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, OGGFLAC } 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 static void add_compression_setting_bool(compression_setting_type_t type, FLAC__bool value);
  68 static void add_compression_setting_string(compression_setting_type_t type, const char *value);
  69 static void add_compression_setting_unsigned(compression_setting_type_t type, unsigned value);
  70
  71 static int usage_error(const char *message, ...);
  72 static void short_usage();
  73 static void show_version();
  74 static void show_help();
  75 static void show_explain();
  76 static void format_mistake(const char *infilename, const char *wrong, const char *right);
  77
  78 static int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file);
  79 static int decode_file(const char *infilename);
  80
  81 static const char *get_encoded_outfilename(const char *infilename);
  82 static const char *get_decoded_outfilename(const char *infilename);
  83 static const char *get_outfilename(const char *infilename, const char *suffix);
  84
  85 static void die(const char *message);
  86 static char *local_strdup(const char *source);
  87 #ifdef _MSC_VER
  88 /* There's no strtoll() in MSVC6 so we just write a specialized one */
  89 static FLAC__int64 local__strtoll(const char *src, char **endptr);
  90 #endif
  91
  92
  93 /*
  94  * share__getopt format struct; note that for long options with no
  95  * short option equivalent we just set the 'val' field to 0.
  96  */
  97 static struct share__option long_options_[] = {
  98         /*
  99          * general options
 100          */
 101         { "help"             , share__no_argument, 0, 'h' },
 102         { "explain"          , share__no_argument, 0, 'H' },
 103         { "version"          , share__no_argument, 0, 'v' },
 104         { "decode"           , share__no_argument, 0, 'd' },
 105         { "analyze"          , share__no_argument, 0, 'a' },
 106         { "test"             , share__no_argument, 0, 't' },
 107         { "stdout"           , share__no_argument, 0, 'c' },
 108         { "silent"           , share__no_argument, 0, 's' },
 109         { "totally-silent"   , share__no_argument, 0, 0 },
 110         { "force"            , share__no_argument, 0, 'f' },
 111         { "delete-input-file", share__no_argument, 0, 0 },
 112         { "output-prefix"    , share__required_argument, 0, 0 },
 113         { "output-name"      , share__required_argument, 0, 'o' },
 114         { "skip"             , share__required_argument, 0, 0 },
 115         { "until"            , share__required_argument, 0, 0 },
 116         { "channel-map"      , share__required_argument, 0, 0 }, /* undocumented */
 117
 118         /*
 119          * decoding options
 120          */
 121         { "decode-through-errors", share__no_argument, 0, 'F' },
 122         { "cue"                  , share__required_argument, 0, 0 },
 123         { "apply-replaygain-which-is-not-lossless", share__optional_argument, 0, 0 }, /* undocumented */
 124
 125         /*
 126          * encoding options
 127          */
 128         { "cuesheet"                  , share__required_argument, 0, 0 },
 129         { "no-cued-seekpoints"        , share__no_argument, 0, 0 },
 130         { "picture"                   , share__required_argument, 0, 0 },
 131         { "tag"                       , share__required_argument, 0, 'T' },
 132         { "tag-from-file"             , share__required_argument, 0, 0 },
 133         { "compression-level-0"       , share__no_argument, 0, '0' },
 134         { "compression-level-1"       , share__no_argument, 0, '1' },
 135         { "compression-level-2"       , share__no_argument, 0, '2' },
 136         { "compression-level-3"       , share__no_argument, 0, '3' },
 137         { "compression-level-4"       , share__no_argument, 0, '4' },
 138         { "compression-level-5"       , share__no_argument, 0, '5' },
 139         { "compression-level-6"       , share__no_argument, 0, '6' },
 140         { "compression-level-7"       , share__no_argument, 0, '7' },
 141         { "compression-level-8"       , share__no_argument, 0, '8' },
 142         { "compression-level-9"       , share__no_argument, 0, '9' },
 143         { "best"                      , share__no_argument, 0, '8' },
 144         { "fast"                      , share__no_argument, 0, '0' },
 145         { "verify"                    , share__no_argument, 0, 'V' },
 146         { "force-aiff-format"         , share__no_argument, 0, 0 },
 147         { "force-raw-format"          , share__no_argument, 0, 0 },
 148         { "lax"                       , share__no_argument, 0, 0 },
 149         { "replay-gain"               , share__no_argument, 0, 0 },
 150         { "sector-align"              , share__no_argument, 0, 0 },
 151         { "seekpoint"                 , share__required_argument, 0, 'S' },
 152         { "padding"                   , share__required_argument, 0, 'P' },
 153 #if FLAC__HAS_OGG
 154         { "ogg"                       , share__no_argument, 0, 0 },
 155         { "serial-number"             , share__required_argument, 0, 0 },
 156 #endif
 157         { "blocksize"                 , share__required_argument, 0, 'b' },
 158         { "exhaustive-model-search"   , share__no_argument, 0, 'e' },
 159         { "max-lpc-order"             , share__required_argument, 0, 'l' },
 160         { "apodization"               , share__required_argument, 0, 'A' },
 161         { "mid-side"                  , share__no_argument, 0, 'm' },
 162         { "adaptive-mid-side"         , share__no_argument, 0, 'M' },
 163         { "qlp-coeff-precision-search", share__no_argument, 0, 'p' },
 164         { "qlp-coeff-precision"       , share__required_argument, 0, 'q' },
 165         { "rice-partition-order"      , share__required_argument, 0, 'r' },
 166         { "endian"                    , share__required_argument, 0, 0 },
 167         { "channels"                  , share__required_argument, 0, 0 },
 168         { "bps"                       , share__required_argument, 0, 0 },
 169         { "sample-rate"               , share__required_argument, 0, 0 },
 170         { "sign"                      , share__required_argument, 0, 0 },
 171         { "input-size"                , share__required_argument, 0, 0 },
 172
 173         /*
 174          * analysis options
 175          */
 176         { "residual-gnuplot", share__no_argument, 0, 0 },
 177         { "residual-text", share__no_argument, 0, 0 },
 178
 179         /*
 180          * negatives
 181          */
 182         { "no-decode-through-errors"  , share__no_argument, 0, 0 },
 183         { "no-silent"                 , share__no_argument, 0, 0 },
 184         { "no-force"                  , share__no_argument, 0, 0 },
 185         { "no-seektable"              , share__no_argument, 0, 0 },
 186         { "no-delete-input-file"      , share__no_argument, 0, 0 },
 187         { "no-replay-gain"            , share__no_argument, 0, 0 },
 188         { "no-sector-align"           , share__no_argument, 0, 0 },
 189         { "no-lax"                    , share__no_argument, 0, 0 },
 190 #if FLAC__HAS_OGG
 191         { "no-ogg"                    , share__no_argument, 0, 0 },
 192 #endif
 193         { "no-exhaustive-model-search", share__no_argument, 0, 0 },
 194         { "no-mid-side"               , share__no_argument, 0, 0 },
 195         { "no-adaptive-mid-side"      , share__no_argument, 0, 0 },
 196         { "no-qlp-coeff-prec-search"  , share__no_argument, 0, 0 },
 197         { "no-padding"                , share__no_argument, 0, 0 },
 198         { "no-verify"                 , share__no_argument, 0, 0 },
 199         { "no-residual-gnuplot"       , share__no_argument, 0, 0 },
 200         { "no-residual-text"          , share__no_argument, 0, 0 },
 201         /*
 202          * undocumented debugging options for the test suite
 203          */
 204         { "disable-constant-subframes", share__no_argument, 0, 0 },
 205         { "disable-fixed-subframes"   , share__no_argument, 0, 0 },
 206         { "disable-verbatim-subframes", share__no_argument, 0, 0 },
 207
 208         {0, 0, 0, 0}
 209 };
 210
 211
 212 /*
 213  * global to hold command-line option values
 214  */
 215
 216 static struct {
 217         FLAC__bool show_help;
 218         FLAC__bool show_explain;
 219         FLAC__bool show_version;
 220         FLAC__bool mode_decode;
 221         FLAC__bool verify;
 222         FLAC__bool force_file_overwrite;
 223         FLAC__bool continue_through_decode_errors;
 224         replaygain_synthesis_spec_t replaygain_synthesis_spec;
 225         FLAC__bool lax;
 226         FLAC__bool test_only;
 227         FLAC__bool analyze;
 228         FLAC__bool use_ogg;
 229         FLAC__bool has_serial_number; /* true iff --serial-number was used */
 230         long serial_number; /* this is the Ogg serial number and is unused for native FLAC */
 231         FLAC__bool force_to_stdout;
 232         FLAC__bool force_aiff_format;
 233         FLAC__bool force_raw_format;
 234         FLAC__bool delete_input;
 235         FLAC__bool replay_gain;
 236         FLAC__bool sector_align;
 237         const char *cmdline_forced_outfilename;
 238         const char *output_prefix;
 239         analysis_options aopts;
 240         int padding; /* -1 => no -P options were given, 0 => -P- was given, else -P value */
 241         size_t num_compression_settings;
 242         compression_setting_t compression_settings[64]; /* bad MAGIC NUMBER but buffer overflow is checked */
 243         const char *skip_specification;
 244         const char *until_specification;
 245         const char *cue_specification;
 246         int format_is_big_endian;
 247         int format_is_unsigned_samples;
 248         int format_channels;
 249         int format_bps;
 250         int format_sample_rate;
 251         off_t format_input_size;
 252         char requested_seek_points[5000]; /* bad MAGIC NUMBER but buffer overflow is checked */
 253         int num_requested_seek_points; /* -1 => no -S options were given, 0 => -S- was given */
 254         const char *cuesheet_filename;
 255         FLAC__bool cued_seekpoints;
 256         FLAC__bool channel_map_none; /* --channel-map=none specified, eventually will expand to take actual channel map */
 257
 258         unsigned num_files;
 259         char **filenames;
 260
 261         FLAC__StreamMetadata *vorbis_comment;
 262         FLAC__StreamMetadata *pictures[64];
 263         unsigned num_pictures;
 264
 265         struct {
 266                 FLAC__bool disable_constant_subframes;
 267                 FLAC__bool disable_fixed_subframes;
 268                 FLAC__bool disable_verbatim_subframes;
 269         } debug;
 270 } option_values;
 271
 272
 273 /*
 274  * miscellaneous globals
 275  */
 276
 277 static FLAC__int32 align_reservoir_0[588], align_reservoir_1[588]; /* for carrying over samples from --sector-align */
 278 static FLAC__int32 *align_reservoir[2] = { align_reservoir_0, align_reservoir_1 };
 279 static unsigned align_reservoir_samples = 0; /* 0 .. 587 */
 280
 281
 282 int main(int argc, char *argv[])
 283 {
 284         int retval = 0;
 285
 286 #ifdef __EMX__
 287         _response(&argc, &argv);
 288         _wildcard(&argc, &argv);
 289 #endif
 290
 291         srand(time(0));
 292         setlocale(LC_ALL, "");
 293         if(!init_options()) {
 294                 flac__utils_printf(stderr, 1, "ERROR: allocating memory\n");
 295                 retval = 1;
 296         }
 297         else {
 298                 if((retval = parse_options(argc, argv)) == 0)
 299                         retval = do_it();
 300         }
 301
 302         free_options();
 303
 304         return retval;
 305 }
 306
 307 int do_it()
 308 {
 309         int retval = 0;
 310
 311         if(option_values.show_version) {
 312                 show_version();
 313                 return 0;
 314         }
 315         else if(option_values.show_explain) {
 316                 show_explain();
 317                 return 0;
 318         }
 319         else if(option_values.show_help) {
 320                 show_help();
 321                 return 0;
 322         }
 323         else {
 324                 if(option_values.num_files == 0) {
 325                         if(flac__utils_verbosity_ >= 1)
 326                                 short_usage();
 327                         return 0;
 328                 }
 329
 330                 /*
 331                  * tweak options; validate the values
 332                  */
 333                 if(!option_values.mode_decode) {
 334                         if(0 != option_values.cue_specification)
 335                                 return usage_error("ERROR: --cue is not allowed in test mode\n");
 336                 }
 337                 else {
 338                         if(option_values.test_only) {
 339                                 if(0 != option_values.skip_specification)
 340                                         return usage_error("ERROR: --skip is not allowed in test mode\n");
 341                                 if(0 != option_values.until_specification)
 342                                         return usage_error("ERROR: --until is not allowed in test mode\n");
 343                                 if(0 != option_values.cue_specification)
 344                                         return usage_error("ERROR: --cue is not allowed in test mode\n");
 345                                 if(0 != option_values.analyze)
 346                                         return usage_error("ERROR: analysis mode (-a/--analyze) and test mode (-t/--test) cannot be used together\n");
 347                         }
 348                 }
 349
 350                 if(0 != option_values.cue_specification && (0 != option_values.skip_specification || 0 != option_values.until_specification))
 351                         return usage_error("ERROR: --cue may not be combined with --skip or --until\n");
 352
 353                 if(option_values.format_channels >= 0) {
 354                         if(option_values.format_channels == 0 || (unsigned)option_values.format_channels > FLAC__MAX_CHANNELS)
