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Adds last functions from C metadata api to C++ metadata api
[flac.git] / src / libFLAC++ / metadata.cpp
blobee671a02cf0f8dcec19620c02bd6bf7b1cdca08a
1 /* libFLAC++ - Free Lossless Audio Codec library
2 * Copyright (C) 2002,2003,2004,2005,2006,2007,2008,2009 Josh Coalson
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * - Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * - Neither the name of the Xiph.org Foundation nor the names of its
16 * contributors may be used to endorse or promote products derived from
17 * this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #define __STDC_LIMIT_MACROS 1 /* otherwise SIZE_MAX is not defined for c++ */
33 #include "share/alloc.h"
34 #include "FLAC++/metadata.h"
35 #include "FLAC/assert.h"
36 #include <stdlib.h> // for malloc(), free()
37 #include <string.h> // for memcpy() etc.
38
39 #ifdef _MSC_VER
40 // warning C4800: 'int' : forcing to bool 'true' or 'false' (performance warning)
41 #pragma warning ( disable : 4800 )
42 #endif
43
44 namespace FLAC {
45 namespace Metadata {
46
47 // local utility routines
48
49 namespace local {
50
51 Prototype *construct_block(::FLAC__StreamMetadata *object)
52 {
53 Prototype *ret = 0;
54 switch(object->type) {
55 case FLAC__METADATA_TYPE_STREAMINFO:
56 ret = new StreamInfo(object, /*copy=*/false);
57 break;
58 case FLAC__METADATA_TYPE_PADDING:
59 ret = new Padding(object, /*copy=*/false);
60 break;
61 case FLAC__METADATA_TYPE_APPLICATION:
62 ret = new Application(object, /*copy=*/false);
63 break;
64 case FLAC__METADATA_TYPE_SEEKTABLE:
65 ret = new SeekTable(object, /*copy=*/false);
66 break;
67 case FLAC__METADATA_TYPE_VORBIS_COMMENT:
68 ret = new VorbisComment(object, /*copy=*/false);
69 break;
70 case FLAC__METADATA_TYPE_CUESHEET:
71 ret = new CueSheet(object, /*copy=*/false);
72 break;
73 case FLAC__METADATA_TYPE_PICTURE:
74 ret = new Picture(object, /*copy=*/false);
75 break;
76 default:
77 ret = new Unknown(object, /*copy=*/false);
78 break;
79 }
80 return ret;
81 }
82
83 }
84
85 FLACPP_API Prototype *clone(const Prototype *object)
86 {
87 FLAC__ASSERT(0 != object);
88
89 const StreamInfo *streaminfo = dynamic_cast<const StreamInfo *>(object);
90 const Padding *padding = dynamic_cast<const Padding *>(object);
91 const Application *application = dynamic_cast<const Application *>(object);
92 const SeekTable *seektable = dynamic_cast<const SeekTable *>(object);
93 const VorbisComment *vorbiscomment = dynamic_cast<const VorbisComment *>(object);
94 const CueSheet *cuesheet = dynamic_cast<const CueSheet *>(object);
95 const Picture *picture = dynamic_cast<const Picture *>(object);
96 const Unknown *unknown = dynamic_cast<const Unknown *>(object);
97
98 if(0 != streaminfo)
99 return new StreamInfo(*streaminfo);
100 else if(0 != padding)
101 return new Padding(*padding);
102 else if(0 != application)
103 return new Application(*application);
104 else if(0 != seektable)
105 return new SeekTable(*seektable);
106 else if(0 != vorbiscomment)
107 return new VorbisComment(*vorbiscomment);
108 else if(0 != cuesheet)
109 return new CueSheet(*cuesheet);
110 else if(0 != picture)
111 return new Picture(*picture);
112 else if(0 != unknown)
113 return new Unknown(*unknown);
114 else {
115 FLAC__ASSERT(0);
116 return 0;
117 }
118 }
119
120 //
121 // Prototype
122 //
123
124 Prototype::Prototype(const Prototype &object):
125 object_(::FLAC__metadata_object_clone(object.object_)),
126 is_reference_(false)
127 {
128 FLAC__ASSERT(object.is_valid());
129 }
130
131 Prototype::Prototype(const ::FLAC__StreamMetadata &object):
132 object_(::FLAC__metadata_object_clone(&object)),
133 is_reference_(false)
134 {
135 }
136
137 Prototype::Prototype(const ::FLAC__StreamMetadata *object):
138 object_(::FLAC__metadata_object_clone(object)),
139 is_reference_(false)
140 {
141 FLAC__ASSERT(0 != object);
142 }
143
144 Prototype::Prototype(::FLAC__StreamMetadata *object, bool copy):
145 object_(copy? ::FLAC__metadata_object_clone(object) : object),
146 is_reference_(false)
147 {
148 FLAC__ASSERT(0 != object);
149 }
150
151 Prototype::~Prototype()
152 {
153 clear();
154 }
155
156 void Prototype::clear()
157 {
158 if(0 != object_ && !is_reference_)
159 FLAC__metadata_object_delete(object_);
160 object_ = 0;
161 }
162
163 Prototype &Prototype::operator=(const Prototype &object)
164 {
165 FLAC__ASSERT(object.is_valid());
166 clear();
167 is_reference_ = false;
168 object_ = ::FLAC__metadata_object_clone(object.object_);
169 return *this;
170 }
171
172 Prototype &Prototype::operator=(const ::FLAC__StreamMetadata &object)
173 {
174 clear();
175 is_reference_ = false;
176 object_ = ::FLAC__metadata_object_clone(&object);
177 return *this;
178 }
179
180 Prototype &Prototype::operator=(const ::FLAC__StreamMetadata *object)
181 {
182 FLAC__ASSERT(0 != object);
183 clear();
184 is_reference_ = false;
185 object_ = ::FLAC__metadata_object_clone(object);
186 return *this;
187 }
188
189 Prototype &Prototype::assign_object(::FLAC__StreamMetadata *object, bool copy)
190 {
191 FLAC__ASSERT(0 != object);
192 clear();
193 object_ = (copy? ::FLAC__metadata_object_clone(object) : object);
194 is_reference_ = false;
195 return *this;
196 }
197
198 bool Prototype::get_is_last() const
199 {
200 FLAC__ASSERT(is_valid());
201 return (bool)object_->is_last;
202 }
203
204 FLAC__MetadataType Prototype::get_type() const
205 {
206 FLAC__ASSERT(is_valid());
207 return object_->type;
208 }
209
210 unsigned Prototype::get_length() const
211 {
212 FLAC__ASSERT(is_valid());
213 return object_->length;
214 }
215
216 void Prototype::set_is_last(bool value)
217 {
218 FLAC__ASSERT(is_valid());
219 object_->is_last = value;
220 }
221
222
223 //
224 // StreamInfo
225 //
226
227 StreamInfo::StreamInfo():
228 Prototype(FLAC__metadata_object_new(FLAC__METADATA_TYPE_STREAMINFO), /*copy=*/false)
229 { }
230
231 StreamInfo::~StreamInfo()
232 { }
233
234 unsigned StreamInfo::get_min_blocksize() const
235 {
236 FLAC__ASSERT(is_valid());
237 return object_->data.stream_info.min_blocksize;
238 }
239
240 unsigned StreamInfo::get_max_blocksize() const
241 {
242 FLAC__ASSERT(is_valid());
243 return object_->data.stream_info.max_blocksize;
244 }
245
