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