src/metaflac/operations.c

   1 /* metaflac - Command-line FLAC metadata editor
   2  * Copyright (C) 2001,2002,2003,2004,2005,2006  Josh Coalson
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  17  */
  18
  19 #if HAVE_CONFIG_H
  20 #  include <config.h>
  21 #endif
  22
  23 #include "operations.h"
  24 #include "usage.h"
  25 #include "utils.h"
  26 #include "FLAC/assert.h"
  27 #include "FLAC/metadata.h"
  28 #include "share/grabbag.h"
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32
  33 static void show_version(void);
  34 static FLAC__bool do_major_operation(const CommandLineOptions *options);
  35 static FLAC__bool do_major_operation_on_file(const char *filename, const CommandLineOptions *options);
  36 static FLAC__bool do_major_operation__list(const char *filename, FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
  37 static FLAC__bool do_major_operation__append(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
  38 static FLAC__bool do_major_operation__remove(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
  39 static FLAC__bool do_major_operation__remove_all(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
  40 static FLAC__bool do_shorthand_operations(const CommandLineOptions *options);
  41 static FLAC__bool do_shorthand_operations_on_file(const char *filename, const CommandLineOptions *options);
  42 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);
  43 static FLAC__bool do_shorthand_operation__add_replay_gain(char **filenames, unsigned num_files, FLAC__bool preserve_modtime);
  44 static FLAC__bool do_shorthand_operation__add_padding(const char *filename, FLAC__Metadata_Chain *chain, unsigned length, FLAC__bool *needs_write);
  45
  46 static FLAC__bool passes_filter(const CommandLineOptions *options, const FLAC__StreamMetadata *block, unsigned block_number);
  47 static void write_metadata(const char *filename, FLAC__StreamMetadata *block, unsigned block_number, FLAC__bool raw, FLAC__bool hexdump_application);
  48
  49 /* from operations_shorthand_seektable.c */
  50 extern FLAC__bool do_shorthand_operation__add_seekpoints(const char *filename, FLAC__Metadata_Chain *chain, const char *specification, FLAC__bool *needs_write);
  51
  52 /* from operations_shorthand_streaminfo.c */
  53 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);
  54
  55 /* from operations_shorthand_vorbiscomment.c */
  56 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);
  57
  58 /* from operations_shorthand_cuesheet.c */
  59 extern FLAC__bool do_shorthand_operation__cuesheet(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write);
  60
  61 /* from operations_shorthand_picture.c */
  62 extern FLAC__bool do_shorthand_operation__picture(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write);
  63
  64
  65 FLAC__bool do_operations(const CommandLineOptions *options)
  66 {
  67         FLAC__bool ok = true;
  68
  69         if(options->show_long_help) {
  70                 long_usage(0);
  71         }
  72         if(options->show_version) {
  73                 show_version();
  74         }
  75         else if(options->args.checks.num_major_ops > 0) {
  76                 FLAC__ASSERT(options->args.checks.num_shorthand_ops == 0);
  77                 FLAC__ASSERT(options->args.checks.num_major_ops == 1);
  78                 FLAC__ASSERT(options->args.checks.num_major_ops == options->ops.num_operations);
  79                 ok = do_major_operation(options);
  80         }
  81         else if(options->args.checks.num_shorthand_ops > 0) {
  82                 FLAC__ASSERT(options->args.checks.num_shorthand_ops == options->ops.num_operations);
  83                 ok = do_shorthand_operations(options);
  84         }
  85
  86         return ok;
  87 }
  88
  89 /*
  90  * local routines
  91  */
  92
  93 void show_version(void)
  94 {
  95         printf("metaflac %s\n", FLAC__VERSION_STRING);
  96 }
  97
  98 FLAC__bool do_major_operation(const CommandLineOptions *options)
  99 {
 100         unsigned i;
 101         FLAC__bool ok = true;
 102
 103         /* to die after first error,     v---  add '&& ok' here */
 104         for(i = 0; i < options->num_files; i++)
 105                 ok &= do_major_operation_on_file(options->filenames[i], options);
 106
 107         return ok;
 108 }
 109
 110 FLAC__bool do_major_operation_on_file(const char *filename, const CommandLineOptions *options)
