Update FLAC to 1.3.1

src/libFLAC/include/protected/stream_decoder.h

Index: src/libFLAC/include/protected/stream_decoder.h
diff --git a/src/libFLAC/include/protected/stream_decoder.h b/src/libFLAC/include/protected/stream_decoder.h
index 9108ca78f225c062965a599f661d8b0199cc9e9f..7be95afdafea1b9618cae4a409cb6d51996327ae 100644
--- a/src/libFLAC/include/protected/stream_decoder.h
+++ b/src/libFLAC/include/protected/stream_decoder.h
@@ -1,5 +1,6 @@
 /* libFLAC - Free Lossless Audio Codec library
- * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007  Josh Coalson
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2014  Xiph.Org Foundation
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -39,6 +40,7 @@
 
 typedef struct FLAC__StreamDecoderProtected {
 	FLAC__StreamDecoderState state;
+	FLAC__StreamDecoderInitStatus initstate;
 	unsigned channels;
 	FLAC__ChannelAssignment channel_assignment;
 	unsigned bits_per_sample;