src/flac/main.c

   1 /* flac - Command-line FLAC encoder/decoder
   2  * Copyright (C) 2000,2001,2002,2003,2004,2005,2006  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 #if HAVE_CONFIG_H
  20 #  include <config.h>
  21 #endif
  22
  23 #include <ctype.h>
  24 #include <errno.h>
  25 #include <locale.h>
  26 #include <stdarg.h>
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <time.h>
  31
  32 #if !defined _MSC_VER && !defined __MINGW32__
  33 /* unlink is in stdio.h in VC++ */
  34 #include <unistd.h> /* for unlink() */
  35 #endif
  36 #include "FLAC/all.h"
  37 #include "share/grabbag.h"
  38 #include "analyze.h"
  39 #include "decode.h"
  40 #include "encode.h"
  41 #include "local_string_utils.h" /* for flac__strlcat() and flac__strlcpy() */
  42 #include "utils.h"
  43 #include "vorbiscomment.h"
  44
  45 #if defined _MSC_VER || defined __MINGW32__ || defined __EMX__
  46 #define FLAC__STRCASECMP stricmp
  47 #else
  48 #define FLAC__STRCASECMP strcasecmp
  49 #endif
  50
  51 #if 0
  52 /*[JEC] was:#if HAVE_GETOPT_LONG*/
  53 /*[JEC] see flac/include/share/getopt.h as to why the change */
  54 #  include <getopt.h>
  55 #else
  56 #  include "share/getopt.h"
  57 #endif
  58
  59 typedef enum { RAW, WAV, AIF, FLAC } FileFormat;
  60
  61 static int do_it();
  62
  63 static FLAC__bool init_options();
  64 static int parse_options(int argc, char *argv[]);
  65 static int parse_option(int short_option, const char *long_option, const char *option_argument);
  66 static void free_options();
  67
  68 static int usage_error(const char *message, ...);
  69 static void short_usage();
  70 static void show_version();
  71 static void show_help();
  72 static void show_explain();
  73 static void format_mistake(const char *infilename, const char *wrong, const char *right);
  74
  75 static int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file);
  76 static int decode_file(const char *infilename);
  77
  78 static const char *get_encoded_outfilename(const char *infilename);
  79 static const char *get_decoded_outfilename(const char *infilename);
  80 static const char *get_outfilename(const char *infilename, const char *suffix);
  81
  82 static void die(const char *message);
  83 static char *local_strdup(const char *source);
  84
  85
  86 /*
  87  * share__getopt format struct; note that for long options with no
  88  * short option equivalent we just set the 'val' field to 0.
  89  */
  90 static struct share__option long_options_[] = {
  91         /*
  92          * general options
  93          */
  94         { "help"             , share__no_argument, 0, 'h' },
  95         { "explain"          , share__no_argument, 0, 'H' },
  96         { "version"          , share__no_argument, 0, 'v' },
  97         { "decode"           , share__no_argument, 0, 'd' },
  98         { "analyze"          , share__no_argument, 0, 'a' },
  99         { "test"             , share__no_argument, 0, 't' },
 100         { "stdout"           , share__no_argument, 0, 'c' },
 101         { "silent"           , share__no_argument, 0, 's' },
 102         { "totally-silent"   , share__no_argument, 0, 0 },
 103         { "force"            , share__no_argument, 0, 'f' },
 104         { "delete-input-file", share__no_argument, 0, 0 },
 105         { "output-prefix"    , share__required_argument, 0, 0 },
 106         { "output-name"      , share__required_argument, 0, 'o' },
 107         { "skip"             , share__required_argument, 0, 0 },
 108         { "until"            , share__required_argument, 0, 0 },
 109
 110         /*
 111          * decoding options
 112          */
 113         { "decode-through-errors", share__no_argument, 0, 'F' },
 114         { "cue"                  , share__required_argument, 0, 0 },
 115         { "apply-replaygain-which-is-not-lossless", share__optional_argument, 0, 0 }, /* undocumented */
 116
 117         /*
 118          * encoding options
 119          */
 120         { "cuesheet"                  , share__required_argument, 0, 0 },
 121         { "no-cued-seekpoints"        , share__no_argument, 0, 0 },
 122         { "picture"                   , share__required_argument, 0, 0 },
 123         { "tag"                       , share__required_argument, 0, 'T' },
 124         { "tag-from-file"             , share__required_argument, 0, 0 },
 125         { "compression-level-0"       , share__no_argument, 0, '0' },
 126         { "compression-level-1"       , share__no_argument, 0, '1' },
 127         { "compression-level-2"       , share__no_argument, 0, '2' },
 128         { "compression-level-3"       , share__no_argument, 0, '3' },
 129         { "compression-level-4"       , share__no_argument, 0, '4' },
 130         { "compression-level-5"       , share__no_argument, 0, '5' },
 131         { "compression-level-6"       , share__no_argument, 0, '6' },
 132         { "compression-level-7"       , share__no_argument, 0, '7' },
 133         { "compression-level-8"       , share__no_argument, 0, '8' },
 134         { "compression-level-9"       , share__no_argument, 0, '9' },
 135         { "best"                      , share__no_argument, 0, '8' },
 136         { "fast"                      , share__no_argument, 0, '0' },
 137         { "super-secret-totally-impractical-compression-level", share__no_argument, 0, 0 },
 138         { "verify"                    , share__no_argument, 0, 'V' },
 139         { "force-aiff-format"         , share__no_argument, 0, 0 },
 140         { "force-raw-format"          , share__no_argument, 0, 0 },
 141         { "lax"                       , share__no_argument, 0, 0 },
 142         { "replay-gain"               , share__no_argument, 0, 0 },
 143         { "sector-align"              , share__no_argument, 0, 0 },
 144         { "seekpoint"                 , share__required_argument, 0, 'S' },
 145         { "padding"                   , share__required_argument, 0, 'P' },
 146 #ifdef FLAC__HAS_OGG
 147         { "ogg"                       , share__no_argument, 0, 0 },
 148         { "serial-number"             , share__required_argument, 0, 0 },
 149 #endif
 150         { "blocksize"                 , share__required_argument, 0, 'b' },
 151         { "exhaustive-model-search"   , share__no_argument, 0, 'e' },
 152         { "max-lpc-order"             , share__required_argument, 0, 'l' },
 153         { "apodization"               , share__required_argument, 0, 'A' },
 154         { "mid-side"                  , share__no_argument, 0, 'm' },
 155         { "adaptive-mid-side"         , share__no_argument, 0, 'M' },
 156         { "qlp-coeff-precision-search", share__no_argument, 0, 'p' },
 157         { "qlp-coeff-precision"       , share__required_argument, 0, 'q' },
 158         { "rice-partition-order"      , share__required_argument, 0, 'r' },
 159         { "endian"                    , share__required_argument, 0, 0 },
 160         { "channels"                  , share__required_argument, 0, 0 },
 161         { "bps"                       , share__required_argument, 0, 0 },
 162         { "sample-rate"               , share__required_argument, 0, 0 },
 163         { "sign"                      , share__required_argument, 0, 0 },
 164         { "input-size"                , share__required_argument, 0, 0 },
 165
 166         /*
 167          * analysis options
 168          */
 169         { "residual-gnuplot", share__no_argument, 0, 0 },
 170         { "residual-text", share__no_argument, 0, 0 },
 171
 172         /*
 173          * negatives
 174          */
 175         { "no-decode-through-errors"  , share__no_argument, 0, 0 },
 176         { "no-silent"                 , share__no_argument, 0, 0 },
 177         { "no-force"                  , share__no_argument, 0, 0 },
 178         { "no-seektable"              , share__no_argument, 0, 0 },
 179         { "no-delete-input-file"      , share__no_argument, 0, 0 },
 180         { "no-replay-gain"            , share__no_argument, 0, 0 },
 181         { "no-sector-align"           , share__no_argument, 0, 0 },
 182         { "no-lax"                    , share__no_argument, 0, 0 },
 183 #ifdef FLAC__HAS_OGG
 184         { "no-ogg"                    , share__no_argument, 0, 0 },
 185 #endif
 186         { "no-exhaustive-model-search", share__no_argument, 0, 0 },
 187         { "no-mid-side"               , share__no_argument, 0, 0 },
 188         { "no-adaptive-mid-side"      , share__no_argument, 0, 0 },
 189         { "no-qlp-coeff-prec-search"  , share__no_argument, 0, 0 },
 190         { "no-padding"                , share__no_argument, 0, 0 },
 191         { "no-verify"                 , share__no_argument, 0, 0 },
 192         { "no-residual-gnuplot"       , share__no_argument, 0, 0 },
 193         { "no-residual-text"          , share__no_argument, 0, 0 },
 194         /*
 195          * undocumented debugging options for the test suite
 196          */
 197         { "disable-constant-subframes", share__no_argument, 0, 0 },
 198         { "disable-fixed-subframes"   , share__no_argument, 0, 0 },
 199         { "disable-verbatim-subframes", share__no_argument, 0, 0 },
 200
 201         {0, 0, 0, 0}
 202 };
 203
 204
 205 /*
 206  * global to hold command-line option values
 207  */
 208
 209 static struct {
 210         FLAC__bool show_help;
 211         FLAC__bool show_explain;
 212         FLAC__bool show_version;
 213         FLAC__bool mode_decode;
 214         FLAC__bool verify;
 215         FLAC__bool force_file_overwrite;
 216         FLAC__bool continue_through_decode_errors;
 217         replaygain_synthesis_spec_t replaygain_synthesis_spec;
 218         FLAC__bool lax;
 219         FLAC__bool test_only;
 220         FLAC__bool analyze;
 221         FLAC__bool use_ogg;
 222         FLAC__bool has_serial_number; /* true iff --serial-number was used */
 223         long serial_number; /* this is the Ogg serial number and is unused for native FLAC */
 224         FLAC__bool do_mid_side;
 225         FLAC__bool loose_mid_side;
 226         FLAC__bool do_exhaustive_model_search;
 227         FLAC__bool do_escape_coding;
 228         FLAC__bool do_qlp_coeff_prec_search;
 229         FLAC__bool force_to_stdout;
 230         FLAC__bool force_aiff_format;
 231         FLAC__bool force_raw_format;
 232         FLAC__bool delete_input;
 233         FLAC__bool replay_gain;
 234         FLAC__bool sector_align;
 235         const char *cmdline_forced_outfilename;
 236         const char *output_prefix;
 237         analysis_options aopts;
 238         int padding; /* -1 => no -P options were given, 0 => -P- was given, else -P value */
 239         char apodizations[1000]; /* bad MAGIC NUMBER but buffer overflow is checked */
 240         unsigned max_lpc_order;
 241         unsigned qlp_coeff_precision;
 242         const char *skip_specification;
 243         const char *until_specification;
 244         const char *cue_specification;
 245         int format_is_big_endian;
 246         int format_is_unsigned_samples;
 247         int format_channels;
 248         int format_bps;
 249         int format_sample_rate;
 250         off_t format_input_size;
 251         int blocksize;
 252         int min_residual_partition_order;
 253         int max_residual_partition_order;
 254         int rice_parameter_search_dist;
 255         char requested_seek_points[5000]; /* bad MAGIC NUMBER but buffer overflow is checked */
 256         int num_requested_seek_points; /* -1 => no -S options were given, 0 => -S- was given */
 257         const char *cuesheet_filename;
 258         FLAC__bool cued_seekpoints;
 259
 260         unsigned num_files;
 261         char **filenames;
 262
 263         FLAC__StreamMetadata *vorbis_comment;
 264         FLAC__StreamMetadata *pictures[64];
 265         unsigned num_pictures;
 266
 267         struct {
 268                 FLAC__bool disable_constant_subframes;
 269                 FLAC__bool disable_fixed_subframes;
 270                 FLAC__bool disable_verbatim_subframes;
 271         } debug;
 272 } option_values;
 273
 274
 275 /*
 276  * miscellaneous globals
 277  */
 278
 279 static FLAC__int32 align_reservoir_0[588], align_reservoir_1[588]; /* for carrying over samples from --sector-align */
 280 static FLAC__int32 *align_reservoir[2] = { align_reservoir_0, align_reservoir_1 };
 281 static unsigned align_reservoir_samples = 0; /* 0 .. 587 */
 282
 283
 284 int main(int argc, char *argv[])
 285 {
 286         int retval = 0;
 287
 288 #ifdef __EMX__
 289         _response(&argc, &argv);
 290         _wildcard(&argc, &argv);
 291 #endif
 292
 293         srand(time(0));
 294         setlocale(LC_ALL, "");
 295         if(!init_options()) {
 296                 flac__utils_printf(stderr, 1, "ERROR: allocating memory\n");
 297                 retval = 1;
 298         }
 299         else {
 300                 if((retval = parse_options(argc, argv)) == 0)
 301                         retval = do_it();
 302         }
 303
 304         free_options();
 305
 306         return retval;
 307 }
 308
 309 int do_it()
 310 {
 311         int retval = 0;
 312
 313         if(option_values.show_version) {
 314                 show_version();
 315                 return 0;
 316         }
 317         else if(option_values.show_explain) {
 318                 show_explain();
 319                 return 0;
 320         }
 321         else if(option_values.show_help) {
 322                 show_help();
 323                 return 0;
 324         }
 325         else {
 326                 if(option_values.num_files == 0) {
 327                         if(flac__utils_verbosity_ >= 1)
 328                                 short_usage();
 329                         return 0;
 330                 }
 331
 332                 /*
 333                  * tweak options; validate the values
 334                  */
 335                 if(!option_values.mode_decode) {
 336                         if(option_values.blocksize < 0) {
 337                                 if(option_values.max_lpc_order == 0)
 338                                         option_values.blocksize = 1152;
 339                                 else
 340                                         option_values.blocksize = 4608;
 341                         }
 342                         if(option_values.max_residual_partition_order < 0) {
 343                                 if(option_values.blocksize <= 1152)
 344                                         option_values.max_residual_partition_order = 2;
 345                                 else if(option_values.blocksize <= 2304)
 346                                         option_values.max_residual_partition_order = 3;
 347                                 else if(option_values.blocksize <= 4608)
 348                                         option_values.max_residual_partition_order = 3;
 349                                 else
 350                                         option_values.max_residual_partition_order = 4;
 351                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order;
 352                         }
 353                         if(option_values.rice_parameter_search_dist < 0) {
 354                                 option_values.rice_parameter_search_dist = 0;
 355                         }
 356                         if(0 != option_values.cue_specification)
 357                                 return usage_error("ERROR: --cue is not allowed in test mode\n");
 358                 }
 359                 else {
 360                         if(option_values.test_only) {
 361                                 if(0 != option_values.skip_specification)
 362                                         return usage_error("ERROR: --skip is not allowed in test mode\n");
 363                                 if(0 != option_values.until_specification)
 364                                         return usage_error("ERROR: --until is not allowed in test mode\n");
 365                                 if(0 != option_values.cue_specification)
 366                                         return usage_error("ERROR: --cue is not allowed in test mode\n");
