ProgramMapTable Class Reference

A PMT table maps a program described in the ProgramAssociationTable to various PID's which describe the multimedia contents of the program. More...

#include <mpegtables.h>

Inheritance diagram for ProgramMapTable:

List of all members.

Public Member Functions
	ProgramMapTable (const ProgramMapTable &table)
	ProgramMapTable (const PSIPTable &table)
uint	PCRPID (void) const
	stream that contrains program clock reference.
uint	ProgramNumber (void) const
uint	ProgramInfoLength (void) const
const unsigned char *	ProgramInfo (void) const
uint	StreamType (uint i) const
uint	StreamPID (uint i) const
uint	StreamInfoLength (uint i) const
const unsigned char *	StreamInfo (uint i) const
uint	StreamCount (void) const
void	SetPCRPID (uint pid)
void	SetProgramNumber (uint num)
void	SetStreamPID (uint i, uint pid)
void	SetStreamType (uint i, uint type)
bool	IsVideo (uint i, QString sistandard) const
	Returns true iff the stream at index i is a video stream.
bool	IsAudio (uint i, QString sistandard) const
	Returns true iff the stream at index i is an audio stream.
bool	IsEncrypted (QString sistandard) const
	Returns true iff PMT contains CA descriptor for a vid/aud stream.
bool	IsProgramEncrypted (void) const
	Returns true iff PMT's ProgramInfo contains CA descriptor.
bool	IsStreamEncrypted (uint pid) const
	Returns true iff PMT contains CA descriptor.
bool	IsStillPicture (QString sistandard) const
	Returns true iff PMT contains a still-picture video stream.
QString	StreamTypeString (uint i) const
	Returns a string representation of type at stream index i.
QString	StreamDescription (uint i, QString sistandard) const
	Returns a better (and more expensive) string representation of type at stream index i than StreamTypeString(uint)
QString	GetLanguage (uint i) const
	Returns the cannonical language if we find the iso639 descriptor.
uint	FindPIDs (uint type, vector< uint > &pids, const QString &sistandard) const
	Finds all pids matching type.
uint	FindPIDs (uint type, vector< uint > &pids, vector< uint > &types, const QString &sistandard, bool normalize) const
	Finds all pids w/types, matching type (useful for AnyVideo/AnyAudio).
int	FindPID (uint pid) const
	Locates stream index of pid.
uint	FindUnusedPID (uint desired_pid=0x20)
void	RemoveAllStreams (void)
void	AppendStream (uint pid, uint type, unsigned char *si=0, uint il=0)
void	Parse (void) const
virtual QString	toString (void) const
virtual QString	toStringXML (uint indent_level) const
Static Public Member Functions
static ProgramMapTable *	Create (uint programNumber, uint basepid, uint pcrpid, uint version, vector< uint > pids, vector< uint > types)
static ProgramMapTable *	Create (uint programNumber, uint basepid, uint pcrpid, uint version, const desc_list_t &global_desc, const vector< uint > &pids, const vector< uint > &types, const vector< desc_list_t > &prog_desc)
Private Member Functions
void	SetStreamInfoLength (uint i, uint length)
void	SetStreamProgramInfo (uint i, unsigned char *streamInfo, uint infoLength)
void	SetProgramInfoLength (uint length)
void	SetProgramInfo (unsigned char *streamInfo, uint infoLength)
Static Private Member Functions
static ProgramMapTable *	CreateBlank (bool smallPacket=true)
Private Attributes
vector< unsigned char * >	_ptrs
Static Private Attributes
static const uint	pmt_header = 4

---

Detailed Description

A PMT table maps a program described in the ProgramAssociationTable to various PID's which describe the multimedia contents of the program.

Definition at line 564 of file mpegtables.h.

---

Constructor & Destructor Documentation

ProgramMapTable::ProgramMapTable

(

const ProgramMapTable &

table

)

[inline]

Definition at line 568 of file mpegtables.h.

Referenced by CreateBlank().

ProgramMapTable::ProgramMapTable

(

const PSIPTable &

table

)

[inline]

Definition at line 574 of file mpegtables.h.

---

Member Function Documentation

ProgramMapTable * ProgramMapTable::Create	(	uint	programNumber,
		uint	basepid,
		uint	pcrpid,
		uint	version,
		vector< uint >	pids,
		vector< uint >	types
	)		[static]

Definition at line 382 of file mpegtables.cpp.

