1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <stdio.h> 30*0Sstevel@tonic-gate #include <string.h> 31*0Sstevel@tonic-gate #include <ctype.h> 32*0Sstevel@tonic-gate #include <math.h> 33*0Sstevel@tonic-gate #include <AudioHdr.h> 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate #define irint(d) ((int)d) 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate // Convert a string to lowercase and return an allocated copy of it. 38*0Sstevel@tonic-gate // XXX - There really should be a string-insensitive 8-bit compare routine. 39*0Sstevel@tonic-gate static char * 40*0Sstevel@tonic-gate to_lowercase( 41*0Sstevel@tonic-gate char *str) 42*0Sstevel@tonic-gate { 43*0Sstevel@tonic-gate unsigned char *oldstr; 44*0Sstevel@tonic-gate unsigned char *newstr; 45*0Sstevel@tonic-gate int i; 46*0Sstevel@tonic-gate 47*0Sstevel@tonic-gate oldstr = (unsigned char *) str; 48*0Sstevel@tonic-gate newstr = new unsigned char [strlen(str) + 1]; 49*0Sstevel@tonic-gate for (i = 0; ; i++) { 50*0Sstevel@tonic-gate if (isupper(oldstr[i])) 51*0Sstevel@tonic-gate newstr[i] = tolower(oldstr[i]); 52*0Sstevel@tonic-gate else 53*0Sstevel@tonic-gate newstr[i] = oldstr[i]; 54*0Sstevel@tonic-gate if (oldstr[i] == '\0') 55*0Sstevel@tonic-gate break; 56*0Sstevel@tonic-gate } 57*0Sstevel@tonic-gate return ((char *)newstr); 58*0Sstevel@tonic-gate } 59*0Sstevel@tonic-gate 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate 62*0Sstevel@tonic-gate // class AudioHdr parsing methods 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate // Return a string containing the sample rate 66*0Sstevel@tonic-gate char *AudioHdr:: 67*0Sstevel@tonic-gate RateString() const 68*0Sstevel@tonic-gate { 69*0Sstevel@tonic-gate char *str; 70*0Sstevel@tonic-gate int ratek; 71*0Sstevel@tonic-gate int rateh; 72*0Sstevel@tonic-gate int prec; 73*0Sstevel@tonic-gate 74*0Sstevel@tonic-gate str = new char[32]; 75*0Sstevel@tonic-gate ratek = sample_rate / 1000; 76*0Sstevel@tonic-gate rateh = sample_rate % 1000; 77*0Sstevel@tonic-gate if (rateh == 0) { 78*0Sstevel@tonic-gate (void) sprintf(str, "%dkHz", ratek); 79*0Sstevel@tonic-gate } else { 80*0Sstevel@tonic-gate // scale down to print minimum digits after the decimal point 81*0Sstevel@tonic-gate prec = 3; 82*0Sstevel@tonic-gate if ((rateh % 10) == 0) { 83*0Sstevel@tonic-gate prec--; 84*0Sstevel@tonic-gate rateh /= 10; 85*0Sstevel@tonic-gate } 86*0Sstevel@tonic-gate if ((rateh % 10) == 0) { 87*0Sstevel@tonic-gate prec--; 88*0Sstevel@tonic-gate rateh /= 10; 89*0Sstevel@tonic-gate } 90*0Sstevel@tonic-gate (void) sprintf(str, "%d.%0*dkHz", ratek, prec, rateh); 91*0Sstevel@tonic-gate } 92*0Sstevel@tonic-gate return (str); 93*0Sstevel@tonic-gate } 94*0Sstevel@tonic-gate 95*0Sstevel@tonic-gate // Return a string containing the number of channels 96*0Sstevel@tonic-gate char *AudioHdr:: 97*0Sstevel@tonic-gate ChannelString() const 98*0Sstevel@tonic-gate { 99*0Sstevel@tonic-gate char *str; 100*0Sstevel@tonic-gate 101*0Sstevel@tonic-gate str = new char[32]; 102*0Sstevel@tonic-gate switch (channels) { 103*0Sstevel@tonic-gate case 1: 104*0Sstevel@tonic-gate (void) sprintf(str, "mono"); 105*0Sstevel@tonic-gate break; 106*0Sstevel@tonic-gate case 2: 107*0Sstevel@tonic-gate (void) sprintf(str, "stereo"); 108*0Sstevel@tonic-gate break; 109*0Sstevel@tonic-gate case 4: 110*0Sstevel@tonic-gate (void) sprintf(str, "quad"); 111*0Sstevel@tonic-gate break; 112*0Sstevel@tonic-gate default: 113*0Sstevel@tonic-gate (void) sprintf(str, "%d-channel", channels); 114*0Sstevel@tonic-gate break; 