1 /* libFLAC - Free Lossless Audio Codec library
2 * Copyright (C) 2001,2002,2003 Josh Coalson
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library 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 GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
23 #include "private/metadata.h"
25 #include "FLAC/assert.h"
28 /****************************************************************************
32 ***************************************************************************/
34 static FLAC__bool copy_bytes_(FLAC__byte **to, const FLAC__byte *from, unsigned bytes)
36 if(bytes > 0 && 0 != from) {
38 if(0 == (x = (FLAC__byte*)malloc(bytes)))
40 memcpy(x, from, bytes);
44 FLAC__ASSERT(0 == from);
45 FLAC__ASSERT(bytes == 0);
51 static FLAC__bool copy_vcentry_(FLAC__StreamMetadata_VorbisComment_Entry *to, const FLAC__StreamMetadata_VorbisComment_Entry *from)
53 to->length = from->length;
54 if(0 == from->entry) {
55 FLAC__ASSERT(from->length == 0);
60 FLAC__ASSERT(from->length > 0);
61 if(0 == (x = (FLAC__byte*)malloc(from->length)))
63 memcpy(x, from->entry, from->length);
69 static FLAC__bool copy_track_(FLAC__StreamMetadata_CueSheet_Track *to, const FLAC__StreamMetadata_CueSheet_Track *from)
71 memcpy(to, from, sizeof(FLAC__StreamMetadata_CueSheet_Track));
72 if(0 == from->indices) {
73 FLAC__ASSERT(from->num_indices == 0);
76 FLAC__StreamMetadata_CueSheet_Index *x;
77 FLAC__ASSERT(from->num_indices > 0);
78 if(0 == (x = (FLAC__StreamMetadata_CueSheet_Index*)malloc(from->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index))))
80 memcpy(x, from->indices, from->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index));
86 static void seektable_calculate_length_(FLAC__StreamMetadata *object)
88 FLAC__ASSERT(0 != object);
89 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
91 object->length = object->data.seek_table.num_points * FLAC__STREAM_METADATA_SEEKPOINT_LENGTH;
94 static FLAC__StreamMetadata_SeekPoint *seekpoint_array_new_(unsigned num_points)
96 FLAC__StreamMetadata_SeekPoint *object_array;
98 FLAC__ASSERT(num_points > 0);
100 object_array = (FLAC__StreamMetadata_SeekPoint*)malloc(num_points * sizeof(FLAC__StreamMetadata_SeekPoint));
102 if(0 != object_array) {
104 for(i = 0; i < num_points; i++) {
105 object_array[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
106 object_array[i].stream_offset = 0;
107 object_array[i].frame_samples = 0;
114 static void vorbiscomment_calculate_length_(FLAC__StreamMetadata *object)
118 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
120 object->length = (FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN) / 8;
121 object->length += object->data.vorbis_comment.vendor_string.length;
122 object->length += (FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN) / 8;
123 for(i = 0; i < object->data.vorbis_comment.num_comments; i++) {
124 object->length += (FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN / 8);
125 object->length += object->data.vorbis_comment.comments[i].length;
129 static FLAC__StreamMetadata_VorbisComment_Entry *vorbiscomment_entry_array_new_(unsigned num_comments)
131 FLAC__ASSERT(num_comments > 0);
133 return (FLAC__StreamMetadata_VorbisComment_Entry*)calloc(num_comments, sizeof(FLAC__StreamMetadata_VorbisComment_Entry));
136 static void vorbiscomment_entry_array_delete_(FLAC__StreamMetadata_VorbisComment_Entry *object_array, unsigned num_comments)
140 FLAC__ASSERT(0 != object_array && num_comments > 0);
142 for(i = 0; i < num_comments; i++)
143 if(0 != object_array[i].entry)
144 free(object_array[i].entry);
146 if(0 != object_array)
150 static FLAC__StreamMetadata_VorbisComment_Entry *vorbiscomment_entry_array_copy_(const FLAC__StreamMetadata_VorbisComment_Entry *object_array, unsigned num_comments)
152 FLAC__StreamMetadata_VorbisComment_Entry *return_array;
154 FLAC__ASSERT(0 != object_array);
155 FLAC__ASSERT(num_comments > 0);
157 return_array = vorbiscomment_entry_array_new_(num_comments);
159 if(0 != return_array) {
162 for(i = 0; i < num_comments; i++) {
163 if(!copy_vcentry_(return_array+i, object_array+i)) {
164 vorbiscomment_entry_array_delete_(return_array, num_comments);
173 static FLAC__bool vorbiscomment_set_entry_(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry *dest, const FLAC__StreamMetadata_VorbisComment_Entry *src, FLAC__bool copy)
177 FLAC__ASSERT(0 != object);
178 FLAC__ASSERT(0 != dest);
179 FLAC__ASSERT(0 != src);
180 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
181 FLAC__ASSERT((0 != src->entry && src->length > 0) || (0 == src->entry && src->length == 0 && copy == false));
185 /* do the copy first so that if we fail we leave the object untouched */
187 if(!copy_vcentry_(dest, src))
197 vorbiscomment_calculate_length_(object);
201 static void cuesheet_calculate_length_(FLAC__StreamMetadata *object)
205 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
208 FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN +
209 FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN +
210 FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN +
211 FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN +
212 FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN
215 object->length += object->data.cue_sheet.num_tracks * (
216 FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN +
217 FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN +
218 FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN +
219 FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN +
220 FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN +
221 FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN +
222 FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN
225 for(i = 0; i < object->data.cue_sheet.num_tracks; i++) {
226 object->length += object->data.cue_sheet.tracks[i].num_indices * (
227 FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN +
228 FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN +
229 FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN
234 static FLAC__StreamMetadata_CueSheet_Index *cuesheet_track_index_array_new_(unsigned num_indices)
236 FLAC__ASSERT(num_indices > 0);
238 return (FLAC__StreamMetadata_CueSheet_Index*)calloc(num_indices, sizeof(FLAC__StreamMetadata_CueSheet_Index));
241 static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_new_(unsigned num_tracks)
243 FLAC__ASSERT(num_tracks > 0);
245 return (FLAC__StreamMetadata_CueSheet_Track*)calloc(num_tracks, sizeof(FLAC__StreamMetadata_CueSheet_Track));
248 static void cuesheet_track_array_delete_(FLAC__StreamMetadata_CueSheet_Track *object_array, unsigned num_tracks)
252 FLAC__ASSERT(0 != object_array && num_tracks > 0);
254 for(i = 0; i < num_tracks; i++) {
255 if(0 != object_array[i].indices) {
256 FLAC__ASSERT(object_array[i].num_indices > 0);
257 free(object_array[i].indices);
261 if(0 != object_array)
265 static FLAC__StreamMetadata_CueSheet_Track *cuesheet_track_array_copy_(const FLAC__StreamMetadata_CueSheet_Track *object_array, unsigned num_tracks)
267 FLAC__StreamMetadata_CueSheet_Track *return_array;
269 FLAC__ASSERT(0 != object_array);
270 FLAC__ASSERT(num_tracks > 0);
272 return_array = cuesheet_track_array_new_(num_tracks);
274 if(0 != return_array) {
277 for(i = 0; i < num_tracks; i++) {
278 if(!copy_track_(return_array+i, object_array+i)) {
279 cuesheet_track_array_delete_(return_array, num_tracks);
288 static FLAC__bool cuesheet_set_track_(FLAC__StreamMetadata *object, FLAC__StreamMetadata_CueSheet_Track *dest, const FLAC__StreamMetadata_CueSheet_Track *src, FLAC__bool copy)
290 FLAC__StreamMetadata_CueSheet_Index *save;
292 FLAC__ASSERT(0 != object);
293 FLAC__ASSERT(0 != dest);
294 FLAC__ASSERT(0 != src);
295 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
296 FLAC__ASSERT((0 != src->indices && src->num_indices > 0) || (0 == src->indices && src->num_indices == 0));
298 save = dest->indices;
300 /* do the copy first so that if we fail we leave the object untouched */
302 if(!copy_track_(dest, src))
312 cuesheet_calculate_length_(object);
317 /****************************************************************************
319 * Metadata object routines
321 ***************************************************************************/
323 FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_new(FLAC__MetadataType type)
325 FLAC__StreamMetadata *object = (FLAC__StreamMetadata*)calloc(1, sizeof(FLAC__StreamMetadata));
327 object->is_last = false;
330 case FLAC__METADATA_TYPE_STREAMINFO:
331 object->length = FLAC__STREAM_METADATA_STREAMINFO_LENGTH;
333 case FLAC__METADATA_TYPE_PADDING:
334 /* calloc() took care of this for us:
338 case FLAC__METADATA_TYPE_APPLICATION:
339 object->length = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8;
340 /* calloc() took care of this for us:
341 object->data.application.data = 0;
344 case FLAC__METADATA_TYPE_SEEKTABLE:
345 /* calloc() took care of this for us:
347 object->data.seek_table.num_points = 0;
348 object->data.seek_table.points = 0;
351 case FLAC__METADATA_TYPE_VORBIS_COMMENT:
353 object->data.vorbis_comment.vendor_string.length = (unsigned)strlen(FLAC__VENDOR_STRING);
354 if(!copy_bytes_(&object->data.vorbis_comment.vendor_string.entry, (const FLAC__byte*)FLAC__VENDOR_STRING, object->data.vorbis_comment.vendor_string.length)) {
358 vorbiscomment_calculate_length_(object);
361 case FLAC__METADATA_TYPE_CUESHEET:
362 cuesheet_calculate_length_(object);
365 /* calloc() took care of this for us:
367 object->data.unknown.data = 0;
376 FLAC_API FLAC__StreamMetadata *FLAC__metadata_object_clone(const FLAC__StreamMetadata *object)
378 FLAC__StreamMetadata *to;
380 FLAC__ASSERT(0 != object);
382 if(0 != (to = FLAC__metadata_object_new(object->type))) {
383 to->is_last = object->is_last;
384 to->type = object->type;
385 to->length = object->length;
387 case FLAC__METADATA_TYPE_STREAMINFO:
388 memcpy(&to->data.stream_info, &object->data.stream_info, sizeof(FLAC__StreamMetadata_StreamInfo));
390 case FLAC__METADATA_TYPE_PADDING:
392 case FLAC__METADATA_TYPE_APPLICATION:
393 memcpy(&to->data.application.id, &object->data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8);