246 unsigned StreamInfo::get_min_framesize() const
247 {
248 FLAC__ASSERT(is_valid());
249 return object_->data.stream_info.min_framesize;
250 }
251
252 unsigned StreamInfo::get_max_framesize() const
253 {
254 FLAC__ASSERT(is_valid());
255 return object_->data.stream_info.max_framesize;
256 }
257
258 unsigned StreamInfo::get_sample_rate() const
259 {
260 FLAC__ASSERT(is_valid());
261 return object_->data.stream_info.sample_rate;
262 }
263
264 unsigned StreamInfo::get_channels() const
265 {
266 FLAC__ASSERT(is_valid());
267 return object_->data.stream_info.channels;
268 }
269
270 unsigned StreamInfo::get_bits_per_sample() const
271 {
272 FLAC__ASSERT(is_valid());
273 return object_->data.stream_info.bits_per_sample;
274 }
275
276 FLAC__uint64 StreamInfo::get_total_samples() const
277 {
278 FLAC__ASSERT(is_valid());
279 return object_->data.stream_info.total_samples;
280 }
281
282 const FLAC__byte *StreamInfo::get_md5sum() const
283 {
284 FLAC__ASSERT(is_valid());
285 return object_->data.stream_info.md5sum;
286 }
287
288 void StreamInfo::set_min_blocksize(unsigned value)
289 {
290 FLAC__ASSERT(is_valid());
291 FLAC__ASSERT(value >= FLAC__MIN_BLOCK_SIZE);
292 FLAC__ASSERT(value <= FLAC__MAX_BLOCK_SIZE);
293 object_->data.stream_info.min_blocksize = value;
294 }
295
296 void StreamInfo::set_max_blocksize(unsigned value)
297 {
298 FLAC__ASSERT(is_valid());
299 FLAC__ASSERT(value >= FLAC__MIN_BLOCK_SIZE);
300 FLAC__ASSERT(value <= FLAC__MAX_BLOCK_SIZE);
301 object_->data.stream_info.max_blocksize = value;
302 }
303
304 void StreamInfo::set_min_framesize(unsigned value)
305 {
306 FLAC__ASSERT(is_valid());
307 FLAC__ASSERT(value < (1u << FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN));
308 object_->data.stream_info.min_framesize = value;
309 }
310
311 void StreamInfo::set_max_framesize(unsigned value)
312 {
313 FLAC__ASSERT(is_valid());
314 FLAC__ASSERT(value < (1u << FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN));
315 object_->data.stream_info.max_framesize = value;
316 }
317
318 void StreamInfo::set_sample_rate(unsigned value)
319 {
320 FLAC__ASSERT(is_valid());
321 FLAC__ASSERT(FLAC__format_sample_rate_is_valid(value));
322 object_->data.stream_info.sample_rate = value;
323 }
324
325 void StreamInfo::set_channels(unsigned value)
326 {
327 FLAC__ASSERT(is_valid());
328 FLAC__ASSERT(value > 0);
329 FLAC__ASSERT(value <= FLAC__MAX_CHANNELS);
330 object_->data.stream_info.channels = value;
331 }
332
333 void StreamInfo::set_bits_per_sample(unsigned value)
334 {
335 FLAC__ASSERT(is_valid());
336 FLAC__ASSERT(value >= FLAC__MIN_BITS_PER_SAMPLE);
337 FLAC__ASSERT(value <= FLAC__MAX_BITS_PER_SAMPLE);
338 object_->data.stream_info.bits_per_sample = value;
339 }
340
341 void StreamInfo::set_total_samples(FLAC__uint64 value)
342 {
343 FLAC__ASSERT(is_valid());
344 FLAC__ASSERT(value < (((FLAC__uint64)1) << FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN));
345 object_->data.stream_info.total_samples = value;
346 }
347
348 void StreamInfo::set_md5sum(const FLAC__byte value[16])
349 {
350 FLAC__ASSERT(is_valid());
351 FLAC__ASSERT(0 != value);
352 memcpy(object_->data.stream_info.md5sum, value, 16);
353 }
354
355
356 //
357 // Padding
358 //
359
360 Padding::Padding():
361 Prototype(FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING), /*copy=*/false)
362 { }
363
364 Padding::~Padding()
365 { }
366
367 void Padding::set_length(unsigned length)
368 {
369 FLAC__ASSERT(is_valid());
370 object_->length = length;
371 }
372
373
374 //
375 // Application
376 //
377
378 Application::Application():
379 Prototype(FLAC__metadata_object_new(FLAC__METADATA_TYPE_APPLICATION), /*copy=*/false)
380 { }
381
382 Application::~Application()
383 { }
384
385 const FLAC__byte *Application::get_id() const
386 {
387 FLAC__ASSERT(is_valid());
388 return object_->data.application.id;
389 }
390
391 const FLAC__byte *Application::get_data() const
392 {
393 FLAC__ASSERT(is_valid());
394 return object_->data.application.data;
395 }
396
397 void Application::set_id(const FLAC__byte value[4])
398 {
399 FLAC__ASSERT(is_valid());
400 FLAC__ASSERT(0 != value);
401 memcpy(object_->data.application.id, value, 4);
402 }
403
404 bool Application::set_data(const FLAC__byte *data, unsigned length)
405 {
406 FLAC__ASSERT(is_valid());
407 return (bool)::FLAC__metadata_object_application_set_data(object_, (FLAC__byte*)data, length, true);
408 }
409
410 bool Application::set_data(FLAC__byte *data, unsigned length, bool copy)
411 {
412 FLAC__ASSERT(is_valid());
413 return (bool)::FLAC__metadata_object_application_set_data(object_, data, length, copy);
414 }
415
416
417 //
418 // SeekTable
419 //
420
421 SeekTable::SeekTable():
422 Prototype(FLAC__metadata_object_new(FLAC__METADATA_TYPE_SEEKTABLE), /*copy=*/false)
423 { }
424
425 SeekTable::~SeekTable()
426 { }
427
428 unsigned SeekTable::get_num_points() const
429 {
430 FLAC__ASSERT(is_valid());
431 return object_->data.seek_table.num_points;
432 }
433
434 ::FLAC__StreamMetadata_SeekPoint SeekTable::get_point(unsigned index) const
435 {
436 FLAC__ASSERT(is_valid());
437 FLAC__ASSERT(index < object_->data.seek_table.num_points);
438 return object_->data.seek_table.points[index];
439 }
440
441 bool SeekTable::resize_points(unsigned new_num_points)
442 {
443 FLAC__ASSERT(is_valid());
444 return (bool)::FLAC__metadata_object_seektable_resize_points(object_, new_num_points);
445 }
446
447 void SeekTable::set_point(unsigned index, const ::FLAC__StreamMetadata_SeekPoint &point)
448 {
449 FLAC__ASSERT(is_valid());
450 FLAC__ASSERT(index < object_->data.seek_table.num_points);
451 ::FLAC__metadata_object_seektable_set_point(object_, index, point);
452 }
453
454 bool SeekTable::insert_point(unsigned index, const ::FLAC__StreamMetadata_SeekPoint &point)
455 {
456 FLAC__ASSERT(is_valid());
457 FLAC__ASSERT(index <= object_->data.seek_table.num_points);
458 return (bool)::FLAC__metadata_object_seektable_insert_point(object_, index, point);
459 }
460
461 bool SeekTable::delete_point(unsigned index)
462 {
463 FLAC__ASSERT(is_valid());
464 FLAC__ASSERT(index < object_->data.seek_table.num_points);
465 return (bool)::FLAC__metadata_object_seektable_delete_point(object_, index);
466 }
467
468 bool SeekTable::is_legal() const
469 {