115*0Sstevel@tonic-gate } 116*0Sstevel@tonic-gate return (str); 117*0Sstevel@tonic-gate } 118*0Sstevel@tonic-gate 119*0Sstevel@tonic-gate // Return a string containing the encoding 120*0Sstevel@tonic-gate char *AudioHdr:: 121*0Sstevel@tonic-gate EncodingString() const 122*0Sstevel@tonic-gate { 123*0Sstevel@tonic-gate char *str; 124*0Sstevel@tonic-gate Double prec; 125*0Sstevel@tonic-gate int iprec; 126*0Sstevel@tonic-gate 127*0Sstevel@tonic-gate str = new char[64]; 128*0Sstevel@tonic-gate if ((samples_per_unit == 0) || (bytes_per_unit == 0) || 129*0Sstevel@tonic-gate (encoding == NONE)) { 130*0Sstevel@tonic-gate (void) sprintf(str, "???"); 131*0Sstevel@tonic-gate } else { 132*0Sstevel@tonic-gate // First encode precision 133*0Sstevel@tonic-gate iprec = (bytes_per_unit * 8) / samples_per_unit; 134*0Sstevel@tonic-gate prec = ((Double)bytes_per_unit * 8.) / (Double)samples_per_unit; 135*0Sstevel@tonic-gate if (prec == (Double) iprec) { 136*0Sstevel@tonic-gate (void) sprintf(str, "%d-bit ", iprec); 137*0Sstevel@tonic-gate } else { 138*0Sstevel@tonic-gate (void) sprintf(str, "%.1f-bit ", double(prec)); 139*0Sstevel@tonic-gate } 140*0Sstevel@tonic-gate 141*0Sstevel@tonic-gate // Then encode format 142*0Sstevel@tonic-gate switch (encoding) { 143*0Sstevel@tonic-gate case ULAW: 144*0Sstevel@tonic-gate // XXX - See bug 1121000 145*0Sstevel@tonic-gate // XXX - (void) strcat(str, "�-law"); 146*0Sstevel@tonic-gate (void) strcat(str, "u-law"); 147*0Sstevel@tonic-gate break; 148*0Sstevel@tonic-gate case ALAW: 149*0Sstevel@tonic-gate (void) strcat(str, "A-law"); 150*0Sstevel@tonic-gate break; 151*0Sstevel@tonic-gate case LINEAR: 152*0Sstevel@tonic-gate (void) strcat(str, "linear"); 153*0Sstevel@tonic-gate break; 154*0Sstevel@tonic-gate case FLOAT: 155*0Sstevel@tonic-gate (void) strcat(str, "float"); 156*0Sstevel@tonic-gate break; 157*0Sstevel@tonic-gate case G721: 158*0Sstevel@tonic-gate (void) strcat(str, "G.721 ADPCM"); 159*0Sstevel@tonic-gate break; 160*0Sstevel@tonic-gate case G722: 161*0Sstevel@tonic-gate (void) strcat(str, "G.722 ADPCM"); 162*0Sstevel@tonic-gate break; 163*0Sstevel@tonic-gate case G723: 164*0Sstevel@tonic-gate (void) strcat(str, "G.723 ADPCM"); 165*0Sstevel@tonic-gate break; 166*0Sstevel@tonic-gate case DVI: 167*0Sstevel@tonic-gate (void) strcat(str, "DVI ADPCM"); 168*0Sstevel@tonic-gate break; 169*0Sstevel@tonic-gate default: 170*0Sstevel@tonic-gate (void) strcat(str, "???"); 171*0Sstevel@tonic-gate break; 172*0Sstevel@tonic-gate } 173*0Sstevel@tonic-gate } 174*0Sstevel@tonic-gate return (str); 175*0Sstevel@tonic-gate } 176*0Sstevel@tonic-gate 177*0Sstevel@tonic-gate // Return a string containing the entire audio encoding 178*0Sstevel@tonic-gate char *AudioHdr:: 179*0Sstevel@tonic-gate FormatString() const 180*0Sstevel@tonic-gate { 181*0Sstevel@tonic-gate char *str; 182*0Sstevel@tonic-gate char *rate; 183*0Sstevel@tonic-gate char *chan; 184*0Sstevel@tonic-gate char *enc; 185*0Sstevel@tonic-gate 186*0Sstevel@tonic-gate str = new char[4 * 32]; 187*0Sstevel@tonic-gate 188*0Sstevel@tonic-gate enc = EncodingString(); 189*0Sstevel@tonic-gate rate = RateString(); 190*0Sstevel@tonic-gate chan = ChannelString(); 191*0Sstevel@tonic-gate (void) sprintf(str, "%s, %s, %s", enc, rate, chan); 192*0Sstevel@tonic-gate delete rate; 193*0Sstevel@tonic-gate delete chan; 194*0Sstevel@tonic-gate delete enc; 195*0Sstevel@tonic-gate return (str); 196*0Sstevel@tonic-gate } 197*0Sstevel@tonic-gate 198*0Sstevel@tonic-gate // Parse a string containing the sample rate 