www.pudn.com > av3dec_20050318.zip > av3dec.h

   /* 
*********************************************************************** 
* COPYRIGHT AND WARRANTY INFORMATION 
* 
* Copyright 2004,  Audio Video Coding Standard, Part III 
* 
* This software module was originally developed by 
* edited by 
* 
* DISCLAIMER OF WARRANTY 
* 
* These software programs are available to the users without any 
* license fee or royalty on an "as is" basis. The AVS disclaims 
* any and all warranties, whether express, implied, or statutory, 
* including any implied warranties of merchantability or of fitness 
* for a particular purpose. In no event shall the contributors or  
* the AVS be liable for any incidental, punitive, or consequential 
* damages of any kind whatsoever arising from the use of this program. 
* 
* This disclaimer of warranty extends to the user of this program 
* and user's customers, employees, agents, transferees, successors, 
* and assigns. 
* 
* The AVS does not represent or warrant that the program furnished 
* hereunder are free of infringement of any third-party patents. 
* Commercial implementations of AVS, including shareware, may be 
* subject to royalty fees to patent holders. Information regarding 
* the AVS patent policy is available from the AVS Web site at 
* http://www.avs.org.cn 
* 
* THIS IS NOT A GRANT OF PATENT RIGHTS - SEE THE AVS PATENT POLICY. 
************************************************************************ 
*/ 
#ifndef AV3DEC_H 
#define AV3DEC_H 
 
#include  
#include  
#include "common.h" 
 
 
#ifdef __cplusplus 
extern "C" { 
#endif 
 
///////////////////////////////////////////// 
///      macro definition                  // 
///////////////////////////////////////////// 
 
#define AV3_AUDIO_VERSION "1.0 " 
 
/* object types for av3 */ 
#define AV3_MAIN_LEVEL  1 
#define AV3_BASIC_LEVEL 2 
 
/* av3 header type definition*/ 
#define AV3_HEAD_DEFAULT 0 
 
/* library output formats */ 
#define AV3_PCM_16BIT  1 
#define AV3_PCM_24BIT  2 
#define AV3_PCM_32BIT  3 
#define AV3_PCM_FLOAT  4 
 
/* at least AV3DEC_MIN_IBUFSIZE bytes per decoded channel should be available */ 
#define AV3DEC_MIN_IBUFSIZE 768   
 
#define MAX_CHANNELS        8 
 
#define ONLY_LONG_SEQUENCE   0x0 
#define LONG_START_SEQUENCE  0x1 
#define EIGHT_SHORT_SEQUENCE 0x2 
#define LONG_STOP_SEQUENCE   0x3 
 
typedef struct AV3DecConfiguration 
{ 
    unsigned char av3ObjectType; 
    unsigned char header_type; 
    unsigned long defSampleRate; //default sample rate 
    unsigned char outputFormat;   
	unsigned char pcmFormat;     /*the output pcm data format*/ 
	int dec_target;    //decoding bitrate 
} AV3DecCfg, *AV3DecCfgPtr; 
 
typedef struct 
{ 
    uint8_t object_type; 
 
    uint16_t frameLength; 
 
    uint32_t frame; 
  
    /* output data buffer */ 
    void *sample_buffer; 
 
    /* Configuration data */ 
    AV3DecCfg config; 
 
} AV3DecFrameInfo, *AV3DecFrameInfoPtr; 
 
/* av3 file buffer */ 
typedef struct { 
    long bytes_into_buffer; 
    long bytes_consumed; 
    long file_offset; 
    unsigned char *buffer; 
    int at_eof; 
    FILE *infile; 
} av3_buffer; 
 
#ifdef __cplusplus 
} 
#endif 
#endif