src/metaflac/operations.c

   1 /* metaflac - Command-line FLAC metadata editor
   2  * Copyright (C) 2001,2002,2003,2004  Josh Coalson
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  17  */
  18
  19 #include "operations.h"
  20 #include "usage.h"
  21 #include "utils.h"
  22 #include "FLAC/assert.h"
  23 #include "FLAC/metadata.h"
  24 #include "share/grabbag.h"
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28
  29 static void show_version();
  30 static FLAC__bool do_major_operation(const CommandLineOptions *options);
  31 static FLAC__bool do_major_operation_on_file(const char *filename, const CommandLineOptions *options);
  32 static FLAC__bool do_major_operation__list(const char *filename, FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
  33 static FLAC__bool do_major_operation__append(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
  34 static FLAC__bool do_major_operation__remove(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
  35 static FLAC__bool do_major_operation__remove_all(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
  36 static FLAC__bool do_shorthand_operations(const CommandLineOptions *options);
  37 static FLAC__bool do_shorthand_operations_on_file(const char *filename, const CommandLineOptions *options);
  38 static FLAC__bool do_shorthand_operation(const char *filename, FLAC__bool prefix_with_filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write, FLAC__bool utf8_convert);
  39 static FLAC__bool do_shorthand_operation__add_replay_gain(char **filenames, unsigned num_files, FLAC__bool preserve_modtime);
  40 static FLAC__bool do_shorthand_operation__add_padding(const char *filename, FLAC__Metadata_Chain *chain, unsigned length, FLAC__bool *needs_write);
  41
  42 static FLAC__bool passes_filter(const CommandLineOptions *options, const FLAC__StreamMetadata *block, unsigned block_number);
  43 static void write_metadata(const char *filename, FLAC__StreamMetadata *block, unsigned block_number, FLAC__bool raw, FLAC__bool hexdump_application);
  44
  45 /* from operations_shorthand_seektable.c */
  46 extern FLAC__bool do_shorthand_operation__add_seekpoints(const char *filename, FLAC__Metadata_Chain *chain, const char *specification, FLAC__bool *needs_write);
  47
  48 /* from operations_shorthand_streaminfo.c */
  49 extern FLAC__bool do_shorthand_operation__streaminfo(const char *filename, FLAC__bool prefix_with_filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write);
  50
  51 /* from operations_shorthand_vorbiscomment.c */
  52 extern FLAC__bool do_shorthand_operation__vorbis_comment(const char *filename, FLAC__bool prefix_with_filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write, FLAC__bool raw);
  53
  54 /* from operations_shorthand_cuesheet.c */
  55 extern FLAC__bool do_shorthand_operation__cuesheet(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write);
  56
  57
  58 FLAC__bool do_operations(const CommandLineOptions *options)
  59 {
  60         FLAC__bool ok = true;
  61
  62         if(options->show_long_help) {
  63                 long_usage(0);
  64         }
  65         if(options->show_version) {
  66                 show_version();
  67         }
  68         else if(options->args.checks.num_major_ops > 0) {
  69                 FLAC__ASSERT(options->args.checks.num_shorthand_ops == 0);
  70                 FLAC__ASSERT(options->args.checks.num_major_ops == 1);
  71                 FLAC__ASSERT(options->args.checks.num_major_ops == options->ops.num_operations);
  72                 ok = do_major_operation(options);
  73         }
  74         else if(options->args.checks.num_shorthand_ops > 0) {
  75                 FLAC__ASSERT(options->args.checks.num_shorthand_ops == options->ops.num_operations);
  76                 ok = do_shorthand_operations(options);
  77         }
  78
  79         return ok;
  80 }
  81
  82 /*
  83  * local routines
  84  */
  85
  86 void show_version()
  87 {
  88         printf("metaflac %s\n", FLAC__VERSION_STRING);
  89 }
  90
  91 FLAC__bool do_major_operation(const CommandLineOptions *options)
  92 {
  93         unsigned i;
  94         FLAC__bool ok = true;
  95
  96         /*@@@ to die after first error,  v---  add '&& ok' here */
  97         for(i = 0; i < options->num_files; i++)
  98                 ok &= do_major_operation_on_file(options->filenames[i], options);