470 FLAC__ASSERT(is_valid());
471 return (bool)::FLAC__metadata_object_seektable_is_legal(object_);
472 }
473
474 bool SeekTable::template_append_placeholders(unsigned num)
475 {
476 FLAC__ASSERT(is_valid());
477 return (bool)::FLAC__metadata_object_seektable_template_append_placeholders(object_, num);
478 }
479
480 bool SeekTable::template_append_point(FLAC__uint64 sample_number)
481 {
482 FLAC__ASSERT(is_valid());
483 return (bool)::FLAC__metadata_object_seektable_template_append_point(object_, sample_number);
484 }
485
486 bool SeekTable::template_append_points(FLAC__uint64 sample_numbers[], unsigned num)
487 {
488 FLAC__ASSERT(is_valid());
489 return (bool)::FLAC__metadata_object_seektable_template_append_points(object_, sample_numbers, num);
490 }
491
492 bool SeekTable::template_append_spaced_points(unsigned num, FLAC__uint64 total_samples)
493 {
494 FLAC__ASSERT(is_valid());
495 return (bool)::FLAC__metadata_object_seektable_template_append_spaced_points(object_, num, total_samples);
496 }
497
498 bool SeekTable::template_append_spaced_points_by_samples(unsigned samples, FLAC__uint64 total_samples)
499 {
500 FLAC__ASSERT(is_valid());
501 return (bool)::FLAC__metadata_object_seektable_template_append_spaced_points_by_samples(object_, samples, total_samples);
502 }
503
504 bool SeekTable::template_sort(bool compact)
505 {
506 FLAC__ASSERT(is_valid());
507 return (bool)::FLAC__metadata_object_seektable_template_sort(object_, compact);
508 }
509
510
511 //
512 // VorbisComment::Entry
513 //
514
515 VorbisComment::Entry::Entry()
516 {
517 zero();
518 }
519
520 VorbisComment::Entry::Entry(const char *field, unsigned field_length)
521 {
522 zero();
523 construct(field, field_length);
524 }
525
526 VorbisComment::Entry::Entry(const char *field)
527 {
528 zero();
529 construct(field);
530 }
531
532 VorbisComment::Entry::Entry(const char *field_name, const char *field_value, unsigned field_value_length)
533 {
534 zero();
535 construct(field_name, field_value, field_value_length);
536 }
537
538 VorbisComment::Entry::Entry(const char *field_name, const char *field_value)
539 {
540 zero();
541 construct(field_name, field_value);
542 }
543
544 VorbisComment::Entry::Entry(const Entry &entry)
545 {
546 FLAC__ASSERT(entry.is_valid());
547 zero();
548 construct((const char *)entry.entry_.entry, entry.entry_.length);
549 }
550
551 VorbisComment::Entry &VorbisComment::Entry::operator=(const Entry &entry)
552 {
553 FLAC__ASSERT(entry.is_valid());
554 clear();
555 construct((const char *)entry.entry_.entry, entry.entry_.length);
556 return *this;
557 }
558
559 VorbisComment::Entry::~Entry()
560 {
561 clear();
562 }
563
564 bool VorbisComment::Entry::is_valid() const
565 {
566 return is_valid_;
567 }
568
569 unsigned VorbisComment::Entry::get_field_length() const
570 {
571 FLAC__ASSERT(is_valid());
572 return entry_.length;
573 }
574
575 unsigned VorbisComment::Entry::get_field_name_length() const
576 {
577 FLAC__ASSERT(is_valid());
578 return field_name_length_;
579 }
580
581 unsigned VorbisComment::Entry::get_field_value_length() const
582 {
583 FLAC__ASSERT(is_valid());
584 return field_value_length_;
585 }
586
587 ::FLAC__StreamMetadata_VorbisComment_Entry VorbisComment::Entry::get_entry() const
588 {
589 FLAC__ASSERT(is_valid());
590 return entry_;
591 }
592
593 const char *VorbisComment::Entry::get_field() const
594 {
595 FLAC__ASSERT(is_valid());
596 return (const char *)entry_.entry;
597 }
598
599 const char *VorbisComment::Entry::get_field_name() const
600 {
601 FLAC__ASSERT(is_valid());
602 return field_name_;
603 }
604
605 const char *VorbisComment::Entry::get_field_value() const
606 {
607 FLAC__ASSERT(is_valid());
608 return field_value_;
609 }
610
611 bool VorbisComment::Entry::set_field(const char *field, unsigned field_length)
612 {
613 FLAC__ASSERT(is_valid());
614 FLAC__ASSERT(0 != field);
615
616 if(!::FLAC__format_vorbiscomment_entry_is_legal((const ::FLAC__byte*)field, field_length))
617 return is_valid_ = false;
618
619 clear_entry();
620
621 if(0 == (entry_.entry = (FLAC__byte*)safe_malloc_add_2op_(field_length, /*+*/1))) {
622 is_valid_ = false;
623 }
624 else {
625 entry_.length = field_length;
626 memcpy(entry_.entry, field, field_length);
627 entry_.entry[field_length] = '\0';
628 (void) parse_field();
629 }
630
631 return is_valid_;
632 }
633
634 bool VorbisComment::Entry::set_field(const char *field)
635 {
636 return set_field(field, strlen(field));
637 }
638
639 bool VorbisComment::Entry::set_field_name(const char *field_name)
640 {
641 FLAC__ASSERT(is_valid());
642 FLAC__ASSERT(0 != field_name);
643
644 if(!::FLAC__format_vorbiscomment_entry_name_is_legal(field_name))
645 return is_valid_ = false;
646
647 clear_field_name();
648
649 if(0 == (field_name_ = strdup(field_name))) {
650 is_valid_ = false;
651 }
652 else {
653 field_name_length_ = strlen(field_name_);
654 compose_field();
655 }
656
657 return is_valid_;
658 }
659
660 bool VorbisComment::Entry::set_field_value(const char *field_value, unsigned field_value_length)
661 {
662 FLAC__ASSERT(is_valid());
663 FLAC__ASSERT(0 != field_value);
664
665 if(!::FLAC__format_vorbiscomment_entry_value_is_legal((const FLAC__byte*)field_value, field_value_length))
666 return is_valid_ = false;
667
668 clear_field_value();
669
670 if(0 == (field_value_ = (char *)safe_malloc_add_2op_(field_value_length, /*+*/1))) {
671 is_valid_ = false;
672 }
673 else {
674 field_value_length_ = field_value_length;
675 memcpy(field_value_, field_value, field_value_length);
676 field_value_[field_value_length] = '\0';
677 compose_field();
678 }
679
680 return is_valid_;
681 }
682
683 bool VorbisComment::Entry::set_field_value(const char *field_value)
684 {
685 return set_field_value(field_value, strlen(field_value));
686 }
687
688 void VorbisComment::Entry::zero()
689 {
690 is_valid_ = true;
691 entry_.length = 0;
692 entry_.entry = 0;
693 field_name_ = 0;
694 field_name_length_ = 0;
695 field_value_ = 0;
696 field_value_length_ = 0;
697 }
698
699 void VorbisComment::Entry::clear()
700 {
701 clear_entry();
702 clear_field_name();
703 clear_field_value();
704 is_valid_ = true;
705 }
706
707 void VorbisComment::Entry::clear_entry()
708 {
709 if(0 != entry_.entry) {
710 free(entry_.entry);
