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+/* -----------------------------------------------------------------------------
+Software License for The Fraunhofer FDK AAC Codec Library for Android
+
+© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
+Forschung e.V. All rights reserved.
+
+ 1. INTRODUCTION
+The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
+that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
+scheme for digital audio. This FDK AAC Codec software is intended to be used on
+a wide variety of Android devices.
+
+AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
+general perceptual audio codecs. AAC-ELD is considered the best-performing
+full-bandwidth communications codec by independent studies and is widely
+deployed. AAC has been standardized by ISO and IEC as part of the MPEG
+specifications.
+
+Patent licenses for necessary patent claims for the FDK AAC Codec (including
+those of Fraunhofer) may be obtained through Via Licensing
+(www.vialicensing.com) or through the respective patent owners individually for
+the purpose of encoding or decoding bit streams in products that are compliant
+with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
+Android devices already license these patent claims through Via Licensing or
+directly from the patent owners, and therefore FDK AAC Codec software may
+already be covered under those patent licenses when it is used for those
+licensed purposes only.
+
+Commercially-licensed AAC software libraries, including floating-point versions
+with enhanced sound quality, are also available from Fraunhofer. Users are
+encouraged to check the Fraunhofer website for additional applications
+information and documentation.
+
+2. COPYRIGHT LICENSE
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted without payment of copyright license fees provided that you
+satisfy the following conditions:
+
+You must retain the complete text of this software license in redistributions of
+the FDK AAC Codec or your modifications thereto in source code form.
+
+You must retain the complete text of this software license in the documentation
+and/or other materials provided with redistributions of the FDK AAC Codec or
+your modifications thereto in binary form. You must make available free of
+charge copies of the complete source code of the FDK AAC Codec and your
+modifications thereto to recipients of copies in binary form.
+
+The name of Fraunhofer may not be used to endorse or promote products derived
+from this library without prior written permission.
+
+You may not charge copyright license fees for anyone to use, copy or distribute
+the FDK AAC Codec software or your modifications thereto.
+
+Your modified versions of the FDK AAC Codec must carry prominent notices stating
+that you changed the software and the date of any change. For modified versions
+of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
+must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
+AAC Codec Library for Android."
+
+3. NO PATENT LICENSE
+
+NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
+limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
+Fraunhofer provides no warranty of patent non-infringement with respect to this
+software.
+
+You may use this FDK AAC Codec software or modifications thereto only for
+purposes that are authorized by appropriate patent licenses.
+
+4. DISCLAIMER
+
+This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
+holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
+including but not limited to the implied warranties of merchantability and
+fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
+or consequential damages, including but not limited to procurement of substitute
+goods or services; loss of use, data, or profits, or business interruption,
+however caused and on any theory of liability, whether in contract, strict
+liability, or tort (including negligence), arising in any way out of the use of
+this software, even if advised of the possibility of such damage.
+
+5. CONTACT INFORMATION
+
+Fraunhofer Institute for Integrated Circuits IIS
+Attention: Audio and Multimedia Departments - FDK AAC LL
+Am Wolfsmantel 33
+91058 Erlangen, Germany
+
+www.iis.fraunhofer.de/amm
+amm-info@iis.fraunhofer.de
+----------------------------------------------------------------------------- */
+
+/**************************** AAC encoder library ******************************
+
+ Author(s): M.Werner
+
+ Description: Huffman Bitcounter & coder
+
+*******************************************************************************/
+
+#ifndef BIT_CNT_H
+#define BIT_CNT_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