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g72x.h File Reference

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Defines

#define AUDIO_ENCODING_ULAW   (1)
#define AUDIO_ENCODING_ALAW   (2)
#define AUDIO_ENCODING_LINEAR   (3)

Functions

void g72x_init_state (struct g72x_state *)
int g721_encoder (int sample, int in_coding, struct g72x_state *state_ptr)
int g721_decoder (int code, int out_coding, struct g72x_state *state_ptr)
int g723_24_encoder (int sample, int in_coding, struct g72x_state *state_ptr)
int g723_24_decoder (int code, int out_coding, struct g72x_state *state_ptr)
int g723_40_encoder (int sample, int in_coding, struct g72x_state *state_ptr)
int g723_40_decoder (int code, int out_coding, struct g72x_state *state_ptr)
int quantize (int d, int y, short *table, int size)
int reconstruct (int, int, int)
void update (int code_size, int y, int wi, int fi, int dq, int sr, int dqsez, struct g72x_state *state_ptr)
int tandem_adjust_alaw (int sr, int se, int y, int i, int sign, short *qtab)
int tandem_adjust_ulaw (int sr, int se, int y, int i, int sign, short *qtab)
unsigned char linear2alaw (int pcm_val)
int alaw2linear (unsigned char a_val)
unsigned char linear2ulaw (int pcm_val)
int ulaw2linear (unsigned char u_val)
int predictor_zero (struct g72x_state *state_ptr)
int predictor_pole (struct g72x_state *state_ptr)
int step_size (struct g72x_state *state_ptr)

Define Documentation

#define AUDIO_ENCODING_ALAW   (2)
 

#define AUDIO_ENCODING_LINEAR   (3)
 

#define AUDIO_ENCODING_ULAW   (1)
 

Function Documentation

int alaw2linear (  unsigned char  a_val  ) 
 

int g721_decoder (  int  code,
int  out_coding,
struct g72x_state *  state_ptr
) 
 

int g721_encoder (  int  sample,
int  in_coding,
struct g72x_state *  state_ptr
) 
 

int g723_24_decoder (  int  code,
int  out_coding,
struct g72x_state *  state_ptr
) 
 

int g723_24_encoder (  int  sample,
int  in_coding,
struct g72x_state *  state_ptr
) 
 

int g723_40_decoder (  int  code,
int  out_coding,
struct g72x_state *  state_ptr
) 
 

int g723_40_encoder (  int  sample,
int  in_coding,
struct g72x_state *  state_ptr
) 
 

void g72x_init_state (  struct g72x_state *   ) 
 

unsigned char linear2alaw (  int  pcm_val  ) 
 

unsigned char linear2ulaw (  int  pcm_val  ) 
 

int predictor_pole (  struct g72x_state *  state_ptr  ) 
 

int predictor_zero (  struct g72x_state *  state_ptr  ) 
 

int quantize (  int  d,
int  y,
short *  table,
int  size
) 
 

int reconstruct (  int  ,
int  ,
int 
) 
 

int step_size (  struct g72x_state *  state_ptr  ) 
 

int tandem_adjust_alaw (  int  sr,
int  se,
int  y,
int  i,
int  sign,
short *  qtab
) 
 

int tandem_adjust_ulaw (  int  sr,
int  se,
int  y,
int  i,
int  sign,
short *  qtab
) 
 

int ulaw2linear (  unsigned char  u_val  ) 
 

void update (  int  code_size,
int  y,
int  wi,
int  fi,
int  dq,
int  sr,
int  dqsez,
struct g72x_state *  state_ptr
) 
 

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