2 #include <lib/dvb/db.h>
3 #include <lib/dvb/frontend.h>
4 #include <lib/base/eerror.h>
5 #include <lib/base/estring.h>
6 #include <dvbsi++/service_description_section.h>
7 #include <dvbsi++/descriptor_tag.h>
8 #include <dvbsi++/service_descriptor.h>
9 #include <dvbsi++/satellite_delivery_system_descriptor.h>
11 DEFINE_REF(eDVBService);
13 eDVBService::eDVBService()
17 eDVBService::~eDVBService()
21 eDVBService &eDVBService::operator=(const eDVBService &s)
23 m_service_name = s.m_service_name;
24 m_provider_name = s.m_provider_name;
31 RESULT eDVBService::getName(const eServiceReference &ref, std::string &name)
33 name = convertDVBUTF8(m_service_name);
37 int eDVBService::getLength(const eServiceReference &ref)
42 int eDVBService::checkFilter(const eServiceReferenceDVB &ref, const eDVBChannelQuery &query)
47 case eDVBChannelQuery::tName:
48 res = m_service_name.find(query.m_string) != std::string::npos;
50 case eDVBChannelQuery::tProvider:
51 res = m_provider_name.find(query.m_string) != std::string::npos;
53 case eDVBChannelQuery::tType:
54 res = ref.getServiceType() == query.m_int;
56 case eDVBChannelQuery::tBouquet:
59 case eDVBChannelQuery::tSatellitePosition:
60 res = (ref.getDVBNamespace().get() >> 16) == query.m_int;
62 case eDVBChannelQuery::tChannelID:
65 ref.getChannelID(chid);
66 res = chid == query.m_channelid;
69 case eDVBChannelQuery::tAND:
70 res = checkFilter(ref, *query.m_p1) && checkFilter(ref, *query.m_p2);
72 case eDVBChannelQuery::tOR:
73 res = checkFilter(ref, *query.m_p1) || checkFilter(ref, *query.m_p2);
83 int eDVBService::getCachePID(cacheID id)
85 std::map<int, int>::iterator it = m_cache.find(id);
86 if ( it != m_cache.end() )
91 void eDVBService::setCachePID(cacheID id, int pid)
98 /* THIS CODE IS BAD. it should be replaced by somethine better. */
101 eDebug("---- opening lame channel db");
102 FILE *f=fopen("lamedb", "rt");
106 if ((!fgets(line, 256, f)) || strncmp(line, "eDVB services", 13))
108 eDebug("not a servicefile");
112 eDebug("reading services");
113 if ((!fgets(line, 256, f)) || strcmp(line, "transponders\n"))
115 eDebug("services invalid, no transponders");
120 // clear all transponders
124 if (!fgets(line, 256, f))
126 if (!strcmp(line, "end\n"))
128 int dvb_namespace=-1, transport_stream_id=-1, original_network_id=-1;
129 sscanf(line, "%x:%x:%x", &dvb_namespace, &transport_stream_id, &original_network_id);
130 if (original_network_id == -1)
132 eDVBChannelID channelid = eDVBChannelID(
133 eDVBNamespace(dvb_namespace),
134 eTransportStreamID(transport_stream_id),
135 eOriginalNetworkID(original_network_id));
137 ePtr<eDVBFrontendParameters> feparm = new eDVBFrontendParameters;
141 if (!strcmp(line, "/\n"))
145 eDVBFrontendParametersSatellite sat;
146 int frequency, symbol_rate, polarisation, fec, orbital_position, inversion;
147 sscanf(line+2, "%d:%d:%d:%d:%d:%d", &frequency, &symbol_rate, &polarisation, &fec, &inversion, &orbital_position);
148 sat.frequency = frequency;
149 sat.symbol_rate = symbol_rate;
150 sat.polarisation = polarisation;
152 sat.orbital_position = orbital_position;
153 sat.inversion = inversion;
155 // t.setSatellite(frequency, symbol_rate, polarisation, fec, sat, inversion);
156 feparm->setDVBS(sat);
157 } else if (line[1]=='t')
159 eDVBFrontendParametersTerrestrial ter;
160 int frequency, bandwidth, code_rate_HP, code_rate_LP, modulation, transmission_mode, guard_interval, hierarchy, inversion;
161 sscanf(line+2, "%d:%d:%d:%d:%d:%d:%d:%d:%d", &frequency, &bandwidth, &code_rate_HP, &code_rate_LP, &modulation, &transmission_mode, &guard_interval, &hierarchy, &inversion);
162 ter.frequency = frequency;
163 ter.bandwidth = bandwidth;
164 ter.code_rate_HP = code_rate_HP;
165 ter.code_rate_LP = code_rate_LP;
166 ter.modulation = modulation;
167 ter.transmission_mode = transmission_mode;
168 ter.guard_interval = guard_interval;
169 ter.hierarchy = hierarchy;
170 ter.inversion = inversion;
172 feparm->setDVBT(ter);
173 } else if (line[1]=='c')
175 int frequency, symbol_rate, inversion=0, modulation=3;
176 sscanf(line+2, "%d:%d:%d:%d", &frequency, &symbol_rate, &inversion, &modulation);
177 // t.setCable(frequency, symbol_rate, inversion, modulation);
180 addChannelToList(channelid, feparm);
183 if ((!fgets(line, 256, f)) || strcmp(line, "services\n"))
185 eDebug("services invalid, no services");
189 // clear all services
195 if (!fgets(line, 256, f))
197 if (!strcmp(line, "end\n"))
200 int service_id=-1, dvb_namespace, transport_stream_id=-1, original_network_id=-1, service_type=-1, service_number=-1;
201 sscanf(line, "%x:%x:%x:%x:%d:%d", &service_id, &dvb_namespace, &transport_stream_id, &original_network_id, &service_type, &service_number);
202 if (service_number == -1)
204 ePtr<eDVBService> s = new eDVBService;
205 eServiceReferenceDVB ref =
206 eServiceReferenceDVB(
207 eDVBNamespace(dvb_namespace),
208 eTransportStreamID(transport_stream_id),
209 eOriginalNetworkID(original_network_id),
210 eServiceID(service_id),
215 line[strlen(line)-1]=0;
216 s->m_service_name=line;
219 line[strlen(line)-1]=0;
221 std::string str=line;
223 if (str[1]!=':') // old ... (only service_provider)
225 s->m_provider_name=line;
227 while ((!str.empty()) && str[1]==':') // new: p:, f:, c:%02d...