Referenced by MPEGStreamData::CreatePMTSingleProgram(), and DTVChannel::SetChannelByString().

ProgramMapTable * ProgramMapTable::Create	(	uint	programNumber,
		uint	basepid,
		uint	pcrpid,
		uint	version,
		const desc_list_t &	global_desc,
		const vector< uint > &	pids,
		const vector< uint > &	types,
		const vector< desc_list_t > &	prog_desc
	)		[static]

Definition at line 402 of file mpegtables.cpp.

uint ProgramMapTable::PCRPID

(

void

)

const [inline]

stream that contrains program clock reference.

Definition at line 592 of file mpegtables.h.

Referenced by MPEGStreamData::CreatePMTSingleProgram(), and toStringXML().

uint ProgramMapTable::ProgramNumber

(

void

)

const [inline]

Definition at line 595 of file mpegtables.h.

Referenced by MPEGStreamData::CachePMT(), CreateCAPMT(), MPEGStreamData::CreatePMTSingleProgram(), MPEGStreamData::GetCachedPMTMap(), ChannelScanSM::GetChannelList(), DVBSignalMonitor::HandlePMT(), DTVSignalMonitor::HandlePMT(), ChannelScanSM::HandlePMT(), MPEGStreamData::ProcessPMT(), DVBCam::SendPMT(), MPEGStreamData::TestDecryption(), toString(), and toStringXML().

uint ProgramMapTable::ProgramInfoLength

(

void

)

const [inline]

Definition at line 598 of file mpegtables.h.

Referenced by AppendStream(), CreateCAPMT(), MPEGStreamData::CreatePMTSingleProgram(), ChannelScanSM::GetChannelList(), ScanStreamData::GetSIStandard(), IsProgramEncrypted(), Parse(), AvFormatDecoder::ScanATSCCaptionStreams(), toString(), and toStringXML().

const unsigned char* ProgramMapTable::ProgramInfo

(

void

)

const [inline]

Definition at line 601 of file mpegtables.h.

Referenced by CreateCAPMT(), MPEGStreamData::CreatePMTSingleProgram(), ChannelScanSM::GetChannelList(), ScanStreamData::GetSIStandard(), IsProgramEncrypted(), AvFormatDecoder::ScanATSCCaptionStreams(), toString(), and toStringXML().

uint ProgramMapTable::StreamType

(

uint

i

)

const [inline]

Definition at line 604 of file mpegtables.h.

Referenced by CreateCAPMT(), MPEGStreamData::CreatePMTSingleProgram(), FindPIDs(), ChannelScanSM::GetChannelList(), ScanStreamData::GetSIStandard(), DTVRecorder::HandleSingleProgramPMT(), AvFormatDecoder::HasVideo(), IsAudio(), IsVideo(), IPTVRecorder::ProcessTSPacket(), AvFormatDecoder::ScanDSMCCStreams(), AvFormatDecoder::ScanTeletextCaptions(), StreamDescription(), toString(), and toStringXML().

uint ProgramMapTable::StreamPID

(

uint

i

)

const [inline]

Definition at line 607 of file mpegtables.h.

Referenced by CreateCAPMT(), MPEGStreamData::CreatePMTSingleProgram(), FindPIDs(), PrintMPEGStreamListener::HandlePMT(), DTVRecorder::HandleSingleProgramPMT(), MPEGStreamData::TestDecryption(), toString(), and toStringXML().

uint ProgramMapTable::StreamInfoLength

(

uint

i

)

const [inline]

Definition at line 610 of file mpegtables.h.

Referenced by AppendStream(), CreateCAPMT(), MPEGStreamData::CreatePMTSingleProgram(), FindPIDs(), GetLanguage(), IsAudio(), IsStillPicture(), IsStreamEncrypted(), IsVideo(), Parse(), AvFormatDecoder::ScanATSCCaptionStreams(), AvFormatDecoder::ScanDSMCCStreams(), AvFormatDecoder::ScanTeletextCaptions(), StreamDescription(), toString(), and toStringXML().

const unsigned char* ProgramMapTable::StreamInfo

(

uint

i

)

const [inline]

Definition at line 613 of file mpegtables.h.