  99
 100         return ok;
 101 }
 102
 103 FLAC__bool do_major_operation_on_file(const char *filename, const CommandLineOptions *options)
 104 {
 105         FLAC__bool ok = true, needs_write = false;
 106         FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new();
 107
 108         if(0 == chain)
 109                 die("out of memory allocating chain");
 110
 111         if(!FLAC__metadata_chain_read(chain, filename)) {
 112                 fprintf(stderr, "%s: ERROR: reading metadata, status = \"%s\"\n", filename, FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(chain)]);
 113                 return false;
 114         }
 115
 116         switch(options->ops.operations[0].type) {
 117                 case OP__LIST:
 118                         ok = do_major_operation__list(options->prefix_with_filename? filename : 0, chain, options);
 119                         break;
 120                 case OP__APPEND:
 121                         ok = do_major_operation__append(chain, options);
 122                         needs_write = true;
 123                         break;
 124                 case OP__REMOVE:
 125                         ok = do_major_operation__remove(chain, options);
 126                         needs_write = true;
 127                         break;
 128                 case OP__REMOVE_ALL:
 129                         ok = do_major_operation__remove_all(chain, options);
 130                         needs_write = true;
 131                         break;
 132                 case OP__MERGE_PADDING:
 133                         FLAC__metadata_chain_merge_padding(chain);
 134                         needs_write = true;
 135                         break;
 136                 case OP__SORT_PADDING:
 137                         FLAC__metadata_chain_sort_padding(chain);
 138                         needs_write = true;
 139                         break;
 140                 default:
 141                         FLAC__ASSERT(0);
 142                         return false;
 143         }
 144
 145         if(ok && needs_write) {
 146                 if(options->use_padding)
 147                         FLAC__metadata_chain_sort_padding(chain);
 148                 ok = FLAC__metadata_chain_write(chain, options->use_padding, options->preserve_modtime);
 149                 if(!ok)
 150                         fprintf(stderr, "%s: ERROR: writing FLAC file, error = %s\n", filename, FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(chain)]);
 151         }
 152
 153         FLAC__metadata_chain_delete(chain);
 154
 155         return ok;
 156 }
 157
 158 FLAC__bool do_major_operation__list(const char *filename, FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
 159 {
 160         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
 161         FLAC__StreamMetadata *block;
 162         FLAC__bool ok = true;
 163         unsigned block_number;
 164
 165         if(0 == iterator)
 166                 die("out of memory allocating iterator");
 167
 168         FLAC__metadata_iterator_init(iterator, chain);
 169
 170         block_number = 0;
 171         do {
 172                 block = FLAC__metadata_iterator_get_block(iterator);
 173                 ok &= (0 != block);
 174                 if(!ok)
 175                         fprintf(stderr, "%s: ERROR: couldn't get block from chain\n", filename);
 176                 else if(passes_filter(options, FLAC__metadata_iterator_get_block(iterator), block_number))
 177                         write_metadata(filename, block, block_number, !options->utf8_convert, options->application_data_format_is_hexdump);
 178                 block_number++;
 179         } while(ok && FLAC__metadata_iterator_next(iterator));
 180
 181         FLAC__metadata_iterator_delete(iterator);
 182
 183         return ok;
 184 }
 185
 186 FLAC__bool do_major_operation__append(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
 187 {
 188         (void) chain, (void) options;
 189         fprintf(stderr, "ERROR: --append not implemented yet\n"); /*@@@*/
 190         return false;
 191 }
 192
 193 FLAC__bool do_major_operation__remove(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
 194 {
 195         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
 196         FLAC__bool ok = true;
 197         unsigned block_number;
 198
 199         if(0 == iterator)
