src/flac/decode.c

   1 /* flac - Command-line FLAC encoder/decoder
   2  * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007,2008,2009  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 along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #if HAVE_CONFIG_H
  20 #  include <config.h>
  21 #endif
  22
  23 #include <errno.h>
  24 #include <math.h> /* for floor() */
  25 #include <stdio.h> /* for FILE etc. */
  26 #include <string.h> /* for strcmp(), strerror() */
  27 #include "FLAC/all.h"
  28 #include "share/grabbag.h"
  29 #include "share/replaygain_synthesis.h"
  30 #include "share/compat.h"
  31 #include "decode.h"
  32
  33 typedef struct {
  34 #if FLAC__HAS_OGG
  35         FLAC__bool is_ogg;
  36         FLAC__bool use_first_serial_number;
  37         long serial_number;
  38 #endif
  39
  40         FileFormat format;
  41         FLAC__bool treat_warnings_as_errors;
  42         FLAC__bool continue_through_decode_errors;
  43         FLAC__bool channel_map_none;
  44
  45         struct {
  46                 replaygain_synthesis_spec_t spec;
  47                 FLAC__bool apply; /* 'spec.apply' is just a request; this 'apply' means we actually parsed the RG tags and are ready to go */
  48                 double scale;
  49                 DitherContext dither_context;
  50         } replaygain;
  51
  52         FLAC__bool test_only;
  53         FLAC__bool analysis_mode;
  54         analysis_options aopts;
  55         utils__SkipUntilSpecification *skip_specification;
  56         utils__SkipUntilSpecification *until_specification; /* a canonicalized value of 0 mean end-of-stream (i.e. --until=-0) */
  57         utils__CueSpecification *cue_specification;
  58
  59         const char *inbasefilename;
  60         const char *infilename;
  61         const char *outfilename;
  62
  63         FLAC__uint64 samples_processed;
  64         unsigned frame_counter;
  65         FLAC__bool abort_flag;
  66         FLAC__bool aborting_due_to_until; /* true if we intentionally abort decoding prematurely because we hit the --until point */
  67         FLAC__bool aborting_due_to_unparseable; /* true if we abort decoding because we hit an unparseable frame */
  68         FLAC__bool error_callback_suppress_messages; /* turn on to prevent repeating messages from the error callback */
  69
  70         FLAC__bool iff_headers_need_fixup;
  71
  72         FLAC__bool is_big_endian;
  73         FLAC__bool is_unsigned_samples;
  74         FLAC__bool got_stream_info;
  75         FLAC__bool has_md5sum;
  76         FLAC__uint64 total_samples;
  77         unsigned bps;
  78         unsigned channels;
  79         unsigned sample_rate;
  80         FLAC__uint32 channel_mask;
  81
  82         /* these are used only in analyze mode */
  83         FLAC__uint64 decode_position;
  84
  85         FLAC__StreamDecoder *decoder;
  86
  87         FILE *fout;
  88
  89         foreign_metadata_t *foreign_metadata; /* NULL unless --keep-foreign-metadata requested */
  90         FLAC__off_t fm_offset1, fm_offset2, fm_offset3;
  91 } DecoderSession;
  92
  93
  94 static FLAC__bool is_big_endian_host_;
  95
  96
  97 /*
  98  * local routines
  99  */
 100 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);
 101 static void DecoderSession_destroy(DecoderSession *d, FLAC__bool error_occurred);
 102 static FLAC__bool DecoderSession_init_decoder(DecoderSession *d, const char *infilename);
 103 static FLAC__bool DecoderSession_process(DecoderSession *d);
 104 static int DecoderSession_finish_ok(DecoderSession *d);
 105 static int DecoderSession_finish_error(DecoderSession *d);
 106 static FLAC__bool canonicalize_until_specification(utils__SkipUntilSpecification *spec, const char *inbasefilename, unsigned sample_rate, FLAC__uint64 skip, FLAC__uint64 total_samples_in_input);
 107 static FLAC__bool write_iff_headers(FILE *f, DecoderSession *decoder_session, FLAC__uint64 samples);
 108 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);
 109 static FLAC__bool write_aiff_form_comm_chunk(FILE *f, FLAC__uint64 samples, unsigned bps, unsigned channels, unsigned sample_rate);
 110 static FLAC__bool write_little_endian_uint16(FILE *f, FLAC__uint16 val);
 111 static FLAC__bool write_little_endian_uint32(FILE *f, FLAC__uint32 val);
 112 static FLAC__bool write_little_endian_uint64(FILE *f, FLAC__uint64 val);
 113 static FLAC__bool write_big_endian_uint16(FILE *f, FLAC__uint16 val);
 114 static FLAC__bool write_big_endian_uint32(FILE *f, FLAC__uint32 val);
 115 static FLAC__bool write_sane_extended(FILE *f, unsigned val);
 116 static FLAC__bool fixup_iff_headers(DecoderSession *d);
 117 static FLAC__StreamDecoderWriteStatus write_callback(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
 118 static void metadata_callback(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
 119 static void error_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
 120 static void print_error_with_init_status(const DecoderSession *d, const char *message, FLAC__StreamDecoderInitStatus init_status);
 121 static void print_error_with_state(const DecoderSession *d, const char *message);
 122 static void print_stats(const DecoderSession *decoder_session);
 123
 124
 125 /*
 126  * public routines
 127  */
 128 int flac__decode_file(const char *infilename, const char *outfilename, FLAC__bool analysis_mode, analysis_options aopts, decode_options_t options)
 129 {
 130         DecoderSession decoder_session;
 131
 132         FLAC__ASSERT(
 133                 options.format == FORMAT_WAVE ||
 134                 options.format == FORMAT_WAVE64 ||
 135                 options.format == FORMAT_RF64 ||
 136                 options.format == FORMAT_AIFF ||
 137                 options.format == FORMAT_AIFF_C ||
 138                 options.format == FORMAT_RAW
 139         );
 140
 141         if(options.format == FORMAT_RAW) {
 142                 decoder_session.is_big_endian = options.format_options.raw.is_big_endian;
 143                 decoder_session.is_unsigned_samples = options.format_options.raw.is_unsigned_samples;
 144         }
 145
 146         if(!
