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srs/trunk/doc/Architecture.md

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# Architecture
The architecture of SRS.
## Architecture
The stream architecture of SRS.
```
+----------+ +----------+
| Upstream | | Deliver |
+---|------+ +----|-----+
+---+------------------+------+---------------------+----------------+
| Input | SRS(Simple RTMP Server) | Output |
+----------------------+----------------------------+----------------+
| | +-> DASH ----------------+-> DASH player |
| Encoder(1) | +-> RTMP/HDS -----------+-> Flash player |
| (FMLE,OBS, --RTMP-+->-+-> HLS/HTTP ------------+-> M3U8 player |
| FFmpeg,XSPLIT, | +-> FLV/MP3/Aac/Ts ------+-> HTTP player |
| ......) | +-> Fowarder ------------+-> RTMP server |
| | +-> Transcoder ----------+-> RTMP server |
| | +-> EXEC(5) -------------+-> External app |
| | +-> DVR -----------------+-> FLV file |
| | +-> BandwidthTest -------+-> Flash |
| | +-> WebRTC --------------+-> Flash |
+----------------------+ | |
| WebRTC Client | +--> RTMP | |
| (H5,Native...) --RTC-+---+---> WebRTC ------------+-> WebRTC Client|
+----------------------+ | |
| MediaSource(2) | | |
| (RTSP,FILE, | | |
| HTTP,HLS, --pull-+->-- Ingester(3) -(rtmp)----+-> SRS |
| Device, | | |
| ......) | | |
+----------------------+ | |
| MediaSource(2) | | |
| (MPEGTSoverUDP | | |
| HTTP-FLV, --push-+->- StreamCaster(4) -(rtmp)-+-> SRS |
| SRT, | | |
| ......) | | |
+----------------------+ | |
| FFMPEG --push(srt)--+->- SRTModule(5) ---(rtmp)-+-> SRS |
+----------------------+----------------------------+----------------+
```
Remark:
1. Encoder: Encoder pushs RTMP stream to SRS.
1. MediaSource: Supports any media source, ingesting by ffmpeg.
1. Ingester: Forks a ffmpeg(or other tools) to ingest as rtmp to SRS, please read [Ingest][v4_CN_Ingest].
1. Streamer: Remuxs other protocols to RTMP, please read [Streamer][v4_CN_Streamer].
1. EXEC: Like NGINX-RTMP, EXEC forks external tools for events, please read [ng-exec][v4_CN_NgExec].
1. SRTModule: A isolate module which run in [hybrid](https://github.com/ossrs/srs/issues/1147#issuecomment-577574883) model.
## System Requirements
Supported operating systems and hardware:
* Linux, with x86, x86-64 or arm.
* Mac, with intel chip.
* Other OS, such as Windows, please use [docker][docker-srs4].
[authors]: https://github.com/ossrs/srs/blob/4.0release/trunk/AUTHORS.txt
[bigthanks]: https://ossrs.net/lts/zh-cn/product#release40
[st]: https://github.com/ossrs/state-threads
[st2]: https://github.com/ossrs/state-threads/tree/srs
[state-threads]: https://github.com/ossrs/state-threads/tree/srs
[nginx]: http://nginx.org/
[srs]: https://github.com/ossrs/srs
[gitee]: https://gitee.com/ossrs/srs
[srs-bench]: https://github.com/ossrs/srs-bench
