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Public Member Functions | Static Public Attributes | Protected Member Functions | Protected Attributes | Static Protected Attributes | List of all members
PESPacket Class Reference

Allows us to transform TS packets to PES packets, which are used to hold multimedia streams and very similar to PSIP tables. More...

#include <pespacket.h>

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Public Member Functions

 PESPacket (const unsigned char *pesdata)
 
 PESPacket (const std::vector< uint8_t > &pesdata)
 
PESPacket & operator= (const PESPacket &pkt)=delete
 
 PESPacket (const PESPacket &pkt)
 
virtual ~PESPacket ()
 
bool IsClone () const
 
bool AddTSPacket (const TSPacket *tspacket, int cardid, bool &broken)
 
bool IsGood () const
 
const TSHeader * tsheader () const
 
TSHeader * tsheader ()
 
void GetAsTSPackets (std::vector< TSPacket > &output, uint cc) const
 Returns payload only PESPacket as series of TSPackets. More...
 
uint StreamID () const
 
uint Length () const
 
uint ScramblingControl () const
 
bool HighPriority () const
 1 bit Indicates if this is a high priority packet More...
 
bool DataAligned () const
 1 bit Data alignment indicator (must be 0 for video) More...
 
bool CopyRight () const
 1 bit If true packet may contain copy righted material and is known to have once contained materiale with copy rights. More...
 
bool OriginalRecording () const
 1 bit Original Recording More...
 
bool HasPTS () const
 1 bit Presentation Time Stamp field is present More...
 
bool HasDTS () const
 1 bit Decoding Time Stamp field is present More...
 
bool HasESCR () const
 1 bit Elementary Stream Clock Reference field is present More...
 
bool HasESR () const
 1 bit Elementary Stream Rate field is present More...
 
bool HasDSM () const
 1 bit DSM field present (should always be false for broadcasts) More...
 
bool HasACI () const
 1 bit Additional Copy Info field is present More...
 
virtual bool HasCRC () const
 1 bit Cyclic Redundancy Check present More...
 
bool HasExtensionFlags () const
 1 bit Extension flags are present More...
 
uint64_t PTS (void) const
 Presentation Time Stamp, present if HasPTS() is true. More...
 
uint64_t DTS (void) const
 Decode Time Stamp, present if HasDTS() is true. More...
 
uint TSSizeInBuffer () const
 
uint PSIOffset () const
 
const unsigned char * pesdata () const
 
unsigned char * pesdata ()
 
const unsigned char * data () const
 
unsigned char * data ()
 
void SetStreamID (uint id)
 
void SetLength (uint len)
 
void SetTotalLength (uint len)
 
void SetPSIOffset (uint offset)
 
uint CRC (void) const
 
void SetCRC (uint crc)
 
uint CalcCRC (void) const
 
bool VerifyCRC (void) const
 
bool VerifyCRC (int cardid, int pid) const
 

Static Public Attributes

static constexpr uint kMpegCRCSize { 4 }
 

Protected Member Functions

 PESPacket ()=default
 noop constructor, only for use by derived classes More...
 
void Finalize ()
 

Protected Attributes

unsigned char * m_pesData { nullptr }
 Pointer to PES data in full buffer. More...
 
unsigned char * m_fullBuffer { nullptr }
 Pointer to allocated data. More...
 
uint m_psiOffset { 0 }
 AFCOffset + StartOfFieldPointer. More...
 
uint m_ccLast { 255 }
 Continuity counter of last inserted TS Packet. More...
 
uint m_pesDataSize { 0 }
 Number of data bytes (TS header + PES data) More...
 
uint m_allocSize { 0 }
 Total number of bytes we allocated. More...
 
bool m_badPacket { false }
 true if a CRC is not good yet More...
 

Static Protected Attributes

static const uint kTheMagicNoCRCCRC = 0xFFFFFFFF
 

Detailed Description

Allows us to transform TS packets to PES packets, which are used to hold multimedia streams and very similar to PSIP tables.

