src/flac/main.c

   1 /* flac - Command-line FLAC encoder/decoder
   2  * Copyright (C) 2000,2001,2002,2003,2004,2005  Josh Coalson
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  17  */
  18
  19 #include <ctype.h>
  20 #include <locale.h>
  21 #include <stdarg.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <time.h>
  26
  27 #ifdef HAVE_CONFIG_H
  28 #include <config.h>
  29 #endif
  30
  31 #if !defined _MSC_VER && !defined __MINGW32__
  32 /* unlink is in stdio.h in VC++ */
  33 #include <unistd.h> /* for unlink() */
  34 #endif
  35 #include "FLAC/all.h"
  36 #include "share/grabbag.h"
  37 #include "analyze.h"
  38 #include "decode.h"
  39 #include "encode.h"
  40 #include "local_string_utils.h" /* for flac__strlcat() and flac__strlcpy() */
  41 #include "utils.h"
  42 #include "vorbiscomment.h"
  43
  44 #if defined _MSC_VER || defined __MINGW32__ || defined __EMX__
  45 #define FLAC__STRCASECMP stricmp
  46 #else
  47 #define FLAC__STRCASECMP strcasecmp
  48 #endif
  49
  50 #if 0
  51 /*[JEC] was:#if HAVE_GETOPT_LONG*/
  52 /*[JEC] see flac/include/share/getopt.h as to why the change */
  53 #  include <getopt.h>
  54 #else
  55 #  include "share/getopt.h"
  56 #endif
  57
  58 typedef enum { RAW, WAV, AIF } FileFormat;
  59
  60 static int do_it();
  61
  62 static FLAC__bool init_options();
  63 static int parse_options(int argc, char *argv[]);
  64 static int parse_option(int short_option, const char *long_option, const char *option_argument);
  65 static void free_options();
  66
  67 static int usage_error(const char *message, ...);
  68 static void short_usage();
  69 static void show_version();
  70 static void show_help();
  71 static void show_explain();
  72 static void format_mistake(const char *infilename, const char *wrong, const char *right);
  73
  74 static int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file);
  75 static int decode_file(const char *infilename);
  76
  77 static const char *get_encoded_outfilename(const char *infilename);
  78 static const char *get_decoded_outfilename(const char *infilename);
  79 static const char *get_outfilename(const char *infilename, const char *suffix);
  80
  81 static void die(const char *message);
  82 static char *local_strdup(const char *source);
  83
  84
  85 /*
  86  * share__getopt format struct; note that for long options with no
  87  * short option equivalent we just set the 'val' field to 0.
  88  */
  89 static struct share__option long_options_[] = {
  90         /*
  91          * general options
  92          */
  93         { "help"             , share__no_argument, 0, 'h' },
  94         { "explain"          , share__no_argument, 0, 'H' },
  95         { "version"          , share__no_argument, 0, 'v' },
  96         { "decode"           , share__no_argument, 0, 'd' },
  97         { "analyze"          , share__no_argument, 0, 'a' },
  98         { "test"             , share__no_argument, 0, 't' },
  99         { "stdout"           , share__no_argument, 0, 'c' },
 100         { "silent"           , share__no_argument, 0, 's' },
 101         { "totally-silent"   , share__no_argument, 0, 0 },
 102         { "force"            , share__no_argument, 0, 'f' },
 103         { "delete-input-file", share__no_argument, 0, 0 },
 104         { "output-prefix"    , share__required_argument, 0, 0 },
 105         { "output-name"      , share__required_argument, 0, 'o' },
 106         { "skip"             , share__required_argument, 0, 0 },
 107         { "until"            , share__required_argument, 0, 0 },
 108
 109         /*
 110          * decoding options
 111          */
 112         { "decode-through-errors", share__no_argument, 0, 'F' },
 113         { "cue"                  , share__required_argument, 0, 0 },
 114         { "apply-replaygain-which-is-not-lossless", share__optional_argument, 0, 0 }, /* undocumented */
 115
 116         /*
 117          * encoding options
 118          */
 119         { "cuesheet"                  , share__required_argument, 0, 0 },
 120         { "no-cued-seekpoints"        , share__no_argument, 0, 0 },
 121         { "tag"                       , share__required_argument, 0, 'T' },
 122         { "compression-level-0"       , share__no_argument, 0, '0' },
 123         { "compression-level-1"       , share__no_argument, 0, '1' },
 124         { "compression-level-2"       , share__no_argument, 0, '2' },
 125         { "compression-level-3"       , share__no_argument, 0, '3' },
 126         { "compression-level-4"       , share__no_argument, 0, '4' },
 127         { "compression-level-5"       , share__no_argument, 0, '5' },
 128         { "compression-level-6"       , share__no_argument, 0, '6' },
 129         { "compression-level-7"       , share__no_argument, 0, '7' },
 130         { "compression-level-8"       , share__no_argument, 0, '8' },
 131         { "compression-level-9"       , share__no_argument, 0, '9' },
 132         { "best"                      , share__no_argument, 0, '8' },
 133         { "fast"                      , share__no_argument, 0, '0' },
 134         { "super-secret-totally-impractical-compression-level", share__no_argument, 0, 0 },
 135         { "verify"                    , share__no_argument, 0, 'V' },
 136         { "force-aiff-format"         , share__no_argument, 0, 0 },
 137         { "force-raw-format"          , share__no_argument, 0, 0 },
 138         { "lax"                       , share__no_argument, 0, 0 },
 139         { "replay-gain"               , share__no_argument, 0, 0 },
 140         { "sector-align"              , share__no_argument, 0, 0 },
 141         { "seekpoint"                 , share__required_argument, 0, 'S' },
 142         { "padding"                   , share__required_argument, 0, 'P' },
 143 #ifdef FLAC__HAS_OGG
 144         { "ogg"                       , share__no_argument, 0, 0 },
 145         { "serial-number"             , share__required_argument, 0, 0 },
 146 #endif
 147         { "blocksize"                 , share__required_argument, 0, 'b' },
 148         { "exhaustive-model-search"   , share__no_argument, 0, 'e' },
 149         { "max-lpc-order"             , share__required_argument, 0, 'l' },
 150         { "mid-side"                  , share__no_argument, 0, 'm' },
 151         { "adaptive-mid-side"         , share__no_argument, 0, 'M' },
 152         { "qlp-coeff-precision-search", share__no_argument, 0, 'p' },
 153         { "qlp-coeff-precision"       , share__required_argument, 0, 'q' },
 154         { "rice-partition-order"      , share__required_argument, 0, 'r' },
 155         { "endian"                    , share__required_argument, 0, 0 },
 156         { "channels"                  , share__required_argument, 0, 0 },
 157         { "bps"                       , share__required_argument, 0, 0 },
 158         { "sample-rate"               , share__required_argument, 0, 0 },
 159         { "sign"                      , share__required_argument, 0, 0 },
 160         { "input-size"                , share__required_argument, 0, 0 },
 161
 162         /*
 163          * analysis options
 164          */
 165         { "residual-gnuplot", share__no_argument, 0, 0 },
 166         { "residual-text", share__no_argument, 0, 0 },
 167
 168         /*
 169          * negatives
 170          */
 171         { "no-decode-through-errors"  , share__no_argument, 0, 0 },
 172         { "no-silent"                 , share__no_argument, 0, 0 },
 173         { "no-force"                  , share__no_argument, 0, 0 },
 174         { "no-seektable"              , share__no_argument, 0, 0 },
 175         { "no-delete-input-file"      , share__no_argument, 0, 0 },
 176         { "no-replay-gain"            , share__no_argument, 0, 0 },
 177         { "no-sector-align"           , share__no_argument, 0, 0 },
 178         { "no-lax"                    , share__no_argument, 0, 0 },
 179 #ifdef FLAC__HAS_OGG
 180         { "no-ogg"                    , share__no_argument, 0, 0 },
 181 #endif
 182         { "no-exhaustive-model-search", share__no_argument, 0, 0 },
 183         { "no-mid-side"               , share__no_argument, 0, 0 },
 184         { "no-adaptive-mid-side"      , share__no_argument, 0, 0 },
 185         { "no-qlp-coeff-prec-search"  , share__no_argument, 0, 0 },
 186         { "no-padding"                , share__no_argument, 0, 0 },
 187         { "no-verify"                 , share__no_argument, 0, 0 },
 188         { "no-residual-gnuplot"       , share__no_argument, 0, 0 },
 189         { "no-residual-text"          , share__no_argument, 0, 0 },
 190         /*
 191          * undocumented debugging options for the test suite
 192          */
 193         { "disable-constant-subframes", share__no_argument, 0, 0 },
 194         { "disable-fixed-subframes"   , share__no_argument, 0, 0 },
 195         { "disable-verbatim-subframes", share__no_argument, 0, 0 },
 196
 197         {0, 0, 0, 0}
 198 };
 199
 200
 201 /*
 202  * global to hold command-line option values
 203  */
 204
 205 static struct {
 206         FLAC__bool show_help;
 207         FLAC__bool show_explain;
 208         FLAC__bool show_version;
 209         FLAC__bool mode_decode;
 210         FLAC__bool verify;
 211         FLAC__bool force_file_overwrite;
 212         FLAC__bool continue_through_decode_errors;
 213         replaygain_synthesis_spec_t replaygain_synthesis_spec;
 214         FLAC__bool lax;
 215         FLAC__bool test_only;
 216         FLAC__bool analyze;
 217         FLAC__bool use_ogg;
 218         FLAC__bool has_serial_number; /* true iff --serial-number was used */
 219         long serial_number; /* this is the Ogg serial number and is unused for native FLAC */
 220         FLAC__bool do_mid_side;
 221         FLAC__bool loose_mid_side;
 222         FLAC__bool do_exhaustive_model_search;
 223         FLAC__bool do_escape_coding;
 224         FLAC__bool do_qlp_coeff_prec_search;
 225         FLAC__bool force_to_stdout;
 226         FLAC__bool force_aiff_format;
 227         FLAC__bool force_raw_format;
 228         FLAC__bool delete_input;
 229         FLAC__bool replay_gain;
 230         FLAC__bool sector_align;
 231         const char *cmdline_forced_outfilename;
 232         const char *output_prefix;
 233         analysis_options aopts;
 234         int padding;
 235         unsigned max_lpc_order;
 236         unsigned qlp_coeff_precision;
 237         const char *skip_specification;
 238         const char *until_specification;
 239         const char *cue_specification;
 240         int format_is_big_endian;
 241         int format_is_unsigned_samples;
 242         int format_channels;
 243         int format_bps;
 244         int format_sample_rate;
 245         long format_input_size;
 246         int blocksize;
 247         int min_residual_partition_order;
 248         int max_residual_partition_order;
 249         int rice_parameter_search_dist;
 250         char requested_seek_points[50000]; /* bad MAGIC NUMBER but buffer overflow is checked */
