src/flac/main.c

   1 /* flac - Command-line FLAC encoder/decoder
   2  * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007,2008,2009  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 along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #if HAVE_CONFIG_H
  20 #  include <config.h>
  21 #endif
  22
  23 #include <ctype.h>
  24 #include <errno.h>
  25 #include <locale.h>
  26 #include <stdarg.h>
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <time.h>
  31
  32 #if !defined _MSC_VER && !defined __MINGW32__
  33 /* unlink is in stdio.h in VC++ */
  34 #include <unistd.h> /* for unlink() */
  35 #endif
  36 #include "FLAC/all.h"
  37 #include "share/alloc.h"
  38 #include "share/grabbag.h"
  39 #include "share/compat.h"
  40 #include "share/safe_str.h"
  41 #include "analyze.h"
  42 #include "decode.h"
  43 #include "encode.h"
  44 #include "local_string_utils.h" /* for flac__strlcat() and flac__strlcpy() */
  45 #include "utils.h"
  46 #include "vorbiscomment.h"
  47
  48 #if defined _MSC_VER || defined __MINGW32__
  49 #define FLAC__STRCASECMP stricmp
  50 #else
  51 #define FLAC__STRCASECMP strcasecmp
  52 #endif
  53
  54 #if 0
  55 /*[JEC] was:#if HAVE_GETOPT_LONG*/
  56 /*[JEC] see flac/include/share/getopt.h as to why the change */
  57 #  include <getopt.h>
  58 #else
  59 #  include "share/getopt.h"
  60 #endif
  61
  62 static int do_it(void);
  63
  64 static FLAC__bool init_options(void);
  65 static int parse_options(int argc, char *argv[]);
  66 static int parse_option(int short_option, const char *long_option, const char *option_argument);
  67 static void free_options(void);
  68 static void add_compression_setting_bool(compression_setting_type_t type, FLAC__bool value);
  69 static void add_compression_setting_string(compression_setting_type_t type, const char *value);
  70 static void add_compression_setting_unsigned(compression_setting_type_t type, unsigned value);
  71
  72 static int usage_error(const char *message, ...);
  73 static void short_usage(void);
  74 static void show_version(void);
  75 static void show_help(void);
  76 static void show_explain(void);
  77 static void format_mistake(const char *infilename, FileFormat wrong, FileFormat right);
  78
  79 static int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file);
  80 static int decode_file(const char *infilename);
  81
  82 static const char *get_encoded_outfilename(const char *infilename);
  83 static const char *get_decoded_outfilename(const char *infilename);
  84 static const char *get_outfilename(const char *infilename, const char *suffix);
  85
  86 static void die(const char *message);
  87 static int conditional_fclose(FILE *f);
  88 static char *local_strdup(const char *source);
  89
  90 /*
  91  * share__getopt format struct; note that for long options with no
  92  * short option equivalent we just set the 'val' field to 0.
  93  */
  94 static struct share__option long_options_[] = {
  95         /*
  96          * general options
  97          */
  98         { "help"                  , share__no_argument, 0, 'h' },
  99         { "explain"               , share__no_argument, 0, 'H' },
 100         { "version"               , share__no_argument, 0, 'v' },
 101         { "decode"                , share__no_argument, 0, 'd' },
 102         { "analyze"               , share__no_argument, 0, 'a' },
 103         { "test"                  , share__no_argument, 0, 't' },
 104         { "stdout"                , share__no_argument, 0, 'c' },
 105         { "silent"                , share__no_argument, 0, 's' },
 106         { "totally-silent"        , share__no_argument, 0, 0 },
 107         { "warnings-as-errors"    , share__no_argument, 0, 'w' },
 108         { "force"                 , share__no_argument, 0, 'f' },
 109         { "delete-input-file"     , share__no_argument, 0, 0 },
 110         { "preserve-modtime"      , share__no_argument, 0, 0 },
 111         { "keep-foreign-metadata" , share__no_argument, 0, 0 },
 112         { "output-prefix"         , share__required_argument, 0, 0 },
 113         { "output-name"           , share__required_argument, 0, 'o' },
 114         { "skip"                  , share__required_argument, 0, 0 },
 115         { "until"                 , share__required_argument, 0, 0 },
 116         { "channel-map"           , share__required_argument, 0, 0 }, /* undocumented */
 117
 118         /*
 119          * decoding options
 120          */
 121         { "decode-through-errors", share__no_argument, 0, 'F' },
 122         { "cue"                  , share__required_argument, 0, 0 },
 123         { "apply-replaygain-which-is-not-lossless", share__optional_argument, 0, 0 }, /* undocumented */
 124
 125         /*
 126          * encoding options
 127          */
 128         { "cuesheet"                  , share__required_argument, 0, 0 },
 129         { "no-cued-seekpoints"        , share__no_argument, 0, 0 },
 130         { "picture"                   , share__required_argument, 0, 0 },
 131         { "tag"                       , share__required_argument, 0, 'T' },
 132         { "tag-from-file"             , share__required_argument, 0, 0 },
 133         { "compression-level-0"       , share__no_argument, 0, '0' },
 134         { "compression-level-1"       , share__no_argument, 0, '1' },
 135         { "compression-level-2"       , share__no_argument, 0, '2' },
 136         { "compression-level-3"       , share__no_argument, 0, '3' },
 137         { "compression-level-4"       , share__no_argument, 0, '4' },
 138         { "compression-level-5"       , share__no_argument, 0, '5' },
 139         { "compression-level-6"       , share__no_argument, 0, '6' },
 140         { "compression-level-7"       , share__no_argument, 0, '7' },
 141         { "compression-level-8"       , share__no_argument, 0, '8' },
 142         { "compression-level-9"       , share__no_argument, 0, '9' },
 143         { "best"                      , share__no_argument, 0, '8' },
 144         { "fast"                      , share__no_argument, 0, '0' },
 145         { "verify"                    , share__no_argument, 0, 'V' },
 146         { "force-raw-format"          , share__no_argument, 0, 0 },
 147         { "force-aiff-format"         , share__no_argument, 0, 0 },
 148         { "force-rf64-format"         , share__no_argument, 0, 0 },
 149         { "force-wave64-format"       , share__no_argument, 0, 0 },
 150         { "lax"                       , share__no_argument, 0, 0 },
 151         { "replay-gain"               , share__no_argument, 0, 0 },
 152         { "ignore-chunk-sizes"        , share__no_argument, 0, 0 },
 153         { "sector-align"              , share__no_argument, 0, 0 }, /* DEPRECATED */
 154         { "seekpoint"                 , share__required_argument, 0, 'S' },
 155         { "padding"                   , share__required_argument, 0, 'P' },
 156 #if FLAC__HAS_OGG
 157         { "ogg"                       , share__no_argument, 0, 0 },
 158         { "serial-number"             , share__required_argument, 0, 0 },
 159 #endif
 160         { "blocksize"                 , share__required_argument, 0, 'b' },
 161         { "exhaustive-model-search"   , share__no_argument, 0, 'e' },
 162         { "max-lpc-order"             , share__required_argument, 0, 'l' },
 163         { "apodization"               , share__required_argument, 0, 'A' },
 164         { "mid-side"                  , share__no_argument, 0, 'm' },
 165         { "adaptive-mid-side"         , share__no_argument, 0, 'M' },
 166         { "qlp-coeff-precision-search", share__no_argument, 0, 'p' },
 167         { "qlp-coeff-precision"       , share__required_argument, 0, 'q' },
 168         { "rice-partition-order"      , share__required_argument, 0, 'r' },
 169         { "endian"                    , share__required_argument, 0, 0 },
 170         { "channels"                  , share__required_argument, 0, 0 },
 171         { "bps"                       , share__required_argument, 0, 0 },
 172         { "sample-rate"               , share__required_argument, 0, 0 },
 173         { "sign"                      , share__required_argument, 0, 0 },
 174         { "input-size"                , share__required_argument, 0, 0 },
 175
 176         /*
 177          * analysis options
 178          */
 179         { "residual-gnuplot", share__no_argument, 0, 0 },
 180         { "residual-text", share__no_argument, 0, 0 },
 181
 182         /*
 183          * negatives
 184          */
 185         { "no-preserve-modtime"       , share__no_argument, 0, 0 },
 186         { "no-decode-through-errors"  , share__no_argument, 0, 0 },
 187         { "no-silent"                 , share__no_argument, 0, 0 },
 188         { "no-force"                  , share__no_argument, 0, 0 },
 189         { "no-seektable"              , share__no_argument, 0, 0 },
 190         { "no-delete-input-file"      , share__no_argument, 0, 0 },
 191         { "no-keep-foreign-metadata"  , share__no_argument, 0, 0 },
 192         { "no-replay-gain"            , share__no_argument, 0, 0 },
 193         { "no-ignore-chunk-sizes"     , share__no_argument, 0, 0 },
 194         { "no-sector-align"           , share__no_argument, 0, 0 }, /* DEPRECATED */
 195         { "no-utf8-convert"           , share__no_argument, 0, 0 },
 196         { "no-lax"                    , share__no_argument, 0, 0 },
 197 #if FLAC__HAS_OGG
 198         { "no-ogg"                    , share__no_argument, 0, 0 },
 199 #endif
 200         { "no-exhaustive-model-search", share__no_argument, 0, 0 },
 201         { "no-mid-side"               , share__no_argument, 0, 0 },
 202         { "no-adaptive-mid-side"      , share__no_argument, 0, 0 },
 203         { "no-qlp-coeff-prec-search"  , share__no_argument, 0, 0 },
 204         { "no-padding"                , share__no_argument, 0, 0 },
 205         { "no-verify"                 , share__no_argument, 0, 0 },
 206         { "no-warnings-as-errors"     , share__no_argument, 0, 0 },
 207         { "no-residual-gnuplot"       , share__no_argument, 0, 0 },
 208         { "no-residual-text"          , share__no_argument, 0, 0 },
 209         /*
 210          * undocumented debugging options for the test suite
 211          */
 212         { "disable-constant-subframes", share__no_argument, 0, 0 },
 213         { "disable-fixed-subframes"   , share__no_argument, 0, 0 },
 214         { "disable-verbatim-subframes", share__no_argument, 0, 0 },
 215         { "no-md5-sum"                , share__no_argument, 0, 0 },
 216
 217         {0, 0, 0, 0}
 218 };
 219
 220
 221 /*
 222  * global to hold command-line option values
 223  */
 224
 225 static struct {
 226         FLAC__bool show_help;
 227         FLAC__bool show_explain;
 228         FLAC__bool show_version;
 229         FLAC__bool mode_decode;
 230         FLAC__bool verify;
 231         FLAC__bool treat_warnings_as_errors;
 232         FLAC__bool force_file_overwrite;
 233         FLAC__bool continue_through_decode_errors;
 234         replaygain_synthesis_spec_t replaygain_synthesis_spec;
 235         FLAC__bool lax;
 236         FLAC__bool test_only;
 237         FLAC__bool analyze;
 238         FLAC__bool use_ogg;
 239         FLAC__bool has_serial_number; /* true iff --serial-number was used */
 240         long serial_number; /* this is the Ogg serial number and is unused for native FLAC */
 241         FLAC__bool force_to_stdout;
 242         FLAC__bool force_raw_format;
 243         FLAC__bool force_aiff_format;
 244         FLAC__bool force_rf64_format;
 245         FLAC__bool force_wave64_format;
 246         FLAC__bool delete_input;
 247         FLAC__bool preserve_modtime;
 248         FLAC__bool keep_foreign_metadata;
 249         FLAC__bool replay_gain;
 250         FLAC__bool ignore_chunk_sizes;
 251         FLAC__bool sector_align;
 252         FLAC__bool utf8_convert; /* true by default, to convert tag strings from locale to utf-8, false if --no-utf8-convert used */
 253         const char *cmdline_forced_outfilename;
 254         const char *output_prefix;
 255         analysis_options aopts;
 256         int padding; /* -1 => no -P options were given, 0 => -P- was given, else -P value */
 257         size_t num_compression_settings;
 258         compression_setting_t compression_settings[64]; /* bad MAGIC NUMBER but buffer overflow is checked */
 259         const char *skip_specification;
 260         const char *until_specification;
 261         const char *cue_specification;
 262         int format_is_big_endian;
 263         int format_is_unsigned_samples;
 264         int format_channels;
 265         int format_bps;
 266         int format_sample_rate;
 267         FLAC__off_t format_input_size;
 268         char requested_seek_points[5000]; /* bad MAGIC NUMBER but buffer overflow is checked */
 269         int num_requested_seek_points; /* -1 => no -S options were given, 0 => -S- was given */
 270         const char *cuesheet_filename;
 271         FLAC__bool cued_seekpoints;
 272         FLAC__bool channel_map_none; /* --channel-map=none specified, eventually will expand to take actual channel map */
 273
 274         unsigned num_files;
 275         char **filenames;
 276
 277         FLAC__StreamMetadata *vorbis_comment;
 278         FLAC__StreamMetadata *pictures[64];
 279         unsigned num_pictures;
 280
 281         struct {
 282                 FLAC__bool disable_constant_subframes;
 283                 FLAC__bool disable_fixed_subframes;
 284                 FLAC__bool disable_verbatim_subframes;
 285                 FLAC__bool do_md5;
 286         } debug;
 287 } option_values;
 288
 289
 290 /*
 291  * miscellaneous globals
 292  */
 293
 294 static FLAC__int32 align_reservoir_0[588], align_reservoir_1[588]; /* for carrying over samples from --sector-align */ /* DEPRECATED */
 295 static FLAC__int32 *align_reservoir[2] = { align_reservoir_0, align_reservoir_1 };
 296 static unsigned align_reservoir_samples = 0; /* 0 .. 587 */
 297
 298
 299 int main(int argc, char *argv[])
 300 {
 301         int retval = 0;
 302
 303 #ifdef __EMX__
 304         _response(&argc, &argv);
 305         _wildcard(&argc, &argv);
 306 #endif
 307 #ifdef _WIN32
 308         if (get_utf8_argv(&argc, &argv) != 0) {
 309                 fprintf(stderr, "ERROR: failed to convert command line parameters to UTF-8\n");
 310                 return 1;
 311         }
 312 #endif
 313
 314         srand((unsigned)time(0));
 315         setlocale(LC_ALL, "");
 316         if(!init_options()) {
 317                 flac__utils_printf(stderr, 1, "ERROR: allocating memory\n");
 318                 retval = 1;
 319         }
 320         else {
 321                 if((retval = parse_options(argc, argv)) == 0)
 322                         retval = do_it();
 323         }
 324
 325         free_options();
 326
 327         return retval;
 328 }
 329
 330 int do_it(void)
 331 {
 332         int retval = 0;
 333
 334         if(option_values.show_version) {
 335                 show_version();
 336                 return 0;
 337         }
 338         else if(option_values.show_explain) {
 339                 show_explain();
 340                 return 0;
 341         }
 342         else if(option_values.show_help) {
 343                 show_help();
 344                 return 0;
 345         }
 346         else {
 347                 if(option_values.num_files == 0) {
 348                         if(flac__utils_verbosity_ >= 1)
 349                                 short_usage();
 350                         return 0;
 351                 }
 352
 353                 /*
 354                  * tweak options; validate the values
 355                  */
 356                 if(!option_values.mode_decode) {
 357                         if(0 != option_values.cue_specification)
 358                                 return usage_error("ERROR: --cue is not allowed in test mode\n");
 359                 }
 360                 else {
 361                         if(option_values.test_only) {
