src/flac/main.c

   1 /* flac - Command-line FLAC encoder/decoder
   2  * Copyright (C) 2000,2001,2002  Josh Coalson
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  17  */
  18
  19 #include <ctype.h>
  20 #include <stdarg.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #if !defined _MSC_VER && !defined __MINGW32__
  25 /* unlink is in stdio.h in VC++ */
  26 #include <unistd.h> /* for unlink() */
  27 #else
  28 #define strcasecmp stricmp
  29 #endif
  30 #include "FLAC/all.h"
  31 #include "analyze.h"
  32 #include "decode.h"
  33 #include "encode.h"
  34 #include "file.h"
  35
  36 #if 0
  37 /*[JEC] was:#if HAVE_GETOPT_LONG*/
  38 /*[JEC] see flac/include/share/getopt.h as to why the change */
  39 #  include <getopt.h>
  40 #else
  41 #  include "share/getopt.h"
  42 #endif
  43
  44 typedef enum { RAW, WAV, AIF } FileFormat;
  45
  46 static int do_it();
  47
  48 static void init_options();
  49 static int parse_options(int argc, char *argv[]);
  50 static int parse_option(int short_option, const char *long_option, const char *option_argument);
  51 static void free_options();
  52
  53 static int usage_error(const char *message, ...);
  54 static void short_usage();
  55 static void long_usage();
  56 static void format_mistake(const char *infilename, const char *wrong, const char *right);
  57
  58 static int encode_file(const char *infilename, const char *forced_outfilename, FLAC__bool is_last_file);
  59 static int decode_file(const char *infilename, const char *forced_outfilename);
  60
  61 static void die(const char *message);
  62 static char *local_strdup(const char *source);
  63
  64
  65 /*
  66  * FLAC__share__getopt format struct; note that for long options with no
  67  * short option equivalent we just set the 'val' field to 0.
  68  */
  69 static struct FLAC__share__option long_options_[] = {
  70         /*
  71          * general options
  72          */
  73         { "--help", 0, 0, 'H' },
  74         { "--decode", 0, 0, 'd' },
  75         { "--analyze", 0, 0, 'a' },
  76         { "--test", 0, 0, 't' },
  77         { "--stdout", 0, 0, 'c' },
  78         { "--silent", 0, 0, 's' },
  79         { "--delete-input-file", 0, 0, 0 },
  80         { "--output-prefix", 1, 0, 0 },
  81         { "--output-name", 1, 0, 'o' },
  82         { "--skip", 1, 0, 0 },
  83
  84         /*
  85          * decoding options
  86          */
  87         { "--decode-through-errors", 0, 0, 'F' },
  88
  89         /*
  90          * encoding options
  91          */
  92         { "--compression-level-0", 0, 0, '0' },
  93         { "--compression-level-1", 0, 0, '1' },
  94         { "--compression-level-2", 0, 0, '2' },
  95         { "--compression-level-3", 0, 0, '3' },
  96         { "--compression-level-4", 0, 0, '4' },
  97         { "--compression-level-5", 0, 0, '5' },
  98         { "--compression-level-6", 0, 0, '6' },
  99         { "--compression-level-7", 0, 0, '7' },
 100         { "--compression-level-8", 0, 0, '8' },
 101         { "--compression-level-9", 0, 0, '9' },
 102         { "--best", 0, 0, '8' },
 103         { "--fast", 0, 0, '0' },
 104         { "--super-secret-impractical-compression-level", 0, 0, 0 },
 105         { "--verify", 0, 0, 'V' },
 106         { "--force-raw-input", 0, 0, 0 },
 107         { "--lax", 0, 0, 0 },
 108         { "--sector-align", 0, 0, 0 },
 109         { "--seekpoint", 1, 0, 'S' },
 110         { "--padding", 1, 0, 'P' },
 111 #ifdef FLAC__HAS_OGG
 112         { "--ogg", 0, 0, 0 },
 113 #endif
 114         { "--blocksize", 1, 0, 'b' },
 115         { "--exhaustive-model-search", 0, 0, 'e' },
 116 #if 0
 117         /* @@@ deprecated: */
 118         { "--escape-coding", 0, 0, 'E' },
 119 #endif
 120         { "--max-lpc-order", 1, 0, 'l' },
 121         { "--mid-side", 0, 0, 'm' },
 122         { "--adaptive-mid-side", 0, 0, 'M' },
 123         { "--qlp-coeff-precision-search", 0, 0, 'p' },
 124         { "--qlp-coeff-precision", 1, 0, 'q' },
 125         { "--rice-partition-order", 1, 0, 'r' },
 126 #if 0
 127         /* @@@ deprecated: */
 128         { "--rice-parameter-search-distance", 1, 0, 'R' },
 129 #endif
 130         { "--endian", 1, 0, 0 },
 131         { "--channels", 1, 0, 0 },
 132         { "--bps", 1, 0, 0 },
 133         { "--sample-rate", 1, 0, 0 },
 134         { "--sign", 1, 0, 0 },
 135
 136         /*
 137          * analysis options
 138          */
 139         { "--residual-gnu-plot", 0, 0, 0 },
 140         { "--residual-text", 0, 0, 0 },
 141
 142         /*
 143          * negatives
 144          */
 145         { "--no-decode-through-errors", 0, 0, 0 },
 146         { "--no-silent", 0, 0, 0 },
 147         { "--no-seektable", 0, 0, 0 },
 148         { "--no-delete-input-file", 0, 0, 0 },
 149         { "--no-sector-align", 0, 0, 0 },
 150         { "--no-lax", 0, 0, 0 },
 151 #ifdef FLAC__HAS_OGG
 152         { "--no-ogg", 0, 0, 0 },
 153 #endif
 154         { "--no-exhaustive-model-search", 0, 0, 0 },
 155 #if 0
 156         /* @@@ deprecated: */
 157         { "--no-escape-coding", 0, 0, 0 },
 158 #endif
 159         { "--no-mid-side", 0, 0, 0 },
 160         { "--no-adaptive-mid-side", 0, 0, 0 },
 161         { "--no-qlp-coeff-prec-search", 0, 0, 0 },
 162         { "--no-padding", 0, 0, 0 },
 163         { "--no-verify", 0, 0, 0 },
 164         { "--no-residual-gnuplot", 0, 0, 0 },
 165         { "--no-residual-text", 0, 0, 0 },
 166
 167         {0, 0, 0, 0}
 168 };
 169
 170
 171 /*
 172  * global to hold command-line option values
 173  */
 174
 175 static struct {
 176         FLAC__bool show_long_help;
 177         FLAC__bool mode_decode;
 178         FLAC__bool verify;
 179         FLAC__bool verbose;
 180         FLAC__bool continue_through_decode_errors;
 181         FLAC__bool lax;
 182         FLAC__bool test_only;
 183         FLAC__bool analyze;
 184         FLAC__bool use_ogg;
 185         FLAC__bool do_mid_side;
 186         FLAC__bool loose_mid_side;
 187         FLAC__bool do_exhaustive_model_search;
 188         FLAC__bool do_escape_coding;
 189         FLAC__bool do_qlp_coeff_prec_search;
 190         FLAC__bool force_to_stdout;
 191         FLAC__bool force_raw_format;
 192         FLAC__bool delete_input;
 193         FLAC__bool sector_align;
 194         const char *cmdline_forced_outfilename;
 195         const char *output_prefix;
 196         analysis_options aopts;
 197         int padding;
 198         unsigned max_lpc_order;
 199         unsigned qlp_coeff_precision;
 200         FLAC__uint64 skip;
 201         int format_is_big_endian;
 202         int format_is_unsigned_samples;
 203         int format_channels;
 204         int format_bps;
 205         int format_sample_rate;
 206         int blocksize;
 207         int min_residual_partition_order;
 208         int max_residual_partition_order;
 209         int rice_parameter_search_dist;
 210         char requested_seek_points[50000]; /* @@@ bad MAGIC NUMBER */
 211         int num_requested_seek_points; /* -1 => no -S options were given, 0 => -S- was given */
 212
 213         unsigned num_files;
 214         char **filenames;
 215 } option_values;
 216
 217
 218 /*
 219  * miscellaneous globals
 220  */
 221
 222 static FLAC__int32 align_reservoir_0[588], align_reservoir_1[588]; /* for carrying over samples from --sector-align */
 223 static FLAC__int32 *align_reservoir[2] = { align_reservoir_0, align_reservoir_1 };
 224 static unsigned align_reservoir_samples = 0; /* 0 .. 587 */
 225
 226 static const char *flac_suffix = ".flac", *ogg_suffix = ".ogg";
 227
 228
 229 int main(int argc, char *argv[])
 230 {
 231         int retval = 0;
 232
 233         init_options();
 234
 235         if((retval = parse_options(argc, argv)) == 0)
 236                 retval = do_it();
 237
 238         free_options();
 239
 240         return retval;
 241 }
 242
 243 int do_it()
 244 {
 245         int retval = 0;
 246
 247         if(option_values.show_long_help) {
 248                 long_usage();
 249                 return 0;
 250         }
 251         else {
 252                 if(option_values.num_files == 0) {
 253                         short_usage();
 254                         return 0;
 255                 }
 256
 257                 /*
 258                  * tweak options; validate the values
 259                  */
 260                 if(!option_values.mode_decode) {
 261                         if(option_values.blocksize < 0) {
 262                                 if(option_values.max_lpc_order == 0)
