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bdc6b78103
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@2433 d0543943-73ff-0310-b7d9-9358b9ac24b2
61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/*
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* This source code is a product of Sun Microsystems, Inc. and is provided
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* for unrestricted use. Users may copy or modify this source code without
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* charge.
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*
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* SUN SOURCE CODE IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING
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* THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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*
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* Sun source code is provided with no support and without any obligation on
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* the part of Sun Microsystems, Inc. to assist in its use, correction,
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* modification or enhancement.
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*
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* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
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* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY THIS SOFTWARE
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* OR ANY PART THEREOF.
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*
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* In no event will Sun Microsystems, Inc. be liable for any lost revenue
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* or profits or other special, indirect and consequential damages, even if
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* Sun has been advised of the possibility of such damages.
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*
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* Sun Microsystems, Inc.
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* 2550 Garcia Avenue
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* Mountain View, California 94043
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*/
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/*
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* December 30, 1994:
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* Functions linear2alaw, linear2ulaw have been updated to correctly
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* convert unquantized 16 bit values.
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* Tables for direct u- to A-law and A- to u-law conversions have been
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* corrected.
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* Borge Lindberg, Center for PersonKommunikation, Aalborg University.
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* bli@cpk.auc.dk
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*
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*/
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/*
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* Downloaded from comp.speech site in Cambridge.
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*
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*/
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#ifndef _G711_H_
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#define _G711_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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unsigned char linear2alaw(short pcm_val);
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short alaw2linear(unsigned char a_val);
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unsigned char linear2ulaw(short pcm_val);
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short ulaw2linear(unsigned char u_val);
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unsigned char alaw2ulaw(unsigned char aval);
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unsigned char ulaw2alaw(unsigned char uval);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _G711_H_ */
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