CueSheet input: Implement support for ReplayGain tags

Plugins/CueSheet/CueSheet.m

@@ -106,6 +106,11 @@
 	NSString *genre = nil;
 	NSString *year = nil;
     
+    float albumGain = 0.0f;
+    float albumPeak = 0.0f;
+    float trackGain = 0.0f;
+    float trackPeak = 0.0f;
+	
 	BOOL trackAdded = NO;
 
 	NSCharacterSet *whitespace = [NSCharacterSet whitespaceAndNewlineCharacterSet];
@@ -190,7 +195,11 @@
 															album:album 
 															title:title
 															genre:genre
-															year:year]];
+															year:year
+                                                       albumGain:albumGain
+                                                       albumPeak:albumPeak
+                                                       trackGain:trackGain
+                                                       trackPeak:trackPeak]];
 			trackAdded = YES;
 		}
 		else if ([command isEqualToString:@"PERFORMER"])
@@ -253,6 +262,26 @@
 					continue;
 				}
 			}
+            else if ([type hasPrefix:@"REPLAYGAIN_"])
+            {
+                NSString *rgTag = nil;
+                if (![scanner scanUpToCharactersFromSet:whitespace intoString:&rgTag])
+                    continue;
+                if ([type hasPrefix:@"REPLAYGAIN_ALBUM_"])
+                {
+                    if ([type hasSuffix:@"GAIN"])
+                        albumGain = [rgTag floatValue];
+                    else if ([type hasSuffix:@"PEAK"])
+                        albumPeak = [rgTag floatValue];
+                }
+                else if ([type hasPrefix:@"REPLAYGAIN_TRACK_"])
+                {
+                    if ([type hasSuffix:@"GAIN"])
+                        trackGain = [rgTag floatValue];
+                    else if ([type hasSuffix:@"PEAK"])
+                        trackPeak = [rgTag floatValue];
+                }
+            }
 		}
 	}
 	

Plugins/CueSheet/CueSheetMetadataReader.m

@@ -77,6 +77,10 @@
 				[NSNumber numberWithInt:[[track track] intValue]], @"track",
 				[track genre], @"genre",
 				[NSNumber numberWithInt:[[track year] intValue]], @"year",
+                [NSNumber numberWithFloat:[track albumGain]], @"replayGainAlbumGain",
+                [NSNumber numberWithFloat:[track albumPeak]], @"replayGainAlbumPeak",
+                [NSNumber numberWithFloat:[track trackGain]], @"replayGainTrackGain",
+                [NSNumber numberWithFloat:[track trackPeak]], @"replayGainTrackPeak",
 				nil];
 		
             return [fileMetadata dictionaryByMergingWith:cuesheetMetadata];

Plugins/CueSheet/CueSheetTrack.h

@@ -19,11 +19,16 @@
 	NSString *genre;
 	NSString *year;
     
+    float albumGain;
+    float albumPeak;
+    float trackGain;
+    float trackPeak;
+
 	double time; //Starting time for the track
 }
 
-+ (id)trackWithURL:(NSURL *)u track:(NSString *)t time:(double)s artist:(NSString *)a album:(NSString *)b title:(NSString *)l genre:(NSString *)g year:(NSString *)y;
++ (id)trackWithURL:(NSURL *)u track:(NSString *)t time:(double)s artist:(NSString *)a album:(NSString *)b title:(NSString *)l genre:(NSString *)g year:(NSString *)y albumGain:(float)albumGain albumPeak:(float)albumPeak trackGain:(float)trackGain trackPeak:(float)trackPeak;
-- (id)initWithURL:(NSURL *)u track:(NSString *)t time:(double)s artist:(NSString *)a album:(NSString *)b title:(NSString *)l genre:(NSString *)g year:(NSString *)y;
+- (id)initWithURL:(NSURL *)u track:(NSString *)t time:(double)s artist:(NSString *)a album:(NSString *)b title:(NSString *)l genre:(NSString *)g year:(NSString *)y albumGain:(float)albumGain albumPeak:(float)albumPeak trackGain:(float)trackGain trackPeak:(float)trackPeak;
 
 
 - (NSString *)track;
@@ -34,6 +39,11 @@
 - (NSString *)genre;
 - (NSString *)year;
 
+- (float)albumGain;
+- (float)albumPeak;
+- (float)trackGain;
+- (float)trackPeak;
+
 - (double)time;
 
 @end

Plugins/CueSheet/CueSheetTrack.m

@@ -11,12 +11,12 @@
 
 @implementation CueSheetTrack
 
-+ (id)trackWithURL:(NSURL *)u track:(NSString *)t time:(double)s artist:(NSString *)a album:(NSString *)b title:(NSString *)l genre:(NSString *)g year:(NSString *)y
++ (id)trackWithURL:(NSURL *)u track:(NSString *)t time:(double)s artist:(NSString *)a album:(NSString *)b title:(NSString *)l genre:(NSString *)g year:(NSString *)y albumGain:(float)albumGain albumPeak:(float)albumPeak trackGain:(float)trackGain trackPeak:(float)trackPeak
 {
-	return [[CueSheetTrack alloc] initWithURL:u track:t time:s artist:a album:b title:l genre:g year:y];
+	return [[CueSheetTrack alloc] initWithURL:u track:t time:s artist:a album:b title:l genre:g year:y albumGain:albumGain albumPeak:albumPeak trackGain:trackGain trackPeak:trackPeak];
 }
 
-- (id)initWithURL:(NSURL *)u track:(NSString *)t time:(double)s artist:(NSString *)a album:(NSString *)b title:(NSString *)l genre:(NSString *)g year:(NSString *)y
+- (id)initWithURL:(NSURL *)u track:(NSString *)t time:(double)s artist:(NSString *)a album:(NSString *)b title:(NSString *)l genre:(NSString *)g year:(NSString *)y albumGain:(float)albumGain albumPeak:(float)albumPeak trackGain:(float)trackGain trackPeak:(float)trackPeak
 {
 	self = [super init];
 	if (self)
@@ -30,6 +30,11 @@
 		year = [y copy];
 		
 		time = s;
+        
+        self->albumGain = albumGain;
+        self->albumPeak = albumPeak;
+        self->trackGain = trackGain;
+        self->trackPeak = trackPeak;
 	}
 	
 	return self;
@@ -75,6 +80,26 @@
 	return year;
 }
 
+- (float) albumGain
+{
+    return albumGain;
+}
+
+- (float) albumPeak
+{
+    return albumPeak;
+}
+
+- (float) trackGain
+{
+    return trackGain;
+}
+
+- (float) trackPeak
+{
+    return trackPeak;
+}
+
 -(NSString *) description {
     return [NSString stringWithFormat:@"CueSheetTrack{track: %@,  url: %@, artist: %@, album: %@, title: %@, genre: %@, year: %@}", track, [url absoluteURL], artist, album, title, genre, year];
 }