[mythtv-commits] Ticket #11399: EIT scanner causes unnecessary reschedules and prevents idle shutdown
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Sat Feb 9 10:00:13 UTC 2013
#11399: EIT scanner causes unnecessary reschedules and prevents idle shutdown
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Reporter: Roger James <roger@…> | Owner: stuarta
Type: Patch - Bug Fix | Status: new
Priority: minor | Milestone: 0.26.1
Component: MythTV - EIT | Version: 0.26-fixes
Severity: medium | Resolution:
Keywords: eit idle | Ticket locked: 0
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Comment (by dekarl@…):
Just putting the parts of the spec in that I based my understanding on.
I was referring to EN 300 468 section 5.2.4. "Event Information Table"
where they explain the format of the "Event information section".
version_number: This 5-bit field is the version number of the sub_table.
The version_number shall
be incremented by 1 when a change in the information carried within the
sub_table occurs. When it
reaches value 31, it wraps around to 0. ... (part about
current_next_indicator omitted)
section_syntax_indicator: The section_syntax_indicator is a 1-bit field
which shall be set to "1".
from section 3.1 "Definitions" about the sub_table
sub_table: collection of sections with the same value of table_id and:
for a EIT: the same table_id_extension (service_id), the same
transport_stream_id, the same
original_network_id and version_number
NOTE: The table_id_extension field is equivalent to the fourth and fifth
byte of a section when
the section_syntax_indicator is set to a value of "1".
and from the same section about table
table: comprised of a number of sub_tables with the same value of
table_id
I did not notice the explicit mention of ONID and TSID earlier, but that
makes sense as it avoids collisions between tables for the same service_id
on different transports in a different original network. (e.g. service_id
1 in the ONID 2 scope colliding with service_id 1 but a different ONID on
the same satelite)
--
Ticket URL: <http://code.mythtv.org/trac/ticket/11399#comment:9>
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