Module: M2TSParser::Application::EpgParse

Extended by:
EpgParse
Included in:
EpgParse
Defined in:
lib/m2ts_parser/application/epg_parse.rb

Instance Method Summary collapse

Instance Method Details

#eit_to_epgs(eit) ⇒ Object 



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# File 'lib/m2ts_parser/application/epg_parse.rb', line 25

def eit_to_epgs(eit)
  service_id = eit.service_id.to_i
  eit.events.map{|e| event_to_epg(service_id, e)}
end

#event_to_epg(service_id, event) ⇒ Object 



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# File 'lib/m2ts_parser/application/epg_parse.rb', line 30

def event_to_epg(service_id, event)
  {
    id:         [service_id, event.event_id.to_i],
    service_id: service_id,
    event_id:   event.event_id.to_i,
    start_time: event.start_time.to_s,
    duration:   event.duration.to_sec,
    duration_pretty:   event.duration.to_s,

    event_name: event.descriptors
      .select{|d| d.is_a? ShortEventDescriptor}
      .map{|d| d.event_name ? d.event_name.content_description : ""},

    text: event.descriptors
      .select{|d| d.is_a? ShortEventDescriptor}
      .map{|d| d.text ? d.text.content_description : ""},

    extended_text: event.descriptors
      .select{|d| d.is_a? ExtendedEventDescriptor}
      .map{|d| d.items.map{|i|
        {
          description: i.item_description_char ? i.item_description_char.content_description : "",
          text:        i.item_char ? i.item_char.content_description : ""
        }}},

    content_nibble: event.descriptors
      .select{|d| d.is_a? ContentDescriptor}
      .map{|d| d.contents.map{|c|
        {
          :level1 => {id: c.content_nibble_level_1.to_i, name: c.genre1},
          :level2 => {id: c.content_nibble_level_2.to_i, name: c.genre2},
        }}}
  }
end

#parse(path) ⇒ Object 



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# File 'lib/m2ts_parser/application/epg_parse.rb', line 8

def parse(path)
  parsed = []
  File.open(path, 'rb') do |f|
    stream = MPEGTransportStream.new(f).filter{|packet| packet.pid == 0x12}
    while stream.rest?
      packets = stream.get_sequence{|packet| packet.payload_unit_start_indicator == 1 }
      if packets.each_cons(2).all?{|a, b| (a.continuity_counter + 1) % 16 == b.continuity_counter }
        data = packets.map{|p| p.data_bytes.to_s}.inject(&:+)
        if data && data.length > 0
          parsed.concat eit_to_epgs(TableSelector.new(data).section)
        end
      end
    end
  end
  return parsed
end