8 int parseSDThead(unsigned char *data, SDThead *h) {
11 memset(h, 0, sizeof(SDThead));
14 h->table_id = getBit(data, &boff, 8);
15 h->section_syntax_indicator = getBit(data, &boff, 1);
16 h->reserved_future_use1 = getBit(data, &boff, 1);
17 h->reserved1 = getBit(data, &boff, 2);
18 h->section_length = getBit(data, &boff, 12);
19 h->transport_stream_id = getBit(data, &boff, 16);
20 h->reserved2 = getBit(data, &boff, 2);
21 h->version_number = getBit(data, &boff, 5);
22 h->current_next_indicator = getBit(data, &boff, 1);
23 h->section_number = getBit(data, &boff, 8);
24 h->last_section_number = getBit(data, &boff, 8);
25 h->original_network_id = getBit(data, &boff, 16);
26 h->reserved_future_use2 = getBit(data, &boff, 8);
31 int parseSDTbody(unsigned char *data, SDTbody *b) {
34 memset(b, 0, sizeof(SDTbody));
36 b->service_id = getBit(data, &boff, 16);
37 b->reserved_future_use1 = getBit(data, &boff, 3);
38 b->EIT_user_defined_flags = getBit(data, &boff, 3);
39 b->EIT_schedule_flag = getBit(data, &boff, 1);
40 b->EIT_present_following_flag = getBit(data, &boff, 1);
41 b->running_status = getBit(data, &boff, 3);
42 b->free_CA_mode = getBit(data, &boff, 1);
43 b->descriptors_loop_length = getBit(data, &boff, 12);
48 int parseSVCdesc(unsigned char *data, SVCdesc *desc) {
51 memset(desc, 0, sizeof(SVCdesc));
53 desc->descriptor_tag = getBit(data, &boff, 8);
54 desc->descriptor_length = getBit(data, &boff, 8);
55 desc->service_type = getBit(data, &boff, 8);
56 desc->service_provider_name_length = getBit(data, &boff, 8);
57 getStr(desc->service_provider_name, data, &boff, desc->service_provider_name_length);
58 desc->service_name_length = getBit(data, &boff, 8);
59 getStr(desc->service_name, data, &boff, desc->service_name_length);
61 return desc->descriptor_length + 2;
63 int serachid(SVT_CONTROL *top, int service_id)
65 SVT_CONTROL *cur = top ;
67 if(cur->event_id == service_id){
75 void enqueue_sdt(SVT_CONTROL *top, SVT_CONTROL *sdtptr)
79 if(top->next == NULL){
86 if(sdtptr->event_id < cur->event_id){
87 if(cur->prev != NULL){
88 cur->prev->next = sdtptr ;
89 sdtptr->prev = cur->prev ;
95 if(cur->next == NULL){
106 void dumpSDT(unsigned char *ptr, SVT_CONTROL *top)
112 SVT_CONTROL *svtptr ;
119 len = parseSDThead(ptr, &sdth);
121 loop_len = sdth.section_length - (len - 3 + 4); // 3¤Ï¶¦Ḁ̈إåÀĹ 4¤ÏCRC
122 while(loop_len > 0) {
123 len = parseSDTbody(ptr, &sdtb);
126 parseSVCdesc(ptr, &desc);
128 rc = serachid(top, sdtb.service_id);
130 svtptr = calloc(1, sizeof(SVT_CONTROL));
131 svtptr->event_id = sdtb.service_id;
132 svtptr->original_network_id = sdth.original_network_id;
133 svtptr->transport_stream_id = sdth.transport_stream_id;
134 svtptr->event_id = sdtb.service_id;
135 memcpy(svtptr->servicename, desc.service_name, strlen(desc.service_name));
136 enqueue_sdt(top, svtptr);
138 printf("SDT=%s,%d,%x,%x,%x,%x,%x,%x,%x\n",
139 desc.service_name, sdtb.service_id, sdtb.reserved_future_use1,
140 sdtb.EIT_user_defined_flags, sdtb.EIT_schedule_flag, sdtb.EIT_present_following_flag,
141 sdtb.running_status, sdtb.free_CA_mode, sdtb.descriptors_loop_length);
144 0x01:
\83f
\83W
\83^
\83\8bTV
\83T
\81[
\83r
\83X
145 0xA5:
\83v
\83\8d\83\82\81[
\83V
\83\87\83\93\89f
\91\9c\83T
\81[
\83r
\83X
146 0x0C:
\83f
\81[
\83^
\83T
\81[
\83r
\83X
148 printf("SDT=(%x:%x)%s,%d,%d,%d,%d,%d(%d,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x)\n",
149 sdth.table_id, desc.service_type,
150 desc.service_name, sdtb.service_id,
151 desc.descriptor_tag, desc.descriptor_length, desc.service_type,
152 desc.service_provider_name_length, desc.service_name_length,
153 sdth.table_id, sdth.section_syntax_indicator, sdth.reserved_future_use1,
154 sdth.reserved1, sdth.section_length, sdth.transport_stream_id,
155 sdth.reserved2, sdth.version_number, sdth.current_next_indicator,
156 sdth.section_number, sdth.last_section_number, sdth.original_network_id,
157 sdth.reserved_future_use2);
161 ptr += sdtb.descriptors_loop_length;
162 loop_len -= sdtb.descriptors_loop_length;