src/metaflac/operations.c

   1 /* metaflac - Command-line FLAC metadata editor
   2  * Copyright (C) 2001,2002,2003,2004,2005,2006,2007,2008,2009  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 along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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/alloc.h"
  29 #include "share/grabbag.h"
  30 #include "share/compat.h"
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <string.h>
  34 #include "operations_shorthand.h"
  35
  36 static void show_version(void);
  37 static FLAC__bool do_major_operation(const CommandLineOptions *options);
  38 static FLAC__bool do_major_operation_on_file(const char *filename, const CommandLineOptions *options);
  39 static FLAC__bool do_major_operation__list(const char *filename, FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
  40 static FLAC__bool do_major_operation__append(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
  41 static FLAC__bool do_major_operation__remove(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
  42 static FLAC__bool do_major_operation__remove_all(FLAC__Metadata_Chain *chain, const CommandLineOptions *options);
  43 static FLAC__bool do_shorthand_operations(const CommandLineOptions *options);
  44 static FLAC__bool do_shorthand_operations_on_file(const char *filename, const CommandLineOptions *options);
  45 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);
  46 static FLAC__bool do_shorthand_operation__add_replay_gain(char **filenames, unsigned num_files, FLAC__bool preserve_modtime);
  47 static FLAC__bool do_shorthand_operation__add_padding(const char *filename, FLAC__Metadata_Chain *chain, unsigned length, FLAC__bool *needs_write);
  48
  49 static FLAC__bool passes_filter(const CommandLineOptions *options, const FLAC__StreamMetadata *block, unsigned block_number);
  50 static void write_metadata(const char *filename, FLAC__StreamMetadata *block, unsigned block_number, FLAC__bool raw, FLAC__bool hexdump_application);
  51
  52 /* from operations_shorthand_seektable.c */
  53 extern FLAC__bool do_shorthand_operation__add_seekpoints(const char *filename, FLAC__Metadata_Chain *chain, const char *specification, FLAC__bool *needs_write);
  54
  55 /* from operations_shorthand_streaminfo.c */
  56 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);
  57
  58 /* from operations_shorthand_vorbiscomment.c */
  59 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);
  60
  61 /* from operations_shorthand_cuesheet.c */
  62 extern FLAC__bool do_shorthand_operation__cuesheet(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write);
  63
  64 /* from operations_shorthand_picture.c */
  65 extern FLAC__bool do_shorthand_operation__picture(const char *filename, FLAC__Metadata_Chain *chain, const Operation *operation, FLAC__bool *needs_write);
  66
  67
  68 FLAC__bool do_operations(const CommandLineOptions *options)
  69 {
  70         FLAC__bool ok = true;
  71
  72         if(options->show_long_help) {
  73                 long_usage(0);
  74         }
  75         if(options->show_version) {
  76                 show_version();
  77         }
  78         else if(options->args.checks.num_major_ops > 0) {
  79                 FLAC__ASSERT(options->args.checks.num_shorthand_ops == 0);
  80                 FLAC__ASSERT(options->args.checks.num_major_ops == 1);
  81                 FLAC__ASSERT(options->args.checks.num_major_ops == options->ops.num_operations);
  82                 ok = do_major_operation(options);
  83         }
  84         else if(options->args.checks.num_shorthand_ops > 0) {
  85                 FLAC__ASSERT(options->args.checks.num_shorthand_ops == options->ops.num_operations);
  86                 ok = do_shorthand_operations(options);
  87         }
  88
  89         return ok;
  90 }
  91
  92 /*
  93  * local routines
  94  */
  95
  96 void show_version(void)
  97 {
  98         printf("metaflac %s\n", FLAC__VERSION_STRING);
  99 }
 100
 101 FLAC__bool do_major_operation(const CommandLineOptions *options)
 102 {
 103         unsigned i;
 104         FLAC__bool ok = true;
 105
 106         /* to die after first error,     v---  add '&& ok' here */
 107         for(i = 0; i < options->num_files; i++)
 108                 ok &= do_major_operation_on_file(options->filenames[i], options);
 109
 110         return ok;
 111 }
 112
 113 FLAC__bool do_major_operation_on_file(const char *filename, const CommandLineOptions *options)
