From 81366ee3db67e313faeac5073dc8b1f0e7e71921 Mon Sep 17 00:00:00 2001 From: Andreas Monzner Date: Wed, 26 Jul 2006 13:03:13 +0000 Subject: [PATCH] add MHW EPG (disabled for default) --- lib/dvb/epgcache.cpp | 438 ++++++++++++++++++++++++++++++++++++++++++- lib/dvb/epgcache.h | 32 +++- 2 files changed, 468 insertions(+), 2 deletions(-) diff --git a/lib/dvb/epgcache.cpp b/lib/dvb/epgcache.cpp index 1867eb97..4afe813b 100644 --- a/lib/dvb/epgcache.cpp +++ b/lib/dvb/epgcache.cpp @@ -256,6 +256,14 @@ void eEPGCache::DVBChannelRunning(iDVBChannel *chan) eDebug("[eEPGCache] couldnt initialize private reader!!"); return; } +#endif +#ifdef ENABLE_MHW_EPG + res = demux->createSectionReader( this, data.m_MHWReader ); + if ( res ) + { + eDebug("[eEPGCache] couldnt initialize mhw reader!!"); + return; + } #endif messages.send(Message(Message::startChannel, chan)); // -> gotMessage -> changedService @@ -982,13 +990,23 @@ void eEPGCache::save() eEPGCache::channel_data::channel_data(eEPGCache *ml) :cache(ml) - ,abortTimer(ml), zapTimer(ml),state(0) + ,abortTimer(ml), zapTimer(ml), state(0) ,isRunning(0), haveData(0) +#ifdef ENABLE_PRIVATE_EPG ,startPrivateTimer(ml) +#endif +#ifdef ENABLE_MHW_EPG + ,m_MHWTimeoutTimer(ml) +#endif { +#ifdef ENABLE_MHW_EPG + CONNECT(m_MHWTimeoutTimer.timeout, eEPGCache::channel_data::MHWTimeout); +#endif CONNECT(zapTimer.timeout, eEPGCache::channel_data::startEPG); CONNECT(abortTimer.timeout, eEPGCache::channel_data::abortNonAvail); +#ifdef ENABLE_PRIVATE_EPG CONNECT(startPrivateTimer.timeout, eEPGCache::channel_data::startPrivateReader); +#endif } bool eEPGCache::channel_data::finishEPG() @@ -1005,6 +1023,9 @@ bool eEPGCache::channel_data::finishEPG() } singleLock l(cache->cache_lock); cache->channelLastUpdated[channel->getChannelID()] = eDVBLocalTimeHandler::getInstance()->nowTime(); +#ifdef ENABLE_MHW_EPG + cleanup(); +#endif return true; } return false; @@ -1023,6 +1044,17 @@ void eEPGCache::channel_data::startEPG() eDVBSectionFilterMask mask; memset(&mask, 0, sizeof(mask)); + +#ifdef ENABLE_MHW_EPG + mask.pid = 0xD3; + mask.data[0] = 0x91; + mask.mask[0] = 0xFF; + m_MHWReader->connectRead(slot(*this, &eEPGCache::channel_data::readMHWData), m_MHWConn); + m_MHWReader->start(mask); + isRunning |= MHW; + memcpy(&m_MHWFilterMask, &mask, sizeof(eDVBSectionFilterMask)); +#endif + mask.pid = 0x12; mask.flags = eDVBSectionFilterMask::rfCRC; @@ -1072,6 +1104,15 @@ void eEPGCache::channel_data::abortNonAvail() m_ScheduleOtherReader->stop(); m_ScheduleOtherConn=0; } +#ifdef ENABLE_MHW_EPG + if ( !(haveData&MHW) && (isRunning&MHW) ) + { + eDebug("[EPGC] abort non avail mhw reading"); + isRunning &= ~MHW; + m_MHWReader->stop(); + m_MHWConn=0; + } +#endif if ( isRunning ) abortTimer.start(90000, true); else @@ -1133,6 +1174,14 @@ void eEPGCache::channel_data::abortEPG() m_ScheduleOtherReader->stop(); m_ScheduleOtherConn=0; } +#ifdef ENABLE_MHW_EPG + if (isRunning & MHW) + { + isRunning &= ~MHW; + m_MHWReader->stop(); + m_MHWConn=0; + } +#endif } #ifdef ENABLE_PRIVATE_EPG if (m_PrivateReader) @@ -2422,3 +2471,390 @@ void eEPGCache::channel_data::readPrivateData( const __u8 *data) } #endif // ENABLE_PRIVATE_EPG + +#ifdef ENABLE_MHW_EPG +void eEPGCache::channel_data::cleanup() +{ + m_channels.clear(); + m_themes.clear(); + m_titles.clear(); + m_program_ids.clear(); +} + +__u8 *eEPGCache::channel_data::delimitName( __u8 *in, __u8 *out, int len_in ) +{ + // Names in mhw structs are not strings as they are not '\0' terminated. + // This function converts the mhw name into a string. + // Constraint: "length of out" = "length of in" + 1. + int i; + for ( i=0; i < len_in; i++ ) + out[i] = in[i]; + + i = len_in - 