Referenced by CreateCAPMT(), MPEGStreamData::CreatePMTSingleProgram(), FindPIDs(), GetLanguage(), IsAudio(), IsStillPicture(), IsStreamEncrypted(), IsVideo(), AvFormatDecoder::ScanATSCCaptionStreams(), AvFormatDecoder::ScanDSMCCStreams(), AvFormatDecoder::ScanTeletextCaptions(), StreamDescription(), toString(), and toStringXML().

uint ProgramMapTable::StreamCount

(

void

)

const [inline]

Definition at line 616 of file mpegtables.h.

Referenced by AppendStream(), CreateCAPMT(), MPEGStreamData::CreatePMTSingleProgram(), FindPIDs(), ChannelScanSM::GetChannelList(), DTVRecorder::HandlePMT(), DTVSignalMonitor::HandlePMT(), PrintMPEGStreamListener::HandlePMT(), DTVRecorder::HandleSingleProgramPMT(), AvFormatDecoder::HasVideo(), IsEncrypted(), IsStillPicture(), AvFormatDecoder::ScanATSCCaptionStreams(), AvFormatDecoder::ScanDSMCCStreams(), AvFormatDecoder::ScanTeletextCaptions(), MPEGStreamData::TestDecryption(), toString(), and toStringXML().

void ProgramMapTable::SetPCRPID

(

uint

pid

)

[inline]

Definition at line 620 of file mpegtables.h.

void ProgramMapTable::SetProgramNumber

(

uint

num

)

[inline]

Definition at line 626 of file mpegtables.h.

void ProgramMapTable::SetStreamPID	(	uint	i,
		uint	pid
	)		[inline]

Definition at line 628 of file mpegtables.h.

Referenced by AppendStream().

void ProgramMapTable::SetStreamType	(	uint	i,
		uint	type
	)		[inline]

Definition at line 634 of file mpegtables.h.

Referenced by AppendStream().

bool ProgramMapTable::IsVideo	(	uint	i,
		QString	sistandard
	)		const

Returns true iff the stream at index i is a video stream.

This of course returns true if StreamID::IsVideo() is true. And, it also returns true if IsVideo returns true after StreamID::Normalize() is used on the stream type.

Parameters:

i	index of stream

Definition at line 489 of file mpegtables.cpp.

Referenced by FindPIDs(), DTVRecorder::HandlePMT(), DTVSignalMonitor::HandlePMT(), PrintMPEGStreamListener::HandlePMT(), AvFormatDecoder::HasVideo(), IsEncrypted(), IsStillPicture(), AvFormatDecoder::ScanATSCCaptionStreams(), and MPEGStreamData::TestDecryption().

bool ProgramMapTable::IsAudio	(	uint	i,
		QString	sistandard
	)		const

Returns true iff the stream at index i is an audio stream.

This of course returns true if StreamID::IsAudio() is true. And, it also returns true if IsAudio returns true after StreamID::Normalize() is used on the stream type.

Parameters:

i	index of stream

Definition at line 510 of file mpegtables.cpp.

Referenced by FindPIDs(), DTVRecorder::HandlePMT(), DTVSignalMonitor::HandlePMT(), PrintMPEGStreamListener::HandlePMT(), IsEncrypted(), and MPEGStreamData::TestDecryption().

bool ProgramMapTable::IsEncrypted

(

QString

sistandard

)

const

Returns true iff PMT contains CA descriptor for a vid/aud stream.

Definition at line 525 of file mpegtables.cpp.

Referenced by ChannelScanSM::GetChannelList(), DTVSignalMonitor::HandlePMT(), and ChannelScanSM::HandlePMT().

bool ProgramMapTable::IsProgramEncrypted

(

void

)

const

Returns true iff PMT's ProgramInfo contains CA descriptor.

Definition at line 541 of file mpegtables.cpp.

Referenced by IsEncrypted(), and MPEGStreamData::TestDecryption().

bool ProgramMapTable::IsStreamEncrypted

(

uint

i

)

const

Returns true iff PMT contains CA descriptor.

Parameters:

i	index of stream

Definition at line 567 of file mpegtables.cpp.

Referenced by IsEncrypted(), and MPEGStreamData::TestDecryption().

bool ProgramMapTable::IsStillPicture

(

QString

sistandard

)

const

Returns true iff PMT contains a still-picture video stream.

Definition at line 588 of file mpegtables.cpp.

QString ProgramMapTable::StreamTypeString

(

uint

i

)

const [inline]

Returns a string representation of type at stream index i.

Definition at line 646 of file mpegtables.h.

Referenced by toString(), and toStringXML().

