Fixed 100% CPU usage on shorten file change by disabling optimizatins in Shorten framework. It seems to be a GCC optimization bug.

Frameworks/Shorten/Shorten.xcodeproj/project.pbxproj

@@ -255,6 +255,7 @@
 				FRAMEWORK_VERSION = A;
 				GCC_GENERATE_DEBUGGING_SYMBOLS = NO;
 				GCC_MODEL_TUNING = G5;
+				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PRECOMPILE_PREFIX_HEADER = NO;
 				GCC_PREFIX_HEADER = "";
 				INFOPLIST_FILE = Info.plist;

Plugins/Shorten/ShortenDecoder.h

@@ -22,6 +22,7 @@
 	int bitsPerSample;
 	float frequency;
 	double length;
+	bool seekTable;
 }
 
 @end

Plugins/Shorten/ShortenDecoder.mm

@@ -29,8 +29,8 @@
 	
 	bufferSize = decoder->shn_get_buffer_block_size(NUM_DEFAULT_BUFFER_BLOCKS);
 	
-	decoder->file_info(NULL, &channels, &frequency, NULL, &bitsPerSample, NULL);
-	
+	decoder->file_info(NULL, &channels, &frequency, NULL, &bitsPerSample, &seekTable);
+	NSLog(@"Seek table: %i", seekTable);
 	length = decoder->shn_get_song_length();
 	
 	decoder->go();
@@ -90,6 +90,7 @@
 {
 	if(decoder)
 	{
+		NSLog(@"Exiting decoder!");
 		decoder->exit();
 		delete decoder;
 		decoder	= NULL;
@@ -101,7 +102,7 @@
 
 - (BOOL)seekable
 {
-	return YES;
+	return seekTable ? YES : NO;
 }
 
 - (NSDictionary *)properties

TODO

@@ -1,4 +1,3 @@
 Bug fixes:
-  SHN resulting in high CPU usage: http://sbooth.org/forums/viewtopic.php?p=4711#4711
 
 Fix playlist/file loading so it never loads duplicates in a single action. Ex: If you load (an m3u containing a bunch of files) AND (the files themselves), only load them once! However, if you load the m3u, THEN load the group of files, they should appear twice! http://sbooth.org/forums/viewtopic.php?t=1434