 114 {
 115         FLAC__bool ok = true, needs_write = false, is_ogg = false;
 116         FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new();
 117
 118         if(0 == chain)
 119                 die("out of memory allocating chain");
 120
 121         /*@@@@ lame way of guessing the file type */
 122         if(strlen(filename) >= 4 && (0 == strcmp(filename+strlen(filename)-4, ".oga") || 0 == strcmp(filename+strlen(filename)-4, ".ogg")))
 123                 is_ogg = true;
 124
 125         if(! (is_ogg? FLAC__metadata_chain_read_ogg(chain, filename) : FLAC__metadata_chain_read(chain, filename)) ) {
 126                 print_error_with_chain_status(chain, "%s: ERROR: reading metadata", filename);
 127                 FLAC__metadata_chain_delete(chain);
 128                 return false;
 129         }
 130
 131         switch(options->ops.operations[0].type) {
 132                 case OP__LIST:
 133                         ok = do_major_operation__list(options->prefix_with_filename? filename : 0, chain, options);
 134                         break;
 135                 case OP__APPEND:
 136                         ok = do_major_operation__append(chain, options);
 137                         needs_write = true;
 138                         break;
 139                 case OP__REMOVE:
 140                         ok = do_major_operation__remove(chain, options);
 141                         needs_write = true;
 142                         break;
 143                 case OP__REMOVE_ALL:
 144                         ok = do_major_operation__remove_all(chain, options);
 145                         needs_write = true;
 146                         break;
 147                 case OP__MERGE_PADDING:
 148                         FLAC__metadata_chain_merge_padding(chain);
 149                         needs_write = true;
 150                         break;
 151                 case OP__SORT_PADDING:
 152                         FLAC__metadata_chain_sort_padding(chain);
 153                         needs_write = true;
 154                         break;
 155                 default:
 156                         FLAC__ASSERT(0);
 157                         return false;
 158         }
 159
 160         if(ok && needs_write) {
 161                 if(options->use_padding)
 162                         FLAC__metadata_chain_sort_padding(chain);
 163                 ok = FLAC__metadata_chain_write(chain, options->use_padding, options->preserve_modtime);
 164                 if(!ok)
 165                         print_error_with_chain_status(chain, "%s: ERROR: writing FLAC file", filename);
 166         }
 167
 168         FLAC__metadata_chain_delete(chain);
 169
 170         return ok;
 171 }
 172
 173 FLAC__bool do_major_operation__list(const char *filename, FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
 174 {
 175         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
 176         FLAC__StreamMetadata *block;
 177         FLAC__bool ok = true;
 178         unsigned block_number;
 179
 180         if(0 == iterator)
 181                 die("out of memory allocating iterator");
 182
 183         FLAC__metadata_iterator_init(iterator, chain);
 184
 185         block_number = 0;
 186         do {
 187                 block = FLAC__metadata_iterator_get_block(iterator);
 188                 ok &= (0 != block);
 189                 if(!ok)
 190                         flac_fprintf(stderr, "%s: ERROR: couldn't get block from chain\n", filename);
 191                 else if(passes_filter(options, FLAC__metadata_iterator_get_block(iterator), block_number))
 192                         write_metadata(filename, block, block_number, !options->utf8_convert, options->application_data_format_is_hexdump);
 193                 block_number++;
 194         } while(ok && FLAC__metadata_iterator_next(iterator));
 195
 196         FLAC__metadata_iterator_delete(iterator);
 197
 198         return ok;
 199 }
 200
 201 FLAC__bool do_major_operation__append(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
 202 {
 203         (void) chain, (void) options;
 204         flac_fprintf(stderr, "ERROR: --append not implemented yet\n");
 205         return false;
 206 }
 207
 208 FLAC__bool do_major_operation__remove(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
 209 {
 210         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