QString ProgramMapTable::StreamDescription	(	uint	i,
		QString	sistandard
	)		const

Returns a better (and more expensive) string representation of type at stream index i than StreamTypeString(uint)

Definition at line 1087 of file mpegtables.cpp.

Referenced by CreateCAPMT().

QString ProgramMapTable::GetLanguage

(

uint

i

)

const

Returns the cannonical language if we find the iso639 descriptor.

Definition at line 1073 of file mpegtables.cpp.

Referenced by StreamDescription().

uint ProgramMapTable::FindPIDs	(	uint	type,
		vector< uint > &	pids,
		const QString &	sistandard
	)		const

Finds all pids matching type.

Parameters:

type	StreamType to match
pids	vector pids will be added to
sistandard	standard to use in determining if this is a A/V stream

Returns:

number of pids in list

Definition at line 612 of file mpegtables.cpp.

uint ProgramMapTable::FindPIDs	(	uint	type,
		vector< uint > &	pids,
		vector< uint > &	types,
		const QString &	sistandard,
		bool	normalize
	)		const

Finds all pids w/types, matching type (useful for AnyVideo/AnyAudio).

Parameters:

type	StreamType to match
pids	vector pids will be added to
types	vector types will be added to
sistandard	standard to use in determining if this is a A/V stream
normalize	if set types will be normalized

Returns:

number of items in pids and types lists.

Definition at line 648 of file mpegtables.cpp.

int ProgramMapTable::FindPID

(

uint

pid

)

const [inline]

Locates stream index of pid.

Returns:

stream index if successful, -1 otherwise

Definition at line 661 of file mpegtables.h.

Referenced by MPEGStreamData::CreatePMTSingleProgram(), FindPIDs(), FindUnusedPID(), and IPTVRecorder::ProcessTSPacket().

uint ProgramMapTable::FindUnusedPID

(

uint

desired_pid = 0x20

)

Definition at line 701 of file mpegtables.cpp.

void ProgramMapTable::RemoveAllStreams

(

void

)

[inline]

Definition at line 670 of file mpegtables.h.

void ProgramMapTable::AppendStream	(	uint	pid,
		uint	type,
		unsigned char *	si = 0,
		uint	il = 0
	)

Definition at line 466 of file mpegtables.cpp.

void ProgramMapTable::Parse

(

void

)

const

Definition at line 445 of file mpegtables.cpp.

Referenced by MPEGStreamData::CreatePMTSingleProgram(), FindPIDs(), GetLanguage(), IsAudio(), IsVideo(), StreamDescription(), toString(), and toStringXML().

QString ProgramMapTable::toString

(

void

)

const [virtual]

Reimplemented from PSIPTable.

Definition at line 840 of file mpegtables.cpp.

Referenced by MPEGStreamData::CreatePMTSingleProgram(), ChannelScanSM::HandlePMT(), Parse(), and StreamDescription().

QString ProgramMapTable::toStringXML

(

uint

indent_level

)

const [virtual]

Reimplemented from PSIPTable.

Definition at line 875 of file mpegtables.cpp.

void ProgramMapTable::SetStreamInfoLength	(	uint	i,
		uint	length
	)		[inline, private]

Definition at line 683 of file mpegtables.h.

void ProgramMapTable::SetStreamProgramInfo	(	uint	i,
		unsigned char *	streamInfo,
		uint	infoLength
	)		[inline, private]

Definition at line 689 of file mpegtables.h.

Referenced by AppendStream().

void ProgramMapTable::SetProgramInfoLength

(

uint

length

)

[inline, private]

Definition at line 696 of file mpegtables.h.

void ProgramMapTable::SetProgramInfo	(	unsigned char *	streamInfo,
		uint	infoLength
	)		[inline, private]

Definition at line 702 of file mpegtables.h.

ProgramMapTable * ProgramMapTable::CreateBlank

(

bool

smallPacket = true

)

[static, private]

Definition at line 357 of file mpegtables.cpp.

Referenced by Create().

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Member Data Documentation

const uint ProgramMapTable::pmt_header = 4 [static, private]

Definition at line 710 of file mpegtables.h.

Referenced by AppendStream(), and Parse().

vector<unsigned char*> ProgramMapTable::_ptrs [mutable, private]

Definition at line 711 of file mpegtables.h.

Referenced by AppendStream(), and Parse().

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

• mpegtables.h
• mpegtables.cpp