199*0Sstevel@tonic-gate AudioError AudioHdr:: 200*0Sstevel@tonic-gate RateParse( 201*0Sstevel@tonic-gate char *str) 202*0Sstevel@tonic-gate { 203*0Sstevel@tonic-gate static char *lib_khz = NULL; 204*0Sstevel@tonic-gate static char *lib_hz = NULL; 205*0Sstevel@tonic-gate 206*0Sstevel@tonic-gate double r; 207*0Sstevel@tonic-gate int rate; 208*0Sstevel@tonic-gate char khzbuf[16]; 209*0Sstevel@tonic-gate char *khz; 210*0Sstevel@tonic-gate 211*0Sstevel@tonic-gate if (str == NULL) 212*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 213*0Sstevel@tonic-gate 214*0Sstevel@tonic-gate // Init i18n string translations 215*0Sstevel@tonic-gate if (lib_khz == NULL) { 216*0Sstevel@tonic-gate lib_khz = to_lowercase(_MGET_("khz")); 217*0Sstevel@tonic-gate lib_hz = to_lowercase(_MGET_("hz")); 218*0Sstevel@tonic-gate } 219*0Sstevel@tonic-gate 220*0Sstevel@tonic-gate // Scan for a number followed by an optional khz designator 221*0Sstevel@tonic-gate switch (sscanf(str, " %lf %15s", &r, khzbuf)) { 222*0Sstevel@tonic-gate case 2: 223*0Sstevel@tonic-gate // Process 'khz', if present, and fall through 224*0Sstevel@tonic-gate khz = to_lowercase(khzbuf); 225*0Sstevel@tonic-gate if ((strcmp(khz, "khz") == 0) || 226*0Sstevel@tonic-gate (strcmp(khz, "khertz") == 0) || 227*0Sstevel@tonic-gate (strcmp(khz, "kilohertz") == 0) || 228*0Sstevel@tonic-gate (strcmp(khz, "k") == 0) || 229*0Sstevel@tonic-gate (strcoll(khz, lib_khz) == 0)) { 230*0Sstevel@tonic-gate r *= 1000.; 231*0Sstevel@tonic-gate } else if ((strcmp(khz, "hz") != 0) && 232*0Sstevel@tonic-gate (strcmp(khz, "hertz") != 0) && 233*0Sstevel@tonic-gate (strcoll(khz, lib_hz) != 0)) { 234*0Sstevel@tonic-gate delete khz; 235*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 236*0Sstevel@tonic-gate } 237*0Sstevel@tonic-gate delete khz; 238*0Sstevel@tonic-gate case 1: 239*0Sstevel@tonic-gate rate = irint(r); 240*0Sstevel@tonic-gate break; 241*0Sstevel@tonic-gate default: 242*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 243*0Sstevel@tonic-gate } 244*0Sstevel@tonic-gate // Check for reasonable bounds 245*0Sstevel@tonic-gate if ((rate <= 0) || (rate > 500000)) { 246*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 247*0Sstevel@tonic-gate } 248*0Sstevel@tonic-gate sample_rate = (unsigned int) rate; 249*0Sstevel@tonic-gate return (AUDIO_SUCCESS); 250*0Sstevel@tonic-gate } 251*0Sstevel@tonic-gate 252*0Sstevel@tonic-gate // Parse a string containing the number of channels 253*0Sstevel@tonic-gate AudioError AudioHdr:: 254*0Sstevel@tonic-gate ChannelParse( 255*0Sstevel@tonic-gate char *str) 256*0Sstevel@tonic-gate { 257*0Sstevel@tonic-gate static char *lib_chan = NULL; 258*0Sstevel@tonic-gate static char *lib_mono = NULL; 259*0Sstevel@tonic-gate static char *lib_stereo = NULL; 260*0Sstevel@tonic-gate char cstrbuf[16]; 261*0Sstevel@tonic-gate char *cstr; 262*0Sstevel@tonic-gate char xtra[4]; 263*0Sstevel@tonic-gate int chan; 264*0Sstevel@tonic-gate 265*0Sstevel@tonic-gate // Init i18n string translations 266*0Sstevel@tonic-gate if (lib_chan == NULL) { 267*0Sstevel@tonic-gate lib_chan = to_lowercase(_MGET_("channel")); 268*0Sstevel@tonic-gate lib_mono = to_lowercase(_MGET_("mono")); 269*0Sstevel@tonic-gate lib_stereo = to_lowercase(_MGET_("stereo")); 270*0Sstevel@tonic-gate } 271*0Sstevel@tonic-gate 272*0Sstevel@tonic-gate // Parse a number, followed by optional "-channel" 273*0Sstevel@tonic-gate switch (sscanf(str, " %d %15s", &chan, cstrbuf)) { 274*0Sstevel@tonic-gate case 2: 275*0Sstevel@tonic-gate cstr = to_lowercase(cstrbuf); 