src/metaflac/operations.c

   1 /* metaflac - Command-line FLAC metadata editor
   2  * Copyright (C) 2001-2009  Josh Coalson
   3  * Copyright (C) 2011-2013  Xiph.Org Foundation
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19
  20 #if HAVE_CONFIG_H
  21 #  include <config.h>
  22 #endif
  23
  24 #include "operations.h"
  25 #include "usage.h"
  26 #include "utils.h"
  27 #include "FLAC/assert.h"
  28 #include "FLAC/metadata.h"
  29 #include "share/alloc.h"
  30 #include "share/grabbag.h"
  31 #include "share/compat.h"
  32 #include <stdio.h>
  33 #include <stdlib.h>
  34 #include <string.h>
  35 #include "operations_shorthand.h"
  36
  37 static void show_version(void);
  38 static FLAC__bool do_major_operation(const CommandLineOptions *options);
  39 static FLAC__bool do_major_operation_on_file(const char *filename, const CommandLineOptions *options);
  40 static FLAC__bool do_major_operation__list(const char *filename, FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
  41 static FLAC__bool do_major_operation__append(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
  42 static FLAC__bool do_major_operation__remove(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
  43 static FLAC__bool do_major_operation__remove_all(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
  44 static FLAC__bool do_shorthand_operations(const CommandLineOptions *options);
  45 static FLAC__bool do_shorthand_operations_on_file(const char *filename, const CommandLineOptions *options);
  46 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);
  47 static FLAC__bool do_shorthand_operation__add_replay_gain(char **filenames, unsigned num_files, FLAC__bool preserve_modtime);
  48 static FLAC__bool do_shorthand_operation__add_padding(const char *filename, FLAC__Metadata_Chain *chain, unsigned length, FLAC__bool *needs_write);
  49
  50 static FLAC__bool passes_filter(const CommandLineOptions *options, const FLAC__StreamMetadata *block, unsigned block_number);
  51 static void write_metadata(const char *filename, FLAC__StreamMetadata *block, unsigned block_number, FLAC__bool raw, FLAC__bool hexdump_application);
  52
  53 /* from operations_shorthand_seektable.c */
  54 extern FLAC__bool do_shorthand_operation__add_seekpoints(const char *filename, FLAC__Metadata_Chain *chain, const char *specification, FLAC__bool *needs_write);
  55
  56 /* from operations_shorthand_streaminfo.c */
  57 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);
  58
  59 /* from operations_shorthand_vorbiscomment.c */
  60 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);
  61
  62 /* from operations_shorthand_cuesheet.c */
  63 extern FLAC__bool do_shorthand_operation__cuesheet(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write);
  64
  65 /* from operations_shorthand_picture.c */
  66 extern FLAC__bool do_shorthand_operation__picture(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write);
  67
  68
  69 FLAC__bool do_operations(const CommandLineOptions *options)
  70 {
  71         FLAC__bool ok = true;
  72
  73         if(options->show_long_help) {
  74                 long_usage(0);
  75         }
  76         if(options->show_version) {
  77                 show_version();
  78         }
  79         else if(options->args.checks.num_major_ops > 0) {
  80                 FLAC__ASSERT(options->args.checks.num_shorthand_ops == 0);
  81                 FLAC__ASSERT(options->args.checks.num_major_ops == 1);
  82                 FLAC__ASSERT(options->args.checks.num_major_ops == options->ops.num_operations);
  83                 ok = do_major_operation(options);
  84         }
  85         else if(options->args.checks.num_shorthand_ops > 0) {
  86                 FLAC__ASSERT(options->args.checks.num_shorthand_ops == options->ops.num_operations);
  87                 ok = do_shorthand_operations(options);
  88         }
  89
  90         return ok;
  91 }
  92
  93 /*
  94  * local routines
  95  */
  96
  97 void show_version(void)
  98 {
  99         printf("metaflac %s\n", FLAC__VERSION_STRING);
 100 }
 101
 102 FLAC__bool do_major_operation(const CommandLineOptions *options)
 103 {
 104         unsigned i;
 105         FLAC__bool ok = true;
 106
 107         /* to die after first error,     v---  add '&& ok' here */
 108         for(i = 0; i < options->num_files; i++)
 109                 ok &= do_major_operation_on_file(options->filenames[i], options);
 110
 111         return ok;
 112 }