 251         int num_requested_seek_points; /* -1 => no -S options were given, 0 => -S- was given */
 252         const char *cuesheet_filename;
 253         FLAC__bool cued_seekpoints;
 254
 255         unsigned num_files;
 256         char **filenames;
 257
 258         FLAC__StreamMetadata *vorbis_comment;
 259
 260         struct {
 261                 FLAC__bool disable_constant_subframes;
 262                 FLAC__bool disable_fixed_subframes;
 263                 FLAC__bool disable_verbatim_subframes;
 264         } debug;
 265 } option_values;
 266
 267
 268 /*
 269  * miscellaneous globals
 270  */
 271
 272 static FLAC__int32 align_reservoir_0[588], align_reservoir_1[588]; /* for carrying over samples from --sector-align */
 273 static FLAC__int32 *align_reservoir[2] = { align_reservoir_0, align_reservoir_1 };
 274 static unsigned align_reservoir_samples = 0; /* 0 .. 587 */
 275
 276
 277 int main(int argc, char *argv[])
 278 {
 279         int retval = 0;
 280
 281 #ifdef __EMX__
 282         _response(&argc, &argv);
 283         _wildcard(&argc, &argv);
 284 #endif
 285
 286         setlocale(LC_ALL, "");
 287         if(!init_options()) {
 288                 flac__utils_printf(stderr, 1, "ERROR: allocating memory\n");
 289                 retval = 1;
 290         }
 291         else {
 292                 if((retval = parse_options(argc, argv)) == 0)
 293                         retval = do_it();
 294         }
 295
 296         free_options();
 297
 298         return retval;
 299 }
 300
 301 int do_it()
 302 {
 303         int retval = 0;
 304
 305         if(option_values.show_version) {
 306                 show_version();
 307                 return 0;
 308         }
 309         else if(option_values.show_explain) {
 310                 show_explain();
 311                 return 0;
 312         }
 313         else if(option_values.show_help) {
 314                 show_help();
 315                 return 0;
 316         }
 317         else {
 318                 if(option_values.num_files == 0) {
 319                         if(flac__utils_verbosity_ >= 1)
 320                                 short_usage();
 321                         return 0;
 322                 }
 323
 324                 /*
 325                  * tweak options; validate the values
 326                  */
 327                 if(!option_values.mode_decode) {
 328                         if(option_values.blocksize < 0) {
 329                                 if(option_values.max_lpc_order == 0)
 330                                         option_values.blocksize = 1152;
 331                                 else
 332                                         option_values.blocksize = 4608;
 333                         }
 334                         if(option_values.max_residual_partition_order < 0) {
 335                                 if(option_values.blocksize <= 1152)
 336                                         option_values.max_residual_partition_order = 2;
 337                                 else if(option_values.blocksize <= 2304)
 338                                         option_values.max_residual_partition_order = 3;
 339                                 else if(option_values.blocksize <= 4608)
 340                                         option_values.max_residual_partition_order = 3;
 341                                 else
 342                                         option_values.max_residual_partition_order = 4;
 343                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order;
 344                         }
 345                         if(option_values.rice_parameter_search_dist < 0) {
 346                                 option_values.rice_parameter_search_dist = 0;
 347                         }
 348                         if(0 != option_values.cue_specification)
 349                                 return usage_error("ERROR: --cue is not allowed in test mode\n");
 350                 }
 351                 else {
 352                         if(option_values.test_only) {
 353                                 if(0 != option_values.skip_specification)
 354                                         return usage_error("ERROR: --skip is not allowed in test mode\n");
 355                                 if(0 != option_values.until_specification)
 356                                         return usage_error("ERROR: --until is not allowed in test mode\n");
 357                                 if(0 != option_values.cue_specification)
 358                                         return usage_error("ERROR: --cue is not allowed in test mode\n");
 359                                 if(0 != option_values.analyze)
 360                                         return usage_error("ERROR: analysis mode (-a/--analyze) and test mode (-t/--test) cannot be used together\n");
 361                         }
 362                 }
 363
 364                 if(0 != option_values.cue_specification && (0 != option_values.skip_specification || 0 != option_values.until_specification))
 365                         return usage_error("ERROR: --cue may not be combined with --skip or --until\n");
 366
 367                 FLAC__ASSERT(option_values.blocksize >= 0 || option_values.mode_decode);
 368
 369                 if(option_values.format_channels >= 0) {
 370                         if(option_values.format_channels == 0 || (unsigned)option_values.format_channels > FLAC__MAX_CHANNELS)
 371                                 return usage_error("ERROR: invalid number of channels '%u', must be > 0 and <= %u\n", option_values.format_channels, FLAC__MAX_CHANNELS);
 372                 }
 373                 if(option_values.format_bps >= 0) {
 374                         if(option_values.format_bps != 8 && option_values.format_bps != 16 && option_values.format_bps != 24)
 375                                 return usage_error("ERROR: invalid bits per sample '%u' (must be 8/16/24)\n", option_values.format_bps);
 376                 }
 377                 if(option_values.format_sample_rate >= 0) {
 378                         if(!FLAC__format_sample_rate_is_valid(option_values.format_sample_rate))
 379                                 return usage_error("ERROR: invalid sample rate '%u', must be > 0 and <= %u\n", option_values.format_sample_rate, FLAC__MAX_SAMPLE_RATE);
 380                 }
 381                 if(option_values.force_raw_format && option_values.force_aiff_format)
 382                         return usage_error("ERROR: only one of --force-raw-format and --force-aiff-format allowed\n");
 383                 if(option_values.mode_decode) {
 384                         if(!option_values.force_raw_format) {
 385                                 if(option_values.format_is_big_endian >= 0)
 386                                         return usage_error("ERROR: --endian only allowed with --force-raw-format\n");
 387                                 if(option_values.format_is_unsigned_samples >= 0)
 388                                         return usage_error("ERROR: --sign only allowed with --force-raw-format\n");
 389                         }
 390                         if(option_values.format_channels >= 0)
 391                                 return usage_error("ERROR: --channels not allowed with --decode\n");
 392                         if(option_values.format_bps >= 0)
 393                                 return usage_error("ERROR: --bps not allowed with --decode\n");
 394                         if(option_values.format_sample_rate >= 0)
 395                                 return usage_error("ERROR: --sample-rate not allowed with --decode\n");
 396                 }
 397                 if(!option_values.mode_decode && ((unsigned)option_values.blocksize < FLAC__MIN_BLOCK_SIZE || (unsigned)option_values.blocksize > FLAC__MAX_BLOCK_SIZE)) {
 398                         return usage_error("ERROR: invalid blocksize '%u', must be >= %u and <= %u\n", (unsigned)option_values.blocksize, FLAC__MIN_BLOCK_SIZE, FLAC__MAX_BLOCK_SIZE);
 399                 }
 400                 if(option_values.qlp_coeff_precision > 0 && option_values.qlp_coeff_precision < FLAC__MIN_QLP_COEFF_PRECISION) {
 401                         return usage_error("ERROR: invalid value '%u' for qlp coeff precision, must be 0 or >= %u\n", option_values.qlp_coeff_precision, FLAC__MIN_QLP_COEFF_PRECISION);
 402                 }
 403
 404                 if(option_values.sector_align) {
 405                         if(option_values.mode_decode)
 406                                 return usage_error("ERROR: --sector-align only allowed for encoding\n");
 407                         if(0 != option_values.skip_specification)
 408                                 return usage_error("ERROR: --sector-align not allowed with --skip\n");
 409                         if(0 != option_values.until_specification)
 410                                 return usage_error("ERROR: --sector-align not allowed with --until\n");
 411                         if(0 != option_values.cue_specification)
 412                                 return usage_error("ERROR: --sector-align not allowed with --cue\n");
 413                         if(option_values.format_channels >= 0 && option_values.format_channels != 2)
 414                                 return usage_error("ERROR: --sector-align can only be done with stereo input\n");
 415                         if(option_values.format_bps >= 0 && option_values.format_bps != 16)
 416                                 return usage_error("ERROR: --sector-align can only be done with 16-bit samples\n");
 417                         if(option_values.format_sample_rate >= 0 && option_values.format_sample_rate != 44100)
 418                                 return usage_error("ERROR: --sector-align can only be done with a sample rate of 44100\n");
 419                 }
 420                 if(option_values.replay_gain) {
 421                         if(option_values.force_to_stdout)
 422                                 return usage_error("ERROR: --replay-gain not allowed with -c/--stdout\n");
 423                         if(option_values.mode_decode)
 424                                 return usage_error("ERROR: --replay-gain only allowed for encoding\n");
 425                         if(option_values.format_channels > 2)
 426                                 return usage_error("ERROR: --replay-gain can only be done with mono/stereo input\n");
 427                         if(option_values.format_sample_rate >= 0 && !grabbag__replaygain_is_valid_sample_frequency(option_values.format_sample_rate))
 428                                 return usage_error("ERROR: invalid sample rate used with --replay-gain\n");
 429                         /*
 430                          * We want to reserve padding space for the ReplayGain
 431                          * tags that we will set later, to avoid rewriting the
 432                          * whole file.