 111 {
 112         FLAC__bool ok = true, needs_write = false, is_ogg = false;
 113         FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new();
 114
 115         if(0 == chain)
 116                 die("out of memory allocating chain");
 117
 118         /*@@@@ lame way of guessing the file type */
 119         if(strlen(filename) >= 4 && 0 == strcmp(filename+strlen(filename)-4, ".ogg"))
 120                 is_ogg = true;
 121
 122         if(! (is_ogg? FLAC__metadata_chain_read_ogg(chain, filename) : FLAC__metadata_chain_read(chain, filename)) ) {
 123                 print_error_with_chain_status(chain, "%s: ERROR: reading metadata", filename);
 124                 FLAC__metadata_chain_delete(chain);
 125                 return false;
 126         }
 127
 128         switch(options->ops.operations[0].type) {
 129                 case OP__LIST:
 130                         ok = do_major_operation__list(options->prefix_with_filename? filename : 0, chain, options);
 131                         break;
 132                 case OP__APPEND:
 133                         ok = do_major_operation__append(chain, options);
 134                         needs_write = true;
 135                         break;
 136                 case OP__REMOVE:
 137                         ok = do_major_operation__remove(chain, options);
 138                         needs_write = true;
 139                         break;
 140                 case OP__REMOVE_ALL:
 141                         ok = do_major_operation__remove_all(chain, options);
 142                         needs_write = true;
 143                         break;
 144                 case OP__MERGE_PADDING:
 145                         FLAC__metadata_chain_merge_padding(chain);
 146                         needs_write = true;
 147                         break;
 148                 case OP__SORT_PADDING:
 149                         FLAC__metadata_chain_sort_padding(chain);
 150                         needs_write = true;
 151                         break;
 152                 default:
 153                         FLAC__ASSERT(0);
 154                         return false;
 155         }
 156
 157         if(ok && needs_write) {
 158                 if(options->use_padding)
 159                         FLAC__metadata_chain_sort_padding(chain);
 160                 ok = FLAC__metadata_chain_write(chain, options->use_padding, options->preserve_modtime);
 161                 if(!ok)
 162                         print_error_with_chain_status(chain, "%s: ERROR: writing FLAC file", filename);
 163         }
 164
 165         FLAC__metadata_chain_delete(chain);
 166
 167         return ok;
 168 }
 169
 170 FLAC__bool do_major_operation__list(const char *filename, FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
 171 {
 172         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
 173         FLAC__StreamMetadata *block;
 174         FLAC__bool ok = true;
 175         unsigned block_number;
 176
 177         if(0 == iterator)
 178                 die("out of memory allocating iterator");
 179
 180         FLAC__metadata_iterator_init(iterator, chain);
 181
 182         block_number = 0;
 183         do {
 184                 block = FLAC__metadata_iterator_get_block(iterator);
 185                 ok &= (0 != block);
 186                 if(!ok)
 187                         fprintf(stderr, "%s: ERROR: couldn't get block from chain\n", filename);
 188                 else if(passes_filter(options, FLAC__metadata_iterator_get_block(iterator), block_number))
 189                         write_metadata(filename, block, block_number, !options->utf8_convert, options->application_data_format_is_hexdump);
 190                 block_number++;
 191         } while(ok && FLAC__metadata_iterator_next(iterator));
 192
 193         FLAC__metadata_iterator_delete(iterator);
 194
 195         return ok;
 196 }
 197
 198 FLAC__bool do_major_operation__append(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
 199 {
 200         (void) chain, (void) options;
 201         fprintf(stderr, "ERROR: --append not implemented yet\n");
 202         return false;
 203 }
 204
 205 FLAC__bool do_major_operation__remove(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
 206 {
 207         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
 208         FLAC__bool ok = true;