 367                                 if(0 != option_values.analyze)
 368                                         return usage_error("ERROR: analysis mode (-a/--analyze) and test mode (-t/--test) cannot be used together\n");
 369                         }
 370                 }
 371
 372                 if(0 != option_values.cue_specification && (0 != option_values.skip_specification || 0 != option_values.until_specification))
 373                         return usage_error("ERROR: --cue may not be combined with --skip or --until\n");
 374
 375                 FLAC__ASSERT(option_values.blocksize >= 0 || option_values.mode_decode);
 376
 377                 if(option_values.format_channels >= 0) {
 378                         if(option_values.format_channels == 0 || (unsigned)option_values.format_channels > FLAC__MAX_CHANNELS)
 379                                 return usage_error("ERROR: invalid number of channels '%u', must be > 0 and <= %u\n", option_values.format_channels, FLAC__MAX_CHANNELS);
 380                 }
 381                 if(option_values.format_bps >= 0) {
 382                         if(option_values.format_bps != 8 && option_values.format_bps != 16 && option_values.format_bps != 24)
 383                                 return usage_error("ERROR: invalid bits per sample '%u' (must be 8/16/24)\n", option_values.format_bps);
 384                 }
 385                 if(option_values.format_sample_rate >= 0) {
 386                         if(!FLAC__format_sample_rate_is_valid(option_values.format_sample_rate))
 387                                 return usage_error("ERROR: invalid sample rate '%u', must be > 0 and <= %u\n", option_values.format_sample_rate, FLAC__MAX_SAMPLE_RATE);
 388                 }
 389                 if(option_values.force_raw_format && option_values.force_aiff_format)
 390                         return usage_error("ERROR: only one of --force-raw-format and --force-aiff-format allowed\n");
 391                 if(option_values.mode_decode) {
 392                         if(!option_values.force_raw_format) {
 393                                 if(option_values.format_is_big_endian >= 0)
 394                                         return usage_error("ERROR: --endian only allowed with --force-raw-format\n");
 395                                 if(option_values.format_is_unsigned_samples >= 0)
 396                                         return usage_error("ERROR: --sign only allowed with --force-raw-format\n");
 397                         }
 398                         if(option_values.format_channels >= 0)
 399                                 return usage_error("ERROR: --channels not allowed with --decode\n");
 400                         if(option_values.format_bps >= 0)
 401                                 return usage_error("ERROR: --bps not allowed with --decode\n");
 402                         if(option_values.format_sample_rate >= 0)
 403                                 return usage_error("ERROR: --sample-rate not allowed with --decode\n");
 404                 }
 405                 if(!option_values.mode_decode && ((unsigned)option_values.blocksize < FLAC__MIN_BLOCK_SIZE || (unsigned)option_values.blocksize > FLAC__MAX_BLOCK_SIZE)) {
 406                         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);
 407                 }
 408                 if(option_values.qlp_coeff_precision > 0 && option_values.qlp_coeff_precision < FLAC__MIN_QLP_COEFF_PRECISION) {
 409                         return usage_error("ERROR: invalid value '%u' for qlp coeff precision, must be 0 or >= %u\n", option_values.qlp_coeff_precision, FLAC__MIN_QLP_COEFF_PRECISION);
 410                 }
 411
 412                 if(option_values.sector_align) {
 413                         if(option_values.mode_decode)
 414                                 return usage_error("ERROR: --sector-align only allowed for encoding\n");
 415                         if(0 != option_values.skip_specification)
 416                                 return usage_error("ERROR: --sector-align not allowed with --skip\n");
 417                         if(0 != option_values.until_specification)
 418                                 return usage_error("ERROR: --sector-align not allowed with --until\n");
 419                         if(0 != option_values.cue_specification)
 420                                 return usage_error("ERROR: --sector-align not allowed with --cue\n");
 421                         if(option_values.format_channels >= 0 && option_values.format_channels != 2)
 422                                 return usage_error("ERROR: --sector-align can only be done with stereo input\n");
 423                         if(option_values.format_bps >= 0 && option_values.format_bps != 16)
 424                                 return usage_error("ERROR: --sector-align can only be done with 16-bit samples\n");
 425                         if(option_values.format_sample_rate >= 0 && option_values.format_sample_rate != 44100)
 426                                 return usage_error("ERROR: --sector-align can only be done with a sample rate of 44100\n");
 427                 }
 428                 if(option_values.replay_gain) {
 429                         if(option_values.force_to_stdout)
 430                                 return usage_error("ERROR: --replay-gain not allowed with -c/--stdout\n");
 431                         if(option_values.mode_decode)
 432                                 return usage_error("ERROR: --replay-gain only allowed for encoding\n");
 433                         if(option_values.format_channels > 2)
 434                                 return usage_error("ERROR: --replay-gain can only be done with mono/stereo input\n");
 435                         if(option_values.format_sample_rate >= 0 && !grabbag__replaygain_is_valid_sample_frequency(option_values.format_sample_rate))
 436                                 return usage_error("ERROR: invalid sample rate used with --replay-gain\n");
 437                         /*
 438                          * We want to reserve padding space for the ReplayGain
 439                          * tags that we will set later, to avoid rewriting the
 440                          * whole file.
 441                          */
 442                         if(option_values.padding <= 0) {
 443                                 flac__utils_printf(stderr, 1, "NOTE: --replay-gain may leave a small PADDING block even with --no-padding\n");
 444                                 option_values.padding = GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
 445                         }
 446                         else {
 447                                 option_values.padding += GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
 448                         }
 449                 }
 450                 if(option_values.num_files > 1 && option_values.cmdline_forced_outfilename) {
 451                         return usage_error("ERROR: -o/--output-name cannot be used with multiple files\n");
 452                 }
 453                 if(option_values.cmdline_forced_outfilename && option_values.output_prefix) {
 454                         return usage_error("ERROR: --output-prefix conflicts with -o/--output-name\n");
 455                 }
 456                 if(!option_values.mode_decode && 0 != option_values.cuesheet_filename && option_values.num_files > 1) {
 457                         return usage_error("ERROR: --cuesheet cannot be used when encoding multiple files\n");
 458                 }
 459         }
 460
 461         flac__utils_printf(stderr, 2, "\n");
 462         flac__utils_printf(stderr, 2, "flac %s, Copyright (C) 2000,2001,2002,2003,2004,2005,2006  Josh Coalson\n", FLAC__VERSION_STRING);
 463         flac__utils_printf(stderr, 2, "flac comes with ABSOLUTELY NO WARRANTY.  This is free software, and you are\n");
 464         flac__utils_printf(stderr, 2, "welcome to redistribute it under certain conditions.  Type `flac' for details.\n\n");
 465
 466         if(!option_values.mode_decode) {
 467                 char padopt[16];
 468                 if(option_values.padding == 0)
 469                         strcpy(padopt, "-");
 470                 else
 471                         sprintf(padopt, " %d", option_values.padding > 0? option_values.padding : FLAC_ENCODE__DEFAULT_PADDING);
 472                 flac__utils_printf(stderr, 2,
 473                         "options:%s%s%s%s -P%s -b %u%s -l %u%s%s%s -q %u -r %u,%u%s\n",
 474                         option_values.delete_input?" --delete-input-file":"",
 475                         option_values.sector_align?" --sector-align":"",
 476                         option_values.use_ogg?" --ogg":"",
 477                         option_values.lax?" --lax":"",
 478                         padopt,
 479                         (unsigned)option_values.blocksize,
 480                         option_values.loose_mid_side?" -M":option_values.do_mid_side?" -m":"",
 481                         option_values.max_lpc_order,
 482                         option_values.do_exhaustive_model_search?" -e":"",
 483                         option_values.do_escape_coding?" -E":"",
 484                         option_values.do_qlp_coeff_prec_search?" -p":"",
 485                         option_values.qlp_coeff_precision,
 486                         (unsigned)option_values.min_residual_partition_order,
 487                         (unsigned)option_values.max_residual_partition_order,
 488                         option_values.verify? " -V":""
 489                 );
 490         }
 491
 492         if(option_values.mode_decode) {
 493                 FLAC__bool first = true;
 494
 495                 if(option_values.num_files == 0) {
 496                         retval = decode_file("-");
 497                 }
 498                 else {
 499                         unsigned i;
 500                         if(option_values.num_files > 1)
 501                                 option_values.cmdline_forced_outfilename = 0;
 502                         for(i = 0, retval = 0; i < option_values.num_files; i++) {
 503                                 if(0 == strcmp(option_values.filenames[i], "-") && !first)
 504                                         continue;
 505                                 retval |= decode_file(option_values.filenames[i]);
 506                                 first = false;
 507                         }
 508                 }
 509         }
 510         else { /* encode */
 511                 FLAC__bool first = true;
 512
 513                 if(option_values.num_files == 0) {
 514                         retval = encode_file("-", first, true);
 515                 }
 516                 else {
 517                         unsigned i;
 518                         if(option_values.num_files > 1)
 519                                 option_values.cmdline_forced_outfilename = 0;
 520                         for(i = 0, retval = 0; i < option_values.num_files; i++) {
 521                                 if(0 == strcmp(option_values.filenames[i], "-") && !first)
 522                                         continue;
 523                                 retval |= encode_file(option_values.filenames[i], first, i == (option_values.num_files-1));
 524                                 first = false;
 525                         }
 526                         if(option_values.replay_gain && retval == 0) {
 527                                 float album_gain, album_peak;
 528                                 grabbag__replaygain_get_album(&album_gain, &album_peak);
 529                                 for(i = 0; i < option_values.num_files; i++) {
 530                                         const char *error, *outfilename = get_encoded_outfilename(option_values.filenames[i]);
 531                                         if(0 == outfilename) {
 532                                                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", option_values.filenames[i]);
 533                                                 return 1;
 534                                         }
 535                                         if(0 == strcmp(option_values.filenames[i], "-")) {
 536                                                 FLAC__ASSERT(0);
 537                                                 /* double protection */
 538                                                 flac__utils_printf(stderr, 1, "internal error\n");
 539                                                 return 2;
 540                                         }
 541                                         if(0 != (error = grabbag__replaygain_store_to_file_album(outfilename, album_gain, album_peak, /*preserve_modtime=*/true))) {
 542                                                 flac__utils_printf(stderr, 1, "%s: ERROR writing ReplayGain album tags (%s)\n", outfilename, error);
 543                                                 retval = 1;
 544                                         }
 545                                 }
 546                         }
 547                 }
 548         }
 549
 550         return retval;
 551 }
 552
 553 FLAC__bool init_options()
 554 {
 555         option_values.show_help = false;
 556         option_values.show_explain = false;
 557         option_values.mode_decode = false;
 558         option_values.verify = false;
 559         option_values.force_file_overwrite = false;
 560         option_values.continue_through_decode_errors = false;
 561         option_values.replaygain_synthesis_spec.apply = false;
 562         option_values.replaygain_synthesis_spec.use_album_gain = true;
 563         option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__HARD;
 564         option_values.replaygain_synthesis_spec.noise_shaping = NOISE_SHAPING_LOW;
 565         option_values.replaygain_synthesis_spec.preamp = 0.0;
 566         option_values.lax = false;
 567         option_values.test_only = false;
 568         option_values.analyze = false;
 569         option_values.use_ogg = false;
 570         option_values.has_serial_number = false;
 571         option_values.serial_number = 0;
 572         option_values.do_mid_side = true;
 573         option_values.loose_mid_side = false;
 574         option_values.do_exhaustive_model_search = false;
 575         option_values.do_escape_coding = false;
 576         option_values.do_qlp_coeff_prec_search = false;
 577         option_values.force_to_stdout = false;
 578         option_values.force_aiff_format = false;
 579         option_values.force_raw_format = false;
 580         option_values.delete_input = false;
 581         option_values.replay_gain = false;
 582         option_values.sector_align = false;
 583         option_values.cmdline_forced_outfilename = 0;
 584         option_values.output_prefix = 0;
 585         option_values.aopts.do_residual_text = false;
 586         option_values.aopts.do_residual_gnuplot = false;
 587         option_values.padding = -1;
 588         option_values.apodizations[0] = '\0';
 589         option_values.max_lpc_order = 8;
 590         option_values.qlp_coeff_precision = 0;
 591         option_values.skip_specification = 0;
 592         option_values.until_specification = 0;
 593         option_values.cue_specification = 0;
 594         option_values.format_is_big_endian = -1;
 595         option_values.format_is_unsigned_samples = -1;
 596         option_values.format_channels = -1;
 597         option_values.format_bps = -1;
 598         option_values.format_sample_rate = -1;
 599         option_values.format_input_size = (off_t)(-1);
 600         option_values.blocksize = -1;
 601         option_values.min_residual_partition_order = -1;
 602         option_values.max_residual_partition_order = -1;
 603         option_values.rice_parameter_search_dist = -1;
 604         option_values.requested_seek_points[0] = '\0';
 605         option_values.num_requested_seek_points = -1;
 606         option_values.cuesheet_filename = 0;
 607         option_values.cued_seekpoints = true;
 608
 609         option_values.num_files = 0;
