1 /* $NetBSD: sun.c,v 1.3 2003/06/23 12:15:01 agc 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 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 /* 32 * XXX this is slightly icky in places... 33 */ 34 #include <sys/cdefs.h> 35 36 #ifndef lint 37 __RCSID("$NetBSD: sun.c,v 1.3 2003/06/23 12:15:01 agc Exp $"); 38 #endif 39 40 41 #include <sys/types.h> 42 #include <sys/audioio.h> 43 #include <sys/ioctl.h> 44 #include <sys/time.h> 45 46 #include <ctype.h> 47 #include <err.h> 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <string.h> 51 52 #include "libaudio.h" 53 54 /* 55 * SunOS/NeXT .au format helpers 56 */ 57 struct { 58 int file_encoding; 59 int encoding; 60 int precision; 61 } file2sw_encodings[] = { 62 { AUDIO_FILE_ENCODING_MULAW_8, AUDIO_ENCODING_ULAW, 8 }, 63 { AUDIO_FILE_ENCODING_LINEAR_8, AUDIO_ENCODING_SLINEAR_BE, 8 }, 64 { AUDIO_FILE_ENCODING_LINEAR_16, AUDIO_ENCODING_SLINEAR_BE, 16 }, 65 { AUDIO_FILE_ENCODING_LINEAR_24, AUDIO_ENCODING_SLINEAR_BE, 24 }, 66 { AUDIO_FILE_ENCODING_LINEAR_32, AUDIO_ENCODING_SLINEAR_BE, 32 }, 67 #if 0 68 /* 69 * we should make some of these available. the, eg ultrasparc, port 70 * can use the VIS instructions (if available) do do some of these 71 * mpeg ones. 72 */ 73 { AUDIO_FILE_ENCODING_FLOAT, AUDIO_ENCODING_ULAW, 32 }, 74 { AUDIO_FILE_ENCODING_DOUBLE, AUDIO_ENCODING_ULAW, 64 }, 75 { AUDIO_FILE_ENCODING_ADPCM_G721, AUDIO_ENCODING_ULAW, 4 }, 76 { AUDIO_FILE_ENCODING_ADPCM_G722, AUDIO_ENCODING_ULAW, 0 }, 77 { AUDIO_FILE_ENCODING_ADPCM_G723_3, AUDIO_ENCODING_ULAW, 3 }, 78 { AUDIO_FILE_ENCODING_ADPCM_G723_5, AUDIO_ENCODING_ULAW, 5 }, 79 #endif 80 { AUDIO_FILE_ENCODING_ALAW_8, AUDIO_ENCODING_ALAW, 8 }, 81 { -1, -1 } 82 }; 83 84 int 85 audio_sun_to_encoding(sun_encoding, encp, precp) 86 int sun_encoding; 87 int *encp; 88 int *precp; 89 { 90 int i; 91 92 for (i = 0; file2sw_encodings[i].file_encoding != -1; i++) 93 if (file2sw_encodings[i].file_encoding == sun_encoding) { 94 *precp = file2sw_encodings[i].precision; 95 *encp = file2sw_encodings[i].encoding; 96 return (0); 97 } 98 return (1); 99 } 100 101 int 102 audio_encoding_to_sun(encoding, precision, sunep) 103 int encoding; 104 int precision; 105 int *sunep; 106 { 107 int i; 108 109 for (i = 0; file2sw_encodings[i].file_encoding != -1; i++) 110 if (file2sw_encodings[i].encoding == encoding && 111 file2sw_encodings[i].precision == precision) { 112 *sunep = file2sw_encodings[i].file_encoding; 113 return (0); 114 } 115 return (1); 116 } 117