 263                                         option_values.blocksize = 1152;
 264                                 else
 265                                         option_values.blocksize = 4608;
 266                         }
 267                         if(option_values.max_residual_partition_order < 0) {
 268                                 if(option_values.blocksize <= 1152)
 269                                         option_values.max_residual_partition_order = 2;
 270                                 else if(option_values.blocksize <= 2304)
 271                                         option_values.max_residual_partition_order = 3;
 272                                 else if(option_values.blocksize <= 4608)
 273                                         option_values.max_residual_partition_order = 3;
 274                                 else
 275                                         option_values.max_residual_partition_order = 4;
 276                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order;
 277                         }
 278                         if(option_values.rice_parameter_search_dist < 0) {
 279                                 option_values.rice_parameter_search_dist = 0;
 280                         }
 281                 }
 282                 else {
 283                         if(option_values.test_only) {
 284                                 if(option_values.skip > 0)
 285                                         return usage_error("ERROR: --skip is not allowed in test mode\n");
 286                         }
 287                 }
 288
 289                 FLAC__ASSERT(option_values.blocksize >= 0 || option_values.mode_decode);
 290
 291                 if(option_values.format_channels >= 0) {
 292                         if(option_values.format_channels == 0 || (unsigned)option_values.format_channels > FLAC__MAX_CHANNELS)
 293                                 return usage_error("ERROR: invalid number of channels '%u', must be > 0 and <= %u\n", option_values.format_channels, FLAC__MAX_CHANNELS);
 294                 }
 295                 if(option_values.format_bps >= 0) {
 296                         if(option_values.format_bps != 8 && option_values.format_bps != 16 && option_values.format_bps != 24)
 297                                 return usage_error("ERROR: invalid bits per sample '%u' (must be 8/16/24)\n", option_values.format_bps);
 298                 }
 299                 if(option_values.format_sample_rate >= 0) {
 300                         if(!FLAC__format_sample_rate_is_valid(option_values.format_sample_rate))
 301                                 return usage_error("ERROR: invalid sample rate '%u', must be > 0 and <= %u\n", option_values.format_sample_rate, FLAC__MAX_SAMPLE_RATE);
 302                 }
 303                 if(!option_values.mode_decode && ((unsigned)option_values.blocksize < FLAC__MIN_BLOCK_SIZE || (unsigned)option_values.blocksize > FLAC__MAX_BLOCK_SIZE)) {
 304                         return usage_error("ERROR: invalid blocksize '%u', must be >= %u and <= %u\n", (unsigned)option_values.blocksize, FLAC__MIN_BLOCK_SIZE, FLAC__MAX_BLOCK_SIZE);
 305                 }
 306                 if(option_values.qlp_coeff_precision > 0 && option_values.qlp_coeff_precision < FLAC__MIN_QLP_COEFF_PRECISION) {
 307                         return usage_error("ERROR: invalid value for -q '%u', must be 0 or >= %u\n", option_values.qlp_coeff_precision, FLAC__MIN_QLP_COEFF_PRECISION);
 308                 }
 309
 310                 if(option_values.sector_align) {
 311                         if(option_values.mode_decode)
 312                                 return usage_error("ERROR: --sector-align only allowed for encoding\n");
 313                         else if(option_values.skip > 0)
 314                                 return usage_error("ERROR: --sector-align not allowed with --skip\n");
 315                         else if(option_values.format_channels >= 0 && option_values.format_channels != 2)
 316                                 return usage_error("ERROR: --sector-align can only be done with stereo input\n");
 317                         else if(option_values.format_bps >= 0 && option_values.format_bps != 16)
 318                                 return usage_error("ERROR: --sector-align can only be done with 16-bit samples\n");
 319                         else if(option_values.format_sample_rate >= 0 && option_values.format_sample_rate != 44100)
 320                                 return usage_error("ERROR: --sector-align can only be done with a sample rate of 44100\n");
 321                 }
 322                 if(option_values.num_files > 1 && option_values.cmdline_forced_outfilename) {
 323                         return usage_error("ERROR: -o cannot be used with multiple files\n");
 324                 }
 325                 if(option_values.cmdline_forced_outfilename && option_values.output_prefix) {
 326                         return usage_error("ERROR: --output-prefix conflicts with -o\n");
 327                 }
 328
 329                 return 0;
 330         }
 331         if(option_values.verbose) {
 332                 fprintf(stderr, "\n");
 333                 fprintf(stderr, "flac %s, Copyright (C) 2000,2001,2002 Josh Coalson\n", FLAC__VERSION_STRING);
 334                 fprintf(stderr, "flac comes with ABSOLUTELY NO WARRANTY.  This is free software, and you are\n");
 335                 fprintf(stderr, "welcome to redistribute it under certain conditions.  Type `flac' for details.\n\n");
 336
 337                 if(!option_values.mode_decode) {
 338                         char padopt[16];
 339                         if(option_values.padding < 0)
 340                                 strcpy(padopt, "-");
 341                         else
 342                                 sprintf(padopt, " %d", option_values.padding);
 343                         fprintf(stderr,
 344                                 "options:%s%s"
 345 #ifdef FLAC__HAS_OGG
 346                                 "%s"
 347 #endif
 348                                 "%s -P%s -b %u%s -l %u%s%s%s -q %u -r %u,%u -R %u%s\n",
 349                                 option_values.delete_input?" --delete-input-file":"",
 350                                 option_values.sector_align?" --sector-align":"",
 351 #ifdef FLAC__HAS_OGG
 352                                 option_values.use_ogg?" --ogg":"",
 353 #endif
 354                                 option_values.lax?" --lax":"",
 355                                 padopt,
 356                                 (unsigned)option_values.blocksize,
 357                                 option_values.loose_mid_side?" -M":option_values.do_mid_side?" -m":"",
 358                                 option_values.max_lpc_order,
 359                                 option_values.do_exhaustive_model_search?" -e":"",
 360                                 option_values.do_escape_coding?" -E":"",
 361                                 option_values.do_qlp_coeff_prec_search?" -p":"",
 362                                 option_values.qlp_coeff_precision,
 363                                 (unsigned)option_values.min_residual_partition_order,
 364                                 (unsigned)option_values.max_residual_partition_order,
 365                                 (unsigned)option_values.rice_parameter_search_dist,
 366                                 option_values.verify? " -V":""
 367                         );
 368                 }
 369         }
 370
 371         if(option_values.mode_decode) {
 372                 FLAC__bool first = true;
 373
 374                 if(option_values.num_files == 0) {
 375                         retval = decode_file("-", 0);
 376                 }
 377                 else {
 378                         unsigned i;
 379                         if(option_values.num_files > 1)
 380                                 option_values.cmdline_forced_outfilename = 0;
 381                         for(i = 0, retval = 0; i < option_values.num_files && retval == 0; i++) {
 382                                 if(0 == strcmp(option_values.filenames[i], "-") && !first)
 383                                         continue;
 384                                 retval = decode_file(option_values.filenames[i], 0);
 385                                 first = false;
 386                         }
 387                 }
 388         }
 389         else { /* encode */