 362                                 if(0 != option_values.skip_specification)
 363                                         return usage_error("ERROR: --skip is not allowed in test mode\n");
 364                                 if(0 != option_values.until_specification)
 365                                         return usage_error("ERROR: --until is not allowed in test mode\n");
 366                                 if(0 != option_values.cue_specification)
 367                                         return usage_error("ERROR: --cue is not allowed in test mode\n");
 368                                 if(0 != option_values.analyze)
 369                                         return usage_error("ERROR: analysis mode (-a/--analyze) and test mode (-t/--test) cannot be used together\n");
 370                         }
 371                 }
 372
 373                 if(0 != option_values.cue_specification && (0 != option_values.skip_specification || 0 != option_values.until_specification))
 374                         return usage_error("ERROR: --cue may not be combined with --skip or --until\n");
 375
 376                 if(option_values.format_channels >= 0) {
 377                         if(option_values.format_channels == 0 || (unsigned)option_values.format_channels > FLAC__MAX_CHANNELS)
 378                                 return usage_error("ERROR: invalid number of channels '%u', must be > 0 and <= %u\n", option_values.format_channels, FLAC__MAX_CHANNELS);
 379                 }
 380                 if(option_values.format_bps >= 0) {
 381                         if(option_values.format_bps != 8 && option_values.format_bps != 16 && option_values.format_bps != 24)
 382                                 return usage_error("ERROR: invalid bits per sample '%u' (must be 8/16/24)\n", option_values.format_bps);
 383                 }
 384                 if(option_values.format_sample_rate >= 0) {
 385                         if(!FLAC__format_sample_rate_is_valid(option_values.format_sample_rate))
 386                                 return usage_error("ERROR: invalid sample rate '%u', must be > 0 and <= %u\n", option_values.format_sample_rate, FLAC__MAX_SAMPLE_RATE);
 387                 }
 388                 if((option_values.force_raw_format?1:0) + (option_values.force_aiff_format?1:0) + (option_values.force_rf64_format?1:0) + (option_values.force_wave64_format?1:0) > 1)
 389                         return usage_error("ERROR: only one of --force-raw-format/--force-aiff-format/--force-rf64-format/--force-wave64-format allowed\n");
 390                 if(option_values.mode_decode) {
 391                         if(!option_values.force_raw_format) {
 392                                 if(option_values.format_is_big_endian >= 0)
 393                                         return usage_error("ERROR: --endian only allowed with --force-raw-format\n");
 394                                 if(option_values.format_is_unsigned_samples >= 0)
 395                                         return usage_error("ERROR: --sign only allowed with --force-raw-format\n");
 396                         }
 397                         if(option_values.format_channels >= 0)
 398                                 return usage_error("ERROR: --channels not allowed with --decode\n");
 399                         if(option_values.format_bps >= 0)
 400                                 return usage_error("ERROR: --bps not allowed with --decode\n");
 401                         if(option_values.format_sample_rate >= 0)
 402                                 return usage_error("ERROR: --sample-rate not allowed with --decode\n");
 403                 }
 404
 405                 if(option_values.ignore_chunk_sizes) {
 406                         if(option_values.mode_decode)
 407                                 return usage_error("ERROR: --ignore-chunk-sizes only allowed for encoding\n");
 408                         if(0 != option_values.sector_align)
 409                                 return usage_error("ERROR: --ignore-chunk-sizes not allowed with --sector-align\n");
 410                         if(0 != option_values.until_specification)
 411                                 return usage_error("ERROR: --ignore-chunk-sizes not allowed with --until\n");
 412                         if(0 != option_values.cue_specification)
 413                                 return usage_error("ERROR: --ignore-chunk-sizes not allowed with --cue\n");
 414                         if(0 != option_values.cuesheet_filename)
 415                                 return usage_error("ERROR: --ignore-chunk-sizes not allowed with --cuesheet\n");
 416                 }
 417                 if(option_values.sector_align) {
 418                         if(option_values.mode_decode)
 419                                 return usage_error("ERROR: --sector-align only allowed for encoding\n");
 420                         if(0 != option_values.skip_specification)
 421                                 return usage_error("ERROR: --sector-align not allowed with --skip\n");
 422                         if(0 != option_values.until_specification)
 423                                 return usage_error("ERROR: --sector-align not allowed with --until\n");
 424                         if(0 != option_values.cue_specification)
 425                                 return usage_error("ERROR: --sector-align not allowed with --cue\n");
 426                         if(option_values.format_channels >= 0 && option_values.format_channels != 2)
 427                                 return usage_error("ERROR: --sector-align can only be done with stereo input\n");
 428                         if(option_values.format_bps >= 0 && option_values.format_bps != 16)
 429                                 return usage_error("ERROR: --sector-align can only be done with 16-bit samples\n");
 430                         if(option_values.format_sample_rate >= 0 && option_values.format_sample_rate != 44100)
 431                                 return usage_error("ERROR: --sector-align can only be done with a sample rate of 44100\n");
 432                 }
 433                 if(option_values.replay_gain) {
 434                         if(option_values.force_to_stdout)
 435                                 return usage_error("ERROR: --replay-gain not allowed with -c/--stdout\n");
 436                         if(option_values.mode_decode)
 437                                 return usage_error("ERROR: --replay-gain only allowed for encoding\n");
 438                         if(option_values.format_channels > 2)
 439                                 return usage_error("ERROR: --replay-gain can only be done with mono/stereo input\n");
 440                         if(option_values.format_sample_rate >= 0 && !grabbag__replaygain_is_valid_sample_frequency(option_values.format_sample_rate))
 441                                 return usage_error("ERROR: invalid sample rate used with --replay-gain\n");
 442                         /*
 443                          * We want to reserve padding space for the ReplayGain
 444                          * tags that we will set later, to avoid rewriting the
 445                          * whole file.
 446                          */
 447                         if(
 448                                 (option_values.padding >= 0 && option_values.padding < (int)GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED) ||
 449                                 (option_values.padding < 0 && FLAC_ENCODE__DEFAULT_PADDING < (int)GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED)
 450                         ) {
 451                                 flac__utils_printf(stderr, 1, "NOTE: --replay-gain may leave a small PADDING block even with --no-padding\n");
 452                                 option_values.padding = GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
 453                         }
 454                         else {
 455                                 option_values.padding += GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
 456                         }
 457                 }
 458                 if(option_values.num_files > 1 && option_values.cmdline_forced_outfilename) {
 459                         return usage_error("ERROR: -o/--output-name cannot be used with multiple files\n");
 460                 }
 461                 if(option_values.cmdline_forced_outfilename && option_values.output_prefix) {
 462                         return usage_error("ERROR: --output-prefix conflicts with -o/--output-name\n");
 463                 }
 464                 if(!option_values.mode_decode && 0 != option_values.cuesheet_filename && option_values.num_files > 1) {
 465                         return usage_error("ERROR: --cuesheet cannot be used when encoding multiple files\n");
 466                 }
 467                 if(option_values.keep_foreign_metadata) {
 468                         /* we're not going to try and support the re-creation of broken WAVE files */
 469                         if(option_values.ignore_chunk_sizes)
 470                                 return usage_error("ERROR: using --keep-foreign-metadata cannot be used with --ignore-chunk-sizes\n");
 471                         if(option_values.test_only)
 472                                 return usage_error("ERROR: --keep-foreign-metadata is not allowed in test mode\n");
 473                         if(option_values.analyze)
 474                                 return usage_error("ERROR: --keep-foreign-metadata is not allowed in analyis mode\n");
 475                         flac__utils_printf(stderr, 1, "NOTE: --keep-foreign-metadata is a new feature; make sure to test the output file before deleting the original.\n");
 476                 }
 477         }
 478
 479         flac__utils_printf(stderr, 2, "\n");
 480         flac__utils_printf(stderr, 2, "flac %s, Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007,2008,2009  Josh Coalson\n", FLAC__VERSION_STRING);
 481         flac__utils_printf(stderr, 2, "flac comes with ABSOLUTELY NO WARRANTY.  This is free software, and you are\n");
 482         flac__utils_printf(stderr, 2, "welcome to redistribute it under certain conditions.  Type `flac' for details.\n\n");
 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.ignore_chunk_sizes)
 506                         flac__utils_printf(stderr, 1, "INFO: Make sure you know what you're doing when using --ignore-chunk-sizes.\n      Improper use can cause flac to encode non-audio data as audio.\n");
 507
 508                 if(option_values.num_files == 0) {
 509                         retval = encode_file("-", first, true);
 510                 }
 511                 else {
 512                         unsigned i;
 513                         if(option_values.num_files > 1)
 514                                 option_values.cmdline_forced_outfilename = 0;
 515                         for(i = 0, retval = 0; i < option_values.num_files; i++) {
 516                                 if(0 == strcmp(option_values.filenames[i], "-") && !first)
 517                                         continue;
 518                                 retval |= encode_file(option_values.filenames[i], first, i == (option_values.num_files-1));
 519                                 first = false;
 520                         }
 521                         if(option_values.replay_gain && retval == 0) {
 522                                 float album_gain, album_peak;
 523                                 grabbag__replaygain_get_album(&album_gain, &album_peak);
 524                                 for(i = 0; i < option_values.num_files; i++) {
 525                                         const char *error, *outfilename = get_encoded_outfilename(option_values.filenames[i]);
 526                                         if(0 == outfilename) {
 527                                                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", option_values.filenames[i]);
 528                                                 return 1;
 529                                         }
 530                                         if(0 != (error = grabbag__replaygain_store_to_file_album(outfilename, album_gain, album_peak, option_values.preserve_modtime))) {
 531                                                 flac__utils_printf(stderr, 1, "%s: ERROR writing ReplayGain album tags (%s)\n", outfilename, error);
 532                                                 retval = 1;
 533                                         }
 534                                 }
 535                         }
 536                 }
 537         }
 538
 539         return retval;
 540 }
 541
 542 FLAC__bool init_options(void)
 543 {
 544         option_values.show_help = false;
 545         option_values.show_explain = false;
 546         option_values.mode_decode = false;
 547         option_values.verify = false;
 548         option_values.treat_warnings_as_errors = false;
 549         option_values.force_file_overwrite = false;
 550         option_values.continue_through_decode_errors = false;
 551         option_values.replaygain_synthesis_spec.apply = false;
 552         option_values.replaygain_synthesis_spec.use_album_gain = true;
 553         option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__HARD;
 554         option_values.replaygain_synthesis_spec.noise_shaping = NOISE_SHAPING_LOW;
 555         option_values.replaygain_synthesis_spec.preamp = 0.0;
 556         option_values.lax = false;
 557         option_values.test_only = false;
 558         option_values.analyze = false;
 559         option_values.use_ogg = false;
 560         option_values.has_serial_number = false;
 561         option_values.serial_number = 0;
 562         option_values.force_to_stdout = false;
 563         option_values.force_raw_format = false;
 564         option_values.force_aiff_format = false;
 565         option_values.force_rf64_format = false;
 566         option_values.force_wave64_format = false;
 567         option_values.delete_input = false;
 568         option_values.preserve_modtime = true;
 569         option_values.keep_foreign_metadata = false;
 570         option_values.replay_gain = false;
 571         option_values.ignore_chunk_sizes = false;
 572         option_values.sector_align = false;
 573         option_values.utf8_convert = true;
 574         option_values.cmdline_forced_outfilename = 0;
 575         option_values.output_prefix = 0;
 576         option_values.aopts.do_residual_text = false;
 577         option_values.aopts.do_residual_gnuplot = false;
 578         option_values.padding = -1;
 579         option_values.num_compression_settings = 1;
 580         option_values.compression_settings[0].type = CST_COMPRESSION_LEVEL;
 581         option_values.compression_settings[0].value.t_unsigned = 5;
 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 = (FLAC__off_t)(-1);
 591         option_values.requested_seek_points[0] = '\0';
 592         option_values.num_requested_seek_points = -1;
 593         option_values.cuesheet_filename = 0;
 594         option_values.cued_seekpoints = true;
 595         option_values.channel_map_none = false;
 596
 597         option_values.num_files = 0;
 598         option_values.filenames = 0;
 599
 600         if(0 == (option_values.vorbis_comment = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT)))
 601                 return false;
 602         option_values.num_pictures = 0;
 603
 604         option_values.debug.disable_constant_subframes = false;
 605         option_values.debug.disable_fixed_subframes = false;
 606         option_values.debug.disable_verbatim_subframes = false;
 607         option_values.debug.do_md5 = true;
 608
 609         return true;
 610 }
 611
 612 int parse_options(int argc, char *argv[])
 613 {
 614         int short_option;
 615         int option_index = 1;
 616         FLAC__bool had_error = false;
 617         const char *short_opts = "0123456789aA:b:cdefFhHl:mMo:pP:q:r:sS:tT:vVw";
 618
