src/flac/decode.c

   1 /* flac - Command-line FLAC encoder/decoder
   2  * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007,2008  Josh Coalson
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  17  */
  18
  19 #if HAVE_CONFIG_H
  20 #  include <config.h>
  21 #endif
  22
  23 #if defined _WIN32 && !defined __CYGWIN__
  24 /* where MSVC puts unlink() */
  25 # include <io.h>
  26 #else
  27 # include <unistd.h>
  28 #endif
  29 #if defined _MSC_VER || defined __MINGW32__
  30 #include <sys/types.h> /* for off_t */
  31 #if _MSC_VER <= 1600 /* @@@ [2G limit] */
  32 #define fseeko fseek
  33 #define ftello ftell
  34 #endif
  35 #endif
  36 #include <errno.h>
  37 #include <math.h> /* for floor() */
  38 #include <stdio.h> /* for FILE etc. */
  39 #include <string.h> /* for strcmp(), strerror() */
  40 #include "FLAC/all.h"
  41 #include "share/grabbag.h"
  42 #include "share/replaygain_synthesis.h"
  43 #include "decode.h"
  44
  45 typedef struct {
  46 #if FLAC__HAS_OGG
  47         FLAC__bool is_ogg;
  48         FLAC__bool use_first_serial_number;
  49         long serial_number;
  50 #endif
  51
  52         FileFormat format;
  53         FLAC__bool treat_warnings_as_errors;
  54         FLAC__bool continue_through_decode_errors;
  55         FLAC__bool channel_map_none;
  56
  57         struct {
  58                 replaygain_synthesis_spec_t spec;
  59                 FLAC__bool apply; /* 'spec.apply' is just a request; this 'apply' means we actually parsed the RG tags and are ready to go */
  60                 double scale;
  61                 DitherContext dither_context;
  62         } replaygain;
  63
  64         FLAC__bool test_only;
  65         FLAC__bool analysis_mode;
  66         analysis_options aopts;
  67         utils__SkipUntilSpecification *skip_specification;
  68         utils__SkipUntilSpecification *until_specification; /* a canonicalized value of 0 mean end-of-stream (i.e. --until=-0) */
  69         utils__CueSpecification *cue_specification;
  70
  71         const char *inbasefilename;
  72         const char *infilename;
  73         const char *outfilename;
  74
  75         FLAC__uint64 samples_processed;
  76         unsigned frame_counter;
  77         FLAC__bool abort_flag;
  78         FLAC__bool aborting_due_to_until; /* true if we intentionally abort decoding prematurely because we hit the --until point */
  79         FLAC__bool aborting_due_to_unparseable; /* true if we abort decoding because we hit an unparseable frame */
  80
  81         FLAC__bool iff_headers_need_fixup;
  82
  83         FLAC__bool is_big_endian;
  84         FLAC__bool is_unsigned_samples;
  85         FLAC__bool got_stream_info;
  86         FLAC__bool has_md5sum;
  87         FLAC__uint64 total_samples;
  88         unsigned bps;
  89         unsigned channels;
  90         unsigned sample_rate;
  91         FLAC__uint32 channel_mask;
  92
  93         /* these are used only in analyze mode */
  94         FLAC__uint64 decode_position;
  95
  96         FLAC__StreamDecoder *decoder;
  97
  98         FILE *fout;
  99
 100         foreign_metadata_t *foreign_metadata; /* NULL unless --keep-foreign-metadata requested */
 101         off_t fm_offset1, fm_offset2, fm_offset3;
 102 } DecoderSession;
 103
 104
 105 static FLAC__bool is_big_endian_host_;
 106
 107
 108 /*
 109  * local routines
 110  */
 111 static FLAC__bool DecoderSession_construct(DecoderSession *d, FLAC__bool is_ogg, FLAC__bool use_first_serial_number, long serial_number, FileFormat format, FLAC__bool treat_warnings_as_errors, FLAC__bool continue_through_decode_errors, FLAC__bool channel_map_none, replaygain_synthesis_spec_t replaygain_synthesis_spec, FLAC__bool analysis_mode, analysis_options aopts, utils__SkipUntilSpecification *skip_specification, utils__SkipUntilSpecification *until_specification, utils__CueSpecification *cue_specification, foreign_metadata_t *foreign_metadata, const char *infilename, const char *outfilename);
 112 static void DecoderSession_destroy(DecoderSession *d, FLAC__bool error_occurred);
 113 static FLAC__bool DecoderSession_init_decoder(DecoderSession *d, const char *infilename);
 114 static FLAC__bool DecoderSession_process(DecoderSession *d);
 115 static int DecoderSession_finish_ok(DecoderSession *d);
 116 static int DecoderSession_finish_error(DecoderSession *d);
 117 static FLAC__bool canonicalize_until_specification(utils__SkipUntilSpecification *spec, const char *inbasefilename, unsigned sample_rate, FLAC__uint64 skip, FLAC__uint64 total_samples_in_input);
 118 static FLAC__bool write_iff_headers(FILE *f, DecoderSession *decoder_session, FLAC__uint64 samples);
 119 static FLAC__bool write_riff_wave_fmt_chunk_body(FILE *f, FLAC__bool is_waveformatextensible, unsigned bps, unsigned channels, unsigned sample_rate, FLAC__uint32 channel_mask);
 120 static FLAC__bool write_aiff_form_comm_chunk(FILE *f, FLAC__uint64 samples, unsigned bps, unsigned channels, unsigned sample_rate);
 121 static FLAC__bool write_little_endian_uint16(FILE *f, FLAC__uint16 val);
 122 static FLAC__bool write_little_endian_uint32(FILE *f, FLAC__uint32 val);
 123 static FLAC__bool write_little_endian_uint64(FILE *f, FLAC__uint64 val);
 124 static FLAC__bool write_big_endian_uint16(FILE *f, FLAC__uint16 val);
 125 static FLAC__bool write_big_endian_uint32(FILE *f, FLAC__uint32 val);
 126 static FLAC__bool write_sane_extended(FILE *f, unsigned val);
 127 static FLAC__bool fixup_iff_headers(DecoderSession *d);
 128 static FLAC__StreamDecoderWriteStatus write_callback(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
 129 static void metadata_callback(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
 130 static void error_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
 131 static void print_error_with_init_status(const DecoderSession *d, const char *message, FLAC__StreamDecoderInitStatus init_status);
 132 static void print_error_with_state(const DecoderSession *d, const char *message);
 133 static void print_stats(const DecoderSession *decoder_session);
 134
 135
 136 /*
 137  * public routines
 138  */
 139 int flac__decode_file(const char *infilename, const char *outfilename, FLAC__bool analysis_mode, analysis_options aopts, decode_options_t options)
 140 {
 141         DecoderSession decoder_session;
 142
 143         FLAC__ASSERT(
 144                 options.format == FORMAT_WAVE ||
 145                 options.format == FORMAT_WAVE64 ||
 146                 options.format == FORMAT_RF64 ||
 147                 options.format == FORMAT_AIFF ||
 148                 options.format == FORMAT_AIFF_C ||
 149                 options.format == FORMAT_RAW
 150         );
 151
 152         if(options.format == FORMAT_RAW) {
 153                 decoder_session.is_big_endian = options.format_options.raw.is_big_endian;
 154                 decoder_session.is_unsigned_samples = options.format_options.raw.is_unsigned_samples;
 155         }
 156
 157         if(!