 113
 114 FLAC__bool do_major_operation_on_file(const char *filename, const CommandLineOptions *options)
 115 {
 116         FLAC__bool ok = true, needs_write = false, is_ogg = false;
 117         FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new();
 118
 119         if(0 == chain)
 120                 die("out of memory allocating chain");
 121
 122         /*@@@@ lame way of guessing the file type */
 123         if(strlen(filename) >= 4 && (0 == strcmp(filename+strlen(filename)-4, ".oga") || 0 == strcmp(filename+strlen(filename)-4, ".ogg")))
 124                 is_ogg = true;
 125
 126         if(! (is_ogg? FLAC__metadata_chain_read_ogg(chain, filename) : FLAC__metadata_chain_read(chain, filename)) ) {
 127                 print_error_with_chain_status(chain, "%s: ERROR: reading metadata", filename);
 128                 FLAC__metadata_chain_delete(chain);
 129                 return false;
 130         }
 131
 132         switch(options->ops.operations[0].type) {
 133                 case OP__LIST:
 134                         ok = do_major_operation__list(options->prefix_with_filename? filename : 0, chain, options);
 135                         break;
 136                 case OP__APPEND:
 137                         ok = do_major_operation__append(chain, options);
 138                         needs_write = true;
 139                         break;
 140                 case OP__REMOVE:
 141                         ok = do_major_operation__remove(chain, options);
 142                         needs_write = true;
 143                         break;
 144                 case OP__REMOVE_ALL:
 145                         ok = do_major_operation__remove_all(chain, options);
 146                         needs_write = true;
 147                         break;
 148                 case OP__MERGE_PADDING:
 149                         FLAC__metadata_chain_merge_padding(chain);
 150                         needs_write = true;
 151                         break;
 152                 case OP__SORT_PADDING:
 153                         FLAC__metadata_chain_sort_padding(chain);
 154                         needs_write = true;
 155                         break;
 156                 default:
 157                         FLAC__ASSERT(0);
 158                         return false;
 159         }
 160
 161         if(ok && needs_write) {
 162                 if(options->use_padding)
 163                         FLAC__metadata_chain_sort_padding(chain);
 164                 ok = FLAC__metadata_chain_write(chain, options->use_padding, options->preserve_modtime);
 165                 if(!ok)
 166                         print_error_with_chain_status(chain, "%s: ERROR: writing FLAC file", filename);
 167         }
 168
 169         FLAC__metadata_chain_delete(chain);
 170
 171         return ok;
 172 }
 173
 174 FLAC__bool do_major_operation__list(const char *filename, FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
 175 {
 176         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
 177         FLAC__StreamMetadata *block;
 178         FLAC__bool ok = true;
 179         unsigned block_number;
 180
 181         if(0 == iterator)
 182                 die("out of memory allocating iterator");
 183
 184         FLAC__metadata_iterator_init(iterator, chain);
 185
 186         block_number = 0;
 187         do {
 188                 block = FLAC__metadata_iterator_get_block(iterator);
 189                 ok &= (0 != block);
 190                 if(!ok)
 191                         flac_fprintf(stderr, "%s: ERROR: couldn't get block from chain\n", filename);
 192                 else if(passes_filter(options, FLAC__metadata_iterator_get_block(iterator), block_number))
 193                         write_metadata(filename, block, block_number, !options->utf8_convert, options->application_data_format_is_hexdump);
 194                 block_number++;
 195         } while(ok && FLAC__metadata_iterator_next(iterator));
 196
 197         FLAC__metadata_iterator_delete(iterator);
 198
 199         return ok;
 200 }
 201
 202 FLAC__bool do_major_operation__append(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
 203 {
 204         (void) chain, (void) options;
 205         flac_fprintf(stderr, "ERROR: --append not implemented yet\n");
 206         return false;
 207 }
 208
 209 FLAC__bool do_major_operation__remove(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
 210 {
