DVBStreamHandler Class Reference

#include <dvbstreamhandler.h>

Inheritance diagram for DVBStreamHandler:

Detailed Description

Definition at line 48 of file dvbstreamhandler.h.


Public Member Functions
void	AddListener (MPEGStreamData *data, bool allow_section_reader, bool needs_buffering)
void	RemoveListener (MPEGStreamData *data)
void	RetuneMonitor (void)
bool	IsRunning (void) const
bool	IsRetuneAllowed (void) const
void	SetRetuneAllowed (bool allow, DTVSignalMonitor sigmon, DVBChannel dvbchan)
virtual void	ReaderPaused (int fd)
Static Public Member Functions
static DVBStreamHandler *	Get (uint dvb_device_number)
static void	Return (DVBStreamHandler *&ref)
Private Member Functions
	DVBStreamHandler (uint)
	~DVBStreamHandler ()
void	Start (void)
void	Stop (void)
void	Run (void)
void	RunTS (void)
	Uses TS filtering devices to read a DVB device for tables & data.
void	RunSR (void)
	Uses "Section" reader to read a DVB device for tables.
void	UpdateListeningForEIT (void)
bool	UpdateFiltersFromStreamData (void)
bool	AddPIDFilter (PIDInfo *info)
bool	RemovePIDFilter (uint pid)
bool	RemoveAllPIDFilters (void)
void	CycleFiltersByPriority (void)
void	SetRunning (bool)
PIDPriority	GetPIDPriority (uint pid) const
bool	SupportsTSMonitoring (void)
	Returns true if TS monitoring is supported.
Private Attributes
uint	_dvb_dev_num
QString	_dvr_dev_path
bool	_allow_section_reader
bool	_needs_buffering
bool	_allow_retune
QMutex	_start_stop_lock
bool	_running
QWaitCondition	_running_state_changed
pthread_t	_reader_thread
bool	_using_section_reader
DeviceReadBuffer *	_device_read_buffer
DTVSignalMonitor *	_sigmon
DVBChannel *	_dvbchannel
QMutex	_pid_lock
vector< uint >	_eit_pids
PIDInfoMap	_pid_info
uint	_open_pid_filters
MythTimer	_cycle_timer
QMutex	_listener_lock
vector< MPEGStreamData * >	_stream_data_list
Static Private Attributes
static QMutex	_rec_supports_ts_monitoring_lock
static QMap< uint, bool >	_rec_supports_ts_monitoring
static QMutex	_handlers_lock
static QMap< uint, DVBStreamHandler * >	_handlers
static QMap< uint, uint >	_handlers_refcnt
Friends
void *	run_dvb_stream_handler_thunk (void *param)

Constructor & Destructor Documentation

DVBStreamHandler::DVBStreamHandler ( uint dvb_device_number ) [private]

Definition at line 84 of file dvbstreamhandler.cpp.

Referenced by Get().

DVBStreamHandler::~DVBStreamHandler ( ) [private]

Definition at line 104 of file dvbstreamhandler.cpp.

Member Function Documentation

DVBStreamHandler * DVBStreamHandler::Get ( uint dvb_device_number ) [static]

Definition at line 37 of file dvbstreamhandler.cpp.

Referenced by DVBSignalMonitor::DVBSignalMonitor(), and DVBRecorder::Open().

void DVBStreamHandler::Return ( DVBStreamHandler *& ref ) [static]

Definition at line 57 of file dvbstreamhandler.cpp.

Referenced by DVBRecorder::Close(), and DVBSignalMonitor::~DVBSignalMonitor().

void DVBStreamHandler::AddListener	(	MPEGStreamData *	data,
		bool	allow_section_reader,
		bool	needs_buffering
	)

Definition at line 109 of file dvbstreamhandler.cpp.

Referenced by DVBRecorder::PauseAndWait(), DVBRecorder::StartRecording(), and DVBSignalMonitor::UpdateValues().

void DVBStreamHandler::RemoveListener ( MPEGStreamData * data )

Definition at line 140 of file dvbstreamhandler.cpp.

Referenced by DVBRecorder::PauseAndWait(), DVBRecorder::StartRecording(), and DVBSignalMonitor::Stop().

void DVBStreamHandler::RetuneMonitor ( void )

Definition at line 723 of file dvbstreamhandler.cpp.

Referenced by RunSR(), RunTS(), and DVBSignalMonitor::UpdateValues().

bool DVBStreamHandler::IsRunning ( void ) const [inline]

Definition at line 63 of file dvbstreamhandler.h.

