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_service_name_sort = s.m_service_name_sort;
25 m_provider_name = s.m_provider_name;
32 RESULT eDVBService::getName(const eServiceReference &ref, std::string &name)
34 name = m_service_name;
38 int eDVBService::getLength(const eServiceReference &ref)
43 int eDVBService::checkFilter(const eServiceReferenceDVB &ref, const eDVBChannelQuery &query)
48 case eDVBChannelQuery::tName:
49 res = m_service_name_sort.find(query.m_string) != std::string::npos;
51 case eDVBChannelQuery::tProvider:
52 res = m_provider_name.find(query.m_string) != std::string::npos;
54 case eDVBChannelQuery::tType:
55 res = ref.getServiceType() == query.m_int;
57 case eDVBChannelQuery::tBouquet:
60 case eDVBChannelQuery::tSatellitePosition:
61 res = (ref.getDVBNamespace().get() >> 16) == query.m_int;
63 case eDVBChannelQuery::tChannelID:
66 ref.getChannelID(chid);
67 res = chid == query.m_channelid;
70 case eDVBChannelQuery::tAND:
71 res = checkFilter(ref, *query.m_p1) && checkFilter(ref, *query.m_p2);
73 case eDVBChannelQuery::tOR:
74 res = checkFilter(ref, *query.m_p1) || checkFilter(ref, *query.m_p2);
84 int eDVBService::getCachePID(cacheID id)
86 std::map<int, int>::iterator it = m_cache.find(id);
87 if ( it != m_cache.end() )
92 void eDVBService::setCachePID(cacheID id, int pid)
99 /* THIS CODE IS BAD. it should be replaced by somethine better. */
102 eDebug("---- opening lame channel db");
103 FILE *f=fopen("lamedb", "rt");
107 if ((!fgets(line, 256, f)) || strncmp(line, "eDVB services", 13))
109 eDebug("not a servicefile");
113 eDebug("reading services");
114 if ((!fgets(line, 256, f)) || strcmp(line, "transponders\n"))
116 eDebug("services invalid, no transponders");
121 // clear all transponders
125 if (!fgets(line, 256, f))
127 if (!strcmp(line, "end\n"))
129 int dvb_namespace=-1, transport_stream_id=-1, original_network_id=-1;
130 sscanf(line, "%x:%x:%x", &dvb_namespace, &transport_stream_id, &original_network_id);
131 if (original_network_id == -1)
133 eDVBChannelID channelid = eDVBChannelID(
134 eDVBNamespace(dvb_namespace),
135 eTransportStreamID(transport_stream_id),
136 eOriginalNetworkID(original_network_id));
138 ePtr<eDVBFrontendParameters> feparm = new eDVBFrontendParameters;
142 if (!strcmp(line, "/\n"))
146 eDVBFrontendParametersSatellite sat;
147 int frequency, symbol_rate, polarisation, fec, orbital_position, inversion;
148 sscanf(line+2, "%d:%d:%d:%d:%d:%d", &frequency, &symbol_rate, &polarisation, &fec, &orbital_position, &inversion);
149 sat.frequency = frequency;
150 sat.symbol_rate = symbol_rate;
151 sat.polarisation = polarisation;
153 sat.orbital_position = orbital_position;
154 sat.inversion = inversion;
156 // t.setSatellite(frequency, symbol_rate, polarisation, fec, sat, inversion);
157 feparm->setDVBS(sat);
158 } else if (line[1]=='t')
160 eDVBFrontendParametersTerrestrial ter;
161 int frequency, bandwidth, code_rate_HP, code_rate_LP, modulation, transmission_mode, guard_interval, hierarchy, inversion;
162 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);
163 ter.frequency = frequency;
164 ter.bandwidth = bandwidth;
165 ter.code_rate_HP = code_rate_HP;
166 ter.code_rate_LP = code_rate_LP;
167 ter.modulation = modulation;