 610         option_values.filenames = 0;
 611
 612         if(0 == (option_values.vorbis_comment = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT)))
 613                 return false;
 614         option_values.num_pictures = 0;
 615
 616         option_values.debug.disable_constant_subframes = false;
 617         option_values.debug.disable_fixed_subframes = false;
 618         option_values.debug.disable_verbatim_subframes = false;
 619
 620         return true;
 621 }
 622
 623 int parse_options(int argc, char *argv[])
 624 {
 625         int short_option;
 626         int option_index = 1;
 627         FLAC__bool had_error = false;
 628         const char *short_opts = "0123456789aA:b:cdefFhHl:mMo:pP:q:r:sS:tT:vV";
 629
 630         while ((short_option = share__getopt_long(argc, argv, short_opts, long_options_, &option_index)) != -1) {
 631                 switch (short_option) {
 632                         case 0: /* long option with no equivalent short option */
 633                                 had_error |= (parse_option(short_option, long_options_[option_index].name, share__optarg) != 0);
 634                                 break;
 635                         case '?':
 636                         case ':':
 637                                 had_error = true;
 638                                 break;
 639                         default: /* short option */
 640                                 had_error |= (parse_option(short_option, 0, share__optarg) != 0);
 641                                 break;
 642                 }
 643         }
 644
 645         if(had_error) {
 646                 return 1;
 647         }
 648
 649         FLAC__ASSERT(share__optind <= argc);
 650
 651         option_values.num_files = argc - share__optind;
 652
 653         if(option_values.num_files > 0) {
 654                 unsigned i = 0;
 655                 if(0 == (option_values.filenames = (char**)malloc(sizeof(char*) * option_values.num_files)))
 656                         die("out of memory allocating space for file names list");
 657                 while(share__optind < argc)
 658                         option_values.filenames[i++] = local_strdup(argv[share__optind++]);
 659         }
 660
 661         return 0;
 662 }
 663
 664 int parse_option(int short_option, const char *long_option, const char *option_argument)
 665 {
 666         const char *violation;
 667         char *p;
 668
 669         if(short_option == 0) {
 670                 FLAC__ASSERT(0 != long_option);
 671                 if(0 == strcmp(long_option, "totally-silent")) {
 672                         flac__utils_verbosity_ = 0;
 673                 }
 674                 else if(0 == strcmp(long_option, "delete-input-file")) {
 675                         option_values.delete_input = true;
 676                 }
 677                 else if(0 == strcmp(long_option, "output-prefix")) {
 678                         FLAC__ASSERT(0 != option_argument);
 679                         option_values.output_prefix = option_argument;
 680                 }
 681                 else if(0 == strcmp(long_option, "skip")) {
 682                         FLAC__ASSERT(0 != option_argument);
 683                         option_values.skip_specification = option_argument;
 684                 }
 685                 else if(0 == strcmp(long_option, "until")) {
 686                         FLAC__ASSERT(0 != option_argument);
 687                         option_values.until_specification = option_argument;
 688                 }
 689                 else if(0 == strcmp(long_option, "input-size")) {
 690                         FLAC__ASSERT(0 != option_argument);
 691                         {
 692                                 char *end;
 693 #ifdef _MSC_VER
 694                                 FLAC__int64 i;
 695                                 i = strtol(option_argument, &end, 10); /* [2G limit] */
 696 #else
 697                                 long long i;
 698                                 i = strtoll(option_argument, &end, 10);
 699 #endif
 700                                 if(0 == strlen(option_argument) || *end)
 701                                         return usage_error("ERROR: --%s must be a number\n", long_option);
 702                                 option_values.format_input_size = (off_t)i;
 703                                 if(option_values.format_input_size != i) /* check if off_t is smaller than long long */
 704                                         return usage_error("ERROR: --%s too large; this flac does not support filesizes over 2GB\n", long_option);
 705                                 if(option_values.format_input_size <= 0)
 706                                         return usage_error("ERROR: --%s must be > 0\n", long_option);
 707                         }
 708                 }
 709                 else if(0 == strcmp(long_option, "cue")) {
 710                         FLAC__ASSERT(0 != option_argument);
 711                         option_values.cue_specification = option_argument;
 712                 }
 713                 else if(0 == strcmp(long_option, "apply-replaygain-which-is-not-lossless")) {
 714                         option_values.replaygain_synthesis_spec.apply = true;
 715                         if (0 != option_argument) {
 716                                 char *p;
 717                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__NONE;
 718                                 option_values.replaygain_synthesis_spec.noise_shaping = NOISE_SHAPING_NONE;
 719                                 option_values.replaygain_synthesis_spec.preamp = strtod(option_argument, &p);
 720                                 for ( ; *p; p++) {
 721                                         if (*p == 'a')
 722                                                 option_values.replaygain_synthesis_spec.use_album_gain = true;
 723                                         else if (*p == 't')
 724                                                 option_values.replaygain_synthesis_spec.use_album_gain = false;
 725                                         else if (*p == 'l')
 726                                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__PEAK;
 727                                         else if (*p == 'L')
 728                                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__HARD;
 729                                         else if (*p == 'n' && p[1] >= '0' && p[1] <= '3') {
 730                                                 option_values.replaygain_synthesis_spec.noise_shaping = p[1] - '0';
 731                                                 p++;
 732                                         }
 733                                         else
 734                                                 return usage_error("ERROR: bad specification string \"%s\" for --%s\n", option_argument, long_option);
 735                                 }
 736                         }
 737                 }
 738                 else if(0 == strcmp(long_option, "cuesheet")) {
 739                         FLAC__ASSERT(0 != option_argument);
 740                         option_values.cuesheet_filename = option_argument;
 741                 }
 742                 else if(0 == strcmp(long_option, "picture")) {
 743                         const unsigned max_pictures = sizeof(option_values.pictures)/sizeof(option_values.pictures[0]);
 744                         FLAC__ASSERT(0 != option_argument);
 745                         if(option_values.num_pictures >= max_pictures)
 746                                 return usage_error("ERROR: too many --picture arguments, only %u allowed\n", max_pictures);
 747                         if(0 == (option_values.pictures[option_values.num_pictures] = grabbag__picture_parse_specification(option_argument, &violation)))
 748                                 return usage_error("ERROR: (--picture) %s\n", violation);
 749                         option_values.num_pictures++;
 750                 }
 751                 else if(0 == strcmp(long_option, "tag-from-file")) {
 752                         FLAC__ASSERT(0 != option_argument);
 753                         if(!flac__vorbiscomment_add(option_values.vorbis_comment, option_argument, /*value_from_file=*/true, &violation))
 754                                 return usage_error("ERROR: (--tag-from-file) %s\n", violation);
 755                 }
 756                 else if(0 == strcmp(long_option, "no-cued-seekpoints")) {
 757                         option_values.cued_seekpoints = false;
 758                 }
 759                 else if(0 == strcmp(long_option, "super-secret-totally-impractical-compression-level")) {
 760                         option_values.lax = true;
 761                         option_values.do_exhaustive_model_search = true;
 762                         option_values.do_escape_coding = true;
 763                         option_values.do_mid_side = true;
 764                         option_values.loose_mid_side = false;
 765                         option_values.do_qlp_coeff_prec_search = true;
 766                         option_values.min_residual_partition_order = 0;
 767                         option_values.max_residual_partition_order = 16;
 768                         option_values.rice_parameter_search_dist = 0;
 769                         option_values.max_lpc_order = 32;
 770                 }
 771                 else if(0 == strcmp(long_option, "force-aiff-format")) {
 772                         option_values.force_aiff_format = true;
 773                 }
 774                 else if(0 == strcmp(long_option, "force-raw-format")) {
 775                         option_values.force_raw_format = true;
 776                 }
 777                 else if(0 == strcmp(long_option, "lax")) {
 778                         option_values.lax = true;
 779                 }
 780                 else if(0 == strcmp(long_option, "replay-gain")) {
 781                         option_values.replay_gain = true;
 782                 }
 783                 else if(0 == strcmp(long_option, "sector-align")) {
 784                         option_values.sector_align = true;
 785                 }
 786 #ifdef FLAC__HAS_OGG
 787                 else if(0 == strcmp(long_option, "ogg")) {
 788                         option_values.use_ogg = true;
 789                 }
 790                 else if(0 == strcmp(long_option, "serial-number")) {
 791                         option_values.has_serial_number = true;
 792                         option_values.serial_number = atol(option_argument);
 793                 }
 794 #endif
 795                 else if(0 == strcmp(long_option, "endian")) {
 796                         FLAC__ASSERT(0 != option_argument);
 797                         if(0 == strncmp(option_argument, "big", strlen(option_argument)))
 798                                 option_values.format_is_big_endian = true;
 799                         else if(0 == strncmp(option_argument, "little", strlen(option_argument)))
 800                                 option_values.format_is_big_endian = false;
 801                         else
 802                                 return usage_error("ERROR: argument to --endian must be \"big\" or \"little\"\n");
 803                 }
 804                 else if(0 == strcmp(long_option, "channels")) {
 805                         FLAC__ASSERT(0 != option_argument);
 806                         option_values.format_channels = atoi(option_argument);
 807                 }
 808                 else if(0 == strcmp(long_option, "bps")) {
 809                         FLAC__ASSERT(0 != option_argument);
 810                         option_values.format_bps = atoi(option_argument);
 811                 }
 812                 else if(0 == strcmp(long_option, "sample-rate")) {
 813                         FLAC__ASSERT(0 != option_argument);
 814                         option_values.format_sample_rate = atoi(option_argument);
 815                 }
 816                 else if(0 == strcmp(long_option, "sign")) {
 817                         FLAC__ASSERT(0 != option_argument);
 818                         if(0 == strncmp(option_argument, "signed", strlen(option_argument)))
 819                                 option_values.format_is_unsigned_samples = false;
 820                         else if(0 == strncmp(option_argument, "unsigned", strlen(option_argument)))
 821                                 option_values.format_is_unsigned_samples = true;
 822                         else
 823                                 return usage_error("ERROR: argument to --sign must be \"signed\" or \"unsigned\"\n");
 824                 }
 825                 else if(0 == strcmp(long_option, "residual-gnuplot")) {
 826                         option_values.aopts.do_residual_gnuplot = true;
 827                 }
 828                 else if(0 == strcmp(long_option, "residual-text")) {
 829                         option_values.aopts.do_residual_text = true;
 830                 }
 831                 /*
 832                  * negatives
 833                  */
 834                 else if(0 == strcmp(long_option, "no-decode-through-errors")) {
 835                         option_values.continue_through_decode_errors = false;
 836                 }
 837                 else if(0 == strcmp(long_option, "no-silent")) {
 838                         flac__utils_verbosity_ = 2;
 839                 }
 840                 else if(0 == strcmp(long_option, "no-force")) {
 841                         option_values.force_file_overwrite = false;
 842                 }
 843                 else if(0 == strcmp(long_option, "no-seektable")) {
 844                         option_values.num_requested_seek_points = 0;
 845                         option_values.requested_seek_points[0] = '\0';
 846                 }
 847                 else if(0 == strcmp(long_option, "no-delete-input-file")) {
 848                         option_values.delete_input = false;
 849                 }
 850                 else if(0 == strcmp(long_option, "no-replay-gain")) {
 851                         option_values.replay_gain = false;
 852                 }
 853                 else if(0 == strcmp(long_option, "no-sector-align")) {
 854                         option_values.sector_align = false;
 855                 }
 856                 else if(0 == strcmp(long_option, "no-lax")) {
 857                         option_values.lax = false;
 858                 }
 859 #ifdef FLAC__HAS_OGG
 860                 else if(0 == strcmp(long_option, "no-ogg")) {
 861                         option_values.use_ogg = false;
 862                 }
 863 #endif
 864                 else if(0 == strcmp(long_option, "no-exhaustive-model-search")) {
 865                         option_values.do_exhaustive_model_search = false;
 866                 }
 867                 else if(0 == strcmp(long_option, "no-mid-side")) {
 868                         option_values.do_mid_side = option_values.loose_mid_side = false;
 869                 }
 870                 else if(0 == strcmp(long_option, "no-adaptive-mid-side")) {
 871                         option_values.loose_mid_side = option_values.do_mid_side = false;
 872                 }
 873                 else if(0 == strcmp(long_option, "no-qlp-coeff-prec-search")) {
 874                         option_values.do_qlp_coeff_prec_search = false;
 875                 }
 876                 else if(0 == strcmp(long_option, "no-padding")) {
 877                         option_values.padding = 0;
 878                 }
 879                 else if(0 == strcmp(long_option, "no-verify")) {
 880                         option_values.verify = false;
 881                 }
 882                 else if(0 == strcmp(long_option, "no-residual-gnuplot")) {
 883                         option_values.aopts.do_residual_gnuplot = false;
 884                 }
 885                 else if(0 == strcmp(long_option, "no-residual-text")) {
 886                         option_values.aopts.do_residual_text = false;