 211         FLAC__bool ok = true;
 212         unsigned block_number;
 213
 214         if(0 == iterator)
 215                 die("out of memory allocating iterator");
 216
 217         FLAC__metadata_iterator_init(iterator, chain);
 218
 219         block_number = 0;
 220         while(ok && FLAC__metadata_iterator_next(iterator)) {
 221                 block_number++;
 222                 if(passes_filter(options, FLAC__metadata_iterator_get_block(iterator), block_number)) {
 223                         ok &= FLAC__metadata_iterator_delete_block(iterator, options->use_padding);
 224                         if(options->use_padding)
 225                                 ok &= FLAC__metadata_iterator_next(iterator);
 226                 }
 227         }
 228
 229         FLAC__metadata_iterator_delete(iterator);
 230
 231         return ok;
 232 }
 233
 234 FLAC__bool do_major_operation__remove_all(FLAC__Metadata_Chain *chain, const CommandLineOptions *options)
 235 {
 236         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
 237         FLAC__bool ok = true;
 238
 239         if(0 == iterator)
 240                 die("out of memory allocating iterator");
 241
 242         FLAC__metadata_iterator_init(iterator, chain);
 243
 244         while(ok && FLAC__metadata_iterator_next(iterator)) {
 245                 ok &= FLAC__metadata_iterator_delete_block(iterator, options->use_padding);
 246                 if(options->use_padding)
 247                         ok &= FLAC__metadata_iterator_next(iterator);
 248         }
 249
 250         FLAC__metadata_iterator_delete(iterator);
 251
 252         return ok;
 253 }
 254
 255 FLAC__bool do_shorthand_operations(const CommandLineOptions *options)
 256 {
 257         unsigned i;
 258         FLAC__bool ok = true;
 259
 260         /* to die after first error,     v---  add '&& ok' here */
 261         for(i = 0; i < options->num_files; i++)
 262                 ok &= do_shorthand_operations_on_file(options->filenames[i], options);
 263
 264         /* check if OP__ADD_REPLAY_GAIN requested */
 265         if(ok && options->num_files > 0) {
 266                 for(i = 0; i < options->ops.num_operations; i++) {
 267                         if(options->ops.operations[i].type == OP__ADD_REPLAY_GAIN)
 268                                 ok = do_shorthand_operation__add_replay_gain(options->filenames, options->num_files, options->preserve_modtime);
 269                 }
 270         }
 271
 272         return ok;
 273 }
 274
 275 FLAC__bool do_shorthand_operations_on_file(const char *filename, const CommandLineOptions *options)
 276 {
 277         unsigned i;
 278         FLAC__bool ok = true, needs_write = false, use_padding = options->use_padding;
 279         FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new();
 280
 281         if(0 == chain)
 282                 die("out of memory allocating chain");
 283
 284         if(!FLAC__metadata_chain_read(chain, filename)) {
 285                 print_error_with_chain_status(chain, "%s: ERROR: reading metadata", filename);
 286                 return false;
 287         }
 288
 289         for(i = 0; i < options->ops.num_operations && ok; i++) {
 290                 /*
 291                  * Do OP__ADD_SEEKPOINT last to avoid decoding twice if both
 292                  * --add-seekpoint and --import-cuesheet-from are used.
 293                  */
 294                 if(options->ops.operations[i].type != OP__ADD_SEEKPOINT)
 295                         ok &= do_shorthand_operation(filename, options->prefix_with_filename, chain, &options->ops.operations[i], &needs_write, options->utf8_convert);
 296
 297                 /* The following seems counterintuitive but the meaning
 298                  * of 'use_padding' is 'try to keep the overall metadata
 299                  * to its original size, adding or truncating extra
 300                  * padding if necessary' which is why we need to turn it
 301                  * off in this case.  If we don't, the extra padding block
 302                  * will just be truncated.
 303                  */
 304                 if(options->ops.operations[i].type == OP__ADD_PADDING)
 305                         use_padding = false;
 306         }
 307
 308         /*
 309          * Do OP__ADD_SEEKPOINT last to avoid decoding twice if both
 310          * --add-seekpoint and --import-cuesheet-from are used.
