1 /* $NetBSD: sun.c,v 1.2 2002/01/15 17:01:33 mrg 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 35 #include <sys/types.h> 36 #include <sys/audioio.h> 37 #include <sys/ioctl.h> 38 #include <sys/time.h> 39 40 #include <ctype.h> 41 #include <err.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 46 #include "libaudio.h" 47 48 /* 49 * SunOS/NeXT .au format helpers 50 */ 51 struct { 52 int file_encoding; 53 int encoding; 54 int precision; 55 } file2sw_encodings[] = { 56 { AUDIO_FILE_ENCODING_MULAW_8, AUDIO_ENCODING_ULAW, 8 }, 57 { AUDIO_FILE_ENCODING_LINEAR_8, AUDIO_ENCODING_SLINEAR_BE, 8 }, 58 { AUDIO_FILE_ENCODING_LINEAR_16, AUDIO_ENCODING_SLINEAR_BE, 16 }, 59 { AUDIO_FILE_ENCODING_LINEAR_24, AUDIO_ENCODING_SLINEAR_BE, 24 }, 60 { AUDIO_FILE_ENCODING_LINEAR_32, AUDIO_ENCODING_SLINEAR_BE, 32 }, 61 #if 0 62 /* 63 * we should make some of these available. the, eg ultrasparc, port 64 * can use the VIS instructions (if available) do do some of these 65 * mpeg ones. 66 */ 67 { AUDIO_FILE_ENCODING_FLOAT, AUDIO_ENCODING_ULAW, 32 }, 68 { AUDIO_FILE_ENCODING_DOUBLE, AUDIO_ENCODING_ULAW, 64 }, 69 { AUDIO_FILE_ENCODING_ADPCM_G721, AUDIO_ENCODING_ULAW, 4 }, 70 { AUDIO_FILE_ENCODING_ADPCM_G722, AUDIO_ENCODING_ULAW, 0 }, 71 { AUDIO_FILE_ENCODING_ADPCM_G723_3, AUDIO_ENCODING_ULAW, 3 }, 72 { AUDIO_FILE_ENCODING_ADPCM_G723_5, AUDIO_ENCODING_ULAW, 5 }, 73 #endif 74 { AUDIO_FILE_ENCODING_ALAW_8, AUDIO_ENCODING_ALAW, 8 }, 75 { -1, -1 } 76 }; 77 78 int 79 audio_sun_to_encoding(sun_encoding, encp, precp) 80 int sun_encoding; 81 int *encp; 82 int *precp; 83 { 84 int i; 85 86 for (i = 0; file2sw_encodings[i].file_encoding != -1; i++) 87 if (file2sw_encodings[i].file_encoding == sun_encoding) { 88 *precp = file2sw_encodings[i].precision; 89 *encp = file2sw_encodings[i].encoding; 90 return (0); 91 } 92 return (1); 93 } 94 95 int 96 audio_encoding_to_sun(encoding, precision, sunep) 97 int encoding; 98 int precision; 99 int *sunep; 100 { 101 int i; 102 103 for (i = 0; file2sw_encodings[i].file_encoding != -1; i++) 104 if (file2sw_encodings[i].encoding == encoding && 105 file2sw_encodings[i].precision == precision) { 106 *sunep = file2sw_encodings[i].file_encoding; 107 return (0); 108 } 109 return (1); 110 } 111