Fixed up Vorbis Decoder and modified MAD to use new source system.

Plugins/MAD/MADDecoder.h

@@ -29,7 +29,7 @@
 	int _outputAvailable;
 	int _fileSize;
 	
-	FILE *_inFd;
+	id<CogSource> _source;
 	
 	BOOL _seekSkip;
 

Plugins/MAD/MADDecoder.m

@@ -156,9 +156,9 @@ int parse_headers(struct xing *xing, struct lame *lame, struct mad_bitptr ptr, u
 	
 	frames = 0;
 	
-	fseek(_inFd, 0, SEEK_END);
+	[_source seek:0 whence:SEEK_END];
-	_fileSize = ftell(_inFd);
+	_fileSize = [_source tell];
-	fseek(_inFd, 0, SEEK_SET);
+	[_source seek:0 whence:SEEK_SET];
 	
 	BOOL done = NO;
 	
@@ -167,7 +167,7 @@ int parse_headers(struct xing *xing, struct lame *lame, struct mad_bitptr ptr, u
 		remainder = stream.bufend - stream.next_frame;
 				
 		memcpy (buffer, stream.this_frame, remainder);
-		len = fread(buffer + remainder, 1, BUFFER_SIZE - remainder, _inFd);
+		len = [_source read:buffer + remainder amount:BUFFER_SIZE - remainder];
 		
 		if (len <= 0)
 			break;
@@ -271,24 +271,24 @@ int parse_headers(struct xing *xing, struct lame *lame, struct mad_bitptr ptr, u
 
 	bitrate /= 1000;
 
-	fseek(_inFd, 0, SEEK_SET);
+	[_source seek:0 whence:SEEK_SET];
 	
 	return frames != 0;	
 }
 
 
-- (BOOL)open:(NSURL *)url
+- (BOOL)open:(id<CogSource>)source
 {	
+	[source retain];
+	[_source release];
+	_source = source;
+	
 	/* First the structures used by libmad must be initialized. */
 	mad_stream_init(&_stream);
 	mad_frame_init(&_frame);
 	mad_synth_init(&_synth);
 	mad_timer_reset(&_timer);
 		
-	_inFd = fopen([[url path] UTF8String], "r");
-	if (!_inFd)
-		return NO;
-	
 	bitsPerSample = 16;
 	
 	return [self scanFileFast:YES useXing:YES];
@@ -442,7 +442,7 @@ static inline signed int scale (mad_fixed_t sample)
 				remainder = 0;
 			}
 
-			len = fread(_inputBuffer+remainder, 1, INPUT_BUFFER_SIZE-remainder, _inFd);
+			len = [_source read:_inputBuffer+remainder amount:INPUT_BUFFER_SIZE-remainder];
 			if (len <= 0)
 			{
 				eof = YES;
@@ -527,7 +527,7 @@ static inline signed int scale (mad_fixed_t sample)
 
 - (void)close
 {
-	fclose(_inFd);
+	[_source close];
 	
 	mad_synth_finish(&_synth);
 	mad_frame_finish(&_frame);
@@ -546,7 +546,7 @@ static inline signed int scale (mad_fixed_t sample)
 	mad_timer_set(&_timer, seconds, 0, 0);
 	new_position = ((double) seconds / (double) total_seconds) * _fileSize;
 
-	fseek(_inFd, new_position, SEEK_SET);
+	[_source seek:new_position whence:SEEK_SET];
 	mad_stream_sync(&_stream);
 	_stream.error = MAD_ERROR_BUFLEN;
 	_stream.sync = 0;
@@ -572,6 +572,12 @@ static inline signed int scale (mad_fixed_t sample)
 		nil];
 }
 
+- (BOOL)seekable
+{
+	return [_source seekable];
+}
+
+
 + (NSArray *)fileTypes
 {
 	return [NSArray arrayWithObjects:@"mp3",nil];

Plugins/MAD/MADPropertiesReader.m

@@ -11,13 +11,13 @@
 
 @implementation MADPropertiesReader
 
-- (NSDictionary *)propertiesForURL:(NSURL *)url
++ (NSDictionary *)propertiesForSource:(id<CogSource>)source
 {
 	NSDictionary *properties;
 	MADDecoder *decoder;
 	
 	decoder = [[MADDecoder alloc] init];
-	if (![decoder open:url])
+	if (![decoder open:source])
 	{
 		return nil;
 	}

Plugins/Vorbis/VorbisDecoder.h

@@ -25,6 +25,7 @@
 
 	OggVorbis_File vorbisRef;
 	int currentSection;
+	int lastSection;
 	
 	BOOL seekable;
 	int bitsPerSample;

Plugins/Vorbis/VorbisDecoder.m

@@ -81,26 +81,26 @@ long sourceTell(void *datasource)
     int total = 0;
 	
     do {
+		lastSection = currentSection;
 		numread = ov_read(&vorbisRef, &((char *)buf)[total], size - total, 0, bitsPerSample/8, 1, &currentSection);
 		if (numread > 0) {
 			total += numread;
-		
 		}
+	
+		if (currentSection != lastSection) {
+			vorbis_info *vi;
+			vi = ov_info(&vorbisRef, -1);
+			
+			bitsPerSample = vi->channels * 8;
+			bitrate = (vi->bitrate_nominal/1000.0);
+			channels = vi->channels;
+			frequency = vi->rate;
+			
+			NSLog(@"Format changed...");
+		}
+		
     } while (total != size && numread != 0);
 
-	if (numread == 0) {
-		char **ptr=ov_comment(&vorbisRef,-1)->user_comments;
-	    vorbis_info *vi=ov_info(&vorbisRef,-1);
-		while(*ptr){
-		  NSLog(@"%s\n",*ptr);
-		  ++ptr;
-		}	
-		NSLog(@"Bitstream is %d channel, %ldHz\n",vi->channels,vi->rate);
-		NSLog(@"Decoded length: %ld samples\n",
-				(long)ov_pcm_total(&vorbisRef,-1));
-		NSLog(@"Encoded by: %s\n\n", ov_comment(&vorbisRef,-1)->vendor);
-		NSLog(@"Spewed out crap...");
-	}
     return total;
 }