 311          */
 312         for(i = 0; i < options->ops.num_operations && ok; i++) {
 313                 if(options->ops.operations[i].type == OP__ADD_SEEKPOINT)
 314                         ok &= do_shorthand_operation(filename, options->prefix_with_filename, chain, &options->ops.operations[i], &needs_write, options->utf8_convert);
 315         }
 316
 317         if(ok && needs_write) {
 318                 if(use_padding)
 319                         FLAC__metadata_chain_sort_padding(chain);
 320                 ok = FLAC__metadata_chain_write(chain, use_padding, options->preserve_modtime);
 321                 if(!ok)
 322                         print_error_with_chain_status(chain, "%s: ERROR: writing FLAC file", filename);
 323         }
 324
 325         FLAC__metadata_chain_delete(chain);
 326
 327         return ok;
 328 }
 329
 330 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)
 331 {
 332         FLAC__bool ok = true;
 333
 334         switch(operation->type) {
 335                 case OP__SHOW_MD5SUM:
 336                 case OP__SHOW_MIN_BLOCKSIZE:
 337                 case OP__SHOW_MAX_BLOCKSIZE:
 338                 case OP__SHOW_MIN_FRAMESIZE:
 339                 case OP__SHOW_MAX_FRAMESIZE:
 340                 case OP__SHOW_SAMPLE_RATE:
 341                 case OP__SHOW_CHANNELS:
 342                 case OP__SHOW_BPS:
 343                 case OP__SHOW_TOTAL_SAMPLES:
 344                 case OP__SET_MD5SUM:
 345                 case OP__SET_MIN_BLOCKSIZE:
 346                 case OP__SET_MAX_BLOCKSIZE:
 347                 case OP__SET_MIN_FRAMESIZE:
 348                 case OP__SET_MAX_FRAMESIZE:
 349                 case OP__SET_SAMPLE_RATE:
 350                 case OP__SET_CHANNELS:
 351                 case OP__SET_BPS:
 352                 case OP__SET_TOTAL_SAMPLES:
 353                         ok = do_shorthand_operation__streaminfo(filename, prefix_with_filename, chain, operation, needs_write);
 354                         break;
 355                 case OP__SHOW_VC_VENDOR:
 356                 case OP__SHOW_VC_FIELD:
 357                 case OP__REMOVE_VC_ALL:
 358                 case OP__REMOVE_VC_FIELD:
 359                 case OP__REMOVE_VC_FIRSTFIELD:
 360                 case OP__SET_VC_FIELD:
 361                 case OP__IMPORT_VC_FROM:
 362                 case OP__EXPORT_VC_TO:
 363                         ok = do_shorthand_operation__vorbis_comment(filename, prefix_with_filename, chain, operation, needs_write, !utf8_convert);
 364                         break;
 365                 case OP__IMPORT_CUESHEET_FROM:
 366                 case OP__EXPORT_CUESHEET_TO:
 367                         ok = do_shorthand_operation__cuesheet(filename, chain, operation, needs_write);
 368                         break;
 369                 case OP__IMPORT_PICTURE_FROM:
 370                 case OP__EXPORT_PICTURE_TO:
 371                         ok = do_shorthand_operation__picture(filename, chain, operation, needs_write);
 372                         break;
 373                 case OP__ADD_SEEKPOINT:
 374                         ok = do_shorthand_operation__add_seekpoints(filename, chain, operation->argument.add_seekpoint.specification, needs_write);
 375                         break;
 376                 case OP__ADD_REPLAY_GAIN:
 377                         /* this command is always executed last */
 378                         ok = true;
 379                         break;
 380                 case OP__ADD_PADDING:
 381                         ok = do_shorthand_operation__add_padding(filename, chain, operation->argument.add_padding.length, needs_write);
 382                         break;
 383                 default:
 384                         ok = false;
 385                         FLAC__ASSERT(0);
 386                         break;
 387         };
 388
 389         return ok;
 390 }
 391
 392 FLAC__bool do_shorthand_operation__add_replay_gain(char **filenames, unsigned num_files, FLAC__bool preserve_modtime)
 393 {
 394         FLAC__StreamMetadata streaminfo;
 395         float *title_gains = 0, *title_peaks = 0;
 396         float album_gain, album_peak;
 397         unsigned sample_rate = 0;
 398         unsigned bits_per_sample = 0;
 399         unsigned channels = 0;
 400         unsigned i;
 401         const char *error;
 402         FLAC__bool first = true;
 403
 404         FLAC__ASSERT(num_files > 0);
 405
 406         for(i = 0; i < num_files; i++) {
 407                 FLAC__ASSERT(0 != filenames[i]);
 408                 if(!FLAC__metadata_get_streaminfo(filenames[i], &streaminfo)) {
 409                         flac_fprintf(stderr, "%s: ERROR: can't open file or get STREAMINFO block\n", filenames[i]);
 410                         return false;
 411                 }
 412                 if(first) {
 413                         first = false;
 414                         sample_rate = streaminfo.data.stream_info.sample_rate;
 415                         bits_per_sample = streaminfo.data.stream_info.bits_per_sample;