 211         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
 212         FLAC__bool ok = true;
 213         unsigned block_number;
 214
 215         if(0 == iterator)
 216                 die("out of memory allocating iterator");
 217
 218         FLAC__metadata_iterator_init(iterator, chain);
 219
 220         block_number = 0;
 221         while(ok && FLAC__metadata_iterator_next(iterator)) {
 222                 block_number++;
 223                 if(passes_filter(options, FLAC__metadata_iterator_get_block(iterator), block_number)) {
 224                         ok &= FLAC__metadata_iterator_delete_block(iterator, options->use_padding);
 225                         if(options->use_padding)
 226                                 ok &= FLAC__metadata_iterator_next(iterator);
 227                 }
 228         }
 229
 230         FLAC__metadata_iterator_delete(iterator);
 231
 232         return ok;
 233 }
 234
 235 FLAC__bool do_major_operation__remove_all(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
 236 {
 237         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
 238         FLAC__bool ok = true;
 239
 240         if(0 == iterator)
 241                 die("out of memory allocating iterator");
 242
 243         FLAC__metadata_iterator_init(iterator, chain);
 244
 245         while(ok && FLAC__metadata_iterator_next(iterator)) {
 246                 ok &= FLAC__metadata_iterator_delete_block(iterator, options->use_padding);
 247                 if(options->use_padding)
 248                         ok &= FLAC__metadata_iterator_next(iterator);
 249         }
 250
 251         FLAC__metadata_iterator_delete(iterator);
 252
 253         return ok;
 254 }
 255
 256 FLAC__bool do_shorthand_operations(const CommandLineOptions *options)
 257 {
 258         unsigned i;
 259         FLAC__bool ok = true;
 260
 261         /* to die after first error,     v---  add '&& ok' here */
 262         for(i = 0; i < options->num_files; i++)
 263                 ok &= do_shorthand_operations_on_file(options->filenames[i], options);
 264
 265         /* check if OP__ADD_REPLAY_GAIN requested */
 266         if(ok && options->num_files > 0) {
 267                 for(i = 0; i < options->ops.num_operations; i++) {
 268                         if(options->ops.operations[i].type == OP__ADD_REPLAY_GAIN)
 269                                 ok = do_shorthand_operation__add_replay_gain(options->filenames, options->num_files, options->preserve_modtime);
 270                 }
 271         }
 272
 273         return ok;
 274 }
 275
 276 FLAC__bool do_shorthand_operations_on_file(const char *filename, const CommandLineOptions *options)
 277 {
 278         unsigned i;
 279         FLAC__bool ok = true, needs_write = false, use_padding = options->use_padding;
 280         FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new();
 281
 282         if(0 == chain)
 283                 die("out of memory allocating chain");
 284
 285         if(!FLAC__metadata_chain_read(chain, filename)) {
 286                 print_error_with_chain_status(chain, "%s: ERROR: reading metadata", filename);
 287                 return false;
 288         }
 289
 290         for(i = 0; i < options->ops.num_operations && ok; i++) {
 291                 /*
 292                  * Do OP__ADD_SEEKPOINT last to avoid decoding twice if both
 293                  * --add-seekpoint and --import-cuesheet-from are used.
 294                  */
 295                 if(options->ops.operations[i].type != OP__ADD_SEEKPOINT)
 296                         ok &= do_shorthand_operation(filename, options->prefix_with_filename, chain, &options->ops.operations[i], &needs_write, options->utf8_convert);
 297
 298                 /* The following seems counterintuitive but the meaning
 299                  * of 'use_padding' is 'try to keep the overall metadata
 300                  * to its original size, adding or truncating extra
 301                  * padding if necessary' which is why we need to turn it
 302                  * off in this case.  If we don't, the extra padding block
 303                  * will just be truncated.
 304                  */
 305                 if(options->ops.operations[i].type == OP__ADD_PADDING)
 306                         use_padding = false;
 307         }
 308
 309         /*
 310          * Do OP__ADD_SEEKPOINT last to avoid decoding twice if both
 311          * --add-seekpoint and --import-cuesheet-from are used.