 887                 }
 888                 else if(0 == strcmp(long_option, "disable-constant-subframes")) {
 889                         option_values.debug.disable_constant_subframes = true;
 890                 }
 891                 else if(0 == strcmp(long_option, "disable-fixed-subframes")) {
 892                         option_values.debug.disable_fixed_subframes = true;
 893                 }
 894                 else if(0 == strcmp(long_option, "disable-verbatim-subframes")) {
 895                         option_values.debug.disable_verbatim_subframes = true;
 896                 }
 897         }
 898         else {
 899                 switch(short_option) {
 900                         case 'h':
 901                                 option_values.show_help = true;
 902                                 break;
 903                         case 'H':
 904                                 option_values.show_explain = true;
 905                                 break;
 906                         case 'v':
 907                                 option_values.show_version = true;
 908                                 break;
 909                         case 'd':
 910                                 option_values.mode_decode = true;
 911                                 break;
 912                         case 'a':
 913                                 option_values.mode_decode = true;
 914                                 option_values.analyze = true;
 915                                 break;
 916                         case 't':
 917                                 option_values.mode_decode = true;
 918                                 option_values.test_only = true;
 919                                 break;
 920                         case 'c':
 921                                 option_values.force_to_stdout = true;
 922                                 break;
 923                         case 's':
 924                                 flac__utils_verbosity_ = 1;
 925                                 break;
 926                         case 'f':
 927                                 option_values.force_file_overwrite = true;
 928                                 break;
 929                         case 'o':
 930                                 FLAC__ASSERT(0 != option_argument);
 931                                 option_values.cmdline_forced_outfilename = option_argument;
 932                                 break;
 933                         case 'F':
 934                                 option_values.continue_through_decode_errors = true;
 935                                 break;
 936                         case 'T':
 937                                 FLAC__ASSERT(0 != option_argument);
 938                                 if(!flac__vorbiscomment_add(option_values.vorbis_comment, option_argument, /*value_from_file=*/false, &violation))
 939                                         return usage_error("ERROR: (-T/--tag) %s\n", violation);
 940                                 break;
 941                         case '0':
 942                                 option_values.do_exhaustive_model_search = false;
 943                                 option_values.do_escape_coding = false;
 944                                 option_values.do_mid_side = false;
 945                                 option_values.loose_mid_side = false;
 946                                 option_values.qlp_coeff_precision = 0;
 947                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 2;
 948                                 option_values.rice_parameter_search_dist = 0;
 949                                 option_values.max_lpc_order = 0;
 950                                 break;
 951                         case '1':
 952                                 option_values.do_exhaustive_model_search = false;
 953                                 option_values.do_escape_coding = false;
 954                                 option_values.do_mid_side = true;
 955                                 option_values.loose_mid_side = true;
 956                                 option_values.qlp_coeff_precision = 0;
 957                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 2;
 958                                 option_values.rice_parameter_search_dist = 0;
 959                                 option_values.max_lpc_order = 0;
 960                                 break;
 961                         case '2':
 962                                 option_values.do_exhaustive_model_search = false;
 963                                 option_values.do_escape_coding = false;
 964                                 option_values.do_mid_side = true;
 965                                 option_values.loose_mid_side = false;
 966                                 option_values.qlp_coeff_precision = 0;
 967                                 option_values.min_residual_partition_order = 0;
 968                                 option_values.max_residual_partition_order = 3;
 969                                 option_values.rice_parameter_search_dist = 0;
 970                                 option_values.max_lpc_order = 0;
 971                                 break;
 972                         case '3':
 973                                 option_values.do_exhaustive_model_search = false;
 974                                 option_values.do_escape_coding = false;
 975                                 option_values.do_mid_side = false;
 976                                 option_values.loose_mid_side = false;
 977                                 option_values.qlp_coeff_precision = 0;
 978                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
 979                                 option_values.rice_parameter_search_dist = 0;
 980                                 option_values.max_lpc_order = 6;
 981                                 break;
 982                         case '4':
 983                                 option_values.do_exhaustive_model_search = false;
 984                                 option_values.do_escape_coding = false;
 985                                 option_values.do_mid_side = true;
 986                                 option_values.loose_mid_side = true;
 987                                 option_values.qlp_coeff_precision = 0;
 988                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
 989                                 option_values.rice_parameter_search_dist = 0;
 990                                 option_values.max_lpc_order = 8;
 991                                 break;
 992                         case '5':
 993                                 option_values.do_exhaustive_model_search = false;
 994                                 option_values.do_escape_coding = false;
 995                                 option_values.do_mid_side = true;
 996                                 option_values.loose_mid_side = false;
 997                                 option_values.qlp_coeff_precision = 0;
 998                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
 999                                 option_values.rice_parameter_search_dist = 0;
1000                                 option_values.max_lpc_order = 8;
1001                                 break;
1002                         case '6':
1003                                 option_values.do_exhaustive_model_search = false;
1004                                 option_values.do_escape_coding = false;
1005                                 option_values.do_mid_side = true;
1006                                 option_values.loose_mid_side = false;
1007                                 option_values.qlp_coeff_precision = 0;
1008                                 option_values.min_residual_partition_order = 0;
1009                                 option_values.max_residual_partition_order = 4;
1010                                 option_values.rice_parameter_search_dist = 0;
1011                                 option_values.max_lpc_order = 8;
1012                                 break;
1013                         case '7':
1014                                 option_values.do_exhaustive_model_search = true;
1015                                 option_values.do_escape_coding = false;
1016                                 option_values.do_mid_side = true;
1017                                 option_values.loose_mid_side = false;
1018                                 option_values.qlp_coeff_precision = 0;
1019                                 option_values.min_residual_partition_order = 0;
1020                                 option_values.max_residual_partition_order = 6;
1021                                 option_values.rice_parameter_search_dist = 0;
1022                                 option_values.max_lpc_order = 8;
1023                                 break;
1024                         case '8':
1025                                 option_values.do_exhaustive_model_search = true;
1026                                 option_values.do_escape_coding = false;
1027                                 option_values.do_mid_side = true;
1028                                 option_values.loose_mid_side = false;
1029                                 option_values.qlp_coeff_precision = 0;
1030                                 option_values.min_residual_partition_order = 0;
1031                                 option_values.max_residual_partition_order = 6;
1032                                 option_values.rice_parameter_search_dist = 0;
1033                                 option_values.max_lpc_order = 12;
1034                                 break;
1035                         case '9':
1036                                 return usage_error("ERROR: compression level '9' is reserved\n");
1037                         case 'V':
1038                                 option_values.verify = true;
1039                                 break;
1040                         case 'S':
1041                                 FLAC__ASSERT(0 != option_argument);
1042                                 if(0 == strcmp(option_argument, "-")) {
1043                                         option_values.num_requested_seek_points = 0;
1044                                         option_values.requested_seek_points[0] = '\0';
1045                                 }
1046                                 else {
1047                                         if(option_values.num_requested_seek_points < 0)
1048                                                 option_values.num_requested_seek_points = 0;
1049                                         option_values.num_requested_seek_points++;
1050                                         if(strlen(option_values.requested_seek_points)+strlen(option_argument)+2 >= sizeof(option_values.requested_seek_points)) {
1051                                                 return usage_error("ERROR: too many seekpoints requested\n");
1052                                         }
1053                                         else {
1054                                                 strcat(option_values.requested_seek_points, option_argument);
1055                                                 strcat(option_values.requested_seek_points, ";");
1056                                         }
1057                                 }
1058                                 break;
1059                         case 'P':
1060                                 FLAC__ASSERT(0 != option_argument);
1061                                 option_values.padding = atoi(option_argument);
1062                                 if(option_values.padding < 0)
1063                                         return usage_error("ERROR: argument to -P must be >= 0; for no padding use -P-\n");
1064                                 break;
1065                         case 'b':
1066                                 FLAC__ASSERT(0 != option_argument);
1067                                 option_values.blocksize = atoi(option_argument);
1068                                 break;
1069                         case 'e':
1070                                 option_values.do_exhaustive_model_search = true;
1071                                 break;
1072                         case 'E':
1073                                 option_values.do_escape_coding = true;
1074                                 break;
1075                         case 'l':
1076                                 FLAC__ASSERT(0 != option_argument);
1077                                 option_values.max_lpc_order = atoi(option_argument);
1078                                 break;
1079                         case 'A':
1080                                 FLAC__ASSERT(0 != option_argument);
1081                                 if(strlen(option_values.apodizations)+strlen(option_argument)+2 >= sizeof(option_values.apodizations)) {
1082                                         return usage_error("ERROR: too many apodization functions requested\n");
1083                                 }
1084                                 else {
1085                                         strcat(option_values.apodizations, option_argument);
1086                                         strcat(option_values.apodizations, ";");
1087                                 }
1088                                 break;
1089                         case 'm':
1090                                 option_values.do_mid_side = true;
1091                                 option_values.loose_mid_side = false;
1092                                 break;
1093                         case 'M':
1094                                 option_values.loose_mid_side = option_values.do_mid_side = true;
1095                                 break;
1096                         case 'p':
1097                                 option_values.do_qlp_coeff_prec_search = true;
1098                                 break;
1099                         case 'q':
1100                                 FLAC__ASSERT(0 != option_argument);
1101                                 option_values.qlp_coeff_precision = atoi(option_argument);
1102                                 break;
1103                         case 'r':
1104                                 FLAC__ASSERT(0 != option_argument);
1105                                 p = strchr(option_argument, ',');
1106                                 if(0 == p) {
1107                                         option_values.min_residual_partition_order = 0;
1108                                         option_values.max_residual_partition_order = atoi(option_argument);
1109                                 }
1110                                 else {
1111                                         option_values.min_residual_partition_order = atoi(option_argument);
1112                                         option_values.max_residual_partition_order = atoi(++p);
1113                                 }
1114                                 break;
1115                         case 'R':
1116                                 FLAC__ASSERT(0 != option_argument);
1117                                 option_values.rice_parameter_search_dist = atoi(option_argument);
1118                                 break;
1119                         default:
1120                                 FLAC__ASSERT(0);
1121                 }
1122         }
1123
1124         return 0;
1125 }
1126
1127 void free_options()
1128 {
1129         unsigned i;
1130         if(0 != option_values.filenames) {
1131                 for(i = 0; i < option_values.num_files; i++) {
1132                         if(0 != option_values.filenames[i])
1133                                 free(option_values.filenames[i]);
1134                 }
1135                 free(option_values.filenames);
1136         }
1137         if(0 != option_values.vorbis_comment)
1138                 FLAC__metadata_object_delete(option_values.vorbis_comment);
1139         for(i = 0; i < option_values.num_pictures; i++)
1140                 FLAC__metadata_object_delete(option_values.pictures[i]);
1141 }
1142
1143 int usage_error(const char *message, ...)