276*0Sstevel@tonic-gate if ((strcmp(cstr, "-channel") != 0) && 277*0Sstevel@tonic-gate (strcmp(cstr, "-chan") != 0) && 278*0Sstevel@tonic-gate (strcoll(cstr, lib_chan) != 0)) { 279*0Sstevel@tonic-gate delete cstr; 280*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 281*0Sstevel@tonic-gate } 282*0Sstevel@tonic-gate delete cstr; 283*0Sstevel@tonic-gate case 1: 284*0Sstevel@tonic-gate break; 285*0Sstevel@tonic-gate default: 286*0Sstevel@tonic-gate // If no number, look for reasonable keywords 287*0Sstevel@tonic-gate if (sscanf(str, " %15s %1s", cstrbuf, xtra) != 1) { 288*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 289*0Sstevel@tonic-gate } 290*0Sstevel@tonic-gate cstr = to_lowercase(cstrbuf); 291*0Sstevel@tonic-gate if ((strcmp(cstr, "mono") == 0) || 292*0Sstevel@tonic-gate (strcmp(cstr, "monaural") == 0) || 293*0Sstevel@tonic-gate (strcoll(cstr, lib_mono) == 0)) { 294*0Sstevel@tonic-gate chan = 1; 295*0Sstevel@tonic-gate } else if ((strcmp(cstr, "stereo") == 0) || 296*0Sstevel@tonic-gate (strcmp(cstr, "dual") == 0) || 297*0Sstevel@tonic-gate (strcoll(cstr, lib_stereo) == 0)) { 298*0Sstevel@tonic-gate chan = 2; 299*0Sstevel@tonic-gate } else if ((strcmp(cstr, "quad") == 0) || 300*0Sstevel@tonic-gate (strcmp(cstr, "quadrophonic") == 0)) { 301*0Sstevel@tonic-gate chan = 4; 302*0Sstevel@tonic-gate } else { 303*0Sstevel@tonic-gate delete cstr; 304*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 305*0Sstevel@tonic-gate } 306*0Sstevel@tonic-gate delete cstr; 307*0Sstevel@tonic-gate } 308*0Sstevel@tonic-gate if ((chan <= 0) || (chan > 256)) { 309*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 310*0Sstevel@tonic-gate } 311*0Sstevel@tonic-gate channels = (unsigned int) chan; 312*0Sstevel@tonic-gate return (AUDIO_SUCCESS); 313*0Sstevel@tonic-gate } 314*0Sstevel@tonic-gate 315*0Sstevel@tonic-gate // Parse a string containing the audio encoding 316*0Sstevel@tonic-gate AudioError AudioHdr:: 317*0Sstevel@tonic-gate EncodingParse( 318*0Sstevel@tonic-gate char *str) 319*0Sstevel@tonic-gate { 320*0Sstevel@tonic-gate static char *lib_bit = NULL; 321*0Sstevel@tonic-gate static char *lib_ulaw = NULL; 322*0Sstevel@tonic-gate static char *lib_Alaw = NULL; 323*0Sstevel@tonic-gate static char *lib_linear = NULL; 324*0Sstevel@tonic-gate int i; 325*0Sstevel@tonic-gate char *p; 326*0Sstevel@tonic-gate char estrbuf[64]; 327*0Sstevel@tonic-gate char *estr; 328*0Sstevel@tonic-gate char xtrabuf[32]; 329*0Sstevel@tonic-gate char *xtra; 330*0Sstevel@tonic-gate char *xp; 331*0Sstevel@tonic-gate char buf[BUFSIZ]; 332*0Sstevel@tonic-gate char *cp; 333*0Sstevel@tonic-gate double prec; 334*0Sstevel@tonic-gate 335*0Sstevel@tonic-gate // Init i18n string translations 336*0Sstevel@tonic-gate if (lib_bit == NULL) { 337*0Sstevel@tonic-gate lib_bit = to_lowercase(_MGET_("bit")); 338*0Sstevel@tonic-gate lib_ulaw = to_lowercase(_MGET_("u-law")); 339*0Sstevel@tonic-gate lib_Alaw = to_lowercase(_MGET_("A-law")); 340*0Sstevel@tonic-gate lib_linear = to_lowercase(_MGET_("linear8")); 341*0Sstevel@tonic-gate lib_linear = to_lowercase(_MGET_("linear")); 342*0Sstevel@tonic-gate } 343*0Sstevel@tonic-gate 344*0Sstevel@tonic-gate // first copy and remove leading spaces 345*0Sstevel@tonic-gate (void) strncpy(buf, str, BUFSIZ); 346*0Sstevel@tonic-gate for (cp = buf; *cp == ' '; cp++) 347*0Sstevel@tonic-gate continue; 348*0Sstevel@tonic-gate 349*0Sstevel@tonic-gate // Delimit the precision. If there is one, parse it. 350*0Sstevel@tonic-gate prec = 0.; 351*0Sstevel@tonic-gate p = strchr(cp, ' '); 