See also
PSIPTable, TSPacket

Definition at line 27 of file pespacket.h.

Constructor & Destructor Documentation

◆ PESPacket() [1/4]

PESPacket::PESPacket ( )
protecteddefault

noop constructor, only for use by derived classes

◆ PESPacket() [2/4]

PESPacket::PESPacket ( const unsigned char *  pesdata)
inlineexplicit

Definition at line 35 of file pespacket.h.

◆ PESPacket() [3/4]

PESPacket::PESPacket ( const std::vector< uint8_t > &  pesdata)
inlineexplicit

Definition at line 42 of file pespacket.h.

◆ PESPacket() [4/4]

PESPacket::PESPacket ( const PESPacket &  pkt)
inline

Definition at line 55 of file pespacket.h.

◆ ~PESPacket()

virtual PESPacket::~PESPacket ( )
inlinevirtual

Definition at line 76 of file pespacket.h.

Member Function Documentation

◆ operator=()

PESPacket& PESPacket::operator= ( const PESPacket &  pkt)
delete

◆ IsClone()

bool PESPacket::IsClone ( ) const
inline

Definition at line 85 of file pespacket.h.

Referenced by AddTSPacket().

◆ AddTSPacket()

bool PESPacket::AddTSPacket ( const TSPacket *  tspacket,
int  cardid,
bool &  broken 
)

Definition at line 20 of file pespacket.cpp.

Referenced by MPEGStreamData::AssemblePSIP().

◆ IsGood()

bool PESPacket::IsGood ( ) const
inline

Definition at line 90 of file pespacket.h.

Referenced by MPEGStreamData::AssemblePSIP(), and MPEGStreamData::HandleTSTables().

◆ tsheader() [1/2]

const TSHeader* PESPacket::tsheader ( ) const
inline

Definition at line 92 of file pespacket.h.

Referenced by AddTSPacket(), ProgramMapTable::Create(), MPEGStreamData::CreatePATSingleProgram(), MPEGStreamData::CreatePMTSingleProgram(), ATSCStreamData::DeleteCachedTable(), GetAsTSPackets(), DTVRecorder::HandleSingleProgramPAT(), DTVRecorder::HandleSingleProgramPMT(), EventInformationTable::toString(), and ProgramMapTable::toString().

◆ tsheader() [2/2]

TSHeader* PESPacket::tsheader ( )
inline

Definition at line 94 of file pespacket.h.

◆ GetAsTSPackets()

void PESPacket::GetAsTSPackets ( std::vector< TSPacket > &  output,
uint  cc 
) const

Returns payload only PESPacket as series of TSPackets.

Definition at line 122 of file pespacket.cpp.

Referenced by DTVRecorder::HandleSingleProgramPAT(), and DTVRecorder::HandleSingleProgramPMT().

◆ StreamID()

uint PESPacket::StreamID ( ) const
inline

Definition at line 100 of file pespacket.h.

Referenced by MPEGStreamData::AssemblePSIP(), PSIPTable::TableID(), and VerifyCRC().

◆ Length()

uint PESPacket::Length ( ) const
inline

Definition at line 101 of file pespacket.h.

Referenced by AddTSPacket(), CalcCRC(), GetAsTSPackets(), ServiceDescriptionTable::Parse(), DVBEventInformationTable::Parse(), ShortVirtualChannelTable::Parse(), ProgramMapTable::Parse(), PSIPTable::SectionLength(), PSIPTable::toString(), PSIPTable::VerifyPSIP(), and PSIPTable::XMLValues().

◆ ScramblingControl()

uint PESPacket::ScramblingControl ( ) const
inline

Definition at line 105 of file pespacket.h.

◆ HighPriority()

bool PESPacket::HighPriority ( ) const
inline

1 bit Indicates if this is a high priority packet

Definition at line 108 of file pespacket.h.