 433                          */
 434                         if(option_values.padding < 0) {
 435                                 flac__utils_printf(stderr, 1, "NOTE: --replay-gain may leave a small PADDING block even with --no-padding\n");
 436                                 option_values.padding = GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
 437                         }
 438                         else {
 439                                 option_values.padding += GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
 440                         }
 441                 }
 442                 if(option_values.num_files > 1 && option_values.cmdline_forced_outfilename) {
 443                         return usage_error("ERROR: -o/--output-name cannot be used with multiple files\n");
 444                 }
 445                 if(option_values.cmdline_forced_outfilename && option_values.output_prefix) {
 446                         return usage_error("ERROR: --output-prefix conflicts with -o/--output-name\n");
 447                 }
 448                 if(!option_values.mode_decode && 0 != option_values.cuesheet_filename && option_values.num_files > 1) {
 449                         return usage_error("ERROR: --cuesheet cannot be used when encoding multiple files\n");
 450                 }
 451         }
 452
 453         flac__utils_printf(stderr, 2, "\n");
 454         flac__utils_printf(stderr, 2, "flac %s, Copyright (C) 2000,2001,2002,2003,2004,2005  Josh Coalson\n", FLAC__VERSION_STRING);
 455         flac__utils_printf(stderr, 2, "flac comes with ABSOLUTELY NO WARRANTY.  This is free software, and you are\n");
 456         flac__utils_printf(stderr, 2, "welcome to redistribute it under certain conditions.  Type `flac' for details.\n\n");
 457
 458         if(!option_values.mode_decode) {
 459                 char padopt[16];
 460                 if(option_values.padding < 0)
 461                         strcpy(padopt, "-");
 462                 else
 463                         sprintf(padopt, " %d", option_values.padding);
 464                 flac__utils_printf(stderr, 2,
 465                         "options:%s%s%s%s -P%s -b %u%s -l %u%s%s%s -q %u -r %u,%u%s\n",
 466                         option_values.delete_input?" --delete-input-file":"",
 467                         option_values.sector_align?" --sector-align":"",
 468                         option_values.use_ogg?" --ogg":"",
 469                         option_values.lax?" --lax":"",
 470                         padopt,
 471                         (unsigned)option_values.blocksize,
 472                         option_values.loose_mid_side?" -M":option_values.do_mid_side?" -m":"",
 473                         option_values.max_lpc_order,
 474                         option_values.do_exhaustive_model_search?" -e":"",
 475                         option_values.do_escape_coding?" -E":"",
 476                         option_values.do_qlp_coeff_prec_search?" -p":"",
 477                         option_values.qlp_coeff_precision,
 478                         (unsigned)option_values.min_residual_partition_order,
 479                         (unsigned)option_values.max_residual_partition_order,
 480                         option_values.verify? " -V":""
 481                 );
 482         }
 483
 484         if(option_values.mode_decode) {
 485                 FLAC__bool first = true;
 486
 487                 if(option_values.num_files == 0) {
 488                         retval = decode_file("-");
 489                 }
 490                 else {
 491                         unsigned i;
 492                         if(option_values.num_files > 1)
 493                                 option_values.cmdline_forced_outfilename = 0;
 494                         for(i = 0, retval = 0; i < option_values.num_files; i++) {
 495                                 if(0 == strcmp(option_values.filenames[i], "-") && !first)
 496                                         continue;
 497                                 retval |= decode_file(option_values.filenames[i]);
 498                                 first = false;
 499                         }
 500                 }
 501         }
 502         else { /* encode */
 503                 FLAC__bool first = true;
 504
 505                 if(option_values.num_files == 0) {
 506                         retval = encode_file("-", first, true);
 507                 }
 508                 else {
 509                         unsigned i;
 510                         if(option_values.num_files > 1)
 511                                 option_values.cmdline_forced_outfilename = 0;
 512                         for(i = 0, retval = 0; i < option_values.num_files; i++) {
 513                                 if(0 == strcmp(option_values.filenames[i], "-") && !first)
 514                                         continue;
 515                                 retval |= encode_file(option_values.filenames[i], first, i == (option_values.num_files-1));
 516                                 first = false;
 517                         }
 518                         if(option_values.replay_gain && retval == 0) {
 519                                 float album_gain, album_peak;
 520                                 grabbag__replaygain_get_album(&album_gain, &album_peak);
 521                                 for(i = 0; i < option_values.num_files; i++) {
 522                                         const char *error, *outfilename = get_encoded_outfilename(option_values.filenames[i]);
 523                                         if(0 == outfilename) {
 524                                                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", option_values.filenames[i]);
 525                                                 return 1;
 526                                         }
 527                                         if(0 == strcmp(option_values.filenames[i], "-")) {
 528                                                 FLAC__ASSERT(0);
 529                                                 /* double protection */
 530                                                 flac__utils_printf(stderr, 1, "internal error\n");
 531                                                 return 2;
 532                                         }
 533                                         if(0 != (error = grabbag__replaygain_store_to_file_album(outfilename, album_gain, album_peak, /*preserve_modtime=*/true))) {
 534                                                 flac__utils_printf(stderr, 1, "%s: ERROR writing ReplayGain album tags\n", outfilename);
 535                                                 retval = 1;
 536                                         }
 537                                 }
 538                         }
 539                 }
 540         }
 541
 542         return retval;
 543 }
 544
 545 FLAC__bool init_options()
 546 {
 547         option_values.show_help = false;
 548         option_values.show_explain = false;
 549         option_values.mode_decode = false;
 550         option_values.verify = false;
 551         option_values.force_file_overwrite = false;
 552         option_values.continue_through_decode_errors = false;
 553         option_values.replaygain_synthesis_spec.apply = false;
 554         option_values.replaygain_synthesis_spec.use_album_gain = true;
 555         option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__HARD;
 556         option_values.replaygain_synthesis_spec.noise_shaping = NOISE_SHAPING_LOW;
 557         option_values.replaygain_synthesis_spec.preamp = 0.0;
 558         option_values.lax = false;
 559         option_values.test_only = false;
 560         option_values.analyze = false;
 561         option_values.use_ogg = false;
 562         option_values.has_serial_number = false;
 563         option_values.serial_number = 0;
 564         option_values.do_mid_side = true;
 565         option_values.loose_mid_side = false;
 566         option_values.do_exhaustive_model_search = false;
 567         option_values.do_escape_coding = false;
 568         option_values.do_qlp_coeff_prec_search = false;
 569         option_values.force_to_stdout = false;
 570         option_values.force_aiff_format = false;
 571         option_values.force_raw_format = false;
 572         option_values.delete_input = false;
 573         option_values.replay_gain = false;
 574         option_values.sector_align = false;
 575         option_values.cmdline_forced_outfilename = 0;
 576         option_values.output_prefix = 0;
 577         option_values.aopts.do_residual_text = false;
 578         option_values.aopts.do_residual_gnuplot = false;
 579         option_values.padding = 4096;
 580         option_values.max_lpc_order = 8;
 581         option_values.qlp_coeff_precision = 0;
 582         option_values.skip_specification = 0;
 583         option_values.until_specification = 0;
 584         option_values.cue_specification = 0;
 585         option_values.format_is_big_endian = -1;
 586         option_values.format_is_unsigned_samples = -1;
 587         option_values.format_channels = -1;
 588         option_values.format_bps = -1;
 589         option_values.format_sample_rate = -1;
 590         option_values.format_input_size = -1;
 591         option_values.blocksize = -1;
 592         option_values.min_residual_partition_order = -1;
 593         option_values.max_residual_partition_order = -1;
 594         option_values.rice_parameter_search_dist = -1;
 595         option_values.requested_seek_points[0] = '\0';
 596         option_values.num_requested_seek_points = -1;
 597         option_values.cuesheet_filename = 0;
 598         option_values.cued_seekpoints = true;
 599
 600         option_values.num_files = 0;
 601         option_values.filenames = 0;
 602
 603         if(0 == (option_values.vorbis_comment = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT)))
 604                 return false;
 605
 606         option_values.debug.disable_constant_subframes = false;
 607         option_values.debug.disable_fixed_subframes = false;
 608         option_values.debug.disable_verbatim_subframes = false;
 609
 610         return true;
 611 }
 612
 613 int parse_options(int argc, char *argv[])
 614 {
 615         int short_option;
 616         int option_index = 1;
 617         FLAC__bool had_error = false;
 618         const char *short_opts = "0123456789ab:cdefFhHl:mMo:pP:q:r:sS:tT:vV";
 619
 620         while ((short_option = share__getopt_long(argc, argv, short_opts, long_options_, &option_index)) != -1) {
 621                 switch (short_option) {
 622                         case 0: /* long option with no equivalent short option */
 623                                 had_error |= (parse_option(short_option, long_options_[option_index].name, share__optarg) != 0);
 624                                 break;
 625                         case '?':
 626                         case ':':
 627                                 had_error = true;
 628                                 break;
 629                         default: /* short option */
 630                                 had_error |= (parse_option(short_option, 0, share__optarg) != 0);
 631                                 break;
 632                 }
 633         }
 634
 635         if(had_error) {
 636                 return 1;
 637         }
 638
 639         FLAC__ASSERT(share__optind <= argc);
 640
 641         option_values.num_files = argc - share__optind;
 642
 643         if(option_values.num_files > 0) {
 644                 unsigned i = 0;
 645                 if(0 == (option_values.filenames = (char**)malloc(sizeof(char*) * option_values.num_files)))
 646                         die("out of memory allocating space for file names list");
 647                 while(share__optind < argc)
 648                         option_values.filenames[i++] = local_strdup(argv[share__optind++]);
 649         }
 650
 651         return 0;
 652 }
 653
 654 int parse_option(int short_option, const char *long_option, const char *option_argument)
 655 {
 656         char *p;
 657
 658         if(short_option == 0) {
 659                 FLAC__ASSERT(0 != long_option);
 660                 if(0 == strcmp(long_option, "totally-silent")) {
 661                         flac__utils_verbosity_ = 0;
 662                 }
 663                 else if(0 == strcmp(long_option, "delete-input-file")) {
 664                         option_values.delete_input = true;
 665                 }
 666                 else if(0 == strcmp(long_option, "output-prefix")) {
 667                         FLAC__ASSERT(0 != option_argument);
 668                         option_values.output_prefix = option_argument;
 669                 }
 670                 else if(0 == strcmp(long_option, "skip")) {
 671                         FLAC__ASSERT(0 != option_argument);
 672                         option_values.skip_specification = option_argument;
 673                 }
 674                 else if(0 == strcmp(long_option, "until")) {
 675                         FLAC__ASSERT(0 != option_argument);
 676                         option_values.until_specification = option_argument;
 677                 }
 678                 else if(0 == strcmp(long_option, "input-size")) {
 679                         FLAC__ASSERT(0 != option_argument);
 680                         option_values.format_input_size = atol(option_argument);
 681                 }
 682                 else if(0 == strcmp(long_option, "cue")) {
 683                         FLAC__ASSERT(0 != option_argument);
 684                         option_values.cue_specification = option_argument;
 685                 }
 686                 else if(0 == strcmp(long_option, "apply-replaygain-which-is-not-lossless")) {
 687                         option_values.replaygain_synthesis_spec.apply = true;
 688                         if (0 != option_argument) {
 689                                 char *p;
 690                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__NONE;
 691                                 option_values.replaygain_synthesis_spec.noise_shaping = NOISE_SHAPING_NONE;
 692                                 option_values.replaygain_synthesis_spec.preamp = strtod(option_argument, &p);
 693                                 for ( ; *p; p++) {
 694                                         if (*p == 'a')
 695                                                 option_values.replaygain_synthesis_spec.use_album_gain = true;