 355                                 return usage_error("ERROR: invalid number of channels '%u', must be > 0 and <= %u\n", option_values.format_channels, FLAC__MAX_CHANNELS);
 356                 }
 357                 if(option_values.format_bps >= 0) {
 358                         if(option_values.format_bps != 8 && option_values.format_bps != 16 && option_values.format_bps != 24)
 359                                 return usage_error("ERROR: invalid bits per sample '%u' (must be 8/16/24)\n", option_values.format_bps);
 360                 }
 361                 if(option_values.format_sample_rate >= 0) {
 362                         if(!FLAC__format_sample_rate_is_valid(option_values.format_sample_rate))
 363                                 return usage_error("ERROR: invalid sample rate '%u', must be > 0 and <= %u\n", option_values.format_sample_rate, FLAC__MAX_SAMPLE_RATE);
 364                 }
 365                 if(option_values.force_raw_format && option_values.force_aiff_format)
 366                         return usage_error("ERROR: only one of --force-raw-format and --force-aiff-format allowed\n");
 367                 if(option_values.mode_decode) {
 368                         if(!option_values.force_raw_format) {
 369                                 if(option_values.format_is_big_endian >= 0)
 370                                         return usage_error("ERROR: --endian only allowed with --force-raw-format\n");
 371                                 if(option_values.format_is_unsigned_samples >= 0)
 372                                         return usage_error("ERROR: --sign only allowed with --force-raw-format\n");
 373                         }
 374                         if(option_values.format_channels >= 0)
 375                                 return usage_error("ERROR: --channels not allowed with --decode\n");
 376                         if(option_values.format_bps >= 0)
 377                                 return usage_error("ERROR: --bps not allowed with --decode\n");
 378                         if(option_values.format_sample_rate >= 0)
 379                                 return usage_error("ERROR: --sample-rate not allowed with --decode\n");
 380                 }
 381
 382                 if(option_values.sector_align) {
 383                         if(option_values.mode_decode)
 384                                 return usage_error("ERROR: --sector-align only allowed for encoding\n");
 385                         if(0 != option_values.skip_specification)
 386                                 return usage_error("ERROR: --sector-align not allowed with --skip\n");
 387                         if(0 != option_values.until_specification)
 388                                 return usage_error("ERROR: --sector-align not allowed with --until\n");
 389                         if(0 != option_values.cue_specification)
 390                                 return usage_error("ERROR: --sector-align not allowed with --cue\n");
 391                         if(option_values.format_channels >= 0 && option_values.format_channels != 2)
 392                                 return usage_error("ERROR: --sector-align can only be done with stereo input\n");
 393                         if(option_values.format_bps >= 0 && option_values.format_bps != 16)
 394                                 return usage_error("ERROR: --sector-align can only be done with 16-bit samples\n");
 395                         if(option_values.format_sample_rate >= 0 && option_values.format_sample_rate != 44100)
 396                                 return usage_error("ERROR: --sector-align can only be done with a sample rate of 44100\n");
 397                 }
 398                 if(option_values.replay_gain) {
 399                         if(option_values.force_to_stdout)
 400                                 return usage_error("ERROR: --replay-gain not allowed with -c/--stdout\n");
 401                         if(option_values.mode_decode)
 402                                 return usage_error("ERROR: --replay-gain only allowed for encoding\n");
 403                         if(option_values.format_channels > 2)
 404                                 return usage_error("ERROR: --replay-gain can only be done with mono/stereo input\n");
 405                         if(option_values.format_sample_rate >= 0 && !grabbag__replaygain_is_valid_sample_frequency(option_values.format_sample_rate))
 406                                 return usage_error("ERROR: invalid sample rate used with --replay-gain\n");
 407                         /*
 408                          * We want to reserve padding space for the ReplayGain
 409                          * tags that we will set later, to avoid rewriting the
 410                          * whole file.
 411                          */
 412                         if(option_values.padding <= 0) {
 413                                 flac__utils_printf(stderr, 1, "NOTE: --replay-gain may leave a small PADDING block even with --no-padding\n");
 414                                 option_values.padding = GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
 415                         }
 416                         else {
 417                                 option_values.padding += GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
 418                         }
 419                 }
 420                 if(option_values.num_files > 1 && option_values.cmdline_forced_outfilename) {
 421                         return usage_error("ERROR: -o/--output-name cannot be used with multiple files\n");
 422                 }
 423                 if(option_values.cmdline_forced_outfilename && option_values.output_prefix) {
 424                         return usage_error("ERROR: --output-prefix conflicts with -o/--output-name\n");
 425                 }
 426                 if(!option_values.mode_decode && 0 != option_values.cuesheet_filename && option_values.num_files > 1) {
 427                         return usage_error("ERROR: --cuesheet cannot be used when encoding multiple files\n");
 428                 }
 429         }
 430
 431         flac__utils_printf(stderr, 2, "\n");
 432         flac__utils_printf(stderr, 2, "flac %s, Copyright (C) 2000,2001,2002,2003,2004,2005,2006  Josh Coalson\n", FLAC__VERSION_STRING);
 433         flac__utils_printf(stderr, 2, "flac comes with ABSOLUTELY NO WARRANTY.  This is free software, and you are\n");
 434         flac__utils_printf(stderr, 2, "welcome to redistribute it under certain conditions.  Type `flac' for details.\n\n");
 435
 436         if(option_values.mode_decode) {
 437                 FLAC__bool first = true;
 438
 439                 if(option_values.num_files == 0) {
 440                         retval = decode_file("-");
 441                 }
 442                 else {
 443                         unsigned i;
 444                         if(option_values.num_files > 1)
 445                                 option_values.cmdline_forced_outfilename = 0;
 446                         for(i = 0, retval = 0; i < option_values.num_files; i++) {
 447                                 if(0 == strcmp(option_values.filenames[i], "-") && !first)
 448                                         continue;
 449                                 retval |= decode_file(option_values.filenames[i]);
 450                                 first = false;
 451                         }
 452                 }
 453         }
 454         else { /* encode */
 455                 FLAC__bool first = true;
 456
 457                 if(option_values.num_files == 0) {
 458                         retval = encode_file("-", first, true);
 459                 }
 460                 else {
 461                         unsigned i;
 462                         if(option_values.num_files > 1)
 463                                 option_values.cmdline_forced_outfilename = 0;
 464                         for(i = 0, retval = 0; i < option_values.num_files; i++) {
 465                                 if(0 == strcmp(option_values.filenames[i], "-") && !first)
 466                                         continue;
 467                                 retval |= encode_file(option_values.filenames[i], first, i == (option_values.num_files-1));
 468                                 first = false;
 469                         }
 470                         if(option_values.replay_gain && retval == 0) {
 471                                 float album_gain, album_peak;
 472                                 grabbag__replaygain_get_album(&album_gain, &album_peak);
 473                                 for(i = 0; i < option_values.num_files; i++) {
 474                                         const char *error, *outfilename = get_encoded_outfilename(option_values.filenames[i]);
 475                                         if(0 == outfilename) {
 476                                                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", option_values.filenames[i]);
 477                                                 return 1;
 478                                         }
 479                                         if(0 == strcmp(option_values.filenames[i], "-")) {
 480                                                 FLAC__ASSERT(0);
 481                                                 /* double protection */
 482                                                 flac__utils_printf(stderr, 1, "internal error\n");
 483                                                 return 2;
 484                                         }
 485                                         if(0 != (error = grabbag__replaygain_store_to_file_album(outfilename, album_gain, album_peak, /*preserve_modtime=*/true))) {
 486                                                 flac__utils_printf(stderr, 1, "%s: ERROR writing ReplayGain album tags (%s)\n", outfilename, error);
 487                                                 retval = 1;
 488                                         }
 489                                 }
 490                         }
 491                 }
 492         }
 493
 494         return retval;
 495 }
 496
 497 FLAC__bool init_options()
 498 {
 499         option_values.show_help = false;
 500         option_values.show_explain = false;
 501         option_values.mode_decode = false;
 502         option_values.verify = false;
 503         option_values.force_file_overwrite = false;
 504         option_values.continue_through_decode_errors = false;
 505         option_values.replaygain_synthesis_spec.apply = false;
 506         option_values.replaygain_synthesis_spec.use_album_gain = true;
 507         option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__HARD;
 508         option_values.replaygain_synthesis_spec.noise_shaping = NOISE_SHAPING_LOW;
 509         option_values.replaygain_synthesis_spec.preamp = 0.0;
 510         option_values.lax = false;
 511         option_values.test_only = false;
 512         option_values.analyze = false;
 513         option_values.use_ogg = false;
 514         option_values.has_serial_number = false;
 515         option_values.serial_number = 0;
 516         option_values.force_to_stdout = false;
 517         option_values.force_aiff_format = false;
 518         option_values.force_raw_format = false;
 519         option_values.delete_input = false;
 520         option_values.replay_gain = false;
 521         option_values.sector_align = false;
 522         option_values.cmdline_forced_outfilename = 0;
 523         option_values.output_prefix = 0;
 524         option_values.aopts.do_residual_text = false;
 525         option_values.aopts.do_residual_gnuplot = false;
 526         option_values.padding = -1;
 527         option_values.num_compression_settings = 1;
 528         option_values.compression_settings[0].type = CST_COMPRESSION_LEVEL;
 529         option_values.compression_settings[0].value.t_unsigned = 5;
 530         option_values.skip_specification = 0;
 531         option_values.until_specification = 0;
 532         option_values.cue_specification = 0;
 533         option_values.format_is_big_endian = -1;
 534         option_values.format_is_unsigned_samples = -1;
 535         option_values.format_channels = -1;
 536         option_values.format_bps = -1;
 537         option_values.format_sample_rate = -1;
 538         option_values.format_input_size = (off_t)(-1);
 539         option_values.requested_seek_points[0] = '\0';
 540         option_values.num_requested_seek_points = -1;
 541         option_values.cuesheet_filename = 0;
 542         option_values.cued_seekpoints = true;
 543         option_values.channel_map_none = false;;
 544
 545         option_values.num_files = 0;
 546         option_values.filenames = 0;
 547
 548         if(0 == (option_values.vorbis_comment = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT)))
 549                 return false;
 550         option_values.num_pictures = 0;
 551
 552         option_values.debug.disable_constant_subframes = false;
 553         option_values.debug.disable_fixed_subframes = false;
 554         option_values.debug.disable_verbatim_subframes = false;
 555
 556         return true;
 557 }
 558
 559 int parse_options(int argc, char *argv[])
 560 {
 561         int short_option;
 562         int option_index = 1;
 563         FLAC__bool had_error = false;
 564         const char *short_opts = "0123456789aA:b:cdefFhHl:mMo:pP:q:r:sS:tT:vV";
 565
 566         while ((short_option = share__getopt_long(argc, argv, short_opts, long_options_, &option_index)) != -1) {
 567                 switch (short_option) {
 568                         case 0: /* long option with no equivalent short option */
 569                                 had_error |= (parse_option(short_option, long_options_[option_index].name, share__optarg) != 0);
 570                                 break;
 571                         case '?':
 572                         case ':':
 573                                 had_error = true;
 574                                 break;
 575                         default: /* short option */
