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Aggregate Event Information tables [ATSC Syntax]

Aggregate Event Information table sections provide program entries for one or more source_ids listed in Satellite Virtual Channel tables.

Aggregate Event Information tables are defined in ATSC A/81 and share syntax with SCTE 54 Aggregate Event Information tables and are most often used for satellite or cable purposes.

packetization characteristics
packet id	unique pid	t_s_c	a_f_c	p_u_s_i	pointer_field	listed in MGT
per MGT	same as AETT-k	'00'	'01'	True	0-182	By k-number

maximums
instances per virtual channel	bytes per section	EIT_pid bps
256	4096	250,000

Aggregate Event Information tables are defined in ATSC A/81 and have the same syntax as SCTE 54 Aggregate Event Information tables and are most often used for satellite or cable purposes.

section syntax
syntax	bit index	# of bits	mnemonic
table_id	0	8	214 / 0xD6
section_syntax_indicator	8	1	'1'
private_indicator	9	1	'1'
reserved	10	2	'11'
section_length	12	12	uimsbf
AEIT_subtype	24	8	uimsbf
MGT_tag	32	8	uimsbf
reserved	40	2	bslbf
version_number	42	5	uimsbf
current_next_indicator	47	1	'1'
section_number	48	8	uimsbf
last_section_number	56	8	uimsbf
if AEIT_subtype = 0
num_sources_in_section	72	8	uimsbf
for i = 1 to num_sources_in_section
source_id	80	16	uimsbf
num_events	96	8	uimsbf
for i = 1 to num_events
off_air	104	1	uimsbf
reserved	105	1	'1'
event_id	106	14	bslbf
start_time	120	32	bslbf
reserved	152	4	'1111'
duration	156	20	bslbf
title_length	176	8	bslbf
title_text	184	var	bslbf
reserved		4	'1111'
descriptors_length		12	uimsbf
descriptor()		var
next
next
else
reserved	72	n*8	bslbf
end if
CRC_32		32	rpchof
Table section legend
Note: bit index is only indicated for the first time through the loop.

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