 200                 die("out of memory allocating iterator");
 201
 202         FLAC__metadata_iterator_init(iterator, chain);
 203
 204         block_number = 0;
 205         while(ok && FLAC__metadata_iterator_next(iterator)) {
 206                 block_number++;
 207                 if(passes_filter(options, FLAC__metadata_iterator_get_block(iterator), block_number)) {
 208                         ok &= FLAC__metadata_iterator_delete_block(iterator, options->use_padding);
 209                         if(options->use_padding)
 210                                 ok &= FLAC__metadata_iterator_next(iterator);
 211                 }
 212         }
 213
 214         FLAC__metadata_iterator_delete(iterator);
 215
 216         return ok;
 217 }
 218
 219 FLAC__bool do_major_operation__remove_all(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
 220 {
 221         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
 222         FLAC__bool ok = true;
 223
 224         if(0 == iterator)
 225                 die("out of memory allocating iterator");
 226
 227         FLAC__metadata_iterator_init(iterator, chain);
 228
 229         while(ok && FLAC__metadata_iterator_next(iterator)) {
 230                 ok &= FLAC__metadata_iterator_delete_block(iterator, options->use_padding);
 231                 if(options->use_padding)
 232                         ok &= FLAC__metadata_iterator_next(iterator);
 233         }
 234
 235         FLAC__metadata_iterator_delete(iterator);
 236
 237         return ok;
 238 }
 239
 240 FLAC__bool do_shorthand_operations(const CommandLineOptions *options)
 241 {
 242         unsigned i;
 243         FLAC__bool ok = true;
 244
 245         /* to die after first error,     v---  add '&& ok' here */
 246         for(i = 0; i < options->num_files; i++)
 247                 ok &= do_shorthand_operations_on_file(options->filenames[i], options);
 248
 249         /* check if OP__ADD_REPLAY_GAIN requested */
 250         if(ok && options->num_files > 0) {
 251                 for(i = 0; i < options->ops.num_operations; i++) {
 252                         if(options->ops.operations[i].type == OP__ADD_REPLAY_GAIN)
 253                                 ok = do_shorthand_operation__add_replay_gain(options->filenames, options->num_files, options->preserve_modtime);
 254                 }
 255         }
 256
 257         return ok;
 258 }
 259
 260 FLAC__bool do_shorthand_operations_on_file(const char *filename, const CommandLineOptions *options)
 261 {
 262         unsigned i;
 263         FLAC__bool ok = true, needs_write = false, use_padding = options->use_padding;
 264         FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new();
 265
 266         if(0 == chain)
 267                 die("out of memory allocating chain");
 268
 269         if(!FLAC__metadata_chain_read(chain, filename)) {
 270                 fprintf(stderr, "%s: ERROR: reading metadata, status = \"%s\"\n", filename, FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(chain)]);
 271                 return false;
 272         }
 273
 274         for(i = 0; i < options->ops.num_operations && ok; i++) {
 275                 /*
 276                  * Do OP__ADD_SEEKPOINT last to avoid decoding twice if both
 277                  * --add-seekpoint and --import-cuesheet-from are used.
 278                  */
 279                 if(options->ops.operations[i].type != OP__ADD_SEEKPOINT)
 280                         ok &= do_shorthand_operation(filename, options->prefix_with_filename, chain, &options->ops.operations[i], &needs_write, options->utf8_convert);
 281
 282                 /* The following seems counterintuitive but the meaning
 283                  * of 'use_padding' is 'try to keep the overall metadata
 284                  * to its original size, adding or truncating extra
 285                  * padding if necessary' which is why we need to turn it
 286                  * off in this case.  If we don't, the extra padding block
 287                  * will just be truncated.
 288                  */
 289                 if(options->ops.operations[i].type == OP__ADD_PADDING)
 290                         use_padding = false;
 291         }
 292
 293         /*
 294          * Do OP__ADD_SEEKPOINT last to avoid decoding twice if both
 295          * --add-seekpoint and --import-cuesheet-from are used.