394 if(!copy_bytes_(&to->data.application.data, object->data.application.data, object->length - FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8)) {
395 FLAC__metadata_object_delete(to);
399 case FLAC__METADATA_TYPE_SEEKTABLE:
400 to->data.seek_table.num_points = object->data.seek_table.num_points;
401 if(!copy_bytes_((FLAC__byte**)&to->data.seek_table.points, (FLAC__byte*)object->data.seek_table.points, object->data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint))) {
402 FLAC__metadata_object_delete(to);
406 case FLAC__METADATA_TYPE_VORBIS_COMMENT:
407 if(0 != to->data.vorbis_comment.vendor_string.entry) {
408 free(to->data.vorbis_comment.vendor_string.entry);
409 to->data.vorbis_comment.vendor_string.entry = 0;
411 if(!copy_vcentry_(&to->data.vorbis_comment.vendor_string, &object->data.vorbis_comment.vendor_string)) {
412 FLAC__metadata_object_delete(to);
415 if(object->data.vorbis_comment.num_comments == 0) {
416 FLAC__ASSERT(0 == object->data.vorbis_comment.comments);
417 to->data.vorbis_comment.comments = 0;
420 FLAC__ASSERT(0 != object->data.vorbis_comment.comments);
421 to->data.vorbis_comment.comments = vorbiscomment_entry_array_copy_(object->data.vorbis_comment.comments, object->data.vorbis_comment.num_comments);
422 if(0 == to->data.vorbis_comment.comments) {
423 FLAC__metadata_object_delete(to);
427 to->data.vorbis_comment.num_comments = object->data.vorbis_comment.num_comments;
429 case FLAC__METADATA_TYPE_CUESHEET:
430 memcpy(&to->data.cue_sheet, &object->data.cue_sheet, sizeof(FLAC__StreamMetadata_CueSheet));
431 if(object->data.cue_sheet.num_tracks == 0) {
432 FLAC__ASSERT(0 == object->data.cue_sheet.tracks);
435 FLAC__ASSERT(0 != object->data.cue_sheet.tracks);
436 to->data.cue_sheet.tracks = cuesheet_track_array_copy_(object->data.cue_sheet.tracks, object->data.cue_sheet.num_tracks);
437 if(0 == to->data.cue_sheet.tracks) {
438 FLAC__metadata_object_delete(to);
444 if(!copy_bytes_(&to->data.unknown.data, object->data.unknown.data, object->length)) {
445 FLAC__metadata_object_delete(to);
455 void FLAC__metadata_object_delete_data(FLAC__StreamMetadata *object)
457 FLAC__ASSERT(0 != object);
459 switch(object->type) {
460 case FLAC__METADATA_TYPE_STREAMINFO:
461 case FLAC__METADATA_TYPE_PADDING:
463 case FLAC__METADATA_TYPE_APPLICATION:
464 if(0 != object->data.application.data) {
465 free(object->data.application.data);
466 object->data.application.data = 0;
469 case FLAC__METADATA_TYPE_SEEKTABLE:
470 if(0 != object->data.seek_table.points) {
471 free(object->data.seek_table.points);
472 object->data.seek_table.points = 0;
475 case FLAC__METADATA_TYPE_VORBIS_COMMENT:
476 if(0 != object->data.vorbis_comment.vendor_string.entry) {
477 free(object->data.vorbis_comment.vendor_string.entry);
478 object->data.vorbis_comment.vendor_string.entry = 0;
480 if(0 != object->data.vorbis_comment.comments) {
481 FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0);
482 vorbiscomment_entry_array_delete_(object->data.vorbis_comment.comments, object->data.vorbis_comment.num_comments);
485 case FLAC__METADATA_TYPE_CUESHEET:
486 if(0 != object->data.cue_sheet.tracks) {
487 FLAC__ASSERT(object->data.cue_sheet.num_tracks > 0);
488 cuesheet_track_array_delete_(object->data.cue_sheet.tracks, object->data.cue_sheet.num_tracks);
492 if(0 != object->data.unknown.data) {
493 free(object->data.unknown.data);
494 object->data.unknown.data = 0;
500 FLAC_API void FLAC__metadata_object_delete(FLAC__StreamMetadata *object)
502 FLAC__metadata_object_delete_data(object);
506 static FLAC__bool compare_block_data_streaminfo_(const FLAC__StreamMetadata_StreamInfo *block1, const FLAC__StreamMetadata_StreamInfo *block2)
508 if(block1->min_blocksize != block2->min_blocksize)
510 if(block1->max_blocksize != block2->max_blocksize)
512 if(block1->min_framesize != block2->min_framesize)
514 if(block1->max_framesize != block2->max_framesize)
516 if(block1->sample_rate != block2->sample_rate)
518 if(block1->channels != block2->channels)
520 if(block1->bits_per_sample != block2->bits_per_sample)
522 if(block1->total_samples != block2->total_samples)
524 if(0 != memcmp(block1->md5sum, block2->md5sum, 16))
529 static FLAC__bool compare_block_data_application_(const FLAC__StreamMetadata_Application *block1, const FLAC__StreamMetadata_Application *block2, unsigned block_length)
531 FLAC__ASSERT(0 != block1);
532 FLAC__ASSERT(0 != block2);
533 FLAC__ASSERT(block_length >= sizeof(block1->id));
535 if(0 != memcmp(block1->id, block2->id, sizeof(block1->id)))
537 if(0 != block1->data && 0 != block2->data)
538 return 0 == memcmp(block1->data, block2->data, block_length - sizeof(block1->id));
540 return block1->data == block2->data;
543 static FLAC__bool compare_block_data_seektable_(const FLAC__StreamMetadata_SeekTable *block1, const FLAC__StreamMetadata_SeekTable *block2)
547 FLAC__ASSERT(0 != block1);
548 FLAC__ASSERT(0 != block2);
550 if(block1->num_points != block2->num_points)
553 if(0 != block1->points && 0 != block2->points) {
554 for(i = 0; i < block1->num_points; i++) {
555 if(block1->points[i].sample_number != block2->points[i].sample_number)
557 if(block1->points[i].stream_offset != block2->points[i].stream_offset)