 209         unsigned block_number;
 210
 211         if(0 == iterator)
 212                 die("out of memory allocating iterator");
 213
 214         FLAC__metadata_iterator_init(iterator, chain);
 215
 216         block_number = 0;
 217         while(ok && FLAC__metadata_iterator_next(iterator)) {
 218                 block_number++;
 219                 if(passes_filter(options, FLAC__metadata_iterator_get_block(iterator), block_number)) {
 220                         ok &= FLAC__metadata_iterator_delete_block(iterator, options->use_padding);
 221                         if(options->use_padding)
 222                                 ok &= FLAC__metadata_iterator_next(iterator);
 223                 }
 224         }
 225
 226         FLAC__metadata_iterator_delete(iterator);
 227
 228         return ok;
 229 }
 230
 231 FLAC__bool do_major_operation__remove_all(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
 232 {
 233         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
 234         FLAC__bool ok = true;
 235
 236         if(0 == iterator)
 237                 die("out of memory allocating iterator");
 238
 239         FLAC__metadata_iterator_init(iterator, chain);
 240
 241         while(ok && FLAC__metadata_iterator_next(iterator)) {
 242                 ok &= FLAC__metadata_iterator_delete_block(iterator, options->use_padding);
 243                 if(options->use_padding)
 244                         ok &= FLAC__metadata_iterator_next(iterator);
 245         }
 246
 247         FLAC__metadata_iterator_delete(iterator);
 248
 249         return ok;
 250 }
 251
 252 FLAC__bool do_shorthand_operations(const CommandLineOptions *options)
 253 {
 254         unsigned i;
 255         FLAC__bool ok = true;
 256
 257         /* to die after first error,     v---  add '&& ok' here */
 258         for(i = 0; i < options->num_files; i++)
 259                 ok &= do_shorthand_operations_on_file(options->filenames[i], options);
 260
 261         /* check if OP__ADD_REPLAY_GAIN requested */
 262         if(ok && options->num_files > 0) {
 263                 for(i = 0; i < options->ops.num_operations; i++) {
 264                         if(options->ops.operations[i].type == OP__ADD_REPLAY_GAIN)
 265                                 ok = do_shorthand_operation__add_replay_gain(options->filenames, options->num_files, options->preserve_modtime);
 266                 }
 267         }
 268
 269         return ok;
 270 }
 271
 272 FLAC__bool do_shorthand_operations_on_file(const char *filename, const CommandLineOptions *options)
 273 {
 274         unsigned i;
 275         FLAC__bool ok = true, needs_write = false, use_padding = options->use_padding;
 276         FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new();
 277
 278         if(0 == chain)
 279                 die("out of memory allocating chain");
 280
 281         if(!FLAC__metadata_chain_read(chain, filename)) {
 282                 print_error_with_chain_status(chain, "%s: ERROR: reading metadata", filename);
 283                 return false;
 284         }
 285
 286         for(i = 0; i < options->ops.num_operations && ok; i++) {
 287                 /*
 288                  * Do OP__ADD_SEEKPOINT last to avoid decoding twice if both
 289                  * --add-seekpoint and --import-cuesheet-from are used.
 290                  */
 291                 if(options->ops.operations[i].type != OP__ADD_SEEKPOINT)
 292                         ok &= do_shorthand_operation(filename, options->prefix_with_filename, chain, &options->ops.operations[i], &needs_write, options->utf8_convert);
 293
 294                 /* The following seems counterintuitive but the meaning
 295                  * of 'use_padding' is 'try to keep the overall metadata
 296                  * to its original size, adding or truncating extra
 297                  * padding if necessary' which is why we need to turn it
 298                  * off in this case.  If we don't, the extra padding block
 299                  * will just be truncated.
 300                  */
 301                 if(options->ops.operations[i].type == OP__ADD_PADDING)
 302                         use_padding = false;
 303         }
 304
 305         /*
 306          * Do OP__ADD_SEEKPOINT last to avoid decoding twice if both
 307          * --add-seekpoint and --import-cuesheet-from are used.
