mqascan: print unique labels for unknown fields

mqascan.c

@@ -104,8 +104,8 @@ static const struct bitfield datasync_fields[] = {
 	{ 5,	BF_HEX,		"orig_rate",	mqa_rates },
 	{ 5,	BF_HEX,		"src_rate",	mqa_rates },
 	{ 5,	0,		"render_filter" },
-	{ 5,	BF_HEX,		"unknown" },
-	{ 1,	0,		"unknown" },
+	{ 5,	BF_HEX,		"unknown_1" },
+	{ 1,	0,		"unknown_2" },
 	{ 2,	0,		"pad" },
 	{ 8,	BF_HEX,		"mqa_level" },
 	{ 7,	BF_RET,		"items" },
@@ -138,10 +138,10 @@ static int handle_datasync(struct bitreader *b, unsigned ptype)
 		print_verbose(1, "%10s[type %d]\n", "", type[i]);
 		switch (type[i]) {
 		case 0:
-			print_field(b, 2, 0, "unknown", NULL);
-			print_field(b, 4, 0, "unknown", NULL);
-			print_field(b, 7, 0, "unknown", NULL);
-			print_field(b, 7, 0, "unknown", NULL);
+			print_field(b, 2, 0, "unknown_3", NULL);
+			print_field(b, 4, 0, "unknown_4", NULL);
+			print_field(b, 7, 0, "unknown_5", NULL);
+			print_field(b, 7, 0, "unknown_6", NULL);
 			if (stream_pos_flag) {
 				print_field(b, 27, BF_HEX, "start_offset",
 					    NULL);
@@ -157,7 +157,7 @@ static int handle_datasync(struct bitreader *b, unsigned ptype)
 		default:
 			print_field(b, size[i],
 				    BF_HEX | (size[i] > 32 ? BF_DATA : 0),
-				    "unknown", NULL);
+				    "unknown_7", NULL);
 			break;
 		}
 	}