From a0e2c58919f8b93c6b05c630a7b40fbb7e1a129d Mon Sep 17 00:00:00 2001 From: Mark Spencer Date: Sun, 9 Dec 2001 00:41:43 +0000 Subject: Version 0.1.10 from FTP git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@392 65c4cc65-6c06-0410-ace0-fbb531ad65f3 --- include/asterisk/alaw.h | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100755 include/asterisk/alaw.h (limited to 'include/asterisk/alaw.h') diff --git a/include/asterisk/alaw.h b/include/asterisk/alaw.h new file mode 100755 index 000000000..6861955bb --- /dev/null +++ b/include/asterisk/alaw.h @@ -0,0 +1,34 @@ +/* + * Asterisk -- A telephony toolkit for Linux. + * + * A-Law to Signed linear conversion + * + * Copyright (C) 1999, Mark Spencer + * + * Mark Spencer + * + * This program is free software, distributed under the terms of + * the GNU General Public License + */ + +#ifndef _ASTERISK_ALAW_H +#define _ASTERISK_ALAW_H + +//! Init the ulaw conversion stuff +/*! + * To init the ulaw to slinear conversion stuff, this needs to be run. + */ +extern void ast_alaw_init(void); + +//! converts signed linear to mulaw +/*! + */ +extern unsigned char __ast_lin2a[8192]; + +//! help +extern short __ast_alaw[256]; + +#define AST_LIN2A(a) (__ast_lin2a[((unsigned short)(a)) >> 3]) +#define AST_ALAW(a) (__ast_alaw[(a)]) + +#endif -- cgit v1.2.3