---
name: "Participant"
section: "3"
platform: "linux"
package: "libccrtp-doc"
version: "2.0.9-4.1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Participant"
---

# Participant(3)

A class of objects representing remote participants (RTP applications) in a multimedia session.

## NAME

Participant - A class of objects representing remote participants (RTP applications) in a multimedia session.

## SYNOPSIS

`#include <sources.h>`

Inherits **SDESItemsHolder**.

### Public Member Functions

const std::string & **getSDESItem** (**SDESItemType** type) const\
 Get the value of an SDES item.  const std::string & **getPRIVPrefix** () const\
 Get the prefix value for the PRIV SDES item.  **Participant** (const std::string &cname)\
 Construct a new participant.  **~Participant** ()\

### Friends

class **ParticipantHandler**\

## Detailed Description

A class of objects representing remote participants (RTP applications) in a multimedia session.

Any RTP socket/queue class that directly or indirectly inherits from **QueueRTCPManager** (and hence has RTCP support) will represent participants from which any RTP or RTCP packet has been received through a **Participant** object. These **Participant** objects are entities such as end systems (user applications, monitors, etc), RTP mixers and RTP translators.

**Participant** objects are identified by a CNAME and provide access to all known data about the source of RTP/RTCP packets, such as the CNAME and any other SDES item. Each participant object is related to one or more synchronization objects (

**See also**

**SyncSource**).

If an RTP application based on ccRTP receives packets from itself (for instance, it is included in the destination list), there will be a **Participant** object that corresponds to the 'local participant' (**RTPApplication**) object.

**Author**

Federico Montesino Pouzols fedemp@altern.org

**Examples** **ccrtptest.cpp**.

## Constructor & Destructor Documentation

### Participant::Participant (const std::string & cname)

Construct a new participant.

**Parameters**

*cname* Unique CNAME identifier.

### Participant::~Participant ()

## Member Function Documentation

### const std::string & Participant::getPRIVPrefix () const` [inline]`

Get the prefix value for the PRIV SDES item.

**Returns**

PRIV SDES item prefix as a string.

**Return values**

*empty* string when no PRIV SDES item has been received from this source.

### const std::string & Participant::getSDESItem (SDESItemType type) const` [inline]`

Get the value of an SDES item. For instance, getSDESItem(SDESItemTypeCNAME), return the CNAME of this **Participant**.

**Parameters**

*type* type of SDES item to get value of.

**Returns**

value of the SDES item as a string.

**Return values**

*empty* string when the value is not known (no RTCP packet with the requested SDES item has been received from this source).

**Examples** **ccrtptest.cpp**, and **rtplisten.cpp**.

## Friends And Related Symbol Documentation

### friend class ParticipantHandler` [friend]`

## Author

Generated automatically by Doxygen for ccRTP from the source code.