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40 lines
1.3 KiB
Go
40 lines
1.3 KiB
Go
/*
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Package rtcp implements encoding and decoding of RTCP packets according to RFCs 3550 and 5506.
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RTCP is a sister protocol of the Real-time Transport Protocol (RTP). Its basic functionality
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and packet structure is defined in RFC 3550. RTCP provides out-of-band statistics and control
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information for an RTP session. It partners with RTP in the delivery and packaging of multimedia data,
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but does not transport any media data itself.
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The primary function of RTCP is to provide feedback on the quality of service (QoS)
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in media distribution by periodically sending statistics information such as transmitted octet
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and packet counts, packet loss, packet delay variation, and round-trip delay time to participants
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in a streaming multimedia session. An application may use this information to control quality of
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service parameters, perhaps by limiting flow, or using a different codec.
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Decoding RTCP packets:
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pkts, err := rtcp.Unmarshal(rtcpData)
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// ...
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for _, pkt := range pkts {
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switch p := pkt.(type) {
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case *rtcp.CompoundPacket:
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...
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case *rtcp.PictureLossIndication:
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...
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default:
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...
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}
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}
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Encoding RTCP packets:
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pkt := &rtcp.PictureLossIndication{
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SenderSSRC: senderSSRC,
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MediaSSRC: mediaSSRC
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}
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pliData, err := pkt.Marshal()
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// ...
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*/
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package rtcp
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