summaryrefslogtreecommitdiff
path: root/libsi/descriptor.c
blob: d27da2b76291f6ebf9ce7ead6c62394694ac40f5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
/***************************************************************************
 *       Copyright (c) 2003 by Marcel Wiesweg                              *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   $Id: descriptor.c 1.16 2006/02/18 10:38:20 kls Exp $
 *                                                                         *
 ***************************************************************************/

#include <string.h>
#include "descriptor.h"

namespace SI {

void ShortEventDescriptor::Parse() {
   int offset=0;
   const descr_short_event *s;
   data.setPointerAndOffset<const descr_short_event>(s, offset);
   languageCode[0]=s->lang_code1;
   languageCode[1]=s->lang_code2;
   languageCode[2]=s->lang_code3;
   languageCode[3]=0;
   name.setDataAndOffset(data+offset, s->event_name_length, offset);
   const descr_short_event_mid *mid;
   data.setPointerAndOffset<const descr_short_event_mid>(mid, offset);
   text.setData(data+offset, mid->text_length);
}

int ExtendedEventDescriptor::getDescriptorNumber() {
   return s->descriptor_number;
}

int ExtendedEventDescriptor::getLastDescriptorNumber() {
   return s->last_descriptor_number;
}

void ExtendedEventDescriptor::Parse() {
   int offset=0;
   data.setPointerAndOffset<const descr_extended_event>(s, offset);
   languageCode[0]=s->lang_code1;
   languageCode[1]=s->lang_code2;
   languageCode[2]=s->lang_code3;
   languageCode[3]=0;
   itemLoop.setDataAndOffset(data+offset, s->length_of_items, offset);
   const descr_extended_event_mid *mid;
   data.setPointerAndOffset<const descr_extended_event_mid>(mid, offset);
   text.setData(data+offset, mid->text_length);
}

void ExtendedEventDescriptor::Item::Parse() {
   int offset=0;
   const item_extended_event *first;
   data.setPointerAndOffset<const item_extended_event>(first, offset);
   itemDescription.setDataAndOffset(data+offset, first->item_description_length, offset);
   const item_extended_event_mid *mid;
   data.setPointerAndOffset<const item_extended_event_mid>(mid, offset);
   item.setData(data+offset, mid->item_length);
}

/*int ExtendedEventDescriptors::getTextLength() {
   int ret=0;
   for (int i=0;i<length;i++) {
      ExtendedEventDescriptor *d=(ExtendedEventDescriptor *)array[i];
      if (!d)
         continue;
      ret+=d->text.getLength();
      ExtendedEventDescriptor::Item item;
      for (Loop::Iterator it; d->itemLoop.hasNext(it);   ) {
         item=d->itemLoop.getNext(it);
         ret+=item.item.getLength();
         ret+=item.itemDescription.getLength();
         ret+=2; //the blanks
      }
   }
   return ret;
}*/

int ExtendedEventDescriptors::getMaximumTextLength(const char *separation1, const char *separation2) {
   //add length of plain text, of itemized text with separators, and for one separator between the two fields.
   return getMaximumTextPlainLength()+getMaximumTextItemizedLength(separation1, separation2)+strlen(separation2);
}

char *ExtendedEventDescriptors::getText(const char *separation1, const char *separation2) {
   int size = getMaximumTextLength(separation1, separation2);
   char *text=new char[size];
   return getText(text, size, separation1, separation2);
}

char *ExtendedEventDescriptors::getText(char *buffer, int size, const char *separation1, const char *separation2) {
   int index=0, len;
   for (int i=0;i<length;i++) {
      ExtendedEventDescriptor *d=(ExtendedEventDescriptor *)array[i];
      if (!d)
         continue;
      d->text.getText(buffer+index, size);
      len = strlen(buffer+index);
      index += len;
      size -= len;
   }

   int sepLen1 = strlen(separation1);
   int sepLen2 = strlen(separation2);
   bool separated = false;
   for (int i=0;i<length;i++) {
      ExtendedEventDescriptor *d=(ExtendedEventDescriptor *)array[i];
      if (!d)
         continue;