352*0Sstevel@tonic-gate if (p != NULL) { 353*0Sstevel@tonic-gate *p++ = '\0'; 354*0Sstevel@tonic-gate i = sscanf(cp, " %lf %15s", &prec, xtrabuf); 355*0Sstevel@tonic-gate if (i == 0) { 356*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 357*0Sstevel@tonic-gate } 358*0Sstevel@tonic-gate if (i == 2) { 359*0Sstevel@tonic-gate // convert to lowercase and skip leading "-", if any 360*0Sstevel@tonic-gate xtra = to_lowercase(xtrabuf); 361*0Sstevel@tonic-gate xp = (xtra[0] == '-') ? &xtra[1] : &xtra[0]; 362*0Sstevel@tonic-gate 363*0Sstevel@tonic-gate if ((strcmp(xp, "bit") != 0) && 364*0Sstevel@tonic-gate (strcoll(xp, lib_bit) != 0)) { 365*0Sstevel@tonic-gate delete xtra; 366*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 367*0Sstevel@tonic-gate } 368*0Sstevel@tonic-gate delete xtra; 369*0Sstevel@tonic-gate } 370*0Sstevel@tonic-gate if ((prec <= 0.) || (prec > 512.)) { 371*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 372*0Sstevel@tonic-gate } 373*0Sstevel@tonic-gate 374*0Sstevel@tonic-gate // Don't be fooled by "8 bit" 375*0Sstevel@tonic-gate i = sscanf(p, " %15s", xtrabuf); 376*0Sstevel@tonic-gate if (i == 1) { 377*0Sstevel@tonic-gate // convert to lowercase and skip leading "-", if any 378*0Sstevel@tonic-gate xtra = to_lowercase(xtrabuf); 379*0Sstevel@tonic-gate xp = (xtra[0] == '-') ? &xtra[1] : &xtra[0]; 380*0Sstevel@tonic-gate if ((strcmp(xp, "bit") == 0) || 381*0Sstevel@tonic-gate (strcoll(xp, lib_bit) == 0)) { 382*0Sstevel@tonic-gate xp = strchr(p, ' '); 383*0Sstevel@tonic-gate if (xp != NULL) 384*0Sstevel@tonic-gate p = xp; 385*0Sstevel@tonic-gate else 386*0Sstevel@tonic-gate p += strlen(xtrabuf); 387*0Sstevel@tonic-gate } 388*0Sstevel@tonic-gate delete xtra; 389*0Sstevel@tonic-gate } 390*0Sstevel@tonic-gate } else { 391*0Sstevel@tonic-gate p = cp; 392*0Sstevel@tonic-gate } 393*0Sstevel@tonic-gate 394*0Sstevel@tonic-gate i = sscanf(p, " %31s %31s", estrbuf, xtrabuf); 395*0Sstevel@tonic-gate 396*0Sstevel@tonic-gate // If "adpcm" appended with a space, concatenate it 397*0Sstevel@tonic-gate if (i == 2) { 398*0Sstevel@tonic-gate xtra = to_lowercase(xtrabuf); 399*0Sstevel@tonic-gate if (strcmp(xtra, "adpcm") == 0) { 400*0Sstevel@tonic-gate (void) strcat(estrbuf, xtra); 401*0Sstevel@tonic-gate i = 1; 402*0Sstevel@tonic-gate } 403*0Sstevel@tonic-gate delete xtra; 404*0Sstevel@tonic-gate } 405*0Sstevel@tonic-gate if (i == 1) { 406*0Sstevel@tonic-gate estr = to_lowercase(estrbuf); 407*0Sstevel@tonic-gate if ((strcmp(estr, "ulaw") == 0) || 408*0Sstevel@tonic-gate (strcmp(estr, "u-law") == 0) || 409*0Sstevel@tonic-gate (strcmp(estr, "�law") == 0) || 410*0Sstevel@tonic-gate (strcmp(estr, "�-law") == 0) || 411*0Sstevel@tonic-gate (strcmp(estr, "mulaw") == 0) || 412*0Sstevel@tonic-gate (strcmp(estr, "mu-law") == 0) || 413*0Sstevel@tonic-gate (strcoll(estr, lib_ulaw) == 0)) { 414*0Sstevel@tonic-gate if ((prec != 0.) && (prec != 8.)) 415*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 416*0Sstevel@tonic-gate encoding = ULAW; 417*0Sstevel@tonic-gate samples_per_unit = 1; 418*0Sstevel@tonic-gate bytes_per_unit = 1; 419*0Sstevel@tonic-gate } else if ((strcmp(estr, "alaw") == 0) || 420*0Sstevel@tonic-gate (strcmp(estr, "a-law") == 0) || 421*0Sstevel@tonic-gate (strcoll(estr, lib_Alaw) == 0)) { 422*0Sstevel@tonic-gate if ((prec != 0.) && (prec != 8.)) 