168 ter.transmission_mode = transmission_mode;
169 ter.guard_interval = guard_interval;
170 ter.hierarchy = hierarchy;
171 ter.inversion = inversion;
173 feparm->setDVBT(ter);
174 } else if (line[1]=='c')
176 int frequency, symbol_rate, inversion=0, modulation=3;
177 sscanf(line+2, "%d:%d:%d:%d", &frequency, &symbol_rate, &inversion, &modulation);
178 // t.setCable(frequency, symbol_rate, inversion, modulation);
181 addChannelToList(channelid, feparm);
184 if ((!fgets(line, 256, f)) || strcmp(line, "services\n"))
186 eDebug("services invalid, no services");
190 // clear all services
196 if (!fgets(line, 256, f))
198 if (!strcmp(line, "end\n"))
201 int service_id=-1, dvb_namespace, transport_stream_id=-1, original_network_id=-1, service_type=-1, service_number=-1;
202 sscanf(line, "%x:%x:%x:%x:%d:%d", &service_id, &dvb_namespace, &transport_stream_id, &original_network_id, &service_type, &service_number);
203 if (service_number == -1)
205 ePtr<eDVBService> s = new eDVBService;
206 eServiceReferenceDVB ref =
207 eServiceReferenceDVB(
208 eDVBNamespace(dvb_namespace),
209 eTransportStreamID(transport_stream_id),
210 eOriginalNetworkID(original_network_id),
211 eServiceID(service_id),
216 line[strlen(line)-1]=0;
218 s->m_service_name = line;
219 s->m_service_name_sort = removeDVBChars(line);
220 makeUpper(s->m_service_name_sort);
224 line[strlen(line)-1]=0;
226 std::string str=line;
228 if (str[1]!=':') // old ... (only service_provider)
230 s->m_provider_name=line;
232 while ((!str.empty()) && str[1]==':') // new: p:, f:, c:%02d...
234 unsigned int c=str.find(',');
237 if (c == std::string::npos)
243 v=str.substr(2, c-2);
246 // eDebug("%c ... %s", p, v.c_str());
248 s->m_provider_name=v;
251 sscanf(v.c_str(), "%x", &s->m_flags);
255 sscanf(v.c_str(), "%02d%04x", &cid, &val);
260 sscanf(v.c_str(), "%04x", &val);
267 eDebug("loaded %d services", count);
274 eDebug("---- saving lame channel db");
275 FILE *f=fopen("lamedb", "wt");
276 int channels=0, services=0;
278 eFatal("couldn't save lame channel db!");
279 fprintf(f, "eDVB services /3/\n");
280 fprintf(f, "transponders\n");
281 for (std::map<eDVBChannelID, channel>::const_iterator i(m_channels.begin());
282 i != m_channels.end(); ++i)
284 const eDVBChannelID &chid = i->first;
285 const channel &ch = i->second;
287 fprintf(f, "%08x:%04x:%04x\n", chid.dvbnamespace.get(),
288 chid.transport_stream_id.get(), chid.original_network_id.get());
289 eDVBFrontendParametersSatellite sat;
290 eDVBFrontendParametersTerrestrial ter;
291 if (!ch.m_frontendParameters->getDVBS(sat))
293 fprintf(f, "\ts %d:%d:%d:%d:%d:%d\n",
294 sat.frequency, sat.symbol_rate,
295 sat.polarisation, sat.fec, sat.orbital_position,
298 if (!ch.m_frontendParameters->getDVBT(ter))
300 fprintf(f, "\tt %d:%d:%d:%d:%d:%d:%d:%d:%d\n",
301 ter.frequency, ter.bandwidth, ter.code_rate_HP,
302 ter.code_rate_LP, ter.modulation, ter.transmission_mode,
303 ter.guard_interval, ter.hierarchy, ter.inversion);
308 fprintf(f, "end\nservices\n");
310 for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator i(m_services.begin());
311 i != m_services.end(); ++i)
313 const eServiceReferenceDVB &s = i->first;
314 fprintf(f, "%04x:%08x:%04x:%04x:%d:%d\n",
315 s.getServiceID().get(), s.getDVBNamespace().get(),