 147                 DecoderSession_construct(
 148                         &decoder_session,
 149 #if FLAC__HAS_OGG
 150                         options.is_ogg,
 151                         options.use_first_serial_number,
 152                         options.serial_number,
 153 #else
 154                         /*is_ogg=*/false,
 155                         /*use_first_serial_number=*/false,
 156                         /*serial_number=*/0,
 157 #endif
 158                         options.format,
 159                         options.treat_warnings_as_errors,
 160                         options.continue_through_decode_errors,
 161                         options.channel_map_none,
 162                         options.replaygain_synthesis_spec,
 163                         analysis_mode,
 164                         aopts,
 165                         &options.skip_specification,
 166                         &options.until_specification,
 167                         options.has_cue_specification? &options.cue_specification : 0,
 168                         options.format == FORMAT_RAW? NULL : options.format_options.iff.foreign_metadata,
 169                         infilename,
 170                         outfilename
 171                 )
 172         )
 173                 return 1;
 174
 175         if(!DecoderSession_init_decoder(&decoder_session, infilename))
 176                 return DecoderSession_finish_error(&decoder_session);
 177
 178         if(!DecoderSession_process(&decoder_session))
 179                 return DecoderSession_finish_error(&decoder_session);
 180
 181         return DecoderSession_finish_ok(&decoder_session);
 182 }
 183
 184 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)
 185 {
 186 #if FLAC__HAS_OGG
 187         d->is_ogg = is_ogg;
 188         d->use_first_serial_number = use_first_serial_number;
 189         d->serial_number = serial_number;
 190 #else
 191         (void)is_ogg;
 192         (void)use_first_serial_number;
 193         (void)serial_number;
 194 #endif
 195
 196         d->format = format;
 197         d->treat_warnings_as_errors = treat_warnings_as_errors;
 198         d->continue_through_decode_errors = continue_through_decode_errors;
 199         d->channel_map_none = channel_map_none;
 200         d->replaygain.spec = replaygain_synthesis_spec;
 201         d->replaygain.apply = false;
 202         d->replaygain.scale = 0.0;
 203         /* d->replaygain.dither_context gets initialized later once we know the sample resolution */
 204         d->test_only = (0 == outfilename);
 205         d->analysis_mode = analysis_mode;
 206         d->aopts = aopts;
 207         d->skip_specification = skip_specification;
 208         d->until_specification = until_specification;
 209         d->cue_specification = cue_specification;
 210
 211         d->inbasefilename = grabbag__file_get_basename(infilename);
 212         d->infilename = infilename;
 213         d->outfilename = outfilename;
 214
 215         d->samples_processed = 0;
 216         d->frame_counter = 0;
 217         d->abort_flag = false;
 218         d->aborting_due_to_until = false;
 219         d->aborting_due_to_unparseable = false;
 220         d->error_callback_suppress_messages = false;
 221
 222         d->iff_headers_need_fixup = false;
 223
 224         d->total_samples = 0;
 225         d->got_stream_info = false;
 226         d->has_md5sum = false;
 227         d->bps = 0;
 228         d->channels = 0;
 229         d->sample_rate = 0;
 230         d->channel_mask = 0;
 231
 232         d->decode_position = 0;
 233
 234         d->decoder = 0;
 235
 236         d->fout = 0; /* initialized with an open file later if necessary */
 237
 238         d->foreign_metadata = foreign_metadata;
 239
 240         FLAC__ASSERT(!(d->test_only && d->analysis_mode));
 241
 242         if(!d->test_only) {
 243                 if(0 == strcmp(outfilename, "-")) {
 244                         d->fout = grabbag__file_get_binary_stdout();
 245                 }
 246                 else {
 247                         if(0 == (d->fout = fopen(outfilename, "wb"))) {
 248                                 flac__utils_printf(stderr, 1, "%s: ERROR: can't open output file %s: %s\n", d->inbasefilename, outfilename, strerror(errno));
 249                                 DecoderSession_destroy(d, /*error_occurred=*/true);
 250                                 return false;
 251                         }
 252                 }
 253         }
 254
 255         if(analysis_mode)
 256                 flac__analyze_init(aopts);
 257
 258         return true;
 259 }
 260
 261 void DecoderSession_destroy(DecoderSession *d, FLAC__bool error_occurred)
 262 {
 263         if(0 != d->fout && d->fout != stdout) {
 264                 fclose(d->fout);
 265                 if(error_occurred)
 266                         unlink(d->outfilename);
 267         }
 268 }
 269
 270 FLAC__bool DecoderSession_init_decoder(DecoderSession *decoder_session, const char *infilename)
 271 {
 272         FLAC__StreamDecoderInitStatus init_status;
 273         FLAC__uint32 test = 1;
 274
 275         is_big_endian_host_ = (*((FLAC__byte*)(&test)))? false : true;
 276
 277         if(!decoder_session->analysis_mode && !decoder_session->test_only && decoder_session->foreign_metadata) {
 278                 const char *error;
 279                 if(!flac__foreign_metadata_read_from_flac(decoder_session->foreign_metadata, infilename, &error)) {
 280                         flac__utils_printf(stderr, 1, "%s: ERROR reading foreign metadata: %s\n", decoder_session->inbasefilename, error);
 281                         return false;
 282                 }
 283         }
 284
 285         decoder_session->decoder = FLAC__stream_decoder_new();
 286
 287         if(0 == decoder_session->decoder) {
 288                 flac__utils_printf(stderr, 1, "%s: ERROR creating the decoder instance\n", decoder_session->inbasefilename);
 289                 return false;
 290         }
 291
 292         FLAC__stream_decoder_set_md5_checking(decoder_session->decoder, true);
 293         if (0 != decoder_session->cue_specification)
 294                 FLAC__stream_decoder_set_metadata_respond(decoder_session->decoder, FLAC__METADATA_TYPE_CUESHEET);
 295         if (decoder_session->replaygain.spec.apply)
 296                 FLAC__stream_decoder_set_metadata_respond(decoder_session->decoder, FLAC__METADATA_TYPE_VORBIS_COMMENT);
 297
 298 #if FLAC__HAS_OGG
 299         if(decoder_session->is_ogg) {
 300                 if(!decoder_session->use_first_serial_number)
 301                         FLAC__stream_decoder_set_ogg_serial_number(decoder_session->decoder, decoder_session->serial_number);
 302                 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);
 303         }
 304         else
 305 #endif
 306         {
 307                 init_status = FLAC__stream_decoder_init_file(decoder_session->decoder, strcmp(infilename, "-")? infilename : 0, write_callback, metadata_callback, error_callback, /*client_data=*/decoder_session);
 308         }
 309
 310         if(init_status != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
 311                 print_error_with_init_status(decoder_session, "ERROR initializing decoder", init_status);
 312                 return false;
 313         }
 314
 315         return true;
 316 }
 317
 318 FLAC__bool DecoderSession_process(DecoderSession *d)
 319 {
 320         if(!FLAC__stream_decoder_process_until_end_of_metadata(d->decoder)) {
 321                 flac__utils_printf(stderr, 2, "\n");
 322                 print_error_with_state(d, "ERROR while decoding metadata");
 323                 return false;
 324         }
 325         if(FLAC__stream_decoder_get_state(d->decoder) > FLAC__STREAM_DECODER_END_OF_STREAM) {
 326                 flac__utils_printf(stderr, 2, "\n");
 327                 print_error_with_state(d, "ERROR during metadata decoding");
 328                 if(!d->continue_through_decode_errors)
 329                         return false;
 330         }
 331
 332         if(d->abort_flag)
 333                 return false;
 334
 335         /* set channel mapping */
 336         /* currently FLAC order matches SMPTE/WAVEFORMATEXTENSIBLE order, so no reordering is necessary; see encode.c */
 337         /* only the channel mask must be set if it was not already picked up from the WAVEFORMATEXTENSIBLE_CHANNEL_MASK tag */
 338         if(!d->channel_map_none && d->channel_mask == 0) {
 339                 if(d->channels == 1) {
 340                         d->channel_mask = 0x0001;
 341                 }
 342                 else if(d->channels == 2) {
 343                         d->channel_mask = 0x0003;
 344                 }
 345                 else if(d->channels == 3) {
 346                         d->channel_mask = 0x0007;
 347                 }
 348                 else if(d->channels == 4) {
 349                         d->channel_mask = 0x0033;
 350                 }
 351                 else if(d->channels == 5) {
 352                         d->channel_mask = 0x0607;
 353                 }
 354                 else if(d->channels == 6) {
 355                         d->channel_mask = 0x060f;
 356                 }
 357                 else if(d->channels == 7) {
 358                         d->channel_mask = 0x070f;