 576                                 had_error |= (parse_option(short_option, 0, share__optarg) != 0);
 577                                 break;
 578                 }
 579         }
 580
 581         if(had_error) {
 582                 return 1;
 583         }
 584
 585         FLAC__ASSERT(share__optind <= argc);
 586
 587         option_values.num_files = argc - share__optind;
 588
 589         if(option_values.num_files > 0) {
 590                 unsigned i = 0;
 591                 if(0 == (option_values.filenames = (char**)malloc(sizeof(char*) * option_values.num_files)))
 592                         die("out of memory allocating space for file names list");
 593                 while(share__optind < argc)
 594                         option_values.filenames[i++] = local_strdup(argv[share__optind++]);
 595         }
 596
 597         return 0;
 598 }
 599
 600 int parse_option(int short_option, const char *long_option, const char *option_argument)
 601 {
 602         const char *violation;
 603         char *p;
 604         int i;
 605
 606         if(short_option == 0) {
 607                 FLAC__ASSERT(0 != long_option);
 608                 if(0 == strcmp(long_option, "totally-silent")) {
 609                         flac__utils_verbosity_ = 0;
 610                 }
 611                 else if(0 == strcmp(long_option, "delete-input-file")) {
 612                         option_values.delete_input = true;
 613                 }
 614                 else if(0 == strcmp(long_option, "output-prefix")) {
 615                         FLAC__ASSERT(0 != option_argument);
 616                         option_values.output_prefix = option_argument;
 617                 }
 618                 else if(0 == strcmp(long_option, "skip")) {
 619                         FLAC__ASSERT(0 != option_argument);
 620                         option_values.skip_specification = option_argument;
 621                 }
 622                 else if(0 == strcmp(long_option, "until")) {
 623                         FLAC__ASSERT(0 != option_argument);
 624                         option_values.until_specification = option_argument;
 625                 }
 626                 else if(0 == strcmp(long_option, "input-size")) {
 627                         FLAC__ASSERT(0 != option_argument);
 628                         {
 629                                 char *end;
 630 #ifdef _MSC_VER
 631                                 FLAC__int64 i;
 632                                 i = local__strtoll(option_argument, &end);
 633 #else
 634                                 long long i;
 635                                 i = strtoll(option_argument, &end, 10);
 636 #endif
 637                                 if(0 == strlen(option_argument) || *end)
 638                                         return usage_error("ERROR: --%s must be a number\n", long_option);
 639                                 option_values.format_input_size = (off_t)i;
 640                                 if(option_values.format_input_size != i) /* check if off_t is smaller than long long */
 641                                         return usage_error("ERROR: --%s too large; this flac does not support filesizes over 2GB\n", long_option);
 642                                 if(option_values.format_input_size <= 0)
 643                                         return usage_error("ERROR: --%s must be > 0\n", long_option);
 644                         }
 645                 }
 646                 else if(0 == strcmp(long_option, "cue")) {
 647                         FLAC__ASSERT(0 != option_argument);
 648                         option_values.cue_specification = option_argument;
 649                 }
 650                 else if(0 == strcmp(long_option, "apply-replaygain-which-is-not-lossless")) {
 651                         option_values.replaygain_synthesis_spec.apply = true;
 652                         if (0 != option_argument) {
 653                                 char *p;
 654                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__NONE;
 655                                 option_values.replaygain_synthesis_spec.noise_shaping = NOISE_SHAPING_NONE;
 656                                 option_values.replaygain_synthesis_spec.preamp = strtod(option_argument, &p);
 657                                 for ( ; *p; p++) {
 658                                         if (*p == 'a')
 659                                                 option_values.replaygain_synthesis_spec.use_album_gain = true;
 660                                         else if (*p == 't')
 661                                                 option_values.replaygain_synthesis_spec.use_album_gain = false;
 662                                         else if (*p == 'l')
 663                                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__PEAK;
 664                                         else if (*p == 'L')
 665                                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__HARD;
 666                                         else if (*p == 'n' && p[1] >= '0' && p[1] <= '3') {
 667                                                 option_values.replaygain_synthesis_spec.noise_shaping = p[1] - '0';
 668                                                 p++;
 669                                         }
 670                                         else
 671                                                 return usage_error("ERROR: bad specification string \"%s\" for --%s\n", option_argument, long_option);
 672                                 }
 673                         }
 674                 }
 675                 else if(0 == strcmp(long_option, "channel-map")) {
 676                         if (0 == option_argument || strcmp(option_argument, "none"))
 677                                 return usage_error("ERROR: only --channel-map=none currently supported\n");
 678                         option_values.channel_map_none = true;
 679                 }
 680                 else if(0 == strcmp(long_option, "cuesheet")) {
 681                         FLAC__ASSERT(0 != option_argument);
 682                         option_values.cuesheet_filename = option_argument;
 683                 }
 684                 else if(0 == strcmp(long_option, "picture")) {
 685                         const unsigned max_pictures = sizeof(option_values.pictures)/sizeof(option_values.pictures[0]);
 686                         FLAC__ASSERT(0 != option_argument);
 687                         if(option_values.num_pictures >= max_pictures)
 688                                 return usage_error("ERROR: too many --picture arguments, only %u allowed\n", max_pictures);
 689                         if(0 == (option_values.pictures[option_values.num_pictures] = grabbag__picture_parse_specification(option_argument, &violation)))
 690                                 return usage_error("ERROR: (--picture) %s\n", violation);
 691                         option_values.num_pictures++;
 692                 }
 693                 else if(0 == strcmp(long_option, "tag-from-file")) {
 694                         FLAC__ASSERT(0 != option_argument);
 695                         if(!flac__vorbiscomment_add(option_values.vorbis_comment, option_argument, /*value_from_file=*/true, &violation))
 696                                 return usage_error("ERROR: (--tag-from-file) %s\n", violation);
 697                 }
 698                 else if(0 == strcmp(long_option, "no-cued-seekpoints")) {
 699                         option_values.cued_seekpoints = false;
 700                 }
 701                 else if(0 == strcmp(long_option, "force-aiff-format")) {
 702                         option_values.force_aiff_format = true;
 703                 }
 704                 else if(0 == strcmp(long_option, "force-raw-format")) {
 705                         option_values.force_raw_format = true;
 706                 }
 707                 else if(0 == strcmp(long_option, "lax")) {
 708                         option_values.lax = true;
 709                 }
 710                 else if(0 == strcmp(long_option, "replay-gain")) {
 711                         option_values.replay_gain = true;
 712                 }
 713                 else if(0 == strcmp(long_option, "sector-align")) {
 714                         option_values.sector_align = true;
 715                 }
 716 #if FLAC__HAS_OGG
 717                 else if(0 == strcmp(long_option, "ogg")) {
 718                         option_values.use_ogg = true;
 719                 }
 720                 else if(0 == strcmp(long_option, "serial-number")) {
 721                         option_values.has_serial_number = true;
 722                         option_values.serial_number = atol(option_argument);
 723                 }
 724 #endif
 725                 else if(0 == strcmp(long_option, "endian")) {
 726                         FLAC__ASSERT(0 != option_argument);
 727                         if(0 == strncmp(option_argument, "big", strlen(option_argument)))
 728                                 option_values.format_is_big_endian = true;
 729                         else if(0 == strncmp(option_argument, "little", strlen(option_argument)))
 730                                 option_values.format_is_big_endian = false;
 731                         else
 732                                 return usage_error("ERROR: argument to --endian must be \"big\" or \"little\"\n");
 733                 }
 734                 else if(0 == strcmp(long_option, "channels")) {
 735                         FLAC__ASSERT(0 != option_argument);
 736                         option_values.format_channels = atoi(option_argument);
 737                 }
 738                 else if(0 == strcmp(long_option, "bps")) {
 739                         FLAC__ASSERT(0 != option_argument);
 740                         option_values.format_bps = atoi(option_argument);
 741                 }
 742                 else if(0 == strcmp(long_option, "sample-rate")) {
 743                         FLAC__ASSERT(0 != option_argument);
 744                         option_values.format_sample_rate = atoi(option_argument);
 745                 }
 746                 else if(0 == strcmp(long_option, "sign")) {
 747                         FLAC__ASSERT(0 != option_argument);
 748                         if(0 == strncmp(option_argument, "signed", strlen(option_argument)))
 749                                 option_values.format_is_unsigned_samples = false;
 750                         else if(0 == strncmp(option_argument, "unsigned", strlen(option_argument)))
 751                                 option_values.format_is_unsigned_samples = true;
 752                         else
 753                                 return usage_error("ERROR: argument to --sign must be \"signed\" or \"unsigned\"\n");
 754                 }
 755                 else if(0 == strcmp(long_option, "residual-gnuplot")) {
 756                         option_values.aopts.do_residual_gnuplot = true;
 757                 }
 758                 else if(0 == strcmp(long_option, "residual-text")) {
 759                         option_values.aopts.do_residual_text = true;
 760                 }
 761                 /*
 762                  * negatives
 763                  */
 764                 else if(0 == strcmp(long_option, "no-decode-through-errors")) {
 765                         option_values.continue_through_decode_errors = false;
 766                 }
 767                 else if(0 == strcmp(long_option, "no-silent")) {
 768                         flac__utils_verbosity_ = 2;
 769                 }
 770                 else if(0 == strcmp(long_option, "no-force")) {
 771                         option_values.force_file_overwrite = false;
 772                 }
 773                 else if(0 == strcmp(long_option, "no-seektable")) {
 774                         option_values.num_requested_seek_points = 0;
 775                         option_values.requested_seek_points[0] = '\0';
 776                 }
 777                 else if(0 == strcmp(long_option, "no-delete-input-file")) {
 778                         option_values.delete_input = false;
 779                 }
 780                 else if(0 == strcmp(long_option, "no-replay-gain")) {
 781                         option_values.replay_gain = false;
 782                 }
 783                 else if(0 == strcmp(long_option, "no-sector-align")) {
 784                         option_values.sector_align = false;
 785                 }
 786                 else if(0 == strcmp(long_option, "no-lax")) {
 787                         option_values.lax = false;
 788                 }
 789 #if FLAC__HAS_OGG
 790                 else if(0 == strcmp(long_option, "no-ogg")) {
 791                         option_values.use_ogg = false;
 792                 }
 793 #endif
 794                 else if(0 == strcmp(long_option, "no-exhaustive-model-search")) {
 795                         add_compression_setting_bool(CST_DO_EXHAUSTIVE_MODEL_SEARCH, false);
 796                 }
 797                 else if(0 == strcmp(long_option, "no-mid-side")) {
 798                         add_compression_setting_bool(CST_DO_MID_SIDE, false);
 799                         add_compression_setting_bool(CST_LOOSE_MID_SIDE, false);
 800                 }
 801                 else if(0 == strcmp(long_option, "no-adaptive-mid-side")) {
 802                         add_compression_setting_bool(CST_DO_MID_SIDE, false);
 803                         add_compression_setting_bool(CST_LOOSE_MID_SIDE, false);
 804                 }
 805                 else if(0 == strcmp(long_option, "no-qlp-coeff-prec-search")) {
 806                         add_compression_setting_bool(CST_DO_QLP_COEFF_PREC_SEARCH, false);
 807                 }
 808                 else if(0 == strcmp(long_option, "no-padding")) {
 809                         option_values.padding = 0;
 810                 }
 811                 else if(0 == strcmp(long_option, "no-verify")) {
 812                         option_values.verify = false;
 813                 }
 814                 else if(0 == strcmp(long_option, "no-residual-gnuplot")) {
 815                         option_values.aopts.do_residual_gnuplot = false;
