src/flac/main.c

   1 /* flac - Command-line FLAC encoder/decoder
   2  * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007,2008  Josh Coalson
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  17  */
  18
  19 #if HAVE_CONFIG_H
  20 #  include <config.h>
  21 #endif
  22
  23 #include <ctype.h>
  24 #include <errno.h>
  25 #include <locale.h>
  26 #include <stdarg.h>
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <time.h>
  31
  32 #if !defined _MSC_VER && !defined __MINGW32__
  33 /* unlink is in stdio.h in VC++ */
  34 #include <unistd.h> /* for unlink() */
  35 #endif
  36 #include "FLAC/all.h"
  37 #include "share/alloc.h"
  38 #include "share/grabbag.h"
  39 #include "analyze.h"
  40 #include "decode.h"
  41 #include "encode.h"
  42 #include "local_string_utils.h" /* for flac__strlcat() and flac__strlcpy() */
  43 #include "utils.h"
  44 #include "vorbiscomment.h"
  45
  46 #if defined _MSC_VER || defined __MINGW32__ || defined __EMX__
  47 #define FLAC__STRCASECMP stricmp
  48 #else
  49 #define FLAC__STRCASECMP strcasecmp
  50 #endif
  51
  52 #if 0
  53 /*[JEC] was:#if HAVE_GETOPT_LONG*/
  54 /*[JEC] see flac/include/share/getopt.h as to why the change */
  55 #  include <getopt.h>
  56 #else
  57 #  include "share/getopt.h"
  58 #endif
  59
  60 static int do_it(void);
  61
  62 static FLAC__bool init_options(void);
  63 static int parse_options(int argc, char *argv[]);
  64 static int parse_option(int short_option, const char *long_option, const char *option_argument);
  65 static void free_options(void);
  66 static void add_compression_setting_bool(compression_setting_type_t type, FLAC__bool value);
  67 static void add_compression_setting_string(compression_setting_type_t type, const char *value);
  68 static void add_compression_setting_unsigned(compression_setting_type_t type, unsigned value);
  69
  70 static int usage_error(const char *message, ...);
  71 static void short_usage(void);
  72 static void show_version(void);
  73 static void show_help(void);
  74 static void show_explain(void);
  75 static void format_mistake(const char *infilename, FileFormat wrong, FileFormat right);
  76
  77 static int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file);
  78 static int decode_file(const char *infilename);
  79
  80 static const char *get_encoded_outfilename(const char *infilename);
  81 static const char *get_decoded_outfilename(const char *infilename);
  82 static const char *get_outfilename(const char *infilename, const char *suffix);
  83
  84 static void die(const char *message);
  85 static int conditional_fclose(FILE *f);
  86 static char *local_strdup(const char *source);
  87 #ifdef _MSC_VER
  88 /* There's no strtoll() in MSVC6 so we just write a specialized one */
  89 static FLAC__int64 local__strtoll(const char *src, char **endptr);
  90 #endif
  91
  92
  93 /*
  94  * share__getopt format struct; note that for long options with no
  95  * short option equivalent we just set the 'val' field to 0.
  96  */
  97 static struct share__option long_options_[] = {
  98         /*
  99          * general options
 100          */
 101         { "help"                  , share__no_argument, 0, 'h' },
 102         { "explain"               , share__no_argument, 0, 'H' },
 103         { "version"               , share__no_argument, 0, 'v' },
 104         { "decode"                , share__no_argument, 0, 'd' },
 105         { "analyze"               , share__no_argument, 0, 'a' },
 106         { "test"                  , share__no_argument, 0, 't' },
 107         { "stdout"                , share__no_argument, 0, 'c' },
 108         { "silent"                , share__no_argument, 0, 's' },
 109         { "totally-silent"        , share__no_argument, 0, 0 },
 110         { "warnings-as-errors"    , share__no_argument, 0, 'w' },
 111         { "force"                 , share__no_argument, 0, 'f' },
 112         { "delete-input-file"     , share__no_argument, 0, 0 },
 113         { "preserve-modtime"      , share__no_argument, 0, 0 },
 114         { "keep-foreign-metadata" , share__no_argument, 0, 0 },
 115         { "output-prefix"         , share__required_argument, 0, 0 },
 116         { "output-name"           , share__required_argument, 0, 'o' },
 117         { "skip"                  , share__required_argument, 0, 0 },
 118         { "until"                 , share__required_argument, 0, 0 },
 119         { "channel-map"           , share__required_argument, 0, 0 }, /* undocumented */
 120
 121         /*
 122          * decoding options
 123          */
 124         { "decode-through-errors", share__no_argument, 0, 'F' },
 125         { "cue"                  , share__required_argument, 0, 0 },
 126         { "apply-replaygain-which-is-not-lossless", share__optional_argument, 0, 0 }, /* undocumented */
 127
 128         /*
 129          * encoding options
 130          */
 131         { "cuesheet"                  , share__required_argument, 0, 0 },
 132         { "no-cued-seekpoints"        , share__no_argument, 0, 0 },
 133         { "picture"                   , share__required_argument, 0, 0 },
 134         { "tag"                       , share__required_argument, 0, 'T' },
 135         { "tag-from-file"             , share__required_argument, 0, 0 },
 136         { "compression-level-0"       , share__no_argument, 0, '0' },
 137         { "compression-level-1"       , share__no_argument, 0, '1' },
 138         { "compression-level-2"       , share__no_argument, 0, '2' },
 139         { "compression-level-3"       , share__no_argument, 0, '3' },
 140         { "compression-level-4"       , share__no_argument, 0, '4' },
 141         { "compression-level-5"       , share__no_argument, 0, '5' },
 142         { "compression-level-6"       , share__no_argument, 0, '6' },
 143         { "compression-level-7"       , share__no_argument, 0, '7' },
 144         { "compression-level-8"       , share__no_argument, 0, '8' },
 145         { "compression-level-9"       , share__no_argument, 0, '9' },
 146         { "best"                      , share__no_argument, 0, '8' },
 147         { "fast"                      , share__no_argument, 0, '0' },
 148         { "verify"                    , share__no_argument, 0, 'V' },
 149         { "force-raw-format"          , share__no_argument, 0, 0 },
 150         { "force-aiff-format"         , share__no_argument, 0, 0 },
 151         { "force-rf64-format"         , share__no_argument, 0, 0 },
 152         { "force-wave64-format"       , share__no_argument, 0, 0 },
 153         { "lax"                       , share__no_argument, 0, 0 },
 154         { "replay-gain"               , share__no_argument, 0, 0 },
 155         { "ignore-chunk-sizes"        , share__no_argument, 0, 0 },
 156         { "sector-align"              , share__no_argument, 0, 0 }, /* DEPRECATED */
 157         { "seekpoint"                 , share__required_argument, 0, 'S' },
 158         { "padding"                   , share__required_argument, 0, 'P' },
 159 #if FLAC__HAS_OGG
 160         { "ogg"                       , share__no_argument, 0, 0 },
 161         { "serial-number"             , share__required_argument, 0, 0 },
 162 #endif
 163         { "blocksize"                 , share__required_argument, 0, 'b' },
 164         { "exhaustive-model-search"   , share__no_argument, 0, 'e' },
 165         { "max-lpc-order"             , share__required_argument, 0, 'l' },
 166         { "apodization"               , share__required_argument, 0, 'A' },
 167         { "mid-side"                  , share__no_argument, 0, 'm' },
 168         { "adaptive-mid-side"         , share__no_argument, 0, 'M' },
 169         { "qlp-coeff-precision-search", share__no_argument, 0, 'p' },
 170         { "qlp-coeff-precision"       , share__required_argument, 0, 'q' },
 171         { "rice-partition-order"      , share__required_argument, 0, 'r' },
 172         { "endian"                    , share__required_argument, 0, 0 },
 173         { "channels"                  , share__required_argument, 0, 0 },
 174         { "bps"                       , share__required_argument, 0, 0 },
 175         { "sample-rate"               , share__required_argument, 0, 0 },
 176         { "sign"                      , share__required_argument, 0, 0 },
 177         { "input-size"                , share__required_argument, 0, 0 },
 178
 179         /*
 180          * analysis options
 181          */
 182         { "residual-gnuplot", share__no_argument, 0, 0 },
 183         { "residual-text", share__no_argument, 0, 0 },
 184
 185         /*
 186          * negatives
 187          */
 188         { "no-preserve-modtime"       , share__no_argument, 0, 0 },
 189         { "no-decode-through-errors"  , share__no_argument, 0, 0 },
 190         { "no-silent"                 , share__no_argument, 0, 0 },
 191         { "no-force"                  , share__no_argument, 0, 0 },
 192         { "no-seektable"              , share__no_argument, 0, 0 },
 193         { "no-delete-input-file"      , share__no_argument, 0, 0 },
 194         { "no-keep-foreign-metadata"  , share__no_argument, 0, 0 },
 195         { "no-replay-gain"            , share__no_argument, 0, 0 },
 196         { "no-ignore-chunk-sizes"     , share__no_argument, 0, 0 },
 197         { "no-sector-align"           , share__no_argument, 0, 0 }, /* DEPRECATED */
 198         { "no-utf8-convert"           , share__no_argument, 0, 0 },
 199         { "no-lax"                    , share__no_argument, 0, 0 },
 200 #if FLAC__HAS_OGG
 201         { "no-ogg"                    , share__no_argument, 0, 0 },
 202 #endif
 203         { "no-exhaustive-model-search", share__no_argument, 0, 0 },
 204         { "no-mid-side"               , share__no_argument, 0, 0 },
 205         { "no-adaptive-mid-side"      , share__no_argument, 0, 0 },
 206         { "no-qlp-coeff-prec-search"  , share__no_argument, 0, 0 },
 207         { "no-padding"                , share__no_argument, 0, 0 },
 208         { "no-verify"                 , share__no_argument, 0, 0 },
 209         { "no-warnings-as-errors"     , share__no_argument, 0, 0 },
 210         { "no-residual-gnuplot"       , share__no_argument, 0, 0 },
 211         { "no-residual-text"          , share__no_argument, 0, 0 },
 212         /*
 213          * undocumented debugging options for the test suite
 214          */
 215         { "disable-constant-subframes", share__no_argument, 0, 0 },
 216         { "disable-fixed-subframes"   , share__no_argument, 0, 0 },
 217         { "disable-verbatim-subframes", share__no_argument, 0, 0 },
 218         { "no-md5-sum"                , share__no_argument, 0, 0 },
 219
 220         {0, 0, 0, 0}
 221 };
 222
 223
 224 /*
 225  * global to hold command-line option values
 226  */
 227
 228 static struct {
 229         FLAC__bool show_help;
 230         FLAC__bool show_explain;
 231         FLAC__bool show_version;
 232         FLAC__bool mode_decode;
 233         FLAC__bool verify;
 234         FLAC__bool treat_warnings_as_errors;
 235         FLAC__bool force_file_overwrite;
 236         FLAC__bool continue_through_decode_errors;
 237         replaygain_synthesis_spec_t replaygain_synthesis_spec;
 238         FLAC__bool lax;
 239         FLAC__bool test_only;
 240         FLAC__bool analyze;
 241         FLAC__bool use_ogg;
 242         FLAC__bool has_serial_number; /* true iff --serial-number was used */
 243         long serial_number; /* this is the Ogg serial number and is unused for native FLAC */
 244         FLAC__bool force_to_stdout;
 245         FLAC__bool force_raw_format;
 246         FLAC__bool force_aiff_format;
 247         FLAC__bool force_rf64_format;
 248         FLAC__bool force_wave64_format;
 249         FLAC__bool delete_input;
 250         FLAC__bool preserve_modtime;
 251         FLAC__bool keep_foreign_metadata;
 252         FLAC__bool replay_gain;
 253         FLAC__bool ignore_chunk_sizes;
 254         FLAC__bool sector_align;
 255         FLAC__bool utf8_convert; /* true by default, to convert tag strings from locale to utf-8, false if --no-utf8-convert used */
 256         const char *cmdline_forced_outfilename;
 257         const char *output_prefix;
 258         analysis_options aopts;
 259         int padding; /* -1 => no -P options were given, 0 => -P- was given, else -P value */
 260         size_t num_compression_settings;
 261         compression_setting_t compression_settings[64]; /* bad MAGIC NUMBER but buffer overflow is checked */
 262         const char *skip_specification;
 263         const char *until_specification;
 264         const char *cue_specification;
 265         int format_is_big_endian;
 266         int format_is_unsigned_samples;
 267         int format_channels;
 268         int format_bps;
 269         int format_sample_rate;
 270         off_t format_input_size;
 271         char requested_seek_points[5000]; /* bad MAGIC NUMBER but buffer overflow is checked */
 272         int num_requested_seek_points; /* -1 => no -S options were given, 0 => -S- was given */
 273         const char *cuesheet_filename;
 274         FLAC__bool cued_seekpoints;
 275         FLAC__bool channel_map_none; /* --channel-map=none specified, eventually will expand to take actual channel map */
 276
 277         unsigned num_files;
 278         char **filenames;
 279
 280         FLAC__StreamMetadata *vorbis_comment;
 281         FLAC__StreamMetadata *pictures[64];
 282         unsigned num_pictures;
 283
 284         struct {
 285                 FLAC__bool disable_constant_subframes;
 286                 FLAC__bool disable_fixed_subframes;
 287                 FLAC__bool disable_verbatim_subframes;
 288                 FLAC__bool do_md5;
 289         } debug;
 290 } option_values;
 291
 292
 293 /*
 294  * miscellaneous globals
 295  */
 296
 297 static FLAC__int32 align_reservoir_0[588], align_reservoir_1[588]; /* for carrying over samples from --sector-align */ /* DEPRECATED */
 298 static FLAC__int32 *align_reservoir[2] = { align_reservoir_0, align_reservoir_1 };
 299 static unsigned align_reservoir_samples = 0; /* 0 .. 587 */
 300
 301
 302 int main(int argc, char *argv[])
 303 {
 304         int retval = 0;
 305
 306 #ifdef __EMX__
 307         _response(&argc, &argv);
 308         _wildcard(&argc, &argv);
 309 #endif
 310
 311         srand((unsigned)time(0));
 312         setlocale(LC_ALL, "");
 313         if(!init_options()) {
 314                 flac__utils_printf(stderr, 1, "ERROR: allocating memory\n");
 315                 retval = 1;
 316         }
 317         else {
 318                 if((retval = parse_options(argc, argv)) == 0)
 319                         retval = do_it();
 320         }
 321
 322         free_options();
 323
 324         return retval;
 325 }
 326
 327 int do_it(void)
 328 {
 329         int retval = 0;
 330
 331         if(option_values.show_version) {
 332                 show_version();
 333                 return 0;
 334         }
 335         else if(option_values.show_explain) {
 336                 show_explain();
 337                 return 0;
 338         }
 339         else if(option_values.show_help) {
 340                 show_help();
 341                 return 0;
 342         }
 343         else {
 344                 if(option_values.num_files == 0) {
 345                         if(flac__utils_verbosity_ >= 1)
 346                                 short_usage();
 347                         return 0;
 348                 }
 349
 350                 /*
 351                  * tweak options; validate the values
 352                  */
 353                 if(!option_values.mode_decode) {
 354                         if(0 != option_values.cue_specification)
 355                                 return usage_error("ERROR: --cue is not allowed in test mode\n");
 356                 }
 357                 else {
 358                         if(option_values.test_only) {
 359                                 if(0 != option_values.skip_specification)
 360                                         return usage_error("ERROR: --skip is not allowed in test mode\n");
