vdr  2.0.4
Public Member Functions | Protected Member Functions | Private Member Functions | Private Attributes | List of all members
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)
 
ucharGetPat (void)
 
ucharGetPmt (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 MakeTeletextDescriptor (uchar *Target, const tTeletextSubtitlePage *pages, int pageCount)
 
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
 
ucharesInfoLength
 

Detailed Description

Definition at line 285 of file remux.h.

Constructor & Destructor Documentation

cPatPmtGenerator::cPatPmtGenerator ( const cChannel Channel = NULL)

Definition at line 353 of file remux.c.

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

Member Function Documentation

void cPatPmtGenerator::GeneratePat ( void  )
protected

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

Definition at line 496 of file remux.c.

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

Referenced by SetChannel().

void cPatPmtGenerator::GeneratePmt ( const cChannel Channel)
protected
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 481 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().

uchar * cPatPmtGenerator::GetPat ( void  )

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

Definition at line 614 of file remux.c.

References IncCounter(), pat, and patCounter.

Referenced by cRecorder::Action(), and cTransfer::Activate().

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 is all packets of the PMT section have been fetched..

Definition at line 620 of file remux.c.

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

Referenced by cRecorder::Action(), and cTransfer::Activate().

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

Definition at line 363 of file remux.c.

Referenced by GetPat(), and GetPmt().

void cPatPmtGenerator::IncEsInfoLength ( int  Length)
private
void cPatPmtGenerator::IncVersion ( int &  Version)
private

Definition at line 370 of file remux.c.

Referenced by GeneratePat(), and GeneratePmt().

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

Definition at line 397 of file remux.c.

References IncEsInfoLength().

Referenced by GeneratePmt().

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

Definition at line 466 of file remux.c.

References SI::CRC32::crc32().

Referenced by GeneratePat(), and GeneratePmt().

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

Definition at line 447 of file remux.c.

References IncEsInfoLength(), and SI::ISO639LanguageDescriptorTag.

Referenced by GeneratePmt().

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

Definition at line 385 of file remux.c.

References esInfoLength.

Referenced by GeneratePmt().

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

Definition at line 407 of file remux.c.

References IncEsInfoLength(), and SI::SubtitlingDescriptorTag.

Referenced by GeneratePmt().

int cPatPmtGenerator::MakeTeletextDescriptor ( uchar Target,
const tTeletextSubtitlePage pages,
int  pageCount 
)
protected
void cPatPmtGenerator::SetChannel ( const cChannel Channel)

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

Definition at line 605 of file remux.c.

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

Referenced by cPatPmtGenerator(), cRecorder::cRecorder(), and cTransfer::cTransfer().

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 599 of file remux.c.

References patVersion, and pmtVersion.

Referenced by cRecorder::cRecorder().

Member Data Documentation

uchar* cPatPmtGenerator::esInfoLength
private

Definition at line 295 of file remux.h.

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

int cPatPmtGenerator::numPmtPackets
private

Definition at line 289 of file remux.h.

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

uchar cPatPmtGenerator::pat[TS_SIZE]
private

Definition at line 287 of file remux.h.

Referenced by GeneratePat(), and GetPat().

int cPatPmtGenerator::patCounter
private

Definition at line 290 of file remux.h.

Referenced by cPatPmtGenerator(), and GetPat().

int cPatPmtGenerator::patVersion
private

Definition at line 292 of file remux.h.

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

uchar cPatPmtGenerator::pmt[MAX_PMT_TS][TS_SIZE]
private

Definition at line 288 of file remux.h.

Referenced by GeneratePmt(), and GetPmt().

int cPatPmtGenerator::pmtCounter
private

Definition at line 291 of file remux.h.

Referenced by cPatPmtGenerator(), and GetPmt().

int cPatPmtGenerator::pmtPid
private

Definition at line 294 of file remux.h.

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

int cPatPmtGenerator::pmtVersion
private

Definition at line 293 of file remux.h.

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


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