1144 {
1145         if(flac__utils_verbosity_ >= 1) {
1146                 va_list args;
1147
1148                 FLAC__ASSERT(0 != message);
1149
1150                 va_start(args, message);
1151
1152                 (void) vfprintf(stderr, message, args);
1153
1154                 va_end(args);
1155
1156                 printf("Type \"flac\" for a usage summary or \"flac --help\" for all options\n");
1157         }
1158
1159         return 1;
1160 }
1161
1162 void show_version()
1163 {
1164         printf("flac %s\n", FLAC__VERSION_STRING);
1165 }
1166
1167 static void usage_header()
1168 {
1169         printf("===============================================================================\n");
1170         printf("flac - Command-line FLAC encoder/decoder version %s\n", FLAC__VERSION_STRING);
1171         printf("Copyright (C) 2000,2001,2002,2003,2004,2005,2006  Josh Coalson\n");
1172         printf("\n");
1173         printf("This program is free software; you can redistribute it and/or\n");
1174         printf("modify it under the terms of the GNU General Public License\n");
1175         printf("as published by the Free Software Foundation; either version 2\n");
1176         printf("of the License, or (at your option) any later version.\n");
1177         printf("\n");
1178         printf("This program is distributed in the hope that it will be useful,\n");
1179         printf("but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
1180         printf("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n");
1181         printf("GNU General Public License for more details.\n");
1182         printf("\n");
1183         printf("You should have received a copy of the GNU General Public License\n");
1184         printf("along with this program; if not, write to the Free Software\n");
1185         printf("Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.\n");
1186         printf("===============================================================================\n");
1187 }
1188
1189 static void usage_summary()
1190 {
1191         printf("Usage:\n");
1192         printf("\n");
1193         printf(" Encoding: flac [<general-options>] [<encoding/format-options>] [INPUTFILE [...]]\n");
1194         printf(" Decoding: flac -d [<general-options>] [<format-options>] [FLACFILE [...]]\n");
1195         printf("  Testing: flac -t [<general-options>] [FLACFILE [...]]\n");
1196         printf("Analyzing: flac -a [<general-options>] [<analysis-options>] [FLACFILE [...]]\n");
1197         printf("\n");
1198 }
1199
1200 void short_usage()
1201 {
1202         usage_header();
1203         printf("\n");
1204         printf("This is the short help; for all options use 'flac --help'; for even more\n");
1205         printf("instructions use 'flac --explain'\n");
1206         printf("\n");
1207         printf("To encode:\n");
1208         printf("  flac [-#] [INPUTFILE [...]]\n");
1209         printf("\n");
1210         printf("  -# is -0 (fastest compression) to -8 (highest compression); -5 is the default\n");
1211         printf("\n");
1212         printf("To decode:\n");
1213         printf("  flac -d [INPUTFILE [...]]\n");
1214         printf("\n");
1215         printf("To test:\n");
1216         printf("  flac -t [INPUTFILE [...]]\n");
1217 }
1218
1219 void show_help()
1220 {
1221         usage_header();
1222         usage_summary();
1223         printf("general options:\n");
1224         printf("  -v, --version                Show the flac version number\n");
1225         printf("  -h, --help                   Show this screen\n");
1226         printf("  -H, --explain                Show detailed explanation of usage and options\n");
1227         printf("  -d, --decode                 Decode (the default behavior is to encode)\n");
1228         printf("  -t, --test                   Same as -d except no decoded file is written\n");
1229         printf("  -a, --analyze                Same as -d except an analysis file is written\n");
1230         printf("  -c, --stdout                 Write output to stdout\n");
1231         printf("  -s, --silent                 Do not write runtime encode/decode statistics\n");
1232         printf("      --totally-silent         Do not print anything, including errors\n");
1233         printf("  -f, --force                  Force overwriting of output files\n");
1234         printf("  -o, --output-name=FILENAME   Force the output file name\n");
1235         printf("      --output-prefix=STRING   Prepend STRING to output names\n");
1236         printf("      --delete-input-file      Deletes after a successful encode/decode\n");
1237         printf("      --skip={#|mm:ss.ss}      Skip the given initial samples for each input\n");
1238         printf("      --until={#|[+|-]mm:ss.ss}  Stop at the given sample for each input file\n");
1239 #ifdef FLAC__HAS_OGG
1240         printf("      --ogg                    Use Ogg as transport layer\n");
1241         printf("      --serial-number          Serial number to use for the FLAC stream\n");
1242 #endif
1243         printf("analysis options:\n");
1244         printf("      --residual-text          Include residual signal in text output\n");
1245         printf("      --residual-gnuplot       Generate gnuplot files of residual distribution\n");
1246         printf("decoding options:\n");
1247         printf("  -F, --decode-through-errors  Continue decoding through stream errors\n");
1248         printf("      --cue=[#.#][-[#.#]]      Set the beginning and ending cuepoints to decode\n");
1249         printf("encoding options:\n");
1250         printf("  -V, --verify                 Verify a correct encoding\n");
1251         printf("      --lax                    Allow encoder to generate non-Subset files\n");
1252         printf("      --sector-align           Align multiple files on sector boundaries\n");
1253         printf("      --replay-gain            Calculate ReplayGain & store in FLAC tags\n");
1254         printf("      --cuesheet=FILENAME      Import cuesheet and store in CUESHEET block\n");
1255         printf("  -T, --tag=FIELD=VALUE        Add a FLAC tag; may appear multiple times\n");
1256         printf("      --tag-from-file=FIELD=FILENAME   Like --tag but gets value from file\n");
1257         printf("  -S, --seekpoint={#|X|#x|#s}  Add seek point(s)\n");
1258         printf("  -P, --padding=#              Write a PADDING block of length #\n");
1259         printf("  -0, --compression-level-0, --fast  Synonymous with -l 0 -b 1152 -r 2,2\n");
1260         printf("  -1, --compression-level-1          Synonymous with -l 0 -b 1152 -M -r 2,2\n");
1261         printf("  -2, --compression-level-2          Synonymous with -l 0 -b 1152 -m -r 3\n");
1262         printf("  -3, --compression-level-3          Synonymous with -l 6 -b 4608 -r 3,3\n");
1263         printf("  -4, --compression-level-4          Synonymous with -l 8 -b 4608 -M -r 3,3\n");
1264         printf("  -5, --compression-level-5          Synonymous with -l 8 -b 4608 -m -r 3,3\n");
1265         printf("  -6, --compression-level-6          Synonymous with -l 8 -b 4608 -m -r 4\n");
1266         printf("  -7, --compression-level-7          Synonymous with -l 8 -b 4608 -m -e -r 6\n");
1267         printf("  -8, --compression-level-8, --best  Synonymous with -l 12 -b 4608 -m -e -r 6\n");
1268         printf("  -b, --blocksize=#                  Specify blocksize in samples\n");
1269         printf("  -m, --mid-side                     Try mid-side coding for each frame\n");
1270         printf("  -M, --adaptive-mid-side            Adaptive mid-side coding for all frames\n");
1271         printf("  -e, --exhaustive-model-search      Do exhaustive model search (expensive!)\n");
1272         printf("  -A, --apodization=\"function\"       Window audio data with given the function\n");
1273         printf("  -l, --max-lpc-order=#              Max LPC order; 0 => only fixed predictors\n");
1274         printf("  -p, --qlp-coeff-precision-search   Exhaustively search LP coeff quantization\n");
1275         printf("  -q, --qlp-coeff-precision=#        Specify precision in bits\n");
1276         printf("  -r, --rice-partition-order=[#,]#   Set [min,]max residual partition order\n");
1277         printf("format options:\n");
1278         printf("      --endian={big|little}    Set byte order for samples\n");
1279         printf("      --channels=#             Number of channels\n");
1280         printf("      --bps=#                  Number of bits per sample\n");
1281         printf("      --sample-rate=#          Sample rate in Hz\n");
1282         printf("      --sign={signed|unsigned} Sign of samples\n");
1283         printf("      --input-size=#           Size of the raw input in bytes\n");
1284         printf("      --force-aiff-format      Force decoding to AIFF format\n");
1285         printf("      --force-raw-format       Treat input or output as raw samples\n");
1286         printf("negative options:\n");
1287         printf("      --no-adaptive-mid-side\n");
1288         printf("      --no-decode-through-errors\n");
1289         printf("      --no-delete-input-file\n");
1290         printf("      --no-exhaustive-model-search\n");
1291         printf("      --no-lax\n");
1292         printf("      --no-mid-side\n");
1293 #ifdef FLAC__HAS_OGG
1294         printf("      --no-ogg\n");
1295 #endif
1296         printf("      --no-padding\n");
1297         printf("      --no-qlp-coeff-prec-search\n");
1298         printf("      --no-replay-gain\n");
1299         printf("      --no-residual-gnuplot\n");
1300         printf("      --no-residual-text\n");
1301         printf("      --no-sector-align\n");
1302         printf("      --no-seektable\n");
1303         printf("      --no-silent\n");
1304         printf("      --no-force\n");
1305         printf("      --no-verify\n");
1306 }
1307
1308 void show_explain()
1309 {
1310         usage_header();
1311         usage_summary();
1312         printf("For encoding:\n");
1313         printf("  The input file(s) may be a PCM RIFF WAVE file, AIFF (or uncompressed AIFF-C)\n");
1314         printf("  file, or raw samples.\n");
1315         printf("  The output file(s) will be in native FLAC or Ogg FLAC format\n");
1316         printf("For decoding, the reverse is true.\n");
1317         printf("\n");
1318         printf("A single INPUTFILE may be - for stdin.  No INPUTFILE implies stdin.  Use of\n");
1319         printf("stdin implies -c (write to stdout).  Normally you should use:\n");
1320         printf("   flac [options] -o outfilename  or  flac -d [options] -o outfilename\n");
1321         printf("instead of:\n");
1322         printf("   flac [options] > outfilename   or  flac -d [options] > outfilename\n");
1323         printf("since the former allows flac to seek backwards to write the STREAMINFO or\n");
1324         printf("WAVE/AIFF header contents when necessary.\n");
1325         printf("\n");
1326         printf("flac checks for the presence of a AIFF/WAVE header to decide whether or not to\n");
1327         printf("treat an input file as AIFF/WAVE format or raw samples.  If any input file is\n");
1328         printf("raw you must specify the format options {-fb|fl} -fc -fp and -fs, which will\n");
1329         printf("apply to all raw files.  You can force AIFF/WAVE files to be treated as raw\n");
1330         printf("files using -fr.\n");
1331         printf("\n");
1332         printf("general options:\n");
1333         printf("  -v, --version                Show the flac version number\n");
1334         printf("  -h, --help                   Show basic usage a list of all options\n");
1335         printf("  -H, --explain                Show this screen\n");
1336         printf("  -d, --decode                 Decode (the default behavior is to encode)\n");
1337         printf("  -t, --test                   Same as -d except no decoded file is written\n");
1338         printf("  -a, --analyze                Same as -d except an analysis file is written\n");
1339         printf("  -c, --stdout                 Write output to stdout\n");
1340         printf("  -s, --silent                 Do not write runtime encode/decode statistics\n");
1341         printf("      --totally-silent         Do not print anything of any kind, including\n");
1342         printf("                               warnings or errors.  The exit code will be the\n");
1343         printf("                               only way to determine successful completion.\n");
1344         printf("  -f, --force                  Force overwriting of output files\n");
1345         printf("  -o, --output-name=FILENAME   Force the output file name; usually flac just\n");
1346         printf("                               changes the extension.  May only be used when\n");
1347         printf("                               encoding a single file.  May not be used in\n");
1348         printf("                               conjunction with --output-prefix.\n");
1349         printf("      --output-prefix=STRING   Prefix each output file name with the given\n");
1350         printf("                               STRING.  This can be useful for encoding or\n");
1351         printf("                               decoding files to a different directory.  Make\n");
1352         printf("                               sure if your STRING is a path name that it ends\n");
1353         printf("                               with a '/' slash.\n");
1354         printf("      --delete-input-file      Automatically delete the input file after a\n");
1355         printf("                               successful encode or decode.  If there was an\n");
1356         printf("                               error (including a verify error) the input file\n");
1357         printf("                               is left intact.\n");
1358         printf("      --skip={#|mm:ss.ss}      Skip the first # samples of each input file; can\n");
