Class: Ariblib::EventInformationTable

Inherits:
ProgramSpecificInformation show all
Defined in:
lib/ariblib/EventInformationTable.rb

Overview

番組表テーブル

Defined Under Namespace

Classes: SelfWeeklyMultiEventSchedule, SelfWeeklyMultiSchedule

Instance Attribute Summary collapse

Attributes inherited from ProgramSpecificInformation

#contents

Instance Method Summary collapse

Methods inherited from ProgramSpecificInformation

#arib_to_utf8, #descriptor, #init_buf, #set, #set_buf

Constructor Details

#initialize ⇒ EventInformationTable

Returns a new instance of EventInformationTable.



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# File 'lib/ariblib/EventInformationTable.rb', line 107

def initialize
  super
  @schedule=SelfWeeklyMultiSchedule.new
end

Instance Attribute Details

#schedule ⇒ Object (readonly)

Returns the value of attribute schedule.



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# File 'lib/ariblib/EventInformationTable.rb', line 111

def schedule
  @schedule
end

Instance Method Details

#parse_buf ⇒ Object 



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# File 'lib/ariblib/EventInformationTable.rb', line 112

def parse_buf
  ret=[]
  bs=BitStream.new(@buf)
  #event_information_section(){

  table_id                     =bs.getc #8 uimsbf

  #staff_table if table_id == 0x72

  tmp                          =bs.gets
  section_length               =tmp & 0x0fff
  #section_syntax_indicator     =bs.read 1 #bslbf

  #reserved_future_use          =bs.read 1 #bslbf

  #reserved                     =bs.read 2 #bslbf

  #section_length               =bs.read 12 # < 4096 -3

  service_id                   =bs.gets #16 uimsbf

  tmp                          =bs.getc
  #reserved                     =bs.read 2 #bslbf

  #version_number               =bs.read 5 #uimsbf

  #current_next_indicator       =bs.read 1 #bslbf

  section_number               =bs.getc #8 uimsbf

  last_section_number          =bs.getc #8 uimsbf

  transport_stream_id          =bs.gets #16 uimsbf

  original_network_id          =bs.gets #16 uimsbf

  segment_last_section_number  =bs.getc #8 uimsbf

  last_table_id                =bs.getc #8 uimsbf


  uid=(original_network_id<<(16+16))|(transport_stream_id<<(16))|service_id
  tid     =(     table_id<<8)|     section_number
  last_tid=(last_table_id<<8)|last_section_number

  len=(section_length+3-4)*8
  while bs.pos < len
    event_id                   =bs.gets #16 #uimsbf

    start_mdj                  =bs.gets #16 #bslbf

    start_time                 =bs.get3 #24 #bslbf

    duration                   =bs.get3 #24 #uimsbf

    tmp                        =bs.gets
    #running_status             =bs.read 3 #uimsbf

    #free_CA_mode               =bs.read 1 #bslbf

    #descriptors_loop_length    =bs.read 12 #uimsbf

    desc = descriptor(bs,tmp & 0x0fff)

    start=Date.jd(start_mdj+2400001).to_datetime + time_to_datetime(start_time)
    fin  =start+time_to_datetime(duration)
    @contents << [uid,tid,event_id,start,fin,desc]
    #ret << '    %04x|%s|%s' % [event_id,start.strftime('%Y%m%d%H%M'),fin.strftime('%Y%m%d%H%M')]

  end
  cCRC_32 =bs.read 32 #rpchof


  #@schedule.check(uid,tid,last_tid,segment_last_section_number,ret)

  #tmp= [table_id,transport_stream_id,original_network_id,service_id,section_number,last_section_number,segment_last_section_number,last_table_id,ret.size]

  #ret.unshift("tid=%02x,tpid=%04x,nid=%04x,serid=%04x,secnum=%02x,lastsec=%02x,seglast=%02x,ltid=%02x,n=%d" % tmp)

  #@debug||=Hash.new(){|k,v|k[v]={}}

  #tmp=@debug[uid][tid]

  #@debug[uid][tid] = ret

  #@debug[uid]=@debug[uid].sort_by{|k,v| k}.to_h unless tmp

  nil
end

#time_to_datetime(t) ⇒ Object 



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# File 'lib/ariblib/EventInformationTable.rb', line 168

def time_to_datetime(t)
    sec =(t & 0x0000000f)
    t>>=4
    sec+=(t & 0x0000000f)*10
    t>>=4
    sec+=(t & 0x0000000f)*60
    t>>=4
    sec+=(t & 0x0000000f)*600
    t>>=4
    sec+=(t & 0x0000000f)*3600
    t>>=4
    sec+=(t & 0x0000000f)*36000
    Rational(sec,24*60*60)
end