Class: TSparser::PSISectionReader

Inherits:
Object
  • Object
show all
Defined in:
lib/psi_section_reader.rb

Instance Method Summary collapse

Constructor Details

#initialize(pid, ts) ⇒ PSISectionReader

Returns a new instance of PSISectionReader.



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# File 'lib/psi_section_reader.rb', line 5

def initialize(pid, ts)
  @ts = ts.filter(pid)
end

Instance Method Details

#read ⇒ Object 



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# File 'lib/psi_section_reader.rb', line 9

def read
  cont_packets = []
  while packet = @ts.read
    if packet.payload_unit_start_indicator == 1
      if @start_packet && continuity_check(@start_packet, *cont_packets, packet)
        binary = @start_packet.payload.from(@start_packet.payload.b(0) + 1)
        binary = binary.join(*cont_packets.map{|packet| packet.payload})
        @start_packet = packet
        return binary
      else
        @start_packet = packet
        cont_packets = []
        next
      end
    end
    cont_packets << packet
  end
  return nil
end