1; + while ( ( i >=0 ) && ( out[i] == 0x20 ) ) + i--; + + out[i+1] = 0; + return out; +} + +void eEPGCache::channel_data::timeMHW2DVB( u_char hours, u_char minutes, u_char *return_time) +// For time of day +{ + return_time[0] = toBCD( hours ); + return_time[1] = toBCD( minutes ); + return_time[2] = 0; +} + +void eEPGCache::channel_data::timeMHW2DVB( int minutes, u_char *return_time) +{ + timeMHW2DVB( int(minutes/60), minutes%60, return_time ); +} + +void eEPGCache::channel_data::timeMHW2DVB( u_char day, u_char hours, u_char minutes, u_char *return_time) +// For date plus time of day +{ + // Remove offset in mhw time. + __u8 local_hours = hours; + if ( hours >= 16 ) + local_hours -= 4; + else if ( hours >= 8 ) + local_hours -= 2; + + // As far as we know all mhw time data is sent in central Europe time zone. + // So, temporarily set timezone to western europe + time_t dt = eDVBLocalTimeHandler::getInstance()->nowTime(); + + char *old_tz = getenv( "TZ" ); + putenv("TZ=CET-1CEST,M3.5.0/2,M10.5.0/3"); + tzset(); + + tm *localnow = localtime( &dt ); + + if (day == 7) + day = 0; + if ( day + 1 < localnow->tm_wday ) // day + 1 to prevent old events to show for next week. + day += 7; + if (local_hours <= 5) + day++; + + dt += 3600*24*(day - localnow->tm_wday); // Shift dt to the recording date (local time zone). + dt += 3600*(local_hours - localnow->tm_hour); // Shift dt to the recording hour. + + tm *recdate = gmtime( &dt ); // This will also take care of DST. + + if ( old_tz == NULL ) + unsetenv( "TZ" ); + else + putenv( old_tz ); + tzset(); + + // Calculate MJD according to annex in ETSI EN 300 468 + int l=0; + if ( recdate->tm_mon <= 1 ) // Jan or Feb + l=1; + int mjd = 14956 + recdate->tm_mday + int( (recdate->tm_year - l) * 365.25) + + int( (recdate->tm_mon + 2 + l * 12) * 30.6001); + + return_time[0] = (mjd & 0xFF00)>>8; + return_time[1] = mjd & 0xFF; + + timeMHW2DVB( recdate->tm_hour, minutes, return_time+2 ); +} + +void eEPGCache::channel_data::storeTitle(std::map<__u32, mhw_title_t>::iterator itTitle, std::string sumText, const __u8 *data) +// data is borrowed from calling proc to save memory space. +{ + // For each title a separate EIT packet will be sent to eEPGCache::sectionRead() + __u8 name[24]; + + eit_t *packet = (eit_t *) data; + packet->table_id = 0x50; + packet->section_syntax_indicator = 1; + packet->service_id_hi = m_channels[ itTitle->second.channel_id - 1 ].channel_id_hi; + packet->service_id_lo = m_channels[ itTitle->second.channel_id - 1 ].channel_id_lo; + packet->version_number = 0; // eEPGCache::sectionRead() will dig this for the moment + packet->current_next_indicator = 0; + packet->section_number = 0; // eEPGCache::sectionRead() will dig this for the moment + packet->last_section_number = 0; // eEPGCache::sectionRead() will dig this for the moment + packet->transport_stream_id_hi = m_channels[ itTitle->second.channel_id - 1 ].transport_stream_id_hi; + packet->transport_stream_id_lo = m_channels[ itTitle->second.channel_id - 1 ].transport_stream_id_lo; + packet->original_network_id_hi = m_channels[ itTitle->second.channel_id - 1 ].network_id_hi; + packet->original_network_id_lo = m_channels[ itTitle->second.channel_id - 1 ].network_id_lo; + packet->segment_last_section_number = 0; // eEPGCache::sectionRead() will dig this for the moment + packet->segment_last_table_id = 0x50; + + std::string prog_title = (char *) delimitName( itTitle->second.title, name, 23 ); + int prog_title_length = prog_title.length(); + + int packet_length = EIT_SIZE + EIT_LOOP_SIZE + EIT_SHORT_EVENT_DESCRIPTOR_SIZE + + prog_title_length + 1; + + eit_event_t *event_data = (eit_event_t *) (data + EIT_SIZE); + event_data->event_id_hi = (( itTitle->first ) >> 8 ) & 0xFF; + event_data->event_id_lo = ( itTitle->first ) & 0xFF; + + timeMHW2DVB( itTitle->second.day, itTitle->second.hours, itTitle->second.minutes, + (u_char *) event_data + 2 ); + timeMHW2DVB( HILO(itTitle->second.duration), (u_char *) event_data+7 ); + + event_data->running_status = 0; + event_data->free_CA_mode = 0; + int descr_ll = EIT_SHORT_EVENT_DESCRIPTOR_SIZE + 1 + prog_title_length; + + eit_short_event_descriptor_struct *short_event_descriptor = + (eit_short_event_descriptor_struct *) ( (u_char *) event_data + EIT_LOOP_SIZE); + short_event_descriptor->descriptor_tag = EIT_SHORT_EVENT_DESCRIPTOR; + short_event_descriptor->descriptor_length = EIT_SHORT_EVENT_DESCRIPTOR_SIZE + + prog_title_length - 1; + short_event_descriptor->language_code_1 = 'e'; + short_event_descriptor->language_code_2 = 'n'; + short_event_descriptor->language_code_3 = 'g'; + short_event_descriptor->event_name_length = prog_title_length; + delimitName( itTitle->second.title, name, 23 ); + u_char *event_name = (u_char *) short_event_descriptor + EIT_SHORT_EVENT_DESCRIPTOR_SIZE; + memcpy(event_name, name, prog_title_length); + + // Set text length + event_name[prog_title_length] = 0; + + if ( sumText.length() > 0 ) + // There is summary info + { + unsigned int sum_length = sumText.length(); + if ( sum_length + short_event_descriptor->descriptor_length <= 0xff ) + // Store summary in short event descriptor + { + // Increase all relevant lengths + event_name[prog_title_length] = sum_length; + short_event_descriptor->descriptor_length += sum_length; + packet_length += sum_length; + descr_ll += sum_length; + sumText.copy( (char *) event_name+prog_title_length+1, sum_length ); + } + else + // Store summary in extended event descriptors + { + int remaining_sum_length = sumText.length(); + int nbr_descr = int(remaining_sum_length/247) + 1; + for ( int i=0; i < nbr_descr; i++) + // Loop once per extended event descriptor + { + eit_extended_descriptor_struct *ext_event_descriptor = (eit_extended_descriptor_struct *) (data + packet_length); + sum_length = remaining_sum_length > 247 ? 247 : remaining_sum_length; + remaining_sum_length -= sum_length; + packet_length += 8 + sum_length; + descr_ll += 8 + sum_length; + + ext_event_descriptor->descriptor_tag = EIT_EXTENDED_EVENT_DESCRIPOR; + ext_event_descriptor->descriptor_length = sum_length + 6; + ext_event_descriptor->descriptor_number = i; + ext_event_descriptor->last_descriptor_number = nbr_descr - 1; + ext_event_descriptor->iso_639_2_language_code_1 = 'e'; + ext_event_descriptor->iso_639_2_language_code_2 = 'n'; + ext_event_descriptor->iso_639_2_language_code_3 = 'g'; + u_char *the_text = (u_char *) ext_event_descriptor + 8; + the_text[-2] = 0; + the_text[-1] = sum_length; + sumText.copy( (char *) the_text, sum_length, sumText.length() - sum_length - remaining_sum_length ); + } + } + } + // Add content descriptor + u_char *descriptor = (u_char *) data + packet_length; + packet_length += 4; + descr_ll += 4; + + int content_id = 0; + std::string content_descr = (char *) delimitName( m_themes[itTitle->second.theme_id].name, name, 15 ); + if ( content_descr.find( "FILM" ) != std::string::npos ) + content_id = 0x10; + else if ( content_descr.find( "SPORT" ) != std::string::npos ) + content_id = 0x40; + + descriptor[0] = 0x54; + descriptor[1] = 2; + descriptor[2] = content_id; + descriptor[3] = 0; + + event_data->descriptors_loop_length_hi = (descr_ll & 0xf00)>>8; + event_data->descriptors_loop_length_lo = (descr_ll & 0xff); + + packet->section_length_hi = ((packet_length - 3)&0xf00)>>8; + packet->section_length_lo = (packet_length - 3)&0xff; + + // Feed