      ExtendedEventDescriptor::Item item;
      for (Loop::Iterator it; d->itemLoop.getNext(item, it);   ) {
         if (!separated && size > sepLen2) {
            strcpy(buffer+index, separation2); // let's have a separator between the long text and the items
            index += sepLen2;
            size -= sepLen2;
            separated = true;
         }

         item.itemDescription.getText(buffer+index, size);
         len = strlen(buffer+index);
         index += len;
         size -= len;
         if (size > sepLen1) {
            strcpy(buffer+index, separation1);
            index += sepLen1;
            size -= sepLen1;
         }

         item.item.getText(buffer+index, size);
         len = strlen(buffer+index);
         index += len;
         size -= len;
         if (size > sepLen2) {
            strcpy(buffer+index, separation2);
            index += sepLen2;
            size -= sepLen2;
         }
      }
   }

   buffer[index]='\0';
   return buffer;
}

int ExtendedEventDescriptors::getMaximumTextPlainLength() {
   int ret=0;
   for (int i=0;i<length;i++) {
      ExtendedEventDescriptor *d=(ExtendedEventDescriptor *)array[i];
      if (!d)
         continue;
      ret+=d->text.getLength();
   }
   return ret;
}

char *ExtendedEventDescriptors::getTextPlain() {
   int size = getMaximumTextPlainLength();
   char *text=new char[size];
   return getTextPlain(text, size);
}

char *ExtendedEventDescriptors::getTextPlain(char *buffer, int size) {
   int index=0, len;
   for (int i=0;i<length;i++) {
      ExtendedEventDescriptor *d=(ExtendedEventDescriptor *)array[i];
      if (!d)
         continue;
      d->text.getText(buffer+index, size);
      len = strlen(buffer+index);
      index += len;
      size -= len;
   }
   buffer[index]='\0';
   return buffer;
}

int ExtendedEventDescriptors::getMaximumTextItemizedLength(const char *separation1, const char *separation2) {
   int ret=0;
   int sepLength=strlen(separation1)+strlen(separation2);
   for (int i=0;i<length;i++) {
      ExtendedEventDescriptor *d=(ExtendedEventDescriptor *)array[i];
      if (!d)
         continue;
      //The length includes two 8-bit length fields which have already been subtracted from sepLength //XXX kls 2004-06-06: what does this mean???
      ret+=d->itemLoop.getLength()+sepLength;
   }
   return ret;
}

char *ExtendedEventDescriptors::getTextItemized(const char *separation1, const char *separation2) {
   int size = getMaximumTextItemizedLength(separation1, separation2);
   char *text=new char[size];
   return getTextItemized(text, size, separation1, separation2);
}

char *ExtendedEventDescriptors::getTextItemized(char *buffer, int size, const char *separation1, const char *separation2) {
   int index=0, len;
   int sepLen1 = strlen(separation1);
   int sepLen2 = strlen(separation2);
   for (int i=0;i<length;i++) {
      ExtendedEventDescriptor *d=(ExtendedEventDescriptor *)array[i];
      if (!d)
         continue;

      ExtendedEventDescriptor::Item item;
      for (Loop::Iterator it; d->itemLoop.getNext(item, it);   ) {
         item.itemDescription.getText(buffer+index, size);
         len = strlen(buffer+index);
         index += len;
         size -= len;
         if (size > sepLen1) {
            strcpy(buffer+index, separation1);
            index += sepLen1;
            size -= sepLen1;
         }

         item.item.getText(buffer+index, size);
         len = strlen(buffer+index);
         index += len;
         size -= len;
         if (size > sepLen2) {
            strcpy(buffer+index, separation2);
            index += sepLen2;
            size -= sepLen2;
         }
      }
   }
   buffer[index]='\0';
   return buffer;
}