◆ DataAligned()

bool PESPacket::DataAligned ( ) const
inline

1 bit Data alignment indicator (must be 0 for video)

Definition at line 110 of file pespacket.h.

◆ CopyRight()

bool PESPacket::CopyRight ( ) const
inline

1 bit If true packet may contain copy righted material and is known to have once contained materiale with copy rights.

If false packet may contain copy righted material but is not known to have ever contained materiale with copy rights.

Definition at line 115 of file pespacket.h.

◆ OriginalRecording()

bool PESPacket::OriginalRecording ( ) const
inline

1 bit Original Recording

Definition at line 117 of file pespacket.h.

◆ HasPTS()

bool PESPacket::HasPTS ( ) const
inline

1 bit Presentation Time Stamp field is present

Definition at line 120 of file pespacket.h.

◆ HasDTS()

bool PESPacket::HasDTS ( ) const
inline

1 bit Decoding Time Stamp field is present

Definition at line 122 of file pespacket.h.

◆ HasESCR()

bool PESPacket::HasESCR ( ) const
inline

1 bit Elementary Stream Clock Reference field is present

Definition at line 124 of file pespacket.h.

◆ HasESR()

bool PESPacket::HasESR ( ) const
inline

1 bit Elementary Stream Rate field is present

Definition at line 126 of file pespacket.h.

◆ HasDSM()

bool PESPacket::HasDSM ( ) const
inline

1 bit DSM field present (should always be false for broadcasts)

Definition at line 128 of file pespacket.h.

◆ HasACI()

bool PESPacket::HasACI ( ) const
inline

1 bit Additional Copy Info field is present

Definition at line 130 of file pespacket.h.

◆ HasCRC()

virtual bool PESPacket::HasCRC ( ) const
inlinevirtual

1 bit Cyclic Redundancy Check present

Reimplemented in PSIPTable.

Definition at line 132 of file pespacket.h.

Referenced by PESPacket(), and VerifyCRC().

◆ HasExtensionFlags()

bool PESPacket::HasExtensionFlags ( ) const
inline

1 bit Extension flags are present

Definition at line 134 of file pespacket.h.

◆ PTS()

uint64_t PESPacket::PTS ( void  ) const
inline

Presentation Time Stamp, present if HasPTS() is true.

Definition at line 137 of file pespacket.h.

◆ DTS()

uint64_t PESPacket::DTS ( void  ) const
inline

Decode Time Stamp, present if HasDTS() is true.

Definition at line 148 of file pespacket.h.

◆ TSSizeInBuffer()

uint PESPacket::TSSizeInBuffer ( ) const
inline

Definition at line 163 of file pespacket.h.

Referenced by MPEGStreamData::AssemblePSIP().

◆ PSIOffset()

uint PESPacket::PSIOffset ( ) const
inline

Definition at line 164 of file pespacket.h.

Referenced by MPEGStreamData::AssemblePSIP().

◆ pesdata() [1/2]

const unsigned char* PESPacket::pesdata ( ) const
inline

Definition at line 166 of file pespacket.h.