[srs-ngb]: https://github.com/ossrs/srs-console
[srs-librtmp]: https://github.com/ossrs/srs-librtmp
[gitlab]: https://gitlab.com/winlinvip/srs-gitlab
[console]: http://ossrs.net:8080/console
[docker-srs3]: https://github.com/ossrs/srs-docker/tree/v3#usage
[docker-srs4]: https://github.com/ossrs/srs-docker/tree/v4#usage
[docker-dev]: https://github.com/ossrs/srs-docker/tree/dev#usage
[v4_CN_Git]: https://ossrs.net/lts/zh-cn/docs/v4/doc/git
[v4_EN_Git]: https://ossrs.io/lts/en-us/docs/v4/doc/git
[v4_CN_SampleRTMP]: https://ossrs.net/lts/zh-cn/docs/v4/doc/sample-rtmp
[v4_EN_SampleRTMP]: https://ossrs.io/lts/en-us/docs/v4/doc/sample-rtmp
[v4_CN_SampleRTMPCluster]: https://ossrs.net/lts/zh-cn/docs/v4/doc/sample-rtmp-cluster
[v4_EN_SampleRTMPCluster]: https://ossrs.io/lts/en-us/docs/v4/doc/sample-rtmp-cluster
[v4_CN_SampleOriginCluster]: https://ossrs.net/lts/zh-cn/docs/v4/doc/sample-origin-cluster
[v4_EN_SampleOriginCluster]: https://ossrs.io/lts/en-us/docs/v4/doc/sample-origin-cluster
[v4_CN_SampleHLS]: https://ossrs.net/lts/zh-cn/docs/v4/doc/sample-hls
[v4_EN_SampleHLS]: https://ossrs.io/lts/en-us/docs/v4/doc/sample-hls
[v4_CN_SampleTranscode2HLS]: https://ossrs.net/lts/zh-cn/docs/v4/doc/sample-transcode-to-hls
[v4_EN_SampleTranscode2HLS]: https://ossrs.io/lts/en-us/docs/v4/doc/sample-transcode-to-hls
[v4_CN_SampleFFMPEG]: https://ossrs.net/lts/zh-cn/docs/v4/doc/sample-ffmpeg
[v4_EN_SampleFFMPEG]: https://ossrs.io/lts/en-us/docs/v4/doc/sample-ffmpeg
[v4_CN_SampleForward]: https://ossrs.net/lts/zh-cn/docs/v4/doc/sample-forward
[v4_EN_SampleForward]: https://ossrs.io/lts/en-us/docs/v4/doc/sample-forward
[v4_CN_SampleRealtime]: https://ossrs.net/lts/zh-cn/docs/v4/doc/sample-realtime
[v4_EN_SampleRealtime]: https://ossrs.io/lts/en-us/docs/v4/doc/sample-realtime
[v4_CN_WebRTC]: https://ossrs.net/lts/zh-cn/docs/v4/doc/webrtc
[v4_EN_WebRTC]: https://ossrs.io/lts/en-us/docs/v4/doc/webrtc
[v4_CN_WebRTC#config-candidate]: https://ossrs.net/lts/zh-cn/docs/v4/doc/webrtc#config-candidate
[v4_EN_WebRTC#config-candidate]: https://ossrs.io/lts/en-us/docs/v4/doc/webrtc#config-candidate
[v4_CN_SampleARM]: https://ossrs.net/lts/zh-cn/docs/v4/doc/sample-arm
[v4_EN_SampleARM]: https://ossrs.io/lts/en-us/docs/v4/doc/sample-arm
[v4_CN_SampleIngest]: https://ossrs.net/lts/zh-cn/docs/v4/doc/sample-ingest
[v4_EN_SampleIngest]: https://ossrs.io/lts/en-us/docs/v4/doc/sample-ingest
[v4_CN_SampleHTTP]: https://ossrs.net/lts/zh-cn/docs/v4/doc/sample-http
[v4_EN_SampleHTTP]: https://ossrs.io/lts/en-us/docs/v4/doc/sample-http
[v4_CN_SampleDemo]: https://ossrs.net/lts/zh-cn/docs/v4/doc/sampleDemo
[v4_EN_SampleDemo]: https://ossrs.io/lts/en-us/docs/v4/doc/sampleDemo
[v4_CN_OriginCluster]: https://ossrs.net/lts/zh-cn/docs/v4/doc/origin-cluster
