cPatPmtGenerator Class Reference

#include <remux.h>

Public Member Functions
	cPatPmtGenerator (const cChannel *Channel=NULL)
void	SetVersions (int PatVersion, int PmtVersion)
void	SetChannel (const cChannel *Channel)
uchar *	GetPat (void)
uchar *	GetPmt (int &Index)

Protected Member Functions
int	MakeStream (uchar *Target, uchar Type, int Pid)
int	MakeAC3Descriptor (uchar *Target, uchar Type)
int	MakeSubtitlingDescriptor (uchar *Target, const char *Language, uchar SubtitlingType, uint16_t CompositionPageId, uint16_t AncillaryPageId)
int	MakeLanguageDescriptor (uchar *Target, const char *Language)
int	MakeCRC (uchar *Target, const uchar *Data, int Length)
void	GeneratePmtPid (const cChannel *Channel)
void	GeneratePat (void)
void	GeneratePmt (const cChannel *Channel)

Private Member Functions
void	IncCounter (int &Counter, uchar *TsPacket)
void	IncVersion (int &Version)
void	IncEsInfoLength (int Length)

Private Attributes
uchar	pat [TS_SIZE]
uchar	pmt [MAX_PMT_TS][TS_SIZE]
int	numPmtPackets
int	patCounter
int	pmtCounter
int	patVersion
int	pmtVersion
int	pmtPid
uchar *	esInfoLength

Detailed Description

Definition at line 304 of file remux.h.

Constructor & Destructor Documentation

cPatPmtGenerator()

cPatPmtGenerator::cPatPmtGenerator

(

const cChannel *

Channel = NULL

)

Definition at line 399 of file remux.c.

References esInfoLength, numPmtPackets, patCounter, patVersion, pmtCounter, pmtPid, pmtVersion, and SetChannel().

Member Function Documentation

GeneratePat()

void cPatPmtGenerator::GeneratePat ( void )

protected

Generates a PAT section for later use with GetPat().

Definition at line 519 of file remux.c.

References IncVersion(), MakeCRC(), P_TSID, pat, PATPID, patVersion, pmtPid, TS_PAYLOAD_START, and TS_SYNC_BYTE.

Referenced by SetChannel().

GeneratePmt()

void cPatPmtGenerator::GeneratePmt ( const cChannel * Channel )

protected

Generates a PMT section for the given Channel, for later use with GetPmt().

Definition at line 548 of file remux.c.

References cChannel::Alang(), cChannel::AncillaryPageId(), cChannel::Apid(), cChannel::Atype(), cChannel::CompositionPageId(), cChannel::Dlang(), cChannel::Dpid(), cChannel::Dtype(), IncVersion(), MakeAC3Descriptor(), MakeCRC(), MakeLanguageDescriptor(), MakeStream(), MakeSubtitlingDescriptor(), MAX_SECTION_SIZE, numPmtPackets, pmt, pmtPid, pmtVersion, cChannel::Ppid(), cChannel::Slang(), cChannel::Spid(), cChannel::SubtitlingType(), TS_PAYLOAD_START, TS_SIZE, TS_SYNC_BYTE, cChannel::Vpid(), and cChannel::Vtype().

Referenced by SetChannel().

GeneratePmtPid()

void cPatPmtGenerator::GeneratePmtPid ( const cChannel * Channel )

protected

Generates a PMT pid that doesn't collide with any of the actual pids of the Channel.

Definition at line 504 of file remux.c.

References cChannel::Apids(), cChannel::Dpids(), MAXPID, P_PMT_PID, pmtPid, cChannel::Ppid(), SETPID, SETPIDS, cChannel::Spids(), cChannel::Tpid(), and cChannel::Vpid().

Referenced by SetChannel().

GetPat()

uchar * cPatPmtGenerator::GetPat

(

void

)

Returns a pointer to the PAT section, which consists of exactly one TS packet.

Definition at line 632 of file remux.c.

References IncCounter(), pat, and patCounter.

GetPmt()

uchar * cPatPmtGenerator::GetPmt

(

int &

Index

)

Returns a pointer to the Index'th TS packet of the PMT section.

Index must be initialized to 0 and will be incremented by each call to GetPmt(). Returns NULL if all packets of the PMT section have been fetched.

Definition at line 638 of file remux.c.

References IncCounter(), numPmtPackets, pmt, and pmtCounter.

IncCounter()

void cPatPmtGenerator::IncCounter ( int & Counter, uchar * TsPacket )

private

Definition at line 409 of file remux.c.

Referenced by GetPat(), and GetPmt().