 619         while ((short_option = share__getopt_long(argc, argv, short_opts, long_options_, &option_index)) != -1) {
 620                 switch (short_option) {
 621                         case 0: /* long option with no equivalent short option */
 622                                 had_error |= (parse_option(short_option, long_options_[option_index].name, share__optarg) != 0);
 623                                 break;
 624                         case '?':
 625                         case ':':
 626                                 had_error = true;
 627                                 break;
 628                         default: /* short option */
 629                                 had_error |= (parse_option(short_option, 0, share__optarg) != 0);
 630                                 break;
 631                 }
 632         }
 633
 634         if(had_error) {
 635                 return 1;
 636         }
 637
 638         FLAC__ASSERT(share__optind <= argc);
 639
 640         option_values.num_files = argc - share__optind;
 641
 642         if(option_values.num_files > 0) {
 643                 unsigned i = 0;
 644                 if(0 == (option_values.filenames = malloc(sizeof(char*) * option_values.num_files)))
 645                         die("out of memory allocating space for file names list");
 646                 while(share__optind < argc)
 647                         option_values.filenames[i++] = local_strdup(argv[share__optind++]);
 648         }
 649
 650         return 0;
 651 }
 652
 653 int parse_option(int short_option, const char *long_option, const char *option_argument)
 654 {
 655         const char *violation;
 656
 657         if(short_option == 0) {
 658                 FLAC__ASSERT(0 != long_option);
 659                 if(0 == strcmp(long_option, "totally-silent")) {
 660                         flac__utils_verbosity_ = 0;
 661                 }
 662                 else if(0 == strcmp(long_option, "delete-input-file")) {
 663                         option_values.delete_input = true;
 664                 }
 665                 else if(0 == strcmp(long_option, "preserve-modtime")) {
 666                         option_values.preserve_modtime = true;
 667                 }
 668                 else if(0 == strcmp(long_option, "keep-foreign-metadata")) {
 669                         option_values.keep_foreign_metadata = true;
 670                 }
 671                 else if(0 == strcmp(long_option, "output-prefix")) {
 672                         FLAC__ASSERT(0 != option_argument);
 673                         option_values.output_prefix = option_argument;
 674                 }
 675                 else if(0 == strcmp(long_option, "skip")) {
 676                         FLAC__ASSERT(0 != option_argument);
 677                         option_values.skip_specification = option_argument;
 678                 }
 679                 else if(0 == strcmp(long_option, "until")) {
 680                         FLAC__ASSERT(0 != option_argument);
 681                         option_values.until_specification = option_argument;
 682                 }
 683                 else if(0 == strcmp(long_option, "input-size")) {
 684                         FLAC__ASSERT(0 != option_argument);
 685                         {
 686                                 char *end;
 687                                 FLAC__int64 ix;
 688                                 ix = strtoll(option_argument, &end, 10);
 689                                 if(0 == strlen(option_argument) || *end)
 690                                         return usage_error("ERROR: --%s must be a number\n", long_option);
 691                                 option_values.format_input_size = (FLAC__off_t)ix;
 692                                 if(option_values.format_input_size != ix) /* check if FLAC__off_t is smaller than long long */
 693                                         return usage_error("ERROR: --%s too large; this build of flac does not support filesizes over 2GB\n", long_option);
 694                                 if(option_values.format_input_size <= 0)
 695                                         return usage_error("ERROR: --%s must be > 0\n", long_option);
 696                         }
 697                 }
 698                 else if(0 == strcmp(long_option, "cue")) {
 699                         FLAC__ASSERT(0 != option_argument);
 700                         option_values.cue_specification = option_argument;
 701                 }
 702                 else if(0 == strcmp(long_option, "apply-replaygain-which-is-not-lossless")) {
 703                         option_values.replaygain_synthesis_spec.apply = true;
 704                         if (0 != option_argument) {
 705                                 char *p;
 706                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__NONE;
 707                                 option_values.replaygain_synthesis_spec.noise_shaping = NOISE_SHAPING_NONE;
 708                                 option_values.replaygain_synthesis_spec.preamp = strtod(option_argument, &p);
 709                                 for ( ; *p; p++) {
 710                                         if (*p == 'a')
 711                                                 option_values.replaygain_synthesis_spec.use_album_gain = true;
 712                                         else if (*p == 't')
 713                                                 option_values.replaygain_synthesis_spec.use_album_gain = false;
 714                                         else if (*p == 'l')
 715                                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__PEAK;
 716                                         else if (*p == 'L')
 717                                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__HARD;
 718                                         else if (*p == 'n' && p[1] >= '0' && p[1] <= '3') {
 719                                                 option_values.replaygain_synthesis_spec.noise_shaping = p[1] - '0';
 720                                                 p++;
 721                                         }
 722                                         else
 723                                                 return usage_error("ERROR: bad specification string \"%s\" for --%s\n", option_argument, long_option);
 724                                 }
 725                         }
 726                 }
 727                 else if(0 == strcmp(long_option, "channel-map")) {
 728                         if (0 == option_argument || strcmp(option_argument, "none"))
 729                                 return usage_error("ERROR: only --channel-map=none currently supported\n");
 730                         option_values.channel_map_none = true;
 731                 }
 732                 else if(0 == strcmp(long_option, "cuesheet")) {
 733                         FLAC__ASSERT(0 != option_argument);
 734                         option_values.cuesheet_filename = option_argument;
 735                 }
 736                 else if(0 == strcmp(long_option, "picture")) {
 737                         const unsigned max_pictures = sizeof(option_values.pictures)/sizeof(option_values.pictures[0]);
 738                         FLAC__ASSERT(0 != option_argument);
 739                         if(option_values.num_pictures >= max_pictures)
 740                                 return usage_error("ERROR: too many --picture arguments, only %u allowed\n", max_pictures);
 741                         if(0 == (option_values.pictures[option_values.num_pictures] = grabbag__picture_parse_specification(option_argument, &violation)))
 742                                 return usage_error("ERROR: (--picture) %s\n", violation);
 743                         option_values.num_pictures++;
 744                 }
 745                 else if(0 == strcmp(long_option, "tag-from-file")) {
 746                         FLAC__ASSERT(0 != option_argument);
 747                         if(!flac__vorbiscomment_add(option_values.vorbis_comment, option_argument, /*value_from_file=*/true, /*raw=*/!option_values.utf8_convert, &violation))
 748                                 return usage_error("ERROR: (--tag-from-file) %s\n", violation);
 749                 }
 750                 else if(0 == strcmp(long_option, "no-cued-seekpoints")) {
 751                         option_values.cued_seekpoints = false;
 752                 }
 753                 else if(0 == strcmp(long_option, "force-raw-format")) {
 754                         option_values.force_raw_format = true;
 755                 }
 756                 else if(0 == strcmp(long_option, "force-aiff-format")) {
 757                         option_values.force_aiff_format = true;
 758                 }
 759                 else if(0 == strcmp(long_option, "force-rf64-format")) {
 760                         option_values.force_rf64_format = true;
 761                 }
 762                 else if(0 == strcmp(long_option, "force-wave64-format")) {
 763                         option_values.force_wave64_format = true;
 764                 }
 765                 else if(0 == strcmp(long_option, "lax")) {
 766                         option_values.lax = true;
 767                 }
 768                 else if(0 == strcmp(long_option, "replay-gain")) {
 769                         option_values.replay_gain = true;
 770                 }
 771                 else if(0 == strcmp(long_option, "ignore-chunk-sizes")) {
 772                         option_values.ignore_chunk_sizes = true;
 773                 }
 774                 else if(0 == strcmp(long_option, "sector-align")) {
 775                         flac__utils_printf(stderr, 1, "WARNING: --sector-align is DEPRECATED and may not exist in future versions of flac.\n");
 776                         flac__utils_printf(stderr, 1, "         shntool provides similar functionality\n");
 777                         option_values.sector_align = true;
 778                 }
 779 #if FLAC__HAS_OGG
 780                 else if(0 == strcmp(long_option, "ogg")) {
 781                         option_values.use_ogg = true;
 782                 }
 783                 else if(0 == strcmp(long_option, "serial-number")) {
 784                         option_values.has_serial_number = true;
 785                         option_values.serial_number = atol(option_argument);
 786                 }
 787 #endif
 788                 else if(0 == strcmp(long_option, "endian")) {
 789                         FLAC__ASSERT(0 != option_argument);
 790                         if(0 == strncmp(option_argument, "big", strlen(option_argument)))
 791                                 option_values.format_is_big_endian = true;
 792                         else if(0 == strncmp(option_argument, "little", strlen(option_argument)))
 793                                 option_values.format_is_big_endian = false;
 794                         else
 795                                 return usage_error("ERROR: argument to --endian must be \"big\" or \"little\"\n");
 796                 }
 797                 else if(0 == strcmp(long_option, "channels")) {
 798                         FLAC__ASSERT(0 != option_argument);
 799                         option_values.format_channels = atoi(option_argument);
 800                 }
 801                 else if(0 == strcmp(long_option, "bps")) {
 802                         FLAC__ASSERT(0 != option_argument);
 803                         option_values.format_bps = atoi(option_argument);
 804                 }
 805                 else if(0 == strcmp(long_option, "sample-rate")) {
 806                         FLAC__ASSERT(0 != option_argument);
 807                         option_values.format_sample_rate = atoi(option_argument);
 808                 }
 809                 else if(0 == strcmp(long_option, "sign")) {
 810                         FLAC__ASSERT(0 != option_argument);
 811                         if(0 == strncmp(option_argument, "signed", strlen(option_argument)))
 812                                 option_values.format_is_unsigned_samples = false;
 813                         else if(0 == strncmp(option_argument, "unsigned", strlen(option_argument)))
 814                                 option_values.format_is_unsigned_samples = true;
 815                         else
 816                                 return usage_error("ERROR: argument to --sign must be \"signed\" or \"unsigned\"\n");
 817                 }
 818                 else if(0 == strcmp(long_option, "residual-gnuplot")) {
 819                         option_values.aopts.do_residual_gnuplot = true;
 820                 }
 821                 else if(0 == strcmp(long_option, "residual-text")) {
 822                         option_values.aopts.do_residual_text = true;
 823                 }
 824                 /*
 825                  * negatives
 826                  */
 827                 else if(0 == strcmp(long_option, "no-preserve-modtime")) {
 828                         option_values.preserve_modtime = false;
 829                 }
 830                 else if(0 == strcmp(long_option, "no-decode-through-errors")) {
 831                         option_values.continue_through_decode_errors = false;
 832                 }
 833                 else if(0 == strcmp(long_option, "no-silent")) {
 834                         flac__utils_verbosity_ = 2;
 835                 }
 836                 else if(0 == strcmp(long_option, "no-force")) {
 837                         option_values.force_file_overwrite = false;
 838                 }
 839                 else if(0 == strcmp(long_option, "no-seektable")) {
 840                         option_values.num_requested_seek_points = 0;
 841                         option_values.requested_seek_points[0] = '\0';
 842                 }
 843                 else if(0 == strcmp(long_option, "no-delete-input-file")) {
 844                         option_values.delete_input = false;
 845                 }
 846                 else if(0 == strcmp(long_option, "no-keep-foreign-metadata")) {
 847                         option_values.keep_foreign_metadata = false;
 848                 }
 849                 else if(0 == strcmp(long_option, "no-replay-gain")) {
 850                         option_values.replay_gain = false;
 851                 }
 852                 else if(0 == strcmp(long_option, "no-ignore-chunk-sizes")) {
 853                         option_values.ignore_chunk_sizes = false;
 854                 }
 855                 else if(0 == strcmp(long_option, "no-sector-align")) {
 856                         option_values.sector_align = false;
 857                 }
 858                 else if(0 == strcmp(long_option, "no-utf8-convert")) {
 859                         option_values.utf8_convert = false;
 860                 }
 861                 else if(0 == strcmp(long_option, "no-lax")) {
 862                         option_values.lax = false;
 863                 }
 864 #if FLAC__HAS_OGG
 865                 else if(0 == strcmp(long_option, "no-ogg")) {
 866                         option_values.use_ogg = false;
 867                 }
 868 #endif
 869                 else if(0 == strcmp(long_option, "no-exhaustive-model-search")) {
 870                         add_compression_setting_bool(CST_DO_EXHAUSTIVE_MODEL_SEARCH, false);
 871                 }
 872                 else if(0 == strcmp(long_option, "no-mid-side")) {
 873                         add_compression_setting_bool(CST_DO_MID_SIDE, false);
 874                         add_compression_setting_bool(CST_LOOSE_MID_SIDE, false);
 875                 }
 876                 else if(0 == strcmp(long_option, "no-adaptive-mid-side")) {
 877                         add_compression_setting_bool(CST_DO_MID_SIDE, false);
 878                         add_compression_setting_bool(CST_LOOSE_MID_SIDE, false);
 879                 }
 880                 else if(0 == strcmp(long_option, "no-qlp-coeff-prec-search")) {
 881                         add_compression_setting_bool(CST_DO_QLP_COEFF_PREC_SEARCH, false);
 882                 }