 158                 DecoderSession_construct(
 159                         &decoder_session,
 160 #if FLAC__HAS_OGG
 161                         options.is_ogg,
 162                         options.use_first_serial_number,
 163                         options.serial_number,
 164 #else
 165                         /*is_ogg=*/false,
 166                         /*use_first_serial_number=*/false,
 167                         /*serial_number=*/0,
 168 #endif
 169                         options.format,
 170                         options.treat_warnings_as_errors,
 171                         options.continue_through_decode_errors,
 172                         options.channel_map_none,
 173                         options.replaygain_synthesis_spec,
 174                         analysis_mode,
 175                         aopts,
 176                         &options.skip_specification,
 177                         &options.until_specification,
 178                         options.has_cue_specification? &options.cue_specification : 0,
 179                         options.format == FORMAT_RAW? NULL : options.format_options.iff.foreign_metadata,
 180                         infilename,
 181                         outfilename
 182                 )
 183         )
 184                 return 1;
 185
 186         if(!DecoderSession_init_decoder(&decoder_session, infilename))
 187                 return DecoderSession_finish_error(&decoder_session);
 188
 189         if(!DecoderSession_process(&decoder_session))
 190                 return DecoderSession_finish_error(&decoder_session);
 191
 192         return DecoderSession_finish_ok(&decoder_session);
 193 }
 194
 195 FLAC__bool DecoderSession_construct(DecoderSession *d, FLAC__bool is_ogg, FLAC__bool use_first_serial_number, long serial_number, FileFormat format, FLAC__bool treat_warnings_as_errors, FLAC__bool continue_through_decode_errors, FLAC__bool channel_map_none, replaygain_synthesis_spec_t replaygain_synthesis_spec, FLAC__bool analysis_mode, analysis_options aopts, utils__SkipUntilSpecification *skip_specification, utils__SkipUntilSpecification *until_specification, utils__CueSpecification *cue_specification, foreign_metadata_t *foreign_metadata, const char *infilename, const char *outfilename)
 196 {
 197 #if FLAC__HAS_OGG
 198         d->is_ogg = is_ogg;
 199         d->use_first_serial_number = use_first_serial_number;
 200         d->serial_number = serial_number;
 201 #else
 202         (void)is_ogg;
 203         (void)use_first_serial_number;
 204         (void)serial_number;
 205 #endif
 206
 207         d->format = format;
 208         d->treat_warnings_as_errors = treat_warnings_as_errors;
 209         d->continue_through_decode_errors = continue_through_decode_errors;
 210         d->channel_map_none = channel_map_none;
 211         d->replaygain.spec = replaygain_synthesis_spec;
 212         d->replaygain.apply = false;
 213         d->replaygain.scale = 0.0;
 214         /* d->replaygain.dither_context gets initialized later once we know the sample resolution */
 215         d->test_only = (0 == outfilename);
 216         d->analysis_mode = analysis_mode;
 217         d->aopts = aopts;
 218         d->skip_specification = skip_specification;
 219         d->until_specification = until_specification;
 220         d->cue_specification = cue_specification;
 221
 222         d->inbasefilename = grabbag__file_get_basename(infilename);
 223         d->infilename = infilename;
 224         d->outfilename = outfilename;
 225
 226         d->samples_processed = 0;
 227         d->frame_counter = 0;
 228         d->abort_flag = false;
 229         d->aborting_due_to_until = false;
 230         d->aborting_due_to_unparseable = false;
 231
 232         d->iff_headers_need_fixup = false;
 233
 234         d->total_samples = 0;
 235         d->got_stream_info = false;
 236         d->has_md5sum = false;
 237         d->bps = 0;
 238         d->channels = 0;
 239         d->sample_rate = 0;
 240         d->channel_mask = 0;
 241
 242         d->decode_position = 0;
 243
 244         d->decoder = 0;
 245
 246         d->fout = 0; /* initialized with an open file later if necessary */
 247
 248         d->foreign_metadata = foreign_metadata;
 249
 250         FLAC__ASSERT(!(d->test_only && d->analysis_mode));
 251
 252         if(!d->test_only) {
 253                 if(0 == strcmp(outfilename, "-")) {
 254                         d->fout = grabbag__file_get_binary_stdout();
 255                 }
 256                 else {
 257                         if(0 == (d->fout = fopen(outfilename, "wb"))) {
 258                                 flac__utils_printf(stderr, 1, "%s: ERROR: can't open output file %s: %s\n", d->inbasefilename, outfilename, strerror(errno));
 259                                 DecoderSession_destroy(d, /*error_occurred=*/true);
 260                                 return false;
 261                         }
 262                 }
 263         }
 264
 265         if(analysis_mode)
 266                 flac__analyze_init(aopts);
 267
 268         return true;
 269 }
 270
 271 void DecoderSession_destroy(DecoderSession *d, FLAC__bool error_occurred)
 272 {
 273         if(0 != d->fout && d->fout != stdout) {
 274                 fclose(d->fout);
 275                 if(error_occurred)
 276                         unlink(d->outfilename);
 277         }
 278 }
 279
 280 FLAC__bool DecoderSession_init_decoder(DecoderSession *decoder_session, const char *infilename)
 281 {
 282         FLAC__StreamDecoderInitStatus init_status;
 283         FLAC__uint32 test = 1;
 284
 285         is_big_endian_host_ = (*((FLAC__byte*)(&test)))? false : true;
 286
 287         if(!decoder_session->analysis_mode && !decoder_session->test_only && decoder_session->foreign_metadata) {
 288                 const char *error;
 289                 if(!flac__foreign_metadata_read_from_flac(decoder_session->foreign_metadata, infilename, &error)) {
 290                         flac__utils_printf(stderr, 1, "%s: ERROR reading foreign metadata: %s\n", decoder_session->inbasefilename, error);
 291                         return false;
 292                 }
 293         }
 294
 295         decoder_session->decoder = FLAC__stream_decoder_new();
 296
 297         if(0 == decoder_session->decoder) {
 298                 flac__utils_printf(stderr, 1, "%s: ERROR creating the decoder instance\n", decoder_session->inbasefilename);
 299                 return false;
 300         }
 301
 302         FLAC__stream_decoder_set_md5_checking(decoder_session->decoder, true);
 303         if (0 != decoder_session->cue_specification)
 304                 FLAC__stream_decoder_set_metadata_respond(decoder_session->decoder, FLAC__METADATA_TYPE_CUESHEET);
 305         if (decoder_session->replaygain.spec.apply)
 306                 FLAC__stream_decoder_set_metadata_respond(decoder_session->decoder, FLAC__METADATA_TYPE_VORBIS_COMMENT);
 307
 308 #if FLAC__HAS_OGG
 309         if(decoder_session->is_ogg) {
 310                 if(!decoder_session->use_first_serial_number)
 311                         FLAC__stream_decoder_set_ogg_serial_number(decoder_session->decoder, decoder_session->serial_number);
 312                 init_status = FLAC__stream_decoder_init_ogg_file(decoder_session->decoder, strcmp(infilename, "-")? infilename : 0, write_callback, metadata_callback, error_callback, /*client_data=*/decoder_session);
 313         }
 314         else
 315 #endif
 316         {
 317                 init_status = FLAC__stream_decoder_init_file(decoder_session->decoder, strcmp(infilename, "-")? infilename : 0, write_callback, metadata_callback, error_callback, /*client_data=*/decoder_session);
 318         }
 319
 320         if(init_status != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
 321                 print_error_with_init_status(decoder_session, "ERROR initializing decoder", init_status);
 322                 return false;
 323         }
 324
 325         return true;
 326 }
 327
 328 FLAC__bool DecoderSession_process(DecoderSession *d)
 329 {
 330         if(!FLAC__stream_decoder_process_until_end_of_metadata(d->decoder)) {
 331                 flac__utils_printf(stderr, 2, "\n");
 332                 print_error_with_state(d, "ERROR while decoding metadata");
 333                 return false;
 334         }
 335         if(FLAC__stream_decoder_get_state(d->decoder) > FLAC__STREAM_DECODER_END_OF_STREAM) {
 336                 flac__utils_printf(stderr, 2, "\n");
 337                 print_error_with_state(d, "ERROR during metadata decoding");
 338                 if(!d->continue_through_decode_errors)
 339                         return false;
 340         }
 341
 342         if(d->abort_flag)
 343                 return false;
 344
 345         /* set channel mapping */
 346         if(!d->channel_map_none) {
 347                 /* currently FLAC order matches SMPTE/WAVEFORMATEXTENSIBLE order, so no reordering is necessary; see encode.c */
 348                 /* only the channel mask must be set if it was not already picked up from the WAVEFORMATEXTENSIBLE_CHANNEL_MASK tag */
 349                 if(d->channels == 1) {
 350                         if(d->channel_mask == 0)
 351                                 d->channel_mask = 0x0001;
 352                 }
 353                 else if(d->channels == 2) {
 354                         if(d->channel_mask == 0)
 355                                 d->channel_mask = 0x0003;
 356                 }
 357                 else if(d->channels == 3) {
 358                         if(d->channel_mask == 0)
 359                                 d->channel_mask = 0x0007;
 360                 }
 361                 else if(d->channels == 4) {