 296          */
 297         for(i = 0; i < options->ops.num_operations && ok; i++) {
 298                 if(options->ops.operations[i].type == OP__ADD_SEEKPOINT)
 299                         ok &= do_shorthand_operation(filename, options->prefix_with_filename, chain, &options->ops.operations[i], &needs_write, options->utf8_convert);
 300         }
 301
 302         if(ok && needs_write) {
 303                 if(use_padding)
 304                         FLAC__metadata_chain_sort_padding(chain);
 305                 ok = FLAC__metadata_chain_write(chain, use_padding, options->preserve_modtime);
 306                 if(!ok)
 307                         fprintf(stderr, "%s: ERROR: writing FLAC file, error = %s\n", filename, FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(chain)]);
 308         }
 309
 310         FLAC__metadata_chain_delete(chain);
 311
 312         return ok;
 313 }
 314
 315 FLAC__bool do_shorthand_operation(const char *filename, FLAC__bool prefix_with_filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write, FLAC__bool utf8_convert)
 316 {
 317         FLAC__bool ok = true;
 318
 319         switch(operation->type) {
 320                 case OP__SHOW_MD5SUM:
 321                 case OP__SHOW_MIN_BLOCKSIZE:
 322                 case OP__SHOW_MAX_BLOCKSIZE:
 323                 case OP__SHOW_MIN_FRAMESIZE:
 324                 case OP__SHOW_MAX_FRAMESIZE:
 325                 case OP__SHOW_SAMPLE_RATE:
 326                 case OP__SHOW_CHANNELS:
 327                 case OP__SHOW_BPS:
 328                 case OP__SHOW_TOTAL_SAMPLES:
 329                 case OP__SET_MD5SUM:
 330                 case OP__SET_MIN_BLOCKSIZE:
 331                 case OP__SET_MAX_BLOCKSIZE:
 332                 case OP__SET_MIN_FRAMESIZE:
 333                 case OP__SET_MAX_FRAMESIZE:
 334                 case OP__SET_SAMPLE_RATE:
 335                 case OP__SET_CHANNELS:
 336                 case OP__SET_BPS:
 337                 case OP__SET_TOTAL_SAMPLES:
 338                         ok = do_shorthand_operation__streaminfo(filename, prefix_with_filename, chain, operation, needs_write);
 339                         break;
 340                 case OP__SHOW_VC_VENDOR:
 341                 case OP__SHOW_VC_FIELD:
 342                 case OP__REMOVE_VC_ALL:
 343                 case OP__REMOVE_VC_FIELD:
 344                 case OP__REMOVE_VC_FIRSTFIELD:
 345                 case OP__SET_VC_FIELD:
 346                 case OP__IMPORT_VC_FROM:
 347                 case OP__EXPORT_VC_TO:
 348                         ok = do_shorthand_operation__vorbis_comment(filename, prefix_with_filename, chain, operation, needs_write, !utf8_convert);
 349                         break;
 350                 case OP__IMPORT_CUESHEET_FROM:
 351                 case OP__EXPORT_CUESHEET_TO:
 352                         ok = do_shorthand_operation__cuesheet(filename, chain, operation, needs_write);
 353                         break;
 354                 case OP__ADD_SEEKPOINT:
 355                         ok = do_shorthand_operation__add_seekpoints(filename, chain, operation->argument.add_seekpoint.specification, needs_write);
 356                         break;
 357                 case OP__ADD_REPLAY_GAIN:
 358                         /* this command is always executed last */
 359                         ok = true;
 360                         break;
 361                 case OP__ADD_PADDING:
 362                         ok = do_shorthand_operation__add_padding(filename, chain, operation->argument.add_padding.length, needs_write);
 363                         break;
 364                 default:
 365                         ok = false;
 366                         FLAC__ASSERT(0);
 367                         break;
 368         };
 369
 370         return ok;
 371 }
 372
 373 FLAC__bool do_shorthand_operation__add_replay_gain(char **filenames, unsigned num_files, FLAC__bool preserve_modtime)
 374 {
 375         FLAC__StreamMetadata streaminfo;
 376         float *title_gains = 0, *title_peaks = 0;
 377         float album_gain, album_peak;
 378         unsigned sample_rate = 0;
 379         unsigned bits_per_sample = 0;
 380         unsigned channels = 0;
 381         unsigned i;
 382         const char *error;
 383         FLAC__bool first = true;
 384
 385         FLAC__ASSERT(num_files > 0);
 386
 387         for(i = 0; i < num_files; i++) {
 388                 FLAC__ASSERT(0 != filenames[i]);
 389                 if(!FLAC__metadata_get_streaminfo(filenames[i], &streaminfo)) {
 390                         fprintf(stderr, "%s: ERROR: can't open file or get STREAMINFO block\n", filenames[i]);
 391                         return false;
 392                 }
 393                 if(first) {
 394                         first = false;
 395                         sample_rate = streaminfo.data.stream_info.sample_rate;