 883                 else if(0 == strcmp(long_option, "no-padding")) {
 884                         option_values.padding = 0;
 885                 }
 886                 else if(0 == strcmp(long_option, "no-verify")) {
 887                         option_values.verify = false;
 888                 }
 889                 else if(0 == strcmp(long_option, "no-warnings-as-errors")) {
 890                         option_values.treat_warnings_as_errors = false;
 891                 }
 892                 else if(0 == strcmp(long_option, "no-residual-gnuplot")) {
 893                         option_values.aopts.do_residual_gnuplot = false;
 894                 }
 895                 else if(0 == strcmp(long_option, "no-residual-text")) {
 896                         option_values.aopts.do_residual_text = false;
 897                 }
 898                 else if(0 == strcmp(long_option, "disable-constant-subframes")) {
 899                         option_values.debug.disable_constant_subframes = true;
 900                 }
 901                 else if(0 == strcmp(long_option, "disable-fixed-subframes")) {
 902                         option_values.debug.disable_fixed_subframes = true;
 903                 }
 904                 else if(0 == strcmp(long_option, "disable-verbatim-subframes")) {
 905                         option_values.debug.disable_verbatim_subframes = true;
 906                 }
 907                 else if(0 == strcmp(long_option, "no-md5-sum")) {
 908                         option_values.debug.do_md5 = false;
 909                 }
 910         }
 911         else {
 912                 switch(short_option) {
 913                         case 'h':
 914                                 option_values.show_help = true;
 915                                 break;
 916                         case 'H':
 917                                 option_values.show_explain = true;
 918                                 break;
 919                         case 'v':
 920                                 option_values.show_version = true;
 921                                 break;
 922                         case 'd':
 923                                 option_values.mode_decode = true;
 924                                 break;
 925                         case 'a':
 926                                 option_values.mode_decode = true;
 927                                 option_values.analyze = true;
 928                                 break;
 929                         case 't':
 930                                 option_values.mode_decode = true;
 931                                 option_values.test_only = true;
 932                                 break;
 933                         case 'c':
 934                                 option_values.force_to_stdout = true;
 935                                 break;
 936                         case 's':
 937                                 flac__utils_verbosity_ = 1;
 938                                 break;
 939                         case 'f':
 940                                 option_values.force_file_overwrite = true;
 941                                 break;
 942                         case 'o':
 943                                 FLAC__ASSERT(0 != option_argument);
 944                                 option_values.cmdline_forced_outfilename = option_argument;
 945                                 break;
 946                         case 'F':
 947                                 option_values.continue_through_decode_errors = true;
 948                                 break;
 949                         case 'T':
 950                                 FLAC__ASSERT(0 != option_argument);
 951                                 if(!flac__vorbiscomment_add(option_values.vorbis_comment, option_argument, /*value_from_file=*/false, /*raw=*/!option_values.utf8_convert, &violation))
 952                                         return usage_error("ERROR: (-T/--tag) %s\n", violation);
 953                                 break;
 954                         case '0':
 955                         case '1':
 956                         case '2':
 957                         case '3':
 958                         case '4':
 959                         case '5':
 960                         case '6':
 961                         case '7':
 962                         case '8':
 963                                 add_compression_setting_unsigned(CST_COMPRESSION_LEVEL, short_option-'0');
 964                                 break;
 965                         case '9':
 966                                 return usage_error("ERROR: compression level '9' is reserved\n");
 967                         case 'V':
 968                                 option_values.verify = true;
 969                                 break;
 970                         case 'w':
 971                                 option_values.treat_warnings_as_errors = true;
 972                                 break;
 973                         case 'S':
 974                                 FLAC__ASSERT(0 != option_argument);
 975                                 if(0 == strcmp(option_argument, "-")) {
 976                                         option_values.num_requested_seek_points = 0;
 977                                         option_values.requested_seek_points[0] = '\0';
 978                                 }
 979                                 else {
 980                                         if(option_values.num_requested_seek_points < 0)
 981                                                 option_values.num_requested_seek_points = 0;
 982                                         option_values.num_requested_seek_points++;
 983                                         if(strlen(option_values.requested_seek_points)+strlen(option_argument)+2 >= sizeof(option_values.requested_seek_points)) {
 984                                                 return usage_error("ERROR: too many seekpoints requested\n");
 985                                         }
 986                                         else {
 987                                                 size_t len = strlen(option_values.requested_seek_points);
 988                                                 flac_snprintf(option_values.requested_seek_points+len, sizeof(option_values.requested_seek_points) - len, "%s;", option_argument);
 989                                         }
 990                                 }
 991                                 break;
 992                         case 'P':
 993                                 FLAC__ASSERT(0 != option_argument);
 994                                 option_values.padding = atoi(option_argument);
 995                                 if(option_values.padding < 0)
 996                                         return usage_error("ERROR: argument to -%c must be >= 0; for no padding use -%c-\n", short_option, short_option);
 997                                 break;
 998                         case 'b':
 999                                 {
1000                                         unsigned i ;
1001                                         FLAC__ASSERT(0 != option_argument);
1002                                         i = atoi(option_argument);
1003                                         if((i < (int)FLAC__MIN_BLOCK_SIZE || i > (int)FLAC__MAX_BLOCK_SIZE))
1004                                                 return usage_error("ERROR: invalid blocksize (-%c) '%d', must be >= %u and <= %u\n", short_option, i, FLAC__MIN_BLOCK_SIZE, FLAC__MAX_BLOCK_SIZE);
1005                                         add_compression_setting_unsigned(CST_BLOCKSIZE, (unsigned)i);
1006                                 }
1007                                 break;
1008                         case 'e':
1009                                 add_compression_setting_bool(CST_DO_EXHAUSTIVE_MODEL_SEARCH, true);
1010                                 break;
1011                         case 'E':
1012                                 add_compression_setting_bool(CST_DO_ESCAPE_CODING, true);
1013                                 break;
1014                         case 'l':
1015                                 {
1016                                         unsigned i ;
1017                                         FLAC__ASSERT(0 != option_argument);
1018                                         i = atoi(option_argument);
1019                                         if(i > FLAC__MAX_LPC_ORDER)
1020                                                 return usage_error("ERROR: invalid LPC order (-%c) '%d', must be >= %u and <= %u\n", short_option, i, 0, FLAC__MAX_LPC_ORDER);
1021                                         add_compression_setting_unsigned(CST_MAX_LPC_ORDER, i);
1022                                 }
1023                                 break;
1024                         case 'A':
1025                                 FLAC__ASSERT(0 != option_argument);
1026                                 add_compression_setting_string(CST_APODIZATION, option_argument);
1027                                 break;
1028                         case 'm':
1029                                 add_compression_setting_bool(CST_DO_MID_SIDE, true);
1030                                 add_compression_setting_bool(CST_LOOSE_MID_SIDE, false);
1031                                 break;
1032                         case 'M':
1033                                 add_compression_setting_bool(CST_DO_MID_SIDE, true);
1034                                 add_compression_setting_bool(CST_LOOSE_MID_SIDE, true);
1035                                 break;
1036                         case 'p':
1037                                 add_compression_setting_bool(CST_DO_QLP_COEFF_PREC_SEARCH, true);
1038                                 break;
1039                         case 'q':
1040                                 {
1041                                         unsigned i ;
1042                                         FLAC__ASSERT(0 != option_argument);
1043                                         i = atoi(option_argument);
1044                                         if((i > 0 && (i < FLAC__MIN_QLP_COEFF_PRECISION || i > FLAC__MAX_QLP_COEFF_PRECISION)))
1045                                                 return usage_error("ERROR: invalid value '%d' for qlp coeff precision (-%c), must be 0 or between %u and %u, inclusive\n", i, short_option, FLAC__MIN_QLP_COEFF_PRECISION, FLAC__MAX_QLP_COEFF_PRECISION);
1046                                         add_compression_setting_unsigned(CST_QLP_COEFF_PRECISION, i);
1047                                 }
1048                                 break;
1049                         case 'r':
1050                                 {
1051                                         unsigned i;
1052                                         char * p;
1053                                         FLAC__ASSERT(0 != option_argument);
1054                                         p = strchr(option_argument, ',');
1055                                         if(0 == p) {
1056                                                 add_compression_setting_unsigned(CST_MIN_RESIDUAL_PARTITION_ORDER, 0);
1057                                                 i = atoi(option_argument);
1058                                                 if(i > FLAC__MAX_RICE_PARTITION_ORDER)
1059                                                         return usage_error("ERROR: invalid value '%d' for residual partition order (-%c), must be between 0 and %u, inclusive\n", i, short_option, FLAC__MAX_RICE_PARTITION_ORDER);
1060                                                 add_compression_setting_unsigned(CST_MAX_RESIDUAL_PARTITION_ORDER, i);
1061                                         }
1062                                         else {
1063                                                 i = atoi(option_argument);
1064                                                 if(i > FLAC__MAX_RICE_PARTITION_ORDER)
1065                                                         return usage_error("ERROR: invalid value '%d' for min residual partition order (-%c), must be between 0 and %u, inclusive\n", i, short_option, FLAC__MAX_RICE_PARTITION_ORDER);
1066                                                 add_compression_setting_unsigned(CST_MIN_RESIDUAL_PARTITION_ORDER, i);
1067                                                 i = atoi(++p);
1068                                                 if(i > FLAC__MAX_RICE_PARTITION_ORDER)
1069                                                         return usage_error("ERROR: invalid value '%d' for max residual partition order (-%c), must be between 0 and %u, inclusive\n", i, short_option, FLAC__MAX_RICE_PARTITION_ORDER);
1070                                                 add_compression_setting_unsigned(CST_MAX_RESIDUAL_PARTITION_ORDER, i);
1071                                         }
1072                                 }
1073                                 break;
1074                         case 'R':
1075                                 {
1076                                         unsigned i;
1077                                         i = atoi(option_argument);
1078                                         add_compression_setting_unsigned(CST_RICE_PARAMETER_SEARCH_DIST, i);
1079                                 }
1080                                 break;
1081                         default:
1082                                 FLAC__ASSERT(0);
1083                 }
1084         }
1085
1086         return 0;
1087 }
1088
1089 void free_options(void)
1090 {
1091         unsigned i;
1092         if(0 != option_values.filenames) {
1093                 for(i = 0; i < option_values.num_files; i++) {
1094                         if(0 != option_values.filenames[i])
1095                                 free(option_values.filenames[i]);
1096                 }
1097                 free(option_values.filenames);
1098         }
1099         if(0 != option_values.vorbis_comment)
1100                 FLAC__metadata_object_delete(option_values.vorbis_comment);
1101         for(i = 0; i < option_values.num_pictures; i++)
1102                 FLAC__metadata_object_delete(option_values.pictures[i]);
1103 }
1104
1105 void add_compression_setting_bool(compression_setting_type_t type, FLAC__bool value)
1106 {
1107         if(option_values.num_compression_settings >= sizeof(option_values.compression_settings)/sizeof(option_values.compression_settings[0]))
1108                 die("too many compression settings");
1109         option_values.compression_settings[option_values.num_compression_settings].type = type;
1110         option_values.compression_settings[option_values.num_compression_settings].value.t_bool = value;
1111         option_values.num_compression_settings++;
1112 }
1113
1114 void add_compression_setting_string(compression_setting_type_t type, const char *value)
1115 {
1116         if(option_values.num_compression_settings >= sizeof(option_values.compression_settings)/sizeof(option_values.compression_settings[0]))
1117                 die("too many compression settings");
1118         option_values.compression_settings[option_values.num_compression_settings].type = type;
1119         option_values.compression_settings[option_values.num_compression_settings].value.t_string = value;
1120         option_values.num_compression_settings++;
1121 }
1122
1123 void add_compression_setting_unsigned(compression_setting_type_t type, unsigned value)
1124 {
1125         if(option_values.num_compression_settings >= sizeof(option_values.compression_settings)/sizeof(option_values.compression_settings[0]))
1126                 die("too many compression settings");
1127         option_values.compression_settings[option_values.num_compression_settings].type = type;
1128         option_values.compression_settings[option_values.num_compression_settings].value.t_unsigned = value;
1129         option_values.num_compression_settings++;
1130 }
1131
1132 int usage_error(const char *message, ...)