[v4_EN_OriginCluster]: https://ossrs.io/lts/en-us/docs/v4/doc/origin-cluster
[v4_CN_REUSEPORT]: https://ossrs.net/lts/zh-cn/docs/v4/doc/reuse-port
[v4_EN_REUSEPORT]: https://ossrs.io/lts/en-us/docs/v4/doc/reuse-port
[v4_CN_Sample]: https://ossrs.net/lts/zh-cn/docs/v4/doc/sample
[v4_EN_Sample]: https://ossrs.io/lts/en-us/docs/v4/doc/sample
[v4_CN_Product]: https://ossrs.net/lts/zh-cn/product
[v4_EN_Product]: https://ossrs.io/lts/en-us/product
[v4_CN_Home]: https://ossrs.net/lts/zh-cn/docs/v4/doc/introduction
[v4_EN_Home]: https://ossrs.io/lts/en-us/docs/v4/doc/introduction
[v4_CN_Build]: https://ossrs.net/lts/zh-cn/docs/v4/doc/install
[v4_EN_Build]: https://ossrs.io/lts/en-us/docs/v4/doc/install
[v4_CN_Performance]: https://ossrs.net/lts/zh-cn/docs/v4/doc/performance
[v4_EN_Performance]: https://ossrs.io/lts/en-us/docs/v4/doc/performance
[v4_CN_DeliveryRTMP]: https://ossrs.net/lts/zh-cn/docs/v4/doc/delivery-rtmp
[v4_EN_DeliveryRTMP]: https://ossrs.io/lts/en-us/docs/v4/doc/delivery-rtmp
[v4_CN_Edge]: https://ossrs.net/lts/zh-cn/docs/v4/doc/edge
[v4_EN_Edge]: https://ossrs.io/lts/en-us/docs/v4/doc/edge
[v4_CN_RtmpUrlVhost]: https://ossrs.net/lts/zh-cn/docs/v4/doc/rtmp-url-vhost
[v4_EN_RtmpUrlVhost]: https://ossrs.io/lts/en-us/docs/v4/doc/rtmp-url-vhost
[v4_CN_RTMPHandshake]: https://ossrs.net/lts/zh-cn/docs/v4/doc/rtmp-handshake
[v4_EN_RTMPHandshake]: https://ossrs.io/lts/en-us/docs/v4/doc/rtmp-handshake
[v4_CN_HTTPServer]: https://ossrs.net/lts/zh-cn/docs/v4/doc/http-server
[v4_EN_HTTPServer]: https://ossrs.io/lts/en-us/docs/v4/doc/http-server
[v4_CN_DeliveryHLS]: https://ossrs.net/lts/zh-cn/docs/v4/doc/delivery-hls
[v4_EN_DeliveryHLS]: https://ossrs.io/lts/en-us/docs/v4/doc/delivery-hls
[v4_CN_DeliveryHLS2]: https://ossrs.net/lts/zh-cn/docs/v4/doc/delivery-hls#hlsaudioonly
[v4_EN_DeliveryHLS2]: https://ossrs.io/lts/en-us/docs/v4/doc/delivery-hls#hlsaudioonly
[v4_CN_Reload]: https://ossrs.net/lts/zh-cn/docs/v4/doc/reload
[v4_EN_Reload]: https://ossrs.io/lts/en-us/docs/v4/doc/reload
[v4_CN_LowLatency2]: https://ossrs.net/lts/zh-cn/docs/v4/doc/low-latency#gop-cache
[v4_EN_LowLatency2]: https://ossrs.io/lts/en-us/docs/v4/doc/low-latency#gop-cache
[v4_CN_Forward]: https://ossrs.net/lts/zh-cn/docs/v4/doc/forward
[v4_EN_Forward]: https://ossrs.io/lts/en-us/docs/v4/doc/forward
[v4_CN_FFMPEG]: https://ossrs.net/lts/zh-cn/docs/v4/doc/ffmpeg
[v4_EN_FFMPEG]: https://ossrs.io/lts/en-us/docs/v4/doc/ffmpeg
[v4_CN_HTTPCallback]: https://ossrs.net/lts/zh-cn/docs/v4/doc/http-callback
[v4_EN_HTTPCallback]: https://ossrs.io/lts/en-us/docs/v4/doc/http-callback
[v4_CN_SampleDemo]: https://ossrs.net/lts/zh-cn/docs/v4/doc/sampleDemo
[v4_EN_SampleDemo]: https://ossrs.io/lts/en-us/docs/v4/doc/sampleDemo
[v4_CN_SrsLinuxArm]: https://ossrs.net/lts/zh-cn/docs/v4/doc/arm