316 s.getTransportStreamID().get(),s.getOriginalNetworkID().get(),
320 fprintf(f, "%s\n", i->second->m_service_name.c_str());
321 fprintf(f, "p:%s", i->second->m_provider_name.c_str());
324 for (std::map<int,int>::const_iterator ca(i->second->m_cache.begin());
325 ca != i->second->m_cache.end(); ++ca)
326 fprintf(f, ",c:%02d%04x", ca->first, ca->second);
328 // write cached ca pids
329 for (std::set<int>::const_iterator ca(i->second->m_ca.begin());
330 ca != i->second->m_ca.end(); ++ca)
331 fprintf(f, ",C:%04x", *ca);
336 fprintf(f, "end\nHave a lot of bugs!\n");
337 eDebug("saved %d channels and %d services!", channels, services);
351 RESULT eDVBDB::addChannelToList(const eDVBChannelID &id, iDVBFrontendParameters *feparm)
355 ch.m_frontendParameters = feparm;
356 m_channels.insert(std::pair<eDVBChannelID, channel>(id, ch));
360 RESULT eDVBDB::removeChannel(const eDVBChannelID &id)
362 m_channels.erase(id);
366 RESULT eDVBDB::getChannelFrontendData(const eDVBChannelID &id, ePtr<iDVBFrontendParameters> &parm)
368 std::map<eDVBChannelID, channel>::iterator i = m_channels.find(id);
369 if (i == m_channels.end())
374 parm = i->second.m_frontendParameters;
378 RESULT eDVBDB::addService(const eServiceReferenceDVB &serviceref, eDVBService *service)
380 m_services.insert(std::pair<eServiceReferenceDVB, ePtr<eDVBService> >(serviceref, service));
384 RESULT eDVBDB::getService(const eServiceReferenceDVB &reference, ePtr<eDVBService> &service)
386 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator i;
387 i = m_services.find(reference);
388 if (i == m_services.end())
397 RESULT eDVBDB::startQuery(ePtr<iDVBChannelListQuery> &query, eDVBChannelQuery *q)
399 query = new eDVBDBQuery(this, eServiceReference(), q);
403 DEFINE_REF(eDVBDBQuery);
405 eDVBDBQuery::eDVBDBQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query): m_db(db), m_query(query)
407 // TODO: use SOURCE ...
408 m_cursor = m_db->m_services.begin();
411 RESULT eDVBDBQuery::getNextResult(eServiceReferenceDVB &ref)
413 while (m_cursor != m_db->m_services.end())
415 ref = m_cursor->first;
417 int res = (!m_query) || m_cursor->second->checkFilter(ref, *m_query);
425 ref = eServiceReferenceDVB();
429 int eDVBDBQuery::compareLessEqual(const eServiceReferenceDVB &a, const eServiceReferenceDVB &b)
431 ePtr<eDVBService> a_service, b_service;
433 int sortmode = m_query ? m_query->m_sort : eDVBChannelQuery::tName;
435 if ((sortmode == eDVBChannelQuery::tName) || (sortmode == eDVBChannelQuery::tProvider))
437 if (m_db->getService(a, a_service))
439 if (m_db->getService(b, b_service))
445 case eDVBChannelQuery::tName:
446 return a_service->m_service_name_sort < b_service->m_service_name_sort;
447 case eDVBChannelQuery::tProvider:
448 return a_service->m_provider_name < b_service->m_provider_name;
449 case eDVBChannelQuery::tType:
450 return a.getServiceType() < b.getServiceType();
451 case eDVBChannelQuery::tBouquet:
453 case eDVBChannelQuery::tSatellitePosition:
454 return (a.getDVBNamespace().get() >> 16) < (b.getDVBNamespace().get() >> 16);
461 /* (<name|provider|type|bouquet|satpos|chid> <==|...> <"string"|int>)[||,&& (..)] */
463 static int decodeType(const std::string &type)
466 return eDVBChannelQuery::tName;