1359         printf("                               be used both for encoding and decoding.  The\n");
1360         printf("                               alternative form mm:ss.ss can be used to specify\n");
1361         printf("                               minutes, seconds, and fractions of a second.\n");
1362         printf("      --until={#|[+|-]mm:ss.ss}  Stop at the given sample number for each input\n");
1363         printf("                               file.  The given sample number is not included\n");
1364         printf("                               in the decoded output.  The alternative form\n");
1365         printf("                               mm:ss.ss can be used to specify minutes,\n");
1366         printf("                               seconds, and fractions of a second.  If a `+'\n");
1367         printf("                               sign is at the beginning, the --until point is\n");
1368         printf("                               relative to the --skip point.  If a `-' sign is\n");
1369         printf("                               at the beginning, the --until point is relative\n");
1370         printf("                               to end of the audio.\n");
1371 #ifdef FLAC__HAS_OGG
1372         printf("      --ogg                    When encoding, generate Ogg FLAC output instead\n");
1373         printf("                               of native FLAC.  Ogg FLAC streams are FLAC\n");
1374         printf("                               streams wrapped in an Ogg transport layer.  The\n");
1375         printf("                               resulting file should have an '.ogg' extension\n");
1376         printf("                               and will still be decodable by flac.  When\n");
1377         printf("                               decoding, force the input to be treated as\n");
1378         printf("                               Ogg FLAC.  This is useful when piping input\n");
1379         printf("                               from stdin or when the filename does not end in\n");
1380         printf("                               '.ogg'.\n");
1381         printf("      --serial-number          Serial number to use for the FLAC stream.  When\n");
1382         printf("                               encoding and no serial number is given, flac\n");
1383         printf("                               uses '0'.  When decoding and no number is\n");
1384         printf("                               given, flac uses the serial number of the first\n");
1385         printf("                               page.\n");
1386 #endif
1387         printf("analysis options:\n");
1388         printf("      --residual-text          Include residual signal in text output.  This\n");
1389         printf("                               will make the file very big, much larger than\n");
1390         printf("                               even the decoded file.\n");
1391         printf("      --residual-gnuplot       Generate gnuplot files of residual distribution\n");
1392         printf("                               of each subframe\n");
1393         printf("decoding options:\n");
1394         printf("  -F, --decode-through-errors  By default flac stops decoding with an error\n");
1395         printf("                               and removes the partially decoded file if it\n");
1396         printf("                               encounters a bitstream error.  With -F, errors\n");
1397         printf("                               are still printed but flac will continue\n");
1398         printf("                               decoding to completion.  Note that errors may\n");
1399         printf("                               cause the decoded audio to be missing some\n");
1400         printf("                               samples or have silent sections.\n");
1401         printf("      --cue=[#.#][-[#.#]]      Set the beginning and ending cuepoints to\n");
1402         printf("                               decode.  The optional first #.# is the track and\n");
1403         printf("                               index point at which decoding will start; the\n");
1404         printf("                               default is the beginning of the stream.  The\n");
1405         printf("                               optional second #.# is the track and index point\n");
1406         printf("                               at which decoding will end; the default is the\n");
1407         printf("                               end of the stream.  If the cuepoint does not\n");
1408         printf("                               exist, the closest one before it (for the start\n");
1409         printf("                               point) or after it (for the end point) will be\n");
1410         printf("                               used.  The cuepoints are merely translated into\n");
1411         printf("                               sample numbers then used as --skip and --until.\n");
1412         printf("                               A CD track can always be cued by, for example,\n");
1413         printf("                               --cue=9.1-10.1 for track 9, even if the CD has\n");
1414         printf("                               no 10th track.\n");
1415         printf("encoding options:\n");
1416         printf("  -V, --verify                 Verify a correct encoding by decoding the\n");
1417         printf("                               output in parallel and comparing to the\n");
1418         printf("                               original\n");
1419         printf("      --lax                    Allow encoder to generate non-Subset files\n");
1420         printf("      --sector-align           Align encoding of multiple CD format WAVE files\n");
1421         printf("                               on sector boundaries.\n");
1422         printf("      --replay-gain            Calculate ReplayGain values and store them as\n");
1423         printf("                               FLAC tags.  Title gains/peaks will be computed\n");
1424         printf("                               for each file, and an album gain/peak will be\n");
1425         printf("                               computed for all files.  All input files must\n");
1426         printf("                               have the same resolution, sample rate, and\n");
1427         printf("                               number of channels.  The sample rate must be\n");
1428         printf("                               one of 8, 11.025, 12, 16, 22.05, 24, 32, 44.1,\n");
1429         printf("                               or 48 kHz.  NOTE: this option may also leave a\n");
1430         printf("                               few extra bytes in the PADDING block.\n");
1431         printf("      --cuesheet=FILENAME      Import the given cuesheet file and store it in\n");
1432         printf("                               a CUESHEET metadata block.  This option may only\n");
1433         printf("                               be used when encoding a single file.  A\n");
1434         printf("                               seekpoint will be added for each index point in\n");
1435         printf("                               the cuesheet to the SEEKTABLE unless\n");
1436         printf("                               --no-cued-seekpoints is specified.\n");
1437         printf("  -T, --tag=FIELD=VALUE        Add a FLAC tag.  Make sure to quote the\n");
1438         printf("                               comment if necessary.  This option may appear\n");
1439         printf("                               more than once to add several comments.  NOTE:\n");
1440         printf("                               all tags will be added to all encoded files.\n");
1441         printf("      --tag-from-file=FIELD=FILENAME   Like --tag, except FILENAME is a file\n");
1442         printf("                               whose contents will be read verbatim to set the\n");
1443         printf("                               tag value.  The contents will be converted to\n");
1444         printf("                               UTF-8 from the local charset.  This can be used\n");
1445         printf("                               to store a cuesheet in a tag (e.g.\n");
1446         printf("                               --tag-from-file=\"CUESHEET=image.cue\").  Do not\n");
1447         printf("                               try to store binary data in tag fields!  Use\n");
1448         printf("                               APPLICATION blocks for that.\n");
1449         printf("  -S, --seekpoint={#|X|#x|#s}  Include a point or points in a SEEKTABLE\n");
1450         printf("       #  : a specific sample number for a seek point\n");
1451         printf("       X  : a placeholder point (always goes at the end of the SEEKTABLE)\n");
1452         printf("       #x : # evenly spaced seekpoints, the first being at sample 0\n");
1453         printf("       #s : a seekpoint every # seconds; # does not have to be a whole number\n");
1454         printf("     You may use many -S options; the resulting SEEKTABLE will be the unique-\n");
1455         printf("           ified union of all such values.\n");
1456         printf("     With no -S options, flac defaults to '-S 10s'.  Use -S- for no SEEKTABLE.\n");
1457         printf("     Note: -S #x and -S #s will not work if the encoder can't determine the\n");
1458         printf("           input size before starting.\n");
1459         printf("     Note: if you use -S # and # is >= samples in the input, there will be\n");
1460         printf("           either no seek point entered (if the input size is determinable\n");
1461         printf("           before encoding starts) or a placeholder point (if input size is not\n");
1462         printf("           determinable)\n");
1463         printf("  -P, --padding=#              Tell the encoder to write a PADDING metadata\n");
1464         printf("                               block of the given length (in bytes) after the\n");
1465         printf("                               STREAMINFO block.  This is useful if you plan\n");
1466         printf("                               to tag the file later with an APPLICATION\n");
1467         printf("                               block; instead of having to rewrite the entire\n");
1468         printf("                               file later just to insert your block, you can\n");
1469         printf("                               write directly over the PADDING block.  Note\n");
1470         printf("                               that the total length of the PADDING block will\n");
1471         printf("                               be 4 bytes longer than the length given because\n");
1472         printf("                               of the 4 metadata block header bytes.  You can\n");
1473         printf("                               force no PADDING block at all to be written with\n");
1474         printf("                               --no-padding.  The encoder writes a PADDING\n");
1475         printf("                               block of 4096 bytes by default.\n");
1476         printf("  -b, --blocksize=#            Specify the blocksize in samples; the default is\n");
1477         printf("                               1152 for -l 0, else 4608; must be one of 192,\n");
1478         printf("                               576, 1152, 2304, 4608, 256, 512, 1024, 2048,\n");
1479         printf("                               4096, 8192, 16384, or 32768 (unless --lax is\n");
1480         printf("                               used)\n");
1481         printf("  -0, --compression-level-0, --fast  Synonymous with -l 0 -b 1152 -r 2,2\n");
1482         printf("  -1, --compression-level-1          Synonymous with -l 0 -b 1152 -M -r 2,2\n");
1483         printf("  -2, --compression-level-2          Synonymous with -l 0 -b 1152 -m -r 3\n");
1484         printf("  -3, --compression-level-3          Synonymous with -l 6 -b 4608 -r 3,3\n");
1485         printf("  -4, --compression-level-4          Synonymous with -l 8 -b 4608 -M -r 3,3\n");
1486         printf("  -5, --compression-level-5          Synonymous with -l 8 -b 4608 -m -r 3,3\n");
1487         printf("                                     -5 is the default setting\n");
1488         printf("  -6, --compression-level-6          Synonymous with -l 8 -b 4608 -m -r 4\n");
1489         printf("  -7, --compression-level-7          Synonymous with -l 8 -b 4608 -m -e -r 6\n");
1490         printf("  -8, --compression-level-8, --best  Synonymous with -l 12 -b 4608 -m -e -r 6\n");
1491         printf("  -m, --mid-side                     Try mid-side coding for each frame\n");
1492         printf("                                     (stereo only)\n");
1493         printf("  -M, --adaptive-mid-side            Adaptive mid-side coding for all frames\n");
1494         printf("                                     (stereo only)\n");
1495         printf("  -e, --exhaustive-model-search      Do exhaustive model search (expensive!)\n");
1496         printf("  -A, --apodization=\"function\"       Window audio data with given the function.\n");
1497         printf("                                     The functions are: bartlett, bartlett_hann,\n");
1498         printf("                                     blackman, blackman_harris_4term_92db,\n");
1499         printf("                                     connes, flattop, gauss(STDDEV), hamming,\n");
1500         printf("                                     hann, kaiser_bessel, nuttall, rectangle,\n");
1501         printf("                                     triangle, tukey(P), welch.  More than one\n");
1502         printf("                                     may be specified but encoding time is a\n");
1503         printf("                                     multiple of the number of functions since\n");
1504         printf("                                     they are each tried in turn.  The encoder\n");