 312          */
 313         for(i = 0; i < options->ops.num_operations && ok; i++) {
 314                 if(options->ops.operations[i].type == OP__ADD_SEEKPOINT)
 315                         ok &= do_shorthand_operation(filename, options->prefix_with_filename, chain, &options->ops.operations[i], &needs_write, options->utf8_convert);
 316         }
 317
 318         if(ok && needs_write) {
 319                 if(use_padding)
 320                         FLAC__metadata_chain_sort_padding(chain);
 321                 ok = FLAC__metadata_chain_write(chain, use_padding, options->preserve_modtime);
 322                 if(!ok)
 323                         print_error_with_chain_status(chain, "%s: ERROR: writing FLAC file", filename);
 324         }
 325
 326         FLAC__metadata_chain_delete(chain);
 327
 328         return ok;
 329 }
 330
 331 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)
 332 {
 333         FLAC__bool ok = true;
 334
 335         switch(operation->type) {
 336                 case OP__SHOW_MD5SUM:
 337                 case OP__SHOW_MIN_BLOCKSIZE:
 338                 case OP__SHOW_MAX_BLOCKSIZE:
 339                 case OP__SHOW_MIN_FRAMESIZE:
 340                 case OP__SHOW_MAX_FRAMESIZE:
 341                 case OP__SHOW_SAMPLE_RATE:
 342                 case OP__SHOW_CHANNELS:
 343                 case OP__SHOW_BPS:
 344                 case OP__SHOW_TOTAL_SAMPLES:
 345                 case OP__SET_MD5SUM:
 346                 case OP__SET_MIN_BLOCKSIZE:
 347                 case OP__SET_MAX_BLOCKSIZE:
 348                 case OP__SET_MIN_FRAMESIZE:
 349                 case OP__SET_MAX_FRAMESIZE:
 350                 case OP__SET_SAMPLE_RATE:
 351                 case OP__SET_CHANNELS:
 352                 case OP__SET_BPS:
 353                 case OP__SET_TOTAL_SAMPLES:
 354                         ok = do_shorthand_operation__streaminfo(filename, prefix_with_filename, chain, operation, needs_write);
 355                         break;
 356                 case OP__SHOW_VC_VENDOR:
 357                 case OP__SHOW_VC_FIELD:
 358                 case OP__REMOVE_VC_ALL:
 359                 case OP__REMOVE_VC_FIELD:
 360                 case OP__REMOVE_VC_FIRSTFIELD:
 361                 case OP__SET_VC_FIELD:
 362                 case OP__IMPORT_VC_FROM:
 363                 case OP__EXPORT_VC_TO:
 364                         ok = do_shorthand_operation__vorbis_comment(filename, prefix_with_filename, chain, operation, needs_write, !utf8_convert);
 365                         break;
 366                 case OP__IMPORT_CUESHEET_FROM:
 367                 case OP__EXPORT_CUESHEET_TO:
 368                         ok = do_shorthand_operation__cuesheet(filename, chain, operation, needs_write);
 369                         break;
 370                 case OP__IMPORT_PICTURE_FROM:
 371                 case OP__EXPORT_PICTURE_TO:
 372                         ok = do_shorthand_operation__picture(filename, chain, operation, needs_write);
 373                         break;
 374                 case OP__ADD_SEEKPOINT:
 375                         ok = do_shorthand_operation__add_seekpoints(filename, chain, operation->argument.add_seekpoint.specification, needs_write);
 376                         break;
 377                 case OP__ADD_REPLAY_GAIN:
 378                         /* this command is always executed last */
 379                         ok = true;
 380                         break;
 381                 case OP__ADD_PADDING:
 382                         ok = do_shorthand_operation__add_padding(filename, chain, operation->argument.add_padding.length, needs_write);
 383                         break;
 384                 default:
 385                         ok = false;
 386                         FLAC__ASSERT(0);
 387                         break;
 388         };
 389
 390         return ok;
 391 }
 392
 393 FLAC__bool do_shorthand_operation__add_replay_gain(char **filenames, unsigned num_files, FLAC__bool preserve_modtime)
 394 {
 395         FLAC__StreamMetadata streaminfo;
 396         float *title_gains = 0, *title_peaks = 0;
 397         float album_gain, album_peak;
 398         unsigned sample_rate = 0;
 399         unsigned bits_per_sample = 0;
 400         unsigned channels = 0;
 401         unsigned i;
 402         const char *error;
 403         FLAC__bool first = true;
 404
 405         FLAC__ASSERT(num_files > 0);
 406
 407         for(i = 0; i < num_files; i++) {
 408                 FLAC__ASSERT(0 != filenames[i]);
 409                 if(!FLAC__metadata_get_streaminfo(filenames[i], &streaminfo)) {
 410                         flac_fprintf(stderr, "%s: ERROR: can't open file or get STREAMINFO block\n", filenames[i]);
