Kamaelia docs : Kamaelia.Device.DVB.Parse.PrettifyTables

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.


Kamaelia.Device.DVB.Parse.PrettifyTables.PrettifyEventInformationTable

class PrettifyEventInformationTable(Axon.Component.component)

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.

Methods defined here

Kamaelia.Device.DVB.Parse.PrettifyTables.PrettifyNetworkInformationTable

class PrettifyNetworkInformationTable(Axon.Component.component)

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.

Methods defined here

Kamaelia.Device.DVB.Parse.PrettifyTables.PrettifyProgramAssociationTable

class PrettifyProgramAssociationTable(Axon.Component.component)

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.

Methods defined here

Kamaelia.Device.DVB.Parse.PrettifyTables.PrettifyProgramMapTable

class PrettifyProgramMapTable(Axon.Component.component)

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.

Methods defined here

Kamaelia.Device.DVB.Parse.PrettifyTables.PrettifyServiceDescriptionTable

class PrettifyServiceDescriptionTable(Axon.Component.component)

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.

Methods defined here

Kamaelia.Device.DVB.Parse.PrettifyTables.PrettifyTimeAndDateTable

class PrettifyTimeAndDateTable(Axon.Component.component)

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.

Methods defined here

Kamaelia.Device.DVB.Parse.PrettifyTables.PrettifyTimeOffsetTable

class PrettifyTimeOffsetTable(Axon.Component.component)

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.

Methods defined here

Feedback

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!

Please leave you feedback here in reply to the documentation thread in the Kamaelia blog.

-- Automatic documentation generator, 19 Oct 2008 at 14:29:09 UTC/GMT

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