1505         printf("                                     chooses suitable defaults in the absence\n");
1506         printf("                                     of any -A options.\n");
1507         printf("  -l, --max-lpc-order=#              Max LPC order; 0 => only fixed predictors\n");
1508         printf("  -p, --qlp-coeff-precision-search   Do exhaustive search of LP coefficient\n");
1509         printf("                                     quantization (expensive!); overrides -q;\n");
1510         printf("                                     does nothing if using -l 0\n");
1511         printf("  -q, --qlp-coeff-precision=#        Specify precision in bits of quantized\n");
1512         printf("                                     linear-predictor coefficients; 0 => let\n");
1513         printf("                                     encoder decide (the minimun is %u, the\n", FLAC__MIN_QLP_COEFF_PRECISION);
1514         printf("                                     default is -q 0)\n");
1515         printf("  -r, --rice-partition-order=[#,]#   Set [min,]max residual partition order\n");
1516         printf("                                     (# is 0..16; min defaults to 0; the\n");
1517         printf("                                     default is -r 0; above 4 doesn't usually\n");
1518         printf("                                     help much)\n");
1519         printf("format options:\n");
1520         printf("      --endian={big|little}    Set byte order for samples\n");
1521         printf("      --channels=#             Number of channels\n");
1522         printf("      --bps=#                  Number of bits per sample\n");
1523         printf("      --sample-rate=#          Sample rate in Hz\n");
1524         printf("      --sign={signed|unsigned} Sign of samples (the default is signed)\n");
1525         printf("      --input-size=#           Size of the raw input in bytes.  If you are\n");
1526         printf("                               encoding raw samples from stdin, you must set\n");
1527         printf("                               this option in order to be able to use --skip,\n");
1528         printf("                               --until, --cue-sheet, or other options that need\n");
1529         printf("                               to know the size of the input beforehand.  If\n");
1530         printf("                               the size given is greater than what is found in\n");
1531         printf("                               the input stream, the encoder will complain\n");
1532         printf("                               about an unexpected end-of-file.  If the size\n");
1533         printf("                               given is less, samples will be truncated.\n");
1534         printf("      --force-aiff-format      Force the decoder to output AIFF format.  This\n");
1535         printf("                               option is not needed if the output filename (as\n");
1536         printf("                               set by -o) ends with .aif or .aiff; this option\n");
1537         printf("                               has no effect when encoding since input AIFF is\n");
1538         printf("                               auto-detected.\n");
1539         printf("      --force-raw-format       Force input (when encoding) or output (when\n");
1540         printf("                               decoding) to be treated as raw samples\n");
1541         printf("negative options:\n");
1542         printf("      --no-adaptive-mid-side\n");
1543         printf("      --no-decode-through-errors\n");
1544         printf("      --no-delete-input-file\n");
1545         printf("      --no-exhaustive-model-search\n");
1546         printf("      --no-lax\n");
1547         printf("      --no-mid-side\n");
1548 #ifdef FLAC__HAS_OGG
1549         printf("      --no-ogg\n");
1550 #endif
1551         printf("      --no-padding\n");
1552         printf("      --no-qlp-coeff-prec-search\n");
1553         printf("      --no-residual-gnuplot\n");
1554         printf("      --no-residual-text\n");
1555         printf("      --no-sector-align\n");
1556         printf("      --no-seektable\n");
1557         printf("      --no-silent\n");
1558         printf("      --no-force\n");
1559         printf("      --no-verify\n");
1560 }
1561
1562 void format_mistake(const char *infilename, const char *wrong, const char *right)
1563 {
1564         flac__utils_printf(stderr, 1, "WARNING: %s is not a %s file; treating as a %s file\n", infilename, wrong, right);
1565 }
1566
1567 int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file)
1568 {
1569         FILE *encode_infile;
1570         FLAC__byte lookahead[12];
1571         unsigned lookahead_length = 0;
1572         FileFormat fmt = RAW;
1573         FLAC__bool is_aifc = false;
1574         int retval;
1575         off_t infilesize;
1576         encode_options_t common_options;
1577         const char *outfilename = get_encoded_outfilename(infilename); /* the final name of the encoded file */
1578         /* internal_outfilename is the file we will actually write to; it will be a temporary name if infilename==outfilename */
1579         char *internal_outfilename = 0; /* NULL implies 'use outfilename' */
1580
1581         if(0 == outfilename) {
1582                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", infilename);
1583                 return 1;
1584         }
1585
1586         if(0 == strcmp(infilename, "-")) {
1587                 infilesize = (off_t)(-1);
1588                 encode_infile = grabbag__file_get_binary_stdin();
1589         }
1590         else {
1591                 infilesize = grabbag__file_get_filesize(infilename);
1592                 if(0 == (encode_infile = fopen(infilename, "rb"))) {
1593                         flac__utils_printf(stderr, 1, "ERROR: can't open input file %s: %s\n", infilename, strerror(errno));
1594                         return 1;
1595                 }
1596         }
1597
1598         if(!option_values.force_raw_format) {
1599                 /* first set format based on name */
1600                 if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".wav"))
1601                         fmt= WAV;
1602                 else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".aif"))
1603                         fmt= AIF;
1604                 else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".aiff"))
1605                         fmt= AIF;
1606                 else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".flac"))
1607                         fmt= FLAC;
1608
1609                 /* attempt to guess the file type based on the first 12 bytes */
1610                 if((lookahead_length = fread(lookahead, 1, 12, encode_infile)) < 12) {
1611                         if(fmt != RAW)
1612                                 format_mistake(infilename, fmt == AIF ? "AIFF" : "WAVE", "raw");
1613                         fmt= RAW;
1614                 }
1615                 else {
1616                         if(!strncmp((const char *)lookahead, "RIFF", 4) && !strncmp((const char *)lookahead+8, "WAVE", 4))
1617                                 fmt= WAV;
1618                         else if(!strncmp((const char *)lookahead, "FORM", 4) && !strncmp((const char *)lookahead+8, "AIFF", 4))
1619                                 fmt= AIF;
1620                         else if(!strncmp((const char *)lookahead, "FORM", 4) && !strncmp((const char *)lookahead+8, "AIFC", 4)) {
1621                                 fmt= AIF;
1622                                 is_aifc = true;
1623                         }
1624                         else if(!memcmp(lookahead, FLAC__STREAM_SYNC_STRING, sizeof(FLAC__STREAM_SYNC_STRING)))
1625                                 fmt= FLAC;
1626                         else {
1627                                 if(fmt != RAW)
1628                                         format_mistake(infilename, fmt == AIF ? "AIFF" : "WAVE", "raw");
1629                                 fmt= RAW;
1630                         }
1631                 }
1632         }
1633
1634         /*
1635          * Error if output file already exists (and -f not used).
1636          * Use grabbag__file_get_filesize() as a cheap way to check.
1637          */
1638         if(!option_values.test_only && !option_values.force_file_overwrite && strcmp(outfilename, "-") && grabbag__file_get_filesize(outfilename) != (off_t)(-1)) {
1639                 if(fmt == FLAC) {
1640                         /* need more detailed error message when re-flac'ing to avoid confusing the user */
1641                         flac__utils_printf(stderr, 1,
1642                                 "ERROR: output file %s already exists.\n\n"
1643                                 "By default flac encodes files to FLAC format; if you meant to decode this file\n"
1644                                 "from FLAC to something else, use -d.  If you meant to re-encode this file from\n"
1645                                 "FLAC to FLAC again, use -f to force writing to the same file, or -o to specify\n"
1646                                 "a different output filename.\n",
1647                                 outfilename
1648                         );
1649                 }
1650                 else
1651                         flac__utils_printf(stderr, 1, "ERROR: output file %s already exists, use -f to override\n", outfilename);
1652                 return 1;
1653         }
1654
1655         if(option_values.format_input_size >= 0) {
1656                 if (fmt != RAW || infilesize >= 0) {
1657                         flac__utils_printf(stderr, 1, "ERROR: can only use --input-size when encoding raw samples from stdin\n");
1658                         return 1;
1659                 }
1660                 else {
1661                         infilesize = option_values.format_input_size;
1662                 }
1663         }
1664
1665         if(option_values.sector_align && fmt == FLAC) {
1666                 flac__utils_printf(stderr, 1, "ERROR: can't use --sector-align when the input file is FLAC\n");
1667                 return 1;
1668         }
1669         if(option_values.sector_align && fmt == RAW && infilesize < 0) {
1670                 flac__utils_printf(stderr, 1, "ERROR: can't use --sector-align when the input size is unknown\n");
1671                 return 1;
1672         }
1673
1674         if(fmt == RAW) {
1675                 if(option_values.format_is_big_endian < 0 || option_values.format_is_unsigned_samples < 0 || option_values.format_channels < 0 || option_values.format_bps < 0 || option_values.format_sample_rate < 0)
1676                         return usage_error("ERROR: for encoding a raw file you must specify a value for --endian, --sign, --channels, --bps, and --sample-rate\n");
1677         }
1678
1679         if(encode_infile == stdin || option_values.force_to_stdout) {
1680                 if(option_values.replay_gain)
1681                         return usage_error("ERROR: --replay-gain cannot be used when encoding to stdout\n");
1682         }
1683
1684         if(!flac__utils_parse_skip_until_specification(option_values.skip_specification, &common_options.skip_specification) || common_options.skip_specification.is_relative)
1685                 return usage_error("ERROR: invalid value for --skip\n");
1686
1687         if(!flac__utils_parse_skip_until_specification(option_values.until_specification, &common_options.until_specification)) /*@@@ more checks: no + without --skip, no - unless known total_samples_to_{en,de}code */
1688                 return usage_error("ERROR: invalid value for --until\n");
1689         /* if there is no "--until" we want to default to "--until=-0" */
1690         if(0 == option_values.until_specification)
1691                 common_options.until_specification.is_relative = true;
1692
1693         common_options.verify = option_values.verify;
1694 #ifdef FLAC__HAS_OGG
1695         common_options.use_ogg = option_values.use_ogg;
1696         /* set a random serial number if one has not yet been specified */
1697         if(!option_values.has_serial_number) {
1698                 option_values.serial_number = rand();
1699                 option_values.has_serial_number = true;
1700         }
1701         common_options.serial_number = option_values.serial_number++;
1702 #endif
1703         common_options.lax = option_values.lax;
1704         common_options.do_mid_side = option_values.do_mid_side;
1705         common_options.loose_mid_side = option_values.loose_mid_side;
1706         common_options.do_exhaustive_model_search = option_values.do_exhaustive_model_search;
1707         common_options.do_escape_coding = option_values.do_escape_coding;
1708         common_options.do_qlp_coeff_prec_search = option_values.do_qlp_coeff_prec_search;
1709         common_options.min_residual_partition_order = option_values.min_residual_partition_order;
1710         common_options.max_residual_partition_order = option_values.max_residual_partition_order;
1711         common_options.rice_parameter_search_dist = option_values.rice_parameter_search_dist;
1712         common_options.apodizations = option_values.apodizations;
1713         common_options.max_lpc_order = option_values.max_lpc_order;
1714         common_options.blocksize = (unsigned)option_values.blocksize;
1715         common_options.qlp_coeff_precision = option_values.qlp_coeff_precision;
1716         common_options.padding = option_values.padding;
1717         common_options.requested_seek_points = option_values.requested_seek_points;
1718         common_options.num_requested_seek_points = option_values.num_requested_seek_points;
1719         common_options.cuesheet_filename = option_values.cuesheet_filename;
1720         common_options.cued_seekpoints = option_values.cued_seekpoints;
1721         common_options.is_first_file = is_first_file;
1722         common_options.is_last_file = is_last_file;