 416                         channels = streaminfo.data.stream_info.channels;
 417                 }
 418                 else {
 419                         if(sample_rate != streaminfo.data.stream_info.sample_rate) {
 420                                 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);
 421                                 return false;
 422                         }
 423                         if(bits_per_sample != streaminfo.data.stream_info.bits_per_sample) {
 424                                 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);
 425                                 return false;
 426                         }
 427                         if(channels != streaminfo.data.stream_info.channels) {
 428                                 flac_fprintf(stderr, "%s: ERROR: # channels (%u) does not match previous files' (%u)\n", filenames[i], streaminfo.data.stream_info.channels, channels);
 429                                 return false;
 430                         }
 431                 }
 432                 if(!grabbag__replaygain_is_valid_sample_frequency(sample_rate)) {
 433                         flac_fprintf(stderr, "%s: ERROR: sample rate of %u Hz is not supported\n", filenames[i], sample_rate);
 434                         return false;
 435                 }
 436                 if(channels != 1 && channels != 2) {
 437                         flac_fprintf(stderr, "%s: ERROR: # of channels (%u) is not supported, must be 1 or 2\n", filenames[i], channels);
 438                         return false;
 439                 }
 440         }
 441         FLAC__ASSERT(bits_per_sample >= FLAC__MIN_BITS_PER_SAMPLE && bits_per_sample <= FLAC__MAX_BITS_PER_SAMPLE);
 442
 443         if(!grabbag__replaygain_init(sample_rate)) {
 444                 FLAC__ASSERT(0);
 445                 /* double protection */
 446                 flac_fprintf(stderr, "internal error\n");
 447                 return false;
 448         }
 449
 450         if(
 451                 0 == (title_gains = safe_malloc_mul_2op_(sizeof(float), /*times*/num_files)) ||
 452                 0 == (title_peaks = safe_malloc_mul_2op_(sizeof(float), /*times*/num_files))
 453         )
 454                 die("out of memory allocating space for title gains/peaks");
 455
 456         for(i = 0; i < num_files; i++) {
 457                 if(0 != (error = grabbag__replaygain_analyze_file(filenames[i], title_gains+i, title_peaks+i))) {
 458                         flac_fprintf(stderr, "%s: ERROR: during analysis (%s)\n", filenames[i], error);
 459                         free(title_gains);
 460                         free(title_peaks);
 461                         return false;
 462                 }
 463         }
 464         grabbag__replaygain_get_album(&album_gain, &album_peak);
 465
 466         for(i = 0; i < num_files; i++) {
 467                 if(0 != (error = grabbag__replaygain_store_to_file(filenames[i], album_gain, album_peak, title_gains[i], title_peaks[i], preserve_modtime))) {
 468                         flac_fprintf(stderr, "%s: ERROR: writing tags (%s)\n", filenames[i], error);
 469                         free(title_gains);
 470                         free(title_peaks);
 471                         return false;
 472                 }
 473         }
 474
 475         free(title_gains);
 476         free(title_peaks);
 477         return true;
 478 }
 479
 480 FLAC__bool do_shorthand_operation__add_padding(const char *filename, FLAC__Metadata_Chain *chain, unsigned length, FLAC__bool *needs_write)
 481 {
 482         FLAC__StreamMetadata *padding = 0;
 483         FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
 484
 485         if(0 == iterator)
 486                 die("out of memory allocating iterator");
 487
 488         FLAC__metadata_iterator_init(iterator, chain);
 489
 490         while(FLAC__metadata_iterator_next(iterator))
 491                 ;
 492
 493         padding = FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING);
 494         if(0 == padding)
 495                 die("out of memory allocating PADDING block");
 496
 497         padding->length = length;
 498
 499         if(!FLAC__metadata_iterator_insert_block_after(iterator, padding)) {
 500                 print_error_with_chain_status(chain, "%s: ERROR: adding new PADDING block to metadata", filename);
 501                 FLAC__metadata_object_delete(padding);
 502                 FLAC__metadata_iterator_delete(iterator);
 503                 return false;
 504         }
 505
 506         FLAC__metadata_iterator_delete(iterator);
 507         *needs_write = true;
 508         return true;
 509 }
 510
 511 FLAC__bool passes_filter(const CommandLineOptions *options, const FLAC__StreamMetadata *block, unsigned block_number)
 512 {
 513         unsigned i, j;
 514         FLAC__bool matches_number = false, matches_type = false;
 515         FLAC__bool has_block_number_arg = false;
 516
 517         for(i = 0; i < options->args.num_arguments; i++) {
 518                 if(options->args.arguments[i].type == ARG__BLOCK_TYPE || options->args.arguments[i].type == ARG__EXCEPT_BLOCK_TYPE) {
