C_idcam		},
+	{ "all",		C_all		},
+	{ NULL,			0,		}
+	};
+
+/* --------------------------------------------------------------------- */
+int lookup_cmd(char *txt)
+{
+Cmd		*cmd;
+int		n;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( '%s' )\n", __func__, txt);
+#endif
+
+for (n=0, cmd=Cmd_list; cmd->name; cmd++, n++) {
+#if DEBUG_LEVEL > 1
+	fprintf(stderr, "      try %-12s    %3d\n", cmd->name, n);
+#endif
+	if (!strcmp(cmd->name, txt)) {
+		// fprintf(stderr, "found '%s' at %d\n", txt, n);
+		return cmd->id;
+		}
+	}
+return -1;		/* NOT FOUND */
+}
 /* --------------------------------------------------------------------- */
 int get_print_metadata(char *fname, char *command)
 {
-int		foo;
+int		foo, action;
 FimgMetaData	metadata;
 
-// #if DEBUG_LEVEL
+#if DEBUG_LEVEL
-fprintf(stderr, ">>> %s ( '%s' %s )\n", __func__, fname, command);
+fprintf(stderr, ">>> %s ( '%s' '%s' )\n", __func__, fname, command);
-// #endif
+#endif
 
 foo = fimg_get_metadata_from_file(fname, &metadata);
 if (foo)	return foo;
 
-/* switch on command here, please */
+/* switch on command here */
+action = lookup_cmd(command);
+// fprintf(stderr, "    command '%s' -> %d\n", command, action);
 
-fimg_show_metadata(&metadata, fname, 0);
+switch(action)	{
+	case C_timestamp:
+		printf("ts %ld\n", metadata.timestamp.tv_sec);	break;
+	case C_count:
+		printf("count %d\n", metadata.count);		break;
+	case C_fval:
+		printf("fval %f\n", metadata.fval);		break;
+	case C_cpid:
+		printf("cpid %ld\n", metadata.cpid);		break;
+	case C_origin:
+		printf("origin 0x%x\n", metadata.origin);	break;
+	case C_idcam:
+		printf("camid \"%s\"\n", metadata.idcam);	break;
+	case C_all:
+		fimg_show_metadata(&metadata, fname, 0);	break;
+	default:
+		fprintf(stderr, "WTF?\n");			exit(1);
+	}
 
 return 0;
 }
 /* --------------------------------------------------------------------- */
 void help(void)
 {
-fprintf(stderr, "*** fimgmetadata (%s, %s)\n", __DATE__, __TIME__);
+fprintf(stderr, "*** Fimg Metadata Reader (%s, %s)\n", __DATE__, __TIME__);
 fimg_print_version(1);
 exit(0);
 }
@@ -60,7 +120,7 @@ if (2 != nbargs) {
 	exit(1);
 	}
 
-foo = get_print_metadata(argv[optind], argv[optind+1]);
+foo = get_print_metadata(argv[optind+1], argv[optind]);
 if (foo) fprintf(stderr, "got a %d from job\n", foo);
 
 return 0;

tools/mkfimg.c

@@ -77,8 +77,9 @@ puts("Usage:\tmkfimg [options]  quux.fimg width height");
 
 puts("\t-k N.N\tgive a float parameter");
 puts("\t-L\tlist howto make a pic");
-fputs("\t-t bla\thowto make the pic :\n\t\t  | ", stdout);
+puts("\t-m\tadd faked metadata");
 
+fputs("\t-t bla\thowto make the pic :\n\t\t  | ", stdout);
 for (foo=cc=0; types[foo].code; foo++) {
 	cc += printf("%s ", types[foo].name);
 	if (cc>35) { cc=0; printf("\n\t\t  | "); }
@@ -179,7 +180,7 @@ switch(type) {
 	}
 
 if (wrmdata) {
-	fprintf(stderr, "%s: warning, metadata is bogus\n", argv[0]);
+	// fprintf(stderr, "%s: warning, metadata is bogus\n", argv[0]);
 	(void)fimg_default_metadata(&metadata);
 	sprintf(metadata.idcam, "mkfimg (libv %d)", FIMG_VERSION);
 	foo = fimg_dumpmd_to_file(&fimg, fname, &metadata, 0);