 361                                 if(0 != option_values.until_specification)
 362                                         return usage_error("ERROR: --until is not allowed in test mode\n");
 363                                 if(0 != option_values.cue_specification)
 364                                         return usage_error("ERROR: --cue is not allowed in test mode\n");
 365                                 if(0 != option_values.analyze)
 366                                         return usage_error("ERROR: analysis mode (-a/--analyze) and test mode (-t/--test) cannot be used together\n");
 367                         }
 368                 }
 369
 370                 if(0 != option_values.cue_specification && (0 != option_values.skip_specification || 0 != option_values.until_specification))
 371                         return usage_error("ERROR: --cue may not be combined with --skip or --until\n");
 372
 373                 if(option_values.format_channels >= 0) {
 374                         if(option_values.format_channels == 0 || (unsigned)option_values.format_channels > FLAC__MAX_CHANNELS)
 375                                 return usage_error("ERROR: invalid number of channels '%u', must be > 0 and <= %u\n", option_values.format_channels, FLAC__MAX_CHANNELS);
 376                 }
 377                 if(option_values.format_bps >= 0) {
 378                         if(option_values.format_bps != 8 && option_values.format_bps != 16 && option_values.format_bps != 24)
 379                                 return usage_error("ERROR: invalid bits per sample '%u' (must be 8/16/24)\n", option_values.format_bps);
 380                 }
 381                 if(option_values.format_sample_rate >= 0) {
 382                         if(!FLAC__format_sample_rate_is_valid(option_values.format_sample_rate))
 383                                 return usage_error("ERROR: invalid sample rate '%u', must be > 0 and <= %u\n", option_values.format_sample_rate, FLAC__MAX_SAMPLE_RATE);
 384                 }
 385                 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)
 386                         return usage_error("ERROR: only one of --force-raw-format/--force-aiff-format/--force-rf64-format/--force-wave64-format allowed\n");
 387                 if(option_values.mode_decode) {
 388                         if(!option_values.force_raw_format) {
 389                                 if(option_values.format_is_big_endian >= 0)
 390                                         return usage_error("ERROR: --endian only allowed with --force-raw-format\n");
 391                                 if(option_values.format_is_unsigned_samples >= 0)
 392                                         return usage_error("ERROR: --sign only allowed with --force-raw-format\n");
 393                         }
 394                         if(option_values.format_channels >= 0)
 395                                 return usage_error("ERROR: --channels not allowed with --decode\n");
 396                         if(option_values.format_bps >= 0)
 397                                 return usage_error("ERROR: --bps not allowed with --decode\n");
 398                         if(option_values.format_sample_rate >= 0)
 399                                 return usage_error("ERROR: --sample-rate not allowed with --decode\n");
 400                 }
 401
 402                 if(option_values.ignore_chunk_sizes) {
 403                         if(option_values.mode_decode)
 404                                 return usage_error("ERROR: --ignore-chunk-sizes only allowed for encoding\n");
 405                         if(0 != option_values.sector_align)
 406                                 return usage_error("ERROR: --ignore-chunk-sizes not allowed with --sector-align\n");
 407                         if(0 != option_values.until_specification)
 408                                 return usage_error("ERROR: --ignore-chunk-sizes not allowed with --until\n");
 409                         if(0 != option_values.cue_specification)
 410                                 return usage_error("ERROR: --ignore-chunk-sizes not allowed with --cue\n");
 411                         if(0 != option_values.cuesheet_filename)
 412                                 return usage_error("ERROR: --ignore-chunk-sizes not allowed with --cuesheet\n");
 413                 }
 414                 if(option_values.sector_align) {
 415                         if(option_values.mode_decode)
 416                                 return usage_error("ERROR: --sector-align only allowed for encoding\n");
 417                         if(0 != option_values.skip_specification)
 418                                 return usage_error("ERROR: --sector-align not allowed with --skip\n");
 419                         if(0 != option_values.until_specification)
 420                                 return usage_error("ERROR: --sector-align not allowed with --until\n");
 421                         if(0 != option_values.cue_specification)
 422                                 return usage_error("ERROR: --sector-align not allowed with --cue\n");
 423                         if(option_values.format_channels >= 0 && option_values.format_channels != 2)
 424                                 return usage_error("ERROR: --sector-align can only be done with stereo input\n");
 425                         if(option_values.format_bps >= 0 && option_values.format_bps != 16)
 426                                 return usage_error("ERROR: --sector-align can only be done with 16-bit samples\n");
 427                         if(option_values.format_sample_rate >= 0 && option_values.format_sample_rate != 44100)
 428                                 return usage_error("ERROR: --sector-align can only be done with a sample rate of 44100\n");
 429                 }
 430                 if(option_values.replay_gain) {
 431                         if(option_values.force_to_stdout)
 432                                 return usage_error("ERROR: --replay-gain not allowed with -c/--stdout\n");
 433                         if(option_values.mode_decode)
 434                                 return usage_error("ERROR: --replay-gain only allowed for encoding\n");
 435                         if(option_values.format_channels > 2)
 436                                 return usage_error("ERROR: --replay-gain can only be done with mono/stereo input\n");
 437                         if(option_values.format_sample_rate >= 0 && !grabbag__replaygain_is_valid_sample_frequency(option_values.format_sample_rate))
 438                                 return usage_error("ERROR: invalid sample rate used with --replay-gain\n");
 439                         /*
 440                          * We want to reserve padding space for the ReplayGain
 441                          * tags that we will set later, to avoid rewriting the
 442                          * whole file.
 443                          */
 444                         if(
 445                                 (option_values.padding >= 0 && option_values.padding < (int)GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED) ||
 446                                 (option_values.padding < 0 && FLAC_ENCODE__DEFAULT_PADDING < (int)GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED)
 447                         ) {
 448                                 flac__utils_printf(stderr, 1, "NOTE: --replay-gain may leave a small PADDING block even with --no-padding\n");
 449                                 option_values.padding = GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
 450                         }
 451                         else {
 452                                 option_values.padding += GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
 453                         }
 454                 }
 455                 if(option_values.num_files > 1 && option_values.cmdline_forced_outfilename) {
 456                         return usage_error("ERROR: -o/--output-name cannot be used with multiple files\n");
 457                 }
 458                 if(option_values.cmdline_forced_outfilename && option_values.output_prefix) {
 459                         return usage_error("ERROR: --output-prefix conflicts with -o/--output-name\n");
 460                 }
 461                 if(!option_values.mode_decode && 0 != option_values.cuesheet_filename && option_values.num_files > 1) {
 462                         return usage_error("ERROR: --cuesheet cannot be used when encoding multiple files\n");
 463                 }
 464                 if(option_values.keep_foreign_metadata) {
 465                         /* we're not going to try and support the re-creation of broken WAVE files */
 466                         if(option_values.ignore_chunk_sizes)
 467                                 return usage_error("ERROR: using --keep-foreign-metadata cannot be used with --ignore-chunk-sizes\n");
 468                         if(option_values.test_only)
 469                                 return usage_error("ERROR: --keep-foreign-metadata is not allowed in test mode\n");
 470                         if(option_values.analyze)
 471                                 return usage_error("ERROR: --keep-foreign-metadata is not allowed in analyis mode\n");
 472                         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");
 473                 }
 474         }
 475
 476         flac__utils_printf(stderr, 2, "\n");
 477         flac__utils_printf(stderr, 2, "flac %s, Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007,2008  Josh Coalson\n", FLAC__VERSION_STRING);
 478         flac__utils_printf(stderr, 2, "flac comes with ABSOLUTELY NO WARRANTY.  This is free software, and you are\n");
 479         flac__utils_printf(stderr, 2, "welcome to redistribute it under certain conditions.  Type `flac' for details.\n\n");
 480
 481         if(option_values.mode_decode) {
 482                 FLAC__bool first = true;
 483
 484                 if(option_values.num_files == 0) {
 485                         retval = decode_file("-");
 486                 }
 487                 else {
 488                         unsigned i;
 489                         if(option_values.num_files > 1)
 490                                 option_values.cmdline_forced_outfilename = 0;
 491                         for(i = 0, retval = 0; i < option_values.num_files; i++) {
 492                                 if(0 == strcmp(option_values.filenames[i], "-") && !first)
 493                                         continue;
 494                                 retval |= decode_file(option_values.filenames[i]);
 495                                 first = false;
 496                         }
 497                 }
 498         }
 499         else { /* encode */
 500                 FLAC__bool first = true;
 501
 502                 if(option_values.ignore_chunk_sizes)
 503                         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");
 504
 505                 if(option_values.num_files == 0) {
 506                         retval = encode_file("-", first, true);
 507                 }
 508                 else {
 509                         unsigned i;
 510                         if(option_values.num_files > 1)
 511                                 option_values.cmdline_forced_outfilename = 0;
 512                         for(i = 0, retval = 0; i < option_values.num_files; i++) {
 513                                 if(0 == strcmp(option_values.filenames[i], "-") && !first)
 514                                         continue;
 515                                 retval |= encode_file(option_values.filenames[i], first, i == (option_values.num_files-1));
 516                                 first = false;
 517                         }
 518                         if(option_values.replay_gain && retval == 0) {
 519                                 float album_gain, album_peak;
 520                                 grabbag__replaygain_get_album(&album_gain, &album_peak);
 521                                 for(i = 0; i < option_values.num_files; i++) {
 522                                         const char *error, *outfilename = get_encoded_outfilename(option_values.filenames[i]);
 523                                         if(0 == outfilename) {
 524                                                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", option_values.filenames[i]);
 525                                                 return 1;
 526                                         }
 527                                         if(0 == strcmp(option_values.filenames[i], "-")) {
 528                                                 FLAC__ASSERT(0);
 529                                                 /* double protection */
 530                                                 flac__utils_printf(stderr, 1, "internal error\n");
 531                                                 return 2;
 532                                         }
 533                                         if(0 != (error = grabbag__replaygain_store_to_file_album(outfilename, album_gain, album_peak, option_values.preserve_modtime))) {
 534                                                 flac__utils_printf(stderr, 1, "%s: ERROR writing ReplayGain album tags (%s)\n", outfilename, error);
 535                                                 retval = 1;
 536                                         }
 537                                 }
 538                         }
 539                 }
 540         }
 541
 542         return retval;
 543 }
 544
 545 FLAC__bool init_options(void)
 546 {
 547         option_values.show_help = false;
 548         option_values.show_explain = false;
 549         option_values.mode_decode = false;
 550         option_values.verify = false;
 551         option_values.treat_warnings_as_errors = false;
 552         option_values.force_file_overwrite = false;
 553         option_values.continue_through_decode_errors = false;
 554         option_values.replaygain_synthesis_spec.apply = false;
 555         option_values.replaygain_synthesis_spec.use_album_gain = true;
 556         option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__HARD;
 557         option_values.replaygain_synthesis_spec.noise_shaping = NOISE_SHAPING_LOW;
 558         option_values.replaygain_synthesis_spec.preamp = 0.0;
 559         option_values.lax = false;
 560         option_values.test_only = false;
 561         option_values.analyze = false;
 562         option_values.use_ogg = false;
 563         option_values.has_serial_number = false;
 564         option_values.serial_number = 0;
 565         option_values.force_to_stdout = false;
 566         option_values.force_raw_format = false;
 567         option_values.force_aiff_format = false;
 568         option_values.force_rf64_format = false;
 569         option_values.force_wave64_format = false;
 570         option_values.delete_input = false;
 571         option_values.preserve_modtime = true;
 572         option_values.keep_foreign_metadata = false;
 573         option_values.replay_gain = false;
 574         option_values.ignore_chunk_sizes = false;
 575         option_values.sector_align = false;
 576         option_values.utf8_convert = true;
 577         option_values.cmdline_forced_outfilename = 0;
 578         option_values.output_prefix = 0;
 579         option_values.aopts.do_residual_text = false;
 580         option_values.aopts.do_residual_gnuplot = false;
 581         option_values.padding = -1;
 582         option_values.num_compression_settings = 1;
 583         option_values.compression_settings[0].type = CST_COMPRESSION_LEVEL;
 584         option_values.compression_settings[0].value.t_unsigned = 5;
 585         option_values.skip_specification = 0;
 586         option_values.until_specification = 0;
 587         option_values.cue_specification = 0;
 588         option_values.format_is_big_endian = -1;
 589         option_values.format_is_unsigned_samples = -1;
 590         option_values.format_channels = -1;
 591         option_values.format_bps = -1;