 390                 FLAC__bool first = true;
 391
 392                 if(option_values.num_files == 0) {
 393                         retval = encode_file("-", 0, true);
 394                 }
 395                 else {
 396                         unsigned i;
 397                         if(option_values.num_files > 1)
 398                                 option_values.cmdline_forced_outfilename = 0;
 399                         for(i = 0, retval = 0; i < option_values.num_files && retval == 0; i++) {
 400                                 if(0 == strcmp(option_values.filenames[i], "-") && !first)
 401                                         continue;
 402                                 retval = encode_file(option_values.filenames[i], 0, i == (option_values.num_files-1));
 403                                 first = false;
 404                         }
 405                 }
 406         }
 407
 408         return retval;
 409 }
 410
 411 void init_options()
 412 {
 413         option_values.show_long_help = false;
 414         option_values.mode_decode = false;
 415         option_values.verify = false;
 416         option_values.verbose = true;
 417         option_values.continue_through_decode_errors = false;
 418         option_values.lax = false;
 419         option_values.test_only = false;
 420         option_values.analyze = false;
 421         option_values.use_ogg = false;
 422         option_values.do_mid_side = true;
 423         option_values.loose_mid_side = false;
 424         option_values.do_exhaustive_model_search = false;
 425         option_values.do_escape_coding = false;
 426         option_values.do_qlp_coeff_prec_search = false;
 427         option_values.force_to_stdout = false;
 428         option_values.force_raw_format = false;
 429         option_values.delete_input = false;
 430         option_values.sector_align = false;
 431         option_values.cmdline_forced_outfilename = 0;
 432         option_values.output_prefix = 0;
 433         option_values.aopts.do_residual_text = false;
 434         option_values.aopts.do_residual_gnuplot = false;
 435         option_values.padding = -1;
 436         option_values.max_lpc_order = 8;
 437         option_values.qlp_coeff_precision = 0;
 438         option_values.skip = 0;
 439         option_values.format_is_big_endian = -1;
 440         option_values.format_is_unsigned_samples = false;
 441         option_values.format_channels = -1;
 442         option_values.format_bps = -1;
 443         option_values.format_sample_rate = -1;
 444         option_values.blocksize = -1;
 445         option_values.min_residual_partition_order = -1;
 446         option_values.max_residual_partition_order = -1;
 447         option_values.rice_parameter_search_dist = -1;
 448         option_values.requested_seek_points[0] = '\0';
 449         option_values.num_requested_seek_points = -1;
 450
 451         option_values.num_files = 0;
 452         option_values.filenames = 0;
 453 }
 454
 455 int parse_options(int argc, char *argv[])
 456 {
 457         int short_option;
 458         int option_index = 1;
 459         FLAC__bool had_error = false;
 460         /*@@@ E and R: are deprecated */
 461         const char *short_opts = "0123456789ab:cdeFHl:mMo:pP:q:r:sS:tV";
 462
 463         while ((short_option = FLAC__share__getopt_long(argc, argv, short_opts, long_options_, &option_index)) != -1) {
 464                 switch (short_option) {
 465                         case 0: /* long option with no equivalent short option */
 466                                 had_error |= (parse_option(short_option, long_options_[option_index].name, FLAC__share__optarg) != 0);
 467                                 break;
 468                         case '?':
 469                         case ':':
 470                                 had_error = true;
 471                                 break;
 472                         default: /* short option */
 473                                 had_error |= (parse_option(short_option, 0, FLAC__share__optarg) != 0);
 474                                 break;
 475                 }
 476         }
 477
 478         if(had_error) {
 479                 return 1;
 480         }
 481
 482         FLAC__ASSERT(FLAC__share__optind <= argc);
 483
 484         option_values.num_files = argc - FLAC__share__optind;
 485
 486         if(option_values.num_files > 0) {
 487                 unsigned i = 0;
 488                 if(0 == (option_values.filenames = malloc(sizeof(char *) * option_values.num_files)))
 489                         die("out of memory allocating space for file names list");
 490                 while(FLAC__share__optind < argc)
 491                         option_values.filenames[i++] = local_strdup(argv[FLAC__share__optind++]);
 492         }
 493
 494         return 0;
 495 }
 496
 497 int parse_option(int short_option, const char *long_option, const char *option_argument)
 498 {
 499         FLAC__bool ok = true;
 500         char *p;
 501
 502         if(short_option == 0) {
 503                 FLAC__ASSERT(0 != long_option);
 504                 if(0 == strcmp(long_option, "--delete-input-file")) {
 505                         option_values.delete_input = true;
 506                 }
 507                 else if(0 == strcmp(long_option, "--output-prefix")) {
 508                         FLAC__ASSERT(0 != option_argument);
 509                         option_values.output_prefix = option_argument;
 510                 }
 511                 else if(0 == strcmp(long_option, "--skip")) {
 512                         FLAC__ASSERT(0 != option_argument);
 513                         option_values.skip = (FLAC__uint64)atoi(option_argument); /* @@@ takes a pretty damn big file to overflow atoi() here, but it could happen */
 514                 }
 515                 else if(0 == strcmp(long_option, "--super-secret-impractical-compression-level")) {
 516                         option_values.do_exhaustive_model_search = true;
 517                         option_values.do_escape_coding = true;
 518                         option_values.do_mid_side = true;
 519                         option_values.loose_mid_side = false;
 520                         option_values.do_qlp_coeff_prec_search = true;
 521                         option_values.min_residual_partition_order = 0;
 522                         option_values.max_residual_partition_order = 16;
 523                         option_values.rice_parameter_search_dist = 0;
 524                         option_values.max_lpc_order = 32;
 525                 }
 526                 else if(0 == strcmp(long_option, "--force-raw-input")) {
 527                         option_values.force_raw_format = true;
 528                 }
 529                 else if(0 == strcmp(long_option, "--lax")) {
 530                         option_values.lax = true;
 531                 }
 532                 else if(0 == strcmp(long_option, "--sector-align")) {
 533                         option_values.sector_align = true;
 534                 }
 535 #ifdef FLAC__HAS_OGG
 536                 else if(0 == strcmp(long_option, "--ogg")) {
 537                         option_values.use_ogg = true;
 538                 }
 539 #endif
 540                 else if(0 == strcmp(long_option, "--endian")) {
 541                         FLAC__ASSERT(0 != option_argument);
 542                         if(0 == strncmp(option_argument, "big", strlen(option_argument)))
 543                                 option_values.format_is_big_endian = true;
 544                         else if(0 == strncmp(option_argument, "little", strlen(option_argument)))
 545                                 option_values.format_is_big_endian = false;
 546                         else {
 547                                 return usage_error("ERROR: argument to --endian must be \"big\" or \"little\"\n");
 548                                 ok = false;
 549                         }
 550                 }
 551                 else if(0 == strcmp(long_option, "--channels")) {
 552                         FLAC__ASSERT(0 != option_argument);
 553                         option_values.format_channels = atoi(option_argument);
 554                 }
 555                 else if(0 == strcmp(long_option, "--bps")) {
 556                         FLAC__ASSERT(0 != option_argument);
 557                         option_values.format_bps = atoi(option_argument);
 558                 }