229 unsigned int c=str.find(',');
232 if (c == std::string::npos)
238 v=str.substr(2, c-2);
241 // eDebug("%c ... %s", p, v.c_str());
243 s->m_provider_name=v;
246 sscanf(v.c_str(), "%x", &s->m_flags);
250 sscanf(v.c_str(), "%02d%04x", &cid, &val);
255 sscanf(v.c_str(), "%04x", &val);
262 eDebug("loaded %d services", count);
269 eDebug("---- saving lame channel db");
270 FILE *f=fopen("lamedb", "wt");
271 int channels=0, services=0;
273 eFatal("couldn't save lame channel db!");
274 fprintf(f, "eDVB services /3/\n");
275 fprintf(f, "transponders\n");
276 for (std::map<eDVBChannelID, channel>::const_iterator i(m_channels.begin());
277 i != m_channels.end(); ++i)
279 const eDVBChannelID &chid = i->first;
280 const channel &ch = i->second;
282 fprintf(f, "%08x:%04x:%04x\n", chid.dvbnamespace.get(),
283 chid.transport_stream_id.get(), chid.original_network_id.get());
284 eDVBFrontendParametersSatellite sat;
285 eDVBFrontendParametersTerrestrial ter;
286 if (!ch.m_frontendParameters->getDVBS(sat))
288 fprintf(f, "\ts %d:%d:%d:%d:%d:%d\n",
289 sat.frequency, sat.symbol_rate,
290 sat.polarisation, sat.fec, sat.inversion,
291 sat.orbital_position);
293 if (!ch.m_frontendParameters->getDVBT(ter))
295 fprintf(f, "\tt %d:%d:%d:%d:%d:%d:%d:%d:%d\n",
296 ter.frequency, ter.bandwidth, ter.code_rate_HP,
297 ter.code_rate_LP, ter.modulation, ter.transmission_mode,
298 ter.guard_interval, ter.hierarchy, ter.inversion);
303 fprintf(f, "end\nservices\n");
305 for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator i(m_services.begin());
306 i != m_services.end(); ++i)
308 const eServiceReferenceDVB &s = i->first;
309 fprintf(f, "%04x:%08x:%04x:%04x:%d:%d\n",
310 s.getServiceID().get(), s.getDVBNamespace().get(),
311 s.getTransportStreamID().get(),s.getOriginalNetworkID().get(),
315 fprintf(f, "%s\n", i->second->m_service_name.c_str());
316 fprintf(f, "p:%s", i->second->m_provider_name.c_str());
319 for (std::map<int,int>::const_iterator ca(i->second->m_cache.begin());
320 ca != i->second->m_cache.end(); ++ca)
321 fprintf(f, ",c:%02d%04x", ca->first, ca->second);
323 // write cached ca pids
324 for (std::set<int>::const_iterator ca(i->second->m_ca.begin());
325 ca != i->second->m_ca.end(); ++ca)
326 fprintf(f, ",C:%04x", *ca);
331 fprintf(f, "end\nHave a lot of bugs!\n");
332 eDebug("saved %d channels and %d services!", channels, services);
346 RESULT eDVBDB::addChannelToList(const eDVBChannelID &id, iDVBFrontendParameters *feparm)
350 ch.m_frontendParameters = feparm;
351 m_channels.insert(std::pair<eDVBChannelID, channel>(id, ch));
355 RESULT eDVBDB::removeChannel(const eDVBChannelID &id)
357 m_channels.erase(id);
361 RESULT eDVBDB::getChannelFrontendData(const eDVBChannelID &id, ePtr<iDVBFrontendParameters> &parm)
363 std::map<eDVBChannelID, channel>::iterator i = m_channels.find(id);
364 if (i == m_channels.end())
369 parm = i->second.m_frontendParameters;
373 RESULT eDVBDB::addService(const eServiceReferenceDVB &serviceref, eDVBService *service)
375 m_services.insert(std::pair<eServiceReferenceDVB, ePtr<eDVBService> >(serviceref, service));
379 RESULT eDVBDB::getService(const eServiceReferenceDVB &reference, ePtr<eDVBService> &service)
381 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator i;
382 i = m_services.find(reference);
383 if (i == m_services.end())
392 RESULT eDVBDB::startQuery(ePtr<iDVBChannelListQuery> &query, eDVBChannelQuery *q)
394 query = new eDVBDBQuery(this, eServiceReference(), q);
398 DEFINE_REF(eDVBDBQuery);
400 eDVBDBQuery::eDVBDBQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query): m_db(db), m_query(query)
402 // TODO: use SOURCE ...
