Msg File src/inet/transportlayer/rtp/RtpPacket.msg
Name | Type | Description |
---|---|---|
RtpHeader | class |
This class represents an RTP data packet. Real data can either be encapsulated, or simulated by adding length. |
Source code
// // Copyright (C) 2001 Matthias Oppitz <[email protected]> // // SPDX-License-Identifier: LGPL-3.0-or-later // import inet.common.INETDefs; import inet.common.packet.chunk.Chunk; namespace inet::rtp; cplusplus {{ const B RTPPACKET_FIX_HEADERLENGTH = B(12); }} // // This class represents an RTP data packet. Real data can either // be encapsulated, or simulated by adding length. // // The following RTP header fields exist but aren't used: // padding, extension, csrcCount. The csrcList can't be used // because csrcCount is always 0. // class RtpHeader extends FieldsChunk { chunkLength = RTPPACKET_FIX_HEADERLENGTH; // 12-byte fixed header // The rtp version of this ~RtpPacket. uint8_t version = 2; // 2 bits // Set to 1 if padding is used in this ~RtpPacket, 0 otherwise. // This implementation doesn't use padding bytes, so it is always 0. bool paddingFlag = false; // 1 bit // Set to 1, if this ~RtpPacket contains an rtp header extension, 0 otherwise. // This implementation doesn't support rtp header extensions, so it is always 0. bool extensionFlag = false; // 1 bit // uint8_t cc; // 4 bits, csrc count // The marker. bool marker = false; // 1 bit // The type of payload carried in this ~RtpPacket. int8_t payloadType; // 7 bits // The sequence number of this ~RtpPacket. uint16_t sequenceNumber; // 16 bits // The rtp time stamp of this ~RtpPacket. uint32_t timeStamp; // 32 bits // The ssrc identifier of the creator of this ~RtpPacket. uint32_t ssrc; // 32 bits // no mixers, no contributing sources uint32_t csrc[]; // cc * 32 bits }; cplusplus(RtpHeader) {{ public: /** * Writes a one line info about this RtpHeader into the given string. */ virtual std::string str() const override; /** * Writes a longer description about this RtpHeader into the given stream. */ virtual void dump() const; }}