/* $OpenBSD: auconv.h,v 1.7 2007/10/23 19:54:36 jakemsr Exp $ */ /* $NetBSD: auconv.h,v 1.5 1999/11/01 18:12:19 augustss Exp $ */ /*- * Copyright (c) 1997 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Lennart Augustsson. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* Convert between signed and unsigned. */ extern void change_sign8(void *, u_char *, int); extern void change_sign16_le(void *, u_char *, int); extern void change_sign16_be(void *, u_char *, int); /* Convert between little and big endian. */ extern void swap_bytes(void *, u_char *, int); extern void swap_bytes_change_sign16_le(void *, u_char *, int); extern void swap_bytes_change_sign16_be(void *, u_char *, int); extern void change_sign16_swap_bytes_le(void *, u_char *, int); extern void change_sign16_swap_bytes_be(void *, u_char *, int); /* Byte expansion/contraction */ extern void linear8_to_linear16_le(void *, u_char *, int); extern void linear8_to_linear16_be(void *, u_char *, int); extern void linear16_to_linear8_le(void *, u_char *, int); extern void linear16_to_linear8_be(void *, u_char *, int); /* Byte expansion/contraction with sign change */ extern void ulinear8_to_linear16_le(void *, u_char *, int); extern void ulinear8_to_linear16_be(void *, u_char *, int); extern void linear16_to_ulinear8_le(void *, u_char *, int); extern void linear16_to_ulinear8_be(void *, u_char *, int); /* same as above, plus converting mono to stereo */ extern void noswap_bytes_mts(void *, u_char *, int); extern void swap_bytes_mts(void *, u_char *, int); extern void linear8_to_linear16_le_mts(void *, u_char *, int); extern void linear8_to_linear16_be_mts(void *, u_char *, int); extern void ulinear8_to_linear16_le_mts(void *, u_char *, int); extern void ulinear8_to_linear16_be_mts(void *, u_char *, int); extern void change_sign16_le_mts(void *, u_char *, int); extern void change_sign16_be_mts(void *, u_char *, int); extern void change_sign16_swap_bytes_le_mts(void *, u_char *, int); extern void change_sign16_swap_bytes_be_mts(void *, u_char *, int); void swap_bytes_change_sign16_le_mts(void *, u_char *, int); void swap_bytes_change_sign16_be_mts(void *, u_char *, int); /* 16-bit signed linear stereo to mono. drops every other sample */ void linear16_decimator(void *, u_char *, int); void linear16_to_linear8_le_stm(void *, u_char *, int); void linear16_to_linear8_be_stm(void *, u_char *, int); void linear16_to_ulinear8_le_stm(void *, u_char *, int); void linear16_to_ulinear8_be_stm(void *, u_char *, int); void change_sign16_le_stm(void *, u_char *, int); void change_sign16_be_stm(void *, u_char *, int); void swap_bytes_stm(void *, u_char *, int); void swap_bytes_change_sign16_be_stm(void *, u_char *, int); void change_sign16_swap_bytes_le_stm(void *, u_char *, int); /* backwards compat for now */ #if BYTE_ORDER == LITTLE_ENDIAN #define change_sign16 change_sign16_le #define change_sign16_swap_bytes swap_bytes_change_sign16_le #define swap_bytes_change_sign16 swap_bytes_change_sign16_le #define linear8_to_linear16 linear8_to_linear16_le #define ulinear8_to_linear16 ulinear8_to_linear16_le #define linear8_to_linear16_mts linear8_to_linear16_le_mts #define ulinear8_to_linear16_mts ulinear8_to_linear16_le_mts #define change_sign16_mts change_sign16_le_mts #define change_sign16_swap_bytes_mts change_sign16_swap_bytes_le_mts #else #define change_sign16 change_sign16_be #define change_sign16_swap_bytes swap_bytes_change_sign16_be #define swap_bytes_change_sign16 swap_bytes_change_sign16_be #define linear8_to_linear16 linear8_to_linear16_be #define ulinear8_to_linear16 ulinear8_to_linear16_be #define linear8_to_linear16_mts linear8_to_linear16_be_mts #define ulinear8_to_linear16_mts ulinear8_to_linear16_be_mts #define change_sign16_mts change_sign16_be_mts #define change_sign16_swap_bytes_mts change_sign16_swap_bytes_be_mts #endif