559 if(block1->points[i].frame_samples != block2->points[i].frame_samples)
565 return block1->points == block2->points;
568 static FLAC__bool compare_block_data_vorbiscomment_(const FLAC__StreamMetadata_VorbisComment *block1, const FLAC__StreamMetadata_VorbisComment *block2)
572 if(block1->vendor_string.length != block2->vendor_string.length)
575 if(0 != block1->vendor_string.entry && 0 != block2->vendor_string.entry) {
576 if(0 != memcmp(block1->vendor_string.entry, block2->vendor_string.entry, block1->vendor_string.length))
579 else if(block1->vendor_string.entry != block2->vendor_string.entry)
582 if(block1->num_comments != block2->num_comments)
585 for(i = 0; i < block1->num_comments; i++) {
586 if(0 != block1->comments[i].entry && 0 != block2->comments[i].entry) {
587 if(0 != memcmp(block1->comments[i].entry, block2->comments[i].entry, block1->comments[i].length))
590 else if(block1->comments[i].entry != block2->comments[i].entry)
596 static FLAC__bool compare_block_data_cuesheet_(const FLAC__StreamMetadata_CueSheet *block1, const FLAC__StreamMetadata_CueSheet *block2)
600 if(0 != strcmp(block1->media_catalog_number, block2->media_catalog_number))
603 if(block1->lead_in != block2->lead_in)
606 if(block1->is_cd != block2->is_cd)
609 if(block1->num_tracks != block2->num_tracks)
612 if(0 != block1->tracks && 0 != block2->tracks) {
613 FLAC__ASSERT(block1->num_tracks > 0);
614 for(i = 0; i < block1->num_tracks; i++) {
615 if(block1->tracks[i].offset != block2->tracks[i].offset)
617 if(block1->tracks[i].number != block2->tracks[i].number)
619 if(0 != memcmp(block1->tracks[i].isrc, block2->tracks[i].isrc, sizeof(block1->tracks[i].isrc)))
621 if(block1->tracks[i].type != block2->tracks[i].type)
623 if(block1->tracks[i].pre_emphasis != block2->tracks[i].pre_emphasis)
625 if(block1->tracks[i].num_indices != block2->tracks[i].num_indices)
627 if(0 != block1->tracks[i].indices && 0 != block2->tracks[i].indices) {
628 FLAC__ASSERT(block1->tracks[i].num_indices > 0);
629 for(j = 0; j < block1->tracks[i].num_indices; j++) {
630 if(block1->tracks[i].indices[j].offset != block2->tracks[i].indices[j].offset)
632 if(block1->tracks[i].indices[j].number != block2->tracks[i].indices[j].number)
636 else if(block1->tracks[i].indices != block2->tracks[i].indices)
640 else if(block1->tracks != block2->tracks)
645 static FLAC__bool compare_block_data_unknown_(const FLAC__StreamMetadata_Unknown *block1, const FLAC__StreamMetadata_Unknown *block2, unsigned block_length)
647 FLAC__ASSERT(0 != block1);
648 FLAC__ASSERT(0 != block2);
650 if(0 != block1->data && 0 != block2->data)
651 return 0 == memcmp(block1->data, block2->data, block_length);
653 return block1->data == block2->data;
656 FLAC_API FLAC__bool FLAC__metadata_object_is_equal(const FLAC__StreamMetadata *block1, const FLAC__StreamMetadata *block2)
658 FLAC__ASSERT(0 != block1);
659 FLAC__ASSERT(0 != block2);
661 if(block1->type != block2->type) {
664 if(block1->is_last != block2->is_last) {
667 if(block1->length != block2->length) {
670 switch(block1->type) {
671 case FLAC__METADATA_TYPE_STREAMINFO:
672 return compare_block_data_streaminfo_(&block1->data.stream_info, &block2->data.stream_info);
673 case FLAC__METADATA_TYPE_PADDING:
674 return true; /* we don't compare the padding guts */
675 case FLAC__METADATA_TYPE_APPLICATION:
676 return compare_block_data_application_(&block1->data.application, &block2->data.application, block1->length);
677 case FLAC__METADATA_TYPE_SEEKTABLE:
678 return compare_block_data_seektable_(&block1->data.seek_table, &block2->data.seek_table);
679 case FLAC__METADATA_TYPE_VORBIS_COMMENT:
680 return compare_block_data_vorbiscomment_(&block1->data.vorbis_comment, &block2->data.vorbis_comment);
681 case FLAC__METADATA_TYPE_CUESHEET:
682 return compare_block_data_cuesheet_(&block1->data.cue_sheet, &block2->data.cue_sheet);
684 return compare_block_data_unknown_(&block1->data.unknown, &block2->data.unknown, block1->length);
688 FLAC_API FLAC__bool FLAC__metadata_object_application_set_data(FLAC__StreamMetadata *object, FLAC__byte *data, unsigned length, FLAC__bool copy)
692 FLAC__ASSERT(0 != object);
693 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_APPLICATION);
694 FLAC__ASSERT((0 != data && length > 0) || (0 == data && length == 0 && copy == false));
696 save = object->data.application.data;
698 /* do the copy first so that if we fail we leave the object untouched */
700 if(!copy_bytes_(&object->data.application.data, data, length))
704 object->data.application.data = data;
710 object->length = FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8 + length;
714 FLAC_API FLAC__bool FLAC__metadata_object_seektable_resize_points(FLAC__StreamMetadata *object, unsigned new_num_points)
716 FLAC__ASSERT(0 != object);
717 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
719 if(0 == object->data.seek_table.points) {
720 FLAC__ASSERT(object->data.seek_table.num_points == 0);
721 if(0 == new_num_points)
723 else if(0 == (object->data.seek_table.points = seekpoint_array_new_(new_num_points)))
