# SRS(Simple Realtime Server)
[](https://circleci.com/gh/ossrs/srs/tree/4.0release)
[](https://codecov.io/gh/ossrs/srs/branch/4.0release)
[](../../wikis/Contact#wechat)
[](http://bbs.ossrs.net)
SRS/4.0， ， ，
SRS is a simple, high efficiency and realtime video server, supports RTMP/WebRTC/HLS/HTTP-FLV/SRT.
SRS is licenced under [MIT][LICENSE], but some depended libraries are distributed using their [own licenses][LicenseMixing].
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## Usage
Run SRS by [docker][docker-srs4], images is [here ](https://hub.docker.com/r/ossrs/srs/tags ) or [there ](https://cr.console.aliyun.com/repository/cn-hangzhou/ossrs/srs/images ),
please set the CANDIDATE ([CN][v4_CN_WebRTC#config-candidate],[EN][v4_EN_WebRTC#config-candidate]) if WebRTC enabled:
```bash
docker run --rm -it -p 1935:1935 -p 1985:1985 -p 8080:8080 \
--env CANDIDATE=$(ifconfig en0 inet| grep 'inet '|awk '{print $2}') -p 8000:8000/udp \
ossrs/srs:v4.0.117 ./objs/srs -c conf/srs.conf
```
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Or build SRS from source(or [mirrors ](#mirrors )), by CentOS7(or Linux([CN][v4_CN_Build],[EN][v4_EN_Build])):
```
git clone -b 4.0release https://gitee.com/ossrs/srs.git & &
cd srs/trunk & & ./configure & & make & & ./objs/srs -c conf/srs.conf
```
Open [http://localhost:8080/ ](http://localhost:8080/ ) to check it, then publish
[stream ](https://github.com/ossrs/srs/blob/3.0release/trunk/doc/source.flv ) by FFmpeg.
It's also able to [publish by H5 ](http://localhost:8080/players/rtc_publisher.html?autostart=true ) if WebRTC is enabled:
```bash
docker run --rm -it --network=host ossrs/srs:encoder \
ffmpeg -re -i ./doc/source.flv -c copy -f flv -y rtmp://localhost/live/livestream
```
Play the following streams by [players ](https://ossrs.net ):
* RTMP (by [VLC ](https://www.videolan.org/ )): rtmp://localhost/live/livestream
* H5(HTTP-FLV): [http://localhost:8080/live/livestream.flv ](http://localhost:8080/players/srs_player.html?autostart=true&stream=livestream.flv&port=8080&schema=http )
* H5(HLS): [http://localhost:8080/live/livestream.m3u8 ](http://localhost:8080/players/srs_player.html?autostart=true&stream=livestream.m3u8&port=8080&schema=http )
* H5(WebRTC): [webrtc://localhost/live/livestream ](http://localhost:8080/players/rtc_player.html?autostart=true )
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From here, please read wikis:
* [SRS 4.0 English Wiki][v4_EN_Home], please read Wiki first.
* [SRS 4.0 中文Wiki][v4_CN_Home]， ， ， ，
* [学习路径 ](https://mp.weixin.qq.com/s/ngZX1wBSRJ8aYX-ZNTGxIg )， ，
Fast index for Wikis:
* How to deliver RTMP streaming?([CN][v4_CN_SampleRTMP], [EN][v4_EN_SampleRTMP])
* How to build RTMP Edge-Cluster?([CN][v4_CN_SampleRTMPCluster], [EN][v4_EN_SampleRTMPCluster])
* How to build RTMP Origin-Cluster?([CN][v4_CN_SampleOriginCluster], [EN][v4_EN_SampleOriginCluster])
* How to deliver HTTP-FLV streaming?([CN][v4_CN_SampleHttpFlv], [EN][v4_EN_SampleHttpFlv])
* How to deliver HLS streaming?([CN][v4_CN_SampleHLS], [EN][v4_EN_SampleHLS])
* How to deliver low-latency streaming?([CN][v4_CN_SampleRealtime], [EN][v4_EN_SampleRealtime])
* How to use WebRTC? ([CN][v4_CN_WebRTC], [EN][v4_EN_WebRTC])
Other important wiki:
* Usage: How to delivery DASH(Experimental)?([CN][v4_CN_SampleDASH], [EN][v4_EN_SampleDASH])
* Usage: How to transode RTMP stream by FFMPEG?([CN][v4_CN_SampleFFMPEG], [EN][v4_EN_SampleFFMPEG])
* Usage: How to delivery HTTP FLV Live Streaming Cluster?([CN][v4_CN_SampleHttpFlvCluster], [EN][v4_EN_SampleHttpFlvCluster])
* Usage: How to ingest file/stream/device to RTMP?([CN][v4_CN_SampleIngest], [EN][v4_EN_SampleIngest])
* Usage: How to forward stream to other servers?([CN][v4_CN_SampleForward], [EN][v4_EN_SampleForward])
* Usage: How to improve edge performance for multiple CPUs? ([CN][v4_CN_REUSEPORT], [EN][v4_EN_REUSEPORT])
* Usage: How to file a bug or contact us? ([CN][v4_CN_Contact], [EN][v4_EN_Contact])
## AUTHORS
There are two types of people that have contributed to the SRS project:
* Maintainers: Contribute and maintain important features. SRS always remembers and thanks you by writing your names in stream metadata.