 308          */
 309         for(i = 0; i < options->ops.num_operations && ok; i++) {
 310                 if(options->ops.operations[i].type == OP__ADD_SEEKPOINT)
 311                         ok &= do_shorthand_operation(filename, options->prefix_with_filename, chain, &options->ops.operations[i], &needs_write, options->utf8_convert);
 312         }
 313
 314         if(ok && needs_write) {
 315                 if(use_padding)
 316                         FLAC__metadata_chain_sort_padding(chain);
 317                 ok = FLAC__metadata_chain_write(chain, use_padding, options->preserve_modtime);
 318                 if(!ok)
 319                         print_error_with_chain_status(chain, "%s: ERROR: writing FLAC file", filename);
 320         }
 321
 322         FLAC__metadata_chain_delete(chain);
 323
 324         return ok;
 325 }
 326
 327 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)
 328 {
 329         FLAC__bool ok = true;
 330
 331         switch(operation->type) {
 332                 case OP__SHOW_MD5SUM:
 333                 case OP__SHOW_MIN_BLOCKSIZE:
 334                 case OP__SHOW_MAX_BLOCKSIZE:
 335                 case OP__SHOW_MIN_FRAMESIZE:
 336                 case OP__SHOW_MAX_FRAMESIZE:
 337                 case OP__SHOW_SAMPLE_RATE:
 338                 case OP__SHOW_CHANNELS:
 339                 case OP__SHOW_BPS:
 340                 case OP__SHOW_TOTAL_SAMPLES:
 341                 case OP__SET_MD5SUM:
 342                 case OP__SET_MIN_BLOCKSIZE:
 343                 case OP__SET_MAX_BLOCKSIZE:
 344                 case OP__SET_MIN_FRAMESIZE:
 345                 case OP__SET_MAX_FRAMESIZE:
 346                 case OP__SET_SAMPLE_RATE:
 347                 case OP__SET_CHANNELS:
 348                 case OP__SET_BPS:
 349                 case OP__SET_TOTAL_SAMPLES:
 350                         ok = do_shorthand_operation__streaminfo(filename, prefix_with_filename, chain, operation, needs_write);
 351                         break;
 352                 case OP__SHOW_VC_VENDOR:
 353                 case OP__SHOW_VC_FIELD:
 354                 case OP__REMOVE_VC_ALL:
 355                 case OP__REMOVE_VC_FIELD:
 356                 case OP__REMOVE_VC_FIRSTFIELD:
 357                 case OP__SET_VC_FIELD:
 358                 case OP__IMPORT_VC_FROM:
 359                 case OP__EXPORT_VC_TO:
 360                         ok = do_shorthand_operation__vorbis_comment(filename, prefix_with_filename, chain, operation, needs_write, !utf8_convert);
 361                         break;
 362                 case OP__IMPORT_CUESHEET_FROM:
 363                 case OP__EXPORT_CUESHEET_TO:
 364                         ok = do_shorthand_operation__cuesheet(filename, chain, operation, needs_write);
 365                         break;
 366                 case OP__IMPORT_PICTURE_FROM:
 367                 case OP__EXPORT_PICTURE_TO:
 368                         ok = do_shorthand_operation__picture(filename, chain, operation, needs_write);
 369                         break;
 370                 case OP__ADD_SEEKPOINT:
 371                         ok = do_shorthand_operation__add_seekpoints(filename, chain, operation->argument.add_seekpoint.specification, needs_write);
 372                         break;
 373                 case OP__ADD_REPLAY_GAIN:
 374                         /* this command is always executed last */
 375                         ok = true;
 376                         break;
 377                 case OP__ADD_PADDING:
 378                         ok = do_shorthand_operation__add_padding(filename, chain, operation->argument.add_padding.length, needs_write);
 379                         break;
 380                 default:
 381                         ok = false;
 382                         FLAC__ASSERT(0);
 383                         break;
 384         };
 385
 386         return ok;
 387 }
 388
 389 FLAC__bool do_shorthand_operation__add_replay_gain(char **filenames, unsigned num_files, FLAC__bool preserve_modtime)
 390 {
 391         FLAC__StreamMetadata streaminfo;
 392         float *title_gains = 0, *title_peaks = 0;
 393         float album_gain, album_peak;
 394         unsigned sample_rate = 0;
 395         unsigned bits_per_sample = 0;
 396         unsigned channels = 0;