711 entry_.entry = 0;
712 entry_.length = 0;
713 }
714 }
715
716 void VorbisComment::Entry::clear_field_name()
717 {
718 if(0 != field_name_) {
719 free(field_name_);
720 field_name_ = 0;
721 field_name_length_ = 0;
722 }
723 }
724
725 void VorbisComment::Entry::clear_field_value()
726 {
727 if(0 != field_value_) {
728 free(field_value_);
729 field_value_ = 0;
730 field_value_length_ = 0;
731 }
732 }
733
734 void VorbisComment::Entry::construct(const char *field, unsigned field_length)
735 {
736 if(set_field(field, field_length))
737 parse_field();
738 }
739
740 void VorbisComment::Entry::construct(const char *field)
741 {
742 construct(field, strlen(field));
743 }
744
745 void VorbisComment::Entry::construct(const char *field_name, const char *field_value, unsigned field_value_length)
746 {
747 if(set_field_name(field_name) && set_field_value(field_value, field_value_length))
748 compose_field();
749 }
750
751 void VorbisComment::Entry::construct(const char *field_name, const char *field_value)
752 {
753 construct(field_name, field_value, strlen(field_value));
754 }
755
756 void VorbisComment::Entry::compose_field()
757 {
758 clear_entry();
759
760 if(0 == (entry_.entry = (FLAC__byte*)safe_malloc_add_4op_(field_name_length_, /*+*/1, /*+*/field_value_length_, /*+*/1))) {
761 is_valid_ = false;
762 }
763 else {
764 memcpy(entry_.entry, field_name_, field_name_length_);
765 entry_.length += field_name_length_;
766 memcpy(entry_.entry + entry_.length, "=", 1);
767 entry_.length += 1;
768 memcpy(entry_.entry + entry_.length, field_value_, field_value_length_);
769 entry_.length += field_value_length_;
770 entry_.entry[entry_.length] = '\0';
771 is_valid_ = true;
772 }
773 }
774
775 void VorbisComment::Entry::parse_field()
776 {
777 clear_field_name();
778 clear_field_value();
779
780 const char *p = (const char *)memchr(entry_.entry, '=', entry_.length);
781
782 if(0 == p)
783 p = (const char *)entry_.entry + entry_.length;
784
785 field_name_length_ = (unsigned)(p - (const char *)entry_.entry);
786 if(0 == (field_name_ = (char *)safe_malloc_add_2op_(field_name_length_, /*+*/1))) { // +1 for the trailing \0
787 is_valid_ = false;
788 return;
789 }
790 memcpy(field_name_, entry_.entry, field_name_length_);
791 field_name_[field_name_length_] = '\0';
792
793 if(entry_.length - field_name_length_ == 0) {
794 field_value_length_ = 0;
795 if(0 == (field_value_ = (char *)safe_malloc_(0))) {
796 is_valid_ = false;
797 return;
798 }
799 }
800 else {
801 field_value_length_ = entry_.length - field_name_length_ - 1;
802 if(0 == (field_value_ = (char *)safe_malloc_add_2op_(field_value_length_, /*+*/1))) { // +1 for the trailing \0
803 is_valid_ = false;
804 return;
805 }
806 memcpy(field_value_, ++p, field_value_length_);
807 field_value_[field_value_length_] = '\0';
808 }
809
810 is_valid_ = true;
811 }
812
813
814 //
815 // VorbisComment
816 //
817
818 VorbisComment::VorbisComment():
819 Prototype(FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT), /*copy=*/false)
820 { }
821
822 VorbisComment::~VorbisComment()
823 { }
824
825 unsigned VorbisComment::get_num_comments() const
826 {
827 FLAC__ASSERT(is_valid());
828 return object_->data.vorbis_comment.num_comments;
829 }
830
831 const FLAC__byte *VorbisComment::get_vendor_string() const
832 {
833 FLAC__ASSERT(is_valid());
834 return object_->data.vorbis_comment.vendor_string.entry;
835 }
836
837 VorbisComment::Entry VorbisComment::get_comment(unsigned index) const
838 {
839 FLAC__ASSERT(is_valid());
840 FLAC__ASSERT(index < object_->data.vorbis_comment.num_comments);
841 return Entry((const char *)object_->data.vorbis_comment.comments[index].entry, object_->data.vorbis_comment.comments[index].length);
842 }
843
844 bool VorbisComment::set_vendor_string(const FLAC__byte *string)
845 {
846 FLAC__ASSERT(is_valid());
847 // vendor_string is a special kind of entry
848 const ::FLAC__StreamMetadata_VorbisComment_Entry vendor_string = { static_cast<FLAC__uint32>(strlen((const char *)string)), (FLAC__byte*)string }; // we can cheat on const-ness because we make a copy below:
849 return (bool)::FLAC__metadata_object_vorbiscomment_set_vendor_string(object_, vendor_string, /*copy=*/true);
850 }
851
852 bool VorbisComment::resize_comments(unsigned new_num_comments)
853 {
854 FLAC__ASSERT(is_valid());
855 return (bool)::FLAC__metadata_object_vorbiscomment_resize_comments(object_, new_num_comments);
856 }
857
858 bool VorbisComment::set_comment(unsigned index, const VorbisComment::Entry &entry)
859 {
860 FLAC__ASSERT(is_valid());
861 FLAC__ASSERT(index < object_->data.vorbis_comment.num_comments);
862 return (bool)::FLAC__metadata_object_vorbiscomment_set_comment(object_, index, entry.get_entry(), /*copy=*/true);
863 }
864
865 bool VorbisComment::insert_comment(unsigned index, const VorbisComment::Entry &entry)
866 {
867 FLAC__ASSERT(is_valid());
868 FLAC__ASSERT(index <= object_->data.vorbis_comment.num_comments);
869 return (bool)::FLAC__metadata_object_vorbiscomment_insert_comment(object_, index, entry.get_entry(), /*copy=*/true);
870 }
871
872 bool VorbisComment::append_comment(const VorbisComment::Entry &entry)
873 {
874 FLAC__ASSERT(is_valid());
875 return (bool)::FLAC__metadata_object_vorbiscomment_append_comment(object_, entry.get_entry(), /*copy=*/true);
876 }
877
878 bool VorbisComment::replace_comment(const VorbisComment::Entry &entry, bool all)
879 {
880 FLAC__ASSERT(is_valid());
881 return (bool)::FLAC__metadata_object_vorbiscomment_replace_comment(object_, entry.get_entry(), all, /*copy=*/true);
882 }
883
884 bool VorbisComment::delete_comment(unsigned index)
885 {
886 FLAC__ASSERT(is_valid());
887 FLAC__ASSERT(index < object_->data.vorbis_comment.num_comments);
888 return (bool)::FLAC__metadata_object_vorbiscomment_delete_comment(object_, index);
889 }
890
891 int VorbisComment::find_entry_from(unsigned offset, const char *field_name)
892 {
893 FLAC__ASSERT(is_valid());
894 return ::FLAC__metadata_object_vorbiscomment_find_entry_from(object_, offset, field_name);
895 }
896
897 int VorbisComment::remove_entry_matching(const char *field_name)
898 {
899 FLAC__ASSERT(is_valid());
900 return ::FLAC__metadata_object_vorbiscomment_remove_entry_matching(object_, field_name);
901 }