1723         common_options.align_reservoir = align_reservoir;
1724         common_options.align_reservoir_samples = &align_reservoir_samples;
1725         common_options.replay_gain = option_values.replay_gain;
1726         common_options.sector_align = option_values.sector_align;
1727         common_options.vorbis_comment = option_values.vorbis_comment;
1728         FLAC__ASSERT(sizeof(common_options.pictures) >= sizeof(option_values.pictures));
1729         memcpy(common_options.pictures, option_values.pictures, sizeof(option_values.pictures));
1730         common_options.num_pictures = option_values.num_pictures;
1731         common_options.debug.disable_constant_subframes = option_values.debug.disable_constant_subframes;
1732         common_options.debug.disable_fixed_subframes = option_values.debug.disable_fixed_subframes;
1733         common_options.debug.disable_verbatim_subframes = option_values.debug.disable_verbatim_subframes;
1734
1735         /* if infilename==outfilename, we need to write to a temporary file */
1736         if(encode_infile != stdin && 0 == strcmp(infilename, outfilename)) { /*@@@@@@ BUG strcmp is not adequate to check if infilename and outfilename are the same file */
1737                 static const char *tmp_suffix = ".tmp";
1738                 if(0 == (internal_outfilename = malloc(strlen(outfilename)+strlen(tmp_suffix)+1))) {
1739                         flac__utils_printf(stderr, 1, "ERROR allocating memory for tempfile name\n");
1740                         return 1;
1741                 }
1742                 strcpy(internal_outfilename, outfilename);
1743                 strcat(internal_outfilename, tmp_suffix);
1744         }
1745
1746         if(fmt == RAW) {
1747                 raw_encode_options_t options;
1748
1749                 options.common = common_options;
1750                 options.is_big_endian = option_values.format_is_big_endian;
1751                 options.is_unsigned_samples = option_values.format_is_unsigned_samples;
1752                 options.channels = option_values.format_channels;
1753                 options.bps = option_values.format_bps;
1754                 options.sample_rate = option_values.format_sample_rate;
1755
1756                 retval = flac__encode_raw(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options);
1757         }
1758         else if(fmt == FLAC) {
1759                 flac_encode_options_t options;
1760
1761                 options.common = common_options;
1762
1763                 retval = flac__encode_flac(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options);
1764         }
1765         else {
1766                 wav_encode_options_t options;
1767
1768                 options.common = common_options;
1769
1770                 if(fmt == AIF)
1771                         retval = flac__encode_aif(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options, is_aifc);
1772                 else
1773                         retval = flac__encode_wav(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options);
1774         }
1775
1776         if(retval == 0) {
1777                 if(strcmp(outfilename, "-")) {
1778                         if(option_values.replay_gain) {
1779                                 float title_gain, title_peak;
1780                                 const char *error;
1781                                 grabbag__replaygain_get_title(&title_gain, &title_peak);
1782                                 if(
1783                                         0 != (error = grabbag__replaygain_store_to_file_reference(internal_outfilename? internal_outfilename : outfilename, /*preserve_modtime=*/true)) ||
1784                                         0 != (error = grabbag__replaygain_store_to_file_title(internal_outfilename? internal_outfilename : outfilename, title_gain, title_peak, /*preserve_modtime=*/true))
1785                                 ) {
1786                                         flac__utils_printf(stderr, 1, "%s: ERROR writing ReplayGain reference/title tags (%s)\n", outfilename, error);
1787                                 }
1788                         }
1789                         if(strcmp(infilename, "-"))
1790                                 grabbag__file_copy_metadata(infilename, internal_outfilename? internal_outfilename : outfilename);
1791                 }
1792         }
1793
1794         /* rename temporary file if necessary */
1795         if(retval == 0 && internal_outfilename != 0) {
1796                 if(rename(internal_outfilename, outfilename) < 0) {
1797 #if defined _MSC_VER || defined __MINGW32__ || defined __EMX__
1798                         /* on some flavors of windows, rename() will fail if the destination already exists, so we unlink and try again */
1799                         if(unlink(outfilename) < 0) {
1800                                 flac__utils_printf(stderr, 1, "ERROR: moving new FLAC file %s back on top of original FLAC file %s, keeping both\n", internal_outfilename, outfilename);
1801                                 retval = 1;
1802                         }
1803                         else if(rename(internal_outfilename, outfilename) < 0) {
1804                                 flac__utils_printf(stderr, 1, "ERROR: moving new FLAC file %s back on top of original FLAC file %s, you must do it\n", internal_outfilename, outfilename);
1805                                 retval = 1;
1806                         }
1807 #else
1808                         flac__utils_printf(stderr, 1, "ERROR: moving new FLAC file %s back on top of original FLAC file %s, keeping both\n", internal_outfilename, outfilename);
1809                         retval = 1;
1810 #endif
1811                 }
1812         }
1813
1814         /* handle --delete-input-file, but don't want to delete if piping from stdin, or if input filename and output filename are the same */
1815         if(retval == 0 && option_values.delete_input && strcmp(infilename, "-") && internal_outfilename == 0)
1816                 unlink(infilename);
1817
1818         if(internal_outfilename != 0)
1819                 free(internal_outfilename);
1820
1821         return retval;
1822 }
1823
1824 int decode_file(const char *infilename)
1825 {
1826         int retval;
1827         FLAC__bool treat_as_ogg = false;
1828         decode_options_t common_options;
1829         const char *outfilename = get_decoded_outfilename(infilename);
1830
1831         if(0 == outfilename) {
1832                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", infilename);
1833                 return 1;
1834         }
1835
1836         /*
1837          * Error if output file already exists (and -f not used).
1838          * Use grabbag__file_get_filesize() as a cheap way to check.
1839          */
1840         if(!option_values.test_only && !option_values.force_file_overwrite && grabbag__file_get_filesize(outfilename) != (off_t)(-1)) {
1841                 flac__utils_printf(stderr, 1, "ERROR: output file %s already exists, use -f to override\n", outfilename);
1842                 return 1;
1843         }
1844
1845         if(!option_values.test_only && !option_values.analyze) {
1846                 if(option_values.force_raw_format && (option_values.format_is_big_endian < 0 || option_values.format_is_unsigned_samples < 0))
1847                         return usage_error("ERROR: for decoding to a raw file you must specify a value for --endian and --sign\n");
1848         }
1849
1850         if(option_values.use_ogg)
1851                 treat_as_ogg = true;
1852         else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".ogg"))
1853                 treat_as_ogg = true;
1854         else
1855                 treat_as_ogg = false;
1856
1857 #ifndef FLAC__HAS_OGG
1858         if(treat_as_ogg) {
1859                 flac__utils_printf(stderr, 1, "%s: Ogg support has not been built into this copy of flac\n", infilename);
1860                 return 1;
1861         }
1862 #endif
1863
1864         if(!flac__utils_parse_skip_until_specification(option_values.skip_specification, &common_options.skip_specification) || common_options.skip_specification.is_relative)
1865                 return usage_error("ERROR: invalid value for --skip\n");
1866
1867         if(!flac__utils_parse_skip_until_specification(option_values.until_specification, &common_options.until_specification)) /*@@@ more checks: no + without --skip, no - unless known total_samples_to_{en,de}code */
1868                 return usage_error("ERROR: invalid value for --until\n");
1869         /* if there is no "--until" we want to default to "--until=-0" */
1870         if(0 == option_values.until_specification)
1871                 common_options.until_specification.is_relative = true;
1872
1873         if(option_values.cue_specification) {
1874                 if(!flac__utils_parse_cue_specification(option_values.cue_specification, &common_options.cue_specification))
1875                         return usage_error("ERROR: invalid value for --cue\n");
1876                 common_options.has_cue_specification = true;
1877         }
1878         else
1879                 common_options.has_cue_specification = false;
1880
1881         common_options.continue_through_decode_errors = option_values.continue_through_decode_errors;
1882         common_options.replaygain_synthesis_spec = option_values.replaygain_synthesis_spec;
1883 #ifdef FLAC__HAS_OGG
1884         common_options.is_ogg = treat_as_ogg;
1885         common_options.use_first_serial_number = !option_values.has_serial_number;
1886         common_options.serial_number = option_values.serial_number;
1887 #endif
1888
1889         if(!option_values.force_raw_format) {
1890                 wav_decode_options_t options;
1891
1892                 options.common = common_options;
1893
1894                 if(
1895                         option_values.force_aiff_format ||
1896                         (strlen(outfilename) >= 4 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-4), ".aif")) ||
1897                         (strlen(outfilename) >= 5 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-5), ".aiff"))
1898                 )
1899                         retval = flac__decode_aiff(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
1900                 else
1901                         retval = flac__decode_wav(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
1902         }
1903         else {
1904                 raw_decode_options_t options;
1905
1906                 options.common = common_options;
1907                 options.is_big_endian = option_values.format_is_big_endian;
1908                 options.is_unsigned_samples = option_values.format_is_unsigned_samples;
1909
1910                 retval = flac__decode_raw(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
1911         }
1912
1913         if(retval == 0 && strcmp(infilename, "-")) {
1914                 if(strcmp(outfilename, "-"))
1915                         grabbag__file_copy_metadata(infilename, outfilename);
1916                 if(option_values.delete_input && !option_values.test_only && !option_values.analyze)
1917                         unlink(infilename);
1918         }
1919
1920         return retval;
1921 }
1922
1923 const char *get_encoded_outfilename(const char *infilename)
1924 {
1925         const char *suffix = (option_values.use_ogg? ".ogg" : ".flac");
1926         return get_outfilename(infilename, suffix);
1927 }
1928
1929 const char *get_decoded_outfilename(const char *infilename)
1930 {
1931         const char *suffix;
1932         if(option_values.analyze) {
1933                 suffix = ".ana";
1934         }
1935         else if(option_values.force_raw_format) {
1936                 suffix = ".raw";
1937         }
1938         else if(option_values.force_aiff_format) {
1939                 suffix = ".aiff";
1940         }
1941         else {
1942                 suffix = ".wav";
1943         }
1944         return get_outfilename(infilename, suffix);
1945 }
1946
1947 const char *get_outfilename(const char *infilename, const char *suffix)
1948 {
1949         if(0 == option_values.cmdline_forced_outfilename) {
1950                 static char buffer[4096]; /* @@@ bad MAGIC NUMBER */
1951
1952                 if(0 == strcmp(infilename, "-") || option_values.force_to_stdout) {
1953                         strcpy(buffer, "-");
1954                 }
1955                 else {
1956                         char *p;
1957                         if (flac__strlcpy(buffer, option_values.output_prefix? option_values.output_prefix : "", sizeof buffer) >= sizeof buffer)
1958                                 return 0;
1959                         if (flac__strlcat(buffer, infilename, sizeof buffer) >= sizeof buffer)
1960                                 return 0;
1961                         if(0 == (p = strrchr(buffer, '.'))) {
1962                                 if (flac__strlcat(buffer, suffix, sizeof buffer) >= sizeof buffer)
1963                                         return 0;
1964                         }
1965                         else {
1966                                 *p = '\0';
1967                                 if (flac__strlcat(buffer, suffix, sizeof buffer) >= sizeof buffer)
1968                                         return 0;
1969                         }
1970                 }
1971                 return buffer;
1972         }
1973         else
1974                 return option_values.cmdline_forced_outfilename;
1975 }
1976
1977 void die(const char *message)
1978 {
1979         FLAC__ASSERT(0 != message);
1980         flac__utils_printf(stderr, 1, "ERROR: %s\n", message);
1981         exit(1);
1982 }
1983
1984 char *local_strdup(const char *source)
1985 {
1986         char *ret;
1987         FLAC__ASSERT(0 != source);
1988         if(0 == (ret = strdup(source)))
1989                 die("out of memory during strdup()");
1990         return ret;
1991 }