467 else if (type == "provider")
468 return eDVBChannelQuery::tProvider;
469 else if (type == "type")
470 return eDVBChannelQuery::tType;
471 else if (type == "bouquet")
472 return eDVBChannelQuery::tBouquet;
473 else if (type == "satellitePosition")
474 return eDVBChannelQuery::tSatellitePosition;
475 else if (type == "channelID")
476 return eDVBChannelQuery::tChannelID;
481 /* never, NEVER write a parser in C++! */
482 RESULT parseExpression(ePtr<eDVBChannelQuery> &res, std::list<std::string>::const_iterator begin, std::list<std::string>::const_iterator end)
484 std::list<std::string>::const_iterator end_of_exp;
488 while (end_of_exp != end)
489 if (*end_of_exp == ")")
494 if (end_of_exp == end)
496 eDebug("expression parse: end of expression while searching for closing brace");
502 int r = parseExpression(res, begin, end_of_exp);
507 /* we had only one sub expression */
508 if (end_of_exp == end)
510 eDebug("only one sub expression");
514 /* otherwise we have an operator here.. */
516 ePtr<eDVBChannelQuery> r2 = res;
517 res = new eDVBChannelQuery();
523 if (*end_of_exp == "||")
524 res->m_type = eDVBChannelQuery::tOR;
525 else if (*end_of_exp == "&&")
526 res->m_type = eDVBChannelQuery::tAND;
529 eDebug("found operator %s, but only && and || are allowed!", end_of_exp->c_str());
536 return parseExpression(res->m_p2, end_of_exp, end);
539 // "begin" <op> "end"
540 std::string type, op, val;
542 res = new eDVBChannelQuery();
560 eDebug("malformed query: got '%s', but expected only <type> <op> <val>", begin->c_str());
569 eDebug("malformed query: missing stuff");
574 res->m_type = decodeType(type);
576 if (res->m_type == -1)
578 eDebug("malformed query: invalid type %s", type.c_str());
589 eDebug("invalid operator %s", op.c_str());
595 res->m_int = atoi(val.c_str());
596 // res->m_channelid = eDVBChannelID(val);
601 RESULT eDVBChannelQuery::compile(ePtr<eDVBChannelQuery> &res, std::string query)
603 std::list<std::string> tokens;
605 std::string current_token;
607 eDebug("splitting %s....", query.c_str());
609 const char *splitchars="()";
610 int quotemode = 0, lastsplit = 0, lastalnum = 0;
611 while (i <= query.size())
613 int c = (i < query.size()) ? query[i] : ' ';
616 int issplit = !!strchr(splitchars, c);
617 int isaln = isalnum(c);
618 int iswhite = c == ' ';
619 int isquot = c == '\"';
623 iswhite = issplit = 0;
627 if (issplit || iswhite || isquot || lastsplit || (lastalnum != isaln))
629 if (current_token.size())
630 tokens.push_back(current_token);
631 current_token.clear();
634 if (!(iswhite || isquot))
638 quotemode = !quotemode;
643 // for (std::list<std::string>::const_iterator a(tokens.begin()); a != tokens.end(); ++a)
645 // printf("%s\n", a->c_str());
648 int sort = eDVBChannelQuery::tName;
649 /* check for "ORDER BY ..." */
650 if (tokens.size() > 2)
652 std::list<std::string>::iterator i = tokens.end();
660 sort = decodeType(*i);
661 tokens.pop_back(); // ...
662 tokens.pop_back(); // BY
663 tokens.pop_back(); // ORDER
671 eWarning("ORDER BY .. string invalid.");
676 eDebug("sort by %d", sort);
678 /* now we recursivly parse that. */
679 int r = parseExpression(res, tokens.begin(), tokens.end());
684 eDebug("return: %d", r);
688 DEFINE_REF(eDVBChannelQuery);