the data to eEPGCache::sectionRead() + cache->sectionRead( data, MHW, this ); +} + +void eEPGCache::channel_data::startTimeout(int msec) +{ + m_MHWTimeoutTimer.start(msec,true); + m_MHWTimeoutet=false; +} + +void eEPGCache::channel_data::startMHWReader(__u16 pid, __u8 tid) +{ + m_MHWFilterMask.pid = pid; + m_MHWFilterMask.data[0] = tid; + m_MHWReader->start(m_MHWFilterMask); +// eDebug("start 0x%02x 0x%02x", pid, tid); +} + +void eEPGCache::channel_data::readMHWData(const __u8 *data) +{ + if ( state > 1 || // aborted + // have si data.. so we dont read mhw data + (haveData & (SCHEDULE|SCHEDULE_OTHER)) ) + { + eDebug("[EPGC] mhw aborted %d", state); + } + else if (m_MHWFilterMask.pid == 0xD3 && m_MHWFilterMask.data[0] == 0x91) + // Channels table + { + int len = ((data[1]&0xf)<<8) + data[2] - 1; + int record_size = sizeof( mhw_channel_name_t ); + int nbr_records = int (len/record_size); + + for ( int i = 0; i < nbr_records; i++ ) + { + mhw_channel_name_t *channel = (mhw_channel_name_t*) &data[4 + i*record_size]; + m_channels.push_back( *channel ); + } + haveData |= MHW; + + eDebug("channels finished %d found", m_channels.size()); + + // Channels table has been read, start reading the themes table. + startMHWReader(0xD3, 0x92); + return; + } + else if (m_MHWFilterMask.pid == 0xD3 && m_MHWFilterMask.data[0] == 0x92) + // Themes table + { + int len = ((data[1]&0xf)<<8) + data[2] - 16; + int record_size = sizeof( mhw_theme_name_t ); + int nbr_records = int (len/record_size); + int idx_ptr = 0; + __u8 next_idx = (__u8) *(data + 3 + idx_ptr); + __u8 idx = 0; + __u8 sub_idx = 0; + for ( int i = 0; i < nbr_records; i++ ) + { + mhw_theme_name_t *theme = (mhw_theme_name_t*) &data[19 + i*record_size]; + if ( i >= next_idx ) + { + idx = (idx_ptr<<4); + idx_ptr++; + next_idx = (__u8) *(data + 3 + idx_ptr); + sub_idx = 0; + } + else + sub_idx++; + + m_themes[idx+sub_idx] = *theme; + } + eDebug("themes finished %d found", m_themes.size()); + // Themes table has been read, start reading the titles table. + startMHWReader(0xD2, 0x90); + startTimeout(4000); + return; + } + else if (m_MHWFilterMask.pid == 0xD2 && m_MHWFilterMask.data[0] == 0x90) + // Titles table + { + mhw_title_t *title = (mhw_title_t*) data; + + if ( title->channel_id == 0xFF ) // Separator + return; // Continue reading of the current table. + else + { + // Create unique key per title + __u32 title_id = ((title->channel_id)<<16)|((title->day)<<13)|((title->hours)<<8)| + (title->minutes); + __u32 program_id = ((title->program_id_hi)<<24)|((title->program_id_mh)<<16)| + ((title->program_id_ml)<<8)|(title->program_id_lo); + + if ( m_titles.find( title_id ) == m_titles.end() ) + { + startTimeout(4000); + m_titles[ title_id ] = *title; + if ( (title->summary_available) && (m_program_ids.find(program_id) == m_program_ids.end()) ) + // program_ids will be used to gather summaries. + m_program_ids[ program_id ] = title_id; + return; // Continue reading of the current table. + } + else if (!checkTimeout()) + return; + } + if ( !m_program_ids.empty()) + { + // Titles table has been read, there are summaries to read. + // Start reading summaries, store corresponding titles on the fly. + startMHWReader(0xD3, 0x90); + eDebug("titles finished %d titles, %d with summary", + m_titles.size(), + m_program_ids.size()); + startTimeout(4000); + return; + } + } + else if (m_MHWFilterMask.pid == 0xD3 && m_MHWFilterMask.data[0] == 0x90) + // Summaries table + { + mhw_summary_t *summary = (mhw_summary_t*) data; + + // Create unique key per record + __u32 program_id = ((summary->program_id_hi)<<24)|((summary->program_id_mh)<<16)| + ((summary->program_id_ml)<<8)|(summary->program_id_lo); + int