403 m_cursor = m_db->m_services.begin();
406 RESULT eDVBDBQuery::getNextResult(eServiceReferenceDVB &ref)
408 while (m_cursor != m_db->m_services.end())
410 ref = m_cursor->first;
412 int res = (!m_query) || m_cursor->second->checkFilter(ref, *m_query);
422 /* (<name|provider|type|bouquet|satpos|chid> <==|...> <"string"|int>)[AND (..)] */
424 /* never, NEVER write a parser in C++! */
425 RESULT parseExpression(ePtr<eDVBChannelQuery> &res, std::list<std::string>::const_iterator begin, std::list<std::string>::const_iterator end)
427 std::list<std::string>::const_iterator end_of_exp;
431 while (end_of_exp != end)
432 if (*end_of_exp == ")")
437 if (end_of_exp == end)
439 eDebug("expression parse: end of expression while searching for closing brace");
445 int r = parseExpression(res, begin, end_of_exp);
450 /* we had only one sub expression */
451 if (end_of_exp == end)
454 /* otherwise we have an operator here.. */
456 ePtr<eDVBChannelQuery> r2 = res;
457 res = new eDVBChannelQuery();
462 if (*end_of_exp == "||")
463 res->m_type = eDVBChannelQuery::tOR;
464 else if (*end_of_exp == "&&")
465 res->m_type = eDVBChannelQuery::tAND;
468 eDebug("found operator %s, but only && and || are allowed!", end_of_exp->c_str());
475 return parseExpression(res->m_p2, end_of_exp, end);
478 // "begin" <op> "end"
479 std::string type, op, val;
481 res = new eDVBChannelQuery();
498 eDebug("malformed query: got '%s', but expected only <type> <op> <val>", begin->c_str());
507 eDebug("malformed query: missing stuff");
513 res->m_type = eDVBChannelQuery::tName;
514 else if (type == "provider")
515 res->m_type = eDVBChannelQuery::tProvider;
516 else if (type == "type")
517 res->m_type = eDVBChannelQuery::tType;
518 else if (type == "bouquet")
519 res->m_type = eDVBChannelQuery::tBouquet;
520 else if (type == "satellitePosition")
521 res->m_type = eDVBChannelQuery::tSatellitePosition;
522 else if (type == "channelID")
523 res->m_type = eDVBChannelQuery::tChannelID;
526 eDebug("malformed query: invalid type %s", type.c_str());
531 eDebug("type is %d, nice!", res->m_type);
539 eDebug("invalid operator %s", op.c_str());
545 res->m_int = atoi(val.c_str());
546 // res->m_channelid = eDVBChannelID(val);
551 RESULT eDVBChannelQuery::compile(ePtr<eDVBChannelQuery> &res, std::string query)
553 std::list<std::string> tokens;
555 std::string current_token;
557 // eDebug("splitting %s....", query.c_str());
559 const char *splitchars="()";
560 int quotemode = 0, lastsplit = 0, lastalnum = 0;
561 while (i <= query.size())
563 int c = (i < query.size()) ? query[i] : ' ';
566 int issplit = !!strchr(splitchars, c);
567 int isaln = isalnum(c);
568 int iswhite = c == ' ';
569 int isquot = c == '\"';
573 iswhite = issplit = 0;
577 if (issplit || iswhite || isquot || lastsplit || (lastalnum != isaln))
579 if (current_token.size())
580 tokens.push_back(current_token);
581 current_token.clear();
584 if (!(iswhite || isquot))
588 quotemode = !quotemode;
593 // for (std::list<std::string>::const_iterator a(tokens.begin()); a != tokens.end(); ++a)
595 // printf("%s\n", a->c_str());
598 /* now we recursivly parse that. */
599 return parseExpression(res, tokens.begin(), tokens.end());
601 res = new eDVBChannelQuery();
602 res->m_type = eDVBChannelQuery::tName;
604 res->m_string = query;
608 DEFINE_REF(eDVBChannelQuery);