 359                 }
 360                 else if(d->channels == 8) {
 361                         d->channel_mask = 0x063f;
 362                 }
 363         }
 364
 365         /* write the WAVE/AIFF headers if necessary */
 366         if(!d->analysis_mode && !d->test_only && d->format != FORMAT_RAW) {
 367                 if(!write_iff_headers(d->fout, d, d->total_samples)) {
 368                         d->abort_flag = true;
 369                         return false;
 370                 }
 371         }
 372
 373         if(d->skip_specification->value.samples > 0) {
 374                 const FLAC__uint64 skip = (FLAC__uint64)d->skip_specification->value.samples;
 375
 376                 if(!FLAC__stream_decoder_seek_absolute(d->decoder, skip)) {
 377                         print_error_with_state(d, "ERROR seeking while skipping bytes");
 378                         return false;
 379                 }
 380         }
 381         if(!FLAC__stream_decoder_process_until_end_of_stream(d->decoder) && !d->aborting_due_to_until) {
 382                 flac__utils_printf(stderr, 2, "\n");
 383                 print_error_with_state(d, "ERROR while decoding data");
 384                 if(!d->continue_through_decode_errors)
 385                         return false;
 386         }
 387         if(
 388                 (d->abort_flag && !(d->aborting_due_to_until || d->continue_through_decode_errors)) ||
 389                 (FLAC__stream_decoder_get_state(d->decoder) > FLAC__STREAM_DECODER_END_OF_STREAM && !d->aborting_due_to_until)
 390         ) {
 391                 flac__utils_printf(stderr, 2, "\n");
 392                 print_error_with_state(d, "ERROR during decoding");
 393                 return false;
 394         }
 395
 396         /* write padding bytes for alignment if necessary */
 397         if(!d->analysis_mode && !d->test_only && d->format != FORMAT_RAW) {
 398                 const FLAC__uint64 data_size = d->total_samples * d->channels * ((d->bps+7)/8);
 399                 unsigned padding;
 400                 if(d->format != FORMAT_WAVE64) {
 401                         padding = (unsigned)(data_size & 1);
 402                 }
 403                 else {
 404                         /* 8-byte alignment for Wave64 */
 405                         padding = (8 - (unsigned)(data_size & 7)) & 7;
 406                 }
 407                 for( ; padding > 0; --padding) {
 408                         if(flac__utils_fwrite("\000", 1, 1, d->fout) != 1) {
 409                                 print_error_with_state(
 410                                         d,
 411                                         d->format == FORMAT_WAVE?   "ERROR writing pad byte to WAVE data chunk" :
 412                                         d->format == FORMAT_WAVE64? "ERROR writing pad bytes to WAVE64 data chunk" :
 413                                         d->format == FORMAT_RF64?   "ERROR writing pad byte to RF64 data chunk" :
 414                                         "ERROR writing pad byte to AIFF SSND chunk"
 415                                 );
 416                                 return false;
 417                         }
 418                 }
 419         }
 420
 421         return true;
 422 }
 423
 424 int DecoderSession_finish_ok(DecoderSession *d)
 425 {
 426         FLAC__bool ok = true, md5_failure = false;
 427
 428         if(d->decoder) {
 429                 md5_failure = !FLAC__stream_decoder_finish(d->decoder) && !d->aborting_due_to_until;
 430                 print_stats(d);
 431                 FLAC__stream_decoder_delete(d->decoder);
 432         }
 433         if(d->analysis_mode)
 434                 flac__analyze_finish(d->aopts);
 435         if(md5_failure) {
 436                 flac__utils_printf(stderr, 1, "\r%s: ERROR, MD5 signature mismatch\n", d->inbasefilename);
 437                 ok = d->continue_through_decode_errors;
 438         }
 439         else {
 440                 if(!d->got_stream_info) {
 441                         flac__utils_printf(stderr, 1, "\r%s: WARNING, cannot check MD5 signature since there was no STREAMINFO\n", d->inbasefilename);
 442                         ok = !d->treat_warnings_as_errors;
 443                 }
 444                 else if(!d->has_md5sum) {
 445                         flac__utils_printf(stderr, 1, "\r%s: WARNING, cannot check MD5 signature since it was unset in the STREAMINFO\n", d->inbasefilename);
 446                         ok = !d->treat_warnings_as_errors;
 447                 }
 448                 flac__utils_printf(stderr, 2, "\r%s: %s         \n", d->inbasefilename, d->test_only? "ok           ":d->analysis_mode?"done           ":"done");
 449         }
 450         DecoderSession_destroy(d, /*error_occurred=*/!ok);
 451         if(!d->analysis_mode && !d->test_only && d->format != FORMAT_RAW) {
 452                 if(d->iff_headers_need_fixup || (!d->got_stream_info && strcmp(d->outfilename, "-"))) {
 453                         if(!fixup_iff_headers(d))
 454                                 return 1;
 455                 }
 456                 if(d->foreign_metadata) {
 457                         const char *error;
 458                         if(!flac__foreign_metadata_write_to_iff(d->foreign_metadata, d->infilename, d->outfilename, d->fm_offset1, d->fm_offset2, d->fm_offset3, &error)) {
 459                                 flac__utils_printf(stderr, 1, "ERROR updating foreign metadata from %s to %s: %s\n", d->infilename, d->outfilename, error);
 460                                 return 1;
 461                         }
 462                 }
 463         }
 464         return ok? 0 : 1;
 465 }
 466
 467 int DecoderSession_finish_error(DecoderSession *d)
 468 {
 469         if(d->decoder) {
 470                 (void)FLAC__stream_decoder_finish(d->decoder);
 471                 FLAC__stream_decoder_delete(d->decoder);
 472         }
 473         if(d->analysis_mode)
 474                 flac__analyze_finish(d->aopts);
 475         DecoderSession_destroy(d, /*error_occurred=*/true);
 476         return 1;
 477 }
 478
 479 FLAC__bool canonicalize_until_specification(utils__SkipUntilSpecification *spec, const char *inbasefilename, unsigned sample_rate, FLAC__uint64 skip, FLAC__uint64 total_samples_in_input)
 480 {
 481         /* convert from mm:ss.sss to sample number if necessary */
 482         flac__utils_canonicalize_skip_until_specification(spec, sample_rate);
 483
 484         /* special case: if "--until=-0", use the special value '0' to mean "end-of-stream" */
 485         if(spec->is_relative && spec->value.samples == 0) {
 486                 spec->is_relative = false;
 487                 return true;
 488         }
 489
 490         /* in any other case the total samples in the input must be known */
 491         if(total_samples_in_input == 0) {
 492                 flac__utils_printf(stderr, 1, "%s: ERROR, cannot use --until when FLAC metadata has total sample count of 0\n", inbasefilename);
 493                 return false;
 494         }
 495
 496         FLAC__ASSERT(spec->value_is_samples);
 497
 498         /* convert relative specifications to absolute */
 499         if(spec->is_relative) {
 500                 if(spec->value.samples <= 0)
 501                         spec->value.samples += (FLAC__int64)total_samples_in_input;
 502                 else
 503                         spec->value.samples += skip;
 504                 spec->is_relative = false;
 505         }
 506
 507         /* error check */
 508         if(spec->value.samples < 0) {
 509                 flac__utils_printf(stderr, 1, "%s: ERROR, --until value is before beginning of input\n", inbasefilename);
 510                 return false;
 511         }
 512         if((FLAC__uint64)spec->value.samples <= skip) {
 513                 flac__utils_printf(stderr, 1, "%s: ERROR, --until value is before --skip point\n", inbasefilename);
 514                 return false;
 515         }
 516         if((FLAC__uint64)spec->value.samples > total_samples_in_input) {
 517                 flac__utils_printf(stderr, 1, "%s: ERROR, --until value is after end of input\n", inbasefilename);
 518                 return false;
 519         }
 520
 521         return true;
 522 }
 523
 524 FLAC__bool write_iff_headers(FILE *f, DecoderSession *decoder_session, FLAC__uint64 samples)
 525 {
 526         const FileFormat format = decoder_session->format;
 527         const char *fmt_desc =
 528                 format==FORMAT_WAVE? "WAVE" :
 529                 format==FORMAT_WAVE64? "Wave64" :
 530                 format==FORMAT_RF64? "RF64" :
 531                 "AIFF";
 532         const FLAC__bool is_waveformatextensible =
 533                 (format == FORMAT_WAVE || format == FORMAT_WAVE64 || format == FORMAT_RF64) &&
 534                 (
 535                         decoder_session->channel_mask == 2 ||
 536                         decoder_session->channel_mask > 3 ||
 537                         decoder_session->bps%8 ||
 538                         decoder_session->channels > 2
 539                 );
 540         const FLAC__uint64 data_size = samples * decoder_session->channels * ((decoder_session->bps+7)/8);
 541         const FLAC__uint64 aligned_data_size =
 542                 format == FORMAT_WAVE64?