//returns the itemized text pair by pair. Maximum length for buffers is 256.
//Return value is false if and only if the end of the list is reached.
bool ExtendedEventDescriptors::getTextItemized(Loop::Iterator &it, bool &valid, char *itemDescription, char *itemText, int sizeItemDescription, int sizeItemText) {
   //The iterator has to store two values: The descriptor index (4bit)
   //and the item loop index (max overall length 256, min item length 16 => max number 128 => 7bit)
   valid=false;

   int index=(it.i & 0x780) >> 7; // 0x780 == 1111 000 0000
   it.i &= 0x7F; //0x7F == 111 1111

   for (;index<length;index++) {
      ExtendedEventDescriptor *d=(ExtendedEventDescriptor *)array[index];
      if (!d)
         continue;

      ExtendedEventDescriptor::Item item;
      if (d->itemLoop.getNext(item, it)) {
         item.item.getText(itemDescription, sizeItemDescription);
         item.itemDescription.getText(itemText, sizeItemText);
         valid=true;
         break;
      } else {
         it.reset();
         continue;
      }
   }

   it.i &= 0x7F;
   it.i |= (index & 0xF) << 7; //0xF == 1111

   return index<length;
}

int TimeShiftedEventDescriptor::getReferenceServiceId() const {
   return HILO(s->reference_service_id);
}

int TimeShiftedEventDescriptor::getReferenceEventId() const {
   return HILO(s->reference_event_id);
}

void TimeShiftedEventDescriptor::Parse() {
   s=data.getData<const descr_time_shifted_event>();
}

void ContentDescriptor::Parse() {
   //this descriptor is only a header and a loop
   nibbleLoop.setData(data+sizeof(descr_content), getLength()-sizeof(descr_content));
}

int ContentDescriptor::Nibble::getContentNibbleLevel1() const {
   return s->content_nibble_level_1;
}

int ContentDescriptor::Nibble::getContentNibbleLevel2() const {
   return s->content_nibble_level_2;
}

int ContentDescriptor::Nibble::getUserNibble1() const {
   return s->user_nibble_1;
}

int ContentDescriptor::Nibble::getUserNibble2() const {
   return s->user_nibble_2;
}

void ContentDescriptor::Nibble::Parse() {
   s=data.getData<const nibble_content>();
}

void ParentalRatingDescriptor::Parse() {
   //this descriptor is only a header and a loop
   ratingLoop.setData(data+sizeof(descr_parental_rating), getLength()-sizeof(descr_parental_rating));
}

int ParentalRatingDescriptor::Rating::getRating() const {
   return s->rating;
}

void ParentalRatingDescriptor::Rating::Parse() {
   s=data.getData<const parental_rating>();
   languageCode[0]=s->lang_code1;
   languageCode[1]=s->lang_code2;
   languageCode[2]=s->lang_code3;
   languageCode[3]=0;
}

int CaDescriptor::getCaType() const {
   return HILO(s->CA_type);
}

int CaDescriptor::getCaPid() const {
   return HILO(s->CA_PID);
}

void CaDescriptor::Parse() {
   int offset=0;
   data.setPointerAndOffset<const descr_ca>(s, offset);
   privateData.assign(data.getData(offset), getLength()-offset);
}

int StreamIdentifierDescriptor::getComponentTag() const {
   return s->component_tag;
}

void StreamIdentifierDescriptor::Parse() {
   s=data.getData<const descr_stream_identifier>();
}

void NetworkNameDescriptor::Parse() {
   name.setData(data+sizeof(descr_network_name), getLength()-sizeof(descr_network_name));
}

void CaIdentifierDescriptor::Parse() {
   identifiers.setData(data+sizeof(descr_ca_identifier), getLength()-sizeof(descr_ca_identifier));
}

int CarouselIdentifierDescriptor::getCarouselId() const {
   return (HILO(s->carousel_id_hi) << 16) | HILO(s->carousel_id_lo);
}

int CarouselIdentifierDescriptor::getFormatId() const {
   return s->FormatId;
}

void CarouselIdentifierDescriptor::Parse() {
   s=data.getData<const descr_carousel_identifier>();
}

void ServiceListDescriptor::Parse() {
   serviceLoop.setData(data+sizeof(descr_service_list), getLength()-sizeof(descr_service_list));
}

int ServiceListDescriptor::Service::getServiceId() const {
   return HILO(s->service_id);
}