 362                         if(d->channel_mask == 0)
 363                                 d->channel_mask = 0x0033;
 364                 }
 365                 else if(d->channels == 5) {
 366                         if(d->channel_mask == 0)
 367                                 d->channel_mask = 0x0607;
 368                 }
 369                 else if(d->channels == 6) {
 370                         if(d->channel_mask == 0)
 371                                 d->channel_mask = 0x060f;
 372                 }
 373         }
 374
 375         /* write the WAVE/AIFF headers if necessary */
 376         if(!d->analysis_mode && !d->test_only && d->format != FORMAT_RAW) {
 377                 if(!write_iff_headers(d->fout, d, d->total_samples)) {
 378                         d->abort_flag = true;
 379                         return false;
 380                 }
 381         }
 382
 383         if(d->skip_specification->value.samples > 0) {
 384                 const FLAC__uint64 skip = (FLAC__uint64)d->skip_specification->value.samples;
 385
 386                 if(!FLAC__stream_decoder_seek_absolute(d->decoder, skip)) {
 387                         print_error_with_state(d, "ERROR seeking while skipping bytes");
 388                         return false;
 389                 }
 390         }
 391         if(!FLAC__stream_decoder_process_until_end_of_stream(d->decoder) && !d->aborting_due_to_until) {
 392                 flac__utils_printf(stderr, 2, "\n");
 393                 print_error_with_state(d, "ERROR while decoding data");
 394                 if(!d->continue_through_decode_errors)
 395                         return false;
 396         }
 397         if(
 398                 (d->abort_flag && !(d->aborting_due_to_until || d->continue_through_decode_errors)) ||
 399                 (FLAC__stream_decoder_get_state(d->decoder) > FLAC__STREAM_DECODER_END_OF_STREAM && !d->aborting_due_to_until)
 400         ) {
 401                 flac__utils_printf(stderr, 2, "\n");
 402                 print_error_with_state(d, "ERROR during decoding");
 403                 return false;
 404         }
 405
 406         /* write padding bytes for alignment if necessary */
 407         if(!d->analysis_mode && !d->test_only && d->format != FORMAT_RAW) {
 408                 const FLAC__uint64 data_size = d->total_samples * d->channels * ((d->bps+7)/8);
 409                 unsigned padding;
 410                 if(d->format != FORMAT_WAVE64) {
 411                         padding = (unsigned)(data_size & 1);
 412                 }
 413                 else {
 414                         /* 8-byte alignment for Wave64 */
 415                         padding = (8 - (unsigned)(data_size & 7)) & 7;
 416                 }
 417                 for( ; padding > 0; --padding) {
 418                         if(flac__utils_fwrite("\000", 1, 1, d->fout) != 1) {
 419                                 print_error_with_state(
 420                                         d,
 421                                         d->format == FORMAT_WAVE?  "ERROR writing pad byte to WAVE data chunk" :
 422                                         d->format == FORMAT_WAVE64?  "ERROR writing pad bytes to WAVE64 data chunk" :
 423                                         d->format == FORMAT_RF64?  "ERROR writing pad byte to RF64 data chunk" :
 424                                         "ERROR writing pad byte to AIFF SSND chunk"
 425                                 );
 426                                 return false;
 427                         }
 428                 }
 429         }
 430
 431         return true;
 432 }
 433
 434 int DecoderSession_finish_ok(DecoderSession *d)
 435 {
 436         FLAC__bool ok = true, md5_failure = false;
 437
 438         if(d->decoder) {
 439                 md5_failure = !FLAC__stream_decoder_finish(d->decoder) && !d->aborting_due_to_until;
 440                 print_stats(d);
 441                 FLAC__stream_decoder_delete(d->decoder);
 442         }
 443         if(d->analysis_mode)
 444                 flac__analyze_finish(d->aopts);
 445         if(md5_failure) {
 446                 flac__utils_printf(stderr, 1, "\r%s: ERROR, MD5 signature mismatch\n", d->inbasefilename);
 447                 ok = d->continue_through_decode_errors;
 448         }
 449         else {
 450                 if(!d->got_stream_info) {
 451                         flac__utils_printf(stderr, 1, "\r%s: WARNING, cannot check MD5 signature since there was no STREAMINFO\n", d->inbasefilename);
 452                         ok = !d->treat_warnings_as_errors;
 453                 }
 454                 else if(!d->has_md5sum) {
 455                         flac__utils_printf(stderr, 1, "\r%s: WARNING, cannot check MD5 signature since it was unset in the STREAMINFO\n", d->inbasefilename);
 456                         ok = !d->treat_warnings_as_errors;
 457                 }
 458                 flac__utils_printf(stderr, 2, "\r%s: %s         \n", d->inbasefilename, d->test_only? "ok           ":d->analysis_mode?"done           ":"done");
 459         }
 460         DecoderSession_destroy(d, /*error_occurred=*/!ok);
 461         if(!d->analysis_mode && !d->test_only && d->format != FORMAT_RAW) {
 462                 if(d->iff_headers_need_fixup || (!d->got_stream_info && strcmp(d->outfilename, "-"))) {
 463                         if(!fixup_iff_headers(d))
 464                                 return 1;
 465                 }
 466                 if(d->foreign_metadata) {
 467                         const char *error;
 468                         if(!flac__foreign_metadata_write_to_iff(d->foreign_metadata, d->infilename, d->outfilename, d->fm_offset1, d->fm_offset2, d->fm_offset3, &error)) {
 469                                 flac__utils_printf(stderr, 1, "ERROR updating foreign metadata from %s to %s: %s\n", d->infilename, d->outfilename, error);
 470                                 return 1;
 471                         }
 472                 }
 473         }
 474         return ok? 0 : 1;
 475 }
 476
 477 int DecoderSession_finish_error(DecoderSession *d)
 478 {
 479         if(d->decoder) {
 480                 (void)FLAC__stream_decoder_finish(d->decoder);
 481                 FLAC__stream_decoder_delete(d->decoder);
 482         }
 483         if(d->analysis_mode)
 484                 flac__analyze_finish(d->aopts);
 485         DecoderSession_destroy(d, /*error_occurred=*/true);
 486         return 1;
 487 }
 488
 489 FLAC__bool canonicalize_until_specification(utils__SkipUntilSpecification *spec, const char *inbasefilename, unsigned sample_rate, FLAC__uint64 skip, FLAC__uint64 total_samples_in_input)
 490 {
 491         /* convert from mm:ss.sss to sample number if necessary */
 492         flac__utils_canonicalize_skip_until_specification(spec, sample_rate);
 493
 494         /* special case: if "--until=-0", use the special value '0' to mean "end-of-stream" */
 495         if(spec->is_relative && spec->value.samples == 0) {
 496                 spec->is_relative = false;
 497                 return true;
 498         }
 499
 500         /* in any other case the total samples in the input must be known */
 501         if(total_samples_in_input == 0) {
 502                 flac__utils_printf(stderr, 1, "%s: ERROR, cannot use --until when FLAC metadata has total sample count of 0\n", inbasefilename);
 503                 return false;
 504         }
 505
 506         FLAC__ASSERT(spec->value_is_samples);
 507
 508         /* convert relative specifications to absolute */
 509         if(spec->is_relative) {
 510                 if(spec->value.samples <= 0)
 511                         spec->value.samples += (FLAC__int64)total_samples_in_input;
 512                 else
 513                         spec->value.samples += skip;
 514                 spec->is_relative = false;
 515         }
 516
 517         /* error check */
 518         if(spec->value.samples < 0) {
 519                 flac__utils_printf(stderr, 1, "%s: ERROR, --until value is before beginning of input\n", inbasefilename);
 520                 return false;
 521         }
 522         if((FLAC__uint64)spec->value.samples <= skip) {
 523                 flac__utils_printf(stderr, 1, "%s: ERROR, --until value is before --skip point\n", inbasefilename);
 524                 return false;
 525         }
 526         if((FLAC__uint64)spec->value.samples > total_samples_in_input) {
 527                 flac__utils_printf(stderr, 1, "%s: ERROR, --until value is after end of input\n", inbasefilename);
 528                 return false;
 529         }
 530
 531         return true;
 532 }
 533
 534 FLAC__bool write_iff_headers(FILE *f, DecoderSession *decoder_session, FLAC__uint64 samples)
 535 {
 536         const FileFormat format = decoder_session->format;
 537         const char *fmt_desc =
 538                 format==FORMAT_WAVE? "WAVE" :
 539                 format==FORMAT_WAVE64? "Wave64" :
 540                 format==FORMAT_RF64? "RF64" :
 541                 "AIFF";
 542         const FLAC__bool is_waveformatextensible =
 543                 (format == FORMAT_WAVE || format == FORMAT_WAVE64 || format == FORMAT_RF64) &&
 544                 (
 545                         decoder_session->channel_mask == 2 ||
 546                         decoder_session->channel_mask > 3 ||
 547                         decoder_session->bps%8 ||
 548                         decoder_session->channels > 2
 549                 );
 550         const FLAC__uint64 data_size = samples * decoder_session->channels * ((decoder_session->bps+7)/8);
 551         const FLAC__uint64 aligned_data_size =
 552                 format == FORMAT_WAVE64?