 397         unsigned i;
 398         const char *error;
 399         FLAC__bool first = true;
 400
 401         FLAC__ASSERT(num_files > 0);
 402
 403         for(i = 0; i < num_files; i++) {
 404                 FLAC__ASSERT(0 != filenames[i]);
 405                 if(!FLAC__metadata_get_streaminfo(filenames[i], &streaminfo)) {
 406                         fprintf(stderr, "%s: ERROR: can't open file or get STREAMINFO block\n", filenames[i]);
 407                         return false;
 408                 }
 409                 if(first) {
 410                         first = false;
 411                         sample_rate = streaminfo.data.stream_info.sample_rate;
 412                         bits_per_sample = streaminfo.data.stream_info.bits_per_sample;
 413                         channels = streaminfo.data.stream_info.channels;
 414                 }
 415                 else {
 416                         if(sample_rate != streaminfo.data.stream_info.sample_rate) {
 417                                 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);
 418                                 return false;
 419                         }
 420                         if(bits_per_sample != streaminfo.data.stream_info.bits_per_sample) {
 421                                 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);
 422                                 return false;
 423                         }
 424                         if(channels != streaminfo.data.stream_info.channels) {
 425                                 fprintf(stderr, "%s: ERROR: # channels (%u) does not match previous files' (%u)\n", filenames[i], streaminfo.data.stream_info.channels, channels);
 426                                 return false;
 427                         }
 428                 }
 429                 if(!grabbag__replaygain_is_valid_sample_frequency(sample_rate)) {
 430                         fprintf(stderr, "%s: ERROR: sample rate of %u Hz is not supported\n", filenames[i], sample_rate);
 431                         return false;
 432                 }
 433                 if(channels != 1 && channels != 2) {
 434                         fprintf(stderr, "%s: ERROR: # of channels (%u) is not supported, must be 1 or 2\n", filenames[i], channels);
 435                         return false;
 436                 }
 437         }
 438         FLAC__ASSERT(bits_per_sample >= FLAC__MIN_BITS_PER_SAMPLE && bits_per_sample <= FLAC__MAX_BITS_PER_SAMPLE);
 439
 440         if(!grabbag__replaygain_init(sample_rate)) {
 441                 FLAC__ASSERT(0);
 442                 /* double protection */
 443                 fprintf(stderr, "internal error\n");
 444                 return false;
 445         }
 446
 447         if(
 448                 0 == (title_gains = (float*)malloc(sizeof(float) * num_files)) ||
 449                 0 == (title_peaks = (float*)malloc(sizeof(float) * num_files))
 450         )
 451                 die("out of memory allocating space for title gains/peaks");
 452
 453         for(i = 0; i < num_files; i++) {
 454                 if(0 != (error = grabbag__replaygain_analyze_file(filenames[i], title_gains+i, title_peaks+i))) {
 455                         fprintf(stderr, "%s: ERROR: during analysis (%s)\n", filenames[i], error);
 456                         free(title_gains);
 457                         free(title_peaks);
 458                         return false;
 459                 }
 460         }
 461         grabbag__replaygain_get_album(&album_gain, &album_peak);
 462
 463         for(i = 0; i < num_files; i++) {
 464                 if(0 != (error = grabbag__replaygain_store_to_file(filenames[i], album_gain, album_peak, title_gains[i], title_peaks[i], preserve_modtime))) {
 465                         fprintf(stderr, "%s: ERROR: writing tags (%s)\n", filenames[i], error);
 466                         free(title_gains);
 467                         free(title_peaks);
 468                         return false;
 469                 }
 470         }
 471
 472         free(title_gains);
 473         free(title_peaks);
 474         return true;
 475 }
 476
 477 FLAC__bool do_shorthand_operation__add_padding(const char *filename, FLAC__Metadata_Chain *chain, unsigned length, FLAC__bool *needs_write)
 478 {