int ServiceListDescriptor::Service::getServiceType() const {
   return s->service_type;
}

void ServiceListDescriptor::Service::Parse() {
   s=data.getData<const descr_service_list_loop>();
}

int SatelliteDeliverySystemDescriptor::getFrequency() const {
   return (HILO(s->frequency_hi) << 16) | HILO(s->frequency_lo);
}

int SatelliteDeliverySystemDescriptor::getOrbitalPosition() const {
   return HILO(s->orbital_position);
}

int SatelliteDeliverySystemDescriptor::getWestEastFlag() const {
   return s->west_east_flag;
}

int SatelliteDeliverySystemDescriptor::getPolarization() const {
   return s->polarization;
}

int SatelliteDeliverySystemDescriptor::getModulation() const {
   return s->modulation;
}

int SatelliteDeliverySystemDescriptor::getSymbolRate() const {
   return (HILO(s->symbol_rate_hi) << 12) | (s->symbol_rate_lo_1 << 4) | s->symbol_rate_lo_2;
}

int SatelliteDeliverySystemDescriptor::getFecInner() const {
   return s->fec_inner;
}

void SatelliteDeliverySystemDescriptor::Parse() {
   s=data.getData<const descr_satellite_delivery_system>();
}

int CableDeliverySystemDescriptor::getFrequency() const {
   return (HILO(s->frequency_hi) << 16) | HILO(s->frequency_lo);
}

int CableDeliverySystemDescriptor::getFecOuter() const {
   return s->fec_outer;
}

int CableDeliverySystemDescriptor::getModulation() const {
   return s->modulation;
}

int CableDeliverySystemDescriptor::getSymbolRate() const {
   return (HILO(s->symbol_rate_hi) << 12) | (s->symbol_rate_lo_1 << 4) | s->symbol_rate_lo_2;
}

int CableDeliverySystemDescriptor::getFecInner() const {
   return s->fec_inner;
}

void CableDeliverySystemDescriptor::Parse() {
   s=data.getData<const descr_cable_delivery_system>();
}

int TerrestrialDeliverySystemDescriptor::getFrequency() const {
   return (HILO(s->frequency_hi) << 16) | HILO(s->frequency_lo);
}

int TerrestrialDeliverySystemDescriptor::getBandwidth() const {
   return s->bandwidth;
}

int TerrestrialDeliverySystemDescriptor::getConstellation() const {
   return s->constellation;
}

int TerrestrialDeliverySystemDescriptor::getHierarchy() const {
   return s->hierarchy;
}

int TerrestrialDeliverySystemDescriptor::getCodeRateHP() const {
   return s->code_rate_HP;
}

int TerrestrialDeliverySystemDescriptor::getCodeRateLP() const {
   return s->code_rate_LP;
}

int TerrestrialDeliverySystemDescriptor::getGuardInterval() const {
   return s->guard_interval;
}

int TerrestrialDeliverySystemDescriptor::getTransmissionMode() const {
   return s->transmission_mode;
}

bool TerrestrialDeliverySystemDescriptor::getOtherFrequency() const {
   return s->other_frequency_flag;
}

void TerrestrialDeliverySystemDescriptor::Parse() {
   s=data.getData<const descr_terrestrial_delivery>();
}

int ServiceDescriptor::getServiceType() const {
   return s->service_type;
}

void ServiceDescriptor::Parse() {
   int offset=0;
   data.setPointerAndOffset<const descr_service>(s, offset);
   providerName.setDataAndOffset(data+offset, s->provider_name_length, offset);
   const descr_service_mid *mid;
   data.setPointerAndOffset<const descr_service_mid>(mid, offset);
   serviceName.setData(data+offset, mid->service_name_length);
}

void NVODReferenceDescriptor::Parse() {
   serviceLoop.setData(data+sizeof(descr_nvod_reference), getLength()-sizeof(descr_nvod_reference));
}

int NVODReferenceDescriptor::Service::getTransportStream() const {
   return HILO(s->transport_stream_id);
}

