Update FLAC to 1.3.1

include/FLAC/format.h

 /* 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
  * are met:
  *
  * - Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *
  * - Redistributions in binary form must reproduce the above copyright
  * notice, this list of conditions and the following disclaimer in the
@@ skipping 488 matching lines @@
 
         FLAC__METADATA_TYPE_VORBIS_COMMENT = 4,
         /**< <A HREF="../format.html#metadata_block_vorbis_comment">VORBISCOMMENT</A> block (a.k.a. FLAC tags) */
 
         FLAC__METADATA_TYPE_CUESHEET = 5,
         /**< <A HREF="../format.html#metadata_block_cuesheet">CUESHEET</A> block */
 
         FLAC__METADATA_TYPE_PICTURE = 6,
         /**< <A HREF="../format.html#metadata_block_picture">PICTURE</A> block */
 
-        FLAC__METADATA_TYPE_UNDEFINED = 7
+        FLAC__METADATA_TYPE_UNDEFINED = 7,
         /**< marker to denote beginning of undefined type range; this number will increase as new metadata types are added */
 
+        FLAC__MAX_METADATA_TYPE = FLAC__MAX_METADATA_TYPE_CODE,
+        /**< No type will ever be greater than this. There is not enough room in the protocol block. */
 } FLAC__MetadataType;
 
 /** Maps a FLAC__MetadataType to a C string.
  *
  *  Using a FLAC__MetadataType as the index to this array will
  *  give the string equivalent.  The contents should not be modified.
  */
 extern FLAC_API const char * const FLAC__MetadataTypeString[];
 
 
@@ skipping 348 matching lines @@
 
 /** Tests that a sample rate is valid for FLAC.
  *
  * \param sample_rate  The sample rate to test for compliance.
  * \retval FLAC__bool
  *    \c true if the given sample rate conforms to the specification, else
  *    \c false.
  */
 FLAC_API FLAC__bool FLAC__format_sample_rate_is_valid(unsigned sample_rate);
 
+/** Tests that a blocksize at the given sample rate is valid for the FLAC
+ *  subset.
+ *
+ * \param blocksize    The blocksize to test for compliance.
+ * \param sample_rate  The sample rate is needed, since the valid subset
+ *                     blocksize depends on the sample rate.
+ * \retval FLAC__bool
+ *    \c true if the given blocksize conforms to the specification for the
+ *    subset at the given sample rate, else \c false.
+ */
+FLAC_API FLAC__bool FLAC__format_blocksize_is_subset(unsigned blocksize, unsigned sample_rate);
+
 /** Tests that a sample rate is valid for the FLAC subset.  The subset rules
  *  for valid sample rates are slightly more complex since the rate has to
  *  be expressible completely in the frame header.
  *
  * \param sample_rate  The sample rate to test for compliance.
  * \retval FLAC__bool
  *    \c true if the given sample rate conforms to the specification for the
  *    subset, else \c false.
  */
 FLAC_API FLAC__bool FLAC__format_sample_rate_is_subset(unsigned sample_rate);
@@ skipping 109 matching lines @@
  */
 FLAC_API FLAC__bool FLAC__format_picture_is_legal(const FLAC__StreamMetadata_Picture *picture, const char **violation);
 
 /* \} */
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif