experimental option to support LTC 29.97000 fps generators.

also change 29.97ndf frame-rate to 30000/1001.

git-svn-id: svn://localhost/ardour2/branches/3.0@13395 d708f5d6-7413-0410-9779-e7cbd77b26cf

libs/timecode/src/time.cc

@@ -445,12 +445,20 @@ timecode_to_frames_per_second(TimecodeFormat t)
 
 			break;
 		case timecode_2997:
-			return 29.97;
+			return (30000.0/1001.0); //29.97;
 
 			break;
 		case timecode_2997drop:
 			return (30000.0/1001.0); //29.97;
 
+			break;
+		case timecode_2997000:
+			return 29.97;
+
+			break;
+		case timecode_2997000drop:
+			return 29.97;
+
 			break;
 		case timecode_30:
 			return 30;
@@ -502,6 +510,14 @@ timecode_has_drop_frames(TimecodeFormat t)
 		case timecode_2997drop:
 			return true;
 
+			break;
+		case timecode_2997000:
+			return false;
+
+			break;
+		case timecode_2997000drop:
+			return true;
+
 			break;
 		case timecode_30:
 			return false;
@@ -554,6 +570,14 @@ timecode_format_name (TimecodeFormat const t)
 		case timecode_2997drop:
 			return "29.97 drop";
 
+			break;
+		case timecode_2997000:
+			return "29.97000";
+
+			break;
+		case timecode_2997000drop:
+			return "29.97000 drop";
+
 			break;
 		case timecode_30:
 			return "30";

libs/timecode/timecode/time.h

@@ -39,6 +39,8 @@ enum TimecodeFormat {
 	timecode_25,
 	timecode_2997,
 	timecode_2997drop,
+	timecode_2997000,
+	timecode_2997000drop,
 	timecode_30,
 	timecode_30drop,
 	timecode_5994,