 396                         bits_per_sample = streaminfo.data.stream_info.bits_per_sample;
 397                         channels = streaminfo.data.stream_info.channels;
 398                 }
 399                 else {
 400                         if(sample_rate != streaminfo.data.stream_info.sample_rate) {
 401                                 fprintf(stderr, "%s: ERROR: sample rate of %u Hz does not match previous files' %u Hz\n", filenames[i], streaminfo.data.stream_info.sample_rate, sample_rate);
 402                                 return false;
 403                         }
 404                         if(bits_per_sample != streaminfo.data.stream_info.bits_per_sample) {
 405                                 fprintf(stderr, "%s: ERROR: resolution of %u bps does not match previous files' %u bps\n", filenames[i], streaminfo.data.stream_info.bits_per_sample, bits_per_sample);
 406                                 return false;
 407                         }
 408                         if(channels != streaminfo.data.stream_info.channels) {
 409                                 fprintf(stderr, "%s: ERROR: # channels (%u) does not match previous files' (%u)\n", filenames[i], streaminfo.data.stream_info.channels, channels);
 410                                 return false;
 411                         }
 412                 }
 413                 if(!grabbag__replaygain_is_valid_sample_frequency(sample_rate)) {
 414                         fprintf(stderr, "%s: ERROR: sample rate of %u Hz is not supported\n", filenames[i], sample_rate);
 415                         return false;
 416                 }
 417                 if(channels != 1 && channels != 2) {
 418                         fprintf(stderr, "%s: ERROR: # of channels (%u) is not supported, must be 1 or 2\n", filenames[i], channels);
 419                         return false;
 420                 }
 421         }
 422         FLAC__ASSERT(bits_per_sample >= FLAC__MIN_BITS_PER_SAMPLE && bits_per_sample <= FLAC__MAX_BITS_PER_SAMPLE);
 423
 424         if(!grabbag__replaygain_init(sample_rate)) {
 425                 FLAC__ASSERT(0);
 426                 /* double protection */
 427                 fprintf(stderr, "internal error\n");
 428                 return false;
 429         }
 430
 431         if(
 432                 0 == (title_gains = (float*)malloc(sizeof(float) * num_files)) ||
 433                 0 == (title_peaks = (float*)malloc(sizeof(float) * num_files))
 434         )
 435                 die("out of memory allocating space for title gains/peaks");
 436
 437         for(i = 0; i < num_files; i++) {
 438                 if(0 != (error = grabbag__replaygain_analyze_file(filenames[i], title_gains+i, title_peaks+i))) {
 439                         fprintf(stderr, "%s: ERROR: during analysis (%s)\n", filenames[i], error);
 440                         free(title_gains);
 441                         free(title_peaks);
 442                         return false;
 443                 }
 444         }
 445         grabbag__replaygain_get_album(&album_gain, &album_peak);
 446
 447         for(i = 0; i < num_files; i++) {
 448                 if(0 != (error = grabbag__replaygain_store_to_file(filenames[i], album_gain, album_peak, title_gains[i], title_peaks[i], preserve_modtime))) {
 449                         fprintf(stderr, "%s: ERROR: writing tags (%s)\n", filenames[i], error);
 450                         free(title_gains);
 451                         free(title_peaks);
 452                         return false;
 453                 }
 454         }
 455
 456         free(title_gains);
 457         free(title_peaks);
 458         return true;
 459 }
 460
 461 FLAC__bool do_shorthand_operation__add_padding(const char *filename, FLAC__Metadata_Chain *chain, unsigned length, FLAC__bool *needs_write)
 462 {
 463         FLAC__StreamMetadata *padding = 0;
 464         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
 465
 466         if(0 == iterator)
 467                 die("out of memory allocating iterator");
 468
 469         FLAC__metadata_iterator_init(iterator, chain);
 470
 471         while(FLAC__metadata_iterator_next(iterator))
 472                 ;
 473
 474         padding = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING);
 475         if(0 == padding)
 476                 die("out of memory allocating PADDING block");
 477
 478         padding->length = length;
 479
 480         if(!FLAC__metadata_iterator_insert_block_after(iterator, padding)) {
 481                 fprintf(stderr, "%s: ERROR: adding new PADDING block to metadata, status =\"%s\"\n", filename, FLAC__Metadata_ChainStatusString[FLAC__metadata_chain_status(chain)]);
 482                 FLAC__metadata_object_delete(padding);
 483                 FLAC__metadata_iterator_delete(iterator);
 484                 return false;
 485         }
 486
 487         FLAC__metadata_iterator_delete(iterator);
 488         *needs_write = true;