Referenced by ProgramMapTable::AppendStream(), MPEGStreamData::AssemblePSIP(), PSIPTable::ATSCProtocolVersion(), VirtualChannelTable::ChannelCount(), VirtualChannelTable::ChannelCountRaw(), SpliceInformationTable::CodeWordIndex(), ProgramAssociationTable::Create(), SystemTimeTable::DayDaylightSavingsStarts(), ShortVirtualChannelTable::DefinedChannelsMap(), TimeOffsetTable::Descriptors(), SCTESystemTimeTable::Descriptors(), SCTENetworkInformationTable::DescriptorsLength(), TimeOffsetTable::DescriptorsLength(), ShortVirtualChannelTable::DescriptorsLength(), SpliceInformationTable::EncryptionAlgorithm(), SCTENetworkInformationTable::FirstIndex(), SystemTimeTable::GPSOffset(), SystemTimeTable::GPSRaw(), SCTESystemTimeTable::GPSUTCOffset(), SystemTimeTable::HourDaylightSavingsStarts(), ShortVirtualChannelTable::ID(), SystemTimeTable::InDaylightSavingsTime(), ShortVirtualChannelTable::InverseChannelMap(), PSIPTable::IsCurrent(), SpliceInformationTable::IsEncryptedPacket(), NetworkTextTable::LanguageKey(), PSIPTable::LastSection(), SCTENetworkInformationTable::NumberOfRecords(), NetworkInformationTable::Parse(), ServiceDescriptionTable::Parse(), BouquetAssociationTable::Parse(), SCTENetworkInformationTable::Parse(), DVBEventInformationTable::Parse(), ShortVirtualChannelTable::Parse(), SpliceInformationTable::Parse(), PSIPTable::PrivateIndicator(), PSIPTable::psipdata(), SpliceInformationTable::PTSAdjustment(), MasterGuideTable::SCTEMapId(), CableVirtualChannelTable::SCTEMapId(), PSIPTable::Section(), PSIPTable::SectionLengthRaw(), PSIPTable::SectionSyntaxIndicator(), PSIPTable::SetATSCProtocolVersion(), SpliceInformationTable::SetCodeWordIndex(), PSIPTable::SetCurrent(), SpliceInformationTable::SetEncryptedPacket(), SpliceInformationTable::SetEncryptionAlgorithm(), PSIPTable::SetLastSection(), SpliceInformationTable::SetPTSAdjustment(), PSIPTable::SetSection(), SpliceInformationTable::SetSpliceCommandLength(), SpliceInformationTable::SetSpliceCommandType(), SpliceInformationTable::SetSpliceProtocolVersion(), PSIPTable::SetTableIDExtension(), PSIPTable::SetVersionNumber(), SpliceInformationTable::SpliceCommandLength(), SpliceInformationTable::SpliceCommandType(), SpliceInformationTable::SpliceProtocolVersion(), SCTESystemTimeTable::SystemTimeRaw(), MasterGuideTable::TableCount(), MasterGuideTable::TableCountRaw(), PSIPTable::TableIDExtension(), SCTENetworkInformationTable::TableSubtype(), NetworkTextTable::TableSubtype(), ShortVirtualChannelTable::TableSubtype(), SpliceInformationTable::TimeSignal(), VirtualChannelTable::toString(), VirtualChannelTable::toStringXML(), SCTENetworkInformationTable::TransmissionMedium(), NetworkTextTable::TransmissionMedium(), ShortVirtualChannelTable::TransmissionMedium(), TimeDateTable::UTCdata(), TimeOffsetTable::UTCdata(), PSIPTable::Version(), and ShortVirtualChannelTable::VirtualChannelMap().

◆ pesdata() [2/2]

unsigned char* PESPacket::pesdata ( )
inline

Definition at line 167 of file pespacket.h.

◆ data() [1/2]

const unsigned char* PESPacket::data ( ) const
inline

Definition at line 169 of file pespacket.h.

Referenced by GetAsTSPackets().

◆ data() [2/2]

unsigned char* PESPacket::data ( )
inline

Definition at line 170 of file pespacket.h.

◆ SetStreamID()

void PESPacket::SetStreamID ( uint  id)
inline

Definition at line 172 of file pespacket.h.

Referenced by PSIPTable::SetTableID().

◆ SetLength()

void PESPacket::SetLength ( uint  len)
inline

Definition at line 173 of file pespacket.h.

Referenced by ProgramAssociationTable::CreateBlank(), ProgramMapTable::CreateBlank(), and PSIPTable::SetSectionLength().

◆ SetTotalLength()

void PESPacket::SetTotalLength ( uint  len)
inline

Definition at line 178 of file pespacket.h.

Referenced by ProgramMapTable::AppendStream(), ProgramAssociationTable::Create(), and ProgramMapTable::CreateBlank().

◆ SetPSIOffset()

void PESPacket::SetPSIOffset ( uint  offset)
inline

Definition at line 185 of file pespacket.h.

