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