Class: Ariblib::ServiceDescriptionTable

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

Overview

< 1Kbyte

Instance Attribute Summary

Attributes inherited from ProgramSpecificInformation

#contents

Instance Method Summary collapse

Methods inherited from ProgramSpecificInformation

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

Constructor Details

This class inherits a constructor from Ariblib::ProgramSpecificInformation

Instance Method Details

#parse_buf ⇒ Object 



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# File 'lib/ariblib/ProgramSpecificInformation.rb', line 78

def parse_buf
  ret=[]
  bs=BitStream.new(@buf)
  #service_description_section(){
  table_id                  =bs.read 8 #uimsbf
  #staff_table if table_id == 0x72
  section_syntax_indicator  =bs.read 1 #bslbf
  reserved_future_use       =bs.read 1 #bslbf
  reserved                  =bs.read 2 #bslbf
  section_length            =bs.read 12 #uimsbf# < 1024 -3
  transport_stream_id       =bs.read 16 #uimsbf
  reserved                  =bs.read 2 #bslbf
  version_number            =bs.read 5 #uimsbf
  current_next_indicator    =bs.read 1 #bslbf
  section_number            =bs.read 8 #uimsbf
  last_section_number       =bs.read 8 #uimsbf
  original_network_id       =bs.read 16 #uimsbf
  reserved_future_use       =bs.read 8 #bslbf
  ret << [table_id,original_network_id,transport_stream_id]
  len=(section_length+3-4)*8
  while bs.pos < len
    service_id                  =bs.read 16 #uimsbf
    reserved_future_use         =bs.read 3 #bslbf
    fEIT_user_defined_flags     =bs.read 3 #bslbf
    fEIT_schedule_flag          =bs.read 1 #bslbf
    fEIT_present_following_flag =bs.read 1 #bslbf
    running_status              =bs.read 3 #uimsbf
    free_CA_mode                =bs.read 1 #bslbf
    descriptors_loop_length     =bs.read 12 #uimsbf
    desc=descriptor(bs,descriptors_loop_length)
    ret << [service_id,desc]
  end
  cCRC_32  =bs.read 32 #rpchof
  ret
end