902
903 int VorbisComment::remove_entries_matching(const char *field_name)
904 {
905 FLAC__ASSERT(is_valid());
906 return ::FLAC__metadata_object_vorbiscomment_remove_entries_matching(object_, field_name);
907 }
908
909
910 //
911 // CueSheet::Track
912 //
913
914 CueSheet::Track::Track():
915 object_(::FLAC__metadata_object_cuesheet_track_new())
916 { }
917
918 CueSheet::Track::Track(const ::FLAC__StreamMetadata_CueSheet_Track *track):
919 object_(::FLAC__metadata_object_cuesheet_track_clone(track))
920 { }
921
922 CueSheet::Track::Track(const Track &track):
923 object_(::FLAC__metadata_object_cuesheet_track_clone(track.object_))
924 { }
925
926 CueSheet::Track &CueSheet::Track::operator=(const Track &track)
927 {
928 if(0 != object_)
929 ::FLAC__metadata_object_cuesheet_track_delete(object_);
930 object_ = ::FLAC__metadata_object_cuesheet_track_clone(track.object_);
931 return *this;
932 }
933
934 CueSheet::Track::~Track()
935 {
936 if(0 != object_)
937 ::FLAC__metadata_object_cuesheet_track_delete(object_);
938 }
939
940 bool CueSheet::Track::is_valid() const
941 {
942 return(0 != object_);
943 }
944
945 ::FLAC__StreamMetadata_CueSheet_Index CueSheet::Track::get_index(unsigned i) const
946 {
947 FLAC__ASSERT(is_valid());
948 FLAC__ASSERT(i < object_->num_indices);
949 return object_->indices[i];
950 }
951
952 void CueSheet::Track::set_isrc(const char value[12])
953 {
954 FLAC__ASSERT(is_valid());
955 FLAC__ASSERT(0 != value);
956 memcpy(object_->isrc, value, 12);
957 object_->isrc[12] = '\0';
958 }
959
960 void CueSheet::Track::set_type(unsigned value)
961 {
962 FLAC__ASSERT(is_valid());
963 FLAC__ASSERT(value <= 1);
964 object_->type = value;
965 }
966
967 void CueSheet::Track::set_index(unsigned i, const ::FLAC__StreamMetadata_CueSheet_Index &index)
968 {
969 FLAC__ASSERT(is_valid());
970 FLAC__ASSERT(i < object_->num_indices);
971 object_->indices[i] = index;
972 }
973
974
975 //
976 // CueSheet
977 //
978
979 CueSheet::CueSheet():
980 Prototype(FLAC__metadata_object_new(FLAC__METADATA_TYPE_CUESHEET), /*copy=*/false)
981 { }
982
983 CueSheet::~CueSheet()
984 { }
985
986 const char *CueSheet::get_media_catalog_number() const
987 {
988 FLAC__ASSERT(is_valid());
989 return object_->data.cue_sheet.media_catalog_number;
990 }
991
992 FLAC__uint64 CueSheet::get_lead_in() const
993 {
994 FLAC__ASSERT(is_valid());
995 return object_->data.cue_sheet.lead_in;
996 }
997
998 bool CueSheet::get_is_cd() const
999 {
1000 FLAC__ASSERT(is_valid());
1001 return object_->data.cue_sheet.is_cd? true : false;
1002 }
1003
1004 unsigned CueSheet::get_num_tracks() const
1005 {
1006 FLAC__ASSERT(is_valid());
1007 return object_->data.cue_sheet.num_tracks;
1008 }
1009
1010 CueSheet::Track CueSheet::get_track(unsigned i) const
1011 {
1012 FLAC__ASSERT(is_valid());
1013 FLAC__ASSERT(i < object_->data.cue_sheet.num_tracks);
1014 return Track(object_->data.cue_sheet.tracks + i);
1015 }
1016
1017 void CueSheet::set_media_catalog_number(const char value[128])
1018 {
1019 FLAC__ASSERT(is_valid());
1020 FLAC__ASSERT(0 != value);
1021 memcpy(object_->data.cue_sheet.media_catalog_number, value, 128);
1022 object_->data.cue_sheet.media_catalog_number[128] = '\0';
1023 }
1024
1025 void CueSheet::set_lead_in(FLAC__uint64 value)
1026 {
1027 FLAC__ASSERT(is_valid());
1028 object_->data.cue_sheet.lead_in = value;
1029 }
1030
1031 void CueSheet::set_is_cd(bool value)
1032 {
1033 FLAC__ASSERT(is_valid());
1034 object_->data.cue_sheet.is_cd = value;
1035 }
1036
1037 void CueSheet::set_index(unsigned track_num, unsigned index_num, const ::FLAC__StreamMetadata_CueSheet_Index &index)
1038 {
1039 FLAC__ASSERT(is_valid());
1040 FLAC__ASSERT(track_num < object_->data.cue_sheet.num_tracks);
1041 FLAC__ASSERT(index_num < object_->data.cue_sheet.tracks[track_num].num_indices);
1042 object_->data.cue_sheet.tracks[track_num].indices[index_num] = index;
1043 }
1044
1045 bool CueSheet::resize_indices(unsigned track_num, unsigned new_num_indices)
1046 {
1047 FLAC__ASSERT(is_valid());
1048 FLAC__ASSERT(track_num < object_->data.cue_sheet.num_tracks);
1049 return (bool)::FLAC__metadata_object_cuesheet_track_resize_indices(object_, track_num, new_num_indices);
1050 }
1051
1052 bool CueSheet::insert_index(unsigned track_num, unsigned index_num, const ::FLAC__StreamMetadata_CueSheet_Index &index)
1053 {
1054 FLAC__ASSERT(is_valid());
1055 FLAC__ASSERT(track_num < object_->data.cue_sheet.num_tracks);
1056 FLAC__ASSERT(index_num <= object_->data.cue_sheet.tracks[track_num].num_indices);
1057 return (bool)::FLAC__metadata_object_cuesheet_track_insert_index(object_, track_num, index_num, index);
1058 }
1059
1060 bool CueSheet::insert_blank_index(unsigned track_num, unsigned index_num)
1061 {
1062 FLAC__ASSERT(is_valid());
1063 FLAC__ASSERT(track_num < object_->data.cue_sheet.num_tracks);
1064 FLAC__ASSERT(index_num <= object_->data.cue_sheet.tracks[track_num].num_indices);
1065 return (bool)::FLAC__metadata_object_cuesheet_track_insert_blank_index(object_, track_num, index_num);
1066 }
1067
1068 bool CueSheet::delete_index(unsigned track_num, unsigned index_num)
1069 {
1070 FLAC__ASSERT(is_valid());
1071 FLAC__ASSERT(track_num < object_->data.cue_sheet.num_tracks);
1072 FLAC__ASSERT(index_num < object_->data.cue_sheet.tracks[track_num].num_indices);
1073 return (bool)::FLAC__metadata_object_cuesheet_track_delete_index(object_, track_num, index_num);
1074 }
1075
1076 bool CueSheet::resize_tracks(unsigned new_num_tracks)
1077 {
1078 FLAC__ASSERT(is_valid());
1079 return (bool)::FLAC__metadata_object_cuesheet_resize_tracks(object_, new_num_tracks);
1080 }
1081
1082 bool CueSheet::set_track(unsigned i, const CueSheet::Track &track)
1083 {
1084 FLAC__ASSERT(is_valid());
1085 FLAC__ASSERT(i < object_->data.cue_sheet.num_tracks);
1086 // We can safely const_cast since copy=true
1087 return (bool)::FLAC__metadata_object_cuesheet_set_track(object_, i, const_cast< ::FLAC__StreamMetadata_CueSheet_Track*>(track.get_track()), /*copy=*/true);
1088 }
1089
1090 bool CueSheet::insert_track(unsigned i, const CueSheet::Track &track)
1091 {
1092 FLAC__ASSERT(is_valid());
1093 FLAC__ASSERT(i <= object_->data.cue_sheet.num_tracks);
1094 // We can safely const_cast since copy=true