 543                         (data_size+7) & (~(FLAC__uint64)7) :
 544                         (data_size+1) & (~(FLAC__uint64)1);
 545
 546         FLAC__uint64 iff_size;
 547         unsigned foreign_metadata_size = 0; /* size of all non-audio non-fmt/COMM foreign metadata chunks */
 548         foreign_metadata_t *fm = decoder_session->foreign_metadata;
 549         size_t i;
 550
 551         FLAC__ASSERT(
 552                 format == FORMAT_WAVE ||
 553                 format == FORMAT_WAVE64 ||
 554                 format == FORMAT_RF64 ||
 555                 format == FORMAT_AIFF ||
 556                 format == FORMAT_AIFF_C
 557         );
 558
 559         if(samples == 0) {
 560                 if(f == stdout) {
 561                         flac__utils_printf(stderr, 1, "%s: WARNING, don't have accurate sample count available for %s header.\n", decoder_session->inbasefilename, fmt_desc);
 562                         flac__utils_printf(stderr, 1, "             Generated %s file will have a data chunk size of 0.  Try\n", fmt_desc);
 563                         flac__utils_printf(stderr, 1, "             decoding directly to a file instead.\n");
 564                         if(decoder_session->treat_warnings_as_errors)
 565                                 return false;
 566                 }
 567                 else {
 568                         decoder_session->iff_headers_need_fixup = true;
 569                 }
 570         }
 571
 572         if(fm) {
 573                 FLAC__ASSERT(fm->format_block);
 574                 FLAC__ASSERT(fm->audio_block);
 575                 FLAC__ASSERT(fm->format_block < fm->audio_block);
 576                 /* calc foreign metadata size; we always skip the first chunk, ds64 chunk, format chunk, and sound chunk since we write our own */
 577                 for(i = format==FORMAT_RF64?2:1; i < fm->num_blocks; i++) {
 578                         if(i != fm->format_block && i != fm->audio_block)
 579                                 foreign_metadata_size += fm->blocks[i].size;
 580                 }
 581         }
 582
 583         if(samples == 0)
 584                 iff_size = 0;
 585         else if(format == FORMAT_WAVE || format == FORMAT_RF64)
 586                 /* 4 for WAVE form bytes */
 587                 /* +{36,0} for ds64 chunk */
 588                 /* +8+{40,16} for fmt chunk header and body */
 589                 /* +8 for data chunk header */
 590                 iff_size = 4 + (format==FORMAT_RF64?36:0) + 8+(is_waveformatextensible?40:16) + 8 + foreign_metadata_size + aligned_data_size;
 591         else if(format == FORMAT_WAVE64)
 592                 /* 16+8 for RIFF GUID and size field */
 593                 /* +16 for WAVE GUID */
 594                 /* +16+8+{40,16} for fmt chunk header (GUID and size field) and body */
 595                 /* +16+8 for data chunk header (GUID and size field) */
 596                 iff_size = 16+8 + 16 + 16+8+(is_waveformatextensible?40:16) + 16+8 + foreign_metadata_size + aligned_data_size;
 597         else /* AIFF */
 598                 iff_size = 46 + foreign_metadata_size + aligned_data_size;
 599
 600         if(format != FORMAT_WAVE64 && format != FORMAT_RF64 && iff_size >= 0xFFFFFFF4) {
 601                 flac__utils_printf(stderr, 1, "%s: ERROR: stream is too big to fit in a single %s file\n", decoder_session->inbasefilename, fmt_desc);
 602                 return false;
 603         }
 604
 605         if(format == FORMAT_WAVE || format == FORMAT_WAVE64 || format == FORMAT_RF64) {
 606                 /* RIFF header */
 607                 switch(format) {
 608                         case FORMAT_WAVE:
 609                                 if(flac__utils_fwrite("RIFF", 1, 4, f) != 4)
 610                                         return false;
 611                                 if(!write_little_endian_uint32(f, (FLAC__uint32)iff_size)) /* filesize-8 */
 612                                         return false;
 613                                 if(flac__utils_fwrite("WAVE", 1, 4, f) != 4)
 614                                         return false;
 615                                 break;
 616                         case FORMAT_WAVE64:
 617                                 /* RIFF GUID 66666972-912E-11CF-A5D6-28DB04C10000 */
 618                                 if(flac__utils_fwrite("\x72\x69\x66\x66\x2E\x91\xCF\x11\xA5\xD6\x28\xDB\x04\xC1\x00\x00", 1, 16, f) != 16)
 619                                         return false;
 620                                 if(!write_little_endian_uint64(f, iff_size))
 621                                         return false;
 622                                 /* WAVE GUID 65766177-ACF3-11D3-8CD1-00C04F8EDB8A */
 623                                 if(flac__utils_fwrite("\x77\x61\x76\x65\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A", 1, 16, f) != 16)
 624                                         return false;
 625                                 break;
 626                         case FORMAT_RF64:
 627                                 if(flac__utils_fwrite("RF64", 1, 4, f) != 4)
 628                                         return false;
 629                                 if(!write_little_endian_uint32(f, 0xffffffff))
 630                                         return false;
 631                                 if(flac__utils_fwrite("WAVE", 1, 4, f) != 4)
 632                                         return false;
 633                                 break;
 634                         default:
 635                                 return false;
 636                 }
 637
 638                 /* ds64 chunk for RF64 */
 639                 if(format == FORMAT_RF64) {
 640                         if(flac__utils_fwrite("ds64", 1, 4, f) != 4)
 641                                 return false;
 642
 643                         if(!write_little_endian_uint32(f, 28)) /* chunk size */
 644                                 return false;
 645
 646                         if(!write_little_endian_uint64(f, iff_size))
 647                                 return false;
 648
 649                         if(!write_little_endian_uint64(f, data_size))
 650                                 return false;
 651
 652                         if(!write_little_endian_uint64(f, samples)) /*@@@@@@ correct? */
 653                                 return false;
 654
 655                         if(!write_little_endian_uint32(f, 0)) /* table size */
 656                                 return false;
 657                 }
 658
 659                 decoder_session->fm_offset1 = ftello(f);
 660
 661                 if(fm) {
 662                         /* seek forward to {allocate} or {skip over already-written chunks} before "fmt " */
 663                         for(i = format==FORMAT_RF64?2:1; i < fm->format_block; i++) {
 664                                 if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) {
 665                                         flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata before \"fmt \"\n", decoder_session->inbasefilename);
 666                                         return false;
 667                                 }
 668                         }
 669                 }
 670
 671                 if(format != FORMAT_WAVE64) {
 672                         if(flac__utils_fwrite("fmt ", 1, 4, f) != 4)
 673                                 return false;
 674                         if(!write_little_endian_uint32(f, is_waveformatextensible? 40 : 16)) /* chunk size */
 675                                 return false;
 676                 }
 677                 else { /* Wave64 */
 678                         /* fmt GUID 20746D66-ACF3-11D3-8CD1-00C04F8EDB8A */
 679                         if(flac__utils_fwrite("\x66\x6D\x74\x20\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A", 1, 16, f) != 16)
 680                                 return false;
 681                         /* chunk size (+16+8 for GUID and size fields) */
 682                         if(!write_little_endian_uint64(f, 16+8+(is_waveformatextensible?40:16)))
 683                                 return false;
 684                 }
 685
 686                 if(!write_riff_wave_fmt_chunk_body(f, is_waveformatextensible, decoder_session->bps, decoder_session->channels, decoder_session->sample_rate, decoder_session->channel_mask))
 687                         return false;
 688
 689                 decoder_session->fm_offset2 = ftello(f);
 690
 691                 if(fm) {
 692                         /* seek forward to {allocate} or {skip over already-written chunks} after "fmt " but before "data" */
 693                         for(i = fm->format_block+1; i < fm->audio_block; i++) {
 694                                 if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) {