 592         option_values.format_sample_rate = -1;
 593         option_values.format_input_size = (off_t)(-1);
 594         option_values.requested_seek_points[0] = '\0';
 595         option_values.num_requested_seek_points = -1;
 596         option_values.cuesheet_filename = 0;
 597         option_values.cued_seekpoints = true;
 598         option_values.channel_map_none = false;
 599
 600         option_values.num_files = 0;
 601         option_values.filenames = 0;
 602
 603         if(0 == (option_values.vorbis_comment = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT)))
 604                 return false;
 605         option_values.num_pictures = 0;
 606
 607         option_values.debug.disable_constant_subframes = false;
 608         option_values.debug.disable_fixed_subframes = false;
 609         option_values.debug.disable_verbatim_subframes = false;
 610         option_values.debug.do_md5 = true;
 611
 612         return true;
 613 }
 614
 615 int parse_options(int argc, char *argv[])
 616 {
 617         int short_option;
 618         int option_index = 1;
 619         FLAC__bool had_error = false;
 620         const char *short_opts = "0123456789aA:b:cdefFhHl:mMo:pP:q:r:sS:tT:vVw";
 621
 622         while ((short_option = share__getopt_long(argc, argv, short_opts, long_options_, &option_index)) != -1) {
 623                 switch (short_option) {
 624                         case 0: /* long option with no equivalent short option */
 625                                 had_error |= (parse_option(short_option, long_options_[option_index].name, share__optarg) != 0);
 626                                 break;
 627                         case '?':
 628                         case ':':
 629                                 had_error = true;
 630                                 break;
 631                         default: /* short option */
 632                                 had_error |= (parse_option(short_option, 0, share__optarg) != 0);
 633                                 break;
 634                 }
 635         }
 636
 637         if(had_error) {
 638                 return 1;
 639         }
 640
 641         FLAC__ASSERT(share__optind <= argc);
 642
 643         option_values.num_files = argc - share__optind;
 644
 645         if(option_values.num_files > 0) {
 646                 unsigned i = 0;
 647                 if(0 == (option_values.filenames = (char**)malloc(sizeof(char*) * option_values.num_files)))
 648                         die("out of memory allocating space for file names list");
 649                 while(share__optind < argc)
 650                         option_values.filenames[i++] = local_strdup(argv[share__optind++]);
 651         }
 652
 653         return 0;
 654 }
 655
 656 int parse_option(int short_option, const char *long_option, const char *option_argument)
 657 {
 658         const char *violation;
 659         char *p;
 660         int i;
 661
 662         if(short_option == 0) {
 663                 FLAC__ASSERT(0 != long_option);
 664                 if(0 == strcmp(long_option, "totally-silent")) {
 665                         flac__utils_verbosity_ = 0;
 666                 }
 667                 else if(0 == strcmp(long_option, "delete-input-file")) {
 668                         option_values.delete_input = true;
 669                 }
 670                 else if(0 == strcmp(long_option, "preserve-modtime")) {
 671                         option_values.preserve_modtime = true;
 672                 }
 673                 else if(0 == strcmp(long_option, "keep-foreign-metadata")) {
 674                         option_values.keep_foreign_metadata = true;
 675                 }
 676                 else if(0 == strcmp(long_option, "output-prefix")) {
 677                         FLAC__ASSERT(0 != option_argument);
 678                         option_values.output_prefix = option_argument;
 679                 }
 680                 else if(0 == strcmp(long_option, "skip")) {
 681                         FLAC__ASSERT(0 != option_argument);
 682                         option_values.skip_specification = option_argument;
 683                 }
 684                 else if(0 == strcmp(long_option, "until")) {
 685                         FLAC__ASSERT(0 != option_argument);
 686                         option_values.until_specification = option_argument;
 687                 }
 688                 else if(0 == strcmp(long_option, "input-size")) {
 689                         FLAC__ASSERT(0 != option_argument);
 690                         {
 691                                 char *end;
 692 #ifdef _MSC_VER
 693                                 FLAC__int64 i;
 694                                 i = local__strtoll(option_argument, &end);
 695 #else
 696                                 long long i;
 697                                 i = strtoll(option_argument, &end, 10);
 698 #endif
 699                                 if(0 == strlen(option_argument) || *end)
 700                                         return usage_error("ERROR: --%s must be a number\n", long_option);
 701                                 option_values.format_input_size = (off_t)i;
 702                                 if(option_values.format_input_size != i) /* check if off_t is smaller than long long */
 703                                         return usage_error("ERROR: --%s too large; this build of flac does not support filesizes over 2GB\n", long_option);
 704                                 if(option_values.format_input_size <= 0)
 705                                         return usage_error("ERROR: --%s must be > 0\n", long_option);
 706                         }
 707                 }
 708                 else if(0 == strcmp(long_option, "cue")) {
 709                         FLAC__ASSERT(0 != option_argument);
 710                         option_values.cue_specification = option_argument;
 711                 }
 712                 else if(0 == strcmp(long_option, "apply-replaygain-which-is-not-lossless")) {
 713                         option_values.replaygain_synthesis_spec.apply = true;
 714                         if (0 != option_argument) {
 715                                 char *p;
 716                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__NONE;
 717                                 option_values.replaygain_synthesis_spec.noise_shaping = NOISE_SHAPING_NONE;
 718                                 option_values.replaygain_synthesis_spec.preamp = strtod(option_argument, &p);
 719                                 for ( ; *p; p++) {
 720                                         if (*p == 'a')
 721                                                 option_values.replaygain_synthesis_spec.use_album_gain = true;
 722                                         else if (*p == 't')
 723                                                 option_values.replaygain_synthesis_spec.use_album_gain = false;
 724                                         else if (*p == 'l')
 725                                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__PEAK;
 726                                         else if (*p == 'L')
 727                                                 option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__HARD;
 728                                         else if (*p == 'n' && p[1] >= '0' && p[1] <= '3') {
 729                                                 option_values.replaygain_synthesis_spec.noise_shaping = p[1] - '0';
 730                                                 p++;
 731                                         }
 732                                         else
 733                                                 return usage_error("ERROR: bad specification string \"%s\" for --%s\n", option_argument, long_option);
 734                                 }
 735                         }
 736                 }
 737                 else if(0 == strcmp(long_option, "channel-map")) {
 738                         if (0 == option_argument || strcmp(option_argument, "none"))
 739                                 return usage_error("ERROR: only --channel-map=none currently supported\n");
 740                         option_values.channel_map_none = true;
 741                 }
 742                 else if(0 == strcmp(long_option, "cuesheet")) {
 743                         FLAC__ASSERT(0 != option_argument);
 744                         option_values.cuesheet_filename = option_argument;
 745                 }
 746                 else if(0 == strcmp(long_option, "picture")) {
 747                         const unsigned max_pictures = sizeof(option_values.pictures)/sizeof(option_values.pictures[0]);
 748                         FLAC__ASSERT(0 != option_argument);
 749                         if(option_values.num_pictures >= max_pictures)
 750                                 return usage_error("ERROR: too many --picture arguments, only %u allowed\n", max_pictures);
 751                         if(0 == (option_values.pictures[option_values.num_pictures] = grabbag__picture_parse_specification(option_argument, &violation)))
 752                                 return usage_error("ERROR: (--picture) %s\n", violation);
 753                         option_values.num_pictures++;
 754                 }
 755                 else if(0 == strcmp(long_option, "tag-from-file")) {
 756                         FLAC__ASSERT(0 != option_argument);
 757                         if(!flac__vorbiscomment_add(option_values.vorbis_comment, option_argument, /*value_from_file=*/true, /*raw=*/!option_values.utf8_convert, &violation))
 758                                 return usage_error("ERROR: (--tag-from-file) %s\n", violation);
 759                 }
 760                 else if(0 == strcmp(long_option, "no-cued-seekpoints")) {
 761                         option_values.cued_seekpoints = false;
 762                 }
 763                 else if(0 == strcmp(long_option, "force-raw-format")) {
 764                         option_values.force_raw_format = true;
 765                 }
 766                 else if(0 == strcmp(long_option, "force-aiff-format")) {
 767                         option_values.force_aiff_format = true;
 768                 }
 769                 else if(0 == strcmp(long_option, "force-rf64-format")) {
 770                         option_values.force_rf64_format = true;
 771                 }
 772                 else if(0 == strcmp(long_option, "force-wave64-format")) {
 773                         option_values.force_wave64_format = true;
 774                 }
 775                 else if(0 == strcmp(long_option, "lax")) {
 776                         option_values.lax = true;
 777                 }
 778                 else if(0 == strcmp(long_option, "replay-gain")) {
 779                         option_values.replay_gain = true;
 780                 }
 781                 else if(0 == strcmp(long_option, "ignore-chunk-sizes")) {
 782                         option_values.ignore_chunk_sizes = true;
 783                 }
 784                 else if(0 == strcmp(long_option, "sector-align")) {
 785                         flac__utils_printf(stderr, 1, "WARNING: --sector-align is DEPRECATED and may not exist in future versions of flac.\n");
 786                         flac__utils_printf(stderr, 1, "         shntool provides similar functionality\n");
 787                         option_values.sector_align = true;
 788                 }
 789 #if FLAC__HAS_OGG
 790                 else if(0 == strcmp(long_option, "ogg")) {
 791                         option_values.use_ogg = true;
 792                 }
 793                 else if(0 == strcmp(long_option, "serial-number")) {
 794                         option_values.has_serial_number = true;
 795                         option_values.serial_number = atol(option_argument);
 796                 }
 797 #endif
 798                 else if(0 == strcmp(long_option, "endian")) {
 799                         FLAC__ASSERT(0 != option_argument);
 800                         if(0 == strncmp(option_argument, "big", strlen(option_argument)))
 801                                 option_values.format_is_big_endian = true;
 802                         else if(0 == strncmp(option_argument, "little", strlen(option_argument)))
 803                                 option_values.format_is_big_endian = false;
 804                         else
 805                                 return usage_error("ERROR: argument to --endian must be \"big\" or \"little\"\n");
 806                 }
 807                 else if(0 == strcmp(long_option, "channels")) {
 808                         FLAC__ASSERT(0 != option_argument);
 809                         option_values.format_channels = atoi(option_argument);
 810                 }
 811                 else if(0 == strcmp(long_option, "bps")) {
 812                         FLAC__ASSERT(0 != option_argument);
 813                         option_values.format_bps = atoi(option_argument);
 814                 }
 815                 else if(0 == strcmp(long_option, "sample-rate")) {
 816                         FLAC__ASSERT(0 != option_argument);
 817                         option_values.format_sample_rate = atoi(option_argument);
 818                 }
 819                 else if(0 == strcmp(long_option, "sign")) {
 820                         FLAC__ASSERT(0 != option_argument);
 821                         if(0 == strncmp(option_argument, "signed", strlen(option_argument)))
 822                                 option_values.format_is_unsigned_samples = false;
 823                         else if(0 == strncmp(option_argument, "unsigned", strlen(option_argument)))
 824                                 option_values.format_is_unsigned_samples = true;
 825                         else
 826                                 return usage_error("ERROR: argument to --sign must be \"signed\" or \"unsigned\"\n");
 827                 }
 828                 else if(0 == strcmp(long_option, "residual-gnuplot")) {
 829                         option_values.aopts.do_residual_gnuplot = true;
 830                 }
 831                 else if(0 == strcmp(long_option, "residual-text")) {
 832                         option_values.aopts.do_residual_text = true;
 833                 }
 834                 /*
 835                  * negatives
 836                  */
 837                 else if(0 == strcmp(long_option, "no-preserve-modtime")) {
 838                         option_values.preserve_modtime = false;
 839                 }
 840                 else if(0 == strcmp(long_option, "no-decode-through-errors")) {
 841                         option_values.continue_through_decode_errors = false;
 842                 }
 843                 else if(0 == strcmp(long_option, "no-silent")) {
 844                         flac__utils_verbosity_ = 2;
 845                 }
 846                 else if(0 == strcmp(long_option, "no-force")) {
 847                         option_values.force_file_overwrite = false;
 848                 }
 849                 else if(0 == strcmp(long_option, "no-seektable")) {
 850                         option_values.num_requested_seek_points = 0;
 851                         option_values.requested_seek_points[0] = '\0';
 852                 }
 853                 else if(0 == strcmp(long_option, "no-delete-input-file")) {
 854                         option_values.delete_input = false;
 855                 }
 856                 else if(0 == strcmp(long_option, "no-keep-foreign-metadata")) {
 857                         option_values.keep_foreign_metadata = false;
 858                 }
 859                 else if(0 == strcmp(long_option, "no-replay-gain")) {
 860                         option_values.replay_gain = false;
 861                 }
 862                 else if(0 == strcmp(long_option, "no-ignore-chunk-sizes")) {
 863                         option_values.ignore_chunk_sizes = false;
 864                 }
 865                 else if(0 == strcmp(long_option, "no-sector-align")) {