 553                         (data_size+7) & (~(FLAC__uint64)7) :
 554                         (data_size+1) & (~(FLAC__uint64)1);
 555
 556         FLAC__uint64 iff_size;
 557         unsigned foreign_metadata_size = 0; /* size of all non-audio non-fmt/COMM foreign metadata chunks */
 558         foreign_metadata_t *fm = decoder_session->foreign_metadata;
 559         size_t i;
 560
 561         FLAC__ASSERT(
 562                 format == FORMAT_WAVE ||
 563                 format == FORMAT_WAVE64 ||
 564                 format == FORMAT_RF64 ||
 565                 format == FORMAT_AIFF ||
 566                 format == FORMAT_AIFF_C
 567         );
 568
 569         if(samples == 0) {
 570                 if(f == stdout) {
 571                         flac__utils_printf(stderr, 1, "%s: WARNING, don't have accurate sample count available for %s header.\n", decoder_session->inbasefilename, fmt_desc);
 572                         flac__utils_printf(stderr, 1, "             Generated %s file will have a data chunk size of 0.  Try\n", fmt_desc);
 573                         flac__utils_printf(stderr, 1, "             decoding directly to a file instead.\n");
 574                         if(decoder_session->treat_warnings_as_errors)
 575                                 return false;
 576                 }
 577                 else {
 578                         decoder_session->iff_headers_need_fixup = true;
 579                 }
 580         }
 581
 582         if(fm) {
 583                 FLAC__ASSERT(fm->format_block);
 584                 FLAC__ASSERT(fm->audio_block);
 585                 FLAC__ASSERT(fm->format_block < fm->audio_block);
 586                 /* calc foreign metadata size; we always skip the first chunk, ds64 chunk, format chunk, and sound chunk since we write our own */
 587                 for(i = format==FORMAT_RF64?2:1; i < fm->num_blocks; i++) {
 588                         if(i != fm->format_block && i != fm->audio_block)
 589                                 foreign_metadata_size += fm->blocks[i].size;
 590                 }
 591         }
 592
 593         if(samples == 0)
 594                 iff_size = 0;
 595         else if(format == FORMAT_WAVE || format == FORMAT_RF64)
 596                 /* 4 for WAVE form bytes */
 597                 /* +{36,0} for ds64 chunk */
 598                 /* +8+{40,16} for fmt chunk header and body */
 599                 /* +8 for data chunk header */
 600                 iff_size = 4 + (format==FORMAT_RF64?36:0) + 8+(is_waveformatextensible?40:16) + 8 + foreign_metadata_size + aligned_data_size;
 601         else if(format == FORMAT_WAVE64)
 602                 /* 16+8 for RIFF GUID and size field */
 603                 /* +16 for WAVE GUID */
 604                 /* +16+8+{40,16} for fmt chunk header (GUID and size field) and body */
 605                 /* +16+8 for data chunk header (GUID and size field) */
 606                 iff_size = 16+8 + 16 + 16+8+(is_waveformatextensible?40:16) + 16+8 + foreign_metadata_size + aligned_data_size;
 607         else /* AIFF */
 608                 /* @@@@@@ can ssnd_offset_size be odd and hence screw up our alignment logic? */
 609                 iff_size = 46 + foreign_metadata_size + aligned_data_size + (fm? fm->ssnd_offset_size : 0);
 610
 611         if(format != FORMAT_WAVE64 && format != FORMAT_RF64 && iff_size >= 0xFFFFFFF4) {
 612                 flac__utils_printf(stderr, 1, "%s: ERROR: stream is too big to fit in a single %s file\n", decoder_session->inbasefilename, fmt_desc);
 613                 return false;
 614         }
 615
 616         if(format == FORMAT_WAVE || format == FORMAT_WAVE64 || format == FORMAT_RF64) {
 617                 /* RIFF header */
 618                 switch(format) {
 619                         case FORMAT_WAVE:
 620                                 if(flac__utils_fwrite("RIFF", 1, 4, f) != 4)
 621                                         return false;
 622                                 if(!write_little_endian_uint32(f, (FLAC__uint32)iff_size)) /* filesize-8 */
 623                                         return false;
 624                                 if(flac__utils_fwrite("WAVE", 1, 4, f) != 4)
 625                                         return false;
 626                                 break;
 627                         case FORMAT_WAVE64:
 628                                 /* RIFF GUID 66666972-912E-11CF-A5D6-28DB04C10000 */
 629                                 if(flac__utils_fwrite("\x72\x69\x66\x66\x2E\x91\xCF\x11\xD6\xA5\x28\xDB\x04\xC1\x00\x00", 1, 16, f) != 16)
 630                                         return false;
 631                                 if(!write_little_endian_uint64(f, iff_size))
 632                                         return false;
 633                                 /* WAVE GUID 65766177-ACF3-11D3-8CD1-00C04F8EDB8A */
 634                                 if(flac__utils_fwrite("\x77\x61\x76\x65\xF3\xAC\xD3\x11\xD1\x8C\x00\xC0\x4F\x8E\xDB\x8A", 1, 16, f) != 16)
 635                                         return false;
 636                                 break;
 637                         case FORMAT_RF64:
 638                                 if(flac__utils_fwrite("RF64", 1, 4, f) != 4)
 639                                         return false;
 640                                 if(!write_little_endian_uint32(f, 0xffffffff))
 641                                         return false;
 642                                 if(flac__utils_fwrite("WAVE", 1, 4, f) != 4)
 643                                         return false;
 644                                 break;
 645                         default:
 646                                 return false;
 647                 }
 648
 649                 /* ds64 chunk for RF64 */
 650                 if(format == FORMAT_RF64) {
 651                         if(flac__utils_fwrite("ds64", 1, 4, f) != 4)
 652                                 return false;
 653
 654                         if(!write_little_endian_uint32(f, 28)) /* chunk size */
 655                                 return false;
 656
 657                         if(!write_little_endian_uint64(f, iff_size))
 658                                 return false;
 659
 660                         if(!write_little_endian_uint64(f, data_size))
 661                                 return false;
 662
 663                         if(!write_little_endian_uint64(f, samples)) /*@@@@@@ correct? */
 664                                 return false;
 665
 666                         if(!write_little_endian_uint32(f, 0)) /* table size */
 667                                 return false;
 668                 }
 669
 670                 decoder_session->fm_offset1 = ftello(f);
 671
 672                 if(fm) {
 673                         /* seek forward to {allocate} or {skip over already-written chunks} before "fmt " */
 674                         for(i = format==FORMAT_RF64?2:1; i < fm->format_block; i++) {
 675                                 if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) {
 676                                         flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata before \"fmt \"\n", decoder_session->inbasefilename);
 677                                         return false;
 678                                 }
 679                         }
 680                 }
 681
 682                 if(format != FORMAT_WAVE64) {
 683                         if(flac__utils_fwrite("fmt ", 1, 4, f) != 4)
 684                                 return false;
 685                         if(!write_little_endian_uint32(f, is_waveformatextensible? 40 : 16)) /* chunk size */
 686                                 return false;
 687                 }
 688                 else { /* Wave64 */
 689                         /* fmt GUID 20746D66-ACF3-11D3-8CD1-00C04F8EDB8A */
 690                         if(flac__utils_fwrite("\x66\x6D\x74\x20\xF3\xAC\xD3\x11\xD1\x8C\x00\xC0\x4F\x8E\xDB\x8A", 1, 16, f) != 16)
 691                                 return false;
 692                         /* chunk size (+16+8 for GUID and size fields) */
 693                         if(!write_little_endian_uint64(f, 16+8+(is_waveformatextensible?40:16)))
 694                                 return false;
 695                 }
 696
 697                 if(!write_riff_wave_fmt_chunk_body(f, is_waveformatextensible, decoder_session->bps, decoder_session->channels, decoder_session->sample_rate, decoder_session->channel_mask))
 698                         return false;
 699
 700                 decoder_session->fm_offset2 = ftello(f);
 701
 702                 if(fm) {
 703                         /* seek forward to {allocate} or {skip over already-written chunks} after "fmt " but before "data" */
 704                         for(i = fm->format_block+1; i < fm->audio_block; i++) {
 705                                 if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) {
 706                                         flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata after \"fmt \"\n", decoder_session->inbasefilename);
 707                                         return false;
 708                                 }
 709                         }
 710                 }