 695                                         flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata after \"fmt \"\n", decoder_session->inbasefilename);
 696                                         return false;
 697                                 }
 698                         }
 699                 }
 700
 701                 if(format != FORMAT_WAVE64) {
 702                         if(flac__utils_fwrite("data", 1, 4, f) != 4)
 703                                 return false;
 704                         if(!write_little_endian_uint32(f, format==FORMAT_RF64? 0xffffffff : (FLAC__uint32)data_size))
 705                                 return false;
 706                 }
 707                 else { /* Wave64 */
 708                         /* data GUID 61746164-ACF3-11D3-8CD1-00C04F8EDB8A */
 709                         if(flac__utils_fwrite("\x64\x61\x74\x61\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A", 1, 16, f) != 16)
 710                                 return false;
 711                         /* +16+8 for GUID and size fields */
 712                         if(!write_little_endian_uint64(f, 16+8 + data_size))
 713                                 return false;
 714                 }
 715
 716                 decoder_session->fm_offset3 = ftello(f) + aligned_data_size;
 717         }
 718         else {
 719                 if(flac__utils_fwrite("FORM", 1, 4, f) != 4)
 720                         return false;
 721
 722                 if(!write_big_endian_uint32(f, (FLAC__uint32)iff_size)) /* filesize-8 */
 723                         return false;
 724
 725                 if(flac__utils_fwrite("AIFF", 1, 4, f) != 4)
 726                         return false;
 727
 728                 decoder_session->fm_offset1 = ftello(f);
 729
 730                 if(fm) {
 731                         /* seek forward to {allocate} or {skip over already-written chunks} before "COMM" */
 732                         for(i = 1; i < fm->format_block; i++) {
 733                                 if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) {
 734                                         flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata before \"COMM\"\n", decoder_session->inbasefilename);
 735                                         return false;
 736                                 }
 737                         }
 738                 }
 739
 740                 if(!write_aiff_form_comm_chunk(f, samples, decoder_session->bps, decoder_session->channels, decoder_session->sample_rate))
 741                         return false;
 742
 743                 decoder_session->fm_offset2 = ftello(f);
 744
 745                 if(fm) {
 746                         /* seek forward to {allocate} or {skip over already-written chunks} after "COMM" but before "SSND" */
 747                         for(i = fm->format_block+1; i < fm->audio_block; i++) {
 748                                 if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) {
 749                                         flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata after \"COMM\"\n", decoder_session->inbasefilename);
 750                                         return false;
 751                                 }
 752                         }
 753                 }
 754
 755                 if(flac__utils_fwrite("SSND", 1, 4, f) != 4)
 756                         return false;
 757
 758                 if(!write_big_endian_uint32(f, (FLAC__uint32)data_size + 8)) /* data size */
 759                         return false;
 760
 761                 if(!write_big_endian_uint32(f, 0/*offset_size*/))
 762                         return false;
 763
 764                 if(!write_big_endian_uint32(f, 0/*block_size*/))
 765                         return false;
 766
 767                 decoder_session->fm_offset3 = ftello(f) + aligned_data_size;
 768         }
 769
 770         return true;
 771 }
 772
 773 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)
 774 {
 775         if(!write_little_endian_uint16(f, (FLAC__uint16)(is_waveformatextensible? 65534 : 1))) /* compression code */
 776                 return false;
 777
 778         if(!write_little_endian_uint16(f, (FLAC__uint16)channels))
 779                 return false;
 780
 781         if(!write_little_endian_uint32(f, sample_rate))
 782                 return false;
 783
 784         if(!write_little_endian_uint32(f, sample_rate * channels * ((bps+7) / 8)))
 785                 return false;
 786
 787         if(!write_little_endian_uint16(f, (FLAC__uint16)(channels * ((bps+7) / 8)))) /* block align */
 788                 return false;
 789
 790         if(!write_little_endian_uint16(f, (FLAC__uint16)(((bps+7)/8)*8))) /* bits per sample */
 791                 return false;
 792
 793         if(is_waveformatextensible) {
 794                 if(!write_little_endian_uint16(f, (FLAC__uint16)22)) /* cbSize */
 795                         return false;
 796
 797                 if(!write_little_endian_uint16(f, (FLAC__uint16)bps)) /* validBitsPerSample */
 798                         return false;
 799
 800                 if(!write_little_endian_uint32(f, channel_mask))
 801                         return false;
 802
 803                 /* GUID = {0x00000001, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}} */
 804                 if(flac__utils_fwrite("\x01\x00\x00\x00\x00\x00\x10\x00\x80\x00\x00\xaa\x00\x38\x9b\x71", 1, 16, f) != 16)
 805                         return false;
 806         }
 807
 808         return true;
 809 }
 810
 811 FLAC__bool write_aiff_form_comm_chunk(FILE *f, FLAC__uint64 samples, unsigned bps, unsigned channels, unsigned sample_rate)
 812 {
 813         FLAC__ASSERT(samples <= 0xffffffff);
 814
 815         if(flac__utils_fwrite("COMM", 1, 4, f) != 4)
 816                 return false;
 817
 818         if(!write_big_endian_uint32(f, 18)) /* chunk size = 18 */
 819                 return false;
 820
 821         if(!write_big_endian_uint16(f, (FLAC__uint16)channels))
 822                 return false;
 823
 824         if(!write_big_endian_uint32(f, (FLAC__uint32)samples))
 825                 return false;
 826
 827         if(!write_big_endian_uint16(f, (FLAC__uint16)bps))
 828                 return false;
 829
 830         if(!write_sane_extended(f, sample_rate))
 831                 return false;
 832
 833         return true;
 834 }
 835
 836 FLAC__bool write_little_endian_uint16(FILE *f, FLAC__uint16 val)
 837 {
 838         FLAC__byte *b = (FLAC__byte*)(&val);
 839         if(is_big_endian_host_) {
 840                 FLAC__byte tmp;
 841                 tmp = b[1]; b[1] = b[0]; b[0] = tmp;
 842         }
 843         return flac__utils_fwrite(b, 1, 2, f) == 2;
 844 }
 845
 846 FLAC__bool write_little_endian_uint32(FILE *f, FLAC__uint32 val)
 847 {
 848         FLAC__byte *b = (FLAC__byte*)(&val);
 849         if(is_big_endian_host_) {
 850                 FLAC__byte tmp;
 851                 tmp = b[3]; b[3] = b[0]; b[0] = tmp;
 852                 tmp = b[2]; b[2] = b[1]; b[1] = tmp;
 853         }
 854         return flac__utils_fwrite(b, 1, 4, f) == 4;
 855 }
 856
 857 FLAC__bool write_little_endian_uint64(FILE *f, FLAC__uint64 val)
 858 {
 859         FLAC__byte *b = (FLAC__byte*)(&val);
 860         if(is_big_endian_host_) {
 861                 FLAC__byte tmp;
 862                 tmp = b[7]; b[7] = b[0]; b[0] = tmp;
 863                 tmp = b[6]; b[6] = b[1]; b[1] = tmp;
 864                 tmp = b[5]; b[5] = b[2]; b[2] = tmp;
 865                 tmp = b[4]; b[4] = b[3]; b[3] = tmp;
 866         }
 867         return flac__utils_fwrite(b, 1, 8, f) == 8;
 868 }
 869
 870 FLAC__bool write_big_endian_uint16(FILE *f, FLAC__uint16 val)
 871 {
 872         FLAC__byte *b = (FLAC__byte*)(&val);
 873         if(!is_big_endian_host_) {
 874                 FLAC__byte tmp;
 875                 tmp = b[1]; b[1] = b[0]; b[0] = tmp;
 876         }
 877         return flac__utils_fwrite(b, 1, 2, f) == 2;
 878 }
 879
 880 FLAC__bool write_big_endian_uint32(FILE *f, FLAC__uint32 val)
 881 {
 882         FLAC__byte *b = (FLAC__byte*)(&val);
 883         if(!is_big_endian_host_) {
 884                 FLAC__byte tmp;
 885                 tmp = b[3]; b[3] = b[0]; b[0] = tmp;
 886                 tmp = b[2]; b[2] = b[1]; b[1] = tmp;
 887         }
 888         return flac__utils_fwrite(b, 1, 4, f) == 4;
 889 }
 890
 891 FLAC__bool write_sane_extended(FILE *f, unsigned val)
 892         /* Write to 'f' a SANE extended representation of 'val'.  Return false if
 893         * the write succeeds; return true otherwise.
 894         *
 895         * SANE extended is an 80-bit IEEE-754 representation with sign bit, 15 bits
 896         * of exponent, and 64 bits of significand (mantissa).  Unlike most IEEE-754
 897         * representations, it does not imply a 1 above the MSB of the significand.