 816                 }
 817                 else if(0 == strcmp(long_option, "no-residual-text")) {
 818                         option_values.aopts.do_residual_text = false;
 819                 }
 820                 else if(0 == strcmp(long_option, "disable-constant-subframes")) {
 821                         option_values.debug.disable_constant_subframes = true;
 822                 }
 823                 else if(0 == strcmp(long_option, "disable-fixed-subframes")) {
 824                         option_values.debug.disable_fixed_subframes = true;
 825                 }
 826                 else if(0 == strcmp(long_option, "disable-verbatim-subframes")) {
 827                         option_values.debug.disable_verbatim_subframes = true;
 828                 }
 829         }
 830         else {
 831                 switch(short_option) {
 832                         case 'h':
 833                                 option_values.show_help = true;
 834                                 break;
 835                         case 'H':
 836                                 option_values.show_explain = true;
 837                                 break;
 838                         case 'v':
 839                                 option_values.show_version = true;
 840                                 break;
 841                         case 'd':
 842                                 option_values.mode_decode = true;
 843                                 break;
 844                         case 'a':
 845                                 option_values.mode_decode = true;
 846                                 option_values.analyze = true;
 847                                 break;
 848                         case 't':
 849                                 option_values.mode_decode = true;
 850                                 option_values.test_only = true;
 851                                 break;
 852                         case 'c':
 853                                 option_values.force_to_stdout = true;
 854                                 break;
 855                         case 's':
 856                                 flac__utils_verbosity_ = 1;
 857                                 break;
 858                         case 'f':
 859                                 option_values.force_file_overwrite = true;
 860                                 break;
 861                         case 'o':
 862                                 FLAC__ASSERT(0 != option_argument);
 863                                 option_values.cmdline_forced_outfilename = option_argument;
 864                                 break;
 865                         case 'F':
 866                                 option_values.continue_through_decode_errors = true;
 867                                 break;
 868                         case 'T':
 869                                 FLAC__ASSERT(0 != option_argument);
 870                                 if(!flac__vorbiscomment_add(option_values.vorbis_comment, option_argument, /*value_from_file=*/false, &violation))
 871                                         return usage_error("ERROR: (-T/--tag) %s\n", violation);
 872                                 break;
 873                         case '0':
 874                         case '1':
 875                         case '2':
 876                         case '3':
 877                         case '4':
 878                         case '5':
 879                         case '6':
 880                         case '7':
 881                         case '8':
 882                                 add_compression_setting_unsigned(CST_COMPRESSION_LEVEL, short_option-'0');
 883                                 break;
 884                         case '9':
 885                                 return usage_error("ERROR: compression level '9' is reserved\n");
 886                         case 'V':
 887                                 option_values.verify = true;
 888                                 break;
 889                         case 'S':
 890                                 FLAC__ASSERT(0 != option_argument);
 891                                 if(0 == strcmp(option_argument, "-")) {
 892                                         option_values.num_requested_seek_points = 0;
 893                                         option_values.requested_seek_points[0] = '\0';
 894                                 }
 895                                 else {
 896                                         if(option_values.num_requested_seek_points < 0)
 897                                                 option_values.num_requested_seek_points = 0;
 898                                         option_values.num_requested_seek_points++;
 899                                         if(strlen(option_values.requested_seek_points)+strlen(option_argument)+2 >= sizeof(option_values.requested_seek_points)) {
 900                                                 return usage_error("ERROR: too many seekpoints requested\n");
 901                                         }
 902                                         else {
 903                                                 strcat(option_values.requested_seek_points, option_argument);
 904                                                 strcat(option_values.requested_seek_points, ";");
 905                                         }
 906                                 }
 907                                 break;
 908                         case 'P':
 909                                 FLAC__ASSERT(0 != option_argument);
 910                                 option_values.padding = atoi(option_argument);
 911                                 if(option_values.padding < 0)
 912                                         return usage_error("ERROR: argument to -%c must be >= 0; for no padding use -%c-\n", short_option, short_option);
 913                                 break;
 914                         case 'b':
 915                                 FLAC__ASSERT(0 != option_argument);
 916                                 i = atoi(option_argument);
 917                                 if((i < (int)FLAC__MIN_BLOCK_SIZE || i > (int)FLAC__MAX_BLOCK_SIZE))
 918                                         return usage_error("ERROR: invalid blocksize (-%c) '%d', must be >= %u and <= %u\n", short_option, i, FLAC__MIN_BLOCK_SIZE, FLAC__MAX_BLOCK_SIZE);
 919                                 add_compression_setting_unsigned(CST_BLOCKSIZE, (unsigned)i);
 920                                 break;
 921                         case 'e':
 922                                 add_compression_setting_bool(CST_DO_EXHAUSTIVE_MODEL_SEARCH, true);
 923                                 break;
 924                         case 'E':
 925                                 add_compression_setting_bool(CST_DO_ESCAPE_CODING, true);
 926                                 break;
 927                         case 'l':
 928                                 FLAC__ASSERT(0 != option_argument);
 929                                 i = atoi(option_argument);
 930                                 if((i < 0 || i > (int)FLAC__MAX_LPC_ORDER))
 931                                         return usage_error("ERROR: invalid LPC order (-%c) '%d', must be >= %u and <= %u\n", short_option, i, 0, FLAC__MAX_LPC_ORDER);
 932                                 add_compression_setting_unsigned(CST_MAX_LPC_ORDER, (unsigned)i);
 933                                 break;
 934                         case 'A':
 935                                 FLAC__ASSERT(0 != option_argument);
 936                                 add_compression_setting_string(CST_APODIZATION, option_argument);
 937                                 break;
 938                         case 'm':
 939                                 add_compression_setting_bool(CST_DO_MID_SIDE, true);
 940                                 add_compression_setting_bool(CST_LOOSE_MID_SIDE, false);
 941                                 break;
 942                         case 'M':
 943                                 add_compression_setting_bool(CST_DO_MID_SIDE, true);
 944                                 add_compression_setting_bool(CST_LOOSE_MID_SIDE, true);
 945                                 break;
 946                         case 'p':
 947                                 add_compression_setting_bool(CST_DO_QLP_COEFF_PREC_SEARCH, true);
 948                                 break;
 949                         case 'q':
 950                                 FLAC__ASSERT(0 != option_argument);
 951                                 i = atoi(option_argument);
 952                                 if(i < 0 || (i > 0 && (i < (int)FLAC__MIN_QLP_COEFF_PRECISION || i > (int)FLAC__MAX_QLP_COEFF_PRECISION)))
 953                                         return usage_error("ERROR: invalid value '%d' for qlp coeff precision (-%c), must be 0 or between %u and %u, inclusive\n", i, short_option, FLAC__MIN_QLP_COEFF_PRECISION, FLAC__MAX_QLP_COEFF_PRECISION);
 954                                 add_compression_setting_unsigned(CST_QLP_COEFF_PRECISION, (unsigned)i);
 955                                 break;
 956                         case 'r':
 957                                 FLAC__ASSERT(0 != option_argument);
 958                                 p = strchr(option_argument, ',');
 959                                 if(0 == p) {
 960                                         add_compression_setting_unsigned(CST_MIN_RESIDUAL_PARTITION_ORDER, 0);
 961                                         i = atoi(option_argument);
 962                                         if(i < 0)
 963                                                 return usage_error("ERROR: invalid value '%d' for residual partition order (-%c), must be between 0 and %u, inclusive\n", i, short_option, FLAC__MAX_RICE_PARTITION_ORDER);
 964                                         add_compression_setting_unsigned(CST_MAX_RESIDUAL_PARTITION_ORDER, (unsigned)i);
 965                                 }
 966                                 else {
 967                                         i = atoi(option_argument);
 968                                         if(i < 0)
 969                                                 return usage_error("ERROR: invalid value '%d' for min residual partition order (-%c), must be between 0 and %u, inclusive\n", i, short_option, FLAC__MAX_RICE_PARTITION_ORDER);
 970                                         add_compression_setting_unsigned(CST_MIN_RESIDUAL_PARTITION_ORDER, (unsigned)i);
 971                                         i = atoi(++p);
 972                                         if(i < 0)
 973                                                 return usage_error("ERROR: invalid value '%d' for max residual partition order (-%c), must be between 0 and %u, inclusive\n", i, short_option, FLAC__MAX_RICE_PARTITION_ORDER);
 974                                         add_compression_setting_unsigned(CST_MAX_RESIDUAL_PARTITION_ORDER, (unsigned)i);
 975                                 }
 976                                 break;
 977                         case 'R':
 978                                 i = atoi(option_argument);
 979                                 if(i < 0)
 980                                         return usage_error("ERROR: invalid value '%d' for Rice parameter search distance (-%c), must be >= 0\n", i, short_option);
 981                                 add_compression_setting_unsigned(CST_RICE_PARAMETER_SEARCH_DIST, (unsigned)i);
 982                                 break;
 983                         default:
 984                                 FLAC__ASSERT(0);
 985                 }
 986         }
 987
 988         return 0;
 989 }
 990
 991 void free_options()
 992 {
 993         unsigned i;
 994         if(0 != option_values.filenames) {
 995                 for(i = 0; i < option_values.num_files; i++) {
 996                         if(0 != option_values.filenames[i])
 997                                 free(option_values.filenames[i]);
 998                 }
 999                 free(option_values.filenames);
1000         }
1001         if(0 != option_values.vorbis_comment)
1002                 FLAC__metadata_object_delete(option_values.vorbis_comment);
1003         for(i = 0; i < option_values.num_pictures; i++)
1004                 FLAC__metadata_object_delete(option_values.pictures[i]);
1005 }
1006
1007 void add_compression_setting_bool(compression_setting_type_t type, FLAC__bool value)
1008 {
1009         if(option_values.num_compression_settings >= sizeof(option_values.compression_settings)/sizeof(option_values.compression_settings[0]))
1010                 die("too many compression settings");
1011         option_values.compression_settings[option_values.num_compression_settings].type = type;
1012         option_values.compression_settings[option_values.num_compression_settings].value.t_bool = value;
1013         option_values.num_compression_settings++;
1014 }
1015
1016 void add_compression_setting_string(compression_setting_type_t type, const char *value)
1017 {
1018         if(option_values.num_compression_settings >= sizeof(option_values.compression_settings)/sizeof(option_values.compression_settings[0]))
1019                 die("too many compression settings");
1020         option_values.compression_settings[option_values.num_compression_settings].type = type;
1021         option_values.compression_settings[option_values.num_compression_settings].value.t_string = value;
1022         option_values.num_compression_settings++;
1023 }
1024
1025 void add_compression_setting_unsigned(compression_setting_type_t type, unsigned value)
1026 {
1027         if(option_values.num_compression_settings >= sizeof(option_values.compression_settings)/sizeof(option_values.compression_settings[0]))
1028                 die("too many compression settings");
1029         option_values.compression_settings[option_values.num_compression_settings].type = type;
1030         option_values.compression_settings[option_values.num_compression_settings].value.t_unsigned = value;
1031         option_values.num_compression_settings++;
1032 }
1033
1034 int usage_error(const char *message, ...)