 519                         for(j = 0; j < options->args.arguments[i].value.block_type.num_entries; j++) {
 520                                 if(options->args.arguments[i].value.block_type.entries[j].type == block->type) {
 521                                         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))
 522                                                 matches_type = true;
 523                                 }
 524                         }
 525                 }
 526                 else if(options->args.arguments[i].type == ARG__BLOCK_NUMBER) {
 527                         has_block_number_arg = true;
 528                         for(j = 0; j < options->args.arguments[i].value.block_number.num_entries; j++) {
 529                                 if(options->args.arguments[i].value.block_number.entries[j] == block_number)
 530                                         matches_number = true;
 531                         }
 532                 }
 533         }
 534
 535         if(!has_block_number_arg)
 536                 matches_number = true;
 537
 538         if(options->args.checks.has_block_type) {
 539                 FLAC__ASSERT(!options->args.checks.has_except_block_type);
 540         }
 541         else if(options->args.checks.has_except_block_type)
 542                 matches_type = !matches_type;
 543         else
 544                 matches_type = true;
 545
 546         return matches_number && matches_type;
 547 }
 548
 549 void write_metadata(const char *filename, FLAC__StreamMetadata *block, unsigned block_number, FLAC__bool raw, FLAC__bool hexdump_application)
 550 {
 551         unsigned i, j;
 552
 553 /*@@@ yuck, should do this with a varargs function or something: */
 554 #define PPR if(filename) { if(raw) printf("%s:",filename); else flac_printf("%s:",filename); }
 555         PPR; printf("METADATA block #%u\n", block_number);
 556         PPR; printf("  type: %u (%s)\n", (unsigned)block->type, block->type < FLAC__METADATA_TYPE_UNDEFINED? FLAC__MetadataTypeString[block->type] : "UNKNOWN");
 557         PPR; printf("  is last: %s\n", block->is_last? "true":"false");
 558         PPR; printf("  length: %u\n", block->length);
 559
 560         switch(block->type) {
 561                 case FLAC__METADATA_TYPE_STREAMINFO:
 562                         PPR; printf("  minimum blocksize: %u samples\n", block->data.stream_info.min_blocksize);
 563                         PPR; printf("  maximum blocksize: %u samples\n", block->data.stream_info.max_blocksize);
 564                         PPR; printf("  minimum framesize: %u bytes\n", block->data.stream_info.min_framesize);
 565                         PPR; printf("  maximum framesize: %u bytes\n", block->data.stream_info.max_framesize);
 566                         PPR; printf("  sample_rate: %u Hz\n", block->data.stream_info.sample_rate);
 567                         PPR; printf("  channels: %u\n", block->data.stream_info.channels);
 568                         PPR; printf("  bits-per-sample: %u\n", block->data.stream_info.bits_per_sample);
 569                         PPR; printf("  total samples: %" PRIu64 "\n", block->data.stream_info.total_samples);
 570                         PPR; printf("  MD5 signature: ");
 571                         for(i = 0; i < 16; i++) {
 572                                 printf("%02x", (unsigned)block->data.stream_info.md5sum[i]);
 573                         }
 574                         printf("\n");
 575                         break;
 576                 case FLAC__METADATA_TYPE_PADDING:
 577                         /* nothing to print */
 578                         break;
 579                 case FLAC__METADATA_TYPE_APPLICATION:
 580                         PPR; printf("  application ID: ");
 581                         for(i = 0; i < 4; i++)
 582                                 printf("%02x", block->data.application.id[i]);
 583                         printf("\n");
 584                         PPR; printf("  data contents:\n");
 585                         if(0 != block->data.application.data) {
 586                                 if(hexdump_application)
 587                                         hexdump(filename, block->data.application.data, block->length - FLAC__STREAM_METADATA_HEADER_LENGTH, "    ");
 588                                 else
 589                                         (void) local_fwrite(block->data.application.data, 1, block->length - FLAC__STREAM_METADATA_HEADER_LENGTH, stdout);
 590                         }
 591                         break;
 592                 case FLAC__METADATA_TYPE_SEEKTABLE:
 593                         PPR; printf("  seek points: %u\n", block->data.seek_table.num_points);
 594                         for(i = 0; i < block->data.seek_table.num_points; i++) {
 595                                 if(block->data.seek_table.points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER) {
 596                                         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);