727 const unsigned old_size = object->data.seek_table.num_points * sizeof(FLAC__StreamMetadata_SeekPoint);
728 const unsigned new_size = new_num_points * sizeof(FLAC__StreamMetadata_SeekPoint);
730 FLAC__ASSERT(object->data.seek_table.num_points > 0);
733 free(object->data.seek_table.points);
734 object->data.seek_table.points = 0;
736 else if(0 == (object->data.seek_table.points = (FLAC__StreamMetadata_SeekPoint*)realloc(object->data.seek_table.points, new_size)))
739 /* if growing, set new elements to placeholders */
740 if(new_size > old_size) {
742 for(i = object->data.seek_table.num_points; i < new_num_points; i++) {
743 object->data.seek_table.points[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
744 object->data.seek_table.points[i].stream_offset = 0;
745 object->data.seek_table.points[i].frame_samples = 0;
750 object->data.seek_table.num_points = new_num_points;
752 seektable_calculate_length_(object);
756 FLAC_API void FLAC__metadata_object_seektable_set_point(FLAC__StreamMetadata *object, unsigned point_num, FLAC__StreamMetadata_SeekPoint point)
758 FLAC__ASSERT(0 != object);
759 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
760 FLAC__ASSERT(point_num < object->data.seek_table.num_points);
762 object->data.seek_table.points[point_num] = point;
765 FLAC_API FLAC__bool FLAC__metadata_object_seektable_insert_point(FLAC__StreamMetadata *object, unsigned point_num, FLAC__StreamMetadata_SeekPoint point)
769 FLAC__ASSERT(0 != object);
770 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
771 FLAC__ASSERT(point_num <= object->data.seek_table.num_points);
773 if(!FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points+1))
776 /* move all points >= point_num forward one space */
777 for(i = (int)object->data.seek_table.num_points-1; i > (int)point_num; i--)
778 object->data.seek_table.points[i] = object->data.seek_table.points[i-1];
780 FLAC__metadata_object_seektable_set_point(object, point_num, point);
781 seektable_calculate_length_(object);
785 FLAC_API FLAC__bool FLAC__metadata_object_seektable_delete_point(FLAC__StreamMetadata *object, unsigned point_num)
789 FLAC__ASSERT(0 != object);
790 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
791 FLAC__ASSERT(point_num < object->data.seek_table.num_points);
793 /* move all points > point_num backward one space */
794 for(i = point_num; i < object->data.seek_table.num_points-1; i++)
795 object->data.seek_table.points[i] = object->data.seek_table.points[i+1];
797 return FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points-1);
800 FLAC_API FLAC__bool FLAC__metadata_object_seektable_is_legal(const FLAC__StreamMetadata *object)
802 FLAC__ASSERT(0 != object);
803 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
805 return FLAC__format_seektable_is_legal(&object->data.seek_table);
808 FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_placeholders(FLAC__StreamMetadata *object, unsigned num)
810 FLAC__ASSERT(0 != object);
811 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
814 /* WATCHOUT: we rely on the fact that growing the array adds PLACEHOLDERS at the end */
815 return FLAC__metadata_object_seektable_resize_points(object, object->data.seek_table.num_points + num);
820 FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_point(FLAC__StreamMetadata *object, FLAC__uint64 sample_number)
822 FLAC__StreamMetadata_SeekTable *seek_table;
824 FLAC__ASSERT(0 != object);
825 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
827 seek_table = &object->data.seek_table;
829 if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + 1))
832 seek_table->points[seek_table->num_points - 1].sample_number = sample_number;
833 seek_table->points[seek_table->num_points - 1].stream_offset = 0;
834 seek_table->points[seek_table->num_points - 1].frame_samples = 0;
839 FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_points(FLAC__StreamMetadata *object, FLAC__uint64 sample_numbers[], unsigned num)
841 FLAC__ASSERT(0 != object);
842 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
843 FLAC__ASSERT(0 != sample_numbers || num == 0);
846 FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table;
849 i = seek_table->num_points;
851 if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + num))
854 for(j = 0; j < num; i++, j++) {
855 seek_table->points[i].sample_number = sample_numbers[j];
856 seek_table->points[i].stream_offset = 0;
857 seek_table->points[i].frame_samples = 0;
864 FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_append_spaced_points(FLAC__StreamMetadata *object, unsigned num, FLAC__uint64 total_samples)
866 FLAC__ASSERT(0 != object);
867 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
868 FLAC__ASSERT(total_samples > 0);
871 FLAC__StreamMetadata_SeekTable *seek_table = &object->data.seek_table;
874 i = seek_table->num_points;
876 if(!FLAC__metadata_object_seektable_resize_points(object, seek_table->num_points + num))
879 for(j = 0; j < num; i++, j++) {
880 seek_table->points[i].sample_number = total_samples * (FLAC__uint64)j / (FLAC__uint64)num;
881 seek_table->points[i].stream_offset = 0;
882 seek_table->points[i].frame_samples = 0;
