tsduck.DuckContext Class Reference

A wrapper class for C++ DuckContext. More...

Inheritance diagram for tsduck.DuckContext:

Collaboration diagram for tsduck.DuckContext:

Public Member Functions
	__init__ (self, report)
	Constructor.
	addStandards (self, mask)
	Add a list of standards which are present in the transport stream or context.
	delete (self)
	Explicitly free the underlying C++ object.
	resetStandards (self, mask=NONE)
	Reset the list of standards which are present in the transport stream or context.
	setDefaultCASId (self, cas)
	Set the default CAS id to use.
	setDefaultCharset (self, charset)
	Set the default character set for strings.
	setDefaultPDS (self, pds)
	Set the default private data specifier to use in the absence of explicit private_data_specifier_descriptor.
	setTimeReference (self, name)
	Set a non-standard time reference offset using a name.
	setTimeReferenceOffset (self, offset)
	Set a non-standard time reference offset.
	standards (self)
	Get the list of standards which are present in the transport stream or context.

Static Public Attributes
int	ABNT = 0x40;
	Defined by ABNT (Brazil, typically in addition to ISDB).
int	ATSC = 0x08;
	Defined by ATSC.
int	DVB = 0x02;
	Defined by ETSI/DVB.
int	ISDB = 0x10;
	Defined by ISDB.
int	JAPAN = 0x20;
	Defined in Japan only (typically in addition to ISDB).
int	MPEG = 0x01;
	Defined by MPEG, common to all standards.
int	NONE = 0x00;
	No known standard.
int	SCTE = 0x04;
	Defined by ANSI/SCTE.

Detailed Description

A wrapper class for C++ DuckContext.

Constructor & Destructor Documentation

__init__()

tsduck.DuckContext.__init__	(		self,
			report
	)

Constructor.

Parameters

report

The tsduck.Report object to use.

Reimplemented from tsduck.NativeObject.

Member Function Documentation

delete()

tsduck.DuckContext.delete

(

self

)

Explicitly free the underlying C++ object.

After this call, the object becomes unusable. Most usages are unpredictable but most likely will do nothing.

Returns

None.

Reimplemented from tsduck.NativeObject.

setDefaultCharset()

tsduck.DuckContext.setDefaultCharset	(		self,
			charset
	)

Set the default character set for strings.

The default should be the DVB superset of ISO/IEC 6937 as defined in ETSI EN 300 468. Use another default in the context of an operator using an incorrect signalization, assuming another default character set (usually from its own country) or in the context of mixed standards (ISBD/DVB for instance).

Parameters

charset

The new default character set name or an empty string to revert to the default.

Returns

True on success, False if charset is invalid.

setDefaultCASId()

tsduck.DuckContext.setDefaultCASId	(		self,
			cas
	)

Set the default CAS id to use.

Parameters

cas	Default CAS id to be used when the CAS is unknown.

Returns

None.

setDefaultPDS()

tsduck.DuckContext.setDefaultPDS	(		self,
			pds
	)

Set the default private data specifier to use in the absence of explicit private_data_specifier_descriptor.

Parameters

pds	Default PDS. Use zero to revert to no default.

Returns

None.

addStandards()

tsduck.DuckContext.addStandards	(		self,
			mask
	)

Add a list of standards which are present in the transport stream or context.

Parameters

mask	A bit mask of standards.

Returns

None.

standards()

tsduck.DuckContext.standards

(

self

)

Get the list of standards which are present in the transport stream or context.

Returns

A bit mask of standards.

resetStandards()

tsduck.DuckContext.resetStandards	(		self,
			mask = NONE
	)

Reset the list of standards which are present in the transport stream or context.

Parameters

mask	A bit mask of standards.

Returns

None.

setTimeReferenceOffset()

tsduck.DuckContext.setTimeReferenceOffset	(		self,
			offset
	)

Set a non-standard time reference offset.

In DVB SI, reference times are UTC. These SI can be reused in non-standard ways where the stored times use another reference. This is the case with ARIB and ABNT variants of ISDB which reuse TOT, TDT and EIT but with another local time reference.

Parameters

offset

Offset from UTC in milli-seconds. Can be positive or negative. The default offset is zero, meaning plain UTC time.

Returns

None.

setTimeReference()

tsduck.DuckContext.setTimeReference	(		self,
			name
	)

Set a non-standard time reference offset using a name.

Parameters

name	Time reference name. The non-standard time reference offset is computed from this name which can be "JST" or "UTC[[+|-]hh[:mm]]".

Returns

True on success, False if name is invalid.

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The documentation for this class was generated from the following file:

• tsduck.py