huffman.h
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:2k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*
- * FAAC - Freeware Advanced Audio Coder
- * Copyright (C) 2001 Menno Bakker
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * $Id: huffman.h,v 1.5 2001/06/04 23:02:24 wmay Exp $
- */
- #ifndef HUFFMAN_H
- #define HUFFMAN_H
- #ifdef __cplusplus
- extern "C" {
- #endif /* __cplusplus */
- #include "bitstream.h"
- #include "coder.h"
- /* Huffman tables */
- #define MAXINDEX 289
- #define NUMINTAB 2
- #define FIRSTINTAB 0
- #define LASTINTAB 1
- #define INTENSITY_HCB 15
- #define INTENSITY_HCB2 14
- #define ABS(A) ((A) < 0 ? (-A) : (A))
- #include "frame.h"
- void HuffmanInit(CoderInfo *coderInfo, unsigned int numChannels);
- void HuffmanEnd(CoderInfo *coderInfo, unsigned int numChannels);
- int BitSearch(CoderInfo *coderInfo,
- int *quant);
- int NoiselessBitCount(CoderInfo *coderInfo,
- int *quant,
- int hop,
- int min_book_choice[112][3]);
- static int CalculateEscSequence(int input, int *len_esc_sequence);
- int CalcBits(CoderInfo *coderInfo,
- int book,
- int *quant,
- int offset,
- int length);
- int OutputBits(CoderInfo *coderInfo,
- int book,
- int *quant,
- int offset,
- int length);
- int SortBookNumbers(CoderInfo *coderInfo,
- BitStream *bitStream,
- int writeFlag);
- int WriteScalefactors(CoderInfo *coderInfo,
- BitStream *bitStream,
- int writeFlag);
- #ifdef __cplusplus
- }
- #endif /* __cplusplus */
- #endif /* HUFFMAN_H */