 898         *
 899         * Preconditions:
 900         *  val!=0U
 901         */
 902 {
 903         unsigned int shift, exponent;
 904
 905         FLAC__ASSERT(val!=0U); /* handling 0 would require a special case */
 906
 907         for(shift= 0U; (val>>(31-shift))==0U; ++shift)
 908                 ;
 909         val<<= shift;
 910         exponent= 63U-(shift+32U); /* add 32 for unused second word */
 911
 912         if(!write_big_endian_uint16(f, (FLAC__uint16)(exponent+0x3FFF)))
 913                 return false;
 914         if(!write_big_endian_uint32(f, val))
 915                 return false;
 916         if(!write_big_endian_uint32(f, 0)) /* unused second word */
 917                 return false;
 918
 919         return true;
 920 }
 921
 922 FLAC__bool fixup_iff_headers(DecoderSession *d)
 923 {
 924         const char *fmt_desc =
 925                 d->format==FORMAT_WAVE? "WAVE" :
 926                 d->format==FORMAT_WAVE64? "Wave64" :
 927                 d->format==FORMAT_RF64? "RF64" :
 928                 "AIFF";
 929         FILE *f = fopen(d->outfilename, "r+b"); /* stream is positioned at beginning of file */
 930
 931         if(0 == f) {
 932                 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));
 933                 return false;
 934         }
 935
 936         if(!write_iff_headers(f, d, d->samples_processed)) {
 937                 fclose(f);
 938                 return false;
 939         }
 940
 941         fclose(f);
 942         return true;
 943 }
 944
 945 FLAC__StreamDecoderWriteStatus write_callback(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
 946 {
 947         DecoderSession *decoder_session = (DecoderSession*)client_data;
 948         FILE *fout = decoder_session->fout;
 949         const unsigned bps = frame->header.bits_per_sample, channels = frame->header.channels;
 950         const unsigned shift = (decoder_session->format != FORMAT_RAW && (bps%8))? 8-(bps%8): 0;
 951         FLAC__bool is_big_endian = (
 952                 decoder_session->format == FORMAT_AIFF || decoder_session->format == FORMAT_AIFF_C ? true : (
 953                 decoder_session->format == FORMAT_WAVE || decoder_session->format == FORMAT_WAVE64 || decoder_session->format == FORMAT_RF64 ? false :
 954                 decoder_session->is_big_endian
 955         ));
 956         FLAC__bool is_unsigned_samples = (
 957                 decoder_session->format == FORMAT_AIFF || decoder_session->format == FORMAT_AIFF_C ? false : (
 958                 decoder_session->format == FORMAT_WAVE || decoder_session->format == FORMAT_WAVE64 || decoder_session->format == FORMAT_RF64 ? bps<=8 :
 959                 decoder_session->is_unsigned_samples
 960         ));
 961         unsigned wide_samples = frame->header.blocksize, wide_sample, sample, channel, byte;
 962         unsigned frame_bytes = 0;
 963         static FLAC__int8 s8buffer[FLAC__MAX_BLOCK_SIZE * FLAC__MAX_CHANNELS * sizeof(FLAC__int32)]; /* WATCHOUT: can be up to 2 megs */
 964         FLAC__uint8  *u8buffer  = (FLAC__uint8  *)s8buffer;
 965         FLAC__int16  *s16buffer = (FLAC__int16  *)s8buffer;
 966         FLAC__uint16 *u16buffer = (FLAC__uint16 *)s8buffer;
 967         FLAC__int32  *s32buffer = (FLAC__int32  *)s8buffer;
 968         FLAC__uint32 *u32buffer = (FLAC__uint32 *)s8buffer;
 969         size_t bytes_to_write = 0;
 970
 971         (void)decoder;
 972
 973         if(decoder_session->abort_flag)
 974                 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
 975
 976         /* sanity-check the bits-per-sample */
 977         if(decoder_session->bps) {
 978                 if(bps != decoder_session->bps) {
 979                         if(decoder_session->got_stream_info)
 980                                 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);
 981                         else
 982                                 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);
 983                         if(!decoder_session->continue_through_decode_errors)
 984                                 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
 985                 }
 986         }
 987         else {
 988                 /* must not have gotten STREAMINFO, save the bps from the frame header */
 989                 FLAC__ASSERT(!decoder_session->got_stream_info);
 990                 decoder_session->bps = bps;
 991         }
 992
 993         /* sanity-check the #channels */
 994         if(decoder_session->channels) {
 995                 if(channels != decoder_session->channels) {
 996                         if(decoder_session->got_stream_info)
 997                                 flac__utils_printf(stderr, 1, "%s: ERROR, channels is %u in frame but %u in STREAMINFO\n", decoder_session->inbasefilename, channels, decoder_session->channels);
 998                         else
 999                                 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);
1000                         if(!decoder_session->continue_through_decode_errors)
1001                                 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1002                 }
1003         }
1004         else {
1005                 /* must not have gotten STREAMINFO, save the #channels from the frame header */
1006                 FLAC__ASSERT(!decoder_session->got_stream_info);
1007                 decoder_session->channels = channels;
1008         }
1009
1010         /* sanity-check the sample rate */
1011         if(decoder_session->sample_rate) {
1012                 if(frame->header.sample_rate != decoder_session->sample_rate) {
1013                         if(decoder_session->got_stream_info)
1014                                 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);
1015                         else
1016                                 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);
1017                         if(!decoder_session->continue_through_decode_errors)
1018                                 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1019                 }
1020         }
1021         else {
1022                 /* must not have gotten STREAMINFO, save the sample rate from the frame header */
1023                 FLAC__ASSERT(!decoder_session->got_stream_info);
1024                 decoder_session->sample_rate = frame->header.sample_rate;
1025         }
1026
1027         /*
1028          * limit the number of samples to accept based on --until
1029          */
1030         FLAC__ASSERT(!decoder_session->skip_specification->is_relative);
1031         /* if we never got the total_samples from the metadata, the skip and until specs would never have been canonicalized, so protect against that: */
1032         if(decoder_session->skip_specification->is_relative) {
1033                 if(decoder_session->skip_specification->value.samples == 0) /* special case for when no --skip was given */
1034                         decoder_session->skip_specification->is_relative = false; /* convert to our meaning of beginning-of-stream */
1035                 else {
1036                         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);
1037                         return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1038                 }
1039         }
1040         if(decoder_session->until_specification->is_relative) {
1041                 if(decoder_session->until_specification->value.samples == 0) /* special case for when no --until was given */
1042                         decoder_session->until_specification->is_relative = false; /* convert to our meaning of end-of-stream */
1043                 else {
1044                         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);
1045                         return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1046                 }
1047         }
1048         FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0);
1049         FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0);
1050         if(decoder_session->until_specification->value.samples > 0) {
1051                 const FLAC__uint64 skip = (FLAC__uint64)decoder_session->skip_specification->value.samples;
1052                 const FLAC__uint64 until = (FLAC__uint64)decoder_session->until_specification->value.samples;
1053                 const FLAC__uint64 input_samples_passed = skip + decoder_session->samples_processed;
1054                 FLAC__ASSERT(until >= input_samples_passed);
1055                 if(input_samples_passed + wide_samples > until)
1056                         wide_samples = (unsigned)(until - input_samples_passed);
1057                 if (wide_samples == 0) {
1058                         decoder_session->abort_flag = true;
1059                         decoder_session->aborting_due_to_until = true;
1060                         return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1061                 }
1062         }
1063
1064         if(decoder_session->analysis_mode) {
1065                 FLAC__uint64 dpos;
1066                 FLAC__stream_decoder_get_decode_position(decoder_session->decoder, &dpos);
1067                 frame_bytes = (unsigned)(dpos-decoder_session->decode_position);
1068                 decoder_session->decode_position = dpos;
1069         }
1070
1071         if(wide_samples > 0) {
1072                 decoder_session->samples_processed += wide_samples;
1073                 decoder_session->frame_counter++;
1074
1075                 if(!(decoder_session->frame_counter & 0x3f))
1076                         print_stats(decoder_session);
1077
1078                 if(decoder_session->analysis_mode) {
1079                         flac__analyze_frame(frame, decoder_session->frame_counter-1, decoder_session->decode_position-frame_bytes, frame_bytes, decoder_session->aopts, fout);
1080                 }
1081                 else if(!decoder_session->test_only) {
1082                         if(shift && !decoder_session->replaygain.apply) {
1083                                 for(wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1084                                         for(channel = 0; channel < channels; channel++)
1085                                                 ((FLAC__int32**)buffer)[channel][wide_sample] <<= shift;/*@@@@@@un-const'ing the buffer is hacky but safe*/
1086                         }
1087                         if(decoder_session->replaygain.apply) {
1088                                 bytes_to_write = FLAC__replaygain_synthesis__apply_gain(
1089                                         u8buffer,
1090                                         !is_big_endian,
1091                                         is_unsigned_samples,
1092                                         buffer,
1093                                         wide_samples,
1094                                         channels,
1095                                         bps, /* source_bps */
1096                                         bps+shift, /* target_bps */
1097                                         decoder_session->replaygain.scale,
1098                                         decoder_session->replaygain.spec.limiter == RGSS_LIMIT__HARD, /* hard_limit */
1099                                         decoder_session->replaygain.spec.noise_shaping != NOISE_SHAPING_NONE, /* do_dithering */
1100                                         &decoder_session->replaygain.dither_context
1101                                 );
1102                         }
1103                         /* first some special code for common cases */
1104                         else if(is_big_endian == is_big_endian_host_ && !is_unsigned_samples && channels == 2 && bps+shift == 16) {