 866                         option_values.sector_align = false;
 867                 }
 868                 else if(0 == strcmp(long_option, "no-utf8-convert")) {
 869                         option_values.utf8_convert = false;
 870                 }
 871                 else if(0 == strcmp(long_option, "no-lax")) {
 872                         option_values.lax = false;
 873                 }
 874 #if FLAC__HAS_OGG
 875                 else if(0 == strcmp(long_option, "no-ogg")) {
 876                         option_values.use_ogg = false;
 877                 }
 878 #endif
 879                 else if(0 == strcmp(long_option, "no-exhaustive-model-search")) {
 880                         add_compression_setting_bool(CST_DO_EXHAUSTIVE_MODEL_SEARCH, false);
 881                 }
 882                 else if(0 == strcmp(long_option, "no-mid-side")) {
 883                         add_compression_setting_bool(CST_DO_MID_SIDE, false);
 884                         add_compression_setting_bool(CST_LOOSE_MID_SIDE, false);
 885                 }
 886                 else if(0 == strcmp(long_option, "no-adaptive-mid-side")) {
 887                         add_compression_setting_bool(CST_DO_MID_SIDE, false);
 888                         add_compression_setting_bool(CST_LOOSE_MID_SIDE, false);
 889                 }
 890                 else if(0 == strcmp(long_option, "no-qlp-coeff-prec-search")) {
 891                         add_compression_setting_bool(CST_DO_QLP_COEFF_PREC_SEARCH, false);
 892                 }
 893                 else if(0 == strcmp(long_option, "no-padding")) {
 894                         option_values.padding = 0;
 895                 }
 896                 else if(0 == strcmp(long_option, "no-verify")) {
 897                         option_values.verify = false;
 898                 }
 899                 else if(0 == strcmp(long_option, "no-warnings-as-errors")) {
 900                         option_values.treat_warnings_as_errors = false;
 901                 }
 902                 else if(0 == strcmp(long_option, "no-residual-gnuplot")) {
 903                         option_values.aopts.do_residual_gnuplot = false;
 904                 }
 905                 else if(0 == strcmp(long_option, "no-residual-text")) {
 906                         option_values.aopts.do_residual_text = false;
 907                 }
 908                 else if(0 == strcmp(long_option, "disable-constant-subframes")) {
 909                         option_values.debug.disable_constant_subframes = true;
 910                 }
 911                 else if(0 == strcmp(long_option, "disable-fixed-subframes")) {
 912                         option_values.debug.disable_fixed_subframes = true;
 913                 }
 914                 else if(0 == strcmp(long_option, "disable-verbatim-subframes")) {
 915                         option_values.debug.disable_verbatim_subframes = true;
 916                 }
 917                 else if(0 == strcmp(long_option, "no-md5-sum")) {
 918                         option_values.debug.do_md5 = false;
 919                 }
 920         }
 921         else {
 922                 switch(short_option) {
 923                         case 'h':
 924                                 option_values.show_help = true;
 925                                 break;
 926                         case 'H':
 927                                 option_values.show_explain = true;
 928                                 break;
 929                         case 'v':
 930                                 option_values.show_version = true;
 931                                 break;
 932                         case 'd':
 933                                 option_values.mode_decode = true;
 934                                 break;
 935                         case 'a':
 936                                 option_values.mode_decode = true;
 937                                 option_values.analyze = true;
 938                                 break;
 939                         case 't':
 940                                 option_values.mode_decode = true;
 941                                 option_values.test_only = true;
 942                                 break;
 943                         case 'c':
 944                                 option_values.force_to_stdout = true;
 945                                 break;
 946                         case 's':
 947                                 flac__utils_verbosity_ = 1;
 948                                 break;
 949                         case 'f':
 950                                 option_values.force_file_overwrite = true;
 951                                 break;
 952                         case 'o':
 953                                 FLAC__ASSERT(0 != option_argument);
 954                                 option_values.cmdline_forced_outfilename = option_argument;
 955                                 break;
 956                         case 'F':
 957                                 option_values.continue_through_decode_errors = true;
 958                                 break;
 959                         case 'T':
 960                                 FLAC__ASSERT(0 != option_argument);
 961                                 if(!flac__vorbiscomment_add(option_values.vorbis_comment, option_argument, /*value_from_file=*/false, /*raw=*/!option_values.utf8_convert, &violation))
 962                                         return usage_error("ERROR: (-T/--tag) %s\n", violation);
 963                                 break;
 964                         case '0':
 965                         case '1':
 966                         case '2':
 967                         case '3':
 968                         case '4':
 969                         case '5':
 970                         case '6':
 971                         case '7':
 972                         case '8':
 973                                 add_compression_setting_unsigned(CST_COMPRESSION_LEVEL, short_option-'0');
 974                                 break;
 975                         case '9':
 976                                 return usage_error("ERROR: compression level '9' is reserved\n");
 977                         case 'V':
 978                                 option_values.verify = true;
 979                                 break;
 980                         case 'w':
 981                                 option_values.treat_warnings_as_errors = true;
 982                                 break;
 983                         case 'S':
 984                                 FLAC__ASSERT(0 != option_argument);
 985                                 if(0 == strcmp(option_argument, "-")) {
 986                                         option_values.num_requested_seek_points = 0;
 987                                         option_values.requested_seek_points[0] = '\0';
 988                                 }
 989                                 else {
 990                                         if(option_values.num_requested_seek_points < 0)
 991                                                 option_values.num_requested_seek_points = 0;
 992                                         option_values.num_requested_seek_points++;
 993                                         if(strlen(option_values.requested_seek_points)+strlen(option_argument)+2 >= sizeof(option_values.requested_seek_points)) {
 994                                                 return usage_error("ERROR: too many seekpoints requested\n");
 995                                         }
 996                                         else {
 997                                                 strcat(option_values.requested_seek_points, option_argument);
 998                                                 strcat(option_values.requested_seek_points, ";");
 999                                         }
1000                                 }
1001                                 break;
1002                         case 'P':
1003                                 FLAC__ASSERT(0 != option_argument);
1004                                 option_values.padding = atoi(option_argument);
1005                                 if(option_values.padding < 0)
1006                                         return usage_error("ERROR: argument to -%c must be >= 0; for no padding use -%c-\n", short_option, short_option);
1007                                 break;
1008                         case 'b':
1009                                 FLAC__ASSERT(0 != option_argument);
1010                                 i = atoi(option_argument);
1011                                 if((i < (int)FLAC__MIN_BLOCK_SIZE || i > (int)FLAC__MAX_BLOCK_SIZE))
1012                                         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);
1013                                 add_compression_setting_unsigned(CST_BLOCKSIZE, (unsigned)i);
1014                                 break;
1015                         case 'e':
1016                                 add_compression_setting_bool(CST_DO_EXHAUSTIVE_MODEL_SEARCH, true);
1017                                 break;
1018                         case 'E':
1019                                 add_compression_setting_bool(CST_DO_ESCAPE_CODING, true);
1020                                 break;
1021                         case 'l':
1022                                 FLAC__ASSERT(0 != option_argument);
1023                                 i = atoi(option_argument);
1024                                 if((i < 0 || i > (int)FLAC__MAX_LPC_ORDER))
1025                                         return usage_error("ERROR: invalid LPC order (-%c) '%d', must be >= %u and <= %u\n", short_option, i, 0, FLAC__MAX_LPC_ORDER);
1026                                 add_compression_setting_unsigned(CST_MAX_LPC_ORDER, (unsigned)i);
1027                                 break;
1028                         case 'A':
1029                                 FLAC__ASSERT(0 != option_argument);
1030                                 add_compression_setting_string(CST_APODIZATION, option_argument);
1031                                 break;
1032                         case 'm':
1033                                 add_compression_setting_bool(CST_DO_MID_SIDE, true);
1034                                 add_compression_setting_bool(CST_LOOSE_MID_SIDE, false);
1035                                 break;
1036                         case 'M':
1037                                 add_compression_setting_bool(CST_DO_MID_SIDE, true);
1038                                 add_compression_setting_bool(CST_LOOSE_MID_SIDE, true);
1039                                 break;
1040                         case 'p':
1041                                 add_compression_setting_bool(CST_DO_QLP_COEFF_PREC_SEARCH, true);
1042                                 break;
1043                         case 'q':
1044                                 FLAC__ASSERT(0 != option_argument);
1045                                 i = atoi(option_argument);
1046                                 if(i < 0 || (i > 0 && (i < (int)FLAC__MIN_QLP_COEFF_PRECISION || i > (int)FLAC__MAX_QLP_COEFF_PRECISION)))
1047                                         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);
1048                                 add_compression_setting_unsigned(CST_QLP_COEFF_PRECISION, (unsigned)i);
1049                                 break;
1050                         case 'r':
1051                                 FLAC__ASSERT(0 != option_argument);
1052                                 p = strchr(option_argument, ',');
1053                                 if(0 == p) {
1054                                         add_compression_setting_unsigned(CST_MIN_RESIDUAL_PARTITION_ORDER, 0);
1055                                         i = atoi(option_argument);
1056                                         if(i < 0)
1057                                                 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);
1058                                         add_compression_setting_unsigned(CST_MAX_RESIDUAL_PARTITION_ORDER, (unsigned)i);
1059                                 }
1060                                 else {
1061                                         i = atoi(option_argument);
1062                                         if(i < 0)
1063                                                 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);
1064                                         add_compression_setting_unsigned(CST_MIN_RESIDUAL_PARTITION_ORDER, (unsigned)i);
1065                                         i = atoi(++p);
1066                                         if(i < 0)
1067                                                 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);
1068                                         add_compression_setting_unsigned(CST_MAX_RESIDUAL_PARTITION_ORDER, (unsigned)i);
1069                                 }
1070                                 break;
1071                         case 'R':
1072                                 i = atoi(option_argument);
1073                                 if(i < 0)
1074                                         return usage_error("ERROR: invalid value '%d' for Rice parameter search distance (-%c), must be >= 0\n", i, short_option);
1075                                 add_compression_setting_unsigned(CST_RICE_PARAMETER_SEARCH_DIST, (unsigned)i);
1076                                 break;
1077                         default:
1078                                 FLAC__ASSERT(0);
1079                 }
1080         }
1081
1082         return 0;
1083 }
1084
1085 void free_options(void)
1086 {
1087         unsigned i;
1088         if(0 != option_values.filenames) {
1089                 for(i = 0; i < option_values.num_files; i++) {
1090                         if(0 != option_values.filenames[i])
1091                                 free(option_values.filenames[i]);
1092                 }
1093                 free(option_values.filenames);
1094         }
1095         if(0 != option_values.vorbis_comment)
1096                 FLAC__metadata_object_delete(option_values.vorbis_comment);
1097         for(i = 0; i < option_values.num_pictures; i++)
1098                 FLAC__metadata_object_delete(option_values.pictures[i]);
1099 }
1100
1101 void add_compression_setting_bool(compression_setting_type_t type, FLAC__bool value)
1102 {
1103         if(option_values.num_compression_settings >= sizeof(option_values.compression_settings)/sizeof(option_values.compression_settings[0]))
1104                 die("too many compression settings");
1105         option_values.compression_settings[option_values.num_compression_settings].type = type;
1106         option_values.compression_settings[option_values.num_compression_settings].value.t_bool = value;
1107         option_values.num_compression_settings++;
1108 }
1109
1110 void add_compression_setting_string(compression_setting_type_t type, const char *value)
1111 {
1112         if(option_values.num_compression_settings >= sizeof(option_values.compression_settings)/sizeof(option_values.compression_settings[0]))
1113                 die("too many compression settings");
1114         option_values.compression_settings[option_values.num_compression_settings].type = type;
1115         option_values.compression_settings[option_values.num_compression_settings].value.t_string = value;
1116         option_values.num_compression_settings++;
1117 }
1118
1119 void add_compression_setting_unsigned(compression_setting_type_t type, unsigned value)
1120 {
1121         if(option_values.num_compression_settings >= sizeof(option_values.compression_settings)/sizeof(option_values.compression_settings[0]))
1122                 die("too many compression settings");
1123         option_values.compression_settings[option_values.num_compression_settings].type = type;
1124         option_values.compression_settings[option_values.num_compression_settings].value.t_unsigned = value;
1125         option_values.num_compression_settings++;
1126 }
1127
1128 int usage_error(const char *message, ...)