 696                                         else if (*p == 't')
 697                                                 option_values.replaygain_synthesis_spec.use_album_gain = false;
 698                                         else if (*p == 'l')
 699                                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__PEAK;
 700                                         else if (*p == 'L')
 701                                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__HARD;
 702                                         else if (*p == 'n' && p[1] >= '0' && p[1] <= '3') {
 703                                                 option_values.replaygain_synthesis_spec.noise_shaping = p[1] - '0';
 704                                                 p++;
 705                                         }
 706                                         else
 707                                                 return usage_error("ERROR: bad specification string \"%s\" for --%s\n", option_argument, long_option);
 708                                 }
 709                         }
 710                 }
 711                 else if(0 == strcmp(long_option, "cuesheet")) {
 712                         FLAC__ASSERT(0 != option_argument);
 713                         option_values.cuesheet_filename = option_argument;
 714                 }
 715                 else if(0 == strcmp(long_option, "no-cued-seekpoints")) {
 716                         option_values.cued_seekpoints = false;
 717                 }
 718                 else if(0 == strcmp(long_option, "super-secret-totally-impractical-compression-level")) {
 719                         option_values.lax = true;
 720                         option_values.do_exhaustive_model_search = true;
 721                         option_values.do_escape_coding = true;
 722                         option_values.do_mid_side = true;
 723                         option_values.loose_mid_side = false;
 724                         option_values.do_qlp_coeff_prec_search = true;
 725                         option_values.min_residual_partition_order = 0;
 726                         option_values.max_residual_partition_order = 16;
 727                         option_values.rice_parameter_search_dist = 0;
 728                         option_values.max_lpc_order = 32;
 729                 }
 730                 else if(0 == strcmp(long_option, "force-aiff-format")) {
 731                         option_values.force_aiff_format = true;
 732                 }
 733                 else if(0 == strcmp(long_option, "force-raw-format")) {
 734                         option_values.force_raw_format = true;
 735                 }
 736                 else if(0 == strcmp(long_option, "lax")) {
 737                         option_values.lax = true;
 738                 }
 739                 else if(0 == strcmp(long_option, "replay-gain")) {
 740                         option_values.replay_gain = true;
 741                 }
 742                 else if(0 == strcmp(long_option, "sector-align")) {
 743                         option_values.sector_align = true;
 744                 }
 745 #ifdef FLAC__HAS_OGG
 746                 else if(0 == strcmp(long_option, "ogg")) {
 747                         option_values.use_ogg = true;
 748                 }
 749                 else if(0 == strcmp(long_option, "serial-number")) {
 750                         option_values.has_serial_number = true;
 751                         option_values.serial_number = atol(option_argument);
 752                 }
 753 #endif
 754                 else if(0 == strcmp(long_option, "endian")) {
 755                         FLAC__ASSERT(0 != option_argument);
 756                         if(0 == strncmp(option_argument, "big", strlen(option_argument)))
 757                                 option_values.format_is_big_endian = true;
 758                         else if(0 == strncmp(option_argument, "little", strlen(option_argument)))
 759                                 option_values.format_is_big_endian = false;
 760                         else
 761                                 return usage_error("ERROR: argument to --endian must be \"big\" or \"little\"\n");
 762                 }
 763                 else if(0 == strcmp(long_option, "channels")) {
 764                         FLAC__ASSERT(0 != option_argument);
 765                         option_values.format_channels = atoi(option_argument);
 766                 }
 767                 else if(0 == strcmp(long_option, "bps")) {
 768                         FLAC__ASSERT(0 != option_argument);
 769                         option_values.format_bps = atoi(option_argument);
 770                 }
 771                 else if(0 == strcmp(long_option, "sample-rate")) {
 772                         FLAC__ASSERT(0 != option_argument);
 773                         option_values.format_sample_rate = atoi(option_argument);
 774                 }
 775                 else if(0 == strcmp(long_option, "sign")) {
 776                         FLAC__ASSERT(0 != option_argument);
 777                         if(0 == strncmp(option_argument, "signed", strlen(option_argument)))
 778                                 option_values.format_is_unsigned_samples = false;
 779                         else if(0 == strncmp(option_argument, "unsigned", strlen(option_argument)))
 780                                 option_values.format_is_unsigned_samples = true;
 781                         else
 782                                 return usage_error("ERROR: argument to --sign must be \"signed\" or \"unsigned\"\n");
 783                 }
 784                 else if(0 == strcmp(long_option, "residual-gnuplot")) {
 785                         option_values.aopts.do_residual_gnuplot = true;
 786                 }
 787                 else if(0 == strcmp(long_option, "residual-text")) {
 788                         option_values.aopts.do_residual_text = true;
 789                 }
 790                 /*
 791                  * negatives
 792                  */
 793                 else if(0 == strcmp(long_option, "no-decode-through-errors")) {
 794                         option_values.continue_through_decode_errors = false;
 795                 }
 796                 else if(0 == strcmp(long_option, "no-silent")) {
 797                         flac__utils_verbosity_ = 2;
 798                 }
 799                 else if(0 == strcmp(long_option, "no-force")) {
 800                         option_values.force_file_overwrite = false;
 801                 }
 802                 else if(0 == strcmp(long_option, "no-seektable")) {
 803                         option_values.num_requested_seek_points = 0;
 804                         option_values.requested_seek_points[0] = '\0';
 805                 }
 806                 else if(0 == strcmp(long_option, "no-delete-input-file")) {
 807                         option_values.delete_input = false;
 808                 }
 809                 else if(0 == strcmp(long_option, "no-replay-gain")) {
 810                         option_values.replay_gain = false;
 811                 }
 812                 else if(0 == strcmp(long_option, "no-sector-align")) {
 813                         option_values.sector_align = false;
 814                 }
 815                 else if(0 == strcmp(long_option, "no-lax")) {
 816                         option_values.lax = false;
 817                 }
 818 #ifdef FLAC__HAS_OGG
 819                 else if(0 == strcmp(long_option, "no-ogg")) {
 820                         option_values.use_ogg = false;
 821                 }
 822 #endif
 823                 else if(0 == strcmp(long_option, "no-exhaustive-model-search")) {
 824                         option_values.do_exhaustive_model_search = false;
 825                 }
 826                 else if(0 == strcmp(long_option, "no-mid-side")) {
 827                         option_values.do_mid_side = option_values.loose_mid_side = false;
 828                 }
 829                 else if(0 == strcmp(long_option, "no-adaptive-mid-side")) {
 830                         option_values.loose_mid_side = option_values.do_mid_side = false;
 831                 }
 832                 else if(0 == strcmp(long_option, "no-qlp-coeff-prec-search")) {
 833                         option_values.do_qlp_coeff_prec_search = false;
 834                 }
 835                 else if(0 == strcmp(long_option, "no-padding")) {
 836                         option_values.padding = -1;
 837                 }
 838                 else if(0 == strcmp(long_option, "no-verify")) {
 839                         option_values.verify = false;
 840                 }
 841                 else if(0 == strcmp(long_option, "no-residual-gnuplot")) {
 842                         option_values.aopts.do_residual_gnuplot = false;
 843                 }
 844                 else if(0 == strcmp(long_option, "no-residual-text")) {
 845                         option_values.aopts.do_residual_text = false;
 846                 }
 847                 else if(0 == strcmp(long_option, "disable-constant-subframes")) {
 848                         option_values.debug.disable_constant_subframes = true;
 849                 }
 850                 else if(0 == strcmp(long_option, "disable-fixed-subframes")) {
 851                         option_values.debug.disable_fixed_subframes = true;
 852                 }
 853                 else if(0 == strcmp(long_option, "disable-verbatim-subframes")) {
 854                         option_values.debug.disable_verbatim_subframes = true;
 855                 }
 856         }
 857         else {
 858                 const char *violation;
 859                 switch(short_option) {
 860                         case 'h':
 861                                 option_values.show_help = true;
 862                                 break;
 863                         case 'H':
 864                                 option_values.show_explain = true;
 865                                 break;
 866                         case 'v':
 867                                 option_values.show_version = true;
 868                                 break;
 869                         case 'd':
 870                                 option_values.mode_decode = true;
 871                                 break;
 872                         case 'a':
 873                                 option_values.mode_decode = true;
 874                                 option_values.analyze = true;
 875                                 break;
 876                         case 't':
 877                                 option_values.mode_decode = true;
 878                                 option_values.test_only = true;
 879                                 break;
 880                         case 'c':
 881                                 option_values.force_to_stdout = true;
 882                                 break;
 883                         case 's':
 884                                 flac__utils_verbosity_ = 1;
 885                                 break;
 886                         case 'f':
 887                                 option_values.force_file_overwrite = true;
 888                                 break;
 889                         case 'o':
 890                                 FLAC__ASSERT(0 != option_argument);
 891                                 option_values.cmdline_forced_outfilename = option_argument;
 892                                 break;
 893                         case 'F':
 894                                 option_values.continue_through_decode_errors = true;
 895                                 break;
 896                         case 'T':
 897                                 FLAC__ASSERT(0 != option_argument);
 898                                 if(!flac__vorbiscomment_add(option_values.vorbis_comment, option_argument, &violation))
 899                                         return usage_error("ERROR: (-T/--tag) %s\n", violation);
 900                                 break;
 901                         case '0':
 902                                 option_values.do_exhaustive_model_search = false;
 903                                 option_values.do_escape_coding = false;
 904                                 option_values.do_mid_side = false;
 905                                 option_values.loose_mid_side = false;
 906                                 option_values.qlp_coeff_precision = 0;
 907                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 2;
 908                                 option_values.rice_parameter_search_dist = 0;
 909                                 option_values.max_lpc_order = 0;
 910                                 break;
 911                         case '1':
 912                                 option_values.do_exhaustive_model_search = false;
 913                                 option_values.do_escape_coding = false;
 914                                 option_values.do_mid_side = true;
 915                                 option_values.loose_mid_side = true;
 916                                 option_values.qlp_coeff_precision = 0;
 917                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 2;
 918                                 option_values.rice_parameter_search_dist = 0;
 919                                 option_values.max_lpc_order = 0;
 920                                 break;
 921                         case '2':
 922                                 option_values.do_exhaustive_model_search = false;
 923                                 option_values.do_escape_coding = false;
 924                                 option_values.do_mid_side = true;
 925                                 option_values.loose_mid_side = false;
 926                                 option_values.qlp_coeff_precision = 0;
 927                                 option_values.min_residual_partition_order = 0;
 928                                 option_values.max_residual_partition_order = 3;
 929                                 option_values.rice_parameter_search_dist = 0;
 930                                 option_values.max_lpc_order = 0;
 931                                 break;
 932                         case '3':
 933                                 option_values.do_exhaustive_model_search = false;
 934                                 option_values.do_escape_coding = false;