len = ((data[1]&0xf)<<8) + data[2]; + + // ugly workaround to convert const __u8* to char* + char *tmp=0; + memcpy(&tmp, &data, sizeof(void*)); + tmp[len+3] = 0; // Terminate as a string. + + std::map<__u32, __u32>::iterator itProgid( m_program_ids.find( program_id ) ); + if ( itProgid == m_program_ids.end() ) + { /* This part is to prevent to looping forever if some summaries are not received yet. + There is a timeout of 4 sec. after the last successfully read summary. */ + if (!m_program_ids.empty() && !checkTimeout()) + return; // Continue reading of the current table. + } + else + { + std::string the_text = (char *) (data + 11 + summary->nb_replays * 7); + + unsigned int pos=0; + while((pos = the_text.find("\r\n")) != std::string::npos) + the_text.replace(pos, 2, " "); + + // Find corresponding title, store title and summary in epgcache. + std::map<__u32, mhw_title_t>::iterator itTitle( m_titles.find( itProgid->second ) ); + if ( itTitle != m_titles.end() ) + { + startTimeout(4000); + storeTitle( itTitle, the_text, data ); + m_titles.erase( itTitle ); + } + m_program_ids.erase( itProgid ); + if ( !m_program_ids.empty() ) + return; // Continue reading of the current table. + } + } + // Summaries have been read, titles that have summaries have been stored. + // Now store titles that do not have summaries. + for (std::map<__u32, mhw_title_t>::iterator itTitle(m_titles.begin()); itTitle != m_titles.end(); itTitle++) + storeTitle( itTitle, "", data ); + eDebug("[EPGC] mhw finished(%ld) %d summaries left", + eDVBLocalTimeHandler::getInstance()->nowTime(), + m_program_ids.size()); + isRunning &= ~MHW; + m_MHWConn=0; + if ( m_MHWReader ) + m_MHWReader->stop(); + if (haveData) + finishEPG(); +} + +#endif diff --git a/lib/dvb/epgcache.h b/lib/dvb/epgcache.h index fb37b20d..af02ead6 100644 --- a/lib/dvb/epgcache.h +++ b/lib/dvb/epgcache.h @@ -2,6 +2,7 @@ #define __epgcache_h_ #define ENABLE_PRIVATE_EPG 1 +//#define ENABLE_MHW_EPG 1 #ifndef SWIG @@ -14,6 +15,9 @@ #include #include +#ifdef ENABLE_MHW_EPG +#include +#endif #include #include #include @@ -170,6 +174,28 @@ class eEPGCache: public eMainloop, private eThread, public Object bool canDelete() { return !isRunning && !m_PrivateConn; } #else bool canDelete() { return !isRunning; } +#endif +#ifdef ENABLE_MHW_EPG + std::vector m_channels; + std::map<__u8, mhw_theme_name_t> m_themes; + std::map<__u32, mhw_title_t> m_titles; + std::map<__u32, __u32> m_program_ids; + ePtr m_MHWConn; + ePtr m_MHWReader; + eDVBSectionFilterMask m_MHWFilterMask; + eTimer m_MHWTimeoutTimer; + bool m_MHWTimeoutet; + void MHWTimeout() { m_MHWTimeoutet=true; } + void readMHWData(const __u8 *data); + void startMHWReader(__u16 pid, __u8 tid); + void startTimeout(int msek); + bool checkTimeout() { return m_MHWTimeoutet; } + void cleanup(); + __u8 *delimitName( __u8 *in, __u8 *out, int len_in ); + void timeMHW2DVB( u_char hours, u_char minutes, u_char *return_time); + void timeMHW2DVB( int minutes, u_char *return_time); + void timeMHW2DVB( u_char day, u_char hours, u_char minutes, u_char *return_time); + void storeTitle(std::map<__u32, mhw_title_t>::iterator itTitle, std::string sumText, const __u8 *data); #endif void readData(const __u8 *data); void startChannel(); @@ -180,7 +206,11 @@ class eEPGCache: public eMainloop, private eThread, public Object }; void FixOverlapping(std::pair &servicemap, time_t TM, int duration, const timeMap::iterator &tm_it, const uniqueEPGKey &service); public: - enum {PRIVATE=0, NOWNEXT=1, SCHEDULE=2, SCHEDULE_OTHER=4}; + enum {PRIVATE=0, NOWNEXT=1, SCHEDULE=2, SCHEDULE_OTHER=4 +#ifdef ENABLE_MHW_EPG + ,MHW=8 +#endif + }; struct Message { enum -- 2.30.2