1133 {
1134         if(flac__utils_verbosity_ >= 1) {
1135                 va_list args;
1136
1137                 FLAC__ASSERT(0 != message);
1138
1139                 va_start(args, message);
1140
1141                 (void) vfprintf(stderr, message, args);
1142
1143                 va_end(args);
1144
1145                 printf("Type \"flac\" for a usage summary or \"flac --help\" for all options\n");
1146         }
1147
1148         return 1;
1149 }
1150
1151 void show_version(void)
1152 {
1153         printf("flac %s\n", FLAC__VERSION_STRING);
1154 }
1155
1156 static void usage_header(void)
1157 {
1158         printf("===============================================================================\n");
1159         printf("flac - Command-line FLAC encoder/decoder version %s\n", FLAC__VERSION_STRING);
1160         printf("Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007,2008,2009  Josh Coalson\n");
1161         printf("\n");
1162         printf("This program is free software; you can redistribute it and/or\n");
1163         printf("modify it under the terms of the GNU General Public License\n");
1164         printf("as published by the Free Software Foundation; either version 2\n");
1165         printf("of the License, or (at your option) any later version.\n");
1166         printf("\n");
1167         printf("This program is distributed in the hope that it will be useful,\n");
1168         printf("but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
1169         printf("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n");
1170         printf("GNU General Public License for more details.\n");
1171         printf("\n");
1172         printf("You should have received a copy of the GNU General Public License along\n");
1173         printf("with this program; if not, write to the Free Software Foundation, Inc.,\n");
1174         printf("51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\n");
1175         printf("===============================================================================\n");
1176 }
1177
1178 static void usage_summary(void)
1179 {
1180         printf("Usage:\n");
1181         printf("\n");
1182         printf(" Encoding: flac [<general-options>] [<encoding/format-options>] [INPUTFILE [...]]\n");
1183         printf(" Decoding: flac -d [<general-options>] [<format-options>] [FLACFILE [...]]\n");
1184         printf("  Testing: flac -t [<general-options>] [FLACFILE [...]]\n");
1185         printf("Analyzing: flac -a [<general-options>] [<analysis-options>] [FLACFILE [...]]\n");
1186         printf("\n");
1187         printf("Be sure to read the list of known bugs at:\n");
1188         printf("http://flac.sourceforge.net/documentation_bugs.html\n");
1189         printf("\n");
1190 }
1191
1192 void short_usage(void)
1193 {
1194         usage_header();
1195         printf("\n");
1196         printf("This is the short help; for all options use 'flac --help'; for even more\n");
1197         printf("instructions use 'flac --explain'\n");
1198         printf("\n");
1199         printf("Be sure to read the list of known bugs at:\n");
1200         printf("http://flac.sourceforge.net/documentation_bugs.html\n");
1201         printf("\n");
1202         printf("To encode:\n");
1203         printf("  flac [-#] [INPUTFILE [...]]\n");
1204         printf("\n");
1205         printf("  -# is -0 (fastest compression) to -8 (highest compression); -5 is the default\n");
1206         printf("\n");
1207         printf("To decode:\n");
1208         printf("  flac -d [INPUTFILE [...]]\n");
1209         printf("\n");
1210         printf("To test:\n");
1211         printf("  flac -t [INPUTFILE [...]]\n");
1212 }
1213
1214 void show_help(void)
1215 {
1216         usage_header();
1217         usage_summary();
1218         printf("general options:\n");
1219         printf("  -v, --version                Show the flac version number\n");
1220         printf("  -h, --help                   Show this screen\n");
1221         printf("  -H, --explain                Show detailed explanation of usage and options\n");
1222         printf("  -d, --decode                 Decode (the default behavior is to encode)\n");
1223         printf("  -t, --test                   Same as -d except no decoded file is written\n");
1224         printf("  -a, --analyze                Same as -d except an analysis file is written\n");
1225         printf("  -c, --stdout                 Write output to stdout\n");
1226         printf("  -s, --silent                 Do not write runtime encode/decode statistics\n");
1227         printf("      --totally-silent         Do not print anything, including errors\n");
1228         printf("      --no-utf8-convert        Do not convert tags from local charset to UTF-8\n");
1229         printf("  -w, --warnings-as-errors     Treat all warnings as errors\n");
1230         printf("  -f, --force                  Force overwriting of output files\n");
1231         printf("  -o, --output-name=FILENAME   Force the output file name\n");
1232         printf("      --output-prefix=STRING   Prepend STRING to output names\n");
1233         printf("      --delete-input-file      Deletes after a successful encode/decode\n");
1234         printf("      --preserve-modtime       Output files keep timestamp of input (default)\n");
1235         printf("      --keep-foreign-metadata  Save/restore WAVE or AIFF non-audio chunks\n");
1236         printf("      --skip={#|mm:ss.ss}      Skip the given initial samples for each input\n");
1237         printf("      --until={#|[+|-]mm:ss.ss}  Stop at the given sample for each input file\n");
1238 #if FLAC__HAS_OGG
1239         printf("      --ogg                    Use Ogg as transport layer\n");
1240         printf("      --serial-number          Serial number to use for the FLAC stream\n");
1241 #endif
1242         printf("analysis options:\n");
1243         printf("      --residual-text          Include residual signal in text output\n");
1244         printf("      --residual-gnuplot       Generate gnuplot files of residual distribution\n");
1245         printf("decoding options:\n");
1246         printf("  -F, --decode-through-errors  Continue decoding through stream errors\n");
1247         printf("      --cue=[#.#][-[#.#]]      Set the beginning and ending cuepoints to decode\n");
1248         printf("encoding options:\n");
1249         printf("  -V, --verify                 Verify a correct encoding\n");
1250         printf("      --lax                    Allow encoder to generate non-Subset files\n");
1251         printf("      --ignore-chunk-sizes     Ignore data chunk sizes in WAVE/AIFF files\n");
1252         printf("      --sector-align (DEPRECATED) Align multiple files on sector boundaries\n");
1253         printf("      --replay-gain            Calculate ReplayGain & store in FLAC tags\n");
1254         printf("      --cuesheet=FILENAME      Import cuesheet and store in CUESHEET block\n");
1255         printf("      --picture=SPECIFICATION  Import picture and store in PICTURE block\n");
1256         printf("  -T, --tag=FIELD=VALUE        Add a FLAC tag; may appear multiple times\n");
1257         printf("      --tag-from-file=FIELD=FILENAME   Like --tag but gets value from file\n");
1258         printf("  -S, --seekpoint={#|X|#x|#s}  Add seek point(s)\n");
1259         printf("  -P, --padding=#              Write a PADDING block of length #\n");
1260         printf("  -0, --compression-level-0, --fast  Synonymous with -l 0 -b 1152 -r 3\n");
1261         printf("  -1, --compression-level-1          Synonymous with -l 0 -b 1152 -M -r 3\n");
1262         printf("  -2, --compression-level-2          Synonymous with -l 0 -b 1152 -m -r 3\n");
1263         printf("  -3, --compression-level-3          Synonymous with -l 6 -b 4096 -r 4\n");
1264         printf("  -4, --compression-level-4          Synonymous with -l 8 -b 4096 -M -r 4\n");
1265         printf("  -5, --compression-level-5          Synonymous with -l 8 -b 4096 -m -r 5\n");
1266         printf("  -6, --compression-level-6          Synonymous with -l 8 -b 4096 -m -r 6\n");
1267         printf("  -7, --compression-level-7          Synonymous with -l 8 -b 4096 -m -e -r 6\n");
1268         printf("  -8, --compression-level-8, --best  Synonymous with -l 12 -b 4096 -m -e -r 6\n");
1269         printf("  -b, --blocksize=#                  Specify blocksize in samples\n");
1270         printf("  -m, --mid-side                     Try mid-side coding for each frame\n");
1271         printf("  -M, --adaptive-mid-side            Adaptive mid-side coding for all frames\n");
1272         printf("  -e, --exhaustive-model-search      Do exhaustive model search (expensive!)\n");
1273         printf("  -A, --apodization=\"function\"       Window audio data with given the function\n");
1274         printf("  -l, --max-lpc-order=#              Max LPC order; 0 => only fixed predictors\n");
1275         printf("  -p, --qlp-coeff-precision-search   Exhaustively search LP coeff quantization\n");
1276         printf("  -q, --qlp-coeff-precision=#        Specify precision in bits\n");
1277         printf("  -r, --rice-partition-order=[#,]#   Set [min,]max residual partition order\n");
1278         printf("format options:\n");
1279         printf("      --endian={big|little}    Set byte order for samples\n");
1280         printf("      --channels=#             Number of channels\n");
1281         printf("      --bps=#                  Number of bits per sample\n");
1282         printf("      --sample-rate=#          Sample rate in Hz\n");
1283         printf("      --sign={signed|unsigned} Sign of samples\n");
1284         printf("      --input-size=#           Size of the raw input in bytes\n");
1285         printf("      --force-raw-format       Treat input or output as raw samples\n");
1286         printf("      --force-aiff-format      Force decoding to AIFF format\n");
1287         printf("      --force-rf64-format      Force decoding to RF64 format\n");
1288         printf("      --force-wave64-format    Force decoding to Wave64 format\n");
1289         printf("negative options:\n");
1290         printf("      --no-adaptive-mid-side\n");
1291         printf("      --no-cued-seekpoints\n");
1292         printf("      --no-decode-through-errors\n");
1293         printf("      --no-delete-input-file\n");
1294         printf("      --no-preserve-modtime\n");
1295         printf("      --no-keep-foreign-metadata\n");
1296         printf("      --no-exhaustive-model-search\n");
1297         printf("      --no-lax\n");
1298         printf("      --no-mid-side\n");
1299 #if FLAC__HAS_OGG
1300         printf("      --no-ogg\n");
1301 #endif
1302         printf("      --no-padding\n");
1303         printf("      --no-qlp-coeff-prec-search\n");
1304         printf("      --no-replay-gain\n");
1305         printf("      --no-residual-gnuplot\n");
1306         printf("      --no-residual-text\n");
1307         printf("      --no-ignore-chunk-sizes\n");
1308         printf("      --no-sector-align\n");
1309         printf("      --no-seektable\n");
1310         printf("      --no-silent\n");
1311         printf("      --no-force\n");
1312         printf("      --no-verify\n");
1313         printf("      --no-warnings-as-errors\n");
1314 }
1315
1316 void show_explain(void)
1317 {
1318         usage_header();
1319         usage_summary();
1320         printf("For encoding:\n");
1321         printf("  The input file(s) may be a PCM WAVE or RF64 file, AIFF (or uncompressed\n");
1322         printf("  AIFF-C) file, or raw samples.\n");
1323         printf("  The output file(s) will be in native FLAC or Ogg FLAC format\n");
1324         printf("For decoding, the reverse is true.\n");
1325         printf("\n");
1326         printf("A single INPUTFILE may be - for stdin.  No INPUTFILE implies stdin.  Use of\n");
1327         printf("stdin implies -c (write to stdout).  Normally you should use:\n");
1328         printf("   flac [options] -o outfilename  or  flac -d [options] -o outfilename\n");
1329         printf("instead of:\n");
1330         printf("   flac [options] > outfilename   or  flac -d [options] > outfilename\n");
1331         printf("since the former allows flac to seek backwards to write the STREAMINFO or\n");
1332         printf("WAVE/AIFF header contents when necessary.\n");
1333         printf("\n");
1334         printf("flac checks for the presence of a AIFF/WAVE header to decide whether or not to\n");
1335         printf("treat an input file as AIFF/WAVE format or raw samples.  If any input file is\n");
1336         printf("raw you must specify the format options {-fb|fl} -fc -fp and -fs, which will\n");
1337         printf("apply to all raw files.  You can force AIFF/WAVE files to be treated as raw\n");
1338         printf("files using -fr.\n");
1339         printf("\n");
1340         printf("general options:\n");
1341         printf("  -v, --version                Show the flac version number\n");
1342         printf("  -h, --help                   Show basic usage a list of all options\n");
1343         printf("  -H, --explain                Show this screen\n");
1344         printf("  -d, --decode                 Decode (the default behavior is to encode)\n");
1345         printf("  -t, --test                   Same as -d except no decoded file is written\n");
1346         printf("  -a, --analyze                Same as -d except an analysis file is written\n");
1347         printf("  -c, --stdout                 Write output to stdout\n");
1348         printf("  -s, --silent                 Do not write runtime encode/decode statistics\n");
1349         printf("      --totally-silent         Do not print anything of any kind, including\n");
1350         printf("                               warnings or errors.  The exit code will be the\n");
1351         printf("                               only way to determine successful completion.\n");
1352         printf("      --no-utf8-convert        Do not convert tags from local charset to UTF-8.\n");
1353         printf("                               This is useful for scripts, and setting tags in\n");
1354         printf("                               situations where the locale is wrong.  This\n");
1355         printf("                               option must appear before any tag options!\n");
1356         printf("  -w, --warnings-as-errors     Treat all warnings as errors\n");
1357         printf("  -f, --force                  Force overwriting of output files\n");
1358         printf("  -o, --output-name=FILENAME   Force the output file name; usually flac just\n");
1359         printf("                               changes the extension.  May only be used when\n");
1360         printf("                               encoding a single file.  May not be used in\n");
1361         printf("                               conjunction with --output-prefix.\n");
1362         printf("      --output-prefix=STRING   Prefix each output file name with the given\n");
1363         printf("                               STRING.  This can be useful for encoding or\n");
1364         printf("                               decoding files to a different directory.  Make\n");
1365         printf("                               sure if your STRING is a path name that it ends\n");
1366         printf("                               with a '/' slash.\n");
1367         printf("      --delete-input-file      Automatically delete the input file after a\n");
1368         printf("                               successful encode or decode.  If there was an\n");
1369         printf("                               error (including a verify error) the input file\n");
1370         printf("                               is left intact.\n");
1371         printf("      --preserve-modtime       Output files have their timestamps/permissions\n");
1372         printf("                               set to match those of their inputs (this is\n");
1373         printf("                               default).  Use --no-preserve-modtime to make\n");
1374         printf("                               output files have the current time and default\n");
1375         printf("                               permissions.\n");
1376         printf("      --keep-foreign-metadata  If encoding, save WAVE or AIFF non-audio chunks\n");
1377         printf("                               in FLAC metadata.  If decoding, restore any saved\n");
1378         printf("                               non-audio chunks from FLAC metadata when writing\n");
1379         printf("                               the decoded file.  Foreign metadata cannot be\n");
1380         printf("                               transcoded, e.g. WAVE chunks saved in a FLAC file\n");
1381         printf("                               cannot be restored when decoding to AIFF.  Input\n");
1382         printf("                               and output must be regular files, not stdin/out.\n");
1383         printf("      --skip={#|mm:ss.ss}      Skip the first # samples of each input file; can\n");
1384         printf("                               be used both for encoding and decoding.  The\n");
1385         printf("                               alternative form mm:ss.ss can be used to specify\n");
1386         printf("                               minutes, seconds, and fractions of a second.\n");
1387         printf("      --until={#|[+|-]mm:ss.ss}  Stop at the given sample number for each input\n");
1388         printf("                               file.  The given sample number is not included\n");
1389         printf("                               in the decoded output.  The alternative form\n");
1390         printf("                               mm:ss.ss can be used to specify minutes,\n");
1391         printf("                               seconds, and fractions of a second.  If a `+'\n");
1392         printf("                               sign is at the beginning, the --until point is\n");
1393         printf("                               relative to the --skip point.  If a `-' sign is\n");
1394         printf("                               at the beginning, the --until point is relative\n");
1395         printf("                               to end of the audio.\n");
1396 #if FLAC__HAS_OGG
1397         printf("      --ogg                    When encoding, generate Ogg FLAC output instead\n");
1398         printf("                               of native FLAC.  Ogg FLAC streams are FLAC\n");
1399         printf("                               streams wrapped in an Ogg transport layer.  The\n");
1400         printf("                               resulting file should have an '.oga' extension\n");
1401         printf("                               and will still be decodable by flac.  When\n");
1402         printf("                               decoding, force the input to be treated as\n");
1403         printf("                               Ogg FLAC.  This is useful when piping input\n");
1404         printf("                               from stdin or when the filename does not end in\n");
1405         printf("                               '.oga' or '.ogg'.\n");
1406         printf("      --serial-number          Serial number to use for the FLAC stream.  When\n");
1407         printf("                               encoding and no serial number is given, flac\n");
1408         printf("                               uses a random one.  If encoding to multiple files\n");
1409         printf("                               the serial number is incremented for each file.\n");
1410         printf("                               When decoding and no number is given, flac uses\n");
1411         printf("                               the serial number of the first page.\n");
1412 #endif
1413         printf("analysis options:\n");