 411                         return false;
 412                 }
 413                 if(first) {
 414                         first = false;
 415                         sample_rate = streaminfo.data.stream_info.sample_rate;
 416                         bits_per_sample = streaminfo.data.stream_info.bits_per_sample;
 417                         channels = streaminfo.data.stream_info.channels;
 418                 }
 419                 else {
 420                         if(sample_rate != streaminfo.data.stream_info.sample_rate) {
 421                                 flac_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);
 422                                 return false;
 423                         }
 424                         if(bits_per_sample != streaminfo.data.stream_info.bits_per_sample) {
 425                                 flac_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);
 426                                 return false;
 427                         }
 428                         if(channels != streaminfo.data.stream_info.channels) {
 429                                 flac_fprintf(stderr, "%s: ERROR: # channels (%u) does not match previous files' (%u)\n", filenames[i], streaminfo.data.stream_info.channels, channels);
 430                                 return false;
 431                         }
 432                 }
 433                 if(!grabbag__replaygain_is_valid_sample_frequency(sample_rate)) {
 434                         flac_fprintf(stderr, "%s: ERROR: sample rate of %u Hz is not supported\n", filenames[i], sample_rate);
 435                         return false;
 436                 }
 437                 if(channels != 1 && channels != 2) {
 438                         flac_fprintf(stderr, "%s: ERROR: # of channels (%u) is not supported, must be 1 or 2\n", filenames[i], channels);
 439                         return false;
 440                 }
 441         }
 442         FLAC__ASSERT(bits_per_sample >= FLAC__MIN_BITS_PER_SAMPLE && bits_per_sample <= FLAC__MAX_BITS_PER_SAMPLE);
 443
 444         if(!grabbag__replaygain_init(sample_rate)) {
 445                 FLAC__ASSERT(0);
 446                 /* double protection */
 447                 flac_fprintf(stderr, "internal error\n");
 448                 return false;
 449         }
 450
 451         if(
 452                 0 == (title_gains = safe_malloc_mul_2op_(sizeof(float), /*times*/num_files)) ||
 453                 0 == (title_peaks = safe_malloc_mul_2op_(sizeof(float), /*times*/num_files))
 454         )
 455                 die("out of memory allocating space for title gains/peaks");
 456
 457         for(i = 0; i < num_files; i++) {
 458                 if(0 != (error = grabbag__replaygain_analyze_file(filenames[i], title_gains+i, title_peaks+i))) {
 459                         flac_fprintf(stderr, "%s: ERROR: during analysis (%s)\n", filenames[i], error);
 460                         free(title_gains);
 461                         free(title_peaks);
 462                         return false;
 463                 }
 464         }
 465         grabbag__replaygain_get_album(&album_gain, &album_peak);
 466
 467         for(i = 0; i < num_files; i++) {
 468                 if(0 != (error = grabbag__replaygain_store_to_file(filenames[i], album_gain, album_peak, title_gains[i], title_peaks[i], preserve_modtime))) {
 469                         flac_fprintf(stderr, "%s: ERROR: writing tags (%s)\n", filenames[i], error);
 470                         free(title_gains);
 471                         free(title_peaks);
 472                         return false;
 473                 }
 474         }
 475
 476         free(title_gains);
 477         free(title_peaks);
 478         return true;
 479 }
 480
 481 FLAC__bool do_shorthand_operation__add_padding(const char *filename, FLAC__Metadata_Chain *chain, unsigned length, FLAC__bool *needs_write)
 482 {
 483         FLAC__StreamMetadata *padding = 0;
 484         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
 485
 486         if(0 == iterator)
 487                 die("out of memory allocating iterator");
 488
 489         FLAC__metadata_iterator_init(iterator, chain);
 490
 491         while(FLAC__metadata_iterator_next(iterator))
 492                 ;
 493
 494         padding = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING);
 495         if(0 == padding)
 496                 die("out of memory allocating PADDING block");
 497
 498         padding->length = length;
 499
 500         if(!FLAC__metadata_iterator_insert_block_after(iterator, padding)) {