1095 return (bool)::FLAC__metadata_object_cuesheet_insert_track(object_, i, const_cast< ::FLAC__StreamMetadata_CueSheet_Track*>(track.get_track()), /*copy=*/true);
1096 }
1097
1098 bool CueSheet::insert_blank_track(unsigned i)
1099 {
1100 FLAC__ASSERT(is_valid());
1101 FLAC__ASSERT(i <= object_->data.cue_sheet.num_tracks);
1102 return (bool)::FLAC__metadata_object_cuesheet_insert_blank_track(object_, i);
1103 }
1104
1105 bool CueSheet::delete_track(unsigned i)
1106 {
1107 FLAC__ASSERT(is_valid());
1108 FLAC__ASSERT(i < object_->data.cue_sheet.num_tracks);
1109 return (bool)::FLAC__metadata_object_cuesheet_delete_track(object_, i);
1110 }
1111
1112 bool CueSheet::is_legal(bool check_cd_da_subset, const char **violation) const
1113 {
1114 FLAC__ASSERT(is_valid());
1115 return (bool)::FLAC__metadata_object_cuesheet_is_legal(object_, check_cd_da_subset, violation);
1116 }
1117
1118 FLAC__uint32 CueSheet::calculate_cddb_id() const
1119 {
1120 FLAC__ASSERT(is_valid());
1121 return ::FLAC__metadata_object_cuesheet_calculate_cddb_id(object_);
1122 }
1123
1124
1125 //
1126 // Picture
1127 //
1128
1129 Picture::Picture():
1130 Prototype(FLAC__metadata_object_new(FLAC__METADATA_TYPE_PICTURE), /*copy=*/false)
1131 { }
1132
1133 Picture::~Picture()
1134 { }
1135
1136 ::FLAC__StreamMetadata_Picture_Type Picture::get_type() const
1137 {
1138 FLAC__ASSERT(is_valid());
1139 return object_->data.picture.type;
1140 }
1141
1142 const char *Picture::get_mime_type() const
1143 {
1144 FLAC__ASSERT(is_valid());
1145 return object_->data.picture.mime_type;
1146 }
1147
1148 const FLAC__byte *Picture::get_description() const
1149 {
1150 FLAC__ASSERT(is_valid());
1151 return object_->data.picture.description;
1152 }
1153
1154 FLAC__uint32 Picture::get_width() const
1155 {
1156 FLAC__ASSERT(is_valid());
1157 return object_->data.picture.width;
1158 }
1159
1160 FLAC__uint32 Picture::get_height() const
1161 {
1162 FLAC__ASSERT(is_valid());
1163 return object_->data.picture.height;
1164 }
1165
1166 FLAC__uint32 Picture::get_depth() const
1167 {
1168 FLAC__ASSERT(is_valid());
1169 return object_->data.picture.depth;
1170 }
1171
1172 FLAC__uint32 Picture::get_colors() const
1173 {
1174 FLAC__ASSERT(is_valid());
1175 return object_->data.picture.colors;
1176 }
1177
1178 FLAC__uint32 Picture::get_data_length() const
1179 {
1180 FLAC__ASSERT(is_valid());
1181 return object_->data.picture.data_length;
1182 }
1183
1184 const FLAC__byte *Picture::get_data() const
1185 {
1186 FLAC__ASSERT(is_valid());
1187 return object_->data.picture.data;
1188 }
1189
1190 void Picture::set_type(::FLAC__StreamMetadata_Picture_Type type)
1191 {
1192 FLAC__ASSERT(is_valid());
1193 object_->data.picture.type = type;
1194 }
1195
1196 bool Picture::set_mime_type(const char *string)
1197 {
1198 FLAC__ASSERT(is_valid());
1199 // We can safely const_cast since copy=true
1200 return (bool)::FLAC__metadata_object_picture_set_mime_type(object_, const_cast<char*>(string), /*copy=*/true);
1201 }
1202
1203 bool Picture::set_description(const FLAC__byte *string)
1204 {
1205 FLAC__ASSERT(is_valid());
1206 // We can safely const_cast since copy=true
1207 return (bool)::FLAC__metadata_object_picture_set_description(object_, const_cast<FLAC__byte*>(string), /*copy=*/true);
1208 }
1209
1210 void Picture::set_width(FLAC__uint32 value) const
1211 {
1212 FLAC__ASSERT(is_valid());
1213 object_->data.picture.width = value;
1214 }
1215
1216 void Picture::set_height(FLAC__uint32 value) const
1217 {
1218 FLAC__ASSERT(is_valid());
1219 object_->data.picture.height = value;
1220 }
1221
1222 void Picture::set_depth(FLAC__uint32 value) const
1223 {
1224 FLAC__ASSERT(is_valid());
1225 object_->data.picture.depth = value;
1226 }
1227
1228 void Picture::set_colors(FLAC__uint32 value) const
1229 {
1230 FLAC__ASSERT(is_valid());
1231 object_->data.picture.colors = value;
1232 }
1233
1234 bool Picture::set_data(const FLAC__byte *data, FLAC__uint32 data_length)
1235 {
1236 FLAC__ASSERT(is_valid());
1237 // We can safely const_cast since copy=true
1238 return (bool)::FLAC__metadata_object_picture_set_data(object_, const_cast<FLAC__byte*>(data), data_length, /*copy=*/true);
1239 }
1240
1241 bool Picture::is_legal(const char **violation)
1242 {
1243 FLAC__ASSERT(is_valid());
1244 return (bool)::FLAC__metadata_object_picture_is_legal(object_, violation);
1245 }
1246
1247
1248 //
1249 // Unknown
1250 //
1251
1252 Unknown::Unknown():
1253 Prototype(FLAC__metadata_object_new(FLAC__METADATA_TYPE_APPLICATION), /*copy=*/false)
1254 { }
1255
1256 Unknown::~Unknown()
1257 { }
1258
1259 const FLAC__byte *Unknown::get_data() const
1260 {
1261 FLAC__ASSERT(is_valid());
1262 return object_->data.application.data;
1263 }
1264
1265 bool Unknown::set_data(const FLAC__byte *data, unsigned length)
1266 {
1267 FLAC__ASSERT(is_valid());
1268 return (bool)::FLAC__metadata_object_application_set_data(object_, (FLAC__byte*)data, length, true);
1269 }
1270
1271 bool Unknown::set_data(FLAC__byte *data, unsigned length, bool copy)
1272 {
1273 FLAC__ASSERT(is_valid());
1274 return (bool)::FLAC__metadata_object_application_set_data(object_, data, length, copy);
1275 }
1276
1277
1278 // ============================================================
1279 //
1280 // Level 0
1281 //
1282 // ============================================================
1283
1284 FLACPP_API bool get_streaminfo(const char *filename, StreamInfo &streaminfo)
1285 {
1286 FLAC__ASSERT(0 != filename);
1287
1288 ::FLAC__StreamMetadata object;
1289
1290 if(::FLAC__metadata_get_streaminfo(filename, &object)) {
1291 streaminfo = object;
1292 return true;
1293 }
1294 else
1295 return false;
1296 }
1297
1298 FLACPP_API bool get_tags(const char *filename, VorbisComment *&tags)
1299 {
1300 FLAC__ASSERT(0 != filename);
1301
1302 ::FLAC__StreamMetadata *object;
1303
1304 tags = 0;
1305
1306 if(::FLAC__metadata_get_tags(filename, &object)) {
1307 tags = new VorbisComment(object, /*copy=*/false);
1308 return true;
1309 }
1310 else
1311 return false;
1312 }
1313
1314 FLACPP_API bool get_tags(const char *filename, VorbisComment &tags)
1315 {
1316 FLAC__ASSERT(0 != filename);
1317
1318 ::FLAC__StreamMetadata *object;
1319
1320 if(::FLAC__metadata_get_tags(filename, &object)) {
1321 tags.assign(object, /*copy=*/false);