1035 {
1036         if(flac__utils_verbosity_ >= 1) {
1037                 va_list args;
1038
1039                 FLAC__ASSERT(0 != message);
1040
1041                 va_start(args, message);
1042
1043                 (void) vfprintf(stderr, message, args);
1044
1045                 va_end(args);
1046
1047                 printf("Type \"flac\" for a usage summary or \"flac --help\" for all options\n");
1048         }
1049
1050         return 1;
1051 }
1052
1053 void show_version()
1054 {
1055         printf("flac %s\n", FLAC__VERSION_STRING);
1056 }
1057
1058 static void usage_header()
1059 {
1060         printf("===============================================================================\n");
1061         printf("flac - Command-line FLAC encoder/decoder version %s\n", FLAC__VERSION_STRING);
1062         printf("Copyright (C) 2000,2001,2002,2003,2004,2005,2006  Josh Coalson\n");
1063         printf("\n");
1064         printf("This program is free software; you can redistribute it and/or\n");
1065         printf("modify it under the terms of the GNU General Public License\n");
1066         printf("as published by the Free Software Foundation; either version 2\n");
1067         printf("of the License, or (at your option) any later version.\n");
1068         printf("\n");
1069         printf("This program is distributed in the hope that it will be useful,\n");
1070         printf("but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
1071         printf("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n");
1072         printf("GNU General Public License for more details.\n");
1073         printf("\n");
1074         printf("You should have received a copy of the GNU General Public License\n");
1075         printf("along with this program; if not, write to the Free Software\n");
1076         printf("Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.\n");
1077         printf("===============================================================================\n");
1078 }
1079
1080 static void usage_summary()
1081 {
1082         printf("Usage:\n");
1083         printf("\n");
1084         printf(" Encoding: flac [<general-options>] [<encoding/format-options>] [INPUTFILE [...]]\n");
1085         printf(" Decoding: flac -d [<general-options>] [<format-options>] [FLACFILE [...]]\n");
1086         printf("  Testing: flac -t [<general-options>] [FLACFILE [...]]\n");
1087         printf("Analyzing: flac -a [<general-options>] [<analysis-options>] [FLACFILE [...]]\n");
1088         printf("\n");
1089 }
1090
1091 void short_usage()
1092 {
1093         usage_header();
1094         printf("\n");
1095         printf("This is the short help; for all options use 'flac --help'; for even more\n");
1096         printf("instructions use 'flac --explain'\n");
1097         printf("\n");
1098         printf("To encode:\n");
1099         printf("  flac [-#] [INPUTFILE [...]]\n");
1100         printf("\n");
1101         printf("  -# is -0 (fastest compression) to -8 (highest compression); -5 is the default\n");
1102         printf("\n");
1103         printf("To decode:\n");
1104         printf("  flac -d [INPUTFILE [...]]\n");
1105         printf("\n");
1106         printf("To test:\n");
1107         printf("  flac -t [INPUTFILE [...]]\n");
1108 }
1109
1110 void show_help()
1111 {
1112         usage_header();
1113         usage_summary();
1114         printf("general options:\n");
1115         printf("  -v, --version                Show the flac version number\n");
1116         printf("  -h, --help                   Show this screen\n");
1117         printf("  -H, --explain                Show detailed explanation of usage and options\n");
1118         printf("  -d, --decode                 Decode (the default behavior is to encode)\n");
1119         printf("  -t, --test                   Same as -d except no decoded file is written\n");
1120         printf("  -a, --analyze                Same as -d except an analysis file is written\n");
1121         printf("  -c, --stdout                 Write output to stdout\n");
1122         printf("  -s, --silent                 Do not write runtime encode/decode statistics\n");
1123         printf("      --totally-silent         Do not print anything, including errors\n");
1124         printf("  -f, --force                  Force overwriting of output files\n");
1125         printf("  -o, --output-name=FILENAME   Force the output file name\n");
1126         printf("      --output-prefix=STRING   Prepend STRING to output names\n");
1127         printf("      --delete-input-file      Deletes after a successful encode/decode\n");
1128         printf("      --skip={#|mm:ss.ss}      Skip the given initial samples for each input\n");
1129         printf("      --until={#|[+|-]mm:ss.ss}  Stop at the given sample for each input file\n");
1130 #if FLAC__HAS_OGG
1131         printf("      --ogg                    Use Ogg as transport layer\n");
1132         printf("      --serial-number          Serial number to use for the FLAC stream\n");
1133 #endif
1134         printf("analysis options:\n");
1135         printf("      --residual-text          Include residual signal in text output\n");
1136         printf("      --residual-gnuplot       Generate gnuplot files of residual distribution\n");
1137         printf("decoding options:\n");
1138         printf("  -F, --decode-through-errors  Continue decoding through stream errors\n");
1139         printf("      --cue=[#.#][-[#.#]]      Set the beginning and ending cuepoints to decode\n");
1140         printf("encoding options:\n");
1141         printf("  -V, --verify                 Verify a correct encoding\n");
1142         printf("      --lax                    Allow encoder to generate non-Subset files\n");
1143         printf("      --sector-align           Align multiple files on sector boundaries\n");
1144         printf("      --replay-gain            Calculate ReplayGain & store in FLAC tags\n");
1145         printf("      --cuesheet=FILENAME      Import cuesheet and store in CUESHEET block\n");
1146         printf("      --picture=SPECIFICATION  Import picture and store in PICTURE block\n");
1147         printf("  -T, --tag=FIELD=VALUE        Add a FLAC tag; may appear multiple times\n");
1148         printf("      --tag-from-file=FIELD=FILENAME   Like --tag but gets value from file\n");
1149         printf("  -S, --seekpoint={#|X|#x|#s}  Add seek point(s)\n");
1150         printf("  -P, --padding=#              Write a PADDING block of length #\n");
1151         printf("  -0, --compression-level-0, --fast  Synonymous with -l 0 -b 1152 -r 2,2\n");
1152         printf("  -1, --compression-level-1          Synonymous with -l 0 -b 1152 -M -r 2,2\n");
1153         printf("  -2, --compression-level-2          Synonymous with -l 0 -b 1152 -m -r 3\n");
1154         printf("  -3, --compression-level-3          Synonymous with -l 6 -b 4608 -r 3,3\n");
1155         printf("  -4, --compression-level-4          Synonymous with -l 8 -b 4608 -M -r 3,3\n");
1156         printf("  -5, --compression-level-5          Synonymous with -l 8 -b 4608 -m -r 3,3\n");
1157         printf("  -6, --compression-level-6          Synonymous with -l 8 -b 4608 -m -r 4\n");
1158         printf("  -7, --compression-level-7          Synonymous with -l 8 -b 4608 -m -e -r 6\n");
1159         printf("  -8, --compression-level-8, --best  Synonymous with -l 12 -b 4608 -m -e -r 6\n");
1160         printf("  -b, --blocksize=#                  Specify blocksize in samples\n");
1161         printf("  -m, --mid-side                     Try mid-side coding for each frame\n");
1162         printf("  -M, --adaptive-mid-side            Adaptive mid-side coding for all frames\n");
1163         printf("  -e, --exhaustive-model-search      Do exhaustive model search (expensive!)\n");
1164         printf("  -A, --apodization=\"function\"       Window audio data with given the function\n");
1165         printf("  -l, --max-lpc-order=#              Max LPC order; 0 => only fixed predictors\n");
1166         printf("  -p, --qlp-coeff-precision-search   Exhaustively search LP coeff quantization\n");
1167         printf("  -q, --qlp-coeff-precision=#        Specify precision in bits\n");
1168         printf("  -r, --rice-partition-order=[#,]#   Set [min,]max residual partition order\n");
1169         printf("format options:\n");
1170         printf("      --endian={big|little}    Set byte order for samples\n");
1171         printf("      --channels=#             Number of channels\n");
1172         printf("      --bps=#                  Number of bits per sample\n");
1173         printf("      --sample-rate=#          Sample rate in Hz\n");
1174         printf("      --sign={signed|unsigned} Sign of samples\n");
1175         printf("      --input-size=#           Size of the raw input in bytes\n");
1176         printf("      --force-aiff-format      Force decoding to AIFF format\n");
1177         printf("      --force-raw-format       Treat input or output as raw samples\n");
1178         printf("negative options:\n");
1179         printf("      --no-adaptive-mid-side\n");
1180         printf("      --no-decode-through-errors\n");
1181         printf("      --no-delete-input-file\n");
1182         printf("      --no-exhaustive-model-search\n");
1183         printf("      --no-lax\n");
1184         printf("      --no-mid-side\n");
1185 #if FLAC__HAS_OGG
1186         printf("      --no-ogg\n");
1187 #endif
1188         printf("      --no-padding\n");
1189         printf("      --no-qlp-coeff-prec-search\n");
1190         printf("      --no-replay-gain\n");
1191         printf("      --no-residual-gnuplot\n");
1192         printf("      --no-residual-text\n");
1193         printf("      --no-sector-align\n");
1194         printf("      --no-seektable\n");
1195         printf("      --no-silent\n");
1196         printf("      --no-force\n");
1197         printf("      --no-verify\n");
1198 }
1199
1200 void show_explain()
1201 {
1202         usage_header();
1203         usage_summary();
1204         printf("For encoding:\n");
1205         printf("  The input file(s) may be a PCM RIFF WAVE file, AIFF (or uncompressed AIFF-C)\n");
1206         printf("  file, or raw samples.\n");
1207         printf("  The output file(s) will be in native FLAC or Ogg FLAC format\n");
1208         printf("For decoding, the reverse is true.\n");
1209         printf("\n");
1210         printf("A single INPUTFILE may be - for stdin.  No INPUTFILE implies stdin.  Use of\n");
1211         printf("stdin implies -c (write to stdout).  Normally you should use:\n");
1212         printf("   flac [options] -o outfilename  or  flac -d [options] -o outfilename\n");
1213         printf("instead of:\n");
1214         printf("   flac [options] > outfilename   or  flac -d [options] > outfilename\n");
1215         printf("since the former allows flac to seek backwards to write the STREAMINFO or\n");
1216         printf("WAVE/AIFF header contents when necessary.\n");
1217         printf("\n");
1218         printf("flac checks for the presence of a AIFF/WAVE header to decide whether or not to\n");
1219         printf("treat an input file as AIFF/WAVE format or raw samples.  If any input file is\n");
1220         printf("raw you must specify the format options {-fb|fl} -fc -fp and -fs, which will\n");
1221         printf("apply to all raw files.  You can force AIFF/WAVE files to be treated as raw\n");
1222         printf("files using -fr.\n");
1223         printf("\n");
1224         printf("general options:\n");
1225         printf("  -v, --version                Show the flac version number\n");
1226         printf("  -h, --help                   Show basic usage a list of all options\n");
1227         printf("  -H, --explain                Show this screen\n");
1228         printf("  -d, --decode                 Decode (the default behavior is to encode)\n");
1229         printf("  -t, --test                   Same as -d except no decoded file is written\n");
1230         printf("  -a, --analyze                Same as -d except an analysis file is written\n");
1231         printf("  -c, --stdout                 Write output to stdout\n");
1232         printf("  -s, --silent                 Do not write runtime encode/decode statistics\n");
1233         printf("      --totally-silent         Do not print anything of any kind, including\n");
1234         printf("                               warnings or errors.  The exit code will be the\n");
1235         printf("                               only way to determine successful completion.\n");
1236         printf("  -f, --force                  Force overwriting of output files\n");
1237         printf("  -o, --output-name=FILENAME   Force the output file name; usually flac just\n");
1238         printf("                               changes the extension.  May only be used when\n");
1239         printf("                               encoding a single file.  May not be used in\n");
1240         printf("                               conjunction with --output-prefix.\n");
1241         printf("      --output-prefix=STRING   Prefix each output file name with the given\n");
1242         printf("                               STRING.  This can be useful for encoding or\n");
1243         printf("                               decoding files to a different directory.  Make\n");
1244         printf("                               sure if your STRING is a path name that it ends\n");
1245         printf("                               with a '/' slash.\n");
1246         printf("      --delete-input-file      Automatically delete the input file after a\n");
1247         printf("                               successful encode or decode.  If there was an\n");
1248         printf("                               error (including a verify error) the input file\n");
1249         printf("                               is left intact.\n");
1250         printf("      --skip={#|mm:ss.ss}      Skip the first # samples of each input file; can\n");
1251         printf("                               be used both for encoding and decoding.  The\n");
1252         printf("                               alternative form mm:ss.ss can be used to specify\n");
1253         printf("                               minutes, seconds, and fractions of a second.\n");
1254         printf("      --until={#|[+|-]mm:ss.ss}  Stop at the given sample number for each input\n");
1255         printf("                               file.  The given sample number is not included\n");
1256         printf("                               in the decoded output.  The alternative form\n");
1257         printf("                               mm:ss.ss can be used to specify minutes,\n");
1258         printf("                               seconds, and fractions of a second.  If a `+'\n");
1259         printf("                               sign is at the beginning, the --until point is\n");
1260         printf("                               relative to the --skip point.  If a `-' sign is\n");
1261         printf("                               at the beginning, the --until point is relative\n");
1262         printf("                               to end of the audio.\n");
1263 #if FLAC__HAS_OGG