 935                                 option_values.do_mid_side = false;
 936                                 option_values.loose_mid_side = false;
 937                                 option_values.qlp_coeff_precision = 0;
 938                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
 939                                 option_values.rice_parameter_search_dist = 0;
 940                                 option_values.max_lpc_order = 6;
 941                                 break;
 942                         case '4':
 943                                 option_values.do_exhaustive_model_search = false;
 944                                 option_values.do_escape_coding = false;
 945                                 option_values.do_mid_side = true;
 946                                 option_values.loose_mid_side = true;
 947                                 option_values.qlp_coeff_precision = 0;
 948                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
 949                                 option_values.rice_parameter_search_dist = 0;
 950                                 option_values.max_lpc_order = 8;
 951                                 break;
 952                         case '5':
 953                                 option_values.do_exhaustive_model_search = false;
 954                                 option_values.do_escape_coding = false;
 955                                 option_values.do_mid_side = true;
 956                                 option_values.loose_mid_side = false;
 957                                 option_values.qlp_coeff_precision = 0;
 958                                 option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
 959                                 option_values.rice_parameter_search_dist = 0;
 960                                 option_values.max_lpc_order = 8;
 961                                 break;
 962                         case '6':
 963                                 option_values.do_exhaustive_model_search = false;
 964                                 option_values.do_escape_coding = false;
 965                                 option_values.do_mid_side = true;
 966                                 option_values.loose_mid_side = false;
 967                                 option_values.qlp_coeff_precision = 0;
 968                                 option_values.min_residual_partition_order = 0;
 969                                 option_values.max_residual_partition_order = 4;
 970                                 option_values.rice_parameter_search_dist = 0;
 971                                 option_values.max_lpc_order = 8;
 972                                 break;
 973                         case '7':
 974                                 option_values.do_exhaustive_model_search = true;
 975                                 option_values.do_escape_coding = false;
 976                                 option_values.do_mid_side = true;
 977                                 option_values.loose_mid_side = false;
 978                                 option_values.qlp_coeff_precision = 0;
 979                                 option_values.min_residual_partition_order = 0;
 980                                 option_values.max_residual_partition_order = 6;
 981                                 option_values.rice_parameter_search_dist = 0;
 982                                 option_values.max_lpc_order = 8;
 983                                 break;
 984                         case '8':
 985                                 option_values.do_exhaustive_model_search = true;
 986                                 option_values.do_escape_coding = false;
 987                                 option_values.do_mid_side = true;
 988                                 option_values.loose_mid_side = false;
 989                                 option_values.qlp_coeff_precision = 0;
 990                                 option_values.min_residual_partition_order = 0;
 991                                 option_values.max_residual_partition_order = 6;
 992                                 option_values.rice_parameter_search_dist = 0;
 993                                 option_values.max_lpc_order = 12;
 994                                 break;
 995                         case '9':
 996                                 return usage_error("ERROR: compression level '9' is reserved\n");
 997                         case 'V':
 998                                 option_values.verify = true;
 999                                 break;
1000                         case 'S':
1001                                 FLAC__ASSERT(0 != option_argument);
1002                                 if(option_values.num_requested_seek_points < 0)
1003                                         option_values.num_requested_seek_points = 0;
1004                                 option_values.num_requested_seek_points++;
1005                                 if(strlen(option_values.requested_seek_points)+strlen(option_argument)+2 >= sizeof(option_values.requested_seek_points)) {
1006                                         return usage_error("ERROR: too many seekpoints requested\n");
1007                                 }
1008                                 else {
1009                                         strcat(option_values.requested_seek_points, option_argument);
1010                                         strcat(option_values.requested_seek_points, ";");
1011                                 }
1012                                 break;
1013                         case 'P':
1014                                 FLAC__ASSERT(0 != option_argument);
1015                                 option_values.padding = atoi(option_argument);
1016                                 if(option_values.padding < 0)
1017                                         return usage_error("ERROR: argument to -P must be >= 0\n");
1018                                 break;
1019                         case 'b':
1020                                 FLAC__ASSERT(0 != option_argument);
1021                                 option_values.blocksize = atoi(option_argument);
1022                                 break;
1023                         case 'e':
1024                                 option_values.do_exhaustive_model_search = true;
1025                                 break;
1026                         case 'E':
1027                                 option_values.do_escape_coding = true;
1028                                 break;
1029                         case 'l':
1030                                 FLAC__ASSERT(0 != option_argument);
1031                                 option_values.max_lpc_order = atoi(option_argument);
1032                                 break;
1033                         case 'm':
1034                                 option_values.do_mid_side = true;
1035                                 option_values.loose_mid_side = false;
1036                                 break;
1037                         case 'M':
1038                                 option_values.loose_mid_side = option_values.do_mid_side = true;
1039                                 break;
1040                         case 'p':
1041                                 option_values.do_qlp_coeff_prec_search = true;
1042                                 break;
1043                         case 'q':
1044                                 FLAC__ASSERT(0 != option_argument);
1045                                 option_values.qlp_coeff_precision = atoi(option_argument);
1046                                 break;
1047                         case 'r':
1048                                 FLAC__ASSERT(0 != option_argument);
1049                                 p = strchr(option_argument, ',');
1050                                 if(0 == p) {
1051                                         option_values.min_residual_partition_order = 0;
1052                                         option_values.max_residual_partition_order = atoi(option_argument);
1053                                 }
1054                                 else {
1055                                         option_values.min_residual_partition_order = atoi(option_argument);
1056                                         option_values.max_residual_partition_order = atoi(++p);
1057                                 }
1058                                 break;
1059                         case 'R':
1060                                 FLAC__ASSERT(0 != option_argument);
1061                                 option_values.rice_parameter_search_dist = atoi(option_argument);
1062                                 break;
1063                         default:
1064                                 FLAC__ASSERT(0);
1065                 }
1066         }
1067
1068         return 0;
1069 }
1070
1071 void free_options()
1072 {
1073         unsigned i;
1074         if(0 != option_values.filenames) {
1075                 for(i = 0; i < option_values.num_files; i++) {
1076                         if(0 != option_values.filenames[i])
1077                                 free(option_values.filenames[i]);
1078                 }
1079                 free(option_values.filenames);
1080         }
1081         if(0 != option_values.vorbis_comment)
1082                 FLAC__metadata_object_delete(option_values.vorbis_comment);
1083 }
1084
1085 int usage_error(const char *message, ...)
1086 {
1087         if(flac__utils_verbosity_ >= 1) {
1088                 va_list args;
1089
1090                 FLAC__ASSERT(0 != message);
1091
1092                 va_start(args, message);
1093
1094                 (void) vfprintf(stderr, message, args);
1095
1096                 va_end(args);
1097
1098                 printf("Type \"flac\" for a usage summary or \"flac --help\" for all options\n");
1099         }
1100
1101         return 1;
1102 }
1103
1104 void show_version()
1105 {
1106         printf("flac %s\n", FLAC__VERSION_STRING);
1107 }
1108
1109 static void usage_header()
1110 {
1111         printf("===============================================================================\n");
1112         printf("flac - Command-line FLAC encoder/decoder version %s\n", FLAC__VERSION_STRING);
1113         printf("Copyright (C) 2000,2001,2002,2003,2004,2005  Josh Coalson\n");
1114         printf("\n");
1115         printf("This program is free software; you can redistribute it and/or\n");
1116         printf("modify it under the terms of the GNU General Public License\n");
1117         printf("as published by the Free Software Foundation; either version 2\n");
1118         printf("of the License, or (at your option) any later version.\n");
1119         printf("\n");
1120         printf("This program is distributed in the hope that it will be useful,\n");
1121         printf("but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
1122         printf("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n");
1123         printf("GNU General Public License for more details.\n");
1124         printf("\n");
1125         printf("You should have received a copy of the GNU General Public License\n");
1126         printf("along with this program; if not, write to the Free Software\n");
1127         printf("Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.\n");
1128         printf("===============================================================================\n");
1129 }
1130
1131 static void usage_summary()
1132 {
1133         printf("Usage:\n");
1134         printf("\n");
1135         printf(" Encoding: flac [<general-options>] [<encoding/format-options>] [INPUTFILE [...]]\n");
1136         printf(" Decoding: flac -d [<general-options>] [<format-options>] [FLACFILE [...]]\n");
1137         printf("  Testing: flac -t [<general-options>] [FLACFILE [...]]\n");
1138         printf("Analyzing: flac -a [<general-options>] [<analysis-options>] [FLACFILE [...]]\n");
1139         printf("\n");
1140 }
1141
1142 void short_usage()
1143 {
1144         usage_header();
1145         printf("\n");
1146         printf("This is the short help; for all options use 'flac --help'; for even more\n");
1147         printf("instructions use 'flac --explain'\n");
1148         printf("\n");
1149         printf("To encode:\n");
1150         printf("  flac [-#] [INPUTFILE [...]]\n");
1151         printf("\n");
1152         printf("  -# is -0 (fastest compression) to -8 (highest compression); -5 is the default\n");
1153         printf("\n");
1154         printf("To decode:\n");
1155         printf("  flac -d [INPUTFILE [...]]\n");
1156         printf("\n");
1157         printf("To test:\n");
1158         printf("  flac -t [INPUTFILE [...]]\n");
1159 }
1160
1161 void show_help()
1162 {
1163         usage_header();
1164         usage_summary();
1165         printf("general options:\n");
1166         printf("  -v, --version                Show the flac version number\n");
1167         printf("  -h, --help                   Show this screen\n");
1168         printf("  -H, --explain                Show detailed explanation of usage and options\n");
1169         printf("  -d, --decode                 Decode (the default behavior is to encode)\n");
1170         printf("  -t, --test                   Same as -d except no decoded file is written\n");
1171         printf("  -a, --analyze                Same as -d except an analysis file is written\n");
1172         printf("  -c, --stdout                 Write output to stdout\n");
1173         printf("  -s, --silent                 Do not write runtime encode/decode statistics\n");
1174         printf("      --totally-silent         Do not print anything, including errors\n");
1175         printf("  -f, --force                  Force overwriting of output files\n");
1176         printf("  -o, --output-name=FILENAME   Force the output file name\n");
1177         printf("      --output-prefix=STRING   Prepend STRING to output names\n");
1178         printf("      --delete-input-file      Deletes after a successful encode/decode\n");
1179         printf("      --skip={#|mm:ss.ss}      Skip the given initial samples for each input\n");
1180         printf("      --until={#|[+|-]mm:ss.ss}  Stop at the given sample for each input file\n");
1181 #ifdef FLAC__HAS_OGG
1182         printf("      --ogg                    Use Ogg as transport layer\n");
1183         printf("      --serial-number          Serial number to use for the FLAC stream\n");
1184 #endif