1129 {
1130         if(flac__utils_verbosity_ >= 1) {
1131                 va_list args;
1132
1133                 FLAC__ASSERT(0 != message);
1134
1135                 va_start(args, message);
1136
1137                 (void) vfprintf(stderr, message, args);
1138
1139                 va_end(args);
1140
1141                 printf("Type \"flac\" for a usage summary or \"flac --help\" for all options\n");
1142         }
1143
1144         return 1;
1145 }
1146
1147 void show_version(void)
1148 {
1149         printf("flac %s\n", FLAC__VERSION_STRING);
1150 }
1151
1152 static void usage_header(void)
1153 {
1154         printf("===============================================================================\n");
1155         printf("flac - Command-line FLAC encoder/decoder version %s\n", FLAC__VERSION_STRING);
1156         printf("Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007,2008  Josh Coalson\n");
1157         printf("\n");
1158         printf("This program is free software; you can redistribute it and/or\n");
1159         printf("modify it under the terms of the GNU General Public License\n");
1160         printf("as published by the Free Software Foundation; either version 2\n");
1161         printf("of the License, or (at your option) any later version.\n");
1162         printf("\n");
1163         printf("This program is distributed in the hope that it will be useful,\n");
1164         printf("but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
1165         printf("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n");
1166         printf("GNU General Public License for more details.\n");
1167         printf("\n");
1168         printf("You should have received a copy of the GNU General Public License\n");
1169         printf("along with this program; if not, write to the Free Software\n");
1170         printf("Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.\n");
1171         printf("===============================================================================\n");
1172 }
1173
1174 static void usage_summary(void)
1175 {
1176         printf("Usage:\n");
1177         printf("\n");
1178         printf(" Encoding: flac [<general-options>] [<encoding/format-options>] [INPUTFILE [...]]\n");
1179         printf(" Decoding: flac -d [<general-options>] [<format-options>] [FLACFILE [...]]\n");
1180         printf("  Testing: flac -t [<general-options>] [FLACFILE [...]]\n");
1181         printf("Analyzing: flac -a [<general-options>] [<analysis-options>] [FLACFILE [...]]\n");
1182         printf("\n");
1183         printf("Be sure to read the list of known bugs at:\n");
1184         printf("http://flac.sourceforge.net/documentation_bugs.html\n");
1185         printf("\n");
1186 }
1187
1188 void short_usage(void)
1189 {
1190         usage_header();
1191         printf("\n");
1192         printf("This is the short help; for all options use 'flac --help'; for even more\n");
1193         printf("instructions use 'flac --explain'\n");
1194         printf("\n");
1195         printf("Be sure to read the list of known bugs at:\n");
1196         printf("http://flac.sourceforge.net/documentation_bugs.html\n");
1197         printf("\n");
1198         printf("To encode:\n");
1199         printf("  flac [-#] [INPUTFILE [...]]\n");
1200         printf("\n");
1201         printf("  -# is -0 (fastest compression) to -8 (highest compression); -5 is the default\n");
1202         printf("\n");
1203         printf("To decode:\n");
1204         printf("  flac -d [INPUTFILE [...]]\n");
1205         printf("\n");
1206         printf("To test:\n");
1207         printf("  flac -t [INPUTFILE [...]]\n");
1208 }
1209
1210 void show_help(void)
1211 {
1212         usage_header();
1213         usage_summary();
1214         printf("general options:\n");
1215         printf("  -v, --version                Show the flac version number\n");
1216         printf("  -h, --help                   Show this screen\n");
1217         printf("  -H, --explain                Show detailed explanation of usage and options\n");
1218         printf("  -d, --decode                 Decode (the default behavior is to encode)\n");
1219         printf("  -t, --test                   Same as -d except no decoded file is written\n");
1220         printf("  -a, --analyze                Same as -d except an analysis file is written\n");
1221         printf("  -c, --stdout                 Write output to stdout\n");
1222         printf("  -s, --silent                 Do not write runtime encode/decode statistics\n");
1223         printf("      --totally-silent         Do not print anything, including errors\n");
1224         printf("      --no-utf8-convert        Do not convert tags from local charset to UTF-8\n");
1225         printf("  -w, --warnings-as-errors     Treat all warnings as errors\n");
1226         printf("  -f, --force                  Force overwriting of output files\n");
1227         printf("  -o, --output-name=FILENAME   Force the output file name\n");
1228         printf("      --output-prefix=STRING   Prepend STRING to output names\n");
1229         printf("      --delete-input-file      Deletes after a successful encode/decode\n");
1230         printf("      --preserve-modtime       Output files keep timestamp of input (default)\n");
1231         printf("      --keep-foreign-metadata  Save/restore WAVE or AIFF non-audio chunks\n");
1232         printf("      --skip={#|mm:ss.ss}      Skip the given initial samples for each input\n");
1233         printf("      --until={#|[+|-]mm:ss.ss}  Stop at the given sample for each input file\n");
1234 #if FLAC__HAS_OGG
1235         printf("      --ogg                    Use Ogg as transport layer\n");
1236         printf("      --serial-number          Serial number to use for the FLAC stream\n");
1237 #endif
1238         printf("analysis options:\n");
1239         printf("      --residual-text          Include residual signal in text output\n");
1240         printf("      --residual-gnuplot       Generate gnuplot files of residual distribution\n");
1241         printf("decoding options:\n");
1242         printf("  -F, --decode-through-errors  Continue decoding through stream errors\n");
1243         printf("      --cue=[#.#][-[#.#]]      Set the beginning and ending cuepoints to decode\n");
1244         printf("encoding options:\n");
1245         printf("  -V, --verify                 Verify a correct encoding\n");
1246         printf("      --lax                    Allow encoder to generate non-Subset files\n");
1247 #if 0 /*@@@ currently undocumented */
1248         printf("      --ignore-chunk-sizes     Ignore data chunk sizes in WAVE/AIFF files\n");
1249 #endif
1250         printf("      --sector-align (DEPRECATED) Align multiple files on sector boundaries\n");
1251         printf("      --replay-gain            Calculate ReplayGain & store in FLAC tags\n");
1252         printf("      --cuesheet=FILENAME      Import cuesheet and store in CUESHEET block\n");
1253         printf("      --picture=SPECIFICATION  Import picture and store in PICTURE block\n");
1254         printf("  -T, --tag=FIELD=VALUE        Add a FLAC tag; may appear multiple times\n");
1255         printf("      --tag-from-file=FIELD=FILENAME   Like --tag but gets value from file\n");
1256         printf("  -S, --seekpoint={#|X|#x|#s}  Add seek point(s)\n");
1257         printf("  -P, --padding=#              Write a PADDING block of length #\n");
1258         printf("  -0, --compression-level-0, --fast  Synonymous with -l 0 -b 1152 -r 3\n");
1259         printf("  -1, --compression-level-1          Synonymous with -l 0 -b 1152 -M -r 3\n");
1260         printf("  -2, --compression-level-2          Synonymous with -l 0 -b 1152 -m -r 3\n");
1261         printf("  -3, --compression-level-3          Synonymous with -l 6 -b 4096 -r 4\n");
1262         printf("  -4, --compression-level-4          Synonymous with -l 8 -b 4096 -M -r 4\n");
1263         printf("  -5, --compression-level-5          Synonymous with -l 8 -b 4096 -m -r 5\n");
1264         printf("  -6, --compression-level-6          Synonymous with -l 8 -b 4096 -m -r 6\n");
1265         printf("  -7, --compression-level-7          Synonymous with -l 8 -b 4096 -m -e -r 6\n");
1266         printf("  -8, --compression-level-8, --best  Synonymous with -l 12 -b 4096 -m -e -r 6\n");
1267         printf("  -b, --blocksize=#                  Specify blocksize in samples\n");
1268         printf("  -m, --mid-side                     Try mid-side coding for each frame\n");
1269         printf("  -M, --adaptive-mid-side            Adaptive mid-side coding for all frames\n");
1270         printf("  -e, --exhaustive-model-search      Do exhaustive model search (expensive!)\n");
1271         printf("  -A, --apodization=\"function\"       Window audio data with given the function\n");
1272         printf("  -l, --max-lpc-order=#              Max LPC order; 0 => only fixed predictors\n");
1273         printf("  -p, --qlp-coeff-precision-search   Exhaustively search LP coeff quantization\n");
1274         printf("  -q, --qlp-coeff-precision=#        Specify precision in bits\n");
1275         printf("  -r, --rice-partition-order=[#,]#   Set [min,]max residual partition order\n");
1276         printf("format options:\n");
1277         printf("      --endian={big|little}    Set byte order for samples\n");
1278         printf("      --channels=#             Number of channels\n");
1279         printf("      --bps=#                  Number of bits per sample\n");
1280         printf("      --sample-rate=#          Sample rate in Hz\n");
1281         printf("      --sign={signed|unsigned} Sign of samples\n");
1282         printf("      --input-size=#           Size of the raw input in bytes\n");
1283         printf("      --force-raw-format       Treat input or output as raw samples\n");
1284         printf("      --force-aiff-format      Force decoding to AIFF format\n");
1285         printf("      --force-rf64-format      Force decoding to RF64 format\n");
1286         printf("      --force-wave64-format    Force decoding to Wave64 format\n");
1287         printf("negative options:\n");
1288         printf("      --no-adaptive-mid-side\n");
1289         printf("      --no-decode-through-errors\n");
1290         printf("      --no-delete-input-file\n");
1291         printf("      --no-preserve-modtime\n");
1292         printf("      --no-keep-foreign-metadata\n");
1293         printf("      --no-exhaustive-model-search\n");
1294         printf("      --no-lax\n");
1295         printf("      --no-mid-side\n");
1296 #if FLAC__HAS_OGG
1297         printf("      --no-ogg\n");
1298 #endif
1299         printf("      --no-padding\n");
1300         printf("      --no-qlp-coeff-prec-search\n");
1301         printf("      --no-replay-gain\n");
1302         printf("      --no-residual-gnuplot\n");
1303         printf("      --no-residual-text\n");
1304 #if 0 /*@@@ currently undocumented */
1305         printf("      --no-ignore-chunk-sizes\n");
1306 #endif
1307         printf("      --no-sector-align\n");
1308         printf("      --no-seektable\n");
1309         printf("      --no-silent\n");
1310         printf("      --no-force\n");
1311         printf("      --no-verify\n");
1312         printf("      --no-warnings-as-errors\n");
1313 }
1314
1315 void show_explain(void)
1316 {
1317         usage_header();
1318         usage_summary();
1319         printf("For encoding:\n");
1320         printf("  The input file(s) may be a PCM WAVE or RF64 file, AIFF (or uncompressed\n");
1321         printf("  AIFF-C) file, or raw samples.\n");
1322         printf("  The output file(s) will be in native FLAC or Ogg FLAC format\n");
1323         printf("For decoding, the reverse is true.\n");
1324         printf("\n");
1325         printf("A single INPUTFILE may be - for stdin.  No INPUTFILE implies stdin.  Use of\n");
1326         printf("stdin implies -c (write to stdout).  Normally you should use:\n");
1327         printf("   flac [options] -o outfilename  or  flac -d [options] -o outfilename\n");
1328         printf("instead of:\n");
1329         printf("   flac [options] > outfilename   or  flac -d [options] > outfilename\n");
1330         printf("since the former allows flac to seek backwards to write the STREAMINFO or\n");
1331         printf("WAVE/AIFF header contents when necessary.\n");
1332         printf("\n");
1333         printf("flac checks for the presence of a AIFF/WAVE header to decide whether or not to\n");
1334         printf("treat an input file as AIFF/WAVE format or raw samples.  If any input file is\n");
1335         printf("raw you must specify the format options {-fb|fl} -fc -fp and -fs, which will\n");
1336         printf("apply to all raw files.  You can force AIFF/WAVE files to be treated as raw\n");
1337         printf("files using -fr.\n");
1338         printf("\n");
1339         printf("general options:\n");
1340         printf("  -v, --version                Show the flac version number\n");
1341         printf("  -h, --help                   Show basic usage a list of all options\n");
1342         printf("  -H, --explain                Show this screen\n");
1343         printf("  -d, --decode                 Decode (the default behavior is to encode)\n");
1344         printf("  -t, --test                   Same as -d except no decoded file is written\n");
1345         printf("  -a, --analyze                Same as -d except an analysis file is written\n");
1346         printf("  -c, --stdout                 Write output to stdout\n");
1347         printf("  -s, --silent                 Do not write runtime encode/decode statistics\n");
1348         printf("      --totally-silent         Do not print anything of any kind, including\n");
1349         printf("                               warnings or errors.  The exit code will be the\n");
1350         printf("                               only way to determine successful completion.\n");
1351         printf("      --no-utf8-convert        Do not convert tags from local charset to UTF-8.\n");
1352         printf("                               This is useful for scripts, and setting tags in\n");
1353         printf("                               situations where the locale is wrong.  This\n");
1354         printf("                               option must appear before any tag options!\n");
1355         printf("  -w, --warnings-as-errors     Treat all warnings as errors\n");
1356         printf("  -f, --force                  Force overwriting of output files\n");
1357         printf("  -o, --output-name=FILENAME   Force the output file name; usually flac just\n");
1358         printf("                               changes the extension.  May only be used when\n");
1359         printf("                               encoding a single file.  May not be used in\n");
1360         printf("                               conjunction with --output-prefix.\n");
1361         printf("      --output-prefix=STRING   Prefix each output file name with the given\n");
1362         printf("                               STRING.  This can be useful for encoding or\n");
1363         printf("                               decoding files to a different directory.  Make\n");
1364         printf("                               sure if your STRING is a path name that it ends\n");
1365         printf("                               with a '/' slash.\n");
1366         printf("      --delete-input-file      Automatically delete the input file after a\n");
1367         printf("                               successful encode or decode.  If there was an\n");
1368         printf("                               error (including a verify error) the input file\n");
1369         printf("                               is left intact.\n");
1370         printf("      --preserve-modtime       Output files have their timestamps/permissions\n");
1371         printf("                               set to match those of their inputs (this is\n");
1372         printf("                               default).  Use --no-preserve-modtime to make\n");
1373         printf("                               output files have the current time and default\n");
1374         printf("                               permissions.\n");
1375         printf("      --keep-foreign-metadata  If encoding, save WAVE or AIFF non-audio chunks\n");
1376         printf("                               in FLAC metadata.  If decoding, restore any saved\n");
1377         printf("                               non-audio chunks from FLAC metadata when writing\n");
1378         printf("                               the decoded file.  Foreign metadata cannot be\n");
1379         printf("                               transcoded, e.g. WAVE chunks saved in a FLAC file\n");
1380         printf("                               cannot be restored when decoding to AIFF.  Input\n");
1381         printf("                               and output must be regular files, not stdin/out.\n");
1382         printf("      --skip={#|mm:ss.ss}      Skip the first # samples of each input file; can\n");
1383         printf("                               be used both for encoding and decoding.  The\n");
1384         printf("                               alternative form mm:ss.ss can be used to specify\n");
1385         printf("                               minutes, seconds, and fractions of a second.\n");
1386         printf("      --until={#|[+|-]mm:ss.ss}  Stop at the given sample number for each input\n");
1387         printf("                               file.  The given sample number is not included\n");
1388         printf("                               in the decoded output.  The alternative form\n");
1389         printf("                               mm:ss.ss can be used to specify minutes,\n");
1390         printf("                               seconds, and fractions of a second.  If a `+'\n");
1391         printf("                               sign is at the beginning, the --until point is\n");
1392         printf("                               relative to the --skip point.  If a `-' sign is\n");
1393         printf("                               at the beginning, the --until point is relative\n");
1394         printf("                               to end of the audio.\n");
1395 #if FLAC__HAS_OGG
1396         printf("      --ogg                    When encoding, generate Ogg FLAC output instead\n");
1397         printf("                               of native FLAC.  Ogg FLAC streams are FLAC\n");
1398         printf("                               streams wrapped in an Ogg transport layer.  The\n");
1399         printf("                               resulting file should have an '.oga' extension\n");
1400         printf("                               and will still be decodable by flac.  When\n");
1401         printf("                               decoding, force the input to be treated as\n");
1402         printf("                               Ogg FLAC.  This is useful when piping input\n");
1403         printf("                               from stdin or when the filename does not end in\n");
1404         printf("                               '.oga' or '.ogg'.\n");
1405         printf("      --serial-number          Serial number to use for the FLAC stream.  When\n");
1406         printf("                               encoding and no serial number is given, flac\n");
1407         printf("                               uses a random one.  If encoding to multiple files\n");
1408         printf("                               the serial number is incremented for each file.\n");
1409         printf("                               When decoding and no number is given, flac uses\n");