1264         printf("      --ogg                    When encoding, generate Ogg FLAC output instead\n");
1265         printf("                               of native FLAC.  Ogg FLAC streams are FLAC\n");
1266         printf("                               streams wrapped in an Ogg transport layer.  The\n");
1267         printf("                               resulting file should have an '.ogg' extension\n");
1268         printf("                               and will still be decodable by flac.  When\n");
1269         printf("                               decoding, force the input to be treated as\n");
1270         printf("                               Ogg FLAC.  This is useful when piping input\n");
1271         printf("                               from stdin or when the filename does not end in\n");
1272         printf("                               '.ogg'.\n");
1273         printf("      --serial-number          Serial number to use for the FLAC stream.  When\n");
1274         printf("                               encoding and no serial number is given, flac\n");
1275         printf("                               uses a random one.  If encoding to multiple files\n");
1276         printf("                               the serial number is incremented for each file.\n");
1277         printf("                               When decoding and no number is given, flac uses\n");
1278         printf("                               the serial number of the first page.\n");
1279 #endif
1280         printf("analysis options:\n");
1281         printf("      --residual-text          Include residual signal in text output.  This\n");
1282         printf("                               will make the file very big, much larger than\n");
1283         printf("                               even the decoded file.\n");
1284         printf("      --residual-gnuplot       Generate gnuplot files of residual distribution\n");
1285         printf("                               of each subframe\n");
1286         printf("decoding options:\n");
1287         printf("  -F, --decode-through-errors  By default flac stops decoding with an error\n");
1288         printf("                               and removes the partially decoded file if it\n");
1289         printf("                               encounters a bitstream error.  With -F, errors\n");
1290         printf("                               are still printed but flac will continue\n");
1291         printf("                               decoding to completion.  Note that errors may\n");
1292         printf("                               cause the decoded audio to be missing some\n");
1293         printf("                               samples or have silent sections.\n");
1294         printf("      --cue=[#.#][-[#.#]]      Set the beginning and ending cuepoints to\n");
1295         printf("                               decode.  The optional first #.# is the track and\n");
1296         printf("                               index point at which decoding will start; the\n");
1297         printf("                               default is the beginning of the stream.  The\n");
1298         printf("                               optional second #.# is the track and index point\n");
1299         printf("                               at which decoding will end; the default is the\n");
1300         printf("                               end of the stream.  If the cuepoint does not\n");
1301         printf("                               exist, the closest one before it (for the start\n");
1302         printf("                               point) or after it (for the end point) will be\n");
1303         printf("                               used.  The cuepoints are merely translated into\n");
1304         printf("                               sample numbers then used as --skip and --until.\n");
1305         printf("                               A CD track can always be cued by, for example,\n");
1306         printf("                               --cue=9.1-10.1 for track 9, even if the CD has\n");
1307         printf("                               no 10th track.\n");
1308         printf("encoding options:\n");
1309         printf("  -V, --verify                 Verify a correct encoding by decoding the\n");
1310         printf("                               output in parallel and comparing to the\n");
1311         printf("                               original\n");
1312         printf("      --lax                    Allow encoder to generate non-Subset files\n");
1313         printf("      --sector-align           Align encoding of multiple CD format WAVE files\n");
1314         printf("                               on sector boundaries.\n");
1315         printf("      --replay-gain            Calculate ReplayGain values and store them as\n");
1316         printf("                               FLAC tags.  Title gains/peaks will be computed\n");
1317         printf("                               for each file, and an album gain/peak will be\n");
1318         printf("                               computed for all files.  All input files must\n");
1319         printf("                               have the same resolution, sample rate, and\n");
1320         printf("                               number of channels.  The sample rate must be\n");
1321         printf("                               one of 8, 11.025, 12, 16, 22.05, 24, 32, 44.1,\n");
1322         printf("                               or 48 kHz.  NOTE: this option may also leave a\n");
1323         printf("                               few extra bytes in the PADDING block.\n");
1324         printf("      --cuesheet=FILENAME      Import the given cuesheet file and store it in\n");
1325         printf("                               a CUESHEET metadata block.  This option may only\n");
1326         printf("                               be used when encoding a single file.  A\n");
1327         printf("                               seekpoint will be added for each index point in\n");
1328         printf("                               the cuesheet to the SEEKTABLE unless\n");
1329         printf("                               --no-cued-seekpoints is specified.\n");
1330         printf("      --picture=SPECIFICATION  Import a picture and store it in a PICTURE block.\n");
1331         printf("                               More than one --picture command can be specified.\n");
1332         printf("                               The SPECIFICATION is a string whose parts are\n");
1333         printf("                               separated by | characters.  Some parts may be\n");
1334         printf("                               left empty to invoke default values.  The format:\n");
1335         printf("         [TYPE]|MIME-TYPE|[DESCRIPTION]|[WIDTHxHEIGHTxDEPTH[/COLORS]]|FILE\n");
1336         printf("           TYPE is optional; it is a number from one of:\n");
1337         printf("              0: Other\n");
1338         printf("              1: 32x32 pixels 'file icon' (PNG only)\n");
1339         printf("              2: Other file icon\n");
1340         printf("              3: Cover (front)\n");
1341         printf("              4: Cover (back)\n");
1342         printf("              5: Leaflet page\n");
1343         printf("              6: Media (e.g. label side of CD)\n");
1344         printf("              7: Lead artist/lead performer/soloist\n");
1345         printf("              8: Artist/performer\n");
1346         printf("              9: Conductor\n");
1347         printf("             10: Band/Orchestra\n");
1348         printf("             11: Composer\n");
1349         printf("             12: Lyricist/text writer\n");
1350         printf("             13: Recording Location\n");
1351         printf("             14: During recording\n");
1352         printf("             15: During performance\n");
1353         printf("             16: Movie/video screen capture\n");
1354         printf("             17: A bright coloured fish\n");
1355         printf("             18: Illustration\n");
1356         printf("             19: Band/artist logotype\n");
1357         printf("             20: Publisher/Studio logotype\n");
1358         printf("             The default is 3 (front cover).  There may only be one picture each\n");
1359         printf("             of type 1 and 2 in a file.\n");
1360         printf("           MIME-TYPE is mandatory; for best compatibility with players, use\n");
1361         printf("             pictures with MIME type image/jpeg or image/png.  The MIME type can\n");
1362         printf("             also be --> to mean that FILE is actually a URL to an image, though\n");
1363         printf("             this use is discouraged.\n");
1364         printf("           DESCRIPTION is optional; the default is an empty string\n");
1365         printf("           The next part specfies the resolution and color information.  If\n");
1366         printf("             the MIME-TYPE is image/jpeg, image/png, or image/gif, you can\n");
1367         printf("             usually leave this empty and they can be detected from the file.\n");
1368         printf("             Otherwise, you must specify the width in pixels, height in pixels,\n");
1369         printf("             and color depth in bits-per-pixel.  If the image has indexed colors\n");
1370         printf("             you should also specify the number of colors used.\n");
1371         printf("           FILE is the path to the picture file to be imported, or the URL if\n");
1372         printf("             MIME type is -->\n");
1373         printf("  -T, --tag=FIELD=VALUE        Add a FLAC tag.  Make sure to quote the\n");
1374         printf("                               comment if necessary.  This option may appear\n");
1375         printf("                               more than once to add several comments.  NOTE:\n");
1376         printf("                               all tags will be added to all encoded files.\n");
1377         printf("      --tag-from-file=FIELD=FILENAME   Like --tag, except FILENAME is a file\n");
1378         printf("                               whose contents will be read verbatim to set the\n");
1379         printf("                               tag value.  The contents will be converted to\n");
1380         printf("                               UTF-8 from the local charset.  This can be used\n");
1381         printf("                               to store a cuesheet in a tag (e.g.\n");
1382         printf("                               --tag-from-file=\"CUESHEET=image.cue\").  Do not\n");
1383         printf("                               try to store binary data in tag fields!  Use\n");
1384         printf("                               APPLICATION blocks for that.\n");
1385         printf("  -S, --seekpoint={#|X|#x|#s}  Include a point or points in a SEEKTABLE\n");
1386         printf("       #  : a specific sample number for a seek point\n");
1387         printf("       X  : a placeholder point (always goes at the end of the SEEKTABLE)\n");
1388         printf("       #x : # evenly spaced seekpoints, the first being at sample 0\n");
1389         printf("       #s : a seekpoint every # seconds; # does not have to be a whole number\n");
1390         printf("     You may use many -S options; the resulting SEEKTABLE will be the unique-\n");
1391         printf("           ified union of all such values.\n");
1392         printf("     With no -S options, flac defaults to '-S 10s'.  Use -S- for no SEEKTABLE.\n");
1393         printf("     Note: -S #x and -S #s will not work if the encoder can't determine the\n");
1394         printf("           input size before starting.\n");
1395         printf("     Note: if you use -S # and # is >= samples in the input, there will be\n");
1396         printf("           either no seek point entered (if the input size is determinable\n");
1397         printf("           before encoding starts) or a placeholder point (if input size is not\n");
1398         printf("           determinable)\n");
1399         printf("  -P, --padding=#              Tell the encoder to write a PADDING metadata\n");
1400         printf("                               block of the given length (in bytes) after the\n");
1401         printf("                               STREAMINFO block.  This is useful if you plan\n");
1402         printf("                               to tag the file later with an APPLICATION\n");
1403         printf("                               block; instead of having to rewrite the entire\n");
1404         printf("                               file later just to insert your block, you can\n");
1405         printf("                               write directly over the PADDING block.  Note\n");
1406         printf("                               that the total length of the PADDING block will\n");
1407         printf("                               be 4 bytes longer than the length given because\n");
1408         printf("                               of the 4 metadata block header bytes.  You can\n");
1409         printf("                               force no PADDING block at all to be written with\n");
1410         printf("                               --no-padding.  The encoder writes a PADDING\n");
1411         printf("                               block of 8192 bytes by default, or 65536 bytes\n");
1412         printf("                               if the input audio is more than 20 minutes long.\n");
1413         printf("  -b, --blocksize=#            Specify the blocksize in samples; the default is\n");
1414         printf("                               1152 for -l 0, else 4608; must be one of 192,\n");
1415         printf("                               576, 1152, 2304, 4608, 256, 512, 1024, 2048,\n");
1416         printf("                               4096 (and 8192 or 16384 if the sample rate is\n");
1417         printf("                               >48kHz) for Subset streams.\n");
1418         printf("  -0, --compression-level-0, --fast  Synonymous with -l 0 -b 1152 -r 2,2\n");
1419         printf("  -1, --compression-level-1          Synonymous with -l 0 -b 1152 -M -r 2,2\n");
1420         printf("  -2, --compression-level-2          Synonymous with -l 0 -b 1152 -m -r 3\n");
1421         printf("  -3, --compression-level-3          Synonymous with -l 6 -b 4608 -r 3,3\n");
1422         printf("  -4, --compression-level-4          Synonymous with -l 8 -b 4608 -M -r 3,3\n");
1423         printf("  -5, --compression-level-5          Synonymous with -l 8 -b 4608 -m -r 3,3\n");
1424         printf("                                     -5 is the default setting\n");
1425         printf("  -6, --compression-level-6          Synonymous with -l 8 -b 4608 -m -r 4\n");
1426         printf("  -7, --compression-level-7          Synonymous with -l 8 -b 4608 -m -e -r 6\n");
1427         printf("  -8, --compression-level-8, --best  Synonymous with -l 12 -b 4608 -m -e -r 6\n");
1428         printf("  -m, --mid-side                     Try mid-side coding for each frame\n");
1429         printf("                                     (stereo only)\n");