423*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 424*0Sstevel@tonic-gate encoding = ALAW; 425*0Sstevel@tonic-gate samples_per_unit = 1; 426*0Sstevel@tonic-gate bytes_per_unit = 1; 427*0Sstevel@tonic-gate 428*0Sstevel@tonic-gate } else if ((strcmp(estr, "linear") == 0) || 429*0Sstevel@tonic-gate (strcmp(estr, "lin") == 0) || 430*0Sstevel@tonic-gate (strcmp(estr, "pcm") == 0) || 431*0Sstevel@tonic-gate (strcoll(estr, lib_linear) == 0)) { 432*0Sstevel@tonic-gate if ((prec != 0.) && (prec != 8.) && (prec != 16.) && 433*0Sstevel@tonic-gate (prec != 24.) && (prec != 32.)) 434*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 435*0Sstevel@tonic-gate if (prec == 0.) 436*0Sstevel@tonic-gate prec = 16.; 437*0Sstevel@tonic-gate encoding = LINEAR; 438*0Sstevel@tonic-gate samples_per_unit = 1; 439*0Sstevel@tonic-gate bytes_per_unit = irint(prec / 8.); 440*0Sstevel@tonic-gate 441*0Sstevel@tonic-gate } else if ((strcmp(estr, "linear8") == 0) || 442*0Sstevel@tonic-gate (strcmp(estr, "lin8") == 0) || 443*0Sstevel@tonic-gate (strcmp(estr, "pcm8") == 0)) { 444*0Sstevel@tonic-gate if ((prec != 0.) && (prec != 8.)) 445*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 446*0Sstevel@tonic-gate prec = 8.; 447*0Sstevel@tonic-gate encoding = LINEAR; 448*0Sstevel@tonic-gate samples_per_unit = 1; 449*0Sstevel@tonic-gate bytes_per_unit = irint(prec / 8.); 450*0Sstevel@tonic-gate 451*0Sstevel@tonic-gate } else if ((strcmp(estr, "linear16") == 0) || 452*0Sstevel@tonic-gate (strcmp(estr, "lin16") == 0) || 453*0Sstevel@tonic-gate (strcmp(estr, "pcm16") == 0)) { 454*0Sstevel@tonic-gate if ((prec != 0.) && (prec != 16.)) 455*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 456*0Sstevel@tonic-gate prec = 16.; 457*0Sstevel@tonic-gate encoding = LINEAR; 458*0Sstevel@tonic-gate samples_per_unit = 1; 459*0Sstevel@tonic-gate bytes_per_unit = irint(prec / 8.); 460*0Sstevel@tonic-gate 461*0Sstevel@tonic-gate } else if ((strcmp(estr, "linear24") == 0) || 462*0Sstevel@tonic-gate (strcmp(estr, "lin24") == 0) || 463*0Sstevel@tonic-gate (strcmp(estr, "pcm24") == 0)) { 464*0Sstevel@tonic-gate if ((prec != 0.) && (prec != 24.)) 465*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 466*0Sstevel@tonic-gate prec = 24.; 467*0Sstevel@tonic-gate encoding = LINEAR; 468*0Sstevel@tonic-gate samples_per_unit = 1; 469*0Sstevel@tonic-gate bytes_per_unit = irint(prec / 8.); 470*0Sstevel@tonic-gate 471*0Sstevel@tonic-gate } else if ((strcmp(estr, "linear32") == 0) || 472*0Sstevel@tonic-gate (strcmp(estr, "lin32") == 0) || 473*0Sstevel@tonic-gate (strcmp(estr, "pcm32") == 0)) { 474*0Sstevel@tonic-gate if ((prec != 0.) && (prec != 32.)) 475*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 476*0Sstevel@tonic-gate prec = 32.; 477*0Sstevel@tonic-gate encoding = LINEAR; 478*0Sstevel@tonic-gate samples_per_unit = 1; 479*0Sstevel@tonic-gate bytes_per_unit = irint(prec / 8.); 480*0Sstevel@tonic-gate 481*0Sstevel@tonic-gate } else if ((strcmp(estr, "float") == 0) || 482*0Sstevel@tonic-gate (strcmp(estr, "floatingpoint") == 0) || 483*0Sstevel@tonic-gate (strcmp(estr, "floating-point") == 0)) { 484*0Sstevel@tonic-gate if ((prec != 0.) && (prec != 32.) && (prec != 64.)) 485*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 486*0Sstevel@tonic-gate if (prec == 0.) 487*0Sstevel@tonic-gate prec = 64.; 488*0Sstevel@tonic-gate encoding = FLOAT; 489*0Sstevel@tonic-gate samples_per_unit = 1; 490*0Sstevel@tonic-gate bytes_per_unit = irint(prec / 8.); 491*0Sstevel@tonic-gate 492*0Sstevel@tonic-gate } else if ((strcmp(estr, "float32") == 0) || 493*0Sstevel@tonic-gate (strcmp(estr, "floatingpoint32") == 0) || 494*0Sstevel@tonic-gate (strcmp(estr, "floating-point32") == 0)) { 495*0Sstevel@tonic-gate if ((prec != 0.) && (prec != 32.)) 