IncEsInfoLength()

void cPatPmtGenerator::IncEsInfoLength ( int Length )

private

Definition at line 422 of file remux.c.

References esInfoLength.

Referenced by MakeAC3Descriptor(), MakeLanguageDescriptor(), and MakeSubtitlingDescriptor().

IncVersion()

void cPatPmtGenerator::IncVersion ( int & Version )

private

Definition at line 416 of file remux.c.

Referenced by GeneratePat(), and GeneratePmt().

MakeAC3Descriptor()

int cPatPmtGenerator::MakeAC3Descriptor ( uchar * Target, uchar Type )

protected

Definition at line 443 of file remux.c.

References IncEsInfoLength().

Referenced by GeneratePmt().

MakeCRC()

int cPatPmtGenerator::MakeCRC ( uchar * Target, const uchar * Data, int Length )

protected

Definition at line 489 of file remux.c.

References SI::CRC32::crc32().

Referenced by GeneratePat(), and GeneratePmt().

MakeLanguageDescriptor()

int cPatPmtGenerator::MakeLanguageDescriptor ( uchar * Target, const char * Language )

protected

Definition at line 470 of file remux.c.

References IncEsInfoLength(), and SI::ISO639LanguageDescriptorTag.

Referenced by GeneratePmt().

MakeStream()

int cPatPmtGenerator::MakeStream ( uchar * Target, uchar Type, int Pid )

protected

Definition at line 431 of file remux.c.

References esInfoLength.

Referenced by GeneratePmt().

MakeSubtitlingDescriptor()

int cPatPmtGenerator::MakeSubtitlingDescriptor ( uchar * Target, const char * Language, uchar SubtitlingType, uint16_t CompositionPageId, uint16_t AncillaryPageId )

protected

Definition at line 453 of file remux.c.

References IncEsInfoLength(), and SI::SubtitlingDescriptorTag.

Referenced by GeneratePmt().

SetChannel()

void cPatPmtGenerator::SetChannel

(

const cChannel *

Channel

)

Sets the Channel for which the PAT/PMT shall be generated.

Definition at line 623 of file remux.c.

References GeneratePat(), GeneratePmt(), and GeneratePmtPid().

Referenced by cPatPmtGenerator().

SetVersions()

void cPatPmtGenerator::SetVersions	(	int	PatVersion,
		int	PmtVersion )

Sets the version numbers for the generated PAT and PMT, in case this generator is used to, e.g., continue a previously interrupted recording (in which case the numbers given should be derived from the PAT/PMT versions last used in the existing recording, incremented by 1.

If the given numbers exceed the allowed range of 0..31, the higher bits will automatically be cleared. SetVersions() needs to be called before SetChannel() in order to have an effect from the very start.

Definition at line 617 of file remux.c.

References patVersion, and pmtVersion.

Member Data Documentation

esInfoLength

uchar* cPatPmtGenerator::esInfoLength

private

Definition at line 314 of file remux.h.

Referenced by cPatPmtGenerator(), IncEsInfoLength(), and MakeStream().

numPmtPackets

int cPatPmtGenerator::numPmtPackets

private

Definition at line 308 of file remux.h.

Referenced by cPatPmtGenerator(), GeneratePmt(), and GetPmt().

pat

uchar cPatPmtGenerator::pat[TS_SIZE]

private

Definition at line 306 of file remux.h.

Referenced by GeneratePat(), and GetPat().

patCounter

int cPatPmtGenerator::patCounter

private

Definition at line 309 of file remux.h.

Referenced by cPatPmtGenerator(), and GetPat().

patVersion

int cPatPmtGenerator::patVersion

private

Definition at line 311 of file remux.h.

Referenced by cPatPmtGenerator(), GeneratePat(), and SetVersions().

pmt

uchar cPatPmtGenerator::pmt[MAX_PMT_TS][TS_SIZE]

private

Definition at line 307 of file remux.h.

Referenced by GeneratePmt(), and GetPmt().

pmtCounter

int cPatPmtGenerator::pmtCounter

private

Definition at line 310 of file remux.h.

Referenced by cPatPmtGenerator(), and GetPmt().

pmtPid

int cPatPmtGenerator::pmtPid

private

Definition at line 313 of file remux.h.

Referenced by cPatPmtGenerator(), GeneratePat(), GeneratePmt(), and GeneratePmtPid().

pmtVersion

int cPatPmtGenerator::pmtVersion

private

Definition at line 312 of file remux.h.

Referenced by cPatPmtGenerator(), GeneratePmt(), and SetVersions().

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

• remux.h
• remux.c