1410         printf("                               the serial number of the first page.\n");
1411 #endif
1412         printf("analysis options:\n");
1413         printf("      --residual-text          Include residual signal in text output.  This\n");
1414         printf("                               will make the file very big, much larger than\n");
1415         printf("                               even the decoded file.\n");
1416         printf("      --residual-gnuplot       Generate gnuplot files of residual distribution\n");
1417         printf("                               of each subframe\n");
1418         printf("decoding options:\n");
1419         printf("  -F, --decode-through-errors  By default flac stops decoding with an error\n");
1420         printf("                               and removes the partially decoded file if it\n");
1421         printf("                               encounters a bitstream error.  With -F, errors\n");
1422         printf("                               are still printed but flac will continue\n");
1423         printf("                               decoding to completion.  Note that errors may\n");
1424         printf("                               cause the decoded audio to be missing some\n");
1425         printf("                               samples or have silent sections.\n");
1426         printf("      --cue=[#.#][-[#.#]]      Set the beginning and ending cuepoints to\n");
1427         printf("                               decode.  The optional first #.# is the track and\n");
1428         printf("                               index point at which decoding will start; the\n");
1429         printf("                               default is the beginning of the stream.  The\n");
1430         printf("                               optional second #.# is the track and index point\n");
1431         printf("                               at which decoding will end; the default is the\n");
1432         printf("                               end of the stream.  If the cuepoint does not\n");
1433         printf("                               exist, the closest one before it (for the start\n");
1434         printf("                               point) or after it (for the end point) will be\n");
1435         printf("                               used.  The cuepoints are merely translated into\n");
1436         printf("                               sample numbers then used as --skip and --until.\n");
1437         printf("                               A CD track can always be cued by, for example,\n");
1438         printf("                               --cue=9.1-10.1 for track 9, even if the CD has\n");
1439         printf("                               no 10th track.\n");
1440         printf("encoding options:\n");
1441         printf("  -V, --verify                 Verify a correct encoding by decoding the\n");
1442         printf("                               output in parallel and comparing to the\n");
1443         printf("                               original\n");
1444         printf("      --lax                    Allow encoder to generate non-Subset files\n");
1445 #if 0 /*@@@ currently undocumented */
1446         printf("      --ignore-chunk-sizes     Ignore data chunk sizes in WAVE/AIFF files;\n");
1447         printf("                               useful when piping data from programs which\n");
1448         printf("                               generate bogus data chunk sizes.\n");
1449 #endif
1450         printf("      --sector-align           Align encoding of multiple CD format WAVE files\n");
1451         printf("                               on sector boundaries.  This option is DEPRECATED\n");
1452         printf("                               and may not exist in future versions of flac.\n");
1453         printf("                               shntool offers similar functionality.\n");
1454         printf("      --replay-gain            Calculate ReplayGain values and store them as\n");
1455         printf("                               FLAC tags.  Title gains/peaks will be computed\n");
1456         printf("                               for each file, and an album gain/peak will be\n");
1457         printf("                               computed for all files.  All input files must\n");
1458         printf("                               have the same resolution, sample rate, and\n");
1459         printf("                               number of channels.  The sample rate must be\n");
1460         printf("                               one of 8, 11.025, 12, 16, 22.05, 24, 32, 44.1,\n");
1461         printf("                               or 48 kHz.  NOTE: this option may also leave a\n");
1462         printf("                               few extra bytes in the PADDING block.\n");
1463         printf("      --cuesheet=FILENAME      Import the given cuesheet file and store it in\n");
1464         printf("                               a CUESHEET metadata block.  This option may only\n");
1465         printf("                               be used when encoding a single file.  A\n");
1466         printf("                               seekpoint will be added for each index point in\n");
1467         printf("                               the cuesheet to the SEEKTABLE unless\n");
1468         printf("                               --no-cued-seekpoints is specified.\n");
1469         printf("      --picture=SPECIFICATION  Import a picture and store it in a PICTURE block.\n");
1470         printf("                               More than one --picture command can be specified.\n");
1471         printf("                               The SPECIFICATION can either be a simple filename\n");
1472         printf("                               for the picture file, or a complete specification\n");
1473         printf("                               whose parts are separated by | characters.  Some\n");
1474         printf("                               parts may be left empty to invoke default values.\n");
1475         printf("                               Using a filename is shorthand for \"||||FILE\".\n");
1476         printf("                               The SPECIFICATION format is:\n");
1477         printf("         [TYPE]|[MIME-TYPE]|[DESCRIPTION]|[WIDTHxHEIGHTxDEPTH[/COLORS]]|FILE\n");
1478         printf("           TYPE is optional; it is a number from one of:\n");
1479         printf("              0: Other\n");
1480         printf("              1: 32x32 pixels 'file icon' (PNG only)\n");
1481         printf("              2: Other file icon\n");
1482         printf("              3: Cover (front)\n");
1483         printf("              4: Cover (back)\n");
1484         printf("              5: Leaflet page\n");
1485         printf("              6: Media (e.g. label side of CD)\n");
1486         printf("              7: Lead artist/lead performer/soloist\n");
1487         printf("              8: Artist/performer\n");
1488         printf("              9: Conductor\n");
1489         printf("             10: Band/Orchestra\n");
1490         printf("             11: Composer\n");
1491         printf("             12: Lyricist/text writer\n");
1492         printf("             13: Recording Location\n");
1493         printf("             14: During recording\n");
1494         printf("             15: During performance\n");
1495         printf("             16: Movie/video screen capture\n");
1496         printf("             17: A bright coloured fish\n");
1497         printf("             18: Illustration\n");
1498         printf("             19: Band/artist logotype\n");
1499         printf("             20: Publisher/Studio logotype\n");
1500         printf("             The default is 3 (front cover).  There may only be one picture each\n");
1501         printf("             of type 1 and 2 in a file.\n");
1502         printf("           MIME-TYPE is optional; if left blank, it will be detected from the\n");
1503         printf("             file.  For best compatibility with players, use pictures with MIME\n");
1504         printf("             type image/jpeg or image/png.  The MIME type can also be --> to\n");
1505         printf("             mean that FILE is actually a URL to an image, though this use is\n");
1506         printf("             discouraged.\n");
1507         printf("           DESCRIPTION is optional; the default is an empty string\n");
1508         printf("           The next part specfies the resolution and color information.  If\n");
1509         printf("             the MIME-TYPE is image/jpeg, image/png, or image/gif, you can\n");
1510         printf("             usually leave this empty and they can be detected from the file.\n");
1511         printf("             Otherwise, you must specify the width in pixels, height in pixels,\n");
1512         printf("             and color depth in bits-per-pixel.  If the image has indexed colors\n");
1513         printf("             you should also specify the number of colors used.\n");
1514         printf("           FILE is the path to the picture file to be imported, or the URL if\n");
1515         printf("             MIME type is -->\n");
1516         printf("  -T, --tag=FIELD=VALUE        Add a FLAC tag.  Make sure to quote the\n");
1517         printf("                               comment if necessary.  This option may appear\n");
1518         printf("                               more than once to add several comments.  NOTE:\n");
1519         printf("                               all tags will be added to all encoded files.\n");
1520         printf("      --tag-from-file=FIELD=FILENAME   Like --tag, except FILENAME is a file\n");
1521         printf("                               whose contents will be read verbatim to set the\n");
1522         printf("                               tag value.  The contents will be converted to\n");
1523         printf("                               UTF-8 from the local charset.  This can be used\n");
1524         printf("                               to store a cuesheet in a tag (e.g.\n");
1525         printf("                               --tag-from-file=\"CUESHEET=image.cue\").  Do not\n");
1526         printf("                               try to store binary data in tag fields!  Use\n");
1527         printf("                               APPLICATION blocks for that.\n");
1528         printf("  -S, --seekpoint={#|X|#x|#s}  Include a point or points in a SEEKTABLE\n");
1529         printf("       #  : a specific sample number for a seek point\n");
1530         printf("       X  : a placeholder point (always goes at the end of the SEEKTABLE)\n");
1531         printf("       #x : # evenly spaced seekpoints, the first being at sample 0\n");
1532         printf("       #s : a seekpoint every # seconds; # does not have to be a whole number\n");
1533         printf("     You may use many -S options; the resulting SEEKTABLE will be the unique-\n");
1534         printf("           ified union of all such values.\n");
1535         printf("     With no -S options, flac defaults to '-S 10s'.  Use -S- for no SEEKTABLE.\n");
1536         printf("     Note: -S #x and -S #s will not work if the encoder can't determine the\n");
1537         printf("           input size before starting.\n");
1538         printf("     Note: if you use -S # and # is >= samples in the input, there will be\n");
1539         printf("           either no seek point entered (if the input size is determinable\n");
1540         printf("           before encoding starts) or a placeholder point (if input size is not\n");
1541         printf("           determinable)\n");
1542         printf("  -P, --padding=#              Tell the encoder to write a PADDING metadata\n");
1543         printf("                               block of the given length (in bytes) after the\n");
1544         printf("                               STREAMINFO block.  This is useful if you plan\n");
1545         printf("                               to tag the file later with an APPLICATION\n");
1546         printf("                               block; instead of having to rewrite the entire\n");
1547         printf("                               file later just to insert your block, you can\n");
1548         printf("                               write directly over the PADDING block.  Note\n");
1549         printf("                               that the total length of the PADDING block will\n");
1550         printf("                               be 4 bytes longer than the length given because\n");
1551         printf("                               of the 4 metadata block header bytes.  You can\n");
1552         printf("                               force no PADDING block at all to be written with\n");
1553         printf("                               --no-padding.  The encoder writes a PADDING\n");
1554         printf("                               block of 8192 bytes by default, or 65536 bytes\n");
1555         printf("                               if the input audio is more than 20 minutes long.\n");
1556         printf("  -b, --blocksize=#            Specify the blocksize in samples; the default is\n");
1557         printf("                               1152 for -l 0, else 4096; must be one of 192,\n");
1558         printf("                               576, 1152, 2304, 4608, 256, 512, 1024, 2048,\n");
1559         printf("                               4096 (and 8192 or 16384 if the sample rate is\n");
1560         printf("                               >48kHz) for Subset streams.\n");
1561         printf("  -0, --compression-level-0, --fast  Synonymous with -l 0 -b 1152 -r 3\n");
1562         printf("  -1, --compression-level-1          Synonymous with -l 0 -b 1152 -M -r 3\n");
1563         printf("  -2, --compression-level-2          Synonymous with -l 0 -b 1152 -m -r 3\n");
1564         printf("  -3, --compression-level-3          Synonymous with -l 6 -b 4096 -r 4\n");
1565         printf("  -4, --compression-level-4          Synonymous with -l 8 -b 4096 -M -r 4\n");
1566         printf("  -5, --compression-level-5          Synonymous with -l 8 -b 4096 -m -r 5\n");
1567         printf("                                     -5 is the default setting\n");
1568         printf("  -6, --compression-level-6          Synonymous with -l 8 -b 4096 -m -r 6\n");
1569         printf("  -7, --compression-level-7          Synonymous with -l 8 -b 4096 -m -e -r 6\n");
1570         printf("  -8, --compression-level-8, --best  Synonymous with -l 12 -b 4096 -m -e -r 6\n");
1571         printf("  -m, --mid-side                     Try mid-side coding for each frame\n");
1572         printf("                                     (stereo only)\n");
1573         printf("  -M, --adaptive-mid-side            Adaptive mid-side coding for all frames\n");
1574         printf("                                     (stereo only)\n");
1575         printf("  -e, --exhaustive-model-search      Do exhaustive model search (expensive!)\n");
1576         printf("  -A, --apodization=\"function\"       Window audio data with given the function.\n");
1577         printf("                                     The functions are: bartlett, bartlett_hann,\n");
1578         printf("                                     blackman, blackman_harris_4term_92db,\n");
1579         printf("                                     connes, flattop, gauss(STDDEV), hamming,\n");
1580         printf("                                     hann, kaiser_bessel, nuttall, rectangle,\n");
1581         printf("                                     triangle, tukey(P), welch.  More than one\n");
1582         printf("                                     may be specified but encoding time is a\n");
1583         printf("                                     multiple of the number of functions since\n");
1584         printf("                                     they are each tried in turn.  The encoder\n");
1585         printf("                                     chooses suitable defaults in the absence\n");
1586         printf("                                     of any -A options.\n");
1587         printf("  -l, --max-lpc-order=#              Max LPC order; 0 => only fixed predictors.\n");
1588         printf("                                     Must be <= 12 for Subset streams if sample\n");
1589         printf("                                     rate is <=48kHz.\n");
1590         printf("  -p, --qlp-coeff-precision-search   Do exhaustive search of LP coefficient\n");
1591         printf("                                     quantization (expensive!); overrides -q;\n");
1592         printf("                                     does nothing if using -l 0\n");
1593         printf("  -q, --qlp-coeff-precision=#        Specify precision in bits of quantized\n");
1594         printf("                                     linear-predictor coefficients; 0 => let\n");
1595         printf("                                     encoder decide (the minimun is %u, the\n", FLAC__MIN_QLP_COEFF_PRECISION);
1596         printf("                                     default is -q 0)\n");
1597         printf("  -r, --rice-partition-order=[#,]#   Set [min,]max residual partition order\n");
1598         printf("                                     (# is 0..16; min defaults to 0; the\n");
1599         printf("                                     default is -r 0; above 4 doesn't usually\n");
1600         printf("                                     help much)\n");
1601         printf("format options:\n");
1602         printf("      --endian={big|little}    Set byte order for samples\n");
1603         printf("      --channels=#             Number of channels\n");
1604         printf("      --bps=#                  Number of bits per sample\n");
1605         printf("      --sample-rate=#          Sample rate in Hz\n");
1606         printf("      --sign={signed|unsigned} Sign of samples (the default is signed)\n");
1607         printf("      --input-size=#           Size of the raw input in bytes.  If you are\n");
1608         printf("                               encoding raw samples from stdin, you must set\n");
1609         printf("                               this option in order to be able to use --skip,\n");
1610         printf("                               --until, --cue-sheet, or other options that need\n");
1611         printf("                               to know the size of the input beforehand.  If\n");
1612         printf("                               the size given is greater than what is found in\n");
1613         printf("                               the input stream, the encoder will complain\n");
1614         printf("                               about an unexpected end-of-file.  If the size\n");
1615         printf("                               given is less, samples will be truncated.\n");
1616         printf("      --force-raw-format       Force input (when encoding) or output (when\n");
1617         printf("                               decoding) to be treated as raw samples\n");
1618         printf("      --force-aiff-format      Force the decoder to output AIFF format.  This\n");
1619         printf("                               option is not needed if the output filename (as\n");
1620         printf("                               set by -o) ends with .aif or .aiff; this option\n");
1621         printf("                               has no effect when encoding since input AIFF is\n");
1622         printf("                               auto-detected.\n");
1623         printf("      --force-rf64-format      Force the decoder to output RF64 format.  This\n");