Referenced by RunSR(), RunTS(), Start(), DVBRecorder::StartRecording(), Stop(), and DVBSignalMonitor::UpdateValues().

bool DVBStreamHandler::IsRetuneAllowed ( void ) const [inline]

Definition at line 64 of file dvbstreamhandler.h.

Referenced by DVBSignalMonitor::UpdateValues().

void DVBStreamHandler::SetRetuneAllowed	(	bool	allow,
		DTVSignalMonitor *	sigmon,
		DVBChannel *	dvbchan
	)

Definition at line 704 of file dvbstreamhandler.cpp.

Referenced by DVBSignalMonitor::Stop(), and DVBSignalMonitor::UpdateValues().

virtual void DVBStreamHandler::ReaderPaused ( int fd ) [inline, virtual]

Implements ReaderPausedCB.

Definition at line 71 of file dvbstreamhandler.h.

void DVBStreamHandler::Start ( void ) [private]

Definition at line 177 of file dvbstreamhandler.cpp.

Referenced by AddListener().

void DVBStreamHandler::Stop ( void ) [private]

Definition at line 199 of file dvbstreamhandler.cpp.

Referenced by RemoveListener(), and Start().

void DVBStreamHandler::Run ( void ) [private]

Definition at line 212 of file dvbstreamhandler.cpp.

Referenced by run_dvb_stream_handler_thunk().

void DVBStreamHandler::RunTS ( void ) [private]

Uses TS filtering devices to read a DVB device for tables & data.

This supports all types of MPEG based stream data, but is extreemely slow with DVB over USB 1.0 devices which for efficiency reasons buffer a stream until a full block transfer buffer full of the requested tables is available. This takes a very long time when you are just waiting for a PAT or PMT table, and the buffer is hundreds of packets in size.

Definition at line 234 of file dvbstreamhandler.cpp.

Referenced by Run().

void DVBStreamHandler::RunSR ( void ) [private]

Uses "Section" reader to read a DVB device for tables.

This currently only supports DVB streams, ATSC and the raw MPEG streams used by some cable and satelite providers is not supported.

Definition at line 369 of file dvbstreamhandler.cpp.

Referenced by Run().

void DVBStreamHandler::UpdateListeningForEIT ( void ) [private]

Definition at line 616 of file dvbstreamhandler.cpp.

Referenced by UpdateFiltersFromStreamData().

bool DVBStreamHandler::UpdateFiltersFromStreamData ( void ) [private]

Definition at line 646 of file dvbstreamhandler.cpp.

Referenced by RunSR(), and RunTS().

bool DVBStreamHandler::AddPIDFilter ( PIDInfo * info ) [private]

Definition at line 422 of file dvbstreamhandler.cpp.

Referenced by SupportsTSMonitoring(), and UpdateFiltersFromStreamData().

bool DVBStreamHandler::RemovePIDFilter ( uint pid ) [private]

Definition at line 571 of file dvbstreamhandler.cpp.

Referenced by RemoveAllPIDFilters(), SupportsTSMonitoring(), and UpdateFiltersFromStreamData().

bool DVBStreamHandler::RemoveAllPIDFilters ( void ) [private]

Definition at line 599 of file dvbstreamhandler.cpp.

Referenced by RunSR(), and RunTS().

void DVBStreamHandler::CycleFiltersByPriority ( void ) [private]

Definition at line 461 of file dvbstreamhandler.cpp.

Referenced by AddPIDFilter(), RemovePIDFilter(), and UpdateFiltersFromStreamData().

void DVBStreamHandler::SetRunning ( bool is_running ) [private]

Definition at line 932 of file dvbstreamhandler.cpp.

Referenced by Run(), RunTS(), and Stop().

PIDPriority DVBStreamHandler::GetPIDPriority ( uint pid ) const [private]

Definition at line 938 of file dvbstreamhandler.cpp.

Referenced by AddPIDFilter(), and CycleFiltersByPriority().

bool DVBStreamHandler::SupportsTSMonitoring ( void ) [private]

Returns true if TS monitoring is supported.

NOTE: If you are using a DEC2000-t device you need to apply the patches provided by Peter Beutner for it, see http://www.gossamer-threads.com/lists/mythtv/dev/166172 These patches should make it in to Linux 2.6.15 or 2.6.16.

Definition at line 763 of file dvbstreamhandler.cpp.

Referenced by Run().