1414         printf("      --residual-text          Include residual signal in text output.  This\n");
1415         printf("                               will make the file very big, much larger than\n");
1416         printf("                               even the decoded file.\n");
1417         printf("      --residual-gnuplot       Generate gnuplot files of residual distribution\n");
1418         printf("                               of each subframe\n");
1419         printf("decoding options:\n");
1420         printf("  -F, --decode-through-errors  By default flac stops decoding with an error\n");
1421         printf("                               and removes the partially decoded file if it\n");
1422         printf("                               encounters a bitstream error.  With -F, errors\n");
1423         printf("                               are still printed but flac will continue\n");
1424         printf("                               decoding to completion.  Note that errors may\n");
1425         printf("                               cause the decoded audio to be missing some\n");
1426         printf("                               samples or have silent sections.\n");
1427         printf("      --cue=[#.#][-[#.#]]      Set the beginning and ending cuepoints to\n");
1428         printf("                               decode.  The optional first #.# is the track and\n");
1429         printf("                               index point at which decoding will start; the\n");
1430         printf("                               default is the beginning of the stream.  The\n");
1431         printf("                               optional second #.# is the track and index point\n");
1432         printf("                               at which decoding will end; the default is the\n");
1433         printf("                               end of the stream.  If the cuepoint does not\n");
1434         printf("                               exist, the closest one before it (for the start\n");
1435         printf("                               point) or after it (for the end point) will be\n");
1436         printf("                               used.  The cuepoints are merely translated into\n");
1437         printf("                               sample numbers then used as --skip and --until.\n");
1438         printf("                               A CD track can always be cued by, for example,\n");
1439         printf("                               --cue=9.1-10.1 for track 9, even if the CD has\n");
1440         printf("                               no 10th track.\n");
1441         printf("encoding options:\n");
1442         printf("  -V, --verify                 Verify a correct encoding by decoding the\n");
1443         printf("                               output in parallel and comparing to the\n");
1444         printf("                               original\n");
1445         printf("      --lax                    Allow encoder to generate non-Subset files\n");
1446 #if 0 /*@@@ currently undocumented */
1447         printf("      --ignore-chunk-sizes     Ignore data chunk sizes in WAVE/AIFF files;\n");
1448         printf("                               useful when piping data from programs which\n");
1449         printf("                               generate bogus data chunk sizes.\n");
1450 #endif
1451         printf("      --sector-align           Align encoding of multiple CD format WAVE files\n");
1452         printf("                               on sector boundaries.  This option is DEPRECATED\n");
1453         printf("                               and may not exist in future versions of flac.\n");
1454         printf("                               shntool offers similar functionality.\n");
1455         printf("      --replay-gain            Calculate ReplayGain values and store them as\n");
1456         printf("                               FLAC tags.  Title gains/peaks will be computed\n");
1457         printf("                               for each file, and an album gain/peak will be\n");
1458         printf("                               computed for all files.  All input files must\n");
1459         printf("                               have the same resolution, sample rate, and\n");
1460         printf("                               number of channels.  The sample rate must be\n");
1461         printf("                               one of 8, 11.025, 12, 16, 22.05, 24, 32, 44.1,\n");
1462         printf("                               or 48 kHz.  NOTE: this option may also leave a\n");
1463         printf("                               few extra bytes in the PADDING block.\n");
1464         printf("      --cuesheet=FILENAME      Import the given cuesheet file and store it in\n");
1465         printf("                               a CUESHEET metadata block.  This option may only\n");
1466         printf("                               be used when encoding a single file.  A\n");
1467         printf("                               seekpoint will be added for each index point in\n");
1468         printf("                               the cuesheet to the SEEKTABLE unless\n");
1469         printf("                               --no-cued-seekpoints is specified.\n");
1470         printf("      --picture=SPECIFICATION  Import a picture and store it in a PICTURE block.\n");
1471         printf("                               More than one --picture command can be specified.\n");
1472         printf("                               The SPECIFICATION can either be a simple filename\n");
1473         printf("                               for the picture file, or a complete specification\n");
1474         printf("                               whose parts are separated by | characters.  Some\n");
1475         printf("                               parts may be left empty to invoke default values.\n");
1476         printf("                               Using a filename is shorthand for \"||||FILE\".\n");
1477         printf("                               The SPECIFICATION format is:\n");
1478         printf("         [TYPE]|[MIME-TYPE]|[DESCRIPTION]|[WIDTHxHEIGHTxDEPTH[/COLORS]]|FILE\n");
1479         printf("           TYPE is optional; it is a number from one of:\n");
1480         printf("              0: Other\n");
1481         printf("              1: 32x32 pixels 'file icon' (PNG only)\n");
1482         printf("              2: Other file icon\n");
1483         printf("              3: Cover (front)\n");
1484         printf("              4: Cover (back)\n");
1485         printf("              5: Leaflet page\n");
1486         printf("              6: Media (e.g. label side of CD)\n");
1487         printf("              7: Lead artist/lead performer/soloist\n");
1488         printf("              8: Artist/performer\n");
1489         printf("              9: Conductor\n");
1490         printf("             10: Band/Orchestra\n");
1491         printf("             11: Composer\n");
1492         printf("             12: Lyricist/text writer\n");
1493         printf("             13: Recording Location\n");
1494         printf("             14: During recording\n");
1495         printf("             15: During performance\n");
1496         printf("             16: Movie/video screen capture\n");
1497         printf("             17: A bright coloured fish\n");
1498         printf("             18: Illustration\n");
1499         printf("             19: Band/artist logotype\n");
1500         printf("             20: Publisher/Studio logotype\n");
1501         printf("             The default is 3 (front cover).  There may only be one picture each\n");
1502         printf("             of type 1 and 2 in a file.\n");
1503         printf("           MIME-TYPE is optional; if left blank, it will be detected from the\n");
1504         printf("             file.  For best compatibility with players, use pictures with MIME\n");
1505         printf("             type image/jpeg or image/png.  The MIME type can also be --> to\n");
1506         printf("             mean that FILE is actually a URL to an image, though this use is\n");
1507         printf("             discouraged.\n");
1508         printf("           DESCRIPTION is optional; the default is an empty string\n");
1509         printf("           The next part specfies the resolution and color information.  If\n");
1510         printf("             the MIME-TYPE is image/jpeg, image/png, or image/gif, you can\n");
1511         printf("             usually leave this empty and they can be detected from the file.\n");
1512         printf("             Otherwise, you must specify the width in pixels, height in pixels,\n");
1513         printf("             and color depth in bits-per-pixel.  If the image has indexed colors\n");
1514         printf("             you should also specify the number of colors used.\n");
1515         printf("           FILE is the path to the picture file to be imported, or the URL if\n");
1516         printf("             MIME type is -->\n");
1517         printf("  -T, --tag=FIELD=VALUE        Add a FLAC tag.  Make sure to quote the\n");
1518         printf("                               comment if necessary.  This option may appear\n");
1519         printf("                               more than once to add several comments.  NOTE:\n");
1520         printf("                               all tags will be added to all encoded files.\n");
1521         printf("      --tag-from-file=FIELD=FILENAME   Like --tag, except FILENAME is a file\n");
1522         printf("                               whose contents will be read verbatim to set the\n");
1523         printf("                               tag value.  The contents will be converted to\n");
1524         printf("                               UTF-8 from the local charset.  This can be used\n");
1525         printf("                               to store a cuesheet in a tag (e.g.\n");
1526         printf("                               --tag-from-file=\"CUESHEET=image.cue\").  Do not\n");
1527         printf("                               try to store binary data in tag fields!  Use\n");
1528         printf("                               APPLICATION blocks for that.\n");
1529         printf("  -S, --seekpoint={#|X|#x|#s}  Include a point or points in a SEEKTABLE\n");
1530         printf("       #  : a specific sample number for a seek point\n");
1531         printf("       X  : a placeholder point (always goes at the end of the SEEKTABLE)\n");
1532         printf("       #x : # evenly spaced seekpoints, the first being at sample 0\n");
1533         printf("       #s : a seekpoint every # seconds; # does not have to be a whole number\n");
1534         printf("     You may use many -S options; the resulting SEEKTABLE will be the unique-\n");
1535         printf("           ified union of all such values.\n");
1536         printf("     With no -S options, flac defaults to '-S 10s'.  Use -S- for no SEEKTABLE.\n");
1537         printf("     Note: -S #x and -S #s will not work if the encoder can't determine the\n");
1538         printf("           input size before starting.\n");
1539         printf("     Note: if you use -S # and # is >= samples in the input, there will be\n");
1540         printf("           either no seek point entered (if the input size is determinable\n");
1541         printf("           before encoding starts) or a placeholder point (if input size is not\n");
1542         printf("           determinable)\n");
1543         printf("  -P, --padding=#              Tell the encoder to write a PADDING metadata\n");
1544         printf("                               block of the given length (in bytes) after the\n");
1545         printf("                               STREAMINFO block.  This is useful if you plan\n");
1546         printf("                               to tag the file later with an APPLICATION\n");
1547         printf("                               block; instead of having to rewrite the entire\n");
1548         printf("                               file later just to insert your block, you can\n");
1549         printf("                               write directly over the PADDING block.  Note\n");
1550         printf("                               that the total length of the PADDING block will\n");
1551         printf("                               be 4 bytes longer than the length given because\n");
1552         printf("                               of the 4 metadata block header bytes.  You can\n");
1553         printf("                               force no PADDING block at all to be written with\n");
1554         printf("                               --no-padding.  The encoder writes a PADDING\n");
1555         printf("                               block of 8192 bytes by default, or 65536 bytes\n");
1556         printf("                               if the input audio is more than 20 minutes long.\n");
1557         printf("  -b, --blocksize=#            Specify the blocksize in samples; the default is\n");
1558         printf("                               1152 for -l 0, else 4096; must be one of 192,\n");
1559         printf("                               576, 1152, 2304, 4608, 256, 512, 1024, 2048,\n");
1560         printf("                               4096 (and 8192 or 16384 if the sample rate is\n");
1561         printf("                               >48kHz) for Subset streams.\n");
1562         printf("  -0, --compression-level-0, --fast  Synonymous with -l 0 -b 1152 -r 3\n");
1563         printf("  -1, --compression-level-1          Synonymous with -l 0 -b 1152 -M -r 3\n");
1564         printf("  -2, --compression-level-2          Synonymous with -l 0 -b 1152 -m -r 3\n");
1565         printf("  -3, --compression-level-3          Synonymous with -l 6 -b 4096 -r 4\n");
1566         printf("  -4, --compression-level-4          Synonymous with -l 8 -b 4096 -M -r 4\n");
1567         printf("  -5, --compression-level-5          Synonymous with -l 8 -b 4096 -m -r 5\n");
1568         printf("                                     -5 is the default setting\n");
1569         printf("  -6, --compression-level-6          Synonymous with -l 8 -b 4096 -m -r 6\n");
1570         printf("  -7, --compression-level-7          Synonymous with -l 8 -b 4096 -m -e -r 6\n");
1571         printf("  -8, --compression-level-8, --best  Synonymous with -l 12 -b 4096 -m -e -r 6\n");
1572         printf("  -m, --mid-side                     Try mid-side coding for each frame\n");
1573         printf("                                     (stereo only)\n");
1574         printf("  -M, --adaptive-mid-side            Adaptive mid-side coding for all frames\n");
1575         printf("                                     (stereo only)\n");
1576         printf("  -e, --exhaustive-model-search      Do exhaustive model search (expensive!)\n");
1577         printf("  -A, --apodization=\"function\"       Window audio data with given the function.\n");
1578         printf("                                     The functions are: bartlett, bartlett_hann,\n");
1579         printf("                                     blackman, blackman_harris_4term_92db,\n");
1580         printf("                                     connes, flattop, gauss(STDDEV), hamming,\n");
1581         printf("                                     hann, kaiser_bessel, nuttall, rectangle,\n");
1582         printf("                                     triangle, tukey(P), welch.  More than one\n");
1583         printf("                                     may be specified but encoding time is a\n");
1584         printf("                                     multiple of the number of functions since\n");
1585         printf("                                     they are each tried in turn.  The encoder\n");
1586         printf("                                     chooses suitable defaults in the absence\n");
1587         printf("                                     of any -A options.\n");
1588         printf("  -l, --max-lpc-order=#              Max LPC order; 0 => only fixed predictors.\n");
1589         printf("                                     Must be <= 12 for Subset streams if sample\n");
1590         printf("                                     rate is <=48kHz.\n");
1591         printf("  -p, --qlp-coeff-precision-search   Do exhaustive search of LP coefficient\n");
1592         printf("                                     quantization (expensive!); overrides -q;\n");
1593         printf("                                     does nothing if using -l 0\n");
1594         printf("  -q, --qlp-coeff-precision=#        Specify precision in bits of quantized\n");
1595         printf("                                     linear-predictor coefficients; 0 => let\n");
1596         printf("                                     encoder decide (the minimun is %u, the\n", FLAC__MIN_QLP_COEFF_PRECISION);
1597         printf("                                     default is -q 0)\n");
1598         printf("  -r, --rice-partition-order=[#,]#   Set [min,]max residual partition order\n");
1599         printf("                                     (# is 0..16; min defaults to 0; the\n");
1600         printf("                                     default is -r 0; above 4 doesn't usually\n");
1601         printf("                                     help much)\n");
1602         printf("format options:\n");
1603         printf("      --endian={big|little}    Set byte order for samples\n");
1604         printf("      --channels=#             Number of channels\n");
1605         printf("      --bps=#                  Number of bits per sample\n");
1606         printf("      --sample-rate=#          Sample rate in Hz\n");
1607         printf("      --sign={signed|unsigned} Sign of samples (the default is signed)\n");
1608         printf("      --input-size=#           Size of the raw input in bytes.  If you are\n");
1609         printf("                               encoding raw samples from stdin, you must set\n");
1610         printf("                               this option in order to be able to use --skip,\n");
1611         printf("                               --until, --cuesheet, or other options that need\n");
1612         printf("                               to know the size of the input beforehand.  If\n");
1613         printf("                               the size given is greater than what is found in\n");
1614         printf("                               the input stream, the encoder will complain\n");
1615         printf("                               about an unexpected end-of-file.  If the size\n");
1616         printf("                               given is less, samples will be truncated.\n");
1617         printf("      --force-raw-format       Force input (when encoding) or output (when\n");
1618         printf("                               decoding) to be treated as raw samples\n");
1619         printf("      --force-aiff-format      Force the decoder to output AIFF format.  This\n");
1620         printf("                               option is not needed if the output filename (as\n");
1621         printf("                               set by -o) ends with .aif or .aiff; this option\n");
1622         printf("                               has no effect when encoding since input AIFF is\n");
1623         printf("                               auto-detected.\n");
1624         printf("      --force-rf64-format      Force the decoder to output RF64 format.  This\n");
1625         printf("                               option is not needed if the output filename (as\n");
1626         printf("                               set by -o) ends with .rf64; this option\n");
1627         printf("                               has no effect when encoding since input RF64 is\n");