1105                                 FLAC__int16 *buf1_ = s16buffer + 1;
1106                                 if(is_big_endian)
1107                                         memcpy(s16buffer, ((FLAC__byte*)(buffer[0]))+2, sizeof(FLAC__int32) * wide_samples - 2);
1108                                 else
1109                                         memcpy(s16buffer, buffer[0], sizeof(FLAC__int32) * wide_samples);
1110                                 for(sample = 0; sample < wide_samples; sample++, buf1_+=2)
1111                                         *buf1_ = (FLAC__int16)buffer[1][sample];
1112                                 bytes_to_write = 4 * sample;
1113                         }
1114                         else if(is_big_endian == is_big_endian_host_ && !is_unsigned_samples && channels == 1 && bps+shift == 16) {
1115                                 FLAC__int16 *buf1_ = s16buffer;
1116                                 for(sample = 0; sample < wide_samples; sample++)
1117                                         *buf1_++ = (FLAC__int16)buffer[0][sample];
1118                                 bytes_to_write = 2 * sample;
1119                         }
1120                         /* generic code for the rest */
1121                         else if(bps+shift == 16) {
1122                                 if(is_unsigned_samples) {
1123                                         if(channels == 2) {
1124                                                 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) {
1125                                                         u16buffer[sample++] = (FLAC__uint16)(buffer[0][wide_sample] + 0x8000);
1126                                                         u16buffer[sample++] = (FLAC__uint16)(buffer[1][wide_sample] + 0x8000);
1127                                                 }
1128                                         }
1129                                         else if(channels == 1) {
1130                                                 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1131                                                         u16buffer[sample++] = (FLAC__uint16)(buffer[0][wide_sample] + 0x8000);
1132                                         }
1133                                         else { /* works for any 'channels' but above flavors are faster for 1 and 2 */
1134                                                 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1135                                                         for(channel = 0; channel < channels; channel++, sample++)
1136                                                                 u16buffer[sample] = (FLAC__uint16)(buffer[channel][wide_sample] + 0x8000);
1137                                         }
1138                                 }
1139                                 else {
1140                                         if(channels == 2) {
1141                                                 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) {
1142                                                         s16buffer[sample++] = (FLAC__int16)(buffer[0][wide_sample]);
1143                                                         s16buffer[sample++] = (FLAC__int16)(buffer[1][wide_sample]);
1144                                                 }
1145                                         }
1146                                         else if(channels == 1) {
1147                                                 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1148                                                         s16buffer[sample++] = (FLAC__int16)(buffer[0][wide_sample]);
1149                                         }
1150                                         else { /* works for any 'channels' but above flavors are faster for 1 and 2 */
1151                                                 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1152                                                         for(channel = 0; channel < channels; channel++, sample++)
1153                                                                 s16buffer[sample] = (FLAC__int16)(buffer[channel][wide_sample]);
1154                                         }
1155                                 }
1156                                 if(is_big_endian != is_big_endian_host_) {
1157                                         unsigned char tmp;
1158                                         const unsigned bytes = sample * 2;
1159                                         for(byte = 0; byte < bytes; byte += 2) {
1160                                                 tmp = u8buffer[byte];
1161                                                 u8buffer[byte] = u8buffer[byte+1];
1162                                                 u8buffer[byte+1] = tmp;
1163                                         }
1164                                 }
1165                                 bytes_to_write = 2 * sample;
1166                         }
1167                         else if(bps+shift == 24) {
1168                                 if(is_unsigned_samples) {
1169                                         for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1170                                                 for(channel = 0; channel < channels; channel++, sample++)
1171                                                         u32buffer[sample] = buffer[channel][wide_sample] + 0x800000;
1172                                 }
1173                                 else {
1174                                         for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1175                                                 for(channel = 0; channel < channels; channel++, sample++)
1176                                                         s32buffer[sample] = buffer[channel][wide_sample];
1177                                 }
1178                                 if(is_big_endian != is_big_endian_host_) {
1179                                         unsigned char tmp;
1180                                         const unsigned bytes = sample * 4;
1181                                         for(byte = 0; byte < bytes; byte += 4) {
1182                                                 tmp = u8buffer[byte];
1183                                                 u8buffer[byte] = u8buffer[byte+3];
1184                                                 u8buffer[byte+3] = tmp;
1185                                                 tmp = u8buffer[byte+1];
1186                                                 u8buffer[byte+1] = u8buffer[byte+2];
1187                                                 u8buffer[byte+2] = tmp;
1188                                         }
1189                                 }
1190                                 if(is_big_endian) {
1191                                         unsigned lbyte;
1192                                         const unsigned bytes = sample * 4;
1193                                         for(lbyte = byte = 0; byte < bytes; ) {
1194                                                 byte++;
1195                                                 u8buffer[lbyte++] = u8buffer[byte++];
1196                                                 u8buffer[lbyte++] = u8buffer[byte++];
1197                                                 u8buffer[lbyte++] = u8buffer[byte++];
1198                                         }
1199                                 }
1200                                 else {
1201                                         unsigned lbyte;
1202                                         const unsigned bytes = sample * 4;
1203                                         for(lbyte = byte = 0; byte < bytes; ) {
1204                                                 u8buffer[lbyte++] = u8buffer[byte++];
1205                                                 u8buffer[lbyte++] = u8buffer[byte++];
1206                                                 u8buffer[lbyte++] = u8buffer[byte++];
1207                                                 byte++;
1208                                         }
1209                                 }
1210                                 bytes_to_write = 3 * sample;
1211                         }
1212                         else if(bps+shift == 8) {
1213                                 if(is_unsigned_samples) {
1214                                         for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1215                                                 for(channel = 0; channel < channels; channel++, sample++)
1216                                                         u8buffer[sample] = (FLAC__uint8)(buffer[channel][wide_sample] + 0x80);
1217                                 }
1218                                 else {
1219                                         for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1220                                                 for(channel = 0; channel < channels; channel++, sample++)
1221                                                         s8buffer[sample] = (FLAC__int8)(buffer[channel][wide_sample]);
1222                                 }
1223                                 bytes_to_write = sample;
1224                         }
1225                         else {
1226                                 FLAC__ASSERT(0);
1227                                 /* double protection */
1228                                 decoder_session->abort_flag = true;
1229                                 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1230                         }
1231                 }
1232         }
1233         if(bytes_to_write > 0) {
1234                 if(flac__utils_fwrite(u8buffer, 1, bytes_to_write, fout) != bytes_to_write) {
1235                         /* if a pipe closed when writing to stdout, we let it go without an error message */
1236                         if(errno == EPIPE && decoder_session->fout == stdout)
1237                                 decoder_session->aborting_due_to_until = true;
1238                         decoder_session->abort_flag = true;
1239                         return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1240                 }
1241         }
1242         return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
1243 }
1244
1245 void metadata_callback(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
1246 {
1247         DecoderSession *decoder_session = (DecoderSession*)client_data;
1248
1249         if(decoder_session->analysis_mode)
1250                 FLAC__stream_decoder_get_decode_position(decoder, &decoder_session->decode_position);
1251
1252         if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO) {
1253                 FLAC__uint64 skip, until;
1254                 decoder_session->got_stream_info = true;
1255                 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);
1256                 decoder_session->bps = metadata->data.stream_info.bits_per_sample;
1257                 decoder_session->channels = metadata->data.stream_info.channels;
1258                 decoder_session->sample_rate = metadata->data.stream_info.sample_rate;
1259
1260                 flac__utils_canonicalize_skip_until_specification(decoder_session->skip_specification, decoder_session->sample_rate);
1261                 FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0);
1262                 skip = (FLAC__uint64)decoder_session->skip_specification->value.samples;
1263
1264                 /* remember, metadata->data.stream_info.total_samples can be 0, meaning 'unknown' */
1265                 if(metadata->data.stream_info.total_samples > 0 && skip >= metadata->data.stream_info.total_samples) {