 479         FLAC__StreamMetadata *padding = 0;
 480         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
 481
 482         if(0 == iterator)
 483                 die("out of memory allocating iterator");
 484
 485         FLAC__metadata_iterator_init(iterator, chain);
 486
 487         while(FLAC__metadata_iterator_next(iterator))
 488                 ;
 489
 490         padding = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING);
 491         if(0 == padding)
 492                 die("out of memory allocating PADDING block");
 493
 494         padding->length = length;
 495
 496         if(!FLAC__metadata_iterator_insert_block_after(iterator, padding)) {
 497                 print_error_with_chain_status(chain, "%s: ERROR: adding new PADDING block to metadata", filename);
 498                 FLAC__metadata_object_delete(padding);
 499                 FLAC__metadata_iterator_delete(iterator);
 500                 return false;
 501         }
 502
 503         FLAC__metadata_iterator_delete(iterator);
 504         *needs_write = true;
 505         return true;
 506 }
 507
 508 FLAC__bool passes_filter(const CommandLineOptions *options, const FLAC__StreamMetadata *block, unsigned block_number)
 509 {
 510         unsigned i, j;
 511         FLAC__bool matches_number = false, matches_type = false;
 512         FLAC__bool has_block_number_arg = false;
 513
 514         for(i = 0; i < options->args.num_arguments; i++) {
 515                 if(options->args.arguments[i].type == ARG__BLOCK_TYPE || options->args.arguments[i].type == ARG__EXCEPT_BLOCK_TYPE) {
 516                         for(j = 0; j < options->args.arguments[i].value.block_type.num_entries; j++) {
 517                                 if(options->args.arguments[i].value.block_type.entries[j].type == block->type) {
 518                                         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))
 519                                                 matches_type = true;
 520                                 }
 521                         }
 522                 }
 523                 else if(options->args.arguments[i].type == ARG__BLOCK_NUMBER) {
 524                         has_block_number_arg = true;
 525                         for(j = 0; j < options->args.arguments[i].value.block_number.num_entries; j++) {
 526                                 if(options->args.arguments[i].value.block_number.entries[j] == block_number)
 527                                         matches_number = true;
 528                         }
 529                 }
 530         }
 531
 532         if(!has_block_number_arg)
 533                 matches_number = true;
 534
 535         if(options->args.checks.has_block_type) {
 536                 FLAC__ASSERT(!options->args.checks.has_except_block_type);
 537         }
 538         else if(options->args.checks.has_except_block_type)
 539                 matches_type = !matches_type;
 540         else
 541                 matches_type = true;
 542
 543         return matches_number && matches_type;
 544 }
 545
 546 void write_metadata(const char *filename, FLAC__StreamMetadata *block, unsigned block_number, FLAC__bool raw, FLAC__bool hexdump_application)
 547 {
 548         unsigned i, j;
 549
 550 /*@@@ yuck, should do this with a varargs function or something: */
 551 #define PPR if(filename)printf("%s:",filename);
 552         PPR; printf("METADATA block #%u\n", block_number);
 553         PPR; printf("  type: %u (%s)\n", (unsigned)block->type, block->type < FLAC__METADATA_TYPE_UNDEFINED? FLAC__MetadataTypeString[block->type] : "UNKNOWN");
 554         PPR; printf("  is last: %s\n", block->is_last? "true":"false");
 555         PPR; printf("  length: %u\n", block->length);
 556
 557         switch(block->type) {
 558                 case FLAC__METADATA_TYPE_STREAMINFO:
 559                         PPR; printf("  minimum blocksize: %u samples\n", block->data.stream_info.min_blocksize);
 560                         PPR; printf("  maximum blocksize: %u samples\n", block->data.stream_info.max_blocksize);
 561                         PPR; printf("  minimum framesize: %u bytes\n", block->data.stream_info.min_framesize);
 562                         PPR; printf("  maximum framesize: %u bytes\n", block->data.stream_info.max_framesize);
