Fraunhofer AAC codec.

License boilerplate update to follow.

Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5

1 files changed, 62 insertions, 0 deletions

diff --git a/libSBRdec/src/huff_dec.cpp b/libSBRdec/src/huff_dec.cpp
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+/****************************************************************************
+
+                     (C) Copyright Fraunhofer IIS (2004)
+                               All Rights Reserved
+
+    Please be advised that this software and/or program delivery is
+    Confidential Information of Fraunhofer and subject to and covered by the
+
+    Fraunhofer IIS Software Evaluation Agreement
+    between Google Inc. and  Fraunhofer
+    effective and in full force since March 1, 2012.
+
+    You may use this software and/or program only under the terms and
+    conditions described in the above mentioned Fraunhofer IIS Software
+    Evaluation Agreement. Any other and/or further use requires a separate agreement.
+
+
+   This software and/or program is protected by copyright law and international
+   treaties. Any reproduction or distribution of this software and/or program,
+   or any portion of it, may result in severe civil and criminal penalties, and
+   will be prosecuted to the maximum extent possible under law.
+
+ $Id$
+
+*******************************************************************************/
+/*!
+  \file
+  \brief  Huffman Decoder $Revision: 36841 $
+*/
+
+#include "huff_dec.h"
+
+/***************************************************************************/
+/*!
+  \brief     Decodes one huffman code word
+
+  Reads bits from the bitstream until a valid codeword is found.
+  The table entries are interpreted either as index to the next entry
+  or - if negative - as the codeword.
+
+  \return    decoded value
+
+  \author
+
+****************************************************************************/
+int
+DecodeHuffmanCW (Huffman h,                /*!< pointer to huffman codebook table */
+                 HANDLE_FDK_BITSTREAM hBs) /*!< Handle to Bitbuffer */
+{
+  SCHAR index = 0;
+  int value, bit;
+
+  while (index >= 0) {
+    bit = FDKreadBits (hBs, 1);
+    index = h[index][bit];
+  }
+
+  value = index+64; /* Add offset */
+
+
+  return value;
+}