[v4_EN_SrsLinuxArm]: https://ossrs.io/lts/en-us/docs/v4/doc/arm
[v4_CN_LinuxService]: https://ossrs.net/lts/zh-cn/docs/v4/doc/service
[v4_EN_LinuxService]: https://ossrs.io/lts/en-us/docs/v4/doc/service
[v4_CN_RTMP-ATC]: https://ossrs.net/lts/zh-cn/docs/v4/doc/rtmp-atc
[v4_EN_RTMP-ATC]: https://ossrs.io/lts/en-us/docs/v4/doc/rtmp-atc
[v4_CN_HTTPApi]: https://ossrs.net/lts/zh-cn/docs/v4/doc/http-api
[v4_EN_HTTPApi]: https://ossrs.io/lts/en-us/docs/v4/doc/http-api
[v4_CN_Ingest]: https://ossrs.net/lts/zh-cn/docs/v4/doc/ingest
[v4_EN_Ingest]: https://ossrs.io/lts/en-us/docs/v4/doc/ingest
[v4_CN_DVR]: https://ossrs.net/lts/zh-cn/docs/v4/doc/dvr
[v4_EN_DVR]: https://ossrs.io/lts/en-us/docs/v4/doc/dvr
[v4_CN_SrsLog]: https://ossrs.net/lts/zh-cn/docs/v4/doc/log
[v4_EN_SrsLog]: https://ossrs.io/lts/en-us/docs/v4/doc/log
[v4_CN_DRM2]: https://ossrs.net/lts/zh-cn/docs/v4/doc/drm#tokentraverse
[v4_EN_DRM2]: https://ossrs.io/lts/en-us/docs/v4/doc/drm#tokentraverse
[v4_CN_SampleHTTP]: https://ossrs.net/lts/zh-cn/docs/v4/doc/sample-http
[v4_EN_SampleHTTP]: https://ossrs.io/lts/en-us/docs/v4/doc/sample-http
[v4_CN_FlvVodStream]: https://ossrs.net/lts/zh-cn/docs/v4/doc/flv-vod-stream
[v4_EN_FlvVodStream]: https://ossrs.io/lts/en-us/docs/v4/doc/flv-vod-stream
[v4_CN_Security]: https://ossrs.net/lts/zh-cn/docs/v4/doc/security
[v4_EN_Security]: https://ossrs.io/lts/en-us/docs/v4/doc/security
[v4_CN_DeliveryHttpStream]: https://ossrs.net/lts/zh-cn/docs/v4/doc/delivery-http-flv
[v4_EN_DeliveryHttpStream]: https://ossrs.io/lts/en-us/docs/v4/doc/delivery-http-flv
[v4_CN_DeliveryHDS]: https://ossrs.net/lts/zh-cn/docs/v4/doc/delivery-hds
[v4_EN_DeliveryHDS]: https://ossrs.io/lts/en-us/docs/v4/doc/delivery-hds
[v4_CN_Streamer]: https://ossrs.net/lts/zh-cn/docs/v4/doc/streamer
[v4_EN_Streamer]: https://ossrs.io/lts/en-us/docs/v4/doc/streamer
[v4_CN_Streamer2]: https://ossrs.net/lts/zh-cn/docs/v4/doc/streamer#push-http-flv-to-srs
[v4_EN_Streamer2]: https://ossrs.io/lts/en-us/docs/v4/doc/streamer#push-http-flv-to-srs
[v4_CN_SampleHttpFlv]: https://ossrs.net/lts/zh-cn/docs/v4/doc/sample-http-flv
[v4_EN_SampleHttpFlv]: https://ossrs.io/lts/en-us/docs/v4/doc/sample-http-flv
[v4_CN_SampleHttpFlvCluster]: https://ossrs.net/lts/zh-cn/docs/v4/doc/sample-http-flvCluster
[v4_EN_SampleHttpFlvCluster]: https://ossrs.io/lts/en-us/docs/v4/doc/sample-http-flvCluster
[v4_CN_SampleDASH]:https://ossrs.net/lts/zh-cn/docs/v4/doc/sample-dash
[v4_EN_SampleDASH]:https://ossrs.io/lts/en-us/docs/v4/doc/sample-dash
[bug #547]: https://github.com/ossrs/srs/issues/547
[bug #301]: https://github.com/ossrs/srs/issues/301
[bug #459]: https://github.com/ossrs/srs/issues/459
[bug #367]: https://github.com/ossrs/srs/issues/367
[bug #257]: https://github.com/ossrs/srs/issues/257
[bug #904]: https://github.com/ossrs/srs/issues/904