 563                         PPR; printf("  sample_rate: %u Hz\n", block->data.stream_info.sample_rate);
 564                         PPR; printf("  channels: %u\n", block->data.stream_info.channels);
 565                         PPR; printf("  bits-per-sample: %u\n", block->data.stream_info.bits_per_sample);
 566 #ifdef _MSC_VER
 567                         PPR; printf("  total samples: %I64u\n", block->data.stream_info.total_samples);
 568 #else
 569                         PPR; printf("  total samples: %llu\n", (unsigned long long)block->data.stream_info.total_samples);
 570 #endif
 571                         PPR; printf("  MD5 signature: ");
 572                         for(i = 0; i < 16; i++) {
 573                                 printf("%02x", (unsigned)block->data.stream_info.md5sum[i]);
 574                         }
 575                         printf("\n");
 576                         break;
 577                 case FLAC__METADATA_TYPE_PADDING:
 578                         /* nothing to print */
 579                         break;
 580                 case FLAC__METADATA_TYPE_APPLICATION:
 581                         PPR; printf("  application ID: ");
 582                         for(i = 0; i < 4; i++)
 583                                 printf("%02x", block->data.application.id[i]);
 584                         printf("\n");
 585                         PPR; printf("  data contents:\n");
 586                         if(0 != block->data.application.data) {
 587                                 if(hexdump_application)
 588                                         hexdump(filename, block->data.application.data, block->length - FLAC__STREAM_METADATA_HEADER_LENGTH, "    ");
 589                                 else
 590                                         (void) local_fwrite(block->data.application.data, 1, block->length - FLAC__STREAM_METADATA_HEADER_LENGTH, stdout);
 591                         }
 592                         break;
 593                 case FLAC__METADATA_TYPE_SEEKTABLE:
 594                         PPR; printf("  seek points: %u\n", block->data.seek_table.num_points);
 595                         for(i = 0; i < block->data.seek_table.num_points; i++) {
 596                                 if(block->data.seek_table.points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER) {
 597 #ifdef _MSC_VER
 598                                         PPR; printf("    point %u: sample_number=%I64u, stream_offset=%I64u, 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);
 599 #else
 600                                         PPR; printf("    point %u: sample_number=%llu, stream_offset=%llu, frame_samples=%u\n", i, (unsigned long long)block->data.seek_table.points[i].sample_number, (unsigned long long)block->data.seek_table.points[i].stream_offset, block->data.seek_table.points[i].frame_samples);
 601 #endif
 602                                 }
 603                                 else {
 604                                         PPR; printf("    point %u: PLACEHOLDER\n", i);
 605                                 }
 606                         }
 607                         break;
 608                 case FLAC__METADATA_TYPE_VORBIS_COMMENT:
 609                         PPR; printf("  vendor string: ");
 610                         write_vc_field(0, &block->data.vorbis_comment.vendor_string, raw, stdout);
 611                         PPR; printf("  comments: %u\n", block->data.vorbis_comment.num_comments);
 612                         for(i = 0; i < block->data.vorbis_comment.num_comments; i++) {
 613                                 PPR; printf("    comment[%u]: ", i);
 614                                 write_vc_field(0, &block->data.vorbis_comment.comments[i], raw, stdout);
 615                         }
 616                         break;
 617                 case FLAC__METADATA_TYPE_CUESHEET:
 618                         PPR; printf("  media catalog number: %s\n", block->data.cue_sheet.media_catalog_number);
 619 #ifdef _MSC_VER
 620                         PPR; printf("  lead-in: %I64u\n", block->data.cue_sheet.lead_in);
 621 #else
 622                         PPR; printf("  lead-in: %llu\n", (unsigned long long)block->data.cue_sheet.lead_in);
 623 #endif