int NVODReferenceDescriptor::Service::getOriginalNetworkId() const {
   return HILO(s->original_network_id);
}

int NVODReferenceDescriptor::Service::getServiceId() const {
   return HILO(s->service_id);
}

void NVODReferenceDescriptor::Service::Parse() {
   s=data.getData<const item_nvod_reference>();
}

int TimeShiftedServiceDescriptor::getReferenceServiceId() const {
   return HILO(s->reference_service_id);
}

void TimeShiftedServiceDescriptor::Parse() {
   s=data.getData<const descr_time_shifted_service>();
}

int ComponentDescriptor::getStreamContent() const {
   return s->stream_content;
}

int ComponentDescriptor::getComponentType() const {
   return s->component_type;
}

int ComponentDescriptor::getComponentTag() const {
   return s->component_tag;
}

void ComponentDescriptor::Parse() {
   int offset=0;
   data.setPointerAndOffset<const descr_component>(s, offset);
   languageCode[0]=s->lang_code1;
   languageCode[1]=s->lang_code2;
   languageCode[2]=s->lang_code3;
   languageCode[3]=0;
   description.setData(data+offset, getLength()-offset);
}

void SubtitlingDescriptor::Parse() {
   subtitlingLoop.setData(data+sizeof(descr_subtitling), getLength()-sizeof(descr_subtitling));
}

int SubtitlingDescriptor::Subtitling::getSubtitlingType() const {
   return s->subtitling_type;
}

int SubtitlingDescriptor::Subtitling::getCompositionPageId() const {
   return HILO(s->composition_page_id);
}

int SubtitlingDescriptor::Subtitling::getAncillaryPageId() const {
   return HILO(s->ancillary_page_id);
}

void SubtitlingDescriptor::Subtitling::Parse() {
   s=data.getData<const item_subtitling>();
   languageCode[0]=s->lang_code1;
   languageCode[1]=s->lang_code2;
   languageCode[2]=s->lang_code3;
   languageCode[3]=0;
}

int ServiceMoveDescriptor::getNewOriginalNetworkId() const {
   return HILO(s->new_original_network_id);
}

int ServiceMoveDescriptor::getNewTransportStreamId() const {
   return HILO(s->new_transport_stream_id);
}

int ServiceMoveDescriptor::getNewServiceId() const {
   return HILO(s->new_service_id);
}

void ServiceMoveDescriptor::Parse() {
   s=data.getData<const descr_service_move>();
}

int FrequencyListDescriptor::getCodingType() const {
   return s->coding_type;
}

void FrequencyListDescriptor::Parse() {
   int offset=0;
   data.setPointerAndOffset<const descr_frequency_list>(s, offset);
   frequencies.setData(data+offset, getLength()-offset);
}

void ServiceIdentifierDescriptor::Parse() {
   textualServiceIdentifier.setData(data+sizeof(descr_service_identifier), getLength()-sizeof(descr_service_identifier));
}

void MultilingualNameDescriptor::Parse() {
   nameLoop.setData(data+sizeof(descr_multilingual_network_name), getLength()-sizeof(descr_multilingual_network_name));
}

void MultilingualNameDescriptor::Name::Parse() {
   int offset=0;
   const entry_multilingual_name *s;
   data.setPointerAndOffset<const entry_multilingual_name>(s, offset);
   languageCode[0]=s->lang_code1;
   languageCode[1]=s->lang_code2;
   languageCode[2]=s->lang_code3;
   languageCode[3]=0;
   name.setData(data+offset, s->text_length);
}

int MultilingualComponentDescriptor::getComponentTag() const {
   return s->component_tag;
}

void MultilingualComponentDescriptor::Parse() {
   int offset=0;
   data.setPointerAndOffset<const descr_multilingual_component>(s, offset);
   nameLoop.setData(data+sizeof(descr_multilingual_component), getLength()-sizeof(descr_multilingual_component));
}

void MultilingualServiceNameDescriptor::Parse() {
   nameLoop.setData(data+sizeof(descr_multilingual_network_name), getLength()-sizeof(descr_multilingual_network_name));
}