 711
 712                 if(format != FORMAT_WAVE64) {
 713                         if(flac__utils_fwrite("data", 1, 4, f) != 4)
 714                                 return false;
 715                         if(!write_little_endian_uint32(f, format==FORMAT_RF64? 0xffffffff : (FLAC__uint32)data_size))
 716                                 return false;
 717                 }
 718                 else { /* Wave64 */
 719                         /* data GUID 61746164-ACF3-11D3-8CD1-00C04F8EDB8A */
 720                         if(flac__utils_fwrite("\x64\x61\x74\x61\xF3\xAC\xD3\x11\xD1\x8C\x00\xC0\x4F\x8E\xDB\x8A", 1, 16, f) != 16)
 721                                 return false;
 722                         /* +16+8 for GUID and size fields */
 723                         if(!write_little_endian_uint64(f, 16+8 + data_size))
 724                                 return false;
 725                 }
 726
 727                 decoder_session->fm_offset3 = ftello(f) + aligned_data_size;
 728         }
 729         else {
 730                 FLAC__uint32 ssnd_offset_size = (fm? fm->ssnd_offset_size : 0);
 731
 732                 if(flac__utils_fwrite("FORM", 1, 4, f) != 4)
 733                         return false;
 734
 735                 if(!write_big_endian_uint32(f, (FLAC__uint32)iff_size)) /* filesize-8 */
 736                         return false;
 737
 738                 if(flac__utils_fwrite("AIFF", 1, 4, f) != 4)
 739                         return false;
 740
 741                 decoder_session->fm_offset1 = ftello(f);
 742
 743                 if(fm) {
 744                         /* seek forward to {allocate} or {skip over already-written chunks} before "COMM" */
 745                         for(i = 1; i < fm->format_block; i++) {
 746                                 if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) {
 747                                         flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata before \"COMM\"\n", decoder_session->inbasefilename);
 748                                         return false;
 749                                 }
 750                         }
 751                 }
 752
 753                 if(!write_aiff_form_comm_chunk(f, samples, decoder_session->bps, decoder_session->channels, decoder_session->sample_rate))
 754                         return false;
 755
 756                 decoder_session->fm_offset2 = ftello(f);
 757
 758                 if(fm) {
 759                         /* seek forward to {allocate} or {skip over already-written chunks} after "COMM" but before "SSND" */
 760                         for(i = fm->format_block+1; i < fm->audio_block; i++) {
 761                                 if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) {
 762                                         flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata after \"COMM\"\n", decoder_session->inbasefilename);
 763                                         return false;
 764                                 }
 765                         }
 766                 }
 767
 768                 if(flac__utils_fwrite("SSND", 1, 4, f) != 4)
 769                         return false;
 770
 771                 if(!write_big_endian_uint32(f, (FLAC__uint32)data_size + 8 + ssnd_offset_size)) /* data size */
 772                         return false;
 773
 774                 if(!write_big_endian_uint32(f, ssnd_offset_size))
 775                         return false;
 776
 777                 if(!write_big_endian_uint32(f, 0/*block_size*/))
 778                         return false;
 779
 780                 if(ssnd_offset_size) {
 781                         /* seek forward to {allocate} or {skip over already-written} SSND offset */
 782                         if(fseeko(f, ssnd_offset_size, SEEK_CUR) < 0) {
 783                                 flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping \"SSND\" offset\n", decoder_session->inbasefilename);
 784                                 return false;
 785                         }
 786                 }
 787
 788                 decoder_session->fm_offset3 = ftello(f) + aligned_data_size;
 789         }
 790
 791         return true;
 792 }
 793
 794 FLAC__bool write_riff_wave_fmt_chunk_body(FILE *f, FLAC__bool is_waveformatextensible, unsigned bps, unsigned channels, unsigned sample_rate, FLAC__uint32 channel_mask)
 795 {
 796         if(!write_little_endian_uint16(f, (FLAC__uint16)(is_waveformatextensible? 65534 : 1))) /* compression code */
 797                 return false;
 798
 799         if(!write_little_endian_uint16(f, (FLAC__uint16)channels))
 800                 return false;
 801
 802         if(!write_little_endian_uint32(f, sample_rate))
 803                 return false;
 804
 805         if(!write_little_endian_uint32(f, sample_rate * channels * ((bps+7) / 8)))
 806                 return false;
 807
 808         if(!write_little_endian_uint16(f, (FLAC__uint16)(channels * ((bps+7) / 8)))) /* block align */
 809                 return false;
 810
 811         if(!write_little_endian_uint16(f, (FLAC__uint16)(((bps+7)/8)*8))) /* bits per sample */
 812                 return false;
 813
 814         if(is_waveformatextensible) {
 815                 if(!write_little_endian_uint16(f, (FLAC__uint16)22)) /* cbSize */
 816                         return false;
 817
 818                 if(!write_little_endian_uint16(f, (FLAC__uint16)bps)) /* validBitsPerSample */
 819                         return false;
 820
 821                 if(!write_little_endian_uint32(f, channel_mask))
 822                         return false;
 823
 824                 /* GUID = {0x00000001, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}} */
 825                 if(flac__utils_fwrite("\x01\x00\x00\x00\x00\x00\x10\x00\x80\x00\x00\xaa\x00\x38\x9b\x71", 1, 16, f) != 16)
 826                         return false;
 827         }
 828
 829         return true;
 830 }
 831
 832 FLAC__bool write_aiff_form_comm_chunk(FILE *f, FLAC__uint64 samples, unsigned bps, unsigned channels, unsigned sample_rate)
 833 {
 834         FLAC__ASSERT(samples <= 0xffffffff);
 835
 836         if(flac__utils_fwrite("COMM", 1, 4, f) != 4)
 837                 return false;
 838
 839         if(!write_big_endian_uint32(f, 18)) /* chunk size = 18 */
 840                 return false;
 841
 842         if(!write_big_endian_uint16(f, (FLAC__uint16)channels))
 843                 return false;
 844
 845         if(!write_big_endian_uint32(f, (FLAC__uint32)samples))
 846                 return false;
 847
 848         if(!write_big_endian_uint16(f, (FLAC__uint16)bps))
 849                 return false;
 850
 851         if(!write_sane_extended(f, sample_rate))
 852                 return false;
 853
 854         return true;
 855 }
 856
 857 FLAC__bool write_little_endian_uint16(FILE *f, FLAC__uint16 val)
 858 {
 859         FLAC__byte *b = (FLAC__byte*)(&val);
 860         if(is_big_endian_host_) {
 861                 FLAC__byte tmp;
 862                 tmp = b[1]; b[1] = b[0]; b[0] = tmp;
 863         }
 864         return flac__utils_fwrite(b, 1, 2, f) == 2;
 865 }
 866
 867 FLAC__bool write_little_endian_uint32(FILE *f, FLAC__uint32 val)
 868 {
 869         FLAC__byte *b = (FLAC__byte*)(&val);
 870         if(is_big_endian_host_) {
 871                 FLAC__byte tmp;
 872                 tmp = b[3]; b[3] = b[0]; b[0] = tmp;
 873                 tmp = b[2]; b[2] = b[1]; b[1] = tmp;
 874         }
 875         return flac__utils_fwrite(b, 1, 4, f) == 4;
 876 }
 877
 878 FLAC__bool write_little_endian_uint64(FILE *f, FLAC__uint64 val)
 879 {
 880         FLAC__byte *b = (FLAC__byte*)(&val);
 881         if(is_big_endian_host_) {
 882                 FLAC__byte tmp;
 883                 tmp = b[7]; b[7] = b[0]; b[0] = tmp;
 884                 tmp = b[6]; b[6] = b[1]; b[1] = tmp;
 885                 tmp = b[5]; b[5] = b[2]; b[2] = tmp;
 886                 tmp = b[4]; b[4] = b[3]; b[3] = tmp;
 887         }
 888         return flac__utils_fwrite(b, 1, 8, f) == 8;
 889 }
 890
 891 FLAC__bool write_big_endian_uint16(FILE *f, FLAC__uint16 val)
 892 {
 893         FLAC__byte *b = (FLAC__byte*)(&val);
 894         if(!is_big_endian_host_) {
 895                 FLAC__byte tmp;
 896                 tmp = b[1]; b[1] = b[0]; b[0] = tmp;
 897         }
 898         return flac__utils_fwrite(b, 1, 2, f) == 2;
 899 }
 900
 901 FLAC__bool write_big_endian_uint32(FILE *f, FLAC__uint32 val)
 902 {
 903         FLAC__byte *b = (FLAC__byte*)(&val);
 904         if(!is_big_endian_host_) {
 905                 FLAC__byte tmp;
 906                 tmp = b[3]; b[3] = b[0]; b[0] = tmp;
 907                 tmp = b[2]; b[2] = b[1]; b[1] = tmp;
 908         }
 909         return flac__utils_fwrite(b, 1, 4, f) == 4;
 910 }
 911
 912 FLAC__bool write_sane_extended(FILE *f, unsigned val)
 913         /* Write to 'f' a SANE extended representation of 'val'.  Return false if
 914         * the write succeeds; return true otherwise.
 915         *
 916         * SANE extended is an 80-bit IEEE-754 representation with sign bit, 15 bits
 917         * of exponent, and 64 bits of significand (mantissa).  Unlike most IEEE-754
 918         * representations, it does not imply a 1 above the MSB of the significand.
