src/flac/main.c

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