1430         printf("  -M, --adaptive-mid-side            Adaptive mid-side coding for all frames\n");
1431         printf("                                     (stereo only)\n");
1432         printf("  -e, --exhaustive-model-search      Do exhaustive model search (expensive!)\n");
1433         printf("  -A, --apodization=\"function\"       Window audio data with given the function.\n");
1434         printf("                                     The functions are: bartlett, bartlett_hann,\n");
1435         printf("                                     blackman, blackman_harris_4term_92db,\n");
1436         printf("                                     connes, flattop, gauss(STDDEV), hamming,\n");
1437         printf("                                     hann, kaiser_bessel, nuttall, rectangle,\n");
1438         printf("                                     triangle, tukey(P), welch.  More than one\n");
1439         printf("                                     may be specified but encoding time is a\n");
1440         printf("                                     multiple of the number of functions since\n");
1441         printf("                                     they are each tried in turn.  The encoder\n");
1442         printf("                                     chooses suitable defaults in the absence\n");
1443         printf("                                     of any -A options.\n");
1444         printf("  -l, --max-lpc-order=#              Max LPC order; 0 => only fixed predictors.\n");
1445         printf("                                     Must be <= 12 for Subset streams if sample\n");
1446         printf("                                     rate is <=48kHz.\n");
1447         printf("  -p, --qlp-coeff-precision-search   Do exhaustive search of LP coefficient\n");
1448         printf("                                     quantization (expensive!); overrides -q;\n");
1449         printf("                                     does nothing if using -l 0\n");
1450         printf("  -q, --qlp-coeff-precision=#        Specify precision in bits of quantized\n");
1451         printf("                                     linear-predictor coefficients; 0 => let\n");
1452         printf("                                     encoder decide (the minimun is %u, the\n", FLAC__MIN_QLP_COEFF_PRECISION);
1453         printf("                                     default is -q 0)\n");
1454         printf("  -r, --rice-partition-order=[#,]#   Set [min,]max residual partition order\n");
1455         printf("                                     (# is 0..16; min defaults to 0; the\n");
1456         printf("                                     default is -r 0; above 4 doesn't usually\n");
1457         printf("                                     help much)\n");
1458         printf("format options:\n");
1459         printf("      --endian={big|little}    Set byte order for samples\n");
1460         printf("      --channels=#             Number of channels\n");
1461         printf("      --bps=#                  Number of bits per sample\n");
1462         printf("      --sample-rate=#          Sample rate in Hz\n");
1463         printf("      --sign={signed|unsigned} Sign of samples (the default is signed)\n");
1464         printf("      --input-size=#           Size of the raw input in bytes.  If you are\n");
1465         printf("                               encoding raw samples from stdin, you must set\n");
1466         printf("                               this option in order to be able to use --skip,\n");
1467         printf("                               --until, --cue-sheet, or other options that need\n");
1468         printf("                               to know the size of the input beforehand.  If\n");
1469         printf("                               the size given is greater than what is found in\n");
1470         printf("                               the input stream, the encoder will complain\n");
1471         printf("                               about an unexpected end-of-file.  If the size\n");
1472         printf("                               given is less, samples will be truncated.\n");
1473         printf("      --force-aiff-format      Force the decoder to output AIFF format.  This\n");
1474         printf("                               option is not needed if the output filename (as\n");
1475         printf("                               set by -o) ends with .aif or .aiff; this option\n");
1476         printf("                               has no effect when encoding since input AIFF is\n");
1477         printf("                               auto-detected.\n");
1478         printf("      --force-raw-format       Force input (when encoding) or output (when\n");
1479         printf("                               decoding) to be treated as raw samples\n");
1480         printf("negative options:\n");
1481         printf("      --no-adaptive-mid-side\n");
1482         printf("      --no-decode-through-errors\n");
1483         printf("      --no-delete-input-file\n");
1484         printf("      --no-exhaustive-model-search\n");
1485         printf("      --no-lax\n");
1486         printf("      --no-mid-side\n");
1487 #if FLAC__HAS_OGG
1488         printf("      --no-ogg\n");
1489 #endif
1490         printf("      --no-padding\n");
1491         printf("      --no-qlp-coeff-prec-search\n");
1492         printf("      --no-residual-gnuplot\n");
1493         printf("      --no-residual-text\n");
1494         printf("      --no-sector-align\n");
1495         printf("      --no-seektable\n");
1496         printf("      --no-silent\n");
1497         printf("      --no-force\n");
1498         printf("      --no-verify\n");
1499 }
1500
1501 void format_mistake(const char *infilename, const char *wrong, const char *right)
1502 {
1503         flac__utils_printf(stderr, 1, "WARNING: %s is not a %s file; treating as a %s file\n", infilename, wrong, right);
1504 }
1505
1506 int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file)
1507 {
1508         FILE *encode_infile;
1509         FLAC__byte lookahead[12];
1510         unsigned lookahead_length = 0;
1511         FileFormat fmt = RAW;
1512         FLAC__bool is_aifc = false;
1513         int retval;
1514         off_t infilesize;
1515         encode_options_t common_options;
1516         const char *outfilename = get_encoded_outfilename(infilename); /* the final name of the encoded file */
1517         /* internal_outfilename is the file we will actually write to; it will be a temporary name if infilename==outfilename */
1518         char *internal_outfilename = 0; /* NULL implies 'use outfilename' */
1519
1520         if(0 == outfilename) {
1521                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", infilename);
1522                 return 1;
1523         }
1524
1525         if(0 == strcmp(infilename, "-")) {
1526                 infilesize = (off_t)(-1);
1527                 encode_infile = grabbag__file_get_binary_stdin();
1528         }
1529         else {
1530                 infilesize = grabbag__file_get_filesize(infilename);
1531                 if(0 == (encode_infile = fopen(infilename, "rb"))) {
1532                         flac__utils_printf(stderr, 1, "ERROR: can't open input file %s: %s\n", infilename, strerror(errno));
1533                         return 1;
1534                 }
1535         }
1536
1537         if(!option_values.force_raw_format) {
1538                 /* first set format based on name */
1539                 if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".wav"))
1540                         fmt= WAV;
1541                 else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".aif"))
1542                         fmt= AIF;
1543                 else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".aiff"))
1544                         fmt= AIF;
1545                 else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".flac"))
1546                         fmt= FLAC;
1547                 else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".ogg"))
1548                         fmt= OGGFLAC;
1549
1550                 /* attempt to guess the file type based on the first 12 bytes */
1551                 if((lookahead_length = fread(lookahead, 1, 12, encode_infile)) < 12) {
1552                         if(fmt != RAW)
1553                                 format_mistake(infilename, fmt == AIF ? "AIFF" : "WAVE", "raw");
1554                         fmt= RAW;
1555                 }
1556                 else {
1557                         if(!strncmp((const char *)lookahead, "RIFF", 4) && !strncmp((const char *)lookahead+8, "WAVE", 4))
1558                                 fmt= WAV;
1559                         else if(!strncmp((const char *)lookahead, "FORM", 4) && !strncmp((const char *)lookahead+8, "AIFF", 4))
1560                                 fmt= AIF;
1561                         else if(!strncmp((const char *)lookahead, "FORM", 4) && !strncmp((const char *)lookahead+8, "AIFC", 4)) {
1562                                 fmt= AIF;
1563                                 is_aifc = true;
1564                         }
1565                         else if(!memcmp(lookahead, FLAC__STREAM_SYNC_STRING, sizeof(FLAC__STREAM_SYNC_STRING)))
1566                                 fmt= FLAC;
1567                         /* this could be made more accurate by looking at the first packet */
1568                         else if(!memcmp(lookahead, "OggS", 4))
1569                                 fmt= OGGFLAC;
1570                         else {
1571                                 if(fmt != RAW)
1572                                         format_mistake(infilename, fmt == AIF ? "AIFF" : "WAVE", "raw");
1573                                 fmt= RAW;
1574                         }
1575                 }
1576         }
1577
1578         /*
1579          * Error if output file already exists (and -f not used).
1580          * Use grabbag__file_get_filesize() as a cheap way to check.
1581          */
1582         if(!option_values.test_only && !option_values.force_file_overwrite && strcmp(outfilename, "-") && grabbag__file_get_filesize(outfilename) != (off_t)(-1)) {
1583                 if(fmt == FLAC) {
1584                         /* need more detailed error message when re-flac'ing to avoid confusing the user */
1585                         flac__utils_printf(stderr, 1,
1586                                 "ERROR: output file %s already exists.\n\n"
1587                                 "By default flac encodes files to FLAC format; if you meant to decode this file\n"
1588                                 "from FLAC to something else, use -d.  If you meant to re-encode this file from\n"
1589                                 "FLAC to FLAC again, use -f to force writing to the same file, or -o to specify\n"
1590                                 "a different output filename.\n",
1591                                 outfilename
1592                         );
1593                 }
1594                 else if(fmt == OGGFLAC) {
1595                         /* need more detailed error message when re-flac'ing to avoid confusing the user */
1596                         flac__utils_printf(stderr, 1,
1597                                 "ERROR: output file %s already exists.\n\n"
1598                                 "By default 'flac -ogg' encodes files to Ogg FLAC format; if you meant to decode\n"
1599                                 "this file from Ogg FLAC to something else, use -d.  If you meant to re-encode\n"
1600                                 "this file from Ogg FLAC to Ogg FLAC again, use -f to force writing to the same\n"
1601                                 "file, or -o to specify a different output filename.\n",
1602                                 outfilename
1603                         );
1604                 }
1605                 else
1606                         flac__utils_printf(stderr, 1, "ERROR: output file %s already exists, use -f to override\n", outfilename);
1607                 return 1;
1608         }
1609
1610         if(option_values.format_input_size >= 0) {
1611                 if (fmt != RAW || infilesize >= 0) {
1612                         flac__utils_printf(stderr, 1, "ERROR: can only use --input-size when encoding raw samples from stdin\n");
1613                         return 1;
1614                 }
1615                 else {
1616                         infilesize = option_values.format_input_size;
1617                 }
1618         }
1619
1620         if(option_values.sector_align && (fmt == FLAC || fmt == OGGFLAC)) {
1621                 flac__utils_printf(stderr, 1, "ERROR: can't use --sector-align when the input file is FLAC or Ogg FLAC\n");
1622                 return 1;
1623         }
1624         if(option_values.sector_align && fmt == RAW && infilesize < 0) {
1625                 flac__utils_printf(stderr, 1, "ERROR: can't use --sector-align when the input size is unknown\n");
1626                 return 1;
1627         }
1628
1629         if(fmt == RAW) {
1630                 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)
1631                         return usage_error("ERROR: for encoding a raw file you must specify a value for --endian, --sign, --channels, --bps, and --sample-rate\n");
1632         }
1633
1634         if(encode_infile == stdin || option_values.force_to_stdout) {
1635                 if(option_values.replay_gain)
1636                         return usage_error("ERROR: --replay-gain cannot be used when encoding to stdout\n");
1637         }
1638         if(option_values.replay_gain && option_values.use_ogg)
1639                 return usage_error("ERROR: --replay-gain cannot be used when encoding to Ogg FLAC yet\n");
1640
1641         if(!flac__utils_parse_skip_until_specification(option_values.skip_specification, &common_options.skip_specification) || common_options.skip_specification.is_relative)
1642                 return usage_error("ERROR: invalid value for --skip\n");
1643
1644         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 */
1645                 return usage_error("ERROR: invalid value for --until\n");
1646         /* if there is no "--until" we want to default to "--until=-0" */
1647         if(0 == option_values.until_specification)
1648                 common_options.until_specification.is_relative = true;
1649
1650         common_options.verify = option_values.verify;
1651 #if FLAC__HAS_OGG
1652         common_options.use_ogg = option_values.use_ogg;
1653         /* set a random serial number if one has not yet been specified */
1654         if(!option_values.has_serial_number) {
1655                 option_values.serial_number = rand();
1656                 option_values.has_serial_number = true;
1657         }
1658         common_options.serial_number = option_values.serial_number++;
1659 #endif
1660         common_options.lax = option_values.lax;
1661         common_options.padding = option_values.padding;
1662         common_options.num_compression_settings = option_values.num_compression_settings;
1663         FLAC__ASSERT(sizeof(common_options.compression_settings) >= sizeof(option_values.compression_settings));