 919         *
 920         * Preconditions:
 921         *  val!=0U
 922         */
 923 {
 924         unsigned int shift, exponent;
 925
 926         FLAC__ASSERT(val!=0U); /* handling 0 would require a special case */
 927
 928         for(shift= 0U; (val>>(31-shift))==0U; ++shift)
 929                 ;
 930         val<<= shift;
 931         exponent= 63U-(shift+32U); /* add 32 for unused second word */
 932
 933         if(!write_big_endian_uint16(f, (FLAC__uint16)(exponent+0x3FFF)))
 934                 return false;
 935         if(!write_big_endian_uint32(f, val))
 936                 return false;
 937         if(!write_big_endian_uint32(f, 0)) /* unused second word */
 938                 return false;
 939
 940         return true;
 941 }
 942
 943 FLAC__bool fixup_iff_headers(DecoderSession *d)
 944 {
 945         const char *fmt_desc =
 946                 d->format==FORMAT_WAVE? "WAVE" :
 947                 d->format==FORMAT_WAVE64? "Wave64" :
 948                 d->format==FORMAT_RF64? "RF64" :
 949                 "AIFF";
 950         FILE *f = fopen(d->outfilename, "r+b"); /* stream is positioned at beginning of file */
 951
 952         if(0 == f) {
 953                 flac__utils_printf(stderr, 1, "ERROR, couldn't open file %s while fixing up %s chunk size: %s\n", d->outfilename, fmt_desc, strerror(errno));
 954                 return false;
 955         }
 956
 957         if(!write_iff_headers(f, d, d->samples_processed)) {
 958                 fclose(f);
 959                 return false;
 960         }
 961
 962         fclose(f);
 963         return true;
 964 }
 965
 966 FLAC__StreamDecoderWriteStatus write_callback(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
 967 {
 968         DecoderSession *decoder_session = (DecoderSession*)client_data;
 969         FILE *fout = decoder_session->fout;
 970         const unsigned bps = frame->header.bits_per_sample, channels = frame->header.channels;
 971         const unsigned shift = (decoder_session->format != FORMAT_RAW && (bps%8))? 8-(bps%8): 0;
 972         FLAC__bool is_big_endian = (
 973                 decoder_session->format == FORMAT_AIFF || decoder_session->format == FORMAT_AIFF_C ? true : (
 974                 decoder_session->format == FORMAT_WAVE || decoder_session->format == FORMAT_WAVE64 || decoder_session->format == FORMAT_RF64 ? false :
 975                 decoder_session->is_big_endian
 976         ));
 977         FLAC__bool is_unsigned_samples = (
 978                 decoder_session->format == FORMAT_AIFF || decoder_session->format == FORMAT_AIFF_C ? false : (
 979                 decoder_session->format == FORMAT_WAVE || decoder_session->format == FORMAT_WAVE64 || decoder_session->format == FORMAT_RF64 ? bps<=8 :
 980                 decoder_session->is_unsigned_samples
 981         ));
 982         unsigned wide_samples = frame->header.blocksize, wide_sample, sample, channel, byte;
 983         unsigned frame_bytes = 0;
 984         static FLAC__int8 s8buffer[FLAC__MAX_BLOCK_SIZE * FLAC__MAX_CHANNELS * sizeof(FLAC__int32)]; /* WATCHOUT: can be up to 2 megs */
 985         FLAC__uint8  *u8buffer  = (FLAC__uint8  *)s8buffer;
 986         FLAC__int16  *s16buffer = (FLAC__int16  *)s8buffer;
 987         FLAC__uint16 *u16buffer = (FLAC__uint16 *)s8buffer;
 988         FLAC__int32  *s32buffer = (FLAC__int32  *)s8buffer;
 989         FLAC__uint32 *u32buffer = (FLAC__uint32 *)s8buffer;
 990         size_t bytes_to_write = 0;
 991
 992         (void)decoder;
 993
 994         if(decoder_session->abort_flag)
 995                 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
 996
 997         /* sanity-check the bits-per-sample */
 998         if(decoder_session->bps) {
 999                 if(bps != decoder_session->bps) {
1000                         if(decoder_session->got_stream_info)
1001                                 flac__utils_printf(stderr, 1, "%s: ERROR, bits-per-sample is %u in frame but %u in STREAMINFO\n", decoder_session->inbasefilename, bps, decoder_session->bps);
1002                         else
1003                                 flac__utils_printf(stderr, 1, "%s: ERROR, bits-per-sample is %u in this frame but %u in previous frames\n", decoder_session->inbasefilename, bps, decoder_session->bps);
1004                         if(!decoder_session->continue_through_decode_errors)
1005                                 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1006                 }
1007         }
1008         else {
1009                 /* must not have gotten STREAMINFO, save the bps from the frame header */
1010                 FLAC__ASSERT(!decoder_session->got_stream_info);
1011                 decoder_session->bps = bps;
1012         }
1013
1014         /* sanity-check the #channels */
1015         if(decoder_session->channels) {
1016                 if(channels != decoder_session->channels) {
1017                         if(decoder_session->got_stream_info)
1018                                 flac__utils_printf(stderr, 1, "%s: ERROR, channels is %u in frame but %u in STREAMINFO\n", decoder_session->inbasefilename, channels, decoder_session->channels);
1019                         else
1020                                 flac__utils_printf(stderr, 1, "%s: ERROR, channels is %u in this frame but %u in previous frames\n", decoder_session->inbasefilename, channels, decoder_session->channels);
1021                         if(!decoder_session->continue_through_decode_errors)
1022                                 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1023                 }
1024         }
1025         else {
1026                 /* must not have gotten STREAMINFO, save the #channels from the frame header */
1027                 FLAC__ASSERT(!decoder_session->got_stream_info);
1028                 decoder_session->channels = channels;
1029         }
1030
1031         /* sanity-check the sample rate */
1032         if(decoder_session->sample_rate) {
1033                 if(frame->header.sample_rate != decoder_session->sample_rate) {
1034                         if(decoder_session->got_stream_info)
1035                                 flac__utils_printf(stderr, 1, "%s: ERROR, sample rate is %u in frame but %u in STREAMINFO\n", decoder_session->inbasefilename, frame->header.sample_rate, decoder_session->sample_rate);
1036                         else
1037                                 flac__utils_printf(stderr, 1, "%s: ERROR, sample rate is %u in this frame but %u in previous frames\n", decoder_session->inbasefilename, frame->header.sample_rate, decoder_session->sample_rate);
1038                         if(!decoder_session->continue_through_decode_errors)
1039                                 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1040                 }
1041         }
1042         else {
1043                 /* must not have gotten STREAMINFO, save the sample rate from the frame header */
1044                 FLAC__ASSERT(!decoder_session->got_stream_info);
1045                 decoder_session->sample_rate = frame->header.sample_rate;
1046         }
1047
1048         /*
1049          * limit the number of samples to accept based on --until
1050          */
1051         FLAC__ASSERT(!decoder_session->skip_specification->is_relative);
1052         /* if we never got the total_samples from the metadata, the skip and until specs would never have been canonicalized, so protect against that: */
1053         if(decoder_session->skip_specification->is_relative) {
1054                 if(decoder_session->skip_specification->value.samples == 0) /* special case for when no --skip was given */
1055                         decoder_session->skip_specification->is_relative = false; /* convert to our meaning of beginning-of-stream */
1056                 else {
1057                         flac__utils_printf(stderr, 1, "%s: ERROR, cannot use --skip because the total sample count was not found in the metadata\n", decoder_session->inbasefilename);
1058                         return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1059                 }
1060         }
1061         if(decoder_session->until_specification->is_relative) {
1062                 if(decoder_session->until_specification->value.samples == 0) /* special case for when no --until was given */
1063                         decoder_session->until_specification->is_relative = false; /* convert to our meaning of end-of-stream */
1064                 else {
1065                         flac__utils_printf(stderr, 1, "%s: ERROR, cannot use --until because the total sample count was not found in the metadata\n", decoder_session->inbasefilename);
1066                         return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1067                 }
1068         }
1069         FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0);
1070         FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0);
1071         if(decoder_session->until_specification->value.samples > 0) {
1072                 const FLAC__uint64 skip = (FLAC__uint64)decoder_session->skip_specification->value.samples;
1073                 const FLAC__uint64 until = (FLAC__uint64)decoder_session->until_specification->value.samples;
1074                 const FLAC__uint64 input_samples_passed = skip + decoder_session->samples_processed;
1075                 FLAC__ASSERT(until >= input_samples_passed);
1076                 if(input_samples_passed + wide_samples > until)
1077                         wide_samples = (unsigned)(until - input_samples_passed);
1078                 if (wide_samples == 0) {
1079                         decoder_session->abort_flag = true;
1080                         decoder_session->aborting_due_to_until = true;
1081                         return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1082                 }
1083         }
1084
1085         if(decoder_session->analysis_mode) {
1086                 FLAC__uint64 dpos;
1087                 FLAC__stream_decoder_get_decode_position(decoder_session->decoder, &dpos);
1088                 frame_bytes = (unsigned)(dpos-decoder_session->decode_position);
1089                 decoder_session->decode_position = dpos;
1090         }
1091
1092         if(wide_samples > 0) {
1093                 decoder_session->samples_processed += wide_samples;
1094                 decoder_session->frame_counter++;
1095
1096                 if(!(decoder_session->frame_counter & 0x3f))
1097                         print_stats(decoder_session);
1098
1099                 if(decoder_session->analysis_mode) {
1100                         flac__analyze_frame(frame, decoder_session->frame_counter-1, decoder_session->decode_position-frame_bytes, frame_bytes, decoder_session->aopts, fout);
1101                 }
1102                 else if(!decoder_session->test_only) {
1103                         if(shift && !decoder_session->replaygain.apply) {
1104                                 for(wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1105                                         for(channel = 0; channel < channels; channel++)
1106                                                 ((FLAC__int32**)buffer)[channel][wide_sample] <<= shift;/*@@@@@@un-const'ing the buffer is hacky but safe*/
1107                         }
1108                         if(decoder_session->replaygain.apply) {
1109                                 bytes_to_write = FLAC__replaygain_synthesis__apply_gain(
1110                                         u8buffer,
1111                                         !is_big_endian,
1112                                         is_unsigned_samples,
1113                                         buffer,
1114                                         wide_samples,
1115                                         channels,
