RtpPayloadL24 Class Reference

RTP payload handler for 24-bit linear audio (L24). More...

#include <rtppayload.h>

Inheritance diagram for RtpPayloadL24:

Collaboration diagram for RtpPayloadL24:

Public Member Functions
	RtpPayloadL24 (uint32_t sampleRate=48000, int channels=2)
	Constructs an L24 payload handler.
uint8_t	payloadType () const override
	Returns the RTP payload type number.
uint32_t	clockRate () const override
	Returns the RTP timestamp clock rate in Hz.
RtpPacket::List	pack (const void *mediaData, size_t size) override
	Fragments media data into RTP payload packets.
Buffer	unpack (const RtpPacket::List &packets) override
	Reassembles RTP payload packets into media data.
void	setPayloadType (uint8_t pt)
	Sets the RTP payload type number.
int	channels () const
	Returns the number of audio channels.
uint32_t	sampleRate () const
	Returns the audio sample rate.
Public Member Functions inherited from RtpPayload
virtual	~RtpPayload ()=default
	Destructor.
virtual size_t	maxPayloadSize () const
	Returns the maximum payload size per packet.

Additional Inherited Members
Protected Member Functions inherited from RtpPayload
	RtpPayload ()=default
	Default constructor (protected; use a concrete subclass).

Detailed Description

RTP payload handler for 24-bit linear audio (L24).

Implements packing/unpacking of 24-bit linear PCM audio samples as used by AES67 and ST 2110-30. Samples are packed in network byte order (big-endian), interleaved by channel.

The payload type defaults to 97 (dynamic range). Clock rate matches the audio sample rate (typically 48000 Hz).

Example

RtpPayloadL24 payload(48000, 2); // 48kHz, stereo
auto packets = payload.pack(audioData, audioSize);

Constructor & Destructor Documentation

RtpPayloadL24()

RtpPayloadL24::RtpPayloadL24	(	uint32_t	sampleRate = 48000,
		int	channels = 2
	)

Constructs an L24 payload handler.

Parameters

sampleRate	Audio sample rate in Hz (default 48000).
channels	Number of audio channels (default 2).

Member Function Documentation

clockRate()

uint32_t RtpPayloadL24::clockRate ( ) const

inlineoverridevirtual

Returns the RTP timestamp clock rate in Hz.

Implements RtpPayload.

pack()

RtpPacket::List RtpPayloadL24::pack ( const void *  mediaData, size_t  size  )

overridevirtual

Fragments media data into RTP payload packets.

Each returned RtpPacket includes space for the 12-byte RTP header at the start, followed by any payload-specific header, followed by the media data fragment. All returned packets share a single Buffer::Ptr.

Parameters

mediaData	Pointer to the media data.
size	Size of the media data in bytes.

Returns

List of RtpPackets sharing one buffer.

Implements RtpPayload.

payloadType()

uint8_t RtpPayloadL24::payloadType ( ) const

inlineoverridevirtual

Returns the RTP payload type number.

Implements RtpPayload.

unpack()

Buffer RtpPayloadL24::unpack ( const RtpPacket::List &  packets )

overridevirtual

Reassembles RTP payload packets into media data.

Parameters

packets

The list of packets to reassemble.

Returns

Buffer containing the reassembled media data.

Implements RtpPayload.

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

• include/promeki/network/rtppayload.h