1628         printf("                               auto-detected.\n");
1629         printf("      --force-wave64-format    Force the decoder to output Wave64 format.  This\n");
1630         printf("                               option is not needed if the output filename (as\n");
1631         printf("                               set by -o) ends with .w64; this option\n");
1632         printf("                               has no effect when encoding since input Wave64 is\n");
1633         printf("                               auto-detected.\n");
1634         printf("negative options:\n");
1635         printf("      --no-adaptive-mid-side\n");
1636         printf("      --no-cued-seekpoints\n");
1637         printf("      --no-decode-through-errors\n");
1638         printf("      --no-delete-input-file\n");
1639         printf("      --no-preserve-modtime\n");
1640         printf("      --no-keep-foreign-metadata\n");
1641         printf("      --no-exhaustive-model-search\n");
1642         printf("      --no-lax\n");
1643         printf("      --no-mid-side\n");
1644 #if FLAC__HAS_OGG
1645         printf("      --no-ogg\n");
1646 #endif
1647         printf("      --no-padding\n");
1648         printf("      --no-qlp-coeff-prec-search\n");
1649         printf("      --no-residual-gnuplot\n");
1650         printf("      --no-residual-text\n");
1651 #if 0 /*@@@ currently undocumented */
1652         printf("      --no-ignore-chunk-sizes\n");
1653 #endif
1654         printf("      --no-sector-align\n");
1655         printf("      --no-seektable\n");
1656         printf("      --no-silent\n");
1657         printf("      --no-force\n");
1658         printf("      --no-verify\n");
1659         printf("      --no-warnings-as-errors\n");
1660 }
1661
1662 void format_mistake(const char *infilename, FileFormat wrong, FileFormat right)
1663 {
1664         /* WATCHOUT: indexed by FileFormat */
1665         static const char * const ff[] = { " raw", " WAVE", "n RF64", "n AIFF", "n AIFF-C", " FLAC", "n Ogg FLAC" };
1666         flac__utils_printf(stderr, 1, "WARNING: %s is not a%s file; treating as a%s file\n", infilename, ff[wrong], ff[right]);
1667 }
1668
1669 int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file)
1670 {
1671         FILE *encode_infile;
1672         FLAC__byte lookahead[12];
1673         unsigned lookahead_length = 0;
1674         FileFormat input_format = FORMAT_RAW;
1675         int retval;
1676         FLAC__off_t infilesize;
1677         encode_options_t encode_options;
1678         const char *outfilename = get_encoded_outfilename(infilename); /* the final name of the encoded file */
1679         /* internal_outfilename is the file we will actually write to; it will be a temporary name if infilename==outfilename */
1680         char *internal_outfilename = 0; /* NULL implies 'use outfilename' */
1681
1682         if(0 == outfilename) {
1683                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", infilename);
1684                 return 1;
1685         }
1686
1687         if(0 == strcmp(infilename, "-")) {
1688                 infilesize = (FLAC__off_t)(-1);
1689                 encode_infile = grabbag__file_get_binary_stdin();
1690         }
1691         else {
1692                 infilesize = grabbag__file_get_filesize(infilename);
1693                 if(0 == (encode_infile = flac_fopen(infilename, "rb"))) {
1694                         flac__utils_printf(stderr, 1, "ERROR: can't open input file %s: %s\n", infilename, strerror(errno));
1695                         return 1;
1696                 }
1697         }
1698
1699         if(!option_values.force_raw_format) {
1700                 /* first set format based on name */
1701                 if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".wav"))
1702                         input_format = FORMAT_WAVE;
1703                 else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".rf64"))
1704                         input_format = FORMAT_RF64;
1705                 else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".w64"))
1706                         input_format = FORMAT_WAVE64;
1707                 else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".aif"))
1708                         input_format = FORMAT_AIFF;
1709                 else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".aiff"))
1710                         input_format = FORMAT_AIFF;
1711                 else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".flac"))
1712                         input_format = FORMAT_FLAC;
1713                 else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".oga"))
1714                         input_format = FORMAT_OGGFLAC;
1715                 else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".ogg"))
1716                         input_format = FORMAT_OGGFLAC;
1717
1718                 /* attempt to guess the file type based on the first 12 bytes */
1719                 if((lookahead_length = fread(lookahead, 1, 12, encode_infile)) < 12) {
1720                         /* all supported non-raw formats have at least 12 bytes of header to read */
1721                         if(input_format != FORMAT_RAW) {
1722                                 format_mistake(infilename, input_format, FORMAT_RAW);
1723                                 if(option_values.treat_warnings_as_errors) {
1724                                         conditional_fclose(encode_infile);
1725                                         return 1;
1726                                 }
1727                         }
1728                         /* force to raw */
1729                         input_format = FORMAT_RAW;
1730                 }
1731                 else {
1732                         if(!memcmp(lookahead, "ID3", 3)) {
1733                                 flac__utils_printf(stderr, 1, "ERROR: input file %s has an ID3v2 tag\n", infilename);
1734                                 conditional_fclose(encode_infile);
1735                                 return 1;
1736                         }
1737                         else if(!memcmp(lookahead, "RIFF", 4) && !memcmp(lookahead+8, "WAVE", 4))
1738                                 input_format = FORMAT_WAVE;
1739                         else if(!memcmp(lookahead, "RF64", 4) && !memcmp(lookahead+8, "WAVE", 4))
1740                                 input_format = FORMAT_RF64;
1741                         else if(!memcmp(lookahead, "riff\x2E\x91\xCF\x11\xA5\xD6\x28\xDB", 12)) /* just check 1st 12 bytes of GUID */
1742                                 input_format = FORMAT_WAVE64;
1743                         else if(!memcmp(lookahead, "FORM", 4) && !memcmp(lookahead+8, "AIFF", 4))
1744                                 input_format = FORMAT_AIFF;
1745                         else if(!memcmp(lookahead, "FORM", 4) && !memcmp(lookahead+8, "AIFC", 4))
1746                                 input_format = FORMAT_AIFF_C;
1747                         else if(!memcmp(lookahead, FLAC__STREAM_SYNC_STRING, sizeof(FLAC__STREAM_SYNC_STRING)))
1748                                 input_format = FORMAT_FLAC;
1749                         /*@@@ this could be made more accurate by looking at the first packet to make sure it's Ogg FLAC and not, say, Ogg Vorbis.  we do catch such problems later though. */
1750                         else if(!memcmp(lookahead, "OggS", 4))
1751                                 input_format = FORMAT_OGGFLAC;
1752                         else {
1753                                 /* didn't find header of any supported format */
1754                                 if(input_format != FORMAT_RAW) {
1755                                         format_mistake(infilename, input_format, FORMAT_RAW);
1756                                         if(option_values.treat_warnings_as_errors) {
1757                                                 conditional_fclose(encode_infile);
1758                                                 return 1;
1759                                         }
1760                                 }
1761                                 /* force to raw */
1762                                 input_format = FORMAT_RAW;
1763                         }
1764                 }
1765         }
1766
1767         if(option_values.keep_foreign_metadata) {
1768                 if(encode_infile == stdin || option_values.force_to_stdout) {
1769                         conditional_fclose(encode_infile);
1770                         return usage_error("ERROR: --keep-foreign-metadata cannot be used when encoding from stdin or to stdout\n");
1771                 }
1772                 if(input_format != FORMAT_WAVE && input_format != FORMAT_WAVE64 && input_format != FORMAT_RF64 && input_format != FORMAT_AIFF && input_format != FORMAT_AIFF_C) {
1773                         conditional_fclose(encode_infile);
1774                         return usage_error("ERROR: --keep-foreign-metadata can only be used with WAVE, Wave64, RF64, or AIFF input\n");
1775                 }
1776         }
1777
1778         /*
1779          * Error if output file already exists (and -f not used).
1780          * Use grabbag__file_get_filesize() as a cheap way to check.
1781          */
1782         if(!option_values.test_only && !option_values.force_file_overwrite && strcmp(outfilename, "-") && grabbag__file_get_filesize(outfilename) != (FLAC__off_t)(-1)) {
1783                 if(input_format == FORMAT_FLAC) {
1784                         /* need more detailed error message when re-flac'ing to avoid confusing the user */
1785                         flac__utils_printf(stderr, 1,
1786                                 "ERROR: output file %s already exists.\n\n"
1787                                 "By default flac encodes files to FLAC format; if you meant to decode this file\n"
1788                                 "from FLAC to something else, use -d.  If you meant to re-encode this file from\n"
1789                                 "FLAC to FLAC again, use -f to force writing to the same file, or -o to specify\n"
1790                                 "a different output filename.\n",
1791                                 outfilename
1792                         );
1793                 }
1794                 else if(input_format == FORMAT_OGGFLAC) {
1795                         /* need more detailed error message when re-flac'ing to avoid confusing the user */
1796                         flac__utils_printf(stderr, 1,
1797                                 "ERROR: output file %s already exists.\n\n"
1798                                 "By default 'flac -ogg' encodes files to Ogg FLAC format; if you meant to decode\n"
1799                                 "this file from Ogg FLAC to something else, use -d.  If you meant to re-encode\n"
1800                                 "this file from Ogg FLAC to Ogg FLAC again, use -f to force writing to the same\n"
1801                                 "file, or -o to specify a different output filename.\n",
1802                                 outfilename
1803                         );
1804                 }
1805                 else
1806                         flac__utils_printf(stderr, 1, "ERROR: output file %s already exists, use -f to override\n", outfilename);
1807                 conditional_fclose(encode_infile);
1808                 return 1;
1809         }
1810
1811         if(option_values.format_input_size >= 0) {
1812                 if (input_format != FORMAT_RAW || infilesize >= 0) {
1813                         flac__utils_printf(stderr, 1, "ERROR: can only use --input-size when encoding raw samples from stdin\n");
1814                         conditional_fclose(encode_infile);
1815                         return 1;
1816                 }
1817                 else {
1818                         infilesize = option_values.format_input_size;
1819                 }
1820         }
1821
1822         if(option_values.sector_align && (input_format == FORMAT_FLAC || input_format == FORMAT_OGGFLAC)) {
1823                 flac__utils_printf(stderr, 1, "ERROR: can't use --sector-align when the input file is FLAC or Ogg FLAC\n");
1824                 conditional_fclose(encode_infile);
1825                 return 1;
1826         }
1827         if(option_values.sector_align && input_format == FORMAT_RAW && infilesize < 0) {
1828                 flac__utils_printf(stderr, 1, "ERROR: can't use --sector-align when the input size is unknown\n");
1829                 conditional_fclose(encode_infile);
1830                 return 1;
1831         }
1832
1833         if(input_format == FORMAT_RAW) {
1834                 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) {
1835                         conditional_fclose(encode_infile);
1836                         return usage_error("ERROR: for encoding a raw file you must specify a value for --endian, --sign, --channels, --bps, and --sample-rate\n");
1837                 }
1838         }
1839
1840         if(option_values.force_to_stdout) {
1841                 if(option_values.replay_gain) {
1842                         conditional_fclose(encode_infile);
1843                         return usage_error("ERROR: --replay-gain cannot be used when encoding to stdout\n");
1844                 }
1845         }
1846         if(option_values.replay_gain && option_values.use_ogg) {
1847                 conditional_fclose(encode_infile);
1848                 return usage_error("ERROR: --replay-gain cannot be used when encoding to Ogg FLAC yet\n");
1849         }
1850
1851         if(!flac__utils_parse_skip_until_specification(option_values.skip_specification, &encode_options.skip_specification) || encode_options.skip_specification.is_relative) {
1852                 conditional_fclose(encode_infile);
1853                 return usage_error("ERROR: invalid value for --skip\n");
1854         }
1855
1856         if(!flac__utils_parse_skip_until_specification(option_values.until_specification, &encode_options.until_specification)) { /*@@@@ more checks: no + without --skip, no - unless known total_samples_to_{en,de}code */
1857                 conditional_fclose(encode_infile);
1858                 return usage_error("ERROR: invalid value for --until\n");
1859         }
1860         /* if there is no "--until" we want to default to "--until=-0" */
1861         if(0 == option_values.until_specification)
1862                 encode_options.until_specification.is_relative = true;
1863
1864         encode_options.verify = option_values.verify;
1865         encode_options.treat_warnings_as_errors = option_values.treat_warnings_as_errors;
1866 #if FLAC__HAS_OGG
1867         encode_options.use_ogg = option_values.use_ogg;
1868         /* set a random serial number if one has not yet been specified */
1869         if(!option_values.has_serial_number) {
1870                 option_values.serial_number = rand();
1871                 option_values.has_serial_number = true;
1872         }
1873         encode_options.serial_number = option_values.serial_number++;
1874 #endif
1875         encode_options.lax = option_values.lax;
1876         encode_options.padding = option_values.padding;
1877         encode_options.num_compression_settings = option_values.num_compression_settings;
1878         FLAC__ASSERT(sizeof(encode_options.compression_settings) >= sizeof(option_values.compression_settings));
1879         memcpy(encode_options.compression_settings, option_values.compression_settings, sizeof(option_values.compression_settings));
1880         encode_options.requested_seek_points = option_values.requested_seek_points;
1881         encode_options.num_requested_seek_points = option_values.num_requested_seek_points;
1882         encode_options.cuesheet_filename = option_values.cuesheet_filename;
1883         encode_options.continue_through_decode_errors = option_values.continue_through_decode_errors;
1884         encode_options.cued_seekpoints = option_values.cued_seekpoints;
1885         encode_options.channel_map_none = option_values.channel_map_none;
1886         encode_options.is_first_file = is_first_file;
1887         encode_options.is_last_file = is_last_file;
1888         encode_options.align_reservoir = align_reservoir;
1889         encode_options.align_reservoir_samples = &align_reservoir_samples;
1890         encode_options.replay_gain = option_values.replay_gain;
1891         encode_options.ignore_chunk_sizes = option_values.ignore_chunk_sizes;
1892         encode_options.sector_align = option_values.sector_align;
1893         encode_options.vorbis_comment = option_values.vorbis_comment;
1894         FLAC__ASSERT(sizeof(encode_options.pictures) >= sizeof(option_values.pictures));
1895         memcpy(encode_options.pictures, option_values.pictures, sizeof(option_values.pictures));
1896         encode_options.num_pictures = option_values.num_pictures;
1897         encode_options.format = input_format;
1898         encode_options.debug.disable_constant_subframes = option_values.debug.disable_constant_subframes;
1899         encode_options.debug.disable_fixed_subframes = option_values.debug.disable_fixed_subframes;
1900         encode_options.debug.disable_verbatim_subframes = option_values.debug.disable_verbatim_subframes;
1901         encode_options.debug.do_md5 = option_values.debug.do_md5;
1902
1903         /* if infilename and outfilename point to the same file, we need to write to a temporary file */
1904         if(encode_infile != stdin && grabbag__file_are_same(infilename, outfilename)) {
1905                 static const char *tmp_suffix = ".tmp,fl-ac+en'c";
1906                 size_t dest_len = strlen(outfilename) + strlen(tmp_suffix) + 1;
1907                 /*@@@@ still a remote possibility that a file with this filename exists */
1908                 if(0 == (internal_outfilename = safe_malloc_(dest_len))) {
1909                         flac__utils_printf(stderr, 1, "ERROR allocating memory for tempfile name\n");
1910                         conditional_fclose(encode_infile);
1911                         return 1;
1912                 }
1913                 safe_strncpy(internal_outfilename, outfilename, dest_len);
1914                 safe_strncat(internal_outfilename, tmp_suffix, dest_len);
1915         }
1916
1917         if(input_format == FORMAT_RAW) {
1918                 encode_options.format_options.raw.is_big_endian = option_values.format_is_big_endian;
1919                 encode_options.format_options.raw.is_unsigned_samples = option_values.format_is_unsigned_samples;
1920                 encode_options.format_options.raw.channels = option_values.format_channels;
1921                 encode_options.format_options.raw.bps = option_values.format_bps;
1922                 encode_options.format_options.raw.sample_rate = option_values.format_sample_rate;
1923
1924                 retval = flac__encode_file(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, encode_options);
1925         }
1926         else if(input_format == FORMAT_FLAC || input_format == FORMAT_OGGFLAC) {
1927                 retval = flac__encode_file(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, encode_options);
1928         }
1929         else if(input_format == FORMAT_WAVE || input_format == FORMAT_WAVE64 || input_format == FORMAT_RF64 || input_format == FORMAT_AIFF || input_format == FORMAT_AIFF_C) {
1930                 encode_options.format_options.iff.foreign_metadata = 0;
1931
1932                 /* initialize foreign metadata if requested */
1933                 if(option_values.keep_foreign_metadata) {
1934                         encode_options.format_options.iff.foreign_metadata =
1935                                 flac__foreign_metadata_new(
1936                                         input_format==FORMAT_WAVE || input_format==FORMAT_RF64?