1116                                         bps, /* source_bps */
1117                                         bps+shift, /* target_bps */
1118                                         decoder_session->replaygain.scale,
1119                                         decoder_session->replaygain.spec.limiter == RGSS_LIMIT__HARD, /* hard_limit */
1120                                         decoder_session->replaygain.spec.noise_shaping != NOISE_SHAPING_NONE, /* do_dithering */
1121                                         &decoder_session->replaygain.dither_context
1122                                 );
1123                         }
1124                         /* first some special code for common cases */
1125                         else if(is_big_endian == is_big_endian_host_ && !is_unsigned_samples && channels == 2 && bps+shift == 16) {
1126                                 FLAC__int16 *buf1_ = s16buffer + 1;
1127                                 if(is_big_endian)
1128                                         memcpy(s16buffer, ((FLAC__byte*)(buffer[0]))+2, sizeof(FLAC__int32) * wide_samples - 2);
1129                                 else
1130                                         memcpy(s16buffer, buffer[0], sizeof(FLAC__int32) * wide_samples);
1131                                 for(sample = 0; sample < wide_samples; sample++, buf1_+=2)
1132                                         *buf1_ = (FLAC__int16)buffer[1][sample];
1133                                 bytes_to_write = 4 * sample;
1134                         }
1135                         else if(is_big_endian == is_big_endian_host_ && !is_unsigned_samples && channels == 1 && bps+shift == 16) {
1136                                 FLAC__int16 *buf1_ = s16buffer;
1137                                 for(sample = 0; sample < wide_samples; sample++)
1138                                         *buf1_++ = (FLAC__int16)buffer[0][sample];
1139                                 bytes_to_write = 2 * sample;
1140                         }
1141                         /* generic code for the rest */
1142                         else if(bps+shift == 16) {
1143                                 if(is_unsigned_samples) {
1144                                         if(channels == 2) {
1145                                                 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) {
1146                                                         u16buffer[sample++] = (FLAC__uint16)(buffer[0][wide_sample] + 0x8000);
1147                                                         u16buffer[sample++] = (FLAC__uint16)(buffer[1][wide_sample] + 0x8000);
1148                                                 }
1149                                         }
1150                                         else if(channels == 1) {
1151                                                 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1152                                                         u16buffer[sample++] = (FLAC__uint16)(buffer[0][wide_sample] + 0x8000);
1153                                         }
1154                                         else { /* works for any 'channels' but above flavors are faster for 1 and 2 */
1155                                                 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1156                                                         for(channel = 0; channel < channels; channel++, sample++)
1157                                                                 u16buffer[sample] = (FLAC__uint16)(buffer[channel][wide_sample] + 0x8000);
1158                                         }
1159                                 }
1160                                 else {
1161                                         if(channels == 2) {
1162                                                 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) {
1163                                                         s16buffer[sample++] = (FLAC__int16)(buffer[0][wide_sample]);
1164                                                         s16buffer[sample++] = (FLAC__int16)(buffer[1][wide_sample]);
1165                                                 }
1166                                         }
1167                                         else if(channels == 1) {
1168                                                 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1169                                                         s16buffer[sample++] = (FLAC__int16)(buffer[0][wide_sample]);
1170                                         }
1171                                         else { /* works for any 'channels' but above flavors are faster for 1 and 2 */
1172                                                 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1173                                                         for(channel = 0; channel < channels; channel++, sample++)
1174                                                                 s16buffer[sample] = (FLAC__int16)(buffer[channel][wide_sample]);
1175                                         }
1176                                 }
1177                                 if(is_big_endian != is_big_endian_host_) {
1178                                         unsigned char tmp;
1179                                         const unsigned bytes = sample * 2;
1180                                         for(byte = 0; byte < bytes; byte += 2) {
1181                                                 tmp = u8buffer[byte];
1182                                                 u8buffer[byte] = u8buffer[byte+1];
1183                                                 u8buffer[byte+1] = tmp;
1184                                         }
1185                                 }
1186                                 bytes_to_write = 2 * sample;
1187                         }
1188                         else if(bps+shift == 24) {
1189                                 if(is_unsigned_samples) {
1190                                         for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1191                                                 for(channel = 0; channel < channels; channel++, sample++)
1192                                                         u32buffer[sample] = buffer[channel][wide_sample] + 0x800000;
1193                                 }
1194                                 else {
1195                                         for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1196                                                 for(channel = 0; channel < channels; channel++, sample++)
1197                                                         s32buffer[sample] = buffer[channel][wide_sample];
1198                                 }
1199                                 if(is_big_endian != is_big_endian_host_) {
1200                                         unsigned char tmp;
1201                                         const unsigned bytes = sample * 4;
1202                                         for(byte = 0; byte < bytes; byte += 4) {
1203                                                 tmp = u8buffer[byte];
1204                                                 u8buffer[byte] = u8buffer[byte+3];
1205                                                 u8buffer[byte+3] = tmp;
1206                                                 tmp = u8buffer[byte+1];
1207                                                 u8buffer[byte+1] = u8buffer[byte+2];
1208                                                 u8buffer[byte+2] = tmp;
1209                                         }
1210                                 }
1211                                 if(is_big_endian) {
1212                                         unsigned lbyte;
1213                                         const unsigned bytes = sample * 4;
1214                                         for(lbyte = byte = 0; byte < bytes; ) {
1215                                                 byte++;
1216                                                 u8buffer[lbyte++] = u8buffer[byte++];
1217                                                 u8buffer[lbyte++] = u8buffer[byte++];
1218                                                 u8buffer[lbyte++] = u8buffer[byte++];
1219                                         }
1220                                 }
1221                                 else {
1222                                         unsigned lbyte;
1223                                         const unsigned bytes = sample * 4;
1224                                         for(lbyte = byte = 0; byte < bytes; ) {
1225                                                 u8buffer[lbyte++] = u8buffer[byte++];
1226                                                 u8buffer[lbyte++] = u8buffer[byte++];
1227                                                 u8buffer[lbyte++] = u8buffer[byte++];
1228                                                 byte++;
1229                                         }
1230                                 }
1231                                 bytes_to_write = 3 * sample;
1232                         }
1233                         else if(bps+shift == 8) {
1234                                 if(is_unsigned_samples) {
1235                                         for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1236                                                 for(channel = 0; channel < channels; channel++, sample++)
1237                                                         u8buffer[sample] = (FLAC__uint8)(buffer[channel][wide_sample] + 0x80);
1238                                 }
1239                                 else {
1240                                         for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1241                                                 for(channel = 0; channel < channels; channel++, sample++)
1242                                                         s8buffer[sample] = (FLAC__int8)(buffer[channel][wide_sample]);
1243                                 }
1244                                 bytes_to_write = sample;
1245                         }
1246                         else {
1247                                 FLAC__ASSERT(0);
1248                                 /* double protection */
1249                                 decoder_session->abort_flag = true;
1250                                 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1251                         }
1252                 }
1253         }
1254         if(bytes_to_write > 0) {
1255                 if(flac__utils_fwrite(u8buffer, 1, bytes_to_write, fout) != bytes_to_write) {
1256                         /* if a pipe closed when writing to stdout, we let it go without an error message */
1257                         if(errno == EPIPE && decoder_session->fout == stdout)
1258                                 decoder_session->aborting_due_to_until = true;
1259                         decoder_session->abort_flag = true;
1260                         return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1261                 }
1262         }
1263         return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
1264 }
1265
1266 void metadata_callback(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
1267 {
1268         DecoderSession *decoder_session = (DecoderSession*)client_data;
1269
1270         if(decoder_session->analysis_mode)
1271                 FLAC__stream_decoder_get_decode_position(decoder, &decoder_session->decode_position);
1272
1273         if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO) {
1274                 FLAC__uint64 skip, until;
1275                 decoder_session->got_stream_info = true;
1276                 decoder_session->has_md5sum = memcmp(metadata->data.stream_info.md5sum, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1277                 decoder_session->bps = metadata->data.stream_info.bits_per_sample;