1624         printf("                               option is not needed if the output filename (as\n");
1625         printf("                               set by -o) ends with .rf64; this option\n");
1626         printf("                               has no effect when encoding since input RF64 is\n");
1627         printf("                               auto-detected.\n");
1628         printf("      --force-wave64-format    Force the decoder to output Wave64 format.  This\n");
1629         printf("                               option is not needed if the output filename (as\n");
1630         printf("                               set by -o) ends with .w64; this option\n");
1631         printf("                               has no effect when encoding since input Wave64 is\n");
1632         printf("                               auto-detected.\n");
1633         printf("negative options:\n");
1634         printf("      --no-adaptive-mid-side\n");
1635         printf("      --no-decode-through-errors\n");
1636         printf("      --no-delete-input-file\n");
1637         printf("      --no-preserve-modtime\n");
1638         printf("      --no-keep-foreign-metadata\n");
1639         printf("      --no-exhaustive-model-search\n");
1640         printf("      --no-lax\n");
1641         printf("      --no-mid-side\n");
1642 #if FLAC__HAS_OGG
1643         printf("      --no-ogg\n");
1644 #endif
1645         printf("      --no-padding\n");
1646         printf("      --no-qlp-coeff-prec-search\n");
1647         printf("      --no-residual-gnuplot\n");
1648         printf("      --no-residual-text\n");
1649 #if 0 /*@@@ currently undocumented */
1650         printf("      --no-ignore-chunk-sizes\n");
1651 #endif
1652         printf("      --no-sector-align\n");
1653         printf("      --no-seektable\n");
1654         printf("      --no-silent\n");
1655         printf("      --no-force\n");
1656         printf("      --no-verify\n");
1657         printf("      --no-warnings-as-errors\n");
1658 }
1659
1660 void format_mistake(const char *infilename, FileFormat wrong, FileFormat right)
1661 {
1662         /* WATCHOUT: indexed by FileFormat */
1663         static const char * const ff[] = { " raw", " WAVE", "n RF64", "n AIFF", "n AIFF-C", " FLAC", "n Ogg FLAC" };
1664         flac__utils_printf(stderr, 1, "WARNING: %s is not a%s file; treating as a%s file\n", infilename, ff[wrong], ff[right]);
1665 }
1666
1667 int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file)
1668 {
1669         FILE *encode_infile;
1670         FLAC__byte lookahead[12];
1671         unsigned lookahead_length = 0;
1672         FileFormat input_format = FORMAT_RAW;
1673         int retval;
1674         off_t infilesize;
1675         encode_options_t encode_options;
1676         const char *outfilename = get_encoded_outfilename(infilename); /* the final name of the encoded file */
1677         /* internal_outfilename is the file we will actually write to; it will be a temporary name if infilename==outfilename */
1678         char *internal_outfilename = 0; /* NULL implies 'use outfilename' */
1679
1680         if(0 == outfilename) {
1681                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", infilename);
1682                 return 1;
1683         }
1684
1685         if(0 == strcmp(infilename, "-")) {
1686                 infilesize = (off_t)(-1);
1687                 encode_infile = grabbag__file_get_binary_stdin();
1688         }
1689         else {
1690                 infilesize = grabbag__file_get_filesize(infilename);
1691                 if(0 == (encode_infile = fopen(infilename, "rb"))) {
1692                         flac__utils_printf(stderr, 1, "ERROR: can't open input file %s: %s\n", infilename, strerror(errno));
1693                         return 1;
1694                 }
1695         }
1696
1697         if(!option_values.force_raw_format) {
1698                 /* first set format based on name */
1699                 if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".wav"))
1700                         input_format = FORMAT_WAVE;
1701                 else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".rf64"))
1702                         input_format = FORMAT_RF64;
1703                 else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".w64"))
1704                         input_format = FORMAT_WAVE64;
1705                 else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".aif"))
1706                         input_format = FORMAT_AIFF;
1707                 else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".aiff"))
1708                         input_format = FORMAT_AIFF;
1709                 else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".flac"))
1710                         input_format = FORMAT_FLAC;
1711                 else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".oga"))
1712                         input_format = FORMAT_OGGFLAC;
1713                 else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".ogg"))
1714                         input_format = FORMAT_OGGFLAC;
1715
1716                 /* attempt to guess the file type based on the first 12 bytes */
1717                 if((lookahead_length = fread(lookahead, 1, 12, encode_infile)) < 12) {
1718                         /* all supported non-raw formats have at least 12 bytes of header to read */
1719                         if(input_format != FORMAT_RAW) {
1720                                 format_mistake(infilename, input_format, FORMAT_RAW);
1721                                 if(option_values.treat_warnings_as_errors) {
1722                                         conditional_fclose(encode_infile);
1723                                         return 1;
1724                                 }
1725                         }
1726                         /* force to raw */
1727                         input_format = FORMAT_RAW;
1728                 }
1729                 else {
1730                         if(!memcmp(lookahead, "ID3", 3)) {
1731                                 flac__utils_printf(stderr, 1, "ERROR: input file %s has an ID3v2 tag\n", infilename);
1732                                 return 1;
1733                         }
1734                         else if(!memcmp(lookahead, "RIFF", 4) && !memcmp(lookahead+8, "WAVE", 4))
1735                                 input_format = FORMAT_WAVE;
1736                         else if(!memcmp(lookahead, "RF64", 4) && !memcmp(lookahead+8, "WAVE", 4))
1737                                 input_format = FORMAT_RF64;
1738                         else if(!memcmp(lookahead, "riff\x2E\x91\xCF\x11\xD6\xA5\x28\xDB", 12)) /* just check 1st 12 bytes of GUID */
1739                                 input_format = FORMAT_WAVE64;
1740                         else if(!memcmp(lookahead, "FORM", 4) && !memcmp(lookahead+8, "AIFF", 4))
1741                                 input_format = FORMAT_AIFF;
1742                         else if(!memcmp(lookahead, "FORM", 4) && !memcmp(lookahead+8, "AIFC", 4))
1743                                 input_format = FORMAT_AIFF_C;
1744                         else if(!memcmp(lookahead, FLAC__STREAM_SYNC_STRING, sizeof(FLAC__STREAM_SYNC_STRING)))
1745                                 input_format = FORMAT_FLAC;
1746                         /*@@@ 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. */
1747                         else if(!memcmp(lookahead, "OggS", 4))
1748                                 input_format = FORMAT_OGGFLAC;
1749                         else {
1750                                 /* didn't find header of any supported format */
1751                                 if(input_format != FORMAT_RAW) {
1752                                         format_mistake(infilename, input_format, FORMAT_RAW);
1753                                         if(option_values.treat_warnings_as_errors) {
1754                                                 conditional_fclose(encode_infile);
1755                                                 return 1;
1756                                         }
1757                                 }
1758                                 /* force to raw */
1759                                 input_format = FORMAT_RAW;
1760                         }
1761                 }
1762         }
1763
1764         if(option_values.keep_foreign_metadata) {
1765                 if(encode_infile == stdin || option_values.force_to_stdout) {
1766                         conditional_fclose(encode_infile);
1767                         return usage_error("ERROR: --keep-foreign-metadata cannot be used when encoding from stdin or to stdout\n");
1768                 }
1769                 if(input_format != FORMAT_WAVE && input_format != FORMAT_WAVE64 && input_format != FORMAT_RF64 && input_format != FORMAT_AIFF && input_format != FORMAT_AIFF_C) {
1770                         conditional_fclose(encode_infile);
1771                         return usage_error("ERROR: --keep-foreign-metadata can only be used with WAVE, Wave64, RF64, or AIFF input\n");
1772                 }
1773         }
1774
1775         /*
1776          * Error if output file already exists (and -f not used).
1777          * Use grabbag__file_get_filesize() as a cheap way to check.
1778          */
1779         if(!option_values.test_only && !option_values.force_file_overwrite && strcmp(outfilename, "-") && grabbag__file_get_filesize(outfilename) != (off_t)(-1)) {
1780                 if(input_format == FORMAT_FLAC) {
1781                         /* need more detailed error message when re-flac'ing to avoid confusing the user */
1782                         flac__utils_printf(stderr, 1,
1783                                 "ERROR: output file %s already exists.\n\n"
1784                                 "By default flac encodes files to FLAC format; if you meant to decode this file\n"
1785                                 "from FLAC to something else, use -d.  If you meant to re-encode this file from\n"
1786                                 "FLAC to FLAC again, use -f to force writing to the same file, or -o to specify\n"
1787                                 "a different output filename.\n",
1788                                 outfilename
1789                         );
1790                 }
1791                 else if(input_format == FORMAT_OGGFLAC) {
1792                         /* need more detailed error message when re-flac'ing to avoid confusing the user */
1793                         flac__utils_printf(stderr, 1,
1794                                 "ERROR: output file %s already exists.\n\n"
1795                                 "By default 'flac -ogg' encodes files to Ogg FLAC format; if you meant to decode\n"
1796                                 "this file from Ogg FLAC to something else, use -d.  If you meant to re-encode\n"
1797                                 "this file from Ogg FLAC to Ogg FLAC again, use -f to force writing to the same\n"
1798                                 "file, or -o to specify a different output filename.\n",
1799                                 outfilename
1800                         );
1801                 }
1802                 else
1803                         flac__utils_printf(stderr, 1, "ERROR: output file %s already exists, use -f to override\n", outfilename);
1804                 conditional_fclose(encode_infile);
1805                 return 1;
1806         }
1807
1808         if(option_values.format_input_size >= 0) {
1809                 if (input_format != FORMAT_RAW || infilesize >= 0) {
1810                         flac__utils_printf(stderr, 1, "ERROR: can only use --input-size when encoding raw samples from stdin\n");
1811                         conditional_fclose(encode_infile);
1812                         return 1;
1813                 }
1814                 else {
1815                         infilesize = option_values.format_input_size;
1816                 }
1817         }
1818
1819         if(option_values.sector_align && (input_format == FORMAT_FLAC || input_format == FORMAT_OGGFLAC)) {
1820                 flac__utils_printf(stderr, 1, "ERROR: can't use --sector-align when the input file is FLAC or Ogg FLAC\n");
1821                 conditional_fclose(encode_infile);
1822                 return 1;
1823         }
1824         if(option_values.sector_align && input_format == FORMAT_RAW && infilesize < 0) {
1825                 flac__utils_printf(stderr, 1, "ERROR: can't use --sector-align when the input size is unknown\n");
1826                 conditional_fclose(encode_infile);
1827                 return 1;
1828         }
1829
1830         if(input_format == FORMAT_RAW) {
1831                 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) {
1832                         conditional_fclose(encode_infile);
1833                         return usage_error("ERROR: for encoding a raw file you must specify a value for --endian, --sign, --channels, --bps, and --sample-rate\n");
1834                 }
1835         }
1836
1837         if(/*@@@@@@why no stdin?*/encode_infile == stdin || option_values.force_to_stdout) {
1838                 if(option_values.replay_gain) {
1839                         conditional_fclose(encode_infile);
1840                         return usage_error("ERROR: --replay-gain cannot be used when encoding to stdout\n");
1841                 }
1842         }
1843         if(option_values.replay_gain && option_values.use_ogg) {
1844                 conditional_fclose(encode_infile);
1845                 return usage_error("ERROR: --replay-gain cannot be used when encoding to Ogg FLAC yet\n");
1846         }
1847
1848         if(!flac__utils_parse_skip_until_specification(option_values.skip_specification, &encode_options.skip_specification) || encode_options.skip_specification.is_relative) {
1849                 conditional_fclose(encode_infile);
1850                 return usage_error("ERROR: invalid value for --skip\n");
1851         }
1852
1853         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 */
1854                 conditional_fclose(encode_infile);
1855                 return usage_error("ERROR: invalid value for --until\n");
1856         }
1857         /* if there is no "--until" we want to default to "--until=-0" */
1858         if(0 == option_values.until_specification)
1859                 encode_options.until_specification.is_relative = true;
1860
1861         encode_options.verify = option_values.verify;
1862         encode_options.treat_warnings_as_errors = option_values.treat_warnings_as_errors;
1863 #if FLAC__HAS_OGG
1864         encode_options.use_ogg = option_values.use_ogg;
1865         /* set a random serial number if one has not yet been specified */
1866         if(!option_values.has_serial_number) {
1867                 option_values.serial_number = rand();
1868                 option_values.has_serial_number = true;
1869         }
1870         encode_options.serial_number = option_values.serial_number++;
1871 #endif
1872         encode_options.lax = option_values.lax;
1873         encode_options.padding = option_values.padding;
1874         encode_options.num_compression_settings = option_values.num_compression_settings;
1875         FLAC__ASSERT(sizeof(encode_options.compression_settings) >= sizeof(option_values.compression_settings));
1876         memcpy(encode_options.compression_settings, option_values.compression_settings, sizeof(option_values.compression_settings));
1877         encode_options.requested_seek_points = option_values.requested_seek_points;
1878         encode_options.num_requested_seek_points = option_values.num_requested_seek_points;
1879         encode_options.cuesheet_filename = option_values.cuesheet_filename;
1880         encode_options.continue_through_decode_errors = option_values.continue_through_decode_errors;
1881         encode_options.cued_seekpoints = option_values.cued_seekpoints;
1882         encode_options.channel_map_none = option_values.channel_map_none;
1883         encode_options.is_first_file = is_first_file;
1884         encode_options.is_last_file = is_last_file;
1885         encode_options.align_reservoir = align_reservoir;
1886         encode_options.align_reservoir_samples = &align_reservoir_samples;
1887         encode_options.replay_gain = option_values.replay_gain;
1888         encode_options.ignore_chunk_sizes = option_values.ignore_chunk_sizes;
1889         encode_options.sector_align = option_values.sector_align;
1890         encode_options.vorbis_comment = option_values.vorbis_comment;
1891         FLAC__ASSERT(sizeof(encode_options.pictures) >= sizeof(option_values.pictures));
1892         memcpy(encode_options.pictures, option_values.pictures, sizeof(option_values.pictures));
1893         encode_options.num_pictures = option_values.num_pictures;
1894         encode_options.format = input_format;
1895         encode_options.debug.disable_constant_subframes = option_values.debug.disable_constant_subframes;
1896         encode_options.debug.disable_fixed_subframes = option_values.debug.disable_fixed_subframes;
1897         encode_options.debug.disable_verbatim_subframes = option_values.debug.disable_verbatim_subframes;
1898         encode_options.debug.do_md5 = option_values.debug.do_md5;
1899
1900         /* if infilename and outfilename point to the same file, we need to write to a temporary file */
1901         if(encode_infile != stdin && grabbag__file_are_same(infilename, outfilename)) {
1902                 static const char *tmp_suffix = ".tmp,fl-ac+en'c";
1903                 /*@@@@ still a remote possibility that a file with this filename exists */
1904                 if(0 == (internal_outfilename = (char *)safe_malloc_add_3op_(strlen(outfilename), /*+*/strlen(tmp_suffix), /*+*/1))) {
1905                         flac__utils_printf(stderr, 1, "ERROR allocating memory for tempfile name\n");
1906                         conditional_fclose(encode_infile);
1907                         return 1;
1908                 }
1909                 strcpy(internal_outfilename, outfilename);
1910                 strcat(internal_outfilename, tmp_suffix);
1911         }
1912
1913         if(input_format == FORMAT_RAW) {
1914                 encode_options.format_options.raw.is_big_endian = option_values.format_is_big_endian;
1915                 encode_options.format_options.raw.is_unsigned_samples = option_values.format_is_unsigned_samples;
1916                 encode_options.format_options.raw.channels = option_values.format_channels;
1917                 encode_options.format_options.raw.bps = option_values.format_bps;
1918                 encode_options.format_options.raw.sample_rate = option_values.format_sample_rate;
1919
1920                 retval = flac__encode_file(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, encode_options);
1921         }
1922         else if(input_format == FORMAT_FLAC || input_format == FORMAT_OGGFLAC) {
1923                 retval = flac__encode_file(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, encode_options);
1924         }
1925         else if(input_format == FORMAT_WAVE || input_format == FORMAT_WAVE64 || input_format == FORMAT_RF64 || input_format == FORMAT_AIFF || input_format == FORMAT_AIFF_C) {
1926                 encode_options.format_options.iff.foreign_metadata = 0;
1927
1928                 /* initialize foreign metadata if requested */
1929                 if(option_values.keep_foreign_metadata) {
1930                         encode_options.format_options.iff.foreign_metadata =
1931                                 flac__foreign_metadata_new(
1932                                         input_format==FORMAT_WAVE || input_format==FORMAT_RF64?