Referenced by MPEGStreamData::AssemblePSIP().

◆ CRC()

uint PESPacket::CRC ( void  ) const
inline

Definition at line 191 of file pespacket.h.

Referenced by insert_crc(), SCTENetworkInformationTable::toString(), NetworkTextTable::toString(), ShortVirtualChannelTable::toString(), VerifyCRC(), and PSIPTable::VerifyPSIP().

◆ SetCRC()

void PESPacket::SetCRC ( uint  crc)
inline

Definition at line 202 of file pespacket.h.

Referenced by NetworkInformationTable::Mutate(), and ServiceDescriptionTable::Mutate().

◆ CalcCRC()

uint PESPacket::CalcCRC ( void  ) const

Definition at line 161 of file pespacket.cpp.

Referenced by NetworkInformationTable::Mutate(), ServiceDescriptionTable::Mutate(), FirewireDevice::ProcessPATPacket(), VerifyCRC(), and PSIPTable::VerifyPSIP().

◆ VerifyCRC() [1/2]

bool PESPacket::VerifyCRC ( void  ) const

Definition at line 169 of file pespacket.cpp.

Referenced by AddTSPacket(), PSIPTable::InitPESPacket(), NetworkInformationTable::Mutate(), and ServiceDescriptionTable::Mutate().

◆ VerifyCRC() [2/2]

bool PESPacket::VerifyCRC ( int  cardid,
int  pid 
) const

Definition at line 182 of file pespacket.cpp.

◆ Finalize()

void PESPacket::Finalize ( )
inlineprotected

Definition at line 219 of file pespacket.h.

Referenced by ProgramAssociationTable::Create(), and ProgramMapTable::Create().

Member Data Documentation

◆ m_pesData

unsigned char* PESPacket::m_pesData { nullptr }
protected

Pointer to PES data in full buffer.

Definition at line 221 of file pespacket.h.

Referenced by AddTSPacket(), CalcCRC(), GetAsTSPackets(), PESPacket(), and PSIPTable::VerifyPSIP().

◆ m_fullBuffer

unsigned char* PESPacket::m_fullBuffer { nullptr }
protected

Pointer to allocated data.

Definition at line 222 of file pespacket.h.

Referenced by AddTSPacket(), GetAsTSPackets(), PESPacket(), PSIPTable::PSIPTable(), and PSIPTable::VerifyPSIP().

◆ m_psiOffset

uint PESPacket::m_psiOffset { 0 }
protected

AFCOffset + StartOfFieldPointer.

Definition at line 224 of file pespacket.h.

Referenced by AddTSPacket(), and PSIPTable::PSIPTable().

◆ m_ccLast

uint PESPacket::m_ccLast { 255 }
protected

Continuity counter of last inserted TS Packet.

Definition at line 225 of file pespacket.h.

Referenced by AddTSPacket().

◆ m_pesDataSize

uint PESPacket::m_pesDataSize { 0 }
protected

Number of data bytes (TS header + PES data)

Definition at line 226 of file pespacket.h.

Referenced by AddTSPacket(), and PESPacket().

◆ m_allocSize

uint PESPacket::m_allocSize { 0 }
protected

Total number of bytes we allocated.

Definition at line 227 of file pespacket.h.

Referenced by AddTSPacket(), and PSIPTable::VerifyPSIP().

◆ m_badPacket

bool PESPacket::m_badPacket { false }
protected

true if a CRC is not good yet

Definition at line 228 of file pespacket.h.

Referenced by AddTSPacket().

◆ kTheMagicNoCRCCRC

const uint PESPacket::kTheMagicNoCRCCRC = 0xFFFFFFFF
staticprotected

Definition at line 232 of file pespacket.h.

Referenced by CalcCRC().

◆ kMpegCRCSize

constexpr uint PESPacket::kMpegCRCSize { 4 }
staticconstexpr

Definition at line 235 of file pespacket.h.

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