void MultilingualServiceNameDescriptor::Name::Parse() {
   int offset=0;
   const entry_multilingual_name *s;
   data.setPointerAndOffset<const entry_multilingual_name>(s, offset);
   languageCode[0]=s->lang_code1;
   languageCode[1]=s->lang_code2;
   languageCode[2]=s->lang_code3;
   languageCode[3]=0;
   providerName.setDataAndOffset(data+offset, s->text_length, offset);
   const entry_multilingual_service_name_mid *mid;
   data.setPointerAndOffset<const entry_multilingual_service_name_mid>(mid, offset);
   name.setData(data+offset, mid->service_name_length);
}

void LinkageDescriptor::Parse() {
   int offset=0;
   data.setPointerAndOffset<const descr_linkage>(s, offset);
   privateData.assign(data.getData(offset), getLength()-offset);
}

int LinkageDescriptor::getTransportStreamId() const {
   return HILO(s->transport_stream_id);
}

int LinkageDescriptor::getOriginalNetworkId() const {
   return HILO(s->original_network_id);
}

int LinkageDescriptor::getServiceId() const {
   return HILO(s->service_id);
}

LinkageType LinkageDescriptor::getLinkageType() const {
   return (LinkageType)s->linkage_type;
}

void ISO639LanguageDescriptor::Parse() {
   languageLoop.setData(data+sizeof(descr_iso_639_language), getLength()-sizeof(descr_iso_639_language));
   
   //all this is for backwards compatibility only
   Loop::Iterator it;
   Language first;
   if (languageLoop.getNext(first, it)) {
      languageCode[0]=first.languageCode[0];
      languageCode[1]=first.languageCode[1];
      languageCode[2]=first.languageCode[2];
      languageCode[3]=0;
   } else
      languageCode[0]=0;
}

void ISO639LanguageDescriptor::Language::Parse() {
   s=data.getData<const descr_iso_639_language_loop>();
   languageCode[0]=s->lang_code1;
   languageCode[1]=s->lang_code2;
   languageCode[2]=s->lang_code3;
   languageCode[3]=0;
}

AudioType ISO639LanguageDescriptor::Language::getAudioType() {
   return (AudioType)s->audio_type;
}

void PDCDescriptor::Parse() {
   int offset=0;
   data.setPointerAndOffset<const descr_pdc>(s, offset);
}

int PDCDescriptor::getDay() const {
   return ((s->pil0 & 0x0F) << 1) | ((s->pil1 & 0x80) >> 7);
}

int PDCDescriptor::getMonth() const {
   return (s->pil1 >> 3) & 0x0F;
}

int PDCDescriptor::getHour() const {
   return ((s->pil1 & 0x07) << 2) | ((s->pil2 & 0xC0) >> 6);
}

int PDCDescriptor::getMinute() const {
   return s->pil2 & 0x3F;
}

void ApplicationSignallingDescriptor::Parse() {
   entryLoop.setData(data+sizeof(descr_application_signalling), getLength()-sizeof(descr_application_signalling));
}

int ApplicationSignallingDescriptor::ApplicationEntryDescriptor::getApplicationType() const {
   return HILO(s->application_type);
}

int ApplicationSignallingDescriptor::ApplicationEntryDescriptor::getAITVersionNumber() const {
   return s->AIT_version_number;
}

void ApplicationSignallingDescriptor::ApplicationEntryDescriptor::Parse() {
   s=data.getData<const application_signalling_entry>();
}

bool MHP_ApplicationDescriptor::isServiceBound() const {
   return s->service_bound_flag;
}

int MHP_ApplicationDescriptor::getVisibility() const {
   return s->visibility;
}

int MHP_ApplicationDescriptor::getApplicationPriority() const {
   return s->application_priority;
}

void MHP_ApplicationDescriptor::Parse() {
   int offset=0;
   const descr_application *dapp;
   data.setPointerAndOffset<const descr_application>(dapp, offset);
   profileLoop.setDataAndOffset(data+offset, dapp->application_profiles_length, offset);
   data.setPointerAndOffset<const descr_application_end>(s, offset);
   transportProtocolLabels.setData(data+offset, getLength()-offset);
}