1937                                                 FOREIGN_BLOCK_TYPE__RIFF :
1938                                         input_format==FORMAT_WAVE64?
1939                                                 FOREIGN_BLOCK_TYPE__WAVE64 :
1940                                                 FOREIGN_BLOCK_TYPE__AIFF
1941                                 );
1942                         if(0 == encode_options.format_options.iff.foreign_metadata) {
1943                                 flac__utils_printf(stderr, 1, "ERROR: creating foreign metadata object\n");
1944                                 conditional_fclose(encode_infile);
1945                                 if(internal_outfilename != 0)
1946                                         free(internal_outfilename);
1947                                 return 1;
1948                         }
1949                 }
1950
1951                 retval = flac__encode_file(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, encode_options);
1952
1953                 if(encode_options.format_options.iff.foreign_metadata)
1954                         flac__foreign_metadata_delete(encode_options.format_options.iff.foreign_metadata);
1955         }
1956         else {
1957                 FLAC__ASSERT(0);
1958                 retval = 1; /* double protection */
1959         }
1960
1961         if(retval == 0) {
1962                 if(strcmp(outfilename, "-")) {
1963                         if(option_values.replay_gain) {
1964                                 float title_gain, title_peak;
1965                                 const char *error;
1966                                 grabbag__replaygain_get_title(&title_gain, &title_peak);
1967                                 if(
1968                                         0 != (error = grabbag__replaygain_store_to_file_reference(internal_outfilename? internal_outfilename : outfilename, option_values.preserve_modtime)) ||
1969                                         0 != (error = grabbag__replaygain_store_to_file_title(internal_outfilename? internal_outfilename : outfilename, title_gain, title_peak, option_values.preserve_modtime))
1970                                 ) {
1971                                         flac__utils_printf(stderr, 1, "%s: ERROR writing ReplayGain reference/title tags (%s)\n", outfilename, error);
1972                                         retval = 1;
1973                                 }
1974                         }
1975                         if(option_values.preserve_modtime && strcmp(infilename, "-"))
1976                                 grabbag__file_copy_metadata(infilename, internal_outfilename? internal_outfilename : outfilename);
1977                 }
1978         }
1979
1980         /* rename temporary file if necessary */
1981         if(retval == 0 && internal_outfilename != 0) {
1982                 if(flac_rename(internal_outfilename, outfilename) < 0) {
1983 #if defined _MSC_VER || defined __MINGW32__ || defined __EMX__
1984                         /* on some flavors of windows, flac_rename() will fail if the destination already exists, so we unlink and try again */
1985                         if(flac_unlink(outfilename) < 0) {
1986                                 flac__utils_printf(stderr, 1, "ERROR: moving new FLAC file %s back on top of original FLAC file %s, keeping both\n", internal_outfilename, outfilename);
1987                                 retval = 1;
1988                         }
1989                         else if(flac_rename(internal_outfilename, outfilename) < 0) {
1990                                 flac__utils_printf(stderr, 1, "ERROR: moving new FLAC file %s back on top of original FLAC file %s, you must do it\n", internal_outfilename, outfilename);
1991                                 retval = 1;
1992                         }
1993 #else
1994                         flac__utils_printf(stderr, 1, "ERROR: moving new FLAC file %s back on top of original FLAC file %s, keeping both\n", internal_outfilename, outfilename);
1995                         retval = 1;
1996 #endif
1997                 }
1998         }
1999
2000         /* handle --delete-input-file, but don't want to delete if piping from stdin, or if input filename and output filename are the same */
2001         if(retval == 0 && option_values.delete_input && strcmp(infilename, "-") && internal_outfilename == 0)
2002                 flac_unlink(infilename);
2003
2004         if(internal_outfilename != 0)
2005                 free(internal_outfilename);
2006
2007         return retval;
2008 }
2009
2010 int decode_file(const char *infilename)
2011 {
2012         int retval;
2013         FLAC__bool treat_as_ogg = false;
2014         FileFormat output_format = FORMAT_WAVE;
2015         decode_options_t decode_options;
2016         const char *outfilename = get_decoded_outfilename(infilename);
2017
2018         if(0 == outfilename) {
2019                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", infilename);
2020                 return 1;
2021         }
2022
2023         /*
2024          * Error if output file already exists (and -f not used).
2025          * Use grabbag__file_get_filesize() as a cheap way to check.
2026          */
2027         if(!option_values.test_only && !option_values.force_file_overwrite && strcmp(outfilename, "-") && grabbag__file_get_filesize(outfilename) != (FLAC__off_t)(-1)) {
2028                 flac__utils_printf(stderr, 1, "ERROR: output file %s already exists, use -f to override\n", outfilename);
2029                 return 1;
2030         }
2031
2032         if(option_values.force_raw_format)
2033                 output_format = FORMAT_RAW;
2034         else if(
2035                 option_values.force_aiff_format ||
2036                 (strlen(outfilename) >= 4 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-4), ".aif")) ||
2037                 (strlen(outfilename) >= 5 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-5), ".aiff"))
2038         )
2039                 output_format = FORMAT_AIFF;
2040         else if(
2041                 option_values.force_rf64_format ||
2042                 (strlen(outfilename) >= 5 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-5), ".rf64"))
2043         )
2044                 output_format = FORMAT_RF64;
2045         else if(
2046                 option_values.force_wave64_format ||
2047                 (strlen(outfilename) >= 4 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-4), ".w64"))
2048         )
2049                 output_format = FORMAT_WAVE64;
2050         else
2051                 output_format = FORMAT_WAVE;
2052
2053         if(!option_values.test_only && !option_values.analyze) {
2054                 if(output_format == FORMAT_RAW && (option_values.format_is_big_endian < 0 || option_values.format_is_unsigned_samples < 0))
2055                         return usage_error("ERROR: for decoding to a raw file you must specify a value for --endian and --sign\n");
2056         }
2057
2058         if(option_values.keep_foreign_metadata) {
2059                 if(0 == strcmp(infilename, "-") || 0 == strcmp(outfilename, "-"))
2060                         return usage_error("ERROR: --keep-foreign-metadata cannot be used when decoding from stdin or to stdout\n");
2061                 if(output_format != FORMAT_WAVE && output_format != FORMAT_WAVE64 && output_format != FORMAT_RF64 && output_format != FORMAT_AIFF && output_format != FORMAT_AIFF_C)
2062                         return usage_error("ERROR: --keep-foreign-metadata can only be used with WAVE, Wave64, RF64, or AIFF output\n");
2063         }
2064
2065         if(option_values.use_ogg)
2066                 treat_as_ogg = true;
2067         else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".oga"))
2068                 treat_as_ogg = true;
2069         else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".ogg"))
2070                 treat_as_ogg = true;
2071         else
2072                 treat_as_ogg = false;
2073
2074 #if !FLAC__HAS_OGG
2075         if(treat_as_ogg) {
2076                 flac__utils_printf(stderr, 1, "%s: Ogg support has not been built into this copy of flac\n", infilename);
2077                 return 1;
2078         }
2079 #endif
2080
2081         if(!flac__utils_parse_skip_until_specification(option_values.skip_specification, &decode_options.skip_specification) || decode_options.skip_specification.is_relative)
2082                 return usage_error("ERROR: invalid value for --skip\n");
2083
2084         if(!flac__utils_parse_skip_until_specification(option_values.until_specification, &decode_options.until_specification)) /*@@@ more checks: no + without --skip, no - unless known total_samples_to_{en,de}code */
2085                 return usage_error("ERROR: invalid value for --until\n");
2086         /* if there is no "--until" we want to default to "--until=-0" */
2087         if(0 == option_values.until_specification)
2088                 decode_options.until_specification.is_relative = true;
2089
2090         if(option_values.cue_specification) {
2091                 if(!flac__utils_parse_cue_specification(option_values.cue_specification, &decode_options.cue_specification))
2092                         return usage_error("ERROR: invalid value for --cue\n");
2093                 decode_options.has_cue_specification = true;
2094         }
2095         else
2096                 decode_options.has_cue_specification = false;
2097
2098         decode_options.treat_warnings_as_errors = option_values.treat_warnings_as_errors;
2099         decode_options.continue_through_decode_errors = option_values.continue_through_decode_errors;
2100         decode_options.replaygain_synthesis_spec = option_values.replaygain_synthesis_spec;
2101 #if FLAC__HAS_OGG
2102         decode_options.is_ogg = treat_as_ogg;
2103         decode_options.use_first_serial_number = !option_values.has_serial_number;
2104         decode_options.serial_number = option_values.serial_number;
2105 #endif
2106         decode_options.channel_map_none = option_values.channel_map_none;
2107         decode_options.format = output_format;
2108
2109         if(output_format == FORMAT_RAW) {
2110                 decode_options.format_options.raw.is_big_endian = option_values.format_is_big_endian;
2111                 decode_options.format_options.raw.is_unsigned_samples = option_values.format_is_unsigned_samples;
2112
2113                 retval = flac__decode_file(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, decode_options);
2114         }
2115         else {
2116                 decode_options.format_options.iff.foreign_metadata = 0;
2117
2118                 /* initialize foreign metadata if requested */
2119                 if(option_values.keep_foreign_metadata) {
2120                         decode_options.format_options.iff.foreign_metadata =
2121                                 flac__foreign_metadata_new(
2122                                         output_format==FORMAT_WAVE || output_format==FORMAT_RF64?
2123                                                 FOREIGN_BLOCK_TYPE__RIFF :
2124                                         output_format==FORMAT_WAVE64?
2125                                                 FOREIGN_BLOCK_TYPE__WAVE64 :
2126                                                 FOREIGN_BLOCK_TYPE__AIFF
2127                                 );
2128                         if(0 == decode_options.format_options.iff.foreign_metadata) {
2129                                 flac__utils_printf(stderr, 1, "ERROR: creating foreign metadata object\n");
2130                                 return 1;
2131                         }
2132                 }
2133
2134                 retval = flac__decode_file(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, decode_options);
2135
2136                 if(decode_options.format_options.iff.foreign_metadata)
2137                         flac__foreign_metadata_delete(decode_options.format_options.iff.foreign_metadata);
2138         }
2139
2140         if(retval == 0 && strcmp(infilename, "-")) {
2141                 if(option_values.preserve_modtime && strcmp(outfilename, "-"))
2142                         grabbag__file_copy_metadata(infilename, outfilename);
2143                 if(option_values.delete_input && !option_values.test_only && !option_values.analyze)
2144                         flac_unlink(infilename);
2145         }
2146
2147         return retval;
2148 }
2149
2150 const char *get_encoded_outfilename(const char *infilename)
2151 {
2152         const char *suffix = (option_values.use_ogg? ".oga" : ".flac");
2153         return get_outfilename(infilename, suffix);
2154 }
2155
2156 const char *get_decoded_outfilename(const char *infilename)
2157 {
2158         const char *suffix;
2159         if(option_values.analyze) {
2160                 suffix = ".ana";
2161         }
2162         else if(option_values.force_raw_format) {
2163                 suffix = ".raw";
2164         }
2165         else if(option_values.force_aiff_format) {
2166                 suffix = ".aiff";
2167         }
2168         else if(option_values.force_rf64_format) {
2169                 suffix = ".rf64";
2170         }
2171         else if(option_values.force_wave64_format) {
2172                 suffix = ".w64";
2173         }
2174         else {
2175                 suffix = ".wav";
2176         }
2177         return get_outfilename(infilename, suffix);
2178 }
2179
2180 const char *get_outfilename(const char *infilename, const char *suffix)
2181 {
2182         if(0 == option_values.cmdline_forced_outfilename) {
2183                 static char buffer[4096]; /* @@@ bad MAGIC NUMBER */
2184
2185                 if(0 == strcmp(infilename, "-") || option_values.force_to_stdout) {
2186                         safe_strncpy(buffer, "-", sizeof(buffer));
2187                 }
2188                 else {
2189                         char *p;
2190                         if (flac__strlcpy(buffer, option_values.output_prefix? option_values.output_prefix : "", sizeof buffer) >= sizeof buffer)
2191                                 return 0;
2192                         if (flac__strlcat(buffer, infilename, sizeof buffer) >= sizeof buffer)
2193                                 return 0;
2194                         /* the . must come after any / to avoid problems with, e.g. "some.directory/extensionless-filename" */
2195                         if(0 == (p = strrchr(buffer, '.')) || strchr(p, '/')) {
2196                                 if (flac__strlcat(buffer, suffix, sizeof buffer) >= sizeof buffer)
2197                                         return 0;
2198                         }
2199                         else {
2200                                 *p = '\0';
2201                                 if (flac__strlcat(buffer, suffix, sizeof buffer) >= sizeof buffer)
2202                                         return 0;
2203                         }
2204                 }
2205                 return buffer;
2206         }
2207         else
2208                 return option_values.cmdline_forced_outfilename;
2209 }
2210
2211 void die(const char *message)
2212 {
2213         FLAC__ASSERT(0 != message);
2214         flac__utils_printf(stderr, 1, "ERROR: %s\n", message);
2215         exit(1);
2216 }
2217
2218 int conditional_fclose(FILE *f)
2219 {
2220         if(f == 0 || f == stdin || f == stdout)
2221                 return 0;
2222         else
2223                 return fclose(f);
2224 }
2225
2226 char *local_strdup(const char *source)
2227 {
2228         char *ret;
2229         FLAC__ASSERT(0 != source);
2230         if(0 == (ret = strdup(source)))
2231                 die("out of memory during strdup()");
2232         return ret;
2233 }