April 2024 - This site, and Kamaelia are being updated. There is significant work needed, and PRs are welcome.
Pretty printing of parsed DVB PSI tables
A selection of components for creating human readable strings of the
output of the various components in Kamaelia.Device.DVB.Parse that parse data tables
in DVB MPEG Transport Streams.
Example Usage
Pretty printing of a Program Association Table (PAT):
FREQUENCY = 505.833330
feparams = {
"inversion" : dvb3.frontend.INVERSION_AUTO,
"constellation" : dvb3.frontend.QAM_16,
"code_rate_HP" : dvb3.frontend.FEC_3_4,
"code_rate_LP" : dvb3.frontend.FEC_3_4,
}
PAT_PID = 0x0
Pipeline( DVB_Multiplex(FREQUENCY, [PAT_PID], feparams),
DVB_Demuxer({ PAT_PID:["outbox"]}),
ReassemblePSITables(),
ParseProgramAssociationTable(),
PrettifyProgramAssociationTable(),
ConsoleEchoer(),
).run()
Example output:
PAT received:
Table ID : 0
Table is valid for : CURRENT (valid)
NIT is in PID : 16
For transport stream id : 4100
For service 4228 : PMT is in PID 4228
For service 4351 : PMT is in PID 4351
For service 4479 : PMT is in PID 4479
For service 4164 : PMT is in PID 4164
For service 4415 : PMT is in PID 4415
For service 4671 : PMT is in PID 4671
This data came from an instantaneous snapshot of the PAT for Crystal
Palace MUX 1 transmission (505.8MHz) in the UK on 20th Dec 2006.
Behaviour
The components available are:
PrettifyProgramAssociationTable
PrettifyNetworkInformationTable
PrettifyProgramMapTable
PrettifyServiceDescriptionTable
PrettifyEventInformationTable
PrettifyTimeAndDateTable
PrettifyTimeOffsetTable
Send to the "inbox" inbox of any of these components the relevant
parsed table, and a string will be sent out the "outbox" outbox
containing a 'prettified' human readable equivalent of the table
data.
If a shutdownMicroprocess or producerFinished message is received on
the "control" inbox, then it will immediately be sent on out of the
"signal" outbox and the component will then immediately terminate.
PrettifyEventInformationTable() -> new
PrettifyEventInformationTable component.
Send parsed event information tables to the "inbox" inbox and a human
readable string version will be sent out the "outbox" outbox.
Inboxes
Outboxes
Methods defined here
Warning!
You should be using the inbox/outbox interface, not these methods
(except construction). This documentation is designed as a roadmap as to
their functionalilty for maintainers and new component developers.
main(self)
shutdown(self)
PrettifyNetworkInformationTable() -> new
PrettifyNetworkInformationTable component.
Send parsed network information tables to the "inbox" inbox and a
human readable string version will be sent out the "outbox" outbox.
Inboxes
Outboxes
Methods defined here
Warning!
You should be using the inbox/outbox interface, not these methods
(except construction). This documentation is designed as a roadmap as to
their functionalilty for maintainers and new component developers.
main(self)
shutdown(self)
PrettifyProgramAssociationTable() -> new
PrettifyProgramAssociationTable component.
Send parsed program association tables to the "inbox" inbox and a
human readable string version will be sent out the "outbox" outbox.
Inboxes
Outboxes
Methods defined here
Warning!
You should be using the inbox/outbox interface, not these methods
(except construction). This documentation is designed as a roadmap as to
their functionalilty for maintainers and new component developers.
main(self)
shutdown(self)
PrettifyProgramMapTable() -> new PrettifyProgramMapTable
component.
Send parsed program map tables to the "inbox" inbox and a human
readable string version will be sent out the "outbox" outbox.
Inboxes
Outboxes
Methods defined here
Warning!
You should be using the inbox/outbox interface, not these methods
(except construction). This documentation is designed as a roadmap as to
their functionalilty for maintainers and new component developers.
main(self)
shutdown(self)
PrettifyServiceDescriptionTable() -> new
PrettifyServiceDescriptionTable component.
Send parsed service description tables to the "inbox" inbox and a
human readable string version will be sent out the "outbox" outbox.
Inboxes
Outboxes
Methods defined here
Warning!
You should be using the inbox/outbox interface, not these methods
(except construction). This documentation is designed as a roadmap as to
their functionalilty for maintainers and new component developers.
main(self)
shutdown(self)
PrettifyTimeAndDateTable() -> new PrettifyTimeAndDateTable
component.
Send parsed time and date tables to the "inbox" inbox and a human
readable string version will be sent out the "outbox" outbox.
Inboxes
Outboxes
Methods defined here
Warning!
You should be using the inbox/outbox interface, not these methods
(except construction). This documentation is designed as a roadmap as to
their functionalilty for maintainers and new component developers.
main(self)
shutdown(self)
PrettifyTimeOffsetTable() -> new PrettifyTimeOffsetTable
component.
Send parsed time offset tables to the "inbox" inbox and a human
readable string version will be sent out the "outbox" outbox.
Inboxes
Outboxes
Methods defined here
Warning!
You should be using the inbox/outbox interface, not these methods
(except construction). This documentation is designed as a roadmap as to
their functionalilty for maintainers and new component developers.
main(self)
shutdown(self)
Got a problem with the documentation? Something unclear that could be
clearer? Want to help improve it? Constructive criticism is very welcome
- especially if you can suggest a better rewording!