[bug #913]: https://github.com/ossrs/srs/issues/913
[bug #1059]: https://github.com/ossrs/srs/issues/1059
[bug #92]: https://github.com/ossrs/srs/issues/92
[bug #464]: https://github.com/ossrs/srs/issues/464
[bug #460]: https://github.com/ossrs/srs/issues/460
[bug #775]: https://github.com/ossrs/srs/issues/775
[bug #307]: https://github.com/ossrs/srs/issues/307
[bug #2324]: https://github.com/ossrs/srs/issues/2324
[bug #1657]: https://github.com/ossrs/srs/issues/1657
[bug #1500]: https://github.com/ossrs/srs/issues/1500
[bug #738]: https://github.com/ossrs/srs/issues/738
[bug #299]: https://github.com/ossrs/srs/issues/299
[bug #250]: https://github.com/ossrs/srs/issues/250
[bug #459]: https://github.com/ossrs/srs/issues/459
[bug #470]: https://github.com/ossrs/srs/issues/470
[bug #319]: https://github.com/ossrs/srs/issues/319
[bug #1147]: https://github.com/ossrs/srs/issues/1147
[bug #2304]: https://github.com/ossrs/srs/issues/2304
[bug #1535]: https://github.com/ossrs/srs/issues/1535
[bug #1342]: https://github.com/ossrs/srs/issues/1342
[bug #1193]: https://github.com/ossrs/srs/issues/1193
[bug #2093]: https://github.com/ossrs/srs/issues/2093
[bug #465]: https://github.com/ossrs/srs/issues/465
[bug #2091]: https://github.com/ossrs/srs/issues/2091
[bug #2188]: https://github.com/ossrs/srs/issues/2188
[bug #413]: https://github.com/ossrs/srs/issues/413
[bug #1111]: https://github.com/ossrs/srs/issues/1111
[bug #463]: https://github.com/ossrs/srs/issues/463
[bug #775]: https://github.com/ossrs/srs/issues/775
[bug #257-c0]: https://github.com/ossrs/srs/issues/257#issuecomment-66864413
[r3.0r5]: https://github.com/ossrs/srs/releases/tag/v3.0-r5
[r3.0r4]: https://github.com/ossrs/srs/releases/tag/v3.0-r4
[r3.0r3]: https://github.com/ossrs/srs/releases/tag/v3.0-r3
[r3.0r2]: https://github.com/ossrs/srs/releases/tag/v3.0-r2
[r3.0r1]: https://github.com/ossrs/srs/releases/tag/v3.0-r1
[r3.0r0]: https://github.com/ossrs/srs/releases/tag/v3.0-r0
[r3.0b4]: https://github.com/ossrs/srs/releases/tag/v3.0-b4
[r3.0b3]: https://github.com/ossrs/srs/releases/tag/v3.0-b3
[r3.0b2]: https://github.com/ossrs/srs/releases/tag/v3.0-b2
[r3.0b1]: https://github.com/ossrs/srs/releases/tag/v3.0-b1
[r3.0b0]: https://github.com/ossrs/srs/releases/tag/v3.0-b0
[r3.0a9]: https://github.com/ossrs/srs/releases/tag/v3.0-a9
[r3.0a8]: https://github.com/ossrs/srs/releases/tag/v3.0-a8
[r3.0a7]: https://github.com/ossrs/srs/releases/tag/v3.0-a7
[r3.0a6]: https://github.com/ossrs/srs/releases/tag/v3.0-a6
[r3.0a5]: https://github.com/ossrs/srs/releases/tag/v3.0-a5
[r3.0a4]: https://github.com/ossrs/srs/releases/tag/v3.0-a4
[r3.0a3]: https://github.com/ossrs/srs/releases/tag/v3.0-a3
[r3.0a2]: https://github.com/ossrs/srs/releases/tag/v3.0-a2
[r3.0a1]: https://github.com/ossrs/srs/releases/tag/v3.0-a1
