TSDuck v3.45-4766
MPEG Transport Stream Toolkit
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ts::BitRateRegulator Class Reference

Regulate execution speed based on a bitrate. More...

#include <tsBitRateRegulator.h>

Inheritance diagram for ts::BitRateRegulator:
Collaboration diagram for ts::BitRateRegulator:

Public Member Functions

 BitRateRegulator (Report *report, int log_level=Severity::Verbose)
 Constructor.
 
 BitRateRegulator (ReporterBase *delegate, int log_level=Severity::Verbose)
 Constructor.
 
virtual ~BitRateRegulator () override
 Destructor.
 
bool muteReport (bool mute)
 Temporarily mute the associated report.
 
void regulate ()
 Regulate the flow, to be called at each packet.
 
void regulate (const BitRate &current_bitrate, bool &flush, bool &bitrate_changed)
 Regulate the flow, to be called at each packet.
 
virtual Reportreport () const override
 Access the Report which is associated with this object.
 
void setBurstPacketCount (PacketCounter count)
 Set the number of packets to burst at a time.
 
void setFixedBitRate (const BitRate &bitrate)
 Set a fixed bitrate for regulation, ignore current bitrate.
 
ReportsetReport (Report *report)
 Associate this object with another Report to log errors.
 
ReporterBasesetReport (ReporterBase *delegate)
 Associate this object with another ReporterBase to log errors.
 
void start ()
 Start regulation, initialize all timers.
 

Static Public Member Functions

static int SilentLevel (bool silent, int default_severity=Severity::Error)
 Compute a log severity level from a "silent" parameter.
 

Detailed Description

Regulate execution speed based on a bitrate.

See also
PCRRegulator

Constructor & Destructor Documentation

◆ BitRateRegulator() [1/2]

ts::BitRateRegulator::BitRateRegulator ( Report report,
int  log_level = Severity::Verbose 
)
explicit

Constructor.

Parameters
[in]reportWhere to report errors. The report object must remain valid as long as this object exists or setReport() is used with another Report object. If report is null, log messages are discarded.
[in]log_levelSeverity level for information messages.

◆ BitRateRegulator() [2/2]

ts::BitRateRegulator::BitRateRegulator ( ReporterBase delegate,
int  log_level = Severity::Verbose 
)
explicit

Constructor.

Parameters
[in]delegateUse the report of another ReporterBase. If delegate is null, log messages are discarded.
[in]log_levelSeverity level for information messages.

Member Function Documentation

◆ setBurstPacketCount()

void ts::BitRateRegulator::setBurstPacketCount ( PacketCounter  count)
inline

Set the number of packets to burst at a time.

Parameters
[in]countNumber of packets to burst at a time.

◆ setFixedBitRate()

void ts::BitRateRegulator::setFixedBitRate ( const BitRate bitrate)
inline

Set a fixed bitrate for regulation, ignore current bitrate.

Parameters
[in]bitrateFixed bitrate to use. When zero, use current bitrate.

◆ regulate() [1/2]

void ts::BitRateRegulator::regulate ( const BitRate current_bitrate,
bool &  flush,
bool &  bitrate_changed 
)

Regulate the flow, to be called at each packet.

Suspend the process when necessary.

Parameters
[in]current_bitrateCurrent bitrate. Ignored if a fixed bitrate was set.
[out]flushSet to true if all previously processed and buffered packets should be flushed.
[out]bitrate_changedSet to true if the bitrate has changed.

◆ regulate() [2/2]

void ts::BitRateRegulator::regulate ( )

Regulate the flow, to be called at each packet.

Suspend the process when necessary. This version is suitable for fixed bitrate.

◆ report()

virtual Report & ts::ReporterBase::report ( ) const
overridevirtualinherited

Access the Report which is associated with this object.

Can be called from another thread only if the Report object is thread-safe.

Returns
A reference to the associated report.

Implements ts::ReporterInterface.

◆ setReport() [1/2]

Report * ts::ReporterBase::setReport ( Report report)
inherited

Associate this object with another Report to log errors.

Parameters
[in]reportWhere to report errors. The report object must remain valid as long as this object exists or setReport() is used with another Report object. If report is null, log messages are discarded.
Returns
The address of the previous Report object or a null pointer if there was none.

◆ setReport() [2/2]

ReporterBase * ts::ReporterBase::setReport ( ReporterBase delegate)
inherited

Associate this object with another ReporterBase to log errors.

Parameters
[in]delegateUse the report of another ReporterBase. If delegate is null, the previous explicit Report is used..
Returns
The address of the previous ReporterBase object or a null pointer if there was none.

◆ muteReport()

bool ts::ReporterBase::muteReport ( bool  mute)
inherited

Temporarily mute the associated report.

Parameters
[in]muteIt true, report() will return a null report (log messages are discarded), until muteReport() is invoked again with mute set to false.
Returns
Previous state of the mute field.

◆ SilentLevel()

static int ts::ReporterBase::SilentLevel ( bool  silent,
int  default_severity = Severity::Error 
)
inlinestaticinherited

Compute a log severity level from a "silent" parameter.

Some subclass methods have a "silent" parameter to avoid reporting errors which may be insignificant, typically when closing a device after an error, in which case the close operation may produce other errors if the previous error left the device in an inconsistent state. While those errors should not be displayed as errors, we still display them at debug level.

Parameters
[in]silentIf true, do not report errors, report debug messages instead.
[in]default_severityDefault severity, in non-silent mode (error by default).
Returns
Error when silent is false, Debug otherwise.

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