multipath-srt

This is a tool that sends an SRT stream over various network interfaces and receives them with a configurable jitter buffer. After the jitter buffer, the stream is sent to SRT.

Usage

To run the sender:

go run cmd/sender/main.go

To run the receiver:

go run cmd/receiver/main.go

Design

Demuxer

• Read from librtmp, depacketize

• Packetize, add sequence number packet header

• Loop through InterfaceSet on demuxer

• Schedule and send through interfaces

• Read from InterfaceSet bandwidth rates

Muxer

• Receive connection with sessionID
  • If new connection, open SRT connection with sessionID
• Respond with handshake
• Read UDP packets until error
• Depacketize, read sequence number
• Reorder, deduplicate
• Write to SRT, ignoring dropped packets (receiver will handle)

InterfaceSet

NewInterfaceSet(sessionID []byte)  # for handshaking
AddInterface()
RemoveInterface()