 501                 print_error_with_chain_status(chain, "%s: ERROR: adding new PADDING block to metadata", filename);
 502                 FLAC__metadata_object_delete(padding);
 503                 FLAC__metadata_iterator_delete(iterator);
 504                 return false;
 505         }
 506
 507         FLAC__metadata_iterator_delete(iterator);
 508         *needs_write = true;
 509         return true;
 510 }
 511
 512 FLAC__bool passes_filter(const CommandLineOptions *options, const FLAC__StreamMetadata *block, unsigned block_number)
 513 {
 514         unsigned i, j;
 515         FLAC__bool matches_number = false, matches_type = false;
 516         FLAC__bool has_block_number_arg = false;
 517
 518         for(i = 0; i < options->args.num_arguments; i++) {
 519                 if(options->args.arguments[i].type == ARG__BLOCK_TYPE || options->args.arguments[i].type == ARG__EXCEPT_BLOCK_TYPE) {
 520                         for(j = 0; j < options->args.arguments[i].value.block_type.num_entries; j++) {
 521                                 if(options->args.arguments[i].value.block_type.entries[j].type == block->type) {
 522                                         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))
 523                                                 matches_type = true;
 524                                 }
 525                         }
 526                 }
 527                 else if(options->args.arguments[i].type == ARG__BLOCK_NUMBER) {
 528                         has_block_number_arg = true;
 529                         for(j = 0; j < options->args.arguments[i].value.block_number.num_entries; j++) {
 530                                 if(options->args.arguments[i].value.block_number.entries[j] == block_number)
 531                                         matches_number = true;
 532                         }
 533                 }
 534         }
 535
 536         if(!has_block_number_arg)
 537                 matches_number = true;
 538
 539         if(options->args.checks.has_block_type) {
 540                 FLAC__ASSERT(!options->args.checks.has_except_block_type);
 541         }
 542         else if(options->args.checks.has_except_block_type)
 543                 matches_type = !matches_type;
 544         else
 545                 matches_type = true;
 546
 547         return matches_number && matches_type;
 548 }
 549
 550 void write_metadata(const char *filename, FLAC__StreamMetadata *block, unsigned block_number, FLAC__bool raw, FLAC__bool hexdump_application)
 551 {
 552         unsigned i, j;
 553
 554 /*@@@ yuck, should do this with a varargs function or something: */
 555 #define PPR if(filename) { if(raw) printf("%s:",filename); else flac_printf("%s:",filename); }
 556         PPR; printf("METADATA block #%u\n", block_number);
 557         PPR; printf("  type: %u (%s)\n", (unsigned)block->type, block->type < FLAC__METADATA_TYPE_UNDEFINED? FLAC__MetadataTypeString[block->type] : "UNKNOWN");
 558         PPR; printf("  is last: %s\n", block->is_last? "true":"false");
 559         PPR; printf("  length: %u\n", block->length);
 560
 561         switch(block->type) {
 562                 case FLAC__METADATA_TYPE_STREAMINFO:
 563                         PPR; printf("  minimum blocksize: %u samples\n", block->data.stream_info.min_blocksize);
 564                         PPR; printf("  maximum blocksize: %u samples\n", block->data.stream_info.max_blocksize);
 565                         PPR; printf("  minimum framesize: %u bytes\n", block->data.stream_info.min_framesize);
 566                         PPR; printf("  maximum framesize: %u bytes\n", block->data.stream_info.max_framesize);
 567                         PPR; printf("  sample_rate: %u Hz\n", block->data.stream_info.sample_rate);
 568                         PPR; printf("  channels: %u\n", block->data.stream_info.channels);
 569                         PPR; printf("  bits-per-sample: %u\n", block->data.stream_info.bits_per_sample);
 570                         PPR; printf("  total samples: %" PRIu64 "\n", block->data.stream_info.total_samples);
 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                                         PPR; printf("    point %u: sample_number=%" PRIu64 ", stream_offset=%" PRIu64 ", 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);
 598                                 }
 599                                 else {
 600                                         PPR; printf("    point %u: PLACEHOLDER\n", i);
 601                                 }
 602                         }
 603                         break;
 604                 case FLAC__METADATA_TYPE_VORBIS_COMMENT:
 605                         PPR; printf("  vendor string: ");