 489         return true;
 490 }
 491
 492 FLAC__bool passes_filter(const CommandLineOptions *options, const FLAC__StreamMetadata *block, unsigned block_number)
 493 {
 494         unsigned i, j;
 495         FLAC__bool matches_number = false, matches_type = false;
 496         FLAC__bool has_block_number_arg = false;
 497
 498         for(i = 0; i < options->args.num_arguments; i++) {
 499                 if(options->args.arguments[i].type == ARG__BLOCK_TYPE || options->args.arguments[i].type == ARG__EXCEPT_BLOCK_TYPE) {
 500                         for(j = 0; j < options->args.arguments[i].value.block_type.num_entries; j++) {
 501                                 if(options->args.arguments[i].value.block_type.entries[j].type == block->type) {
 502                                         if(block->type != FLAC__METADATA_TYPE_APPLICATION || !options->args.arguments[i].value.block_type.entries[j].filter_application_by_id || 0 == memcmp(options->args.arguments[i].value.block_type.entries[j].application_id, block->data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8))
 503                                                 matches_type = true;
 504                                 }
 505                         }
 506                 }
 507                 else if(options->args.arguments[i].type == ARG__BLOCK_NUMBER) {
 508                         has_block_number_arg = true;
 509                         for(j = 0; j < options->args.arguments[i].value.block_number.num_entries; j++) {
 510                                 if(options->args.arguments[i].value.block_number.entries[j] == block_number)
 511                                         matches_number = true;
 512                         }
 513                 }
 514         }
 515
 516         if(!has_block_number_arg)
 517                 matches_number = true;
 518
 519         if(options->args.checks.has_block_type) {
 520                 FLAC__ASSERT(!options->args.checks.has_except_block_type);
 521         }
 522         else if(options->args.checks.has_except_block_type)
 523                 matches_type = !matches_type;
 524         else
 525                 matches_type = true;
 526
 527         return matches_number && matches_type;
 528 }
 529
 530 void write_metadata(const char *filename, FLAC__StreamMetadata *block, unsigned block_number, FLAC__bool raw, FLAC__bool hexdump_application)
 531 {
 532         unsigned i, j;
 533
 534 /*@@@ yuck, should do this with a varargs function or something: */
 535 #define PPR if(filename)printf("%s:",filename);
 536         PPR; printf("METADATA block #%u\n", block_number);
 537         PPR; printf("  type: %u (%s)\n", (unsigned)block->type, block->type < FLAC__METADATA_TYPE_UNDEFINED? FLAC__MetadataTypeString[block->type] : "UNKNOWN");
 538         PPR; printf("  is last: %s\n", block->is_last? "true":"false");
 539         PPR; printf("  length: %u\n", block->length);
 540
 541         switch(block->type) {
 542                 case FLAC__METADATA_TYPE_STREAMINFO:
 543                         PPR; printf("  minumum blocksize: %u samples\n", block->data.stream_info.min_blocksize);
 544                         PPR; printf("  maximum blocksize: %u samples\n", block->data.stream_info.max_blocksize);
 545                         PPR; printf("  minimum framesize: %u bytes\n", block->data.stream_info.min_framesize);
 546                         PPR; printf("  maximum framesize: %u bytes\n", block->data.stream_info.max_framesize);
 547                         PPR; printf("  sample_rate: %u Hz\n", block->data.stream_info.sample_rate);
 548                         PPR; printf("  channels: %u\n", block->data.stream_info.channels);
 549                         PPR; printf("  bits-per-sample: %u\n", block->data.stream_info.bits_per_sample);
 550                         PPR; printf("  total samples: %llu\n", block->data.stream_info.total_samples);
 551                         PPR; printf("  MD5 signature: ");
 552                         for(i = 0; i < 16; i++) {
 553                                 printf("%02x", (unsigned)block->data.stream_info.md5sum[i]);
 554                         }
 555                         printf("\n");
 556                         break;
 557                 case FLAC__METADATA_TYPE_PADDING:
 558                         /* nothing to print */
 559                         break;
 560                 case FLAC__METADATA_TYPE_APPLICATION:
 561                         PPR; printf("  application ID: ");
 562                         for(i = 0; i < 4; i++)
 563                                 printf("%02x", block->data.application.id[i]);
 564                         printf("\n");
 565                         PPR; printf("  data contents:\n");
 566                         if(0 != block->data.application.data) {
 567                                 if(hexdump_application)
