vdr  2.2.0
Public Member Functions | Protected Member Functions | Private Member Functions | Private Attributes | List of all members
cTsPayload Class Reference

#include <remux.h>

Public Member Functions

 cTsPayload (void)
 
 cTsPayload (uchar *Data, int Length, int Pid=-1)
 
void Setup (uchar *Data, int Length, int Pid=-1)
 
bool AtTsStart (void)
 
bool AtPayloadStart (void)
 
int Available (void)
 
int Used (void)
 
bool Eof (void) const
 
void Statistics (void) const
 
uchar GetByte (void)
 
bool SkipBytes (int Bytes)
 
bool SkipPesHeader (void)
 
int GetLastIndex (void)
 
void SetByte (uchar Byte, int Index)
 
bool Find (uint32_t Code)
 

Protected Member Functions

void Reset (void)
 

Private Member Functions

uchar SetEof (void)
 

Private Attributes

uchardata
 
int length
 
int pid
 
int index
 
int numPacketsPid
 
int numPacketsOther
 

Detailed Description

Definition at line 221 of file remux.h.

Constructor & Destructor Documentation

cTsPayload::cTsPayload ( void  )

Definition at line 233 of file remux.c.

cTsPayload::cTsPayload ( uchar Data,
int  Length,
int  Pid = -1 
)

Creates a new TS payload handler and calls Setup() with the given Data.

Definition at line 241 of file remux.c.

References Setup.

Member Function Documentation

bool cTsPayload::AtPayloadStart ( void  )
inline

Returns true if this payload handler is currently pointing to the first byte of a TS packet that starts a new payload.

Definition at line 247 of file remux.h.

References TsPayloadStart().

Referenced by cMpeg2Parser::Parse().

bool cTsPayload::AtTsStart ( void  )
inline

Returns true if this payload handler is currently pointing to first byte of a TS packet.

Definition at line 244 of file remux.h.

References TS_SIZE.

Referenced by cMpeg2Parser::Parse().

int cTsPayload::Available ( void  )
inline

Returns the number of raw bytes (including any TS headers) still available in the TS payload handler.

Definition at line 250 of file remux.h.

bool cTsPayload::Eof ( void  ) const
inline

Returns true if all available bytes of the TS payload have been processed.

Definition at line 257 of file remux.h.

Referenced by cMpeg2Parser::Parse().

bool cTsPayload::Find ( uint32_t  Code)

Searches for the four byte sequence given in Code and returns true if it was found within the payload data.

The next call to GetByte() will return the value immediately following the Code. If the code was not found, the read index will remain the same as before this call, so that several calls to Find() can be performed starting at the same index.. The special code 0xFFFFFFFF can not be searched, because this value is used to initialize the scanner.

Definition at line 321 of file remux.c.

References EMPTY_SCANNER.

Referenced by cMpeg2Parser::Parse().

uchar cTsPayload::GetByte ( void  )

Gets the next byte of the TS payload, skipping any intermediate TS header data.

Definition at line 267 of file remux.c.

References MAX_TS_PACKETS_FOR_VIDEO_FRAME_DETECTION, PATPID, TS_SIZE, TS_SYNC_BYTE, TsHasPayload(), TsPayloadOffset(), TsPayloadStart(), and TsPid().

Referenced by cMpeg2Parser::Parse().

int cTsPayload::GetLastIndex ( void  )

Returns the index into the TS data of the payload byte that has most recently been read.

If no byte has been read yet, -1 will be returned.

Definition at line 310 of file remux.c.

Referenced by cMpeg2Parser::Parse().

void cTsPayload::Reset ( void  )
protected

Definition at line 252 of file remux.c.

void cTsPayload::SetByte ( uchar  Byte,
int  Index 
)

Sets the TS data byte at the given Index to the value Byte.

Index should be one that has been retrieved by a previous call to GetIndex(), otherwise the behaviour is undefined. The current read index will not be altered by a call to this function.

Definition at line 315 of file remux.c.

uchar cTsPayload::SetEof ( void  )
private

Definition at line 246 of file remux.c.

void cTsPayload::Setup ( uchar Data,
int  Length,
int  Pid = -1 
)

Sets up this TS payload handler with the given Data, which points to a sequence of Length bytes of complete TS packets.

Any incomplete TS packet at the end will be ignored. If Pid is given, only TS packets with data for that PID will be processed. Otherwise the PID of the first TS packet defines which payload will be delivered. Any intermediate TS packets with different PIDs will be skipped.

Definition at line 259 of file remux.c.

References TsPid().

bool cTsPayload::SkipBytes ( int  Bytes)

Skips the given number of bytes in the payload and returns true if there is still data left to read.

Definition at line 298 of file remux.c.

bool cTsPayload::SkipPesHeader ( void  )

Skips all bytes belonging to the PES header of the payload.

Definition at line 305 of file remux.c.

References PesPayloadOffset(), and TsPayloadOffset().

Referenced by cMpeg2Parser::Parse().

void cTsPayload::Statistics ( void  ) const

May be called after a new frame has been detected, and will log a warning if the number of TS packets required to determine the frame type exceeded some safety limits.

Definition at line 338 of file remux.c.

References dsyslog, WRN_TS_PACKETS_FOR_FRAME_DETECTOR, and WRN_TS_PACKETS_FOR_VIDEO_FRAME_DETECTION.

Referenced by cMpeg2Parser::Parse().

int cTsPayload::Used ( void  )
inline

Returns the number of raw bytes that have already been used (e.g.

by calling GetByte()). Any TS packet of which at least a single byte has been delivered is counted with its full size.

Definition at line 253 of file remux.h.

References TS_SIZE.

Referenced by cMpeg2Parser::Parse().

Member Data Documentation

uchar* cTsPayload::data
private

Definition at line 223 of file remux.h.

int cTsPayload::index
private

Definition at line 226 of file remux.h.

int cTsPayload::length
private

Definition at line 224 of file remux.h.

int cTsPayload::numPacketsOther
private

Definition at line 228 of file remux.h.

int cTsPayload::numPacketsPid
private

Definition at line 227 of file remux.h.

int cTsPayload::pid
private

Definition at line 225 of file remux.h.


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