1322 return true;
1323 }
1324 else
1325 return false;
1326 }
1327
1328 FLACPP_API bool get_cuesheet(const char *filename, CueSheet *&cuesheet)
1329 {
1330 FLAC__ASSERT(0 != filename);
1331
1332 ::FLAC__StreamMetadata *object;
1333
1334 cuesheet = 0;
1335
1336 if(::FLAC__metadata_get_cuesheet(filename, &object)) {
1337 cuesheet = new CueSheet(object, /*copy=*/false);
1338 return true;
1339 }
1340 else
1341 return false;
1342 }
1343
1344 FLACPP_API bool get_cuesheet(const char *filename, CueSheet &cuesheet)
1345 {
1346 FLAC__ASSERT(0 != filename);
1347
1348 ::FLAC__StreamMetadata *object;
1349
1350 if(::FLAC__metadata_get_cuesheet(filename, &object)) {
1351 cuesheet.assign(object, /*copy=*/false);
1352 return true;
1353 }
1354 else
1355 return false;
1356 }
1357
1358 FLACPP_API bool get_picture(const char *filename, Picture *&picture, ::FLAC__StreamMetadata_Picture_Type type, const char *mime_type, const FLAC__byte *description, unsigned max_width, unsigned max_height, unsigned max_depth, unsigned max_colors)
1359 {
1360 FLAC__ASSERT(0 != filename);
1361
1362 ::FLAC__StreamMetadata *object;
1363
1364 picture = 0;
1365
1366 if(::FLAC__metadata_get_picture(filename, &object, type, mime_type, description, max_width, max_height, max_depth, max_colors)) {
1367 picture = new Picture(object, /*copy=*/false);
1368 return true;
1369 }
1370 else
1371 return false;
1372 }
1373
1374 FLACPP_API bool get_picture(const char *filename, Picture &picture, ::FLAC__StreamMetadata_Picture_Type type, const char *mime_type, const FLAC__byte *description, unsigned max_width, unsigned max_height, unsigned max_depth, unsigned max_colors)
1375 {
1376 FLAC__ASSERT(0 != filename);
1377
1378 ::FLAC__StreamMetadata *object;
1379
1380 if(::FLAC__metadata_get_picture(filename, &object, type, mime_type, description, max_width, max_height, max_depth, max_colors)) {
1381 picture.assign(object, /*copy=*/false);
1382 return true;
1383 }
1384 else
1385 return false;
1386 }
1387
1388
1389 // ============================================================
1390 //
1391 // Level 1
1392 //
1393 // ============================================================
1394
1395 SimpleIterator::SimpleIterator():
1396 iterator_(::FLAC__metadata_simple_iterator_new())
1397 { }
1398
1399 SimpleIterator::~SimpleIterator()
1400 {
1401 clear();
1402 }
1403
1404 void SimpleIterator::clear()
1405 {
1406 if(0 != iterator_)
1407 FLAC__metadata_simple_iterator_delete(iterator_);
1408 iterator_ = 0;
1409 }
1410
1411 bool SimpleIterator::init(const char *filename, bool read_only, bool preserve_file_stats)
1412 {
1413 FLAC__ASSERT(0 != filename);
1414 FLAC__ASSERT(is_valid());
1415 return (bool)::FLAC__metadata_simple_iterator_init(iterator_, filename, read_only, preserve_file_stats);
1416 }
1417
1418 bool SimpleIterator::is_valid() const
1419 {
1420 return 0 != iterator_;
1421 }
1422
1423 SimpleIterator::Status SimpleIterator::status()
1424 {
1425 FLAC__ASSERT(is_valid());
1426 return Status(::FLAC__metadata_simple_iterator_status(iterator_));
1427 }
1428
1429 bool SimpleIterator::is_writable() const
1430 {
1431 FLAC__ASSERT(is_valid());
1432 return (bool)::FLAC__metadata_simple_iterator_is_writable(iterator_);
1433 }
1434
1435 bool SimpleIterator::next()
1436 {
1437 FLAC__ASSERT(is_valid());
1438 return (bool)::FLAC__metadata_simple_iterator_next(iterator_);
1439 }
1440
1441 bool SimpleIterator::prev()
1442 {
1443 FLAC__ASSERT(is_valid());
1444 return (bool)::FLAC__metadata_simple_iterator_prev(iterator_);
1445 }
1446
1447 //@@@@ add to tests
1448 bool SimpleIterator::is_last() const
1449 {
1450 FLAC__ASSERT(is_valid());
1451 return (bool)::FLAC__metadata_simple_iterator_is_last(iterator_);
1452 }
1453
1454 //@@@@ add to tests
1455 off_t SimpleIterator::get_block_offset() const
1456 {
1457 FLAC__ASSERT(is_valid());
1458 return ::FLAC__metadata_simple_iterator_get_block_offset(iterator_);
1459 }
1460
1461 ::FLAC__MetadataType SimpleIterator::get_block_type() const
1462 {
1463 FLAC__ASSERT(is_valid());
1464 return ::FLAC__metadata_simple_iterator_get_block_type(iterator_);
1465 }
1466
1467 //@@@@ add to tests
1468 unsigned SimpleIterator::get_block_length() const
1469 {
1470 FLAC__ASSERT(is_valid());
1471 return ::FLAC__metadata_simple_iterator_get_block_length(iterator_);
1472 }
1473
1474 //@@@@ add to tests
1475 bool SimpleIterator::get_application_id(FLAC__byte *id)
1476 {
1477 FLAC__ASSERT(is_valid());
1478 return (bool)::FLAC__metadata_simple_iterator_get_application_id(iterator_, id);
1479 }
1480
1481 Prototype *SimpleIterator::get_block()
1482 {
1483 FLAC__ASSERT(is_valid());
1484 return local::construct_block(::FLAC__metadata_simple_iterator_get_block(iterator_));
1485 }
1486
1487 bool SimpleIterator::set_block(Prototype *block, bool use_padding)
1488 {
1489 FLAC__ASSERT(0 != block);
1490 FLAC__ASSERT(is_valid());
1491 return (bool)::FLAC__metadata_simple_iterator_set_block(iterator_, block->object_, use_padding);
1492 }
1493
1494 bool SimpleIterator::insert_block_after(Prototype *block, bool use_padding)
1495 {
1496 FLAC__ASSERT(0 != block);
1497 FLAC__ASSERT(is_valid());
1498 return (bool)::FLAC__metadata_simple_iterator_insert_block_after(iterator_, block->object_, use_padding);
1499 }
1500
1501 bool SimpleIterator::delete_block(bool use_padding)
1502 {
1503 FLAC__ASSERT(is_valid());
1504 return (bool)::FLAC__metadata_simple_iterator_delete_block(iterator_, use_padding);
1505 }
1506
1507
1508 // ============================================================
1509 //
1510 // Level 2
1511 //
1512 // ============================================================
1513
1514 Chain::Chain():
1515 chain_(::FLAC__metadata_chain_new())
1516 { }
1517
1518 Chain::~Chain()
1519 {
1520 clear();
1521 }
1522
1523 void Chain::clear()
1524 {
1525 if(0 != chain_)
1526 FLAC__metadata_chain_delete(chain_);
1527 chain_ = 0;
1528 }
1529
1530 bool Chain::is_valid() const
1531 {
1532 return 0 != chain_;
1533 }
1534
1535 Chain::Status Chain::status()
1536 {
1537 FLAC__ASSERT(is_valid());
1538 return Status(::FLAC__metadata_chain_status(chain_));
1539 }
1540
1541 bool Chain::read(const char *filename, bool is_ogg)
1542 {
1543 FLAC__ASSERT(0 != filename);
1544 FLAC__ASSERT(is_valid());
1545 return is_ogg?
