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Diffstat (limited to 'libAACenc/src/bit_cnt.h')
-rw-r--r-- | libAACenc/src/bit_cnt.h | 124 |
1 files changed, 124 insertions, 0 deletions
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 |