496*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 497*0Sstevel@tonic-gate prec = 32.; 498*0Sstevel@tonic-gate encoding = FLOAT; 499*0Sstevel@tonic-gate samples_per_unit = 1; 500*0Sstevel@tonic-gate bytes_per_unit = irint(prec / 8.); 501*0Sstevel@tonic-gate 502*0Sstevel@tonic-gate } else if ((strcmp(estr, "float64") == 0) || 503*0Sstevel@tonic-gate (strcmp(estr, "double") == 0) || 504*0Sstevel@tonic-gate (strcmp(estr, "floatingpoint64") == 0) || 505*0Sstevel@tonic-gate (strcmp(estr, "floating-point64") == 0)) { 506*0Sstevel@tonic-gate if ((prec != 0.) && (prec != 64.)) 507*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 508*0Sstevel@tonic-gate prec = 64.; 509*0Sstevel@tonic-gate encoding = FLOAT; 510*0Sstevel@tonic-gate samples_per_unit = 1; 511*0Sstevel@tonic-gate bytes_per_unit = irint(prec / 8.); 512*0Sstevel@tonic-gate 513*0Sstevel@tonic-gate } else if ((strcmp(estr, "g.721") == 0) || 514*0Sstevel@tonic-gate (strcmp(estr, "g721") == 0) || 515*0Sstevel@tonic-gate (strcmp(estr, "g.721adpcm") == 0) || 516*0Sstevel@tonic-gate (strcmp(estr, "g721adpcm") == 0)) { 517*0Sstevel@tonic-gate if ((prec != 0.) && (prec != 4.)) 518*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 519*0Sstevel@tonic-gate encoding = G721; 520*0Sstevel@tonic-gate samples_per_unit = 2; 521*0Sstevel@tonic-gate bytes_per_unit = 1; 522*0Sstevel@tonic-gate 523*0Sstevel@tonic-gate } else if ((strcmp(estr, "g.722") == 0) || 524*0Sstevel@tonic-gate (strcmp(estr, "g722") == 0) || 525*0Sstevel@tonic-gate (strcmp(estr, "g.722adpcm") == 0) || 526*0Sstevel@tonic-gate (strcmp(estr, "g722adpcm") == 0)) { 527*0Sstevel@tonic-gate if ((prec != 0.) && (prec != 8.)) 528*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 529*0Sstevel@tonic-gate encoding = G722; 530*0Sstevel@tonic-gate samples_per_unit = 1; 531*0Sstevel@tonic-gate bytes_per_unit = 1; 532*0Sstevel@tonic-gate 533*0Sstevel@tonic-gate } else if ((strcmp(estr, "g.723") == 0) || 534*0Sstevel@tonic-gate (strcmp(estr, "g723") == 0) || 535*0Sstevel@tonic-gate (strcmp(estr, "g.723adpcm") == 0) || 536*0Sstevel@tonic-gate (strcmp(estr, "g723adpcm") == 0)) { 537*0Sstevel@tonic-gate if ((prec != 0.) && (prec != 3.) && (prec != 5.)) 538*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 539*0Sstevel@tonic-gate if (prec == 0.) 540*0Sstevel@tonic-gate prec = 3.; 541*0Sstevel@tonic-gate encoding = G723; 542*0Sstevel@tonic-gate samples_per_unit = 8; 543*0Sstevel@tonic-gate bytes_per_unit = irint(prec); 544*0Sstevel@tonic-gate 545*0Sstevel@tonic-gate } else if ((strcmp(estr, "g.723-3") == 0) || 546*0Sstevel@tonic-gate (strcmp(estr, "g.723_3") == 0) || 547*0Sstevel@tonic-gate (strcmp(estr, "g.723.3") == 0) || 548*0Sstevel@tonic-gate (strcmp(estr, "g723-3") == 0) || 549*0Sstevel@tonic-gate (strcmp(estr, "g723_3") == 0) || 550*0Sstevel@tonic-gate (strcmp(estr, "g723.3") == 0)) { 551*0Sstevel@tonic-gate if ((prec != 0.) && (prec != 3.)) 552*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 553*0Sstevel@tonic-gate prec = 3.; 554*0Sstevel@tonic-gate encoding = G723; 555*0Sstevel@tonic-gate samples_per_unit = 8; 556*0Sstevel@tonic-gate bytes_per_unit = irint(prec); 557*0Sstevel@tonic-gate 558*0Sstevel@tonic-gate } else if ((strcmp(estr, "g.723-5") == 0) || 559*0Sstevel@tonic-gate (strcmp(estr, "g.723_5") == 0) || 560*0Sstevel@tonic-gate (strcmp(estr, "g.723.5") == 0) || 561*0Sstevel@tonic-gate (strcmp(estr, "g723-5") == 0) || 562*0Sstevel@tonic-gate (strcmp(estr, "g723_5") == 0) || 563*0Sstevel@tonic-gate (strcmp(estr, "g723.5") == 0)) { 564*0Sstevel@tonic-gate if ((prec != 0.) && (prec != 5.)) 