 624                         PPR; printf("  is CD: %s\n", block->data.cue_sheet.is_cd? "true":"false");
 625                         PPR; printf("  number of tracks: %u\n", block->data.cue_sheet.num_tracks);
 626                         for(i = 0; i < block->data.cue_sheet.num_tracks; i++) {
 627                                 const FLAC__StreamMetadata_CueSheet_Track *track = block->data.cue_sheet.tracks+i;
 628                                 const FLAC__bool is_last = (i == block->data.cue_sheet.num_tracks-1);
 629                                 const FLAC__bool is_leadout = is_last && track->num_indices == 0;
 630                                 PPR; printf("    track[%u]\n", i);
 631 #ifdef _MSC_VER
 632                                 PPR; printf("      offset: %I64u\n", track->offset);
 633 #else
 634                                 PPR; printf("      offset: %llu\n", (unsigned long long)track->offset);
 635 #endif
 636                                 if(is_last) {
 637                                         PPR; printf("      number: %u (%s)\n", (unsigned)track->number, is_leadout? "LEAD-OUT" : "INVALID");
 638                                 }
 639                                 else {
 640                                         PPR; printf("      number: %u\n", (unsigned)track->number);
 641                                 }
 642                                 if(!is_leadout) {
 643                                         PPR; printf("      ISRC: %s\n", track->isrc);
 644                                         PPR; printf("      type: %s\n", track->type == 1? "DATA" : "AUDIO");
 645                                         PPR; printf("      pre-emphasis: %s\n", track->pre_emphasis? "true":"false");
 646                                         PPR; printf("      number of index points: %u\n", track->num_indices);
 647                                         for(j = 0; j < track->num_indices; j++) {
 648                                                 const FLAC__StreamMetadata_CueSheet_Index *index = track->indices+j;
 649                                                 PPR; printf("        index[%u]\n", j);
 650 #ifdef _MSC_VER
 651                                                 PPR; printf("          offset: %I64u\n", index->offset);
 652 #else
 653                                                 PPR; printf("          offset: %llu\n", (unsigned long long)index->offset);
 654 #endif
 655                                                 PPR; printf("          number: %u\n", (unsigned)index->number);
 656                                         }
 657                                 }
 658                         }
 659                         break;
 660                 case FLAC__METADATA_TYPE_PICTURE:
 661                         PPR; printf("  type: %u (%s)\n", block->data.picture.type, block->data.picture.type < FLAC__STREAM_METADATA_PICTURE_TYPE_UNDEFINED? FLAC__StreamMetadata_Picture_TypeString[block->data.picture.type] : "UNDEFINED");
 662                         PPR; printf("  MIME type: %s\n", block->data.picture.mime_type);
 663                         PPR; printf("  description: %s\n", block->data.picture.description);
 664                         PPR; printf("  width: %u\n", (unsigned)block->data.picture.width);
 665                         PPR; printf("  height: %u\n", (unsigned)block->data.picture.height);
 666                         PPR; printf("  depth: %u\n", (unsigned)block->data.picture.depth);
 667                         PPR; printf("  colors: %u%s\n", (unsigned)block->data.picture.colors, block->data.picture.colors? "" : " (unindexed)");
 668                         PPR; printf("  data length: %u\n", (unsigned)block->data.picture.data_length);
 669                         PPR; printf("  data:\n");
 670                         if(0 != block->data.picture.data)
 671                                 hexdump(filename, block->data.picture.data, block->data.picture.data_length, "    ");
 672                         break;
 673                 default:
 674                         PPR; printf("  data contents:\n");
 675                         if(0 != block->data.unknown.data)
 676                                 hexdump(filename, block->data.unknown.data, block->length, "    ");
 677                         break;
 678         }
 679 #undef PPR
 680 }