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srs-spi/README.md

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SRS-SIP

Usage

Pre-requisites:

  • Go 1.23+
  • Node 20+

Then run

git clone https://github.com/ossrs/srs-sip
cd srs-sip
./build.sh

If on Windows

./build.bat

Run the program:

./objs/srs-sip

Use docker

docker run -id -p 1985:1985 -p 5060:5060 -p 8025:8025 -p 9000:9000 -p 5060:5060/udp -p 8000:8000/udp --name srs-sip --env CANDIDATE=your_ip ossrs/srs-sip:alpha

Sequence

  1. 注册流程
sequenceDiagram
    Device ->> SRS-SIP : 1. Register
    SRS-SIP ->> Device : 2. 401
    Device ->> SRS-SIP : 3. Register
    SRS-SIP ->> Device : 4. 200 OK
  1. 播放视频流程 Player、SRS-SIP、SRS Server和GB28181 Device的交互图如下
sequenceDiagram
    Player ->> SRS-SIP : 1. Play Request(with id)
    SRS-SIP ->>  SRS : 2. Publish Request(with ssrc and id)
    SRS ->> SRS-SIP : 3. Response(with port)
    SRS-SIP ->>  Device : 4. Invite(with port)
    Device ->> SRS-SIP : 5. 200 OK
    SRS-SIP ->> Player : 6. 200 OK(with url)
    Device -->> SRS : Media Stream
    Player ->> SRS : 7. Play
    SRS -->> Player : Media Stream
    Player ->> SRS-SIP : 8. Stop Request
    SRS-SIP ->> SRS : 9. Unpublish Request
    SRS-SIP ->> Device : 10. Bye
  1. 通过SRS-SIP提供的API接口/srs-sip/v1/invitePlayer主动发起播放请求携带设备的通道ID
  2. SRS-SIP向SRS发起推流请求携带SSRC和IDSSRC是设备推流时RTP里的字段
  3. SRS响应推流请求并返回收流端口。目前SRS仅支持TCP单端口模式在配置文件stream_caster.listen中配置
  4. SRS-SIP通过GB28181协议向设备发起Invite请求携带SRS的收流端口及SSRC
  5. 设备响应成功
  6. SRS-SIP响应成功携带URL用于播放
  7. Player通过返回的URL进行拉流播放
  8. Player停止播放
  9. SRS-SIP通知SRS停止收流
  10. SRS-SIP通过设备停止推流