1185         printf("analysis options:\n");
1186         printf("      --residual-text          Include residual signal in text output\n");
1187         printf("      --residual-gnuplot       Generate gnuplot files of residual distribution\n");
1188         printf("decoding options:\n");
1189         printf("  -F, --decode-through-errors  Continue decoding through stream errors\n");
1190         printf("      --cue=[#.#][-[#.#]]      Set the beginning and ending cuepoints to decode\n");
1191         printf("encoding options:\n");
1192         printf("  -V, --verify                 Verify a correct encoding\n");
1193         printf("      --lax                    Allow encoder to generate non-Subset files\n");
1194         printf("      --sector-align           Align multiple files on sector boundaries\n");
1195         printf("      --replay-gain            Calculate ReplayGain & store in FLAC tags\n");
1196         printf("      --cuesheet=FILENAME      Import cuesheet and store in CUESHEET block\n");
1197         printf("  -T, --tag=FIELD=VALUE        Add a FLAC tag; may appear multiple times\n");
1198         printf("  -S, --seekpoint={#|X|#x|#s}  Add seek point(s)\n");
1199         printf("  -P, --padding=#              Write a PADDING block of length #\n");
1200         printf("  -0, --compression-level-0, --fast  Synonymous with -l 0 -b 1152 -r 2,2\n");
1201         printf("  -1, --compression-level-1          Synonymous with -l 0 -b 1152 -M -r 2,2\n");
1202         printf("  -2, --compression-level-2          Synonymous with -l 0 -b 1152 -m -r 3\n");
1203         printf("  -3, --compression-level-3          Synonymous with -l 6 -b 4608 -r 3,3\n");
1204         printf("  -4, --compression-level-4          Synonymous with -l 8 -b 4608 -M -r 3,3\n");
1205         printf("  -5, --compression-level-5          Synonymous with -l 8 -b 4608 -m -r 3,3\n");
1206         printf("  -6, --compression-level-6          Synonymous with -l 8 -b 4608 -m -r 4\n");
1207         printf("  -7, --compression-level-7          Synonymous with -l 8 -b 4608 -m -e -r 6\n");
1208         printf("  -8, --compression-level-8, --best  Synonymous with -l 12 -b 4608 -m -e -r 6\n");
1209         printf("  -b, --blocksize=#                  Specify blocksize in samples\n");
1210         printf("  -m, --mid-side                     Try mid-side coding for each frame\n");
1211         printf("  -M, --adaptive-mid-side            Adaptive mid-side coding for all frames\n");
1212         printf("  -e, --exhaustive-model-search      Do exhaustive model search (expensive!)\n");
1213         printf("  -l, --max-lpc-order=#              Max LPC order; 0 => only fixed predictors\n");
1214         printf("  -p, --qlp-coeff-precision-search   Exhaustively search LP coeff quantization\n");
1215         printf("  -q, --qlp-coeff-precision=#        Specify precision in bits\n");
1216         printf("  -r, --rice-partition-order=[#,]#   Set [min,]max residual partition order\n");
1217         printf("format options:\n");
1218         printf("      --endian={big|little}    Set byte order for samples\n");
1219         printf("      --channels=#             Number of channels\n");
1220         printf("      --bps=#                  Number of bits per sample\n");
1221         printf("      --sample-rate=#          Sample rate in Hz\n");
1222         printf("      --sign={signed|unsigned} Sign of samples\n");
1223         printf("      --input-size=#           Size of the raw input in bytes\n");
1224         printf("      --force-aiff-format      Force decoding to AIFF format\n");
1225         printf("      --force-raw-format       Treat input or output as raw samples\n");
1226         printf("negative options:\n");
1227         printf("      --no-adaptive-mid-side\n");
1228         printf("      --no-decode-through-errors\n");
1229         printf("      --no-delete-input-file\n");
1230         printf("      --no-exhaustive-model-search\n");
1231         printf("      --no-lax\n");
1232         printf("      --no-mid-side\n");
1233 #ifdef FLAC__HAS_OGG
1234         printf("      --no-ogg\n");
1235 #endif
1236         printf("      --no-padding\n");
1237         printf("      --no-qlp-coeff-prec-search\n");
1238         printf("      --no-replay-gain\n");
1239         printf("      --no-residual-gnuplot\n");
1240         printf("      --no-residual-text\n");
1241         printf("      --no-sector-align\n");
1242         printf("      --no-seektable\n");
1243         printf("      --no-silent\n");
1244         printf("      --no-force\n");
1245         printf("      --no-verify\n");
1246 }
1247
1248 void show_explain()
1249 {
1250         usage_header();
1251         usage_summary();
1252         printf("For encoding:\n");
1253         printf("  The input file(s) may be a PCM RIFF WAVE file, AIFF (or uncompressed AIFF-C)\n");
1254         printf("  file, or raw samples.\n");
1255         printf("  The output file(s) will be in native FLAC or Ogg FLAC format\n");
1256         printf("For decoding, the reverse is true.\n");
1257         printf("\n");
1258         printf("A single INPUTFILE may be - for stdin.  No INPUTFILE implies stdin.  Use of\n");
1259         printf("stdin implies -c (write to stdout).  Normally you should use:\n");
1260         printf("   flac [options] -o outfilename  or  flac -d [options] -o outfilename\n");
1261         printf("instead of:\n");
1262         printf("   flac [options] > outfilename   or  flac -d [options] > outfilename\n");
1263         printf("since the former allows flac to seek backwards to write the STREAMINFO or\n");
1264         printf("WAVE/AIFF header contents when necessary.\n");
1265         printf("\n");
1266         printf("flac checks for the presence of a AIFF/WAVE header to decide whether or not to\n");
1267         printf("treat an input file as AIFF/WAVE format or raw samples.  If any input file is\n");
1268         printf("raw you must specify the format options {-fb|fl} -fc -fp and -fs, which will\n");
1269         printf("apply to all raw files.  You can force AIFF/WAVE files to be treated as raw\n");
1270         printf("files using -fr.\n");
1271         printf("\n");
1272         printf("general options:\n");
1273         printf("  -v, --version                Show the flac version number\n");
1274         printf("  -h, --help                   Show basic usage a list of all options\n");
1275         printf("  -H, --explain                Show this screen\n");
1276         printf("  -d, --decode                 Decode (the default behavior is to encode)\n");
1277         printf("  -t, --test                   Same as -d except no decoded file is written\n");
1278         printf("  -a, --analyze                Same as -d except an analysis file is written\n");
1279         printf("  -c, --stdout                 Write output to stdout\n");
1280         printf("  -s, --silent                 Do not write runtime encode/decode statistics\n");
1281         printf("      --totally-silent         Do not print anything of any kind, including\n");
1282         printf("                               warnings or errors.  The exit code will be the\n");
1283         printf("                               only way to determine successful completion.\n");
1284         printf("  -f, --force                  Force overwriting of output files\n");
1285         printf("  -o, --output-name=FILENAME   Force the output file name; usually flac just\n");
1286         printf("                               changes the extension.  May only be used when\n");
1287         printf("                               encoding a single file.  May not be used in\n");
1288         printf("                               conjunction with --output-prefix.\n");
1289         printf("      --output-prefix=STRING   Prefix each output file name with the given\n");
1290         printf("                               STRING.  This can be useful for encoding or\n");
1291         printf("                               decoding files to a different directory.  Make\n");
1292         printf("                               sure if your STRING is a path name that it ends\n");
1293         printf("                               with a '/' slash.\n");
1294         printf("      --delete-input-file      Automatically delete the input file after a\n");
1295         printf("                               successful encode or decode.  If there was an\n");
1296         printf("                               error (including a verify error) the input file\n");
1297         printf("                               is left intact.\n");
1298         printf("      --skip={#|mm:ss.ss}      Skip the first # samples of each input file; can\n");
1299         printf("                               be used both for encoding and decoding.  The\n");
1300         printf("                               alternative form mm:ss.ss can be used to specify\n");
1301         printf("                               minutes, seconds, and fractions of a second.\n");
1302         printf("      --until={#|[+|-]mm:ss.ss}  Stop at the given sample number for each input\n");
1303         printf("                               file.  The given sample number is not included\n");
1304         printf("                               in the decoded output.  The alternative form\n");
1305         printf("                               mm:ss.ss can be used to specify minutes,\n");
1306         printf("                               seconds, and fractions of a second.  If a `+'\n");
1307         printf("                               sign is at the beginning, the --until point is\n");
1308         printf("                               relative to the --skip point.  If a `-' sign is\n");
1309         printf("                               at the beginning, the --until point is relative\n");
1310         printf("                               to end of the audio.\n");
1311 #ifdef FLAC__HAS_OGG
1312         printf("      --ogg                    When encoding, generate Ogg FLAC output instead\n");
1313         printf("                               of native FLAC.  Ogg FLAC streams are FLAC\n");
1314         printf("                               streams wrapped in an Ogg transport layer.  The\n");
1315         printf("                               resulting file should have an '.ogg' extension\n");
1316         printf("                               and will still be decodable by flac.  When\n");
1317         printf("                               decoding, force the input to be treated as\n");
1318         printf("                               Ogg FLAC.  This is useful when piping input\n");
1319         printf("                               from stdin or when the filename does not end in\n");
1320         printf("                               '.ogg'.\n");
1321         printf("      --serial-number          Serial number to use for the FLAC stream.  When\n");
1322         printf("                               encoding and no serial number is given, flac\n");
1323         printf("                               uses '0'.  When decoding and no number is\n");
1324         printf("                               given, flac uses the serial number of the first\n");
1325         printf("                               page.\n");
1326 #endif
1327         printf("analysis options:\n");
1328         printf("      --residual-text          Include residual signal in text output.  This\n");
1329         printf("                               will make the file very big, much larger than\n");
1330         printf("                               even the decoded file.\n");
1331         printf("      --residual-gnuplot       Generate gnuplot files of residual distribution\n");
1332         printf("                               of each subframe\n");
1333         printf("decoding options:\n");
1334         printf("  -F, --decode-through-errors  By default flac stops decoding with an error\n");
1335         printf("                               and removes the partially decoded file if it\n");
1336         printf("                               encounters a bitstream error.  With -F, errors\n");
1337         printf("                               are still printed but flac will continue\n");
1338         printf("                               decoding to completion.  Note that errors may\n");
1339         printf("                               cause the decoded audio to be missing some\n");
1340         printf("                               samples or have silent sections.\n");
1341         printf("      --cue=[#.#][-[#.#]]      Set the beginning and ending cuepoints to\n");
1342         printf("                               decode.  The optional first #.# is the track and\n");
1343         printf("                               index point at which decoding will start; the\n");
1344         printf("                               default is the beginning of the stream.  The\n");
1345         printf("                               optional second #.# is the track and index point\n");
1346         printf("                               at which decoding will end; the default is the\n");
1347         printf("                               end of the stream.  If the cuepoint does not\n");
1348         printf("                               exist, the closest one before it (for the start\n");
1349         printf("                               point) or after it (for the end point) will be\n");
1350         printf("                               used.  The cuepoints are merely translated into\n");
1351         printf("                               sample numbers then used as --skip and --until.\n");
1352         printf("encoding options:\n");
1353         printf("  -V, --verify                 Verify a correct encoding by decoding the\n");
1354         printf("                               output in parallel and comparing to the\n");
1355         printf("                               original\n");
1356         printf("      --lax                    Allow encoder to generate non-Subset files\n");
1357         printf("      --sector-align           Align encoding of multiple CD format WAVE files\n");
1358         printf("                               on sector boundaries.\n");
1359         printf("      --replay-gain            Calculate ReplayGain values and store them as\n");
1360         printf("                               FLAC tags.  Title gains/peaks will be computed\n");