565*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 566*0Sstevel@tonic-gate prec = 5.; 567*0Sstevel@tonic-gate encoding = G723; 568*0Sstevel@tonic-gate samples_per_unit = 8; 569*0Sstevel@tonic-gate bytes_per_unit = irint(prec); 570*0Sstevel@tonic-gate 571*0Sstevel@tonic-gate } else if ((strcmp(estr, "dvi") == 0) || 572*0Sstevel@tonic-gate (strcmp(estr, "dviadpcm") == 0)) { 573*0Sstevel@tonic-gate if ((prec != 0.) && (prec != 4.)) 574*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 575*0Sstevel@tonic-gate encoding = DVI; 576*0Sstevel@tonic-gate samples_per_unit = 2; 577*0Sstevel@tonic-gate bytes_per_unit = 1; 578*0Sstevel@tonic-gate 579*0Sstevel@tonic-gate } else { 580*0Sstevel@tonic-gate delete estr; 581*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 582*0Sstevel@tonic-gate } 583*0Sstevel@tonic-gate delete estr; 584*0Sstevel@tonic-gate } else { 585*0Sstevel@tonic-gate return (AUDIO_ERR_BADARG); 586*0Sstevel@tonic-gate } 587*0Sstevel@tonic-gate return (AUDIO_SUCCESS); 588*0Sstevel@tonic-gate } 589*0Sstevel@tonic-gate 590*0Sstevel@tonic-gate // Parse a string containing the comma-separated audio encoding 591*0Sstevel@tonic-gate // Format is: "enc, chan, rate" 592*0Sstevel@tonic-gate // XXX - some countries use comma instead of decimal point 593*0Sstevel@tonic-gate // so there may be a problem with "44,1 khz" 594*0Sstevel@tonic-gate AudioError AudioHdr:: 595*0Sstevel@tonic-gate FormatParse( 596*0Sstevel@tonic-gate char *str) 597*0Sstevel@tonic-gate { 598*0Sstevel@tonic-gate char *pstr; 599*0Sstevel@tonic-gate char *ptr; 600*0Sstevel@tonic-gate char *p; 601*0Sstevel@tonic-gate AudioHdr newhdr; 602*0Sstevel@tonic-gate AudioError err; 603*0Sstevel@tonic-gate 604*0Sstevel@tonic-gate pstr = new char[strlen(str) + 1]; 605*0Sstevel@tonic-gate (void) strcpy(pstr, str); 606*0Sstevel@tonic-gate ptr = pstr; 607*0Sstevel@tonic-gate 608*0Sstevel@tonic-gate // Delimit and parse the precision string 609*0Sstevel@tonic-gate p = strchr(ptr, ','); 610*0Sstevel@tonic-gate if (p == NULL) 611*0Sstevel@tonic-gate p = strchr(ptr, ' '); 612*0Sstevel@tonic-gate if (p == NULL) { 613*0Sstevel@tonic-gate err = AUDIO_ERR_BADARG; 614*0Sstevel@tonic-gate goto errret; 615*0Sstevel@tonic-gate } 616*0Sstevel@tonic-gate *p++ = '\0'; 617*0Sstevel@tonic-gate err = newhdr.EncodingParse(ptr); 618*0Sstevel@tonic-gate 619*0Sstevel@tonic-gate // Delimit and parse the sample rate string 620*0Sstevel@tonic-gate if (!err) { 621*0Sstevel@tonic-gate ptr = p; 622*0Sstevel@tonic-gate p = strchr(ptr, ','); 623*0Sstevel@tonic-gate if (p == NULL) 624*0Sstevel@tonic-gate p = strchr(ptr, ' '); 625*0Sstevel@tonic-gate if (p == NULL) { 626*0Sstevel@tonic-gate err = AUDIO_ERR_BADARG; 627*0Sstevel@tonic-gate goto errret; 628*0Sstevel@tonic-gate } 629*0Sstevel@tonic-gate *p++ = '\0'; 630*0Sstevel@tonic-gate err = newhdr.RateParse(ptr); 631*0Sstevel@tonic-gate } 632*0Sstevel@tonic-gate 633*0Sstevel@tonic-gate // Finally, parse the channels string 634*0Sstevel@tonic-gate if (!err) { 635*0Sstevel@tonic-gate err = newhdr.ChannelParse(p); 636*0Sstevel@tonic-gate } 637*0Sstevel@tonic-gate 638*0Sstevel@tonic-gate // Validate the resulting header 639*0Sstevel@tonic-gate if (!err) 640*0Sstevel@tonic-gate err = newhdr.Validate(); 641*0Sstevel@tonic-gate if (!err) 642*0Sstevel@tonic-gate *this = newhdr; 643*0Sstevel@tonic-gate errret: 644*0Sstevel@tonic-gate delete pstr; 645*0Sstevel@tonic-gate return (err); 646*0Sstevel@tonic-gate } 647