ts::PluginEventContext Class Reference

Context of a plugin event. More...

#include <tsPluginEventContext.h>

Public Member Functions
	PluginEventContext (uint32_t event_code, const UString &plugin_name, size_t plugin_index, size_t plugin_count, Plugin *plugin, Object *plugin_data=nullptr, const BitRate &bitrate=0, PacketCounter plugin_packets=0, PacketCounter total_packets=0)
	Constructor.
BitRate	bitrate () const
	Get the plugin bitrate.
uint32_t	eventCode () const
	Get the event code.
Plugin *	plugin () const
	Get the plugin which signalled the event.
size_t	pluginCount () const
	Get the total number of plugins in the processing chain.
Object *	pluginData () const
	Get the plugin-specific data for this event.
size_t	pluginIndex () const
	Get the plugin index in the processing chain.
UString	pluginName () const
	Get the plugin name.
PacketCounter	pluginPackets () const
	Get the number of packets which passed through the plugin.
PacketCounter	totalPackets () const
	Get the total number of packets which passed through the plugin thread.

Detailed Description

Context of a plugin event.

Each time a plugin signals an event for the application, a PluginEventContext instance is built and passed to all registered event handlers for that event.

Constructor & Destructor Documentation

PluginEventContext()

ts::PluginEventContext::PluginEventContext	(	uint32_t	event_code,
		const UString &	plugin_name,
		size_t	plugin_index,
		size_t	plugin_count,
		Plugin *	plugin,
		Object *	plugin_data = nullptr,
		const BitRate &	bitrate = 0,
		PacketCounter	plugin_packets = 0,
		PacketCounter	total_packets = 0
	)

Constructor.

Parameters

[in]	event_code	A plugin-defined 32-bit code describing the event type. There is no predefined list of event codes. Plugin should define their own codes based on meaningful 4-char literals in order to avoid value clashes, for instance: static constexpr uint32_t FAIL_EVENT = 'FAIL';
[in]	plugin_name	Plugin name as found in the plugin registry.
[in]	plugin_index	Plugin index in the chain. For tsp, plugins are numbered from 0 (the input plugin) to N-1 (the output plugin). For tsswitch, the input plugins are numbered from 0 to N-2 and the output plugin is N-1.
[in]	plugin_count	Total number N of plugins in the chain.
[in]	plugin	Address of the plugin instance which signalled the event. If this is an application-defined plugin which exposes more services, the event handler may try a dynamic_cast on this pointer.
[in]	plugin_data	Address of the plugin-specific data. It can be a null pointer. In the case of an application-defined plugin the application may try a dynamic_cast on this pointer to an expected type
[in]	bitrate	Known bitrate in the context of the plugin at the time of the event.
[in]	plugin_packets	Number of packets which passed through the plugin at the time of the event.
[in]	total_packets	Total number of packets which passed through the plugin thread at the time of the event. It can be more than plugin_packets if some packets were not submitted to the plugin (deleted or excluded packets).

Member Function Documentation

eventCode()

uint32_t ts::PluginEventContext::eventCode ( ) const

inline

Get the event code.

Returns

A plugin-defined 32-bit code describing the event type.

pluginName()

UString ts::PluginEventContext::pluginName ( ) const

inline

Get the plugin name.

Returns

Plugin name as found in the plugin registry.

pluginIndex()

size_t ts::PluginEventContext::pluginIndex ( ) const

inline

Get the plugin index in the processing chain.

Returns

Plugin index in the chain. For tsp, plugins are numbered from 0 (the input plugin) to N-1 (the output plugin). For tsswitch, the input plugins are numbered from 0 to N-2 and the output plugin is N-1.

pluginCount()

size_t ts::PluginEventContext::pluginCount ( ) const

inline

Get the total number of plugins in the processing chain.

Returns

Total number of plugins in the chain.

plugin()

Plugin * ts::PluginEventContext::plugin ( ) const

inline

Get the plugin which signalled the event.

Returns

Address of the plugin instance which signalled the event. If this is an application-defined plugin which exposes more services, the event handler may try a dynamic_cast on this pointer.

pluginData()

Object * ts::PluginEventContext::pluginData ( ) const

inline

Get the plugin-specific data for this event.

Returns

Address of the plugin-specific data. It can be a null pointer. In the case of an application-defined plugin the application may try a dynamic_cast on this pointer to an expected type

bitrate()

BitRate ts::PluginEventContext::bitrate ( ) const

inline

Get the plugin bitrate.

Returns

Known bitrate in the context of the plugin at the time of the event.

pluginPackets()

PacketCounter ts::PluginEventContext::pluginPackets ( ) const

inline

Get the number of packets which passed through the plugin.

Returns

Number of packets which passed through the plugin at the time of the event.

totalPackets()

PacketCounter ts::PluginEventContext::totalPackets ( ) const

inline

Get the total number of packets which passed through the plugin thread.

Returns

Total number of packets which passed through the plugin thread at the time of the event. It can be more than plugin_packets if some packets were not submitted to the plugin (deleted or excluded packets).

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

• tsPluginEventContext.h