1278                 decoder_session->channels = metadata->data.stream_info.channels;
1279                 decoder_session->sample_rate = metadata->data.stream_info.sample_rate;
1280
1281                 flac__utils_canonicalize_skip_until_specification(decoder_session->skip_specification, decoder_session->sample_rate);
1282                 FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0);
1283                 skip = (FLAC__uint64)decoder_session->skip_specification->value.samples;
1284
1285                 /* remember, metadata->data.stream_info.total_samples can be 0, meaning 'unknown' */
1286                 if(metadata->data.stream_info.total_samples > 0 && skip >= metadata->data.stream_info.total_samples) {
1287                         flac__utils_printf(stderr, 1, "%s: ERROR trying to --skip more samples than in stream\n", decoder_session->inbasefilename);
1288                         decoder_session->abort_flag = true;
1289                         return;
1290                 }
1291                 else if(metadata->data.stream_info.total_samples == 0 && skip > 0) {
1292                         flac__utils_printf(stderr, 1, "%s: ERROR, can't --skip when FLAC metadata has total sample count of 0\n", decoder_session->inbasefilename);
1293                         decoder_session->abort_flag = true;
1294                         return;
1295                 }
1296                 FLAC__ASSERT(skip == 0 || 0 == decoder_session->cue_specification);
1297                 decoder_session->total_samples = metadata->data.stream_info.total_samples - skip;
1298
1299                 /* note that we use metadata->data.stream_info.total_samples instead of decoder_session->total_samples */
1300                 if(!canonicalize_until_specification(decoder_session->until_specification, decoder_session->inbasefilename, decoder_session->sample_rate, skip, metadata->data.stream_info.total_samples)) {
1301                         decoder_session->abort_flag = true;
1302                         return;
1303                 }
1304                 FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0);
1305                 until = (FLAC__uint64)decoder_session->until_specification->value.samples;
1306
1307                 if(until > 0) {
1308                         FLAC__ASSERT(decoder_session->total_samples != 0);
1309                         FLAC__ASSERT(0 == decoder_session->cue_specification);
1310                         decoder_session->total_samples -= (metadata->data.stream_info.total_samples - until);
1311                 }
1312
1313                 if(decoder_session->bps < 4 || decoder_session->bps > 24) {
1314                         flac__utils_printf(stderr, 1, "%s: ERROR: bits per sample is %u, must be 4-24\n", decoder_session->inbasefilename, decoder_session->bps);
1315                         decoder_session->abort_flag = true;
1316                         return;
1317                 }
1318         }
1319         else if(metadata->type == FLAC__METADATA_TYPE_CUESHEET) {
1320                 /* remember, at this point, decoder_session->total_samples can be 0, meaning 'unknown' */
1321                 if(decoder_session->total_samples == 0) {
1322                         flac__utils_printf(stderr, 1, "%s: ERROR can't use --cue when FLAC metadata has total sample count of 0\n", decoder_session->inbasefilename);
1323                         decoder_session->abort_flag = true;
1324                         return;
1325                 }
1326
1327                 flac__utils_canonicalize_cue_specification(decoder_session->cue_specification, &metadata->data.cue_sheet, decoder_session->total_samples, decoder_session->skip_specification, decoder_session->until_specification);
1328
1329                 FLAC__ASSERT(!decoder_session->skip_specification->is_relative);
1330                 FLAC__ASSERT(decoder_session->skip_specification->value_is_samples);
1331
1332                 FLAC__ASSERT(!decoder_session->until_specification->is_relative);
1333                 FLAC__ASSERT(decoder_session->until_specification->value_is_samples);
1334
1335                 FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0);
1336                 FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0);
1337                 FLAC__ASSERT((FLAC__uint64)decoder_session->until_specification->value.samples <= decoder_session->total_samples);
1338                 FLAC__ASSERT(decoder_session->skip_specification->value.samples <= decoder_session->until_specification->value.samples);
1339
1340                 decoder_session->total_samples = decoder_session->until_specification->value.samples - decoder_session->skip_specification->value.samples;
1341         }
1342         else if(metadata->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
1343                 if (decoder_session->replaygain.spec.apply) {
1344                         double reference, gain, peak;
1345                         if (!(decoder_session->replaygain.apply = grabbag__replaygain_load_from_vorbiscomment(metadata, decoder_session->replaygain.spec.use_album_gain, /*strict=*/false, &reference, &gain, &peak))) {
1346                                 flac__utils_printf(stderr, 1, "%s: WARNING: can't get %s (or even %s) ReplayGain tags\n", decoder_session->inbasefilename, decoder_session->replaygain.spec.use_album_gain? "album":"track", decoder_session->replaygain.spec.use_album_gain? "track":"album");
1347                                 if(decoder_session->treat_warnings_as_errors) {
1348                                         decoder_session->abort_flag = true;
1349                                         return;
1350                                 }
1351                         }
1352                         else {
1353                                 const char *ls[] = { "no", "peak", "hard" };
1354                                 const char *ns[] = { "no", "low", "medium", "high" };
1355                                 decoder_session->replaygain.scale = grabbag__replaygain_compute_scale_factor(peak, gain, decoder_session->replaygain.spec.preamp, decoder_session->replaygain.spec.limiter == RGSS_LIMIT__PEAK);
1356                                 FLAC__ASSERT(decoder_session->bps > 0 && decoder_session->bps <= 32);
1357                                 FLAC__replaygain_synthesis__init_dither_context(&decoder_session->replaygain.dither_context, decoder_session->bps, decoder_session->replaygain.spec.noise_shaping);
1358                                 flac__utils_printf(stderr, 1, "%s: INFO: applying %s ReplayGain (gain=%0.2fdB+preamp=%0.1fdB, %s noise shaping, %s limiting) to output\n", decoder_session->inbasefilename, decoder_session->replaygain.spec.use_album_gain? "album":"track", gain, decoder_session->replaygain.spec.preamp, ns[decoder_session->replaygain.spec.noise_shaping], ls[decoder_session->replaygain.spec.limiter]);
1359                                 flac__utils_printf(stderr, 1, "%s: WARNING: applying ReplayGain is not lossless\n", decoder_session->inbasefilename);
1360                                 /* don't check if(decoder_session->treat_warnings_as_errors) because the user explicitly asked for it */
1361                         }
1362                 }
1363                 (void)flac__utils_get_channel_mask_tag(metadata, &decoder_session->channel_mask);
1364         }
1365 }
1366
1367 void error_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
1368 {
1369         DecoderSession *decoder_session = (DecoderSession*)client_data;
1370         (void)decoder;
1371         flac__utils_printf(stderr, 1, "%s: *** Got error code %d:%s\n", decoder_session->inbasefilename, status, FLAC__StreamDecoderErrorStatusString[status]);
1372         if(!decoder_session->continue_through_decode_errors) {
1373                 decoder_session->abort_flag = true;
1374                 if(status == FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM)
1375                         decoder_session->aborting_due_to_unparseable = true;
1376         }
1377 }
1378
1379 void print_error_with_init_status(const DecoderSession *d, const char *message, FLAC__StreamDecoderInitStatus init_status)
1380 {
1381         const int ilen = strlen(d->inbasefilename) + 1;
1382
1383         flac__utils_printf(stderr, 1, "\n%s: %s\n", d->inbasefilename, message);
1384
1385         flac__utils_printf(stderr, 1, "%*s init status = %s\n", ilen, "", FLAC__StreamDecoderInitStatusString[init_status]);
1386
1387         /* print out some more info for some errors: */
1388         if (init_status == FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE) {
1389                 flac__utils_printf(stderr, 1,
1390                         "\n"
1391                         "An error occurred opening the input file; it is likely that it does not exist\n"
1392                         "or is not readable.\n"
1393                 );
1394         }
1395 }
1396
1397 void print_error_with_state(const DecoderSession *d, const char *message)
1398 {
1399         const int ilen = strlen(d->inbasefilename) + 1;
1400
1401         flac__utils_printf(stderr, 1, "\n%s: %s\n", d->inbasefilename, message);
1402         flac__utils_printf(stderr, 1, "%*s state = %s\n", ilen, "", FLAC__stream_decoder_get_resolved_state_string(d->decoder));
1403
1404         /* print out some more info for some errors: */
1405         if (d->aborting_due_to_unparseable) {
1406                 flac__utils_printf(stderr, 1,
1407                         "\n"
1408                         "The FLAC stream may have been created by a more advanced encoder.  Try\n"
1409                         "  metaflac --show-vendor-tag %s\n"
1410                         "If the version number is greater than %s, this decoder is probably\n"
1411                         "not able to decode the file.  If the version number is not, the file\n"
1412                         "may be corrupted, or you may have found a bug.  In this case please\n"
1413                         "submit a bug report to\n"
1414                         "    http://sourceforge.net/bugs/?func=addbug&group_id=13478\n"
1415                         "Make sure to use the \"Monitor\" feature to monitor the bug status.\n",
1416                         d->inbasefilename, FLAC__VERSION_STRING
1417                 );
1418         }
1419 }
1420
1421 void print_stats(const DecoderSession *decoder_session)
1422 {
1423         if(flac__utils_verbosity_ >= 2) {
1424 #if defined _MSC_VER || defined __MINGW32__
1425                 /* with MSVC you have to spoon feed it the casting */
1426                 const double progress = (double)(FLAC__int64)decoder_session->samples_processed / (double)(FLAC__int64)decoder_session->total_samples * 100.0;
1427 #else
1428                 const double progress = (double)decoder_session->samples_processed / (double)decoder_session->total_samples * 100.0;
1429 #endif
1430                 if(decoder_session->total_samples > 0) {
1431                         fprintf(stderr, "\r%s: %s%u%% complete",
1432                                 decoder_session->inbasefilename,
1433                                 decoder_session->test_only? "testing, " : decoder_session->analysis_mode? "analyzing, " : "",
1434                                 (unsigned)floor(progress + 0.5)
1435                         );
1436                 }
1437                 else {
1438                         fprintf(stderr, "\r%s: %s %u samples",
1439                                 decoder_session->inbasefilename,
1440                                 decoder_session->test_only? "tested" : decoder_session->analysis_mode? "analyzed" : "wrote",
1441                                 (unsigned)decoder_session->samples_processed
1442                         );
1443                 }
1444         }
1445 }