From 9bf37cc9712506b2483650c82d3c41152337ef7e Mon Sep 17 00:00:00 2001
From: Dave Burke <daveburke@google.com>
Date: Tue, 17 Apr 2012 09:51:45 -0700
Subject: Fraunhofer AAC codec.

License boilerplate update to follow.

Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5
---
 libAACenc/src/bit_cnt.h | 124 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 libAACenc/src/bit_cnt.h

(limited to 'libAACenc/src/bit_cnt.h')

diff --git a/libAACenc/src/bit_cnt.h b/libAACenc/src/bit_cnt.h
new file mode 100644
index 0000000..6baf7df
--- /dev/null
+++ b/libAACenc/src/bit_cnt.h
@@ -0,0 +1,124 @@
+/******************************** MPEG Audio Encoder **************************
+
+                     (C) Copyright Fraunhofer IIS (1999)
+                               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.
+
+   $Id$
+   Initial author:       M.Werner
+   contents/description: Huffman Bitcounter & coder
+
+******************************************************************************/
+#ifndef __BITCOUNT_H
+#define __BITCOUNT_H
+
+
+#include "common_fix.h"
+#include "FDK_bitstream.h"
+#include "aacEnc_rom.h"
+
+#define INVALID_BITCOUNT (FDK_INT_MAX/4)
+
+/*
+  code book number table
+*/
+
+enum codeBookNo{
+ CODE_BOOK_ZERO_NO=               0,
+ CODE_BOOK_1_NO=                  1,
+ CODE_BOOK_2_NO=                  2,
+ CODE_BOOK_3_NO=                  3,
+ CODE_BOOK_4_NO=                  4,
+ CODE_BOOK_5_NO=                  5,
+ CODE_BOOK_6_NO=                  6,
+ CODE_BOOK_7_NO=                  7,
+ CODE_BOOK_8_NO=                  8,
+ CODE_BOOK_9_NO=                  9,
+ CODE_BOOK_10_NO=                10,
+ CODE_BOOK_ESC_NO=               11,
+ CODE_BOOK_RES_NO=               12,
+ CODE_BOOK_PNS_NO=               13,
+ CODE_BOOK_IS_OUT_OF_PHASE_NO=   14,
+ CODE_BOOK_IS_IN_PHASE_NO=       15
+
+};
+
+/*
+  code book index table
+*/
+
+enum codeBookNdx{
+ CODE_BOOK_ZERO_NDX,
+ CODE_BOOK_1_NDX,
+ CODE_BOOK_2_NDX,
+ CODE_BOOK_3_NDX,
+ CODE_BOOK_4_NDX,
+ CODE_BOOK_5_NDX,
+ CODE_BOOK_6_NDX,
+ CODE_BOOK_7_NDX,
+ CODE_BOOK_8_NDX,
+ CODE_BOOK_9_NDX,
+ CODE_BOOK_10_NDX,
+ CODE_BOOK_ESC_NDX,
+ CODE_BOOK_RES_NDX,
+ CODE_BOOK_PNS_NDX,
+ CODE_BOOK_IS_OUT_OF_PHASE_NDX,
+ CODE_BOOK_IS_IN_PHASE_NDX,
+ NUMBER_OF_CODE_BOOKS
+};
+
+/*
+  code book lav table
+*/
+
+enum codeBookLav{
+ CODE_BOOK_ZERO_LAV=0,
+ CODE_BOOK_1_LAV=1,
+ CODE_BOOK_2_LAV=1,
+ CODE_BOOK_3_LAV=2,
+ CODE_BOOK_4_LAV=2,
+ CODE_BOOK_5_LAV=4,
+ CODE_BOOK_6_LAV=4,
+ CODE_BOOK_7_LAV=7,
+ CODE_BOOK_8_LAV=7,
+ CODE_BOOK_9_LAV=12,
+ CODE_BOOK_10_LAV=12,
+ CODE_BOOK_ESC_LAV=16,
+ CODE_BOOK_SCF_LAV=60,
+ CODE_BOOK_PNS_LAV=60
+ };
+
+INT    FDKaacEnc_bitCount(const SHORT *aQuantSpectrum,
+                          const INT   noOfSpecLines,
+                          INT         maxVal,
+                          INT        *bitCountLut);
+
+INT    FDKaacEnc_countValues(SHORT *values, INT width, INT codeBook);
+
+INT    FDKaacEnc_codeValues(SHORT *values, INT width, INT codeBook, HANDLE_FDK_BITSTREAM hBitstream);
+
+INT    FDKaacEnc_codeScalefactorDelta(INT scalefactor, HANDLE_FDK_BITSTREAM hBitstream);
+
+inline INT FDKaacEnc_bitCountScalefactorDelta(const INT delta)
+{
+  FDK_ASSERT( (0 <= (delta+CODE_BOOK_SCF_LAV)) &&  ((delta+CODE_BOOK_SCF_LAV)<(int)(sizeof(FDKaacEnc_huff_ltabscf)/sizeof((FDKaacEnc_huff_ltabscf[0])))) );
+  return((INT)FDKaacEnc_huff_ltabscf[delta+CODE_BOOK_SCF_LAV]);
+}
+
+#endif
-- 
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