889 FLAC_API FLAC__bool FLAC__metadata_object_seektable_template_sort(FLAC__StreamMetadata *object, FLAC__bool compact)
893 FLAC__ASSERT(0 != object);
894 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_SEEKTABLE);
896 unique = FLAC__format_seektable_sort(&object->data.seek_table);
898 return !compact || FLAC__metadata_object_seektable_resize_points(object, unique);
901 FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_vendor_string(FLAC__StreamMetadata *object, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy)
903 return vorbiscomment_set_entry_(object, &object->data.vorbis_comment.vendor_string, &entry, copy);
906 FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_resize_comments(FLAC__StreamMetadata *object, unsigned new_num_comments)
908 FLAC__ASSERT(0 != object);
909 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
911 if(0 == object->data.vorbis_comment.comments) {
912 FLAC__ASSERT(object->data.vorbis_comment.num_comments == 0);
913 if(0 == new_num_comments)
915 else if(0 == (object->data.vorbis_comment.comments = vorbiscomment_entry_array_new_(new_num_comments)))
919 const unsigned old_size = object->data.vorbis_comment.num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry);
920 const unsigned new_size = new_num_comments * sizeof(FLAC__StreamMetadata_VorbisComment_Entry);
922 FLAC__ASSERT(object->data.vorbis_comment.num_comments > 0);
924 /* if shrinking, free the truncated entries */
925 if(new_num_comments < object->data.vorbis_comment.num_comments) {
927 for(i = new_num_comments; i < object->data.vorbis_comment.num_comments; i++)
928 if(0 != object->data.vorbis_comment.comments[i].entry)
929 free(object->data.vorbis_comment.comments[i].entry);
933 free(object->data.vorbis_comment.comments);
934 object->data.vorbis_comment.comments = 0;
936 else if(0 == (object->data.vorbis_comment.comments = (FLAC__StreamMetadata_VorbisComment_Entry*)realloc(object->data.vorbis_comment.comments, new_size)))
939 /* if growing, zero all the length/pointers of new elements */
940 if(new_size > old_size)
941 memset(object->data.vorbis_comment.comments + object->data.vorbis_comment.num_comments, 0, new_size - old_size);
944 object->data.vorbis_comment.num_comments = new_num_comments;
946 vorbiscomment_calculate_length_(object);
950 FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_set_comment(FLAC__StreamMetadata *object, unsigned comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy)
952 FLAC__ASSERT(0 != object);
953 FLAC__ASSERT(comment_num < object->data.vorbis_comment.num_comments);
955 return vorbiscomment_set_entry_(object, &object->data.vorbis_comment.comments[comment_num], &entry, copy);
958 FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_insert_comment(FLAC__StreamMetadata *object, unsigned comment_num, FLAC__StreamMetadata_VorbisComment_Entry entry, FLAC__bool copy)
960 FLAC__StreamMetadata_VorbisComment *vc;
962 FLAC__ASSERT(0 != object);
963 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
964 FLAC__ASSERT(comment_num <= object->data.vorbis_comment.num_comments);
966 vc = &object->data.vorbis_comment;
968 if(!FLAC__metadata_object_vorbiscomment_resize_comments(object, vc->num_comments+1))
971 /* move all comments >= comment_num forward one space */
972 memmove(&vc->comments[comment_num+1], &vc->comments[comment_num], sizeof(FLAC__StreamMetadata_VorbisComment_Entry)*(vc->num_comments-1-comment_num));
973 vc->comments[comment_num].length = 0;
974 vc->comments[comment_num].entry = 0;
976 return FLAC__metadata_object_vorbiscomment_set_comment(object, comment_num, entry, copy);
979 FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_delete_comment(FLAC__StreamMetadata *object, unsigned comment_num)
981 FLAC__StreamMetadata_VorbisComment *vc;
983 FLAC__ASSERT(0 != object);
984 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
985 FLAC__ASSERT(comment_num < object->data.vorbis_comment.num_comments);
987 vc = &object->data.vorbis_comment;
989 /* free the comment at comment_num */
990 if(0 != vc->comments[comment_num].entry)
991 free(vc->comments[comment_num].entry);
993 /* move all comments > comment_num backward one space */
994 memmove(&vc->comments[comment_num], &vc->comments[comment_num+1], sizeof(FLAC__StreamMetadata_VorbisComment_Entry)*(vc->num_comments-comment_num-1));
995 vc->comments[vc->num_comments-1].length = 0;
996 vc->comments[vc->num_comments-1].entry = 0;
998 return FLAC__metadata_object_vorbiscomment_resize_comments(object, vc->num_comments-1);
1001 FLAC_API FLAC__bool FLAC__metadata_object_vorbiscomment_entry_matches(const FLAC__StreamMetadata_VorbisComment_Entry *entry, const char *field_name, unsigned field_name_length)
1003 const FLAC__byte *eq = (FLAC__byte*)memchr(entry->entry, '=', entry->length);
1004 #if defined _MSC_VER || defined __MINGW32__
1005 #define FLAC__STRNCASECMP strnicmp
1007 #define FLAC__STRNCASECMP strncasecmp
1009 return (0 != eq && (unsigned)(eq-entry->entry) == field_name_length && 0 == FLAC__STRNCASECMP(field_name, (const char *)entry->entry, field_name_length));
1010 #undef FLAC__STRNCASECMP
