mediax::sap::SapListener Class Reference

Class definition of the SAPListener. More...

#include <sap_listener.h>

Collaboration diagram for mediax::sap::SapListener:

Public Member Functions
	SapListener ()
	Construct a new SAPListener::SAPListener object.
	~SapListener ()
	Destroy the SAPListener::SAPListener object.
const std::map< std::string, ::mediax::sap::SdpMessage, std::less<> > &	GetSapAnnouncements () const
	Get a list of SAP/SDP streams seen on the network.
bool	GetSapAnnouncement (std::string_view session_name, SdpMessage **sdp_message)
	Get the Sap Announcement object.
void	RegisterSapListener (std::string_view session_name, const ::mediax::sap::SapCallback &callback, void *data)
	Register a callback for our session_name.
bool	GetStreamInformation (std::string_view session_name, ::mediax::rtp::StreamInformation *stream_information) const
	Get the stream information for a given session name.
void	Start ()
	Start the SAP/SDP announcements thread.
void	Stop ()
	Stop the SAP/SDP announcement thread.

Static Public Member Functions
static SapListener &	GetInstance ()
	A Singleton get method.

Private Member Functions
SdpTypeEnum	GetType (const std::string_view &line) const
	Get the SDP attribute type doe a single SDP line of text.
std::map< std::string, std::string, std::less<> >	ParseAttributes1 (const std::string_view &line) const
	Parse any attributes.
std::map< std::string, std::string, std::less<> >	ParseAttributes (const std::string_view &line) const
	Parse any attributes.
std::map< std::string, std::string, std::less<> >	ParseAttributesEqual (const std::string &line) const
	Parse attributes with equals.
bool	SapStore (std::array< uint8_t, mediax::rtp::kMaxUdpData > *udpdata, uint32_t size)
	Store or update the SAP data.

Static Private Member Functions
static void	SapListenerThread (SapListener *sap)
	Function to broadcast SAP announcements for a list of streams.

Private Attributes
std::map< std::string, SapCallbackInfo, std::less<> >	callbacks_
	The list of SAP/SDP announcement callbacks.
std::map< std::string, SdpMessage, std::less<> >	announcements_
	The list of SAP/SDP announcements.
std::array< uint8_t, mediax::rtp::kMaxUdpData >	udpdata_
	The buffer for the UDP data.
std::thread	thread_
	The thread for the SAP/SDP announcements.
int	sockfd_
	The socket for the SAP/SDP announcements.
struct sockaddr_in	multicast_addr_
	The multicast address for the SAP/SDP announcements.
void *	data_
	Callback data.

Static Private Attributes
static std::unique_ptr< SapListener >	singleton_
	The pointer to the SAPListener singleton.
static bool	running_ = false
	The SAP/SDP announcements thread running flag.

Detailed Description

Class definition of the SAPListener.

Member Function Documentation

GetSapAnnouncement()

bool mediax::sap::SapListener::GetSapAnnouncement	(	std::string_view	session_name,
		SdpMessage **	sdp_message
	)

Get the Sap Announcement object.

Parameters

session_name	The session name we want
sdp_message	The pointer to the SDP message data

Returns

true If found, i.e. SAP message recieved

false If not yet seen, not in list

GetSapAnnouncements()

const std::map< std::string, SdpMessage, std::less<> > & mediax::sap::SapListener::GetSapAnnouncements

(

)

const

Get a list of SAP/SDP streams seen on the network.

Returns

The vectored list of SAP/SDP streams seen on the network

GetStreamInformation()

bool mediax::sap::SapListener::GetStreamInformation	(	std::string_view	session_name,
		::mediax::rtp::StreamInformation *	stream_information
	)		const

Get the stream information for a given session name.

Parameters

session_name	The SAP/SDP session name
stream_information	The stream information being updated

Returns

bool, true if the stream information was updated

GetType()

SdpTypeEnum mediax::sap::SapListener::GetType ( const std::string_view &  line ) const

private

Get the SDP attribute type doe a single SDP line of text.

Returns

SdpTypeEnum attribute enum

ParseAttributes()

std::map< std::string, std::string, std::less<> > mediax::sap::SapListener::ParseAttributes ( const std::string_view &  line ) const

private

Parse any attributes.

Parameters

line

Returns

std::map<std::string, std::string, std::less<>>

ParseAttributes1()

std::map< std::string, std::string, std::less<> > mediax::sap::SapListener::ParseAttributes1 ( const std::string_view &  line ) const

private

Parse any attributes.

Parameters

line

Returns

std::map<std::string, std::string>

ParseAttributesEqual()

std::map< std::string, std::string, std::less<> > mediax::sap::SapListener::ParseAttributesEqual ( const std::string &  line ) const

private

Parse attributes with equals.

Parameters

line

Returns

std::map<std::string, std::string>

RegisterSapListener()

void mediax::sap::SapListener::RegisterSapListener	(	std::string_view	session_name,
		const ::mediax::sap::SapCallback &	callback,
		void *	data
	)

Register a callback for our session_name.

Parameters

session_name	Advertised session name
callback	The callback to notify when SAP/SDP message received
data	The data to pass to the callback

SapListenerThread()

void mediax::sap::SapListener::SapListenerThread ( SapListener *  sap )

staticprivate

Function to broadcast SAP announcements for a list of streams.

Only needs to be called once to start the broadcast thread

Parameters

sap	SAPListener object

SapStore()

bool mediax::sap::SapListener::SapStore ( std::array< uint8_t, mediax::rtp::kMaxUdpData > *  udpdata, uint32_t  size  )

private

Store or update the SAP data.

Returns

true

false

Remove the first two characters now we know the type

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

• src/sap/sap_listener.h
• src/sap/sap_listener.cc