 597                                 }
 598                                 else {
 599                                         PPR; printf("    point %u: PLACEHOLDER\n", i);
 600                                 }
 601                         }
 602                         break;
 603                 case FLAC__METADATA_TYPE_VORBIS_COMMENT:
 604                         PPR; printf("  vendor string: ");
 605                         write_vc_field(0, &block->data.vorbis_comment.vendor_string, raw, stdout);
 606                         PPR; printf("  comments: %u\n", block->data.vorbis_comment.num_comments);
 607                         for(i = 0; i < block->data.vorbis_comment.num_comments; i++) {
 608                                 PPR; printf("    comment[%u]: ", i);
 609                                 write_vc_field(0, &block->data.vorbis_comment.comments[i], raw, stdout);
 610                         }
 611                         break;
 612                 case FLAC__METADATA_TYPE_CUESHEET:
 613                         PPR; printf("  media catalog number: %s\n", block->data.cue_sheet.media_catalog_number);
 614                         PPR; printf("  lead-in: %" PRIu64 "\n", block->data.cue_sheet.lead_in);
 615                         PPR; printf("  is CD: %s\n", block->data.cue_sheet.is_cd? "true":"false");
 616                         PPR; printf("  number of tracks: %u\n", block->data.cue_sheet.num_tracks);
 617                         for(i = 0; i < block->data.cue_sheet.num_tracks; i++) {
 618                                 const FLAC__StreamMetadata_CueSheet_Track *track = block->data.cue_sheet.tracks+i;
 619                                 const FLAC__bool is_last = (i == block->data.cue_sheet.num_tracks-1);
 620                                 const FLAC__bool is_leadout = is_last && track->num_indices == 0;
 621                                 PPR; printf("    track[%u]\n", i);
 622                                 PPR; printf("      offset: %" PRIu64 "\n", track->offset);
 623                                 if(is_last) {
 624                                         PPR; printf("      number: %u (%s)\n", (unsigned)track->number, is_leadout? "LEAD-OUT" : "INVALID");
 625                                 }
 626                                 else {
 627                                         PPR; printf("      number: %u\n", (unsigned)track->number);
 628                                 }
 629                                 if(!is_leadout) {
 630                                         PPR; printf("      ISRC: %s\n", track->isrc);
 631                                         PPR; printf("      type: %s\n", track->type == 1? "DATA" : "AUDIO");
 632                                         PPR; printf("      pre-emphasis: %s\n", track->pre_emphasis? "true":"false");
 633                                         PPR; printf("      number of index points: %u\n", track->num_indices);
 634                                         for(j = 0; j < track->num_indices; j++) {
 635                                                 const FLAC__StreamMetadata_CueSheet_Index *indx = track->indices+j;
 636                                                 PPR; printf("        index[%u]\n", j);
 637                                                 PPR; printf("          offset: %" PRIu64 "\n", indx->offset);
 638                                                 PPR; printf("          number: %u\n", (unsigned)indx->number);
 639                                         }
 640                                 }
 641                         }
 642                         break;
 643                 case FLAC__METADATA_TYPE_PICTURE:
 644                         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");
 645                         PPR; printf("  MIME type: %s\n", block->data.picture.mime_type);
 646                         PPR; printf("  description: %s\n", block->data.picture.description);
 647                         PPR; printf("  width: %u\n", (unsigned)block->data.picture.width);
 648                         PPR; printf("  height: %u\n", (unsigned)block->data.picture.height);
 649                         PPR; printf("  depth: %u\n", (unsigned)block->data.picture.depth);
 650                         PPR; printf("  colors: %u%s\n", (unsigned)block->data.picture.colors, block->data.picture.colors? "" : " (unindexed)");
 651                         PPR; printf("  data length: %u\n", (unsigned)block->data.picture.data_length);
 652                         PPR; printf("  data:\n");
 653                         if(0 != block->data.picture.data)
 654                                 hexdump(filename, block->data.picture.data, block->data.picture.data_length, "    ");
 655                         break;
 656                 default:
 657                         PPR; printf("  data contents:\n");
 658                         if(0 != block->data.unknown.data)
 659                                 hexdump(filename, block->data.unknown.data, block->length, "    ");
 660                         break;
 661         }
 662 #undef PPR
 663 }