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.



107
108
109
110
 
# 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.



111
112
113
 
# File 'lib/ariblib/EventInformationTable.rb', line 111

def schedule
  @schedule
end

Instance Method Details

#parse_buf ⇒ Object 



112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
 
# 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 



168
169
170
171
172
173
174
175
176
177
178
179
180
181
 
# 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