1361         printf("                               for each file, and an album gain/peak will be\n");
1362         printf("                               computed for all files.  All input files must\n");
1363         printf("                               have the same resolution, sample rate, and\n");
1364         printf("                               number of channels.  The sample rate must be\n");
1365         printf("                               one of 8, 11.025, 12, 16, 22.05, 24, 32, 44.1,\n");
1366         printf("                               or 48 kHz.  NOTE: this option may also leave a\n");
1367         printf("                               few extra bytes in the PADDING block.\n");
1368         printf("      --cuesheet=FILENAME      Import the given cuesheet file and store it in\n");
1369         printf("                               a CUESHEET metadata block.  This option may only\n");
1370         printf("                               be used when encoding a single file.  A\n");
1371         printf("                               seekpoint will be added for each index point in\n");
1372         printf("                               the cuesheet to the SEEKTABLE unless\n");
1373         printf("                               --no-cued-seekpoints is specified.\n");
1374         printf("  -T, --tag=FIELD=VALUE        Add a FLAC tag.  Make sure to quote the\n");
1375         printf("                               comment if necessary.  This option may appear\n");
1376         printf("                               more than once to add several comments.  NOTE:\n");
1377         printf("                               all tags will be added to all encoded files.\n");
1378         printf("  -S, --seekpoint={#|X|#x|#s}  Include a point or points in a SEEKTABLE\n");
1379         printf("       #  : a specific sample number for a seek point\n");
1380         printf("       X  : a placeholder point (always goes at the end of the SEEKTABLE)\n");
1381         printf("       #x : # evenly spaced seekpoints, the first being at sample 0\n");
1382         printf("       #s : a seekpoint every # seconds; # does not have to be a whole number\n");
1383         printf("     You may use many -S options; the resulting SEEKTABLE will be the unique-\n");
1384         printf("           ified union of all such values.\n");
1385         printf("     With no -S options, flac defaults to '-S 10s'.  Use -S- for no SEEKTABLE.\n");
1386         printf("     Note: -S #x and -S #s will not work if the encoder can't determine the\n");
1387         printf("           input size before starting.\n");
1388         printf("     Note: if you use -S # and # is >= samples in the input, there will be\n");
1389         printf("           either no seek point entered (if the input size is determinable\n");
1390         printf("           before encoding starts) or a placeholder point (if input size is not\n");
1391         printf("           determinable)\n");
1392         printf("  -P, --padding=#              Tell the encoder to write a PADDING metadata\n");
1393         printf("                               block of the given length (in bytes) after the\n");
1394         printf("                               STREAMINFO block.  This is useful if you plan\n");
1395         printf("                               to tag the file later with an APPLICATION\n");
1396         printf("                               block; instead of having to rewrite the entire\n");
1397         printf("                               file later just to insert your block, you can\n");
1398         printf("                               write directly over the PADDING block.  Note\n");
1399         printf("                               that the total length of the PADDING block will\n");
1400         printf("                               be 4 bytes longer than the length given because\n");
1401         printf("                               of the 4 metadata block header bytes.  You can\n");
1402         printf("                               force no PADDING block at all to be written with\n");
1403         printf("                               --no-padding.  The encoder writes a PADDING\n");
1404         printf("                               block of 4096 bytes by default.\n");
1405         printf("  -b, --blocksize=#            Specify the blocksize in samples; the default is\n");
1406         printf("                               1152 for -l 0, else 4608; must be one of 192,\n");
1407         printf("                               576, 1152, 2304, 4608, 256, 512, 1024, 2048,\n");
1408         printf("                               4096, 8192, 16384, or 32768 (unless --lax is\n");
1409         printf("                               used)\n");
1410         printf("  -0, --compression-level-0, --fast  Synonymous with -l 0 -b 1152 -r 2,2\n");
1411         printf("  -1, --compression-level-1          Synonymous with -l 0 -b 1152 -M -r 2,2\n");
1412         printf("  -2, --compression-level-2          Synonymous with -l 0 -b 1152 -m -r 3\n");
1413         printf("  -3, --compression-level-3          Synonymous with -l 6 -b 4608 -r 3,3\n");
1414         printf("  -4, --compression-level-4          Synonymous with -l 8 -b 4608 -M -r 3,3\n");
1415         printf("  -5, --compression-level-5          Synonymous with -l 8 -b 4608 -m -r 3,3\n");
1416         printf("                                     -5 is the default setting\n");
1417         printf("  -6, --compression-level-6          Synonymous with -l 8 -b 4608 -m -r 4\n");
1418         printf("  -7, --compression-level-7          Synonymous with -l 8 -b 4608 -m -e -r 6\n");
1419         printf("  -8, --compression-level-8, --best  Synonymous with -l 12 -b 4608 -m -e -r 6\n");
1420         printf("  -m, --mid-side                     Try mid-side coding for each frame\n");
1421         printf("                                     (stereo only)\n");
1422         printf("  -M, --adaptive-mid-side            Adaptive mid-side coding for all frames\n");
1423         printf("                                     (stereo only)\n");
1424         printf("  -e, --exhaustive-model-search      Do exhaustive model search (expensive!)\n");
1425         printf("  -l, --max-lpc-order=#              Max LPC order; 0 => only fixed predictors\n");
1426         printf("  -p, --qlp-coeff-precision-search   Do exhaustive search of LP coefficient\n");
1427         printf("                                     quantization (expensive!); overrides -q;\n");
1428         printf("                                     does nothing if using -l 0\n");
1429         printf("  -q, --qlp-coeff-precision=#        Specify precision in bits of quantized\n");
1430         printf("                                     linear-predictor coefficients; 0 => let\n");
1431         printf("                                     encoder decide (the minimun is %u, the\n", FLAC__MIN_QLP_COEFF_PRECISION);
1432         printf("                                     default is -q 0)\n");
1433         printf("  -r, --rice-partition-order=[#,]#   Set [min,]max residual partition order\n");
1434         printf("                                     (# is 0..16; min defaults to 0; the\n");
1435         printf("                                     default is -r 0; above 4 doesn't usually\n");
1436         printf("                                     help much)\n");
1437         printf("format options:\n");
1438         printf("      --endian={big|little}    Set byte order for samples\n");
1439         printf("      --channels=#             Number of channels\n");
1440         printf("      --bps=#                  Number of bits per sample\n");
1441         printf("      --sample-rate=#          Sample rate in Hz\n");
1442         printf("      --sign={signed|unsigned} Sign of samples (the default is signed)\n");
1443         printf("      --input-size=#           Size of the raw input in bytes.  If you are\n");
1444         printf("                               encoding raw samples from stdin, you must set\n");
1445         printf("                               this option in order to be able to use --skip,\n");
1446         printf("                               --until, --cue-sheet, or other options that need\n");
1447         printf("                               to know the size of the input beforehand.  If\n");
1448         printf("                               the size given is greater than what is found in\n");
1449         printf("                               the input stream, the encoder will complain\n");
1450         printf("                               about an unexpected end-of-file.  If the size\n");
1451         printf("                               given is less, samples will be truncated.\n");
1452         printf("      --force-aiff-format      Force the decoder to output AIFF format.  This\n");
1453         printf("                               option is not needed if the output filename (as\n");
1454         printf("                               set by -o) ends with .aif or .aiff; this option\n");
1455         printf("                               has no effect when encoding since input AIFF is\n");
1456         printf("                               auto-detected.\n");
1457         printf("      --force-raw-format       Force input (when encoding) or output (when\n");
1458         printf("                               decoding) to be treated as raw samples\n");
1459         printf("negative options:\n");
1460         printf("      --no-adaptive-mid-side\n");
1461         printf("      --no-decode-through-errors\n");
1462         printf("      --no-delete-input-file\n");
1463         printf("      --no-exhaustive-model-search\n");
1464         printf("      --no-lax\n");
1465         printf("      --no-mid-side\n");
1466 #ifdef FLAC__HAS_OGG
1467         printf("      --no-ogg\n");
1468 #endif
1469         printf("      --no-padding\n");
1470         printf("      --no-qlp-coeff-prec-search\n");
1471         printf("      --no-residual-gnuplot\n");
1472         printf("      --no-residual-text\n");
1473         printf("      --no-sector-align\n");
1474         printf("      --no-seektable\n");
1475         printf("      --no-silent\n");
1476         printf("      --no-force\n");
1477         printf("      --no-verify\n");
1478 }
1479
1480 void format_mistake(const char *infilename, const char *wrong, const char *right)
1481 {
1482         flac__utils_printf(stderr, 1, "WARNING: %s is not a %s file; treating as a %s file\n", infilename, wrong, right);
1483 }
1484
1485 int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file)
1486 {
1487         FILE *encode_infile;
1488         FLAC__byte lookahead[12];
1489         unsigned lookahead_length = 0;
1490         FileFormat fmt = RAW;
1491         FLAC__bool is_aifc = false;
1492         int retval;
1493         long infilesize;
1494         encode_options_t common_options;
1495         const char *outfilename = get_encoded_outfilename(infilename);
1496
1497         if(0 == outfilename) {
1498                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", infilename);
1499                 return 1;
1500         }
1501
1502         /*
1503          * Error if output file already exists (and -f not used).
1504          * Use grabbag__file_get_filesize() as a cheap way to check.
1505          */
1506         if(!option_values.test_only && !option_values.force_file_overwrite && grabbag__file_get_filesize(outfilename) != (off_t)(-1)) {
1507                 flac__utils_printf(stderr, 1, "ERROR: output file %s already exists, use -f to override\n", outfilename);
1508                 return 1;
1509         }
1510
1511         if(0 == strcmp(infilename, "-")) {
1512                 infilesize = -1;
1513                 encode_infile = grabbag__file_get_binary_stdin();
1514         }
1515         else {
1516                 infilesize = grabbag__file_get_filesize(infilename);
1517                 if(0 == (encode_infile = fopen(infilename, "rb"))) {
1518                         flac__utils_printf(stderr, 1, "ERROR: can't open input file %s\n", infilename);
1519                         return 1;
1520                 }
1521         }
1522
1523         if(!option_values.force_raw_format) {
1524                 /* first set format based on name */
1525                 if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".wav"))
1526                         fmt= WAV;
1527                 else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".aif"))
1528                         fmt= AIF;
1529                 else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".aiff"))
1530                         fmt= AIF;
1531
1532                 /* attempt to guess the file type based on the first 12 bytes */
1533                 if((lookahead_length = fread(lookahead, 1, 12, encode_infile)) < 12) {
1534                         if(fmt != RAW)
1535                                 format_mistake(infilename, fmt == AIF ? "AIFF" : "WAVE", "raw");
1536                         fmt= RAW;
1537                 }
1538                 else {
1539                         if(!strncmp((const char *)lookahead, "RIFF", 4) && !strncmp((const char *)lookahead+8, "WAVE", 4))
1540                                 fmt= WAV;
1541                         else if(!strncmp((const char *)lookahead, "FORM", 4) && !strncmp((const char *)lookahead+8, "AIFF", 4))
1542                                 fmt= AIF;
1543                         else if(!strncmp((const char *)lookahead, "FORM", 4) && !strncmp((const char *)lookahead+8, "AIFC", 4)) {
1544                                 fmt= AIF;
1545                                 is_aifc = true;
1546                         }
1547                         else {
1548                                 if(fmt != RAW)
1549                                         format_mistake(infilename, fmt == AIF ? "AIFF" : "WAVE", "raw");
1550                                 fmt= RAW;
1551                         }
1552                 }
1553         }
1554
1555         if(option_values.format_input_size >= 0) {
1556                 if (fmt != RAW || infilesize >= 0) {
1557                         flac__utils_printf(stderr, 1, "ERROR: can only use --input-size when encoding raw samples from stdin\n");
1558                         return 1;
1559                 }
1560                 else {
1561                         infilesize = option_values.format_input_size;
