g711.h File Reference

A-law and u-law conversion routines. More...

#include "mpf.h"

Go to the source code of this file.

Macros
#define	ULAW_BIAS   0x84 /* Bias for linear code. */
#define	ALAW_AMI_MASK   0x55

Functions
apr_byte_t	alaw_to_ulaw (apr_byte_t alaw)
	Transcode from A-law to u-law, using the procedure defined in G.711. More...
apr_byte_t	ulaw_to_alaw (apr_byte_t ulaw)
	Transcode from u-law to A-law, using the procedure defined in G.711. More...

Detailed Description

A-law and u-law conversion routines.

Function Documentation

apr_byte_t alaw_to_ulaw

(

apr_byte_t

alaw

)

Transcode from A-law to u-law, using the procedure defined in G.711.

Parameters

alaw	The A-law sample to transcode.

Returns

The best matching u-law value.

apr_byte_t ulaw_to_alaw

(

apr_byte_t

ulaw

)

Transcode from u-law to A-law, using the procedure defined in G.711.

Parameters

alaw	The u-law sample to transcode.

Returns

The best matching A-law value.