1013 FLAC_API int FLAC__metadata_object_vorbiscomment_find_entry_from(const FLAC__StreamMetadata *object, unsigned offset, const char *field_name)
1015 const unsigned field_name_length = strlen(field_name);
1018 FLAC__ASSERT(0 != object);
1019 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
1021 for(i = offset; i < object->data.vorbis_comment.num_comments; i++) {
1022 if(FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments + i, field_name, field_name_length))
1029 FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entry_matching(FLAC__StreamMetadata *object, const char *field_name)
1031 const unsigned field_name_length = strlen(field_name);
1034 FLAC__ASSERT(0 != object);
1035 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
1037 for(i = 0; i < object->data.vorbis_comment.num_comments; i++) {
1038 if(FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments + i, field_name, field_name_length)) {
1039 if(!FLAC__metadata_object_vorbiscomment_delete_comment(object, i))
1049 FLAC_API int FLAC__metadata_object_vorbiscomment_remove_entries_matching(FLAC__StreamMetadata *object, const char *field_name)
1051 FLAC__bool ok = true;
1052 unsigned matching = 0;
1053 const unsigned field_name_length = strlen(field_name);
1056 FLAC__ASSERT(0 != object);
1057 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
1059 /* must delete from end to start otherwise it will interfere with our iteration */
1060 for(i = (int)object->data.vorbis_comment.num_comments - 1; ok && i >= 0; i--) {
1061 if(FLAC__metadata_object_vorbiscomment_entry_matches(object->data.vorbis_comment.comments + i, field_name, field_name_length)) {
1063 ok &= FLAC__metadata_object_vorbiscomment_delete_comment(object, (unsigned)i);
1067 return ok? (int)matching : -1;
1070 FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_new()
1072 return (FLAC__StreamMetadata_CueSheet_Track*)calloc(1, sizeof(FLAC__StreamMetadata_CueSheet_Track));
1075 FLAC_API FLAC__StreamMetadata_CueSheet_Track *FLAC__metadata_object_cuesheet_track_clone(const FLAC__StreamMetadata_CueSheet_Track *object)
1077 FLAC__StreamMetadata_CueSheet_Track *to;
1079 FLAC__ASSERT(0 != object);
1081 if(0 != (to = FLAC__metadata_object_cuesheet_track_new())) {
1082 if(!copy_track_(to, object)) {
1083 FLAC__metadata_object_cuesheet_track_delete(to);
1091 void FLAC__metadata_object_cuesheet_track_delete_data(FLAC__StreamMetadata_CueSheet_Track *object)
1093 FLAC__ASSERT(0 != object);
1095 if(0 != object->indices) {
1096 FLAC__ASSERT(object->num_indices > 0);
1097 free(object->indices);
1101 FLAC_API void FLAC__metadata_object_cuesheet_track_delete(FLAC__StreamMetadata_CueSheet_Track *object)
1103 FLAC__metadata_object_cuesheet_track_delete_data(object);
1107 FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_resize_indices(FLAC__StreamMetadata *object, unsigned track_num, unsigned new_num_indices)
1109 FLAC__StreamMetadata_CueSheet_Track *track;
1110 FLAC__ASSERT(0 != object);
1111 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
1112 FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
1114 track = &object->data.cue_sheet.tracks[track_num];
1116 if(0 == track->indices) {
1117 FLAC__ASSERT(track->num_indices == 0);
1118 if(0 == new_num_indices)
1120 else if(0 == (track->indices = cuesheet_track_index_array_new_(new_num_indices)))
1124 const unsigned old_size = track->num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index);
1125 const unsigned new_size = new_num_indices * sizeof(FLAC__StreamMetadata_CueSheet_Index);
1127 FLAC__ASSERT(track->num_indices > 0);
1130 free(track->indices);
1133 else if(0 == (track->indices = (FLAC__StreamMetadata_CueSheet_Index*)realloc(track->indices, new_size)))
1136 /* if growing, zero all the lengths/pointers of new elements */
1137 if(new_size > old_size)
1138 memset(track->indices + track->num_indices, 0, new_size - old_size);
1141 track->num_indices = new_num_indices;
1143 cuesheet_calculate_length_(object);
1147 FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num, FLAC__StreamMetadata_CueSheet_Index index)
1149 FLAC__StreamMetadata_CueSheet_Track *track;
1151 FLAC__ASSERT(0 != object);
1152 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
1153 FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
1154 FLAC__ASSERT(index_num <= object->data.cue_sheet.tracks[track_num].num_indices);
1156 track = &object->data.cue_sheet.tracks[track_num];
1158 if(!FLAC__metadata_object_cuesheet_track_resize_indices(object, track_num, track->num_indices+1))
1161 /* move all indices >= index_num forward one space */
1162 memmove(&track->indices[index_num+1], &track->indices[index_num], sizeof(FLAC__StreamMetadata_CueSheet_Index)*(track->num_indices-1-index_num));
1164 track->indices[index_num] = index;
1165 cuesheet_calculate_length_(object);
1169 FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_insert_blank_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num)
1171 FLAC__StreamMetadata_CueSheet_Index index;
1172 memset(&index, 0, sizeof(index));
1173 return FLAC__metadata_object_cuesheet_track_insert_index(object, track_num, index_num, index);