* [Contributors][authors]: Submit patches, report bugs, add translations, help answer newbie questions, and generally make SRS much better.
Maintainers of SRS project:
* [Winlin ](https://github.com/winlinvip ): All areas of streaming server and documents.
* [Wenjie ](https://github.com/wenjiegit ): The focus of his work is on the [HDS ](https://github.com/simple-rtmp-server/srs/wiki/v4_CN_DeliveryHDS ) module.
* [Runner365 ](https://github.com/runner365 ): The focus of his work is on the [SRT ](https://github.com/simple-rtmp-server/srs/wiki/v4_CN_SRTWiki ) module.
* [John ](https://github.com/xiaozhihong ): Focus on [WebRTC ](https://github.com/simple-rtmp-server/srs/wiki/v4_CN_WebRTC ) module.
* [B.P.Y(Bepartofyou) ](https://github.com/Bepartofyou ): Focus on [WebRTC ](https://github.com/simple-rtmp-server/srs/wiki/v4_CN_WebRTC ) module.
* [Lixin ](https://github.com/xialixin ): Focus on [GB28181 ](https://github.com/ossrs/srs/issues/1500 ) module.
* [Mozhan ](https://github.com/lipeng19811218 ): Focus on [WebRTC ](https://github.com/simple-rtmp-server/srs/wiki/v4_CN_WebRTC ) module.
* [Jinxue ](https://github.com/chen-guanghua ): Focus on [WebRTC ](https://github.com/simple-rtmp-server/srs/wiki/v4_CN_WebRTC ) module.
A big THANK YOU goes to:
* All friends of SRS for [big supports][bigthanks].
* Genes amd Mabbott for creating [st][st]([state-threads][st2]).
* [Michael Talyanksy ](https://github.com/michaeltalyansky ) for introducing ST to us.
## Ports
The ports used by SRS, kernel services:
* `tcp://1935` , for RTMP live streaming server([CN][v4_CN_DeliveryRTMP],[EN][v4_EN_DeliveryRTMP]).
* `tcp://1985` , HTTP API server, for HTTP-API([CN][v4_CN_HTTPApi], [EN][v4_EN_HTTPApi]), WebRTC([CN][v4_CN_WebRTC], [EN][v4_EN_WebRTC]), etc.
* `tcp://8080` , HTTP live streaming server, HTTP-FLV([CN][v4_CN_SampleHttpFlv], [EN][v4_EN_SampleHttpFlv]), HLS([CN][v4_CN_SampleHLS], [EN][v4_EN_SampleHLS]) as such.
* `udp://8000` , WebRTC Media([CN][v4_CN_WebRTC], [EN][v4_EN_WebRTC]) server.
For optional HTTPS services, which might be provided by other web servers:
* `tcp://8088` , HTTPS live streaming server.
* `tcp://1990` , HTTPS API server.
For optional stream caster services, to push streams to SRS:
* `udp://8935` , Stream Caster: [Push MPEGTS over UDP ](https://github.com/ossrs/srs/wiki/v4_CN_Streamer#push-mpeg-ts-over-udp ) server.
* `tcp://554` , Stream Caster: [Push RTSP ](https://github.com/ossrs/srs/wiki/v4_CN_Streamer#push-rtsp-to-srs ) server.
