src/flac/main.c

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