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83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
/*
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** Copyright 2003-2010, VisualOn, Inc.
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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/*******************************************************************************
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File: dyn_bits.h
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Content: Noiseless coder module structure and functions
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*******************************************************************************/
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#ifndef __DYN_BITS_H
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#define __DYN_BITS_H
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#include "psy_const.h"
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#include "tns.h"
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#include "bit_cnt.h"
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#define MAX_SECTIONS MAX_GROUPED_SFB
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#define SECT_ESC_VAL_LONG 31
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#define SECT_ESC_VAL_SHORT 7
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#define CODE_BOOK_BITS 4
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#define SECT_BITS_LONG 5
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#define SECT_BITS_SHORT 3
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typedef struct
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{
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Word16 codeBook;
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Word16 sfbStart;
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Word16 sfbCnt;
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Word16 sectionBits;
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}
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SECTION_INFO;
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typedef struct
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{
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Word16 blockType;
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Word16 noOfGroups;
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Word16 sfbCnt;
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Word16 maxSfbPerGroup;
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Word16 sfbPerGroup;
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Word16 noOfSections;
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SECTION_INFO sectionInfo[MAX_SECTIONS];
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Word16 sideInfoBits; /* sectioning bits */
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Word16 huffmanBits; /* huffman coded bits */
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Word16 scalefacBits; /* scalefac coded bits */
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Word16 firstScf; /* first scf to be coded */
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Word16 bitLookUp[MAX_SFB_LONG*(CODE_BOOK_ESC_NDX+1)];
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Word16 mergeGainLookUp[MAX_SFB_LONG];
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}
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SECTION_DATA; /* Word16 size: 10 + 60(MAX_SECTIONS)*4(SECTION_INFO) + 51(MAX_SFB_LONG)*12(CODE_BOOK_ESC_NDX+1) + 51(MAX_SFB_LONG) = 913 */
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Word16 BCInit(void);
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Word16 dynBitCount(const Word16 *quantSpectrum,
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const UWord16 *maxValueInSfb,
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const Word16 *scalefac,
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const Word16 blockType,
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const Word16 sfbCnt,
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const Word16 maxSfbPerGroup,
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const Word16 sfbPerGroup,
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const Word16 *sfbOffset,
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SECTION_DATA *sectionData);
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#endif
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