1664         memcpy(common_options.compression_settings, option_values.compression_settings, sizeof(option_values.compression_settings));
1665         common_options.requested_seek_points = option_values.requested_seek_points;
1666         common_options.num_requested_seek_points = option_values.num_requested_seek_points;
1667         common_options.cuesheet_filename = option_values.cuesheet_filename;
1668         common_options.cued_seekpoints = option_values.cued_seekpoints;
1669         common_options.channel_map_none = option_values.channel_map_none;
1670         common_options.is_first_file = is_first_file;
1671         common_options.is_last_file = is_last_file;
1672         common_options.align_reservoir = align_reservoir;
1673         common_options.align_reservoir_samples = &align_reservoir_samples;
1674         common_options.replay_gain = option_values.replay_gain;
1675         common_options.sector_align = option_values.sector_align;
1676         common_options.vorbis_comment = option_values.vorbis_comment;
1677         FLAC__ASSERT(sizeof(common_options.pictures) >= sizeof(option_values.pictures));
1678         memcpy(common_options.pictures, option_values.pictures, sizeof(option_values.pictures));
1679         common_options.num_pictures = option_values.num_pictures;
1680         common_options.debug.disable_constant_subframes = option_values.debug.disable_constant_subframes;
1681         common_options.debug.disable_fixed_subframes = option_values.debug.disable_fixed_subframes;
1682         common_options.debug.disable_verbatim_subframes = option_values.debug.disable_verbatim_subframes;
1683
1684         /* if infilename and outfilename point to the same file, we need to write to a temporary file */
1685         if(encode_infile != stdin && grabbag__file_are_same(infilename, outfilename)) {
1686                 static const char *tmp_suffix = ".tmp,fl-ac+en'c";
1687                 /*@@@@ still a remote possibility that a file with this filename exists */
1688                 if(0 == (internal_outfilename = malloc(strlen(outfilename)+strlen(tmp_suffix)+1))) {
1689                         flac__utils_printf(stderr, 1, "ERROR allocating memory for tempfile name\n");
1690                         return 1;
1691                 }
1692                 strcpy(internal_outfilename, outfilename);
1693                 strcat(internal_outfilename, tmp_suffix);
1694         }
1695
1696         if(fmt == RAW) {
1697                 raw_encode_options_t options;
1698
1699                 options.common = common_options;
1700                 options.is_big_endian = option_values.format_is_big_endian;
1701                 options.is_unsigned_samples = option_values.format_is_unsigned_samples;
1702                 options.channels = option_values.format_channels;
1703                 options.bps = option_values.format_bps;
1704                 options.sample_rate = option_values.format_sample_rate;
1705
1706                 retval = flac__encode_raw(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options);
1707         }
1708         else if(fmt == FLAC || fmt == OGGFLAC) {
1709                 flac_encode_options_t options;
1710
1711                 options.common = common_options;
1712
1713                 retval = flac__encode_flac(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options, fmt==OGGFLAC);
1714         }
1715         else {
1716                 wav_encode_options_t options;
1717
1718                 options.common = common_options;
1719
1720                 if(fmt == AIF)
1721                         retval = flac__encode_aif(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options, is_aifc);
1722                 else
1723                         retval = flac__encode_wav(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, options);
1724         }
1725
1726         if(retval == 0) {
1727                 if(strcmp(outfilename, "-")) {
1728                         if(option_values.replay_gain) {
1729                                 float title_gain, title_peak;
1730                                 const char *error;
1731                                 grabbag__replaygain_get_title(&title_gain, &title_peak);
1732                                 if(
1733                                         0 != (error = grabbag__replaygain_store_to_file_reference(internal_outfilename? internal_outfilename : outfilename, /*preserve_modtime=*/true)) ||
1734                                         0 != (error = grabbag__replaygain_store_to_file_title(internal_outfilename? internal_outfilename : outfilename, title_gain, title_peak, /*preserve_modtime=*/true))
1735                                 ) {
1736                                         flac__utils_printf(stderr, 1, "%s: ERROR writing ReplayGain reference/title tags (%s)\n", outfilename, error);
1737                                 }
1738                         }
1739                         if(strcmp(infilename, "-"))
1740                                 grabbag__file_copy_metadata(infilename, internal_outfilename? internal_outfilename : outfilename);
1741                 }
1742         }
1743
1744         /* rename temporary file if necessary */
1745         if(retval == 0 && internal_outfilename != 0) {
1746                 if(rename(internal_outfilename, outfilename) < 0) {
1747 #if defined _MSC_VER || defined __MINGW32__ || defined __EMX__
1748                         /* on some flavors of windows, rename() will fail if the destination already exists, so we unlink and try again */
1749                         if(unlink(outfilename) < 0) {
1750                                 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);
1751                                 retval = 1;
1752                         }
1753                         else if(rename(internal_outfilename, outfilename) < 0) {
1754                                 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);
1755                                 retval = 1;
1756                         }
1757 #else
1758                         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);
1759                         retval = 1;
1760 #endif
1761                 }
1762         }
1763
1764         /* handle --delete-input-file, but don't want to delete if piping from stdin, or if input filename and output filename are the same */
1765         if(retval == 0 && option_values.delete_input && strcmp(infilename, "-") && internal_outfilename == 0)
1766                 unlink(infilename);
1767
1768         if(internal_outfilename != 0)
1769                 free(internal_outfilename);
1770
1771         return retval;
1772 }
1773
1774 int decode_file(const char *infilename)
1775 {
1776         int retval;
1777         FLAC__bool treat_as_ogg = false;
1778         decode_options_t common_options;
1779         const char *outfilename = get_decoded_outfilename(infilename);
1780
1781         if(0 == outfilename) {
1782                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", infilename);
1783                 return 1;
1784         }
1785
1786         /*
1787          * Error if output file already exists (and -f not used).
1788          * Use grabbag__file_get_filesize() as a cheap way to check.
1789          */
1790         if(!option_values.test_only && !option_values.force_file_overwrite && strcmp(outfilename, "-") && grabbag__file_get_filesize(outfilename) != (off_t)(-1)) {
1791                 flac__utils_printf(stderr, 1, "ERROR: output file %s already exists, use -f to override\n", outfilename);
1792                 return 1;
1793         }
1794
1795         if(!option_values.test_only && !option_values.analyze) {
1796                 if(option_values.force_raw_format && (option_values.format_is_big_endian < 0 || option_values.format_is_unsigned_samples < 0))
1797                         return usage_error("ERROR: for decoding to a raw file you must specify a value for --endian and --sign\n");
1798         }
1799
1800         if(option_values.use_ogg)
1801                 treat_as_ogg = true;
1802         else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".ogg"))
1803                 treat_as_ogg = true;
1804         else
1805                 treat_as_ogg = false;
1806
1807 #if !FLAC__HAS_OGG
1808         if(treat_as_ogg) {
1809                 flac__utils_printf(stderr, 1, "%s: Ogg support has not been built into this copy of flac\n", infilename);
1810                 return 1;
1811         }
1812 #endif
1813
1814         if(!flac__utils_parse_skip_until_specification(option_values.skip_specification, &common_options.skip_specification) || common_options.skip_specification.is_relative)
1815                 return usage_error("ERROR: invalid value for --skip\n");
1816
1817         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 */
1818                 return usage_error("ERROR: invalid value for --until\n");
1819         /* if there is no "--until" we want to default to "--until=-0" */
1820         if(0 == option_values.until_specification)
1821                 common_options.until_specification.is_relative = true;
1822
1823         if(option_values.cue_specification) {
1824                 if(!flac__utils_parse_cue_specification(option_values.cue_specification, &common_options.cue_specification))
1825                         return usage_error("ERROR: invalid value for --cue\n");
1826                 common_options.has_cue_specification = true;
1827         }
1828         else
1829                 common_options.has_cue_specification = false;
1830
1831         common_options.continue_through_decode_errors = option_values.continue_through_decode_errors;
1832         common_options.replaygain_synthesis_spec = option_values.replaygain_synthesis_spec;
1833 #if FLAC__HAS_OGG
1834         common_options.is_ogg = treat_as_ogg;
1835         common_options.use_first_serial_number = !option_values.has_serial_number;
1836         common_options.serial_number = option_values.serial_number;
1837 #endif
1838         common_options.channel_map_none = option_values.channel_map_none;
1839
1840         if(!option_values.force_raw_format) {
1841                 wav_decode_options_t options;
1842
1843                 options.common = common_options;
1844
1845                 if(
1846                         option_values.force_aiff_format ||
1847                         (strlen(outfilename) >= 4 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-4), ".aif")) ||
1848                         (strlen(outfilename) >= 5 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-5), ".aiff"))
1849                 )
1850                         retval = flac__decode_aiff(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
1851                 else
1852                         retval = flac__decode_wav(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
1853         }
1854         else {
1855                 raw_decode_options_t options;
1856
1857                 options.common = common_options;
1858                 options.is_big_endian = option_values.format_is_big_endian;
1859                 options.is_unsigned_samples = option_values.format_is_unsigned_samples;
1860
1861                 retval = flac__decode_raw(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
1862         }
1863
1864         if(retval == 0 && strcmp(infilename, "-")) {
1865                 if(strcmp(outfilename, "-"))
1866                         grabbag__file_copy_metadata(infilename, outfilename);
1867                 if(option_values.delete_input && !option_values.test_only && !option_values.analyze)
1868                         unlink(infilename);
1869         }
1870
1871         return retval;
1872 }
1873
1874 const char *get_encoded_outfilename(const char *infilename)
1875 {
1876         const char *suffix = (option_values.use_ogg? ".ogg" : ".flac");
1877         return get_outfilename(infilename, suffix);
1878 }
1879
1880 const char *get_decoded_outfilename(const char *infilename)
1881 {
1882         const char *suffix;
1883         if(option_values.analyze) {
1884                 suffix = ".ana";
1885         }
1886         else if(option_values.force_raw_format) {
1887                 suffix = ".raw";
1888         }
1889         else if(option_values.force_aiff_format) {
1890                 suffix = ".aiff";
1891         }
1892         else {
1893                 suffix = ".wav";
1894         }
1895         return get_outfilename(infilename, suffix);
1896 }
1897
1898 const char *get_outfilename(const char *infilename, const char *suffix)
1899 {
1900         if(0 == option_values.cmdline_forced_outfilename) {
1901                 static char buffer[4096]; /* @@@ bad MAGIC NUMBER */
1902
1903                 if(0 == strcmp(infilename, "-") || option_values.force_to_stdout) {
1904                         strcpy(buffer, "-");
1905                 }
1906                 else {
1907                         char *p;
1908                         if (flac__strlcpy(buffer, option_values.output_prefix? option_values.output_prefix : "", sizeof buffer) >= sizeof buffer)
1909                                 return 0;
1910                         if (flac__strlcat(buffer, infilename, sizeof buffer) >= sizeof buffer)
1911                                 return 0;
1912                         /* the . must come after any / to avoid problems with, e.g. "some.directory/extensionless-filename" */
1913                         if(0 == (p = strrchr(buffer, '.')) || strchr(p, '/')) {
1914                                 if (flac__strlcat(buffer, suffix, sizeof buffer) >= sizeof buffer)
1915                                         return 0;
1916                         }
1917                         else {
1918                                 *p = '\0';
1919                                 if (flac__strlcat(buffer, suffix, sizeof buffer) >= sizeof buffer)
1920                                         return 0;
1921                         }
1922                 }
1923                 return buffer;
1924         }
1925         else
1926                 return option_values.cmdline_forced_outfilename;
1927 }
1928
1929 void die(const char *message)
1930 {
1931         FLAC__ASSERT(0 != message);
1932         flac__utils_printf(stderr, 1, "ERROR: %s\n", message);
1933         exit(1);
1934 }
1935
1936 char *local_strdup(const char *source)
1937 {
1938         char *ret;
1939         FLAC__ASSERT(0 != source);
1940         if(0 == (ret = strdup(source)))
1941                 die("out of memory during strdup()");
1942         return ret;
1943 }
1944
1945 #ifdef _MSC_VER
1946 /* There's no strtoll() in MSVC6 so we just write a specialized one */
1947 FLAC__int64 local__strtoll(const char *src, char **endptr)
1948 {
1949         FLAC__bool neg = false;
1950         FLAC__int64 ret = 0;
1951         int c;
1952         FLAC__ASSERT(0 != src);
1953         if(*src == '-') {
1954                 neg = true;
1955                 src++;
1956         }
1957         while(0 != (c = *src)) {
1958                 c -= '0';
1959                 if(c >= 0 && c <= 9)
1960                         ret = (ret * 10) + c;
1961                 else
1962                         break;
1963                 src++;
1964         }
1965         if(endptr)
1966                 *endptr = (char*)src;
1967         return neg? -ret : ret;
1968 }
1969 #endif