[r3.0a0]: https://github.com/ossrs/srs/releases/tag/v3.0-a0
[r2.0r8]: https://github.com/ossrs/srs/releases/tag/v2.0-r8
[r2.0r7]: https://github.com/ossrs/srs/releases/tag/v2.0-r7
[r2.0r6]: https://github.com/ossrs/srs/releases/tag/v2.0-r6
[r2.0r5]: https://github.com/ossrs/srs/releases/tag/v2.0-r5
[r2.0r4]: https://github.com/ossrs/srs/releases/tag/v2.0-r4
[r2.0r3]: https://github.com/ossrs/srs/releases/tag/v2.0-r3
[r2.0r2]: https://github.com/ossrs/srs/releases/tag/v2.0-r2
[r2.0r1]: https://github.com/ossrs/srs/releases/tag/v2.0-r1
[r2.0r0]: https://github.com/ossrs/srs/releases/tag/v2.0-r0
[r2.0b4]: https://github.com/ossrs/srs/releases/tag/v2.0-b4
[r2.0b3]: https://github.com/ossrs/srs/releases/tag/v2.0-b3
[r2.0b2]: https://github.com/ossrs/srs/releases/tag/v2.0-b2
[r2.0b1]: https://github.com/ossrs/srs/releases/tag/v2.0-b1
[r2.0b0]: https://github.com/ossrs/srs/releases/tag/v2.0-b0
[r2.0a3]: https://github.com/ossrs/srs/releases/tag/v2.0-a3
[r2.0a2]: https://github.com/ossrs/srs/releases/tag/v2.0-a2
[r2.0a1]: https://github.com/ossrs/srs/releases/tag/v2.0-a1
[r2.0a0]: https://github.com/ossrs/srs/releases/tag/v2.0-a0
[r1.0r4]: https://github.com/ossrs/srs/releases/tag/v1.0-r4
[r1.0r3]: https://github.com/ossrs/srs/releases/tag/v1.0-r3
[r1.0r2]: https://github.com/ossrs/srs/releases/tag/v1.0-r2
[r1.0r1]: https://github.com/ossrs/srs/releases/tag/v1.0-r1
[r1.0r0]: https://github.com/ossrs/srs/releases/tag/v1.0-r0
[r1.0b0]: https://github.com/ossrs/srs/releases/tag/v0.9.8
[r1.0a7]: https://github.com/ossrs/srs/releases/tag/v0.9.7
[r1.0a6]: https://github.com/ossrs/srs/releases/tag/v0.9.6
[r1.0a5]: https://github.com/ossrs/srs/releases/tag/v0.9.5
[r1.0a4]: https://github.com/ossrs/srs/releases/tag/v0.9.4
[r1.0a3]: https://github.com/ossrs/srs/releases/tag/v0.9.3
[r1.0a2]: https://github.com/ossrs/srs/releases/tag/v0.9.2
[r1.0a0]: https://github.com/ossrs/srs/releases/tag/v0.9.1
[r0.9]: https://github.com/ossrs/srs/releases/tag/v0.9.0
[r0.8]: https://github.com/ossrs/srs/releases/tag/v0.8.0
[r0.7]: https://github.com/ossrs/srs/releases/tag/v0.7.0
[r0.6]: https://github.com/ossrs/srs/releases/tag/v0.6.0
[r0.5]: https://github.com/ossrs/srs/releases/tag/v0.5.0
[r0.4]: https://github.com/ossrs/srs/releases/tag/v0.4.0
[r0.3]: https://github.com/ossrs/srs/releases/tag/v0.3.0
[r0.2]: https://github.com/ossrs/srs/releases/tag/v0.2.0
[r0.1]: https://github.com/ossrs/srs/releases/tag/v0.1.0
[LICENSE]: https://github.com/ossrs/srs/blob/4.0release/LICENSE
[LicenseMixing]: https://ossrs.net/lts/zh-cn/license
[release2]: https://ossrs.net/lts/zh-cn/product#release20
[release3]: https://ossrs.net/lts/zh-cn/product#release30
[release4]: https://ossrs.net/lts/zh-cn/product#release40
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