1562                 }
1563         }
1564
1565         if(option_values.sector_align && fmt == RAW && infilesize < 0) {
1566                 flac__utils_printf(stderr, 1, "ERROR: can't --sector-align when the input size is unknown\n");
1567                 return 1;
1568         }
1569
1570         if(fmt == RAW) {
1571                 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)
1572                         return usage_error("ERROR: for encoding a raw file you must specify a value for --endian, --sign, --channels, --bps, and --sample-rate\n");
1573         }
1574
1575         if(encode_infile == stdin || option_values.force_to_stdout) {
1576                 if(option_values.replay_gain)
1577                         return usage_error("ERROR: --replay-gain cannot be used when encoding to stdout\n");
1578         }
1579
1580         if(!flac__utils_parse_skip_until_specification(option_values.skip_specification, &common_options.skip_specification) || common_options.skip_specification.is_relative)
1581                 return usage_error("ERROR: invalid value for --skip\n");
1582
1583         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 */
1584                 return usage_error("ERROR: invalid value for --until\n");
1585         /* if there is no "--until" we want to default to "--until=-0" */
1586         if(0 == option_values.until_specification)
1587                 common_options.until_specification.is_relative = true;
1588
1589         common_options.verify = option_values.verify;
1590 #ifdef FLAC__HAS_OGG
1591         common_options.use_ogg = option_values.use_ogg;
1592         /* set a random serial number if one has not yet been specified */
1593         if(!option_values.has_serial_number) {
1594                 srand(time(0));
1595                 option_values.serial_number = rand();
1596                 option_values.has_serial_number = true;
1597         }
1598         common_options.serial_number = option_values.serial_number++;
1599 #endif
1600         common_options.lax = option_values.lax;
1601         common_options.do_mid_side = option_values.do_mid_side;
1602         common_options.loose_mid_side = option_values.loose_mid_side;
1603         common_options.do_exhaustive_model_search = option_values.do_exhaustive_model_search;
1604         common_options.do_escape_coding = option_values.do_escape_coding;
1605         common_options.do_qlp_coeff_prec_search = option_values.do_qlp_coeff_prec_search;
1606         common_options.min_residual_partition_order = option_values.min_residual_partition_order;
1607         common_options.max_residual_partition_order = option_values.max_residual_partition_order;
1608         common_options.rice_parameter_search_dist = option_values.rice_parameter_search_dist;
1609         common_options.max_lpc_order = option_values.max_lpc_order;
1610         common_options.blocksize = (unsigned)option_values.blocksize;
1611         common_options.qlp_coeff_precision = option_values.qlp_coeff_precision;
1612         common_options.padding = option_values.padding;
1613         common_options.requested_seek_points = option_values.requested_seek_points;
1614         common_options.num_requested_seek_points = option_values.num_requested_seek_points;
1615         common_options.cuesheet_filename = option_values.cuesheet_filename;
1616         common_options.cued_seekpoints = option_values.cued_seekpoints;
1617         common_options.is_first_file = is_first_file;
1618         common_options.is_last_file = is_last_file;
1619         common_options.align_reservoir = align_reservoir;
1620         common_options.align_reservoir_samples = &align_reservoir_samples;
1621         common_options.replay_gain = option_values.replay_gain;
1622         common_options.sector_align = option_values.sector_align;
1623         common_options.vorbis_comment = option_values.vorbis_comment;
1624         common_options.debug.disable_constant_subframes = option_values.debug.disable_constant_subframes;
1625         common_options.debug.disable_fixed_subframes = option_values.debug.disable_fixed_subframes;
1626         common_options.debug.disable_verbatim_subframes = option_values.debug.disable_verbatim_subframes;
1627
1628         if(fmt == RAW) {
1629                 raw_encode_options_t options;
1630
1631                 options.common = common_options;
1632                 options.is_big_endian = option_values.format_is_big_endian;
1633                 options.is_unsigned_samples = option_values.format_is_unsigned_samples;
1634                 options.channels = option_values.format_channels;
1635                 options.bps = option_values.format_bps;
1636                 options.sample_rate = option_values.format_sample_rate;
1637
1638                 retval = flac__encode_raw(encode_infile, infilesize, infilename, outfilename, lookahead, lookahead_length, options);
1639         }
1640         else {
1641                 wav_encode_options_t options;
1642
1643                 options.common = common_options;
1644
1645                 if(fmt == AIF)
1646                         retval = flac__encode_aif(encode_infile, infilesize, infilename, outfilename, lookahead, lookahead_length, options, is_aifc);
1647                 else
1648                         retval = flac__encode_wav(encode_infile, infilesize, infilename, outfilename, lookahead, lookahead_length, options);
1649         }
1650
1651         if(retval == 0 && strcmp(infilename, "-")) {
1652                 if(strcmp(outfilename, "-")) {
1653                         if(option_values.replay_gain) {
1654                                 float title_gain, title_peak;
1655                                 const char *error;
1656                                 grabbag__replaygain_get_title(&title_gain, &title_peak);
1657                                 if(0 != (error = grabbag__replaygain_store_to_file_title(outfilename, title_gain, title_peak, /*preserve_modtime=*/true))) {
1658                                         flac__utils_printf(stderr, 1, "%s: ERROR writing ReplayGain title tags\n", outfilename);
1659                                 }
1660                         }
1661                         grabbag__file_copy_metadata(infilename, outfilename);
1662                 }
1663                 if(option_values.delete_input)
1664                         unlink(infilename);
1665         }
1666
1667         return retval;
1668 }
1669
1670 int decode_file(const char *infilename)
1671 {
1672         int retval;
1673         FLAC__bool treat_as_ogg = false;
1674         decode_options_t common_options;
1675         const char *outfilename = get_decoded_outfilename(infilename);
1676
1677         if(0 == outfilename) {
1678                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", infilename);
1679                 return 1;
1680         }
1681
1682         /*
1683          * Error if output file already exists (and -f not used).
1684          * Use grabbag__file_get_filesize() as a cheap way to check.
1685          */
1686         if(!option_values.test_only && !option_values.force_file_overwrite && grabbag__file_get_filesize(outfilename) != (off_t)(-1)) {
1687                 flac__utils_printf(stderr, 1, "ERROR: output file %s already exists, use -f to override\n", outfilename);
1688                 return 1;
1689         }
1690
1691         if(!option_values.test_only && !option_values.analyze) {
1692                 if(option_values.force_raw_format && (option_values.format_is_big_endian < 0 || option_values.format_is_unsigned_samples < 0))
1693                         return usage_error("ERROR: for decoding to a raw file you must specify a value for --endian and --sign\n");
1694         }
1695
1696         if(option_values.use_ogg)
1697                 treat_as_ogg = true;
1698         else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".ogg"))
1699                 treat_as_ogg = true;
1700         else
1701                 treat_as_ogg = false;
1702
1703 #ifndef FLAC__HAS_OGG
1704         if(treat_as_ogg) {
1705                 flac__utils_printf(stderr, 1, "%s: Ogg support has not been built into this copy of flac\n", infilename);
1706                 return 1;
1707         }
1708 #endif
1709
1710         if(!flac__utils_parse_skip_until_specification(option_values.skip_specification, &common_options.skip_specification) || common_options.skip_specification.is_relative)
1711                 return usage_error("ERROR: invalid value for --skip\n");
1712
1713         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 */
1714                 return usage_error("ERROR: invalid value for --until\n");
1715         /* if there is no "--until" we want to default to "--until=-0" */
1716         if(0 == option_values.until_specification)
1717                 common_options.until_specification.is_relative = true;
1718
1719         if(option_values.cue_specification) {
1720                 if(!flac__utils_parse_cue_specification(option_values.cue_specification, &common_options.cue_specification))
1721                         return usage_error("ERROR: invalid value for --cue\n");
1722                 common_options.has_cue_specification = true;
1723         }
1724         else
1725                 common_options.has_cue_specification = false;
1726
1727         common_options.continue_through_decode_errors = option_values.continue_through_decode_errors;
1728         common_options.replaygain_synthesis_spec = option_values.replaygain_synthesis_spec;
1729 #ifdef FLAC__HAS_OGG
1730         common_options.is_ogg = treat_as_ogg;
1731         common_options.use_first_serial_number = !option_values.has_serial_number;
1732         common_options.serial_number = option_values.serial_number;
1733 #endif
1734
1735         if(!option_values.force_raw_format) {
1736                 wav_decode_options_t options;
1737
1738                 options.common = common_options;
1739
1740                 if(
1741                         option_values.force_aiff_format ||
1742                         (strlen(outfilename) >= 4 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-4), ".aif")) ||
1743                         (strlen(outfilename) >= 5 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-5), ".aiff"))
1744                 )
1745                         retval = flac__decode_aiff(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
1746                 else
1747                         retval = flac__decode_wav(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
1748         }
1749         else {
1750                 raw_decode_options_t options;
1751
1752                 options.common = common_options;
1753                 options.is_big_endian = option_values.format_is_big_endian;
1754                 options.is_unsigned_samples = option_values.format_is_unsigned_samples;
1755
1756                 retval = flac__decode_raw(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
1757         }
1758
1759         if(retval == 0 && strcmp(infilename, "-")) {
1760                 if(strcmp(outfilename, "-"))
1761                         grabbag__file_copy_metadata(infilename, outfilename);
1762                 if(option_values.delete_input && !option_values.test_only && !option_values.analyze)
1763                         unlink(infilename);
1764         }
1765
1766         return retval;
1767 }
1768
1769 const char *get_encoded_outfilename(const char *infilename)
1770 {
1771         const char *suffix = (option_values.use_ogg? ".ogg" : ".flac");
1772         return get_outfilename(infilename, suffix);
1773 }
1774
1775 const char *get_decoded_outfilename(const char *infilename)
1776 {
1777         const char *suffix;
1778         if(option_values.analyze) {
1779                 suffix = ".ana";
1780         }
1781         else if(option_values.force_raw_format) {
1782                 suffix = ".raw";
1783         }
1784         else if(option_values.force_aiff_format) {
1785                 suffix = ".aiff";
1786         }
1787         else {
1788                 suffix = ".wav";
1789         }
1790         return get_outfilename(infilename, suffix);
1791 }
1792
1793 const char *get_outfilename(const char *infilename, const char *suffix)
1794 {
1795         if(0 == option_values.cmdline_forced_outfilename) {
1796                 static char buffer[4096]; /* @@@ bad MAGIC NUMBER */
1797
1798                 if(0 == strcmp(infilename, "-") || option_values.force_to_stdout) {
1799                         strcpy(buffer, "-");
1800                 }
1801                 else {
1802                         char *p;
1803                         if (flac__strlcpy(buffer, option_values.output_prefix? option_values.output_prefix : "", sizeof buffer) >= sizeof buffer)
1804                                 return 0;
1805                         if (flac__strlcat(buffer, infilename, sizeof buffer) >= sizeof buffer)
1806                                 return 0;
1807                         if(0 == (p = strrchr(buffer, '.'))) {
1808                                 if (flac__strlcat(buffer, suffix, sizeof buffer) >= sizeof buffer)
1809                                         return 0;
1810                         }
1811                         else {
1812                                 if(0 == strcmp(p, suffix)) {
1813                                         *p = '\0';
1814                                         if (flac__strlcat(buffer, "_new", sizeof buffer) >= sizeof buffer)
1815                                                 return 0;
1816                                 }
1817                                 else {
1818                                         *p = '\0';
1819                                 }
1820                                 if (flac__strlcat(buffer, suffix, sizeof buffer) >= sizeof buffer)
1821                                         return 0;
1822                         }
1823                 }
1824                 return buffer;
1825         }
1826         else
1827                 return option_values.cmdline_forced_outfilename;
1828 }
1829
1830 void die(const char *message)
1831 {
1832         FLAC__ASSERT(0 != message);
1833         flac__utils_printf(stderr, 1, "ERROR: %s\n", message);
1834         exit(1);
1835 }
1836
1837 char *local_strdup(const char *source)
1838 {
1839         char *ret;
1840         FLAC__ASSERT(0 != source);
1841         if(0 == (ret = strdup(source)))
1842                 die("out of memory during strdup()");
1843         return ret;
1844 }