 559                 else if(0 == strcmp(long_option, "--sample-rate")) {
 560                         FLAC__ASSERT(0 != option_argument);
 561                         option_values.format_sample_rate = atoi(option_argument);
 562                 }
 563                 else if(0 == strcmp(long_option, "--sign")) {
 564                         FLAC__ASSERT(0 != option_argument);
 565                         if(0 == strncmp(option_argument, "signed", strlen(option_argument)))
 566                                 option_values.format_is_unsigned_samples = false;
 567                         else if(0 == strncmp(option_argument, "unsigned", strlen(option_argument)))
 568                                 option_values.format_is_unsigned_samples = true;
 569                         else {
 570                                 return usage_error("ERROR: argument to --sign must be \"signed\" or \"unsigned\"\n");
 571                                 ok = false;
 572                         }
 573                 }
 574                 else if(0 == strcmp(long_option, "--residual-gnu-plot")) {
 575                         option_values.aopts.do_residual_gnuplot = true;
 576                 }
 577                 else if(0 == strcmp(long_option, "--residual-text")) {
 578                         option_values.aopts.do_residual_text = true;
 579                 }
 580                 /*
 581                  * negatives
 582                  */
 583                 else if(0 == strcmp(long_option, "--no-decode-through-errors")) {
 584                         option_values.continue_through_decode_errors = false;
 585                 }
 586                 else if(0 == strcmp(long_option, "--no-silent")) {
 587                         option_values.verbose = true;
 588                 }
 589                 else if(0 == strcmp(long_option, "--no-seektable")) {
 590                         option_values.num_requested_seek_points = 0;
 591                         option_values.requested_seek_points[0] = '\0';
 592                 }
 593                 else if(0 == strcmp(long_option, "--no-delete-input-file")) {
 594                         option_values.delete_input = false;
 595                 }
 596                 else if(0 == strcmp(long_option, "--no-sector-align")) {
 597                         option_values.sector_align = false;
 598                 }
 599                 else if(0 == strcmp(long_option, "--no-lax")) {
 600                         option_values.lax = false;
 601                 }
 602 #ifdef FLAC__HAS_OGG
 603                 else if(0 == strcmp(long_option, "--no-ogg")) {
 604                         option_values.use_ogg = false;
 605                 }
 606 #endif
 607                 else if(0 == strcmp(long_option, "--no-exhaustive-model-search")) {
 608                         option_values.do_exhaustive_model_search = false;
 609                 }
 610 #if 0
 611                 /* @@@ deprecated: */
 612                 else if(0 == strcmp(long_option, "--no-escape-coding")) {
 613                         option_values.do_escape_coding = false;
 614                 }
 615 #endif
 616                 else if(0 == strcmp(long_option, "--no-mid-side")) {
 617                         option_values.do_mid_side = option_values.loose_mid_side = false;
 618                 }
 619                 else if(0 == strcmp(long_option, "--no-adaptive-mid-side")) {
 620                         option_values.loose_mid_side = option_values.do_mid_side = false;
 621                 }
 622                 else if(0 == strcmp(long_option, "--no-qlp-coeff-prec-search")) {
 623                         option_values.do_qlp_coeff_prec_search = false;
 624                 }
 625                 else if(0 == strcmp(long_option, "--no-padding")) {
 626                         option_values.padding = -1;
 627                 }
 628                 else if(0 == strcmp(long_option, "--no-verify")) {
 629                         option_values.verify = false;
 630                 }
 631                 else if(0 == strcmp(long_option, "--no-residual-gnuplot")) {
 632                         option_values.aopts.do_residual_gnuplot = false;
 633                 }
 634                 else if(0 == strcmp(long_option, "--no-residual-text")) {
 635                         option_values.aopts.do_residual_text = false;
 636                 }
 637         }
 638         else {
 639                 switch(short_option) {
 640                         case 'H':
 641                                 option_values.show_long_help = true;
 642                                 break;
 643                         case 'd':
 644                                 option_values.mode_decode = true;
 645                                 break;
 646                         case 'a':
 647                                 option_values.mode_decode = true;
 648                                 option_values.analyze = true;
 649                                 break;
 650                         case 't':
 651                                 option_values.mode_decode = true;
 652                                 option_values.test_only = true;
 653                                 break;
 654                         case 'c':
 655                                 option_values.force_to_stdout = true;
 656                                 break;
 657                         case 's':
 658                                 option_values.verbose = false;
 659                                 break;
 660                         case 'o':
 661                                 FLAC__ASSERT(0 != option_argument);
 662                                 option_values.cmdline_forced_outfilename = option_argument;
 663                                 break;
 664                         case 'F':
 665                                 option_values.continue_through_decode_errors = true;
 666                                 break;
 667                         case '0':
 668                                 option_values.do_exhaustive_model_search = false;
 669                                 option_values.do_escape_coding = false;
 670                                 option_values.do_mid_side = false;
 671                                 option_values.loose_mid_side = false;
 672                                 option_values.qlp_coeff_precision = 0;
 673                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 2;
 674                                 option_values.rice_parameter_search_dist = 0;
 675                                 option_values.max_lpc_order = 0;
 676                                 break;
 677                         case '1':
 678                                 option_values.do_exhaustive_model_search = false;
 679                                 option_values.do_escape_coding = false;
 680                                 option_values.do_mid_side = true;
 681                                 option_values.loose_mid_side = true;
 682                                 option_values.qlp_coeff_precision = 0;
 683                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 2;
 684                                 option_values.rice_parameter_search_dist = 0;
 685                                 option_values.max_lpc_order = 0;
 686                                 break;
 687                         case '2':
 688                                 option_values.do_exhaustive_model_search = false;
 689                                 option_values.do_escape_coding = false;
 690                                 option_values.do_mid_side = true;
 691                                 option_values.loose_mid_side = false;
 692                                 option_values.qlp_coeff_precision = 0;
 693                                 option_values.min_residual_partition_order = 0;
 694                                 option_values.max_residual_partition_order = 3;
 695                                 option_values.rice_parameter_search_dist = 0;
 696                                 option_values.max_lpc_order = 0;
 697                                 break;
 698                         case '3':
 699                                 option_values.do_exhaustive_model_search = false;
 700                                 option_values.do_escape_coding = false;
 701                                 option_values.do_mid_side = false;
 702                                 option_values.loose_mid_side = false;
 703                                 option_values.qlp_coeff_precision = 0;