1933                                                 FOREIGN_BLOCK_TYPE__RIFF :
1934                                         input_format==FORMAT_WAVE64?
1935                                                 FOREIGN_BLOCK_TYPE__WAVE64 :
1936                                                 FOREIGN_BLOCK_TYPE__AIFF
1937                                 );
1938                         if(0 == encode_options.format_options.iff.foreign_metadata) {
1939                                 flac__utils_printf(stderr, 1, "ERROR: creating foreign metadata object\n");
1940                                 conditional_fclose(encode_infile);
1941                                 return 1;
1942                         }
1943                 }
1944
1945                 retval = flac__encode_file(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, encode_options);
1946
1947                 if(encode_options.format_options.iff.foreign_metadata)
1948                         flac__foreign_metadata_delete(encode_options.format_options.iff.foreign_metadata);
1949         }
1950         else {
1951                 FLAC__ASSERT(0);
1952                 retval = 1; /* double protection */
1953         }
1954
1955         if(retval == 0) {
1956                 if(strcmp(outfilename, "-")) {
1957                         if(option_values.replay_gain) {
1958                                 float title_gain, title_peak;
1959                                 const char *error;
1960                                 grabbag__replaygain_get_title(&title_gain, &title_peak);
1961                                 if(
1962                                         0 != (error = grabbag__replaygain_store_to_file_reference(internal_outfilename? internal_outfilename : outfilename, option_values.preserve_modtime)) ||
1963                                         0 != (error = grabbag__replaygain_store_to_file_title(internal_outfilename? internal_outfilename : outfilename, title_gain, title_peak, option_values.preserve_modtime))
1964                                 ) {
1965                                         flac__utils_printf(stderr, 1, "%s: ERROR writing ReplayGain reference/title tags (%s)\n", outfilename, error);
1966                                         retval = 1;
1967                                 }
1968                         }
1969                         if(option_values.preserve_modtime && strcmp(infilename, "-"))
1970                                 grabbag__file_copy_metadata(infilename, internal_outfilename? internal_outfilename : outfilename);
1971                 }
1972         }
1973
1974         /* rename temporary file if necessary */
1975         if(retval == 0 && internal_outfilename != 0) {
1976                 if(rename(internal_outfilename, outfilename) < 0) {
1977 #if defined _MSC_VER || defined __MINGW32__ || defined __EMX__
1978                         /* on some flavors of windows, rename() will fail if the destination already exists, so we unlink and try again */
1979                         if(unlink(outfilename) < 0) {
1980                                 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);
1981                                 retval = 1;
1982                         }
1983                         else if(rename(internal_outfilename, outfilename) < 0) {
1984                                 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);
1985                                 retval = 1;
1986                         }
1987 #else
1988                         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);
1989                         retval = 1;
1990 #endif
1991                 }
1992         }
1993
1994         /* handle --delete-input-file, but don't want to delete if piping from stdin, or if input filename and output filename are the same */
1995         if(retval == 0 && option_values.delete_input && strcmp(infilename, "-") && internal_outfilename == 0)
1996                 unlink(infilename);
1997
1998         if(internal_outfilename != 0)
1999                 free(internal_outfilename);
2000
2001         return retval;
2002 }
2003
2004 int decode_file(const char *infilename)
2005 {
2006         int retval;
2007         FLAC__bool treat_as_ogg = false;
2008         FileFormat output_format = FORMAT_WAVE;
2009         decode_options_t decode_options;
2010         const char *outfilename = get_decoded_outfilename(infilename);
2011
2012         if(0 == outfilename) {
2013                 flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", infilename);
2014                 return 1;
2015         }
2016
2017         /*
2018          * Error if output file already exists (and -f not used).
2019          * Use grabbag__file_get_filesize() as a cheap way to check.
2020          */
2021         if(!option_values.test_only && !option_values.force_file_overwrite && strcmp(outfilename, "-") && grabbag__file_get_filesize(outfilename) != (off_t)(-1)) {
2022                 flac__utils_printf(stderr, 1, "ERROR: output file %s already exists, use -f to override\n", outfilename);
2023                 return 1;
2024         }
2025
2026         if(option_values.force_raw_format)
2027                 output_format = FORMAT_RAW;
2028         else if(
2029                 option_values.force_aiff_format ||
2030                 (strlen(outfilename) >= 4 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-4), ".aif")) ||
2031                 (strlen(outfilename) >= 5 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-5), ".aiff"))
2032         )
2033                 output_format = FORMAT_AIFF;
2034         else if(
2035                 option_values.force_rf64_format ||
2036                 (strlen(outfilename) >= 5 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-5), ".rf64"))
2037         )
2038                 output_format = FORMAT_RF64;
2039         else if(
2040                 option_values.force_wave64_format ||
2041                 (strlen(outfilename) >= 4 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-4), ".w64"))
2042         )
2043                 output_format = FORMAT_WAVE64;
2044         else
2045                 output_format = FORMAT_WAVE;
2046
2047         if(!option_values.test_only && !option_values.analyze) {
2048                 if(output_format == FORMAT_RAW && (option_values.format_is_big_endian < 0 || option_values.format_is_unsigned_samples < 0))
2049                         return usage_error("ERROR: for decoding to a raw file you must specify a value for --endian and --sign\n");
2050         }
2051
2052         if(option_values.keep_foreign_metadata) {
2053                 if(0 == strcmp(infilename, "-") || 0 == strcmp(outfilename, "-"))
2054                         return usage_error("ERROR: --keep-foreign-metadata cannot be used when decoding from stdin or to stdout\n");
2055                 if(output_format != FORMAT_WAVE && output_format != FORMAT_WAVE64 && output_format != FORMAT_RF64 && output_format != FORMAT_AIFF && output_format != FORMAT_AIFF_C)
2056                         return usage_error("ERROR: --keep-foreign-metadata can only be used with WAVE, Wave64, RF64, or AIFF output\n");
2057         }
2058
2059         if(option_values.use_ogg)
2060                 treat_as_ogg = true;
2061         else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".oga"))
2062                 treat_as_ogg = true;
2063         else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".ogg"))
2064                 treat_as_ogg = true;
2065         else
2066                 treat_as_ogg = false;
2067
2068 #if !FLAC__HAS_OGG
2069         if(treat_as_ogg) {
2070                 flac__utils_printf(stderr, 1, "%s: Ogg support has not been built into this copy of flac\n", infilename);
2071                 return 1;
2072         }
2073 #endif
2074
2075         if(!flac__utils_parse_skip_until_specification(option_values.skip_specification, &decode_options.skip_specification) || decode_options.skip_specification.is_relative)
2076                 return usage_error("ERROR: invalid value for --skip\n");
2077
2078         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 */
2079                 return usage_error("ERROR: invalid value for --until\n");
2080         /* if there is no "--until" we want to default to "--until=-0" */
2081         if(0 == option_values.until_specification)
2082                 decode_options.until_specification.is_relative = true;
2083
2084         if(option_values.cue_specification) {
2085                 if(!flac__utils_parse_cue_specification(option_values.cue_specification, &decode_options.cue_specification))
2086                         return usage_error("ERROR: invalid value for --cue\n");
2087                 decode_options.has_cue_specification = true;
2088         }
2089         else
2090                 decode_options.has_cue_specification = false;
2091
2092         decode_options.treat_warnings_as_errors = option_values.treat_warnings_as_errors;
2093         decode_options.continue_through_decode_errors = option_values.continue_through_decode_errors;
2094         decode_options.replaygain_synthesis_spec = option_values.replaygain_synthesis_spec;
2095 #if FLAC__HAS_OGG
2096         decode_options.is_ogg = treat_as_ogg;
2097         decode_options.use_first_serial_number = !option_values.has_serial_number;
2098         decode_options.serial_number = option_values.serial_number;
2099 #endif
2100         decode_options.channel_map_none = option_values.channel_map_none;
2101         decode_options.format = output_format;
2102
2103         if(output_format == FORMAT_RAW) {
2104                 decode_options.format_options.raw.is_big_endian = option_values.format_is_big_endian;
2105                 decode_options.format_options.raw.is_unsigned_samples = option_values.format_is_unsigned_samples;
2106
2107                 retval = flac__decode_file(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, decode_options);
2108         }
2109         else {
2110                 decode_options.format_options.iff.foreign_metadata = 0;
2111
2112                 /* initialize foreign metadata if requested */
2113                 if(option_values.keep_foreign_metadata) {
2114                         decode_options.format_options.iff.foreign_metadata =
2115                                 flac__foreign_metadata_new(
2116                                         output_format==FORMAT_WAVE || output_format==FORMAT_RF64?
2117                                                 FOREIGN_BLOCK_TYPE__RIFF :
2118                                         output_format==FORMAT_WAVE64?
2119                                                 FOREIGN_BLOCK_TYPE__WAVE64 :
2120                                                 FOREIGN_BLOCK_TYPE__AIFF
2121                                 );
2122                         if(0 == decode_options.format_options.iff.foreign_metadata) {
2123                                 flac__utils_printf(stderr, 1, "ERROR: creating foreign metadata object\n");
2124                                 return 1;
2125                         }
2126                 }
2127
2128                 retval = flac__decode_file(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, decode_options);
2129
2130                 if(decode_options.format_options.iff.foreign_metadata)
2131                         flac__foreign_metadata_delete(decode_options.format_options.iff.foreign_metadata);
2132         }
2133
2134         if(retval == 0 && strcmp(infilename, "-")) {
2135                 if(option_values.preserve_modtime && strcmp(outfilename, "-"))
2136                         grabbag__file_copy_metadata(infilename, outfilename);
2137                 if(option_values.delete_input && !option_values.test_only && !option_values.analyze)
2138                         unlink(infilename);
2139         }
2140
2141         return retval;
2142 }
2143
2144 const char *get_encoded_outfilename(const char *infilename)
2145 {
2146         const char *suffix = (option_values.use_ogg? ".oga" : ".flac");
2147         return get_outfilename(infilename, suffix);
2148 }
2149
2150 const char *get_decoded_outfilename(const char *infilename)
2151 {
2152         const char *suffix;
2153         if(option_values.analyze) {
2154                 suffix = ".ana";
2155         }
2156         else if(option_values.force_raw_format) {
2157                 suffix = ".raw";
2158         }
2159         else if(option_values.force_aiff_format) {
2160                 suffix = ".aiff";
2161         }
2162         else if(option_values.force_rf64_format) {
2163                 suffix = ".rf64";
2164         }
2165         else if(option_values.force_wave64_format) {
2166                 suffix = ".w64";
2167         }
2168         else {
2169                 suffix = ".wav";
2170         }
2171         return get_outfilename(infilename, suffix);
2172 }
2173
2174 const char *get_outfilename(const char *infilename, const char *suffix)
2175 {
2176         if(0 == option_values.cmdline_forced_outfilename) {
2177                 static char buffer[4096]; /* @@@ bad MAGIC NUMBER */
2178
2179                 if(0 == strcmp(infilename, "-") || option_values.force_to_stdout) {
2180                         strcpy(buffer, "-");
2181                 }
2182                 else {
2183                         char *p;
2184                         if (flac__strlcpy(buffer, option_values.output_prefix? option_values.output_prefix : "", sizeof buffer) >= sizeof buffer)
2185                                 return 0;
2186                         if (flac__strlcat(buffer, infilename, sizeof buffer) >= sizeof buffer)
2187                                 return 0;
2188                         /* the . must come after any / to avoid problems with, e.g. "some.directory/extensionless-filename" */
2189                         if(0 == (p = strrchr(buffer, '.')) || strchr(p, '/')) {
2190                                 if (flac__strlcat(buffer, suffix, sizeof buffer) >= sizeof buffer)
2191                                         return 0;
2192                         }
2193                         else {
2194                                 *p = '\0';
2195                                 if (flac__strlcat(buffer, suffix, sizeof buffer) >= sizeof buffer)
2196                                         return 0;
2197                         }
2198                 }
2199                 return buffer;
2200         }
2201         else
2202                 return option_values.cmdline_forced_outfilename;
2203 }
2204
2205 void die(const char *message)
2206 {
2207         FLAC__ASSERT(0 != message);
2208         flac__utils_printf(stderr, 1, "ERROR: %s\n", message);
2209         exit(1);
2210 }
2211
2212 int conditional_fclose(FILE *f)
2213 {
2214         if(f == 0 || f == stdin || f == stdout)
2215                 return 0;
2216         else
2217                 return fclose(f);
2218 }
2219
2220 char *local_strdup(const char *source)
2221 {
2222         char *ret;
2223         FLAC__ASSERT(0 != source);
2224         if(0 == (ret = strdup(source)))
2225                 die("out of memory during strdup()");
2226         return ret;
2227 }
2228
2229 #ifdef _MSC_VER
2230 /* There's no strtoll() in MSVC6 so we just write a specialized one */
2231 FLAC__int64 local__strtoll(const char *src, char **endptr)
2232 {
2233         FLAC__bool neg = false;
2234         FLAC__int64 ret = 0;
2235         int c;
2236         FLAC__ASSERT(0 != src);
2237         if(*src == '-') {
2238                 neg = true;
2239                 src++;
2240         }
2241         while(0 != (c = *src)) {
2242                 c -= '0';
2243                 if(c >= 0 && c <= 9)
2244                         ret = (ret * 10) + c;
2245                 else
2246                         break;
2247                 src++;
2248         }
2249         if(endptr)
2250                 *endptr = (char*)src;
2251         return neg? -ret : ret;
2252 }
2253 #endif