1546 (bool)::FLAC__metadata_chain_read_ogg(chain_, filename) :
1547 (bool)::FLAC__metadata_chain_read(chain_, filename)
1548 ;
1549 }
1550
1551 bool Chain::read(FLAC__IOHandle handle, ::FLAC__IOCallbacks callbacks, bool is_ogg)
1552 {
1553 FLAC__ASSERT(is_valid());
1554 return is_ogg?
1555 (bool)::FLAC__metadata_chain_read_ogg_with_callbacks(chain_, handle, callbacks) :
1556 (bool)::FLAC__metadata_chain_read_with_callbacks(chain_, handle, callbacks)
1557 ;
1558 }
1559
1560 bool Chain::check_if_tempfile_needed(bool use_padding)
1561 {
1562 FLAC__ASSERT(is_valid());
1563 return (bool)::FLAC__metadata_chain_check_if_tempfile_needed(chain_, use_padding);
1564 }
1565
1566 bool Chain::write(bool use_padding, bool preserve_file_stats)
1567 {
1568 FLAC__ASSERT(is_valid());
1569 return (bool)::FLAC__metadata_chain_write(chain_, use_padding, preserve_file_stats);
1570 }
1571
1572 bool Chain::write(bool use_padding, ::FLAC__IOHandle handle, ::FLAC__IOCallbacks callbacks)
1573 {
1574 FLAC__ASSERT(is_valid());
1575 return (bool)::FLAC__metadata_chain_write_with_callbacks(chain_, use_padding, handle, callbacks);
1576 }
1577
1578 bool Chain::write(bool use_padding, ::FLAC__IOHandle handle, ::FLAC__IOCallbacks callbacks, ::FLAC__IOHandle temp_handle, ::FLAC__IOCallbacks temp_callbacks)
1579 {
1580 FLAC__ASSERT(is_valid());
1581 return (bool)::FLAC__metadata_chain_write_with_callbacks_and_tempfile(chain_, use_padding, handle, callbacks, temp_handle, temp_callbacks);
1582 }
1583
1584 void Chain::merge_padding()
1585 {
1586 FLAC__ASSERT(is_valid());
1587 ::FLAC__metadata_chain_merge_padding(chain_);
1588 }
1589
1590 void Chain::sort_padding()
1591 {
1592 FLAC__ASSERT(is_valid());
1593 ::FLAC__metadata_chain_sort_padding(chain_);
1594 }
1595
1596
1597 Iterator::Iterator():
1598 iterator_(::FLAC__metadata_iterator_new())
1599 { }
1600
1601 Iterator::~Iterator()
1602 {
1603 clear();
1604 }
1605
1606 void Iterator::clear()
1607 {
1608 if(0 != iterator_)
1609 FLAC__metadata_iterator_delete(iterator_);
1610 iterator_ = 0;
1611 }
1612
1613 bool Iterator::is_valid() const
1614 {
1615 return 0 != iterator_;
1616 }
1617
1618 void Iterator::init(Chain &chain)
1619 {
1620 FLAC__ASSERT(is_valid());
1621 FLAC__ASSERT(chain.is_valid());
1622 ::FLAC__metadata_iterator_init(iterator_, chain.chain_);
1623 }
1624
1625 bool Iterator::next()
1626 {
1627 FLAC__ASSERT(is_valid());
1628 return (bool)::FLAC__metadata_iterator_next(iterator_);
1629 }
1630
1631 bool Iterator::prev()
1632 {
1633 FLAC__ASSERT(is_valid());
1634 return (bool)::FLAC__metadata_iterator_prev(iterator_);
1635 }
1636
1637 ::FLAC__MetadataType Iterator::get_block_type() const
1638 {
1639 FLAC__ASSERT(is_valid());
1640 return ::FLAC__metadata_iterator_get_block_type(iterator_);
1641 }
1642
1643 Prototype *Iterator::get_block()
1644 {
1645 FLAC__ASSERT(is_valid());
1646 Prototype *block = local::construct_block(::FLAC__metadata_iterator_get_block(iterator_));
1647 if(0 != block)
1648 block->set_reference(true);
1649 return block;
1650 }
1651
1652 bool Iterator::set_block(Prototype *block)
1653 {
1654 FLAC__ASSERT(0 != block);
1655 FLAC__ASSERT(is_valid());
1656 bool ret = (bool)::FLAC__metadata_iterator_set_block(iterator_, block->object_);
1657 if(ret) {
1658 block->set_reference(true);
1659 delete block;
1660 }
1661 return ret;
1662 }
1663
1664 bool Iterator::delete_block(bool replace_with_padding)
1665 {
1666 FLAC__ASSERT(is_valid());
1667 return (bool)::FLAC__metadata_iterator_delete_block(iterator_, replace_with_padding);
1668 }
1669
1670 bool Iterator::insert_block_before(Prototype *block)
1671 {
1672 FLAC__ASSERT(0 != block);
1673 FLAC__ASSERT(is_valid());
1674 bool ret = (bool)::FLAC__metadata_iterator_insert_block_before(iterator_, block->object_);
1675 if(ret) {
1676 block->set_reference(true);
1677 delete block;
1678 }
1679 return ret;
1680 }
1681
1682 bool Iterator::insert_block_after(Prototype *block)
1683 {
1684 FLAC__ASSERT(0 != block);
1685 FLAC__ASSERT(is_valid());
1686 bool ret = (bool)::FLAC__metadata_iterator_insert_block_after(iterator_, block->object_);
1687 if(ret) {
1688 block->set_reference(true);
1689 delete block;
1690 }
1691 return ret;
1692 }
1693
1694 }
1695 }