1266                         flac__utils_printf(stderr, 1, "%s: ERROR trying to --skip more samples than in stream\n", decoder_session->inbasefilename);
1267                         decoder_session->abort_flag = true;
1268                         return;
1269                 }
1270                 else if(metadata->data.stream_info.total_samples == 0 && skip > 0) {
1271                         flac__utils_printf(stderr, 1, "%s: ERROR, can't --skip when FLAC metadata has total sample count of 0\n", decoder_session->inbasefilename);
1272                         decoder_session->abort_flag = true;
1273                         return;
1274                 }
1275                 FLAC__ASSERT(skip == 0 || 0 == decoder_session->cue_specification);
1276                 decoder_session->total_samples = metadata->data.stream_info.total_samples - skip;
1277
1278                 /* note that we use metadata->data.stream_info.total_samples instead of decoder_session->total_samples */
1279                 if(!canonicalize_until_specification(decoder_session->until_specification, decoder_session->inbasefilename, decoder_session->sample_rate, skip, metadata->data.stream_info.total_samples)) {
1280                         decoder_session->abort_flag = true;
1281                         return;
1282                 }
1283                 FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0);
1284                 until = (FLAC__uint64)decoder_session->until_specification->value.samples;
1285
1286                 if(until > 0) {
1287                         FLAC__ASSERT(decoder_session->total_samples != 0);
1288                         FLAC__ASSERT(0 == decoder_session->cue_specification);
1289                         decoder_session->total_samples -= (metadata->data.stream_info.total_samples - until);
1290                 }
1291
1292                 if(decoder_session->bps < 4 || decoder_session->bps > 24) {
1293                         flac__utils_printf(stderr, 1, "%s: ERROR: bits per sample is %u, must be 4-24\n", decoder_session->inbasefilename, decoder_session->bps);
1294                         decoder_session->abort_flag = true;
1295                         return;
1296                 }
1297         }
1298         else if(metadata->type == FLAC__METADATA_TYPE_CUESHEET) {
1299                 /* remember, at this point, decoder_session->total_samples can be 0, meaning 'unknown' */
1300                 if(decoder_session->total_samples == 0) {
1301                         flac__utils_printf(stderr, 1, "%s: ERROR can't use --cue when FLAC metadata has total sample count of 0\n", decoder_session->inbasefilename);
1302                         decoder_session->abort_flag = true;
1303                         return;
1304                 }
1305
1306                 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);
1307
1308                 FLAC__ASSERT(!decoder_session->skip_specification->is_relative);
1309                 FLAC__ASSERT(decoder_session->skip_specification->value_is_samples);
1310
1311                 FLAC__ASSERT(!decoder_session->until_specification->is_relative);
1312                 FLAC__ASSERT(decoder_session->until_specification->value_is_samples);
1313
1314                 FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0);
1315                 FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0);
1316                 FLAC__ASSERT((FLAC__uint64)decoder_session->until_specification->value.samples <= decoder_session->total_samples);
1317                 FLAC__ASSERT(decoder_session->skip_specification->value.samples <= decoder_session->until_specification->value.samples);
1318
1319                 decoder_session->total_samples = decoder_session->until_specification->value.samples - decoder_session->skip_specification->value.samples;
1320         }
1321         else if(metadata->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
1322                 if (decoder_session->replaygain.spec.apply) {
1323                         double reference, gain, peak;
1324                         if (!(decoder_session->replaygain.apply = grabbag__replaygain_load_from_vorbiscomment(metadata, decoder_session->replaygain.spec.use_album_gain, /*strict=*/false, &reference, &gain, &peak))) {
1325                                 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");
1326                                 if(decoder_session->treat_warnings_as_errors) {
1327                                         decoder_session->abort_flag = true;
1328                                         return;
1329                                 }
1330                         }
1331                         else {
1332                                 const char *ls[] = { "no", "peak", "hard" };
1333                                 const char *ns[] = { "no", "low", "medium", "high" };
1334                                 decoder_session->replaygain.scale = grabbag__replaygain_compute_scale_factor(peak, gain, decoder_session->replaygain.spec.preamp, decoder_session->replaygain.spec.limiter == RGSS_LIMIT__PEAK);
1335                                 FLAC__ASSERT(decoder_session->bps > 0 && decoder_session->bps <= 32);
1336                                 FLAC__replaygain_synthesis__init_dither_context(&decoder_session->replaygain.dither_context, decoder_session->bps, decoder_session->replaygain.spec.noise_shaping);
1337                                 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]);
1338                                 flac__utils_printf(stderr, 1, "%s: WARNING: applying ReplayGain is not lossless\n", decoder_session->inbasefilename);
1339                                 /* don't check if(decoder_session->treat_warnings_as_errors) because the user explicitly asked for it */
1340                         }
1341                 }
1342                 (void)flac__utils_get_channel_mask_tag(metadata, &decoder_session->channel_mask);
1343         }
1344 }
1345
1346 void error_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
1347 {
1348         DecoderSession *decoder_session = (DecoderSession*)client_data;
1349         (void)decoder;
1350         if(!decoder_session->error_callback_suppress_messages)
1351                 flac__utils_printf(stderr, 1, "%s: *** Got error code %d:%s\n", decoder_session->inbasefilename, status, FLAC__StreamDecoderErrorStatusString[status]);
1352         if(!decoder_session->continue_through_decode_errors) {
1353                 /* if we got a sync error while looking for metadata, either it's not a FLAC file (more likely) or the file is corrupted */
1354                 if(
1355                         !decoder_session->error_callback_suppress_messages &&
1356                         status == FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC &&
1357                         FLAC__stream_decoder_get_state(decoder) == FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
1358                 ) {
1359                         flac__utils_printf(stderr, 1,
1360                                 "\n"
1361                                 "The input file is either not a FLAC file or is corrupted.  If you are\n"
1362                                 "convinced it is a FLAC file, you can rerun the same command and add the\n"
1363                                 "-F parameter to try and recover as much as possible from the file.\n"
1364                         );
1365                         decoder_session->error_callback_suppress_messages = true;
1366                 }
1367                 else if(status == FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM)
1368                         decoder_session->aborting_due_to_unparseable = true;
1369                 decoder_session->abort_flag = true;
1370         }
1371 }
1372
1373 void print_error_with_init_status(const DecoderSession *d, const char *message, FLAC__StreamDecoderInitStatus init_status)
1374 {
1375         const int ilen = strlen(d->inbasefilename) + 1;
1376
1377         flac__utils_printf(stderr, 1, "\n%s: %s\n", d->inbasefilename, message);
1378
1379         flac__utils_printf(stderr, 1, "%*s init status = %s\n", ilen, "", FLAC__StreamDecoderInitStatusString[init_status]);
1380
1381         /* print out some more info for some errors: */
1382         if (init_status == FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE) {
1383                 flac__utils_printf(stderr, 1,
1384                         "\n"
1385                         "An error occurred opening the input file; it is likely that it does not exist\n"
1386                         "or is not readable.\n"
1387                 );
1388         }
1389 }
1390
1391 void print_error_with_state(const DecoderSession *d, const char *message)
1392 {
1393         const int ilen = strlen(d->inbasefilename) + 1;
1394
1395         flac__utils_printf(stderr, 1, "\n%s: %s\n", d->inbasefilename, message);
1396         flac__utils_printf(stderr, 1, "%*s state = %s\n", ilen, "", FLAC__stream_decoder_get_resolved_state_string(d->decoder));
1397
1398         /* print out some more info for some errors: */
1399         if (d->aborting_due_to_unparseable) {
1400                 flac__utils_printf(stderr, 1,
1401                         "\n"
1402                         "The FLAC stream may have been created by a more advanced encoder.  Try\n"
1403                         "  metaflac --show-vendor-tag %s\n"
1404                         "If the version number is greater than %s, this decoder is probably\n"
1405                         "not able to decode the file.  If the version number is not, the file\n"
1406                         "may be corrupted, or you may have found a bug.  In this case please\n"
1407                         "submit a bug report to\n"
1408                         "    http://sourceforge.net/bugs/?func=addbug&group_id=13478\n"
1409                         "Make sure to use the \"Monitor\" feature to monitor the bug status.\n",
1410                         d->inbasefilename, FLAC__VERSION_STRING
1411                 );
1412         }
1413 }
1414
1415 void print_stats(const DecoderSession *decoder_session)
1416 {
1417         static int count = 0;
1418         if(flac__utils_verbosity_ >= 2) {
1419 #if defined _MSC_VER || defined __MINGW32__
1420                 /* with MSVC you have to spoon feed it the casting */
1421                 const double progress = (double)(FLAC__int64)decoder_session->samples_processed / (double)(FLAC__int64)decoder_session->total_samples * 100.0;
1422 #else
1423                 const double progress = (double)decoder_session->samples_processed / (double)decoder_session->total_samples * 100.0;
1424 #endif
1425                 if(decoder_session->total_samples > 0) {
1426                         while (count > 0 && count--)
1427                                 fprintf(stderr, "\b");
1428
1429                         if ((unsigned)floor(progress + 0.5) == 100)
1430                                 return;
1431
1432                         count = fprintf(stderr, "%s: %s%u%% complete",
1433                                 decoder_session->inbasefilename,
1434                                 decoder_session->test_only? "testing, " : decoder_session->analysis_mode? "analyzing, " : "",
1435                                 (unsigned)floor(progress + 0.5)
1436                         );
1437                 }
1438                 else {
1439                         fprintf(stderr, "\r%s: %s %u samples",
1440                                 decoder_session->inbasefilename,
1441                                 decoder_session->test_only? "tested" : decoder_session->analysis_mode? "analyzed" : "wrote",
1442                                 (unsigned)decoder_session->samples_processed
1443                         );
1444                 }
1445         }
1446 }