 704                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
 705                                 option_values.rice_parameter_search_dist = 0;
 706                                 option_values.max_lpc_order = 6;
 707                                 break;
 708                         case '4':
 709                                 option_values.do_exhaustive_model_search = false;
 710                                 option_values.do_escape_coding = false;
 711                                 option_values.do_mid_side = true;
 712                                 option_values.loose_mid_side = true;
 713                                 option_values.qlp_coeff_precision = 0;
 714                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
 715                                 option_values.rice_parameter_search_dist = 0;
 716                                 option_values.max_lpc_order = 8;
 717                                 break;
 718                         case '5':
 719                                 option_values.do_exhaustive_model_search = false;
 720                                 option_values.do_escape_coding = false;
 721                                 option_values.do_mid_side = true;
 722                                 option_values.loose_mid_side = false;
 723                                 option_values.qlp_coeff_precision = 0;
 724                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
 725                                 option_values.rice_parameter_search_dist = 0;
 726                                 option_values.max_lpc_order = 8;
 727                                 break;
 728                         case '6':
 729                                 option_values.do_exhaustive_model_search = false;
 730                                 option_values.do_escape_coding = false;
 731                                 option_values.do_mid_side = true;
 732                                 option_values.loose_mid_side = false;
 733                                 option_values.qlp_coeff_precision = 0;
 734                                 option_values.min_residual_partition_order = 0;
 735                                 option_values.max_residual_partition_order = 4;
 736                                 option_values.rice_parameter_search_dist = 0;
 737                                 option_values.max_lpc_order = 8;
 738                                 break;
 739                         case '7':
 740                                 option_values.do_exhaustive_model_search = true;
 741                                 option_values.do_escape_coding = false;
 742                                 option_values.do_mid_side = true;
 743                                 option_values.loose_mid_side = false;
 744                                 option_values.qlp_coeff_precision = 0;
 745                                 option_values.min_residual_partition_order = 0;
 746                                 option_values.max_residual_partition_order = 6;
 747                                 option_values.rice_parameter_search_dist = 0;
 748                                 option_values.max_lpc_order = 8;
 749                                 break;
 750                         case '8':
 751                                 option_values.do_exhaustive_model_search = true;
 752                                 option_values.do_escape_coding = false;
 753                                 option_values.do_mid_side = true;
 754                                 option_values.loose_mid_side = false;
 755                                 option_values.qlp_coeff_precision = 0;
 756                                 option_values.min_residual_partition_order = 0;
 757                                 option_values.max_residual_partition_order = 6;
 758                                 option_values.rice_parameter_search_dist = 0;
 759                                 option_values.max_lpc_order = 12;
 760                                 break;
 761                         case '9':
 762                                 return usage_error("ERROR: compression level '9' is reserved\n");
 763                                 break;
 764                         case 'V':
 765                                 option_values.verify = true;
 766                                 break;
 767                         case 'S':
 768                                 FLAC__ASSERT(0 != option_argument);
 769                                 if(option_values.num_requested_seek_points < 0)
 770                                         option_values.num_requested_seek_points = 0;
 771                                 option_values.num_requested_seek_points++;
 772                                 strcat(option_values.requested_seek_points, option_argument);
 773                                 strcat(option_values.requested_seek_points, "<");
 774                                 break;
 775                         case 'P':
 776                                 FLAC__ASSERT(0 != option_argument);
 777                                 option_values.padding = atoi(option_argument);
 778                                 if(option_values.padding < 0) {
 779                                         return usage_error("ERROR: argument to -P must be >= 0\n");
 780                                 }
 781                                 break;
 782                         case 'b':
 783                                 FLAC__ASSERT(0 != option_argument);
 784                                 option_values.blocksize = atoi(option_argument);
 785                                 break;
 786                         case 'e':
 787                                 option_values.do_exhaustive_model_search = true;
 788                                 break;
 789                         case 'E':
 790                                 option_values.do_escape_coding = true;
 791                                 break;
 792                         case 'l':
 793                                 FLAC__ASSERT(0 != option_argument);
 794                                 option_values.max_lpc_order = atoi(option_argument);
 795                                 break;
 796                         case 'm':
 797                                 option_values.do_mid_side = true;
 798                                 option_values.loose_mid_side = false;
 799                                 break;
 800                         case 'M':
 801                                 option_values.loose_mid_side = option_values.do_mid_side = true;
 802                                 break;
 803                         case 'p':
 804                                 option_values.do_qlp_coeff_prec_search = true;
 805                                 break;
 806                         case 'q':
 807                                 FLAC__ASSERT(0 != option_argument);
 808                                 option_values.qlp_coeff_precision = atoi(option_argument);
 809                                 break;
 810                         case 'r':
 811                                 FLAC__ASSERT(0 != option_argument);
 812                                 p = strchr(option_argument, ',');
 813                                 if(0 == p) {
 814                                         option_values.min_residual_partition_order = 0;
 815                                         option_values.max_residual_partition_order = atoi(option_argument);
 816                                 }
 817                                 else {
 818                                         option_values.min_residual_partition_order = atoi(option_argument);
 819                                         option_values.max_residual_partition_order = atoi(++p);
 820                                 }
 821                                 break;
 822                         case 'R':
 823                                 FLAC__ASSERT(0 != option_argument);
 824                                 option_values.rice_parameter_search_dist = atoi(option_argument);
 825                                 break;
 826                         default:
 827                                 FLAC__ASSERT(0);
 828                 }
 829         }
 830
 831         return ok;
 832 }
 833
 834 void free_options()
 835 {
 836         if(0 != option_values.filenames)
 837                 free(option_values.filenames);
 838 }
 839
 840 int usage_error(const char *message, ...)
