1 /* $NetBSD: sun.c,v 1.7 2011/08/28 01:17:47 joerg Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Matthew R. Green 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 /* 30 * XXX this is slightly icky in places... 31 */ 32 #include <sys/cdefs.h> 33 34 #ifndef lint 35 __RCSID("$NetBSD: sun.c,v 1.7 2011/08/28 01:17:47 joerg Exp $"); 36 #endif 37 38 39 #include <sys/types.h> 40 #include <sys/audioio.h> 41 #include <sys/ioctl.h> 42 #include <sys/time.h> 43 44 #include <ctype.h> 45 #include <err.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <string.h> 49 50 #include "libaudio.h" 51 52 /* 53 * SunOS/NeXT .au format helpers 54 */ 55 static const struct { 56 int file_encoding; 57 int encoding; 58 int precision; 59 } file2sw_encodings[] = { 60 { AUDIO_FILE_ENCODING_MULAW_8, AUDIO_ENCODING_ULAW, 8 }, 61 { AUDIO_FILE_ENCODING_LINEAR_8, AUDIO_ENCODING_SLINEAR_BE, 8 }, 62 { AUDIO_FILE_ENCODING_LINEAR_16, AUDIO_ENCODING_SLINEAR_BE, 16 }, 63 { AUDIO_FILE_ENCODING_LINEAR_24, AUDIO_ENCODING_SLINEAR_BE, 24 }, 64 { AUDIO_FILE_ENCODING_LINEAR_32, AUDIO_ENCODING_SLINEAR_BE, 32 }, 65 #if 0 66 /* 67 * we should make some of these available. the, eg ultrasparc, port 68 * can use the VIS instructions (if available) do do some of these 69 * mpeg ones. 70 */ 71 { AUDIO_FILE_ENCODING_FLOAT, AUDIO_ENCODING_ULAW, 32 }, 72 { AUDIO_FILE_ENCODING_DOUBLE, AUDIO_ENCODING_ULAW, 64 }, 73 { AUDIO_FILE_ENCODING_ADPCM_G721, AUDIO_ENCODING_ULAW, 4 }, 74 { AUDIO_FILE_ENCODING_ADPCM_G722, AUDIO_ENCODING_ULAW, 0 }, 75 { AUDIO_FILE_ENCODING_ADPCM_G723_3, AUDIO_ENCODING_ULAW, 3 }, 76 { AUDIO_FILE_ENCODING_ADPCM_G723_5, AUDIO_ENCODING_ULAW, 5 }, 77 #endif 78 { AUDIO_FILE_ENCODING_ALAW_8, AUDIO_ENCODING_ALAW, 8 }, 79 { -1, -1, -1 } 80 }; 81 82 int 83 audio_sun_to_encoding(int sun_encoding, u_int *encp, u_int *precp) 84 { 85 int i; 86 87 for (i = 0; file2sw_encodings[i].file_encoding != -1; i++) 88 if (file2sw_encodings[i].file_encoding == sun_encoding) { 89 *precp = file2sw_encodings[i].precision; 90 *encp = file2sw_encodings[i].encoding; 91 return (0); 92 } 93 return (1); 94 } 95 96 int 97 audio_encoding_to_sun(int encoding, int precision, int *sunep) 98 { 99 int i; 100 101 for (i = 0; file2sw_encodings[i].file_encoding != -1; i++) 102 if (file2sw_encodings[i].encoding == encoding && 103 file2sw_encodings[i].precision == precision) { 104 *sunep = file2sw_encodings[i].file_encoding; 105 return (0); 106 } 107 return (1); 108 } 109