 606                         write_vc_field(0, &block->data.vorbis_comment.vendor_string, raw, stdout);
 607                         PPR; printf("  comments: %u\n", block->data.vorbis_comment.num_comments);
 608                         for(i = 0; i < block->data.vorbis_comment.num_comments; i++) {
 609                                 PPR; printf("    comment[%u]: ", i);
 610                                 write_vc_field(0, &block->data.vorbis_comment.comments[i], raw, stdout);
 611                         }
 612                         break;
 613                 case FLAC__METADATA_TYPE_CUESHEET:
 614                         PPR; printf("  media catalog number: %s\n", block->data.cue_sheet.media_catalog_number);
 615                         PPR; printf("  lead-in: %" PRIu64 "\n", block->data.cue_sheet.lead_in);
 616                         PPR; printf("  is CD: %s\n", block->data.cue_sheet.is_cd? "true":"false");
 617                         PPR; printf("  number of tracks: %u\n", block->data.cue_sheet.num_tracks);
 618                         for(i = 0; i < block->data.cue_sheet.num_tracks; i++) {
 619                                 const FLAC__StreamMetadata_CueSheet_Track *track = block->data.cue_sheet.tracks+i;
 620                                 const FLAC__bool is_last = (i == block->data.cue_sheet.num_tracks-1);
 621                                 const FLAC__bool is_leadout = is_last && track->num_indices == 0;
 622                                 PPR; printf("    track[%u]\n", i);
 623                                 PPR; printf("      offset: %" PRIu64 "\n", track->offset);
 624                                 if(is_last) {
 625                                         PPR; printf("      number: %u (%s)\n", (unsigned)track->number, is_leadout? "LEAD-OUT" : "INVALID");
 626                                 }
 627                                 else {
 628                                         PPR; printf("      number: %u\n", (unsigned)track->number);
 629                                 }
 630                                 if(!is_leadout) {
 631                                         PPR; printf("      ISRC: %s\n", track->isrc);
 632                                         PPR; printf("      type: %s\n", track->type == 1? "DATA" : "AUDIO");
 633                                         PPR; printf("      pre-emphasis: %s\n", track->pre_emphasis? "true":"false");
 634                                         PPR; printf("      number of index points: %u\n", track->num_indices);
 635                                         for(j = 0; j < track->num_indices; j++) {
 636                                                 const FLAC__StreamMetadata_CueSheet_Index *indx = track->indices+j;
 637                                                 PPR; printf("        index[%u]\n", j);
 638                                                 PPR; printf("          offset: %" PRIu64 "\n", indx->offset);
 639                                                 PPR; printf("          number: %u\n", (unsigned)indx->number);
 640                                         }
 641                                 }
 642                         }
 643                         break;
 644                 case FLAC__METADATA_TYPE_PICTURE:
 645                         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");
 646                         PPR; printf("  MIME type: %s\n", block->data.picture.mime_type);
 647                         PPR; printf("  description: %s\n", block->data.picture.description);
 648                         PPR; printf("  width: %u\n", (unsigned)block->data.picture.width);
 649                         PPR; printf("  height: %u\n", (unsigned)block->data.picture.height);
 650                         PPR; printf("  depth: %u\n", (unsigned)block->data.picture.depth);
 651                         PPR; printf("  colors: %u%s\n", (unsigned)block->data.picture.colors, block->data.picture.colors? "" : " (unindexed)");
 652                         PPR; printf("  data length: %u\n", (unsigned)block->data.picture.data_length);
 653                         PPR; printf("  data:\n");
 654                         if(0 != block->data.picture.data)
 655                                 hexdump(filename, block->data.picture.data, block->data.picture.data_length, "    ");
 656                         break;
 657                 default:
 658                         PPR; printf("  data contents:\n");
 659                         if(0 != block->data.unknown.data)
 660                                 hexdump(filename, block->data.unknown.data, block->length, "    ");
 661                         break;
 662         }
 663 #undef PPR
 664 }