 841 {
 842         va_list args;
 843
 844         FLAC__ASSERT(0);
 845
 846         va_start(args, message);
 847
 848         (void) vfprintf(stderr, message, args);
 849
 850         va_end(args);
 851
 852         printf("Type \"flac\" for a usage summary or \"flac --help\" for all options\n");
 853
 854         return 1;
 855 }
 856
 857 static void usage_header()
 858 {
 859         printf("===============================================================================\n");
 860         printf("flac - Command-line FLAC encoder/decoder version %s\n", FLAC__VERSION_STRING);
 861         printf("Copyright (C) 2000,2001,2002  Josh Coalson\n");
 862         printf("\n");
 863         printf("This program is free software; you can redistribute it and/or\n");
 864         printf("modify it under the terms of the GNU General Public License\n");
 865         printf("as published by the Free Software Foundation; either version 2\n");
 866         printf("of the License, or (at your option) any later version.\n");
 867         printf("\n");
 868         printf("This program is distributed in the hope that it will be useful,\n");
 869         printf("but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
 870         printf("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n");
 871         printf("GNU General Public License for more details.\n");
 872         printf("\n");
 873         printf("You should have received a copy of the GNU General Public License\n");
 874         printf("along with this program; if not, write to the Free Software\n");
 875         printf("Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.\n");
 876         printf("===============================================================================\n");
 877 }
 878
 879 void short_usage()
 880 {
 881         usage_header();
 882         printf("\n");
 883         printf("This is the short help; for full help use 'flac --help'\n");
 884         printf("\n");
 885         printf("To encode:\n");
 886         printf("  flac [-#] [infile [...]]\n");
 887         printf("\n");
 888         printf("  -# is -0 (fastest compression) to -8 (highest compression); -5 is the default\n");
 889         printf("\n");
 890         printf("To decode:\n");
 891         printf("  flac -d [infile [...]]\n");
 892         printf("\n");
 893         printf("To test:\n");
 894         printf("  flac -t [infile [...]]\n");
 895 }
 896
 897 void long_usage()
 898 {
 899         usage_header();
 900         printf("Usage:\n");
 901         printf("  flac [options] [infile [...]]\n");
 902         printf("\n");
 903         printf("For encoding:\n");
 904         printf("  the input file(s) may be a PCM RIFF WAVE file, AIFF file, or raw samples\n");
 905         printf("  the output file(s) will be in FLAC format\n");
 906         printf("For decoding, the reverse is true\n");
 907         printf("\n");
 908         printf("A single 'infile' may be - for stdin.  No 'infile' implies stdin.  Use of\n");
 909         printf("stdin implies -c (write to stdout).  Normally you should use:\n");
 910         printf("   flac [options] -o outfilename  or  flac -d [options] -o outfilename\n");
 911         printf("instead of:\n");
 912         printf("   flac [options] > outfilename   or  flac -d [options] > outfilename\n");
 913         printf("since the former allows flac to seek backwards to write the STREAMINFO or\n");
 914         printf("RIFF WAVE header contents when necessary.\n");
 915         printf("\n");
 916         printf("flac checks for the presence of a AIFF/RIFF WAVE header to decide whether or\n");
 917         printf("not to treat an input file as AIFF/WAVE format or raw samples.  If any infile\n");
 918         printf("is raw you must specify the format options {-fb|fl} -fc -fp and -fs, which will\n");
 919         printf("apply to all raw files.  You can force AIFF/WAVE files to be treated as a raw\n");
 920         printf("files using -fr.\n");
 921         printf("\n");
 922         printf("generic options:\n");
 923         printf("  -d : decode (default behavior is encode)\n");
 924         printf("  -t : test (same as -d except no decoded file is written)\n");
 925         printf("  -a : analyze (same as -d except an analysis file is written)\n");
 926         printf("  -c : write output to stdout\n");
 927         printf("  -s : silent (do not write runtime encode/decode statistics)\n");
 928         printf("  -o filename : force the output file name (usually flac just changes the\n");
 929         printf("                extension)\n");
 930         printf("  --output-prefix string : prefix each output file name with the given string.\n");
 931         printf("    This can be useful for encoding/decoding files to a different directory.\n");
 932         printf("    Make sure if your string is a path name that it ends with a '/' slash.\n");
 933         printf("  --delete-input-file : deletes the input file after a successful encode/decode\n");
 934         printf("  --skip samples : can be used both for encoding and decoding\n");
 935         printf("analyze options:\n");
 936         printf("  --a-rtext : include residual signal in text output\n");
 937         printf("  --a-rgp : generate gnuplot files of residual distribution of each subframe\n");
 938         printf("decoding options:\n");
 939         printf("  -F : force decoder to continue decoding through stream errors\n");
 940         printf("encoding options:\n");
 941 #ifdef FLAC__HAS_OGG
 942         printf("  --ogg : output Ogg-FLAC stream instead of native FLAC\n");
 943 #endif
 944         printf("  --lax : allow encoder to generate non-Subset files\n");
 945         printf("  --sector-align : align encoding of multiple files on sector boundaries\n");
 946         printf("  -S { # | X | #x } : include a point or points in a SEEKTABLE\n");
 947         printf("       #  : a specific sample number for a seek point\n");
 948         printf("       X  : a placeholder point (always goes at the end of the SEEKTABLE)\n");
 949         printf("       #x : # evenly spaced seekpoints, the first being at sample 0\n");
 950         printf("     You may use many -S options; the resulting SEEKTABLE will be the unique-\n");
 951         printf("           ified union of all such values.\n");
 952         printf("     With no -S options, flac defaults to '-S 100x'.  Use -S- for no SEEKTABLE.\n");
 953         printf("     Note: -S #x will not work if the encoder can't determine the input size\n");
 954         printf("           before starting.\n");
 955         printf("     Note: if you use -S # and # is >= samples in the input, there will be\n");
 956         printf("           either no seek point entered (if the input size is determinable\n");
 957         printf("           before encoding starts) or a placeholder point (if input size is not\n");
 958         printf("           determinable)\n");
 959         printf("  -P # : write a PADDING block of length # (goes after SEEKTABLE)\n");
 960         printf("         (# must be >= 0; default is -P-).  Note that the overall size in bytes\n");
