| /* |
| ** 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 |