bitstream.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:5k
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: bitstream.h,v 1.5 2001/06/04 23:02:24 wmay Exp $
- */
- #ifndef BITSTREAM_H
- #define BITSTREAM_H
- #ifdef __cplusplus
- extern "C" {
- #endif /* __cplusplus */
- #include "frame.h"
- #include "coder.h"
- #include "channels.h"
- /*
- * Raw bitstream constants
- */
- #define LEN_SE_ID 3
- #define LEN_TAG 4
- #define LEN_GLOB_GAIN 8
- #define LEN_COM_WIN 1
- #define LEN_ICS_RESERV 1
- #define LEN_WIN_SEQ 2
- #define LEN_WIN_SH 1
- #define LEN_MAX_SFBL 6
- #define LEN_MAX_SFBS 4
- #define LEN_CB 4
- #define LEN_SCL_PCM 8
- #define LEN_PRED_PRES 1
- #define LEN_PRED_RST 1
- #define LEN_PRED_RSTGRP 5
- #define LEN_PRED_ENAB 1
- #define LEN_MASK_PRES 2
- #define LEN_MASK 1
- #define LEN_PULSE_PRES 1
- #define LEN_TNS_PRES 1
- #define LEN_TNS_NFILTL 2
- #define LEN_TNS_NFILTS 1
- #define LEN_TNS_COEFF_RES 1
- #define LEN_TNS_LENGTHL 6
- #define LEN_TNS_LENGTHS 4
- #define LEN_TNS_ORDERL 5
- #define LEN_TNS_ORDERS 3
- #define LEN_TNS_DIRECTION 1
- #define LEN_TNS_COMPRESS 1
- #define LEN_GAIN_PRES 1
- #define LEN_NEC_NPULSE 2
- #define LEN_NEC_ST_SFB 6
- #define LEN_NEC_POFF 5
- #define LEN_NEC_PAMP 4
- #define NUM_NEC_LINES 4
- #define NEC_OFFSET_AMP 4
- #define LEN_NCC 3
- #define LEN_IS_CPE 1
- #define LEN_CC_LR 1
- #define LEN_CC_DOM 1
- #define LEN_CC_SGN 1
- #define LEN_CCH_GES 2
- #define LEN_CCH_CGP 1
- #define LEN_D_CNT 4
- #define LEN_D_ESC 12
- #define LEN_F_CNT 4
- #define LEN_F_ESC 8
- #define LEN_BYTE 8
- #define LEN_PAD_DATA 8
- #define LEN_PC_COMM 8
- #define ID_SCE 0
- #define ID_CPE 1
- #define ID_CCE 2
- #define ID_LFE 3
- #define ID_DSE 4
- #define ID_PCE 5
- #define ID_FIL 6
- #define ID_END 7
- /* MPEG ID's */
- #define MPEG2 1
- #define MPEG4 0
- /* AAC object types */
- #define MAIN 0
- #define LOW 1
- #define SSR 2
- #define LTP 3
- #define BYTE_NUMBIT 8 /* bits in byte (char) */
- #define LONG_NUMBIT 32 /* bits in unsigned long */
- #define bit2byte(a) (((a)+BYTE_NUMBIT-1)/BYTE_NUMBIT)
- typedef struct
- {
- unsigned char *data; /* data bits */
- long numBit; /* number of bits in buffer */
- long size; /* buffer size in bytes */
- long currentBit; /* current bit position in bit stream */
- long numByte; /* number of bytes read/written (only file) */
- } BitStream;
- int WriteBitstream(faacEncHandle hEncoder,
- CoderInfo *coderInfo,
- ChannelInfo *channelInfo,
- BitStream *bitStream,
- int numChannels);
- static int CountBitstream(faacEncHandle hEncoder,
- CoderInfo *coderInfo,
- ChannelInfo *channelInfo,
- BitStream *bitStream,
- int numChannels);
- static int WriteADTSHeader(faacEncHandle hEncoder,
- BitStream *bitStream,
- int writeFlag);
- static int WriteCPE(CoderInfo *coderInfoL,
- CoderInfo *coderInfoR,
- ChannelInfo *channelInfo,
- BitStream* bitStream,
- int objectType,
- int writeFlag);
- static int WriteSCE(CoderInfo *coderInfo,
- ChannelInfo *channelInfo,
- BitStream *bitStream,
- int objectType,
- int writeFlag);
- static int WriteLFE(CoderInfo *coderInfo,
- ChannelInfo *channelInfo,
- BitStream *bitStream,
- int objectType,
- int writeFlag);
- static int WriteICSInfo(CoderInfo *coderInfo,
- BitStream *bitStream,
- int objectType,
- int writeFlag);
- static int WriteICS(CoderInfo *coderInfo,
- BitStream *bitStream,
- int commonWindow,
- int objectType,
- int writeFlag);
- static int WriteLTPPredictorData(CoderInfo *coderInfo,
- BitStream *bitStream,
- int writeFlag);
- static int WritePredictorData(CoderInfo *coderInfo,
- BitStream *bitStream,
- int writeFlag);
- static int WritePulseData(CoderInfo *coderInfo,
- BitStream *bitStream,
- int writeFlag);
- static int WriteTNSData(CoderInfo *coderInfo,
- BitStream *bitStream,
- int writeFlag);
- static int WriteGainControlData(CoderInfo *coderInfo,
- BitStream *bitStream,
- int writeFlag);
- static int WriteSpectralData(CoderInfo *coderInfo,
- BitStream *bitStream,
- int writeFlag);
- static int WriteAACFillBits(BitStream* bitStream,
- int numBits,
- int writeFlag);
- static int FindGroupingBits(CoderInfo *coderInfo);
- BitStream *OpenBitStream(int size, unsigned char *buffer);
- int CloseBitStream(BitStream *bitStream);
- static long BufferNumBit(BitStream *bitStream);
- static int WriteByte(BitStream *bitStream,
- unsigned long data,
- int numBit);
- int PutBit(BitStream *bitStream,
- unsigned long data,
- int numBit);
- static int ByteAlign(BitStream* bitStream,
- int writeFlag,
- int offset);
- #ifdef __cplusplus
- }
- #endif /* __cplusplus */
- #endif /* BITSTREAM_H */