 961         printf("         of the PADDING block will be # + 4 because of the metadata header.\n");
 962         printf("  -b # : specify blocksize in samples; default is 1152 for -l 0, else 4608;\n");
 963         printf("         must be 192/576/1152/2304/4608/256/512/1024/2048/4096/8192/16384/32768\n");
 964         printf("         (unless --lax is used)\n");
 965         printf("  -m   : try mid-side coding for each frame (stereo input only)\n");
 966         printf("  -M   : adaptive mid-side coding for all frames (stereo input only)\n");
 967         printf("  -0 .. -8 : fastest compression .. highest compression, default is -5\n");
 968         printf("             these are synonyms for other options:\n");
 969         printf("  -0   : synonymous with -l 0 -b 1152 -r 2,2\n");
 970         printf("  -1   : synonymous with -l 0 -b 1152 -M -r 2,2\n");
 971         printf("  -2   : synonymous with -l 0 -b 1152 -m -r 3\n");
 972         printf("  -3   : synonymous with -l 6 -b 4608 -r 3,3\n");
 973         printf("  -4   : synonymous with -l 8 -b 4608 -M -r 3,3\n");
 974         printf("  -5   : synonymous with -l 8 -b 4608 -m -r 3,3\n");
 975         printf("  -6   : synonymous with -l 8 -b 4608 -m -r 4\n");
 976         printf("  -7   : synonymous with -l 8 -b 4608 -m -e -r 6\n");
 977         printf("  -8   : synonymous with -l 12 -b 4608 -m -e -r 6\n");
 978         printf("  --fast, --best : synonymous with -0 and -8 respectively\n");
 979         printf("  -e   : do exhaustive model search (expensive!)\n");
 980         printf("  -E   : include escape coding in the entropy coder\n");
 981         printf("  -l # : specify max LPC order; 0 => use only fixed predictors\n");
 982         printf("  -p   : do exhaustive search of LP coefficient quantization (expensive!);\n");
 983         printf("         overrides -q, does nothing if using -l 0\n");
 984         printf("  -q # : specify precision in bits of quantized linear-predictor coefficients;\n");
 985         printf("         0 => let encoder decide (min is %u, default is -q 0)\n", FLAC__MIN_QLP_COEFF_PRECISION);
 986         printf("  -r [#,]# : [min,]max residual partition order (# is 0..16; min defaults to 0;\n");
 987         printf("         default is -r 0; above 4 doesn't usually help much)\n");
 988 #if 0
 989 @@@ removed because it doesnt work yet and is too dangerous for users
 990         printf("  -R # : Rice parameter search distance (# is 0..32; above 2 doesn't help much)\n");
 991 #endif
 992         printf("  -V   : verify a correct encoding by decoding the output in parallel and\n");
 993         printf("         comparing to the original\n");
 994         printf("  -S-, -P-, -m-, -M-, -e-, -E-, -p-, -V-, --delete-input-file-,%s --lax-,\n",
 995 #ifdef FLAC__HAS_OGG
 996                 " --ogg-,"
 997 #else
 998                 ""
 999 #endif
1000         );
1001         printf("  --sector-align- can all be used to turn off a particular option\n");
1002         printf("format options:\n");
1003         printf("  -fb | -fl : big-endian | little-endian byte order\n");
1004         printf("  -fc channels\n");
1005         printf("  -fp bits_per_sample\n");
1006         printf("  -fs sample_rate : in Hz\n");
1007         printf("  -fu : unsigned samples (default is signed)\n");
1008         printf("  -fr : force input to be treated as raw samples\n");
1009 }
1010
1011 void
1012 format_mistake(const char *infilename, const char *wrong, const char *right)
1013 {
1014         fprintf(stderr, "WARNING: %s is not a %s file; treating as a %s file\n", infilename, wrong, right);
1015 }
1016
1017 int encode_file(const char *infilename, const char *forced_outfilename, FLAC__bool is_last_file)
1018 {
1019         FILE *encode_infile;
1020         char outfilename[4096]; /* @@@ bad MAGIC NUMBER */
1021         char *p;
1022         FLAC__byte lookahead[12];
1023         unsigned lookahead_length = 0;
1024         FileFormat fmt= RAW;
1025         int retval;
1026         long infilesize;
1027         encode_options_t common_options;
1028
1029         if(0 == strcmp(infilename, "-")) {
1030                 infilesize = -1;
1031                 encode_infile = file__get_binary_stdin();
1032         }
1033         else {
1034                 infilesize = flac__file_get_filesize(infilename);
1035                 if(0 == (encode_infile = fopen(infilename, "rb"))) {
1036                         fprintf(stderr, "ERROR: can't open input file %s\n", infilename);
1037                         return 1;
1038                 }
1039         }
1040
1041         if(!option_values.force_raw_format) {
1042                 /* first set format based on name */
1043                 if(strlen(infilename) > 3 && 0 == strcasecmp(infilename+(strlen(infilename)-4), ".wav"))
1044                         fmt= WAV;
1045                 else if(strlen(infilename) > 3 && 0 == strcasecmp(infilename+(strlen(infilename)-4), ".aif"))
1046                         fmt= AIF;
1047                 else if(strlen(infilename) > 4 && 0 == strcasecmp(infilename+(strlen(infilename)-5), ".aiff"))
1048                         fmt= AIF;
1049
1050                 /* attempt to guess the file type based on the first 12 bytes */
1051                 if((lookahead_length = fread(lookahead, 1, 12, encode_infile)) < 12) {
1052                         if(fmt != RAW)
1053                                 format_mistake(infilename, fmt == AIF ? "AIFF" : "WAVE", "raw");
1054                         fmt= RAW;
1055                 }
1056                 else {
1057                         if(!strncmp(lookahead, "RIFF", 4) && !strncmp(lookahead+8, "WAVE", 4))
1058                                 fmt= WAV;
1059                         else if(!strncmp(lookahead, "FORM", 4) && !strncmp(lookahead+8, "AIFF", 4))
1060                                 fmt= AIF;
1061                         else {
1062                                 if(fmt != RAW)
1063                                         format_mistake(infilename, fmt == AIF ? "AIFF" : "WAVE", "raw");
1064                                 fmt= RAW;
1065                         }
1066                 }
1067         }
1068
1069         if(option_values.sector_align && fmt == RAW && infilesize < 0) {
1070                 fprintf(stderr, "ERROR: can't --sector-align when the input size is unknown\n");
1071                 return 1;
1072         }
1073
1074         if(fmt == RAW) {
1075                 if(option_values.format_is_big_endian < 0 || option_values.format_channels < 0 || option_values.format_bps < 0 || option_values.format_sample_rate < 0)
1076                         return usage_error("ERROR: for encoding a raw file you must specify { -fb or -fl }, -fc, -fp, and -fs\n");
1077         }
1078
1079         if(encode_infile == stdin || option_values.force_to_stdout)
1080                 strcpy(outfilename, "-");
1081         else {
1082                 const char *suffix = (option_values.use_ogg? ogg_suffix : flac_suffix);
1083                 strcpy(outfilename, option_values.output_prefix? option_values.output_prefix : "");
1084                 strcat(outfilename, infilename);
1085                 if(0 == (p = strrchr(outfilename, '.')))