 568                                         hexdump(filename, block->data.application.data, block->length - FLAC__STREAM_METADATA_HEADER_LENGTH, "    ");
 569                                 else
 570                                         (void) local_fwrite(block->data.application.data, 1, block->length - FLAC__STREAM_METADATA_HEADER_LENGTH, stdout);
 571                         }
 572                         break;
 573                 case FLAC__METADATA_TYPE_SEEKTABLE:
 574                         PPR; printf("  seek points: %u\n", block->data.seek_table.num_points);
 575                         for(i = 0; i < block->data.seek_table.num_points; i++) {
 576                                 if(block->data.seek_table.points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER) {
 577                                         PPR; printf("    point %d: sample_number=%llu, stream_offset=%llu, frame_samples=%u\n", i, block->data.seek_table.points[i].sample_number, block->data.seek_table.points[i].stream_offset, block->data.seek_table.points[i].frame_samples);
 578                                 }
 579                                 else {
 580                                         PPR; printf("    point %d: PLACEHOLDER\n", i);
 581                                 }
 582                         }
 583                         break;
 584                 case FLAC__METADATA_TYPE_VORBIS_COMMENT:
 585                         PPR; printf("  vendor string: ");
 586                         write_vc_field(0, &block->data.vorbis_comment.vendor_string, raw, stdout);
 587                         PPR; printf("  comments: %u\n", block->data.vorbis_comment.num_comments);
 588                         for(i = 0; i < block->data.vorbis_comment.num_comments; i++) {
 589                                 PPR; printf("    comment[%u]: ", i);
 590                                 write_vc_field(0, &block->data.vorbis_comment.comments[i], raw, stdout);
 591                         }
 592                         break;
 593                 case FLAC__METADATA_TYPE_CUESHEET:
 594                         PPR; printf("  media catalog number: %s\n", block->data.cue_sheet.media_catalog_number);
 595                         PPR; printf("  lead-in: %llu\n", block->data.cue_sheet.lead_in);
 596                         PPR; printf("  is CD: %s\n", block->data.cue_sheet.is_cd? "true":"false");
 597                         PPR; printf("  number of tracks: %u\n", block->data.cue_sheet.num_tracks);
 598                         for(i = 0; i < block->data.cue_sheet.num_tracks; i++) {
 599                                 const FLAC__StreamMetadata_CueSheet_Track *track = block->data.cue_sheet.tracks+i;
 600                                 const FLAC__bool is_last = (i == block->data.cue_sheet.num_tracks-1);
 601                                 const FLAC__bool is_leadout = is_last && track->num_indices == 0;
 602                                 PPR; printf("    track[%u]\n", i);
 603                                 PPR; printf("      offset: %llu\n", track->offset);
 604                                 if(is_last) {
 605                                         PPR; printf("      number: %u (%s)\n", (unsigned)track->number, is_leadout? "LEAD-OUT" : "INVALID");
 606                                 }
 607                                 else {
 608                                         PPR; printf("      number: %u\n", (unsigned)track->number);
 609                                 }
 610                                 if(!is_leadout) {
 611                                         PPR; printf("      ISRC: %s\n", track->isrc);
 612                                         PPR; printf("      type: %s\n", track->type == 1? "DATA" : "AUDIO");
 613                                         PPR; printf("      pre-emphasis: %s\n", track->pre_emphasis? "true":"false");
 614                                         PPR; printf("      number of index points: %u\n", track->num_indices);
 615                                         for(j = 0; j < track->num_indices; j++) {
 616                                                 const FLAC__StreamMetadata_CueSheet_Index *index = track->indices+j;
 617                                                 PPR; printf("        index[%u]\n", j);
 618                                                 PPR; printf("          offset: %llu\n", index->offset);
 619                                                 PPR; printf("          number: %u\n", (unsigned)index->number);
 620                                         }
 621                                 }
 622                         }
 623                         break;
 624                 default:
 625                         PPR; printf("  data contents:\n");
 626                         if(0 != block->data.unknown.data)
 627                                 hexdump(filename, block->data.unknown.data, block->length, "    ");
 628                         break;
 629         }
 630 #undef PPR
 631 }