The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/mulaw.h

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    1 /*      $NetBSD: mulaw.h,v 1.16 2003/07/08 09:07:15 itojun Exp $        */
    2 
    3 /*-
    4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by John T. Kohl.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  * 3. All advertising materials mentioning features or use of this software
   19  *    must display the following acknowledgement:
   20  *        This product includes software developed by the NetBSD
   21  *        Foundation, Inc. and its contributors.
   22  * 4. Neither the name of The NetBSD Foundation nor the names of its
   23  *    contributors may be used to endorse or promote products derived
   24  *    from this software without specific prior written permission.
   25  *
   26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   36  * POSSIBILITY OF SUCH DAMAGE.
   37  */
   38 
   39 /* Convert 8-bit mu-law to 16 bit unsigned linear. */
   40 extern void mulaw_to_ulinear16_le(void *, u_char *, int);
   41 extern void mulaw_to_ulinear16_be(void *, u_char *, int);
   42 /* Convert 8-bit mu-law from/to 16 bit signed linear. */
   43 extern void mulaw_to_slinear16_le(void *, u_char *, int);
   44 extern void mulaw_to_slinear16_be(void *, u_char *, int);
   45 extern void slinear16_to_mulaw_le(void *, u_char *, int);
   46 /* Convert 8-bit mu-law to/from 8 bit unsigned linear. */
   47 extern void mulaw_to_ulinear8(void *, u_char *, int);
   48 extern void ulinear8_to_mulaw(void *, u_char *, int);
   49 /* Convert 8-bit mu-law to/from 8 bit signed linear. */
   50 extern void mulaw_to_slinear8(void *, u_char *, int);
   51 extern void slinear8_to_mulaw(void *, u_char *, int);
   52 /* Convert 8-bit A-law to 16 bit unsigned linear. */
   53 extern void alaw_to_ulinear16_le(void *, u_char *, int);
   54 extern void alaw_to_ulinear16_be(void *, u_char *, int);
   55 /* Convert 8-bit A-law to/from 16 bit signed linear. */
   56 extern void alaw_to_slinear16_le(void *, u_char *, int);
   57 extern void alaw_to_slinear16_be(void *, u_char *, int);
   58 extern void slinear16_to_alaw_le(void *, u_char *, int);
   59 extern void slinear16_to_alaw_be(void *, u_char *, int);
   60 /* Convert 8-bit A-law to/from 8 bit unsigned linear. */
   61 extern void alaw_to_ulinear8(void *, u_char *, int);
   62 extern void ulinear8_to_alaw(void *, u_char *, int);
   63 /* Convert 8-bit A-law to/from 8 bit signed linear. */
   64 extern void alaw_to_slinear8(void *, u_char *, int);
   65 extern void slinear8_to_alaw(void *, u_char *, int);

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