1086                         strcat(outfilename, suffix);
1087                 else {
1088                         if(0 == strcmp(p, suffix)) {
1089                                 strcpy(p, "_new");
1090                                 strcat(p, suffix);
1091                         }
1092                         else
1093                                 strcpy(p, suffix);
1094                 }
1095         }
1096         if(0 == forced_outfilename)
1097                 forced_outfilename = outfilename;
1098         if(0 != option_values.cmdline_forced_outfilename)
1099                 forced_outfilename = option_values.cmdline_forced_outfilename;
1100
1101         common_options.verbose = option_values.verbose;
1102         common_options.skip = option_values.skip;
1103         common_options.verify = option_values.verify;
1104 #ifdef FLAC__HAS_OGG
1105         common_options.use_ogg = option_values.use_ogg;
1106 #endif
1107         common_options.lax = option_values.lax;
1108         common_options.do_mid_side = option_values.do_mid_side;
1109         common_options.loose_mid_side = option_values.loose_mid_side;
1110         common_options.do_exhaustive_model_search = option_values.do_exhaustive_model_search;
1111         common_options.do_escape_coding = option_values.do_escape_coding;
1112         common_options.do_qlp_coeff_prec_search = option_values.do_qlp_coeff_prec_search;
1113         common_options.min_residual_partition_order = option_values.min_residual_partition_order;
1114         common_options.max_residual_partition_order = option_values.max_residual_partition_order;
1115         common_options.rice_parameter_search_dist = option_values.rice_parameter_search_dist;
1116         common_options.max_lpc_order = option_values.max_lpc_order;
1117         common_options.blocksize = (unsigned)option_values.blocksize;
1118         common_options.qlp_coeff_precision = option_values.qlp_coeff_precision;
1119         common_options.padding = option_values.padding;
1120         common_options.requested_seek_points = option_values.requested_seek_points;
1121         common_options.num_requested_seek_points = option_values.num_requested_seek_points;
1122         common_options.is_last_file = is_last_file;
1123         common_options.align_reservoir = align_reservoir;
1124         common_options.align_reservoir_samples = &align_reservoir_samples;
1125         common_options.sector_align = option_values.sector_align;
1126
1127         if(fmt == RAW) {
1128                 raw_encode_options_t options;
1129
1130                 options.common = common_options;
1131                 options.is_big_endian = option_values.format_is_big_endian;
1132                 options.is_unsigned_samples = option_values.format_is_unsigned_samples;
1133                 options.channels = option_values.format_channels;
1134                 options.bps = option_values.format_bps;
1135                 options.sample_rate = option_values.format_sample_rate;
1136
1137                 retval = flac__encode_raw(encode_infile, infilesize, infilename, forced_outfilename, lookahead, lookahead_length, options);
1138         }
1139         else {
1140                 wav_encode_options_t options;
1141
1142                 options.common = common_options;
1143
1144                 if(fmt == AIF)
1145                         retval = flac__encode_aif(encode_infile, infilesize, infilename, forced_outfilename, lookahead, lookahead_length, options);
1146                 else
1147                         retval = flac__encode_wav(encode_infile, infilesize, infilename, forced_outfilename, lookahead, lookahead_length, options);
1148         }
1149
1150         if(retval == 0 && strcmp(infilename, "-")) {
1151                 if(strcmp(forced_outfilename, "-"))
1152                         flac__file_copy_metadata(infilename, forced_outfilename);
1153                 if(option_values.delete_input)
1154                         unlink(infilename);
1155         }
1156
1157         return retval;
1158 }
1159
1160 int decode_file(const char *infilename, const char *forced_outfilename)
1161 {
1162         static const char *suffixes[] = { ".wav", ".raw", ".ana" };
1163         char outfilename[4096]; /* @@@ bad MAGIC NUMBER */
1164         char *p;
1165         int retval;
1166         FLAC__bool treat_as_ogg = false;
1167         decode_options_t common_options;
1168
1169         if(!option_values.test_only && !option_values.analyze) {
1170                 if(option_values.force_raw_format && option_values.format_is_big_endian < 0)
1171                         return usage_error("ERROR: for decoding to a raw file you must specify -fb or -fl\n");
1172         }
1173
1174         if(0 == strcmp(infilename, "-") || option_values.force_to_stdout)
1175                 strcpy(outfilename, "-");
1176         else {
1177                 const char *suffix = suffixes[option_values.analyze? 2 : option_values.force_raw_format? 1 : 0];
1178                 strcpy(outfilename, option_values.output_prefix? option_values.output_prefix : "");
1179                 strcat(outfilename, infilename);
1180                 if(0 == (p = strrchr(outfilename, '.')))
1181                         strcat(outfilename, suffix);
1182                 else {
1183                         if(0 == strcmp(p, suffix)) {
1184                                 strcpy(p, "_new");
1185                                 strcat(p, suffix);
1186                         }
1187                         else
1188                                 strcpy(p, suffix);
1189                 }
1190         }
1191         if(0 == forced_outfilename)
1192                 forced_outfilename = outfilename;
1193         if(0 != option_values.cmdline_forced_outfilename)
1194                 forced_outfilename = option_values.cmdline_forced_outfilename;
1195
1196         if(option_values.use_ogg)
1197                 treat_as_ogg = true;
1198         else if(0 == strcasecmp(infilename+(strlen(infilename)-4), ".ogg"))
1199                 treat_as_ogg = true;
1200         else
1201                 treat_as_ogg = false;
1202
1203 #ifndef FLAC__HAS_OGG
1204         if(treat_as_ogg) {
1205                 fprintf(stderr, "%s: Ogg support has not been built into this copy of flac\n", infilename);
1206                 return 1;
1207         }
1208 #endif
1209
1210         common_options.verbose = option_values.verbose;
1211         common_options.continue_through_decode_errors = option_values.continue_through_decode_errors;
1212 #ifdef FLAC__HAS_OGG
1213         common_options.is_ogg = treat_as_ogg;
1214 #endif
1215         common_options.skip = option_values.skip;
1216
1217         if(!option_values.force_raw_format) {
1218                 wav_decode_options_t options;
1219
1220                 options.common = common_options;
1221
1222                 retval = flac__decode_wav(infilename, option_values.test_only? 0 : forced_outfilename, option_values.analyze, option_values.aopts, options);
1223         }
1224         else {
1225                 raw_decode_options_t options;
1226
1227                 options.common = common_options;
1228                 options.is_big_endian = option_values.format_is_big_endian;
1229                 options.is_unsigned_samples = option_values.format_is_unsigned_samples;
1230
1231                 retval = flac__decode_raw(infilename, option_values.test_only? 0 : forced_outfilename, option_values.analyze, option_values.aopts, options);
1232         }
1233
1234         if(retval == 0 && strcmp(infilename, "-")) {
1235                 if(strcmp(forced_outfilename, "-"))
1236                         flac__file_copy_metadata(infilename, forced_outfilename);
1237                 if(option_values.delete_input)
1238                         unlink(infilename);
1239         }
1240
1241         return retval;
1242 }
1243
1244 void die(const char *message)
1245 {
1246         FLAC__ASSERT(0 != message);
1247         fprintf(stderr, "ERROR: %s\n", message);
1248         exit(1);
1249 }
1250
1251 char *local_strdup(const char *source)
1252 {
1253         char *ret;
1254         FLAC__ASSERT(0 != source);
1255         if(0 == (ret = strdup(source)))
1256                 die("out of memory during strdup()");
1257         return ret;
1258 }