src/flac/main.c

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