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