1176 FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_track_delete_index(FLAC__StreamMetadata *object, unsigned track_num, unsigned index_num)
1178 FLAC__StreamMetadata_CueSheet_Track *track;
1180 FLAC__ASSERT(0 != object);
1181 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
1182 FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
1183 FLAC__ASSERT(index_num < object->data.cue_sheet.tracks[track_num].num_indices);
1185 track = &object->data.cue_sheet.tracks[track_num];
1187 /* move all indices > index_num backward one space */
1188 memmove(&track->indices[index_num], &track->indices[index_num+1], sizeof(FLAC__StreamMetadata_CueSheet_Index)*(track->num_indices-index_num-1));
1190 FLAC__metadata_object_cuesheet_track_resize_indices(object, track_num, track->num_indices-1);
1191 cuesheet_calculate_length_(object);
1195 FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_resize_tracks(FLAC__StreamMetadata *object, unsigned new_num_tracks)
1197 FLAC__ASSERT(0 != object);
1198 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
1200 if(0 == object->data.cue_sheet.tracks) {
1201 FLAC__ASSERT(object->data.cue_sheet.num_tracks == 0);
1202 if(0 == new_num_tracks)
1204 else if(0 == (object->data.cue_sheet.tracks = cuesheet_track_array_new_(new_num_tracks)))
1208 const unsigned old_size = object->data.cue_sheet.num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track);
1209 const unsigned new_size = new_num_tracks * sizeof(FLAC__StreamMetadata_CueSheet_Track);
1211 FLAC__ASSERT(object->data.cue_sheet.num_tracks > 0);
1213 /* if shrinking, free the truncated entries */
1214 if(new_num_tracks < object->data.cue_sheet.num_tracks) {
1216 for(i = new_num_tracks; i < object->data.cue_sheet.num_tracks; i++)
1217 if(0 != object->data.cue_sheet.tracks[i].indices)
1218 free(object->data.cue_sheet.tracks[i].indices);
1222 free(object->data.cue_sheet.tracks);
1223 object->data.cue_sheet.tracks = 0;
1225 else if(0 == (object->data.cue_sheet.tracks = (FLAC__StreamMetadata_CueSheet_Track*)realloc(object->data.cue_sheet.tracks, new_size)))
1228 /* if growing, zero all the lengths/pointers of new elements */
1229 if(new_size > old_size)
1230 memset(object->data.cue_sheet.tracks + object->data.cue_sheet.num_tracks, 0, new_size - old_size);
1233 object->data.cue_sheet.num_tracks = new_num_tracks;
1235 cuesheet_calculate_length_(object);
1239 FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_set_track(FLAC__StreamMetadata *object, unsigned track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy)
1241 FLAC__ASSERT(0 != object);
1242 FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
1244 return cuesheet_set_track_(object, object->data.cue_sheet.tracks + track_num, track, copy);
1247 FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_track(FLAC__StreamMetadata *object, unsigned track_num, FLAC__StreamMetadata_CueSheet_Track *track, FLAC__bool copy)
1249 FLAC__StreamMetadata_CueSheet *cs;
1251 FLAC__ASSERT(0 != object);
1252 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
1253 FLAC__ASSERT(track_num <= object->data.cue_sheet.num_tracks);
1255 cs = &object->data.cue_sheet;
1257 if(!FLAC__metadata_object_cuesheet_resize_tracks(object, cs->num_tracks+1))
1260 /* move all tracks >= track_num forward one space */
1261 memmove(&cs->tracks[track_num+1], &cs->tracks[track_num], sizeof(FLAC__StreamMetadata_CueSheet_Track)*(cs->num_tracks-1-track_num));
1262 cs->tracks[track_num].num_indices = 0;
1263 cs->tracks[track_num].indices = 0;
1265 return FLAC__metadata_object_cuesheet_set_track(object, track_num, track, copy);
1268 FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_insert_blank_track(FLAC__StreamMetadata *object, unsigned track_num)
1270 FLAC__StreamMetadata_CueSheet_Track track;
1271 memset(&track, 0, sizeof(track));
1272 return FLAC__metadata_object_cuesheet_insert_track(object, track_num, &track, /*copy=*/false);
1275 FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_delete_track(FLAC__StreamMetadata *object, unsigned track_num)
1277 FLAC__StreamMetadata_CueSheet *cs;
1279 FLAC__ASSERT(0 != object);
1280 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
1281 FLAC__ASSERT(track_num < object->data.cue_sheet.num_tracks);
1283 cs = &object->data.cue_sheet;
1285 /* free the track at track_num */
1286 if(0 != cs->tracks[track_num].indices)
1287 free(cs->tracks[track_num].indices);
1289 /* move all tracks > track_num backward one space */
1290 memmove(&cs->tracks[track_num], &cs->tracks[track_num+1], sizeof(FLAC__StreamMetadata_CueSheet_Track)*(cs->num_tracks-track_num-1));
1291 cs->tracks[cs->num_tracks-1].num_indices = 0;
1292 cs->tracks[cs->num_tracks-1].indices = 0;
1294 return FLAC__metadata_object_cuesheet_resize_tracks(object, cs->num_tracks-1);
1297 FLAC_API FLAC__bool FLAC__metadata_object_cuesheet_is_legal(const FLAC__StreamMetadata *object, FLAC__bool check_cd_da_subset, const char **violation)
1299 FLAC__ASSERT(0 != object);
1300 FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_CUESHEET);
1302 return FLAC__format_cuesheet_is_legal(&object->data.cue_sheet, check_cd_da_subset, violation);