* `tcp://8936` , Stream Caster: [Push HTTP-FLV ](https://github.com/ossrs/srs/wiki/v4_CN_Streamer#push-http-flv-to-srs ) server.
* `udp://10080` , Stream Caster: [Push SRT Media ](https://github.com/ossrs/srs/issues/1147#issuecomment-577469119 ) server.
For external services to work with SRS:
* `udp://1989` , [WebRTC Signaling ](https://github.com/ossrs/signaling#usage ) server.
## APIs
The API used by SRS:
* `/api/v1/` The HTTP API path.
* `/rtc/v1/` The HTTP API path for RTC.
* `/sig/v1/` The [demo signaling ](https://github.com/ossrs/signaling ) API.
Other API used by [ossrs.net ](https://ossrs.net ):
* `/gif/v1` The statistic API.
* `/service/v1/` The latest available version API.
* `/ws-service/v1/` The latest available version API, by websocket.
## Features
- [x] Using coroutine by ST, it's really simple and stupid enough.
- [x] Support cluster which consists of origin ([CN][v4_CN_DeliveryRTMP],[EN][v4_EN_DeliveryRTMP]) and edge([CN][v4_CN_Edge], [EN][v4_EN_Edge]) server and uses RTMP as default transport protocol.
- [x] Origin server supports remuxing RTMP to HTTP-FLV([CN][v4_CN_SampleHttpFlv], [EN][v4_EN_SampleHttpFlv]) and HLS([CN][v4_CN_DeliveryHLS], [EN][v4_EN_DeliveryHLS]).
- [x] Edge server supports remuxing RTMP to HTTP-FLV([CN][v4_CN_SampleHttpFlv], [EN][v4_EN_SampleHttpFlv]). As for HLS([CN][v4_CN_DeliveryHLS], [EN][v4_EN_DeliveryHLS]) edge server, recomment to use HTTP edge server, such as [NGINX ](http://nginx.org/ ).
- [x] Support HLS with audio-only([CN][v4_CN_DeliveryHLS2], [EN][v4_EN_DeliveryHLS2]), which need to build the timestamp from AAC samples, so we enhanced it please read [#547][bug #547 ].
- [x] Support HLS with mp3(h.264+mp3) audio codec, please read [bug #301 ][bug #301 ].
- [x] Support transmux RTMP to HTTP-FLV/MP3/AAC/TS, please read wiki([CN][v4_CN_DeliveryHttpStream], [EN][v4_CN_DeliveryHttpStream]).
- [x] Support ingesting([CN][v4_CN_Ingest], [EN][v4_EN_Ingest]) other protocols to SRS by FFMPEG.
- [x] Support RTMP long time(>4.6hours) publishing/playing, with the timestamp corrected.
- [x] Support native HTTP server([CN][v4_CN_SampleHTTP], [EN][v4_EN_SampleHTTP]) for http api and http live streaming.
- [x] Support HTTP CORS for js in http api and http live streaming.
- [x] Support HTTP API([CN][v4_CN_HTTPApi], [EN][v4_EN_HTTPApi]) for system management.
- [x] Support HTTP callback([CN][v4_CN_HTTPCallback], [EN][v4_EN_HTTPCallback]) for authentication and integration.
- [x] Support DVR([CN][v4_CN_DVR], [EN][v4_EN_DVR]) to record live streaming to FLV file.
- [x] Support DVR control module like NGINX-RTMP, please read [#459][bug #459 ].
- [x] Support EXEC like NGINX-RTMP, please read [bug #367 ][bug #367 ].
- [x] Support security strategy including allow/deny publish/play IP([CN][v4_CN_Security], [EN][v4_EN_Security]).
- [x] Support low latency(0.1s+) transport model, please read [bug #257 ][bug #257 ].
- [x] Support gop-cache([CN][v4_CN_LowLatency2], [EN][v4_EN_LowLatency2]) for player fast startup.
- [x] Support Vhost([CN][v4_CN_RtmpUrlVhost], [EN][v4_EN_RtmpUrlVhost]) and \_\_defaultVhost\_\_.
- [x] Support reloading([CN][v4_CN_Reload], [EN][v4_EN_Reload]) to apply changes of config.
- [x] Support listening at multiple ports.
- [x] Support forwarding([CN][v4_CN_Forward], [EN][v4_EN_Forward]) to other RTMP servers.
- [x] Support transcoding([CN][v4_CN_FFMPEG], [EN][v4_EN_FFMPEG]) by FFMPEG.