int MHP_ApplicationDescriptor::Profile::getApplicationProfile() const {
      return HILO(s->application_profile);
}

int MHP_ApplicationDescriptor::Profile::getVersionMajor() const {
      return s->version_major;
}

int MHP_ApplicationDescriptor::Profile::getVersionMinor() const {
      return s->version_minor;
}

int MHP_ApplicationDescriptor::Profile::getVersionMicro() const {
      return s->version_micro;
}

void MHP_ApplicationDescriptor::Profile::Parse() {
   s=data.getData<application_profile_entry>();
}

void MHP_ApplicationNameDescriptor::Parse() {
   nameLoop.setData(data+sizeof(descr_application_name), getLength()-sizeof(descr_application_name));
}

void MHP_ApplicationNameDescriptor::NameEntry::Parse() {
   const descr_application_name_entry *s;
   s=data.getData<const descr_application_name_entry>();
   name.setData(data+sizeof(descr_application_name_entry), s->application_name_length);
   languageCode[0]=s->lang_code1;
   languageCode[1]=s->lang_code2;
   languageCode[2]=s->lang_code3;
   languageCode[3]=0;
}

int MHP_TransportProtocolDescriptor::getProtocolId() const {
   return HILO(s->protocol_id);
}

int MHP_TransportProtocolDescriptor::getProtocolLabel() const {
   return s->transport_protocol_label;
}

bool MHP_TransportProtocolDescriptor::isRemote() const {
   return remote;
}

int MHP_TransportProtocolDescriptor::getComponentTag() const {
   return componentTag;
}

void MHP_TransportProtocolDescriptor::Parse() {
   int offset=0;
   data.setPointerAndOffset<const descr_transport_protocol>(s, offset);
   if (getProtocolId() == ObjectCarousel) {
      const transport_via_oc *oc;
      data.setPointerAndOffset<const transport_via_oc>(oc, offset);
      remote=oc->remote;
      if (remote) {
         const transport_via_oc_remote_end *rem;
         data.setPointerAndOffset<const transport_via_oc_remote_end>(rem, offset);
         componentTag=rem->component_tag;
      } else {
         const transport_via_oc_end *rem;
         data.setPointerAndOffset<const transport_via_oc_end>(rem, offset);
         componentTag=rem->component_tag;
      }
   } else { //unimplemented
      remote=false;
      componentTag=-1;
   }
}

void MHP_DVBJApplicationDescriptor::Parse() {
   applicationLoop.setData(data+sizeof(descr_dvbj_application), getLength()-sizeof(descr_dvbj_application));
}

void MHP_DVBJApplicationDescriptor::ApplicationEntry::Parse() {
   const descr_dvbj_application_entry *entry=data.getData<const descr_dvbj_application_entry>();
   parameter.setData(data+sizeof(descr_dvbj_application_entry), entry->parameter_length);
}

void MHP_DVBJApplicationLocationDescriptor::Parse() {
   int offset=0;
   const descr_dvbj_application_location *first;
   data.setPointerAndOffset<const descr_dvbj_application_location>(first, offset);
   baseDirectory.setDataAndOffset(data+offset, first->base_directory_length, offset);
   const descr_dvbj_application_location_mid *mid;
   data.setPointerAndOffset<const descr_dvbj_application_location_mid>(mid, offset);
   classPath.setDataAndOffset(data+offset, mid->classpath_extension_length, offset);
   initialClass.setData(data+offset, getLength()-offset);
}

int MHP_ApplicationIconsDescriptor::getIconFlags() const {
   return HILO(s->icon_flags);
}

void MHP_ApplicationIconsDescriptor::Parse() {
   int offset=0;
   const descr_application_icons_descriptor *first;
   data.setPointerAndOffset<const descr_application_icons_descriptor>(first, offset);
   iconLocator.setDataAndOffset(data+offset, first->icon_locator_length, offset);
   data.setPointerAndOffset<const descr_application_icons_descriptor_end>(s, offset);
}

} //end of namespace