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