- [x] All wikis are writen in [Chinese][v4_CN_Home] and [English][v4_EN_Home].
- [x] Enhanced json, replace NXJSON(LGPL) with json-parser(BSD), read [#904][bug #904 ].
- [x] Support valgrind and latest ARM by patching ST, read [ST#1 ](https://github.com/ossrs/state-threads/issues/1 ) and [ST#2 ](https://github.com/ossrs/state-threads/issues/2 ).
- [x] Support traceable and session-based log([CN][v4_CN_SrsLog], [EN][v4_EN_SrsLog]).
- [x] High performance([CN][v4_CN_Performance], [EN][v4_EN_Performance]) RTMP/HTTP-FLV, 6000+ connections.
- [x] Enhanced complex error code with description and stack, read [#913][bug #913 ].
- [x] Enhanced RTMP url which supports vhost in stream, read [#1059][bug #1059 ].
- [x] Support origin cluster, please read [#464][bug #464 ], [RTMP 302][bug #92 ].
- [x] Support listen at IPv4 and IPv6, read [#460][bug #460 ].
- [x] Improve test coverage for core/kernel/protocol/service.
- [x] Support docker by [srs-docker ](https://github.com/ossrs/srs-docker ).
- [x] Support multiple processes by ReusePort([CN][v4_CN_REUSEPORT], [EN][v4_EN_REUSEPORT]), [#775][bug #775 ].
- [x] Support a simple [mgmt console][console], please read [srs-console][srs-ngb].
- [x] [Experimental] Support playing stream by WebRTC, [#307][bug #307 ].
- [x] [Experimental] Support publishing stream by WebRTC, [#307][bug #307 ].
- [x] [Experimental] Support mux RTP/RTCP/DTLS/SRTP on one port for WebRTC, [#307][bug #307 ].
- [x] [Experimental] Support client address changing for WebRTC, [#307][bug #307 ].
- [x] [Experimental] Support transcode RTMP/AAC to WebRTC/Opus, [#307][bug #307 ].
- [x] [Experimental] Support AV1 codec for WebRTC, [#2324][bug #2324 ].
- [x] [Experimental] Enhance HTTP Stream Server for HTTP-FLV, HTTPS, HLS etc. [#1657][bug #1657 ].
- [ ] Support push stream by GB28181, [#1500][bug #1500 ].
- [x] [Experimental] Support DVR in MP4 format, read [#738][bug #738 ].
- [x] [Experimental] Support MPEG-DASH, the future live streaming protocol, read [#299][bug #299 ].
- [x] [Experimental] Support pushing MPEG-TS over UDP, please read [bug #250 ][bug #250 ].
- [x] [Experimental] Support pushing FLV over HTTP POST, please read wiki([CN][v4_CN_Streamer2], [EN][v4_EN_Streamer2]).
- [x] [Experimental] Support HTTP RAW API, please read [#459][bug #459 ], [#470][bug #470 ], [#319][bug #319 ].
- [x] [Experimental] Support SRT server, read [#1147][bug #1147 ].
- [x] [Experimental] Support transmux RTC to RTMP, [#2093][bug #2093 ].
- [x] [Deprecated] Support pushing RTSP, please read [bug #2304 ][bug #2304 ].
- [x] [Deprecated] Support Adobe HDS(f4m), please read wiki([CN][v4_CN_DeliveryHDS], [EN][v4_EN_DeliveryHDS]) and [#1535][bug #1535 ].
- [x] [Deprecated] Support bandwidth testing, please read [#1535][bug #1535 ].
- [x] [Deprecated] Support Adobe FMS/AMS token traverse([CN][v4_CN_DRM2], [EN][v4_EN_DRM2]) authentication, please read [#1535][bug #1535 ].
- [x] [Removed] Support RTMP client library: [srs-librtmp][srs-librtmp].
- [ ] Support IETF-QUIC for WebRTC Cluster, [#2091][bug #2091 ].
- [ ] Enhanced forwarding with vhost and variables, [#1342][bug #1342 ].
- [ ] Support DVR to Cloud Storage, [#1193][bug #1193 ].
- [ ] Support H.265 over RTMP and HLS, [#465][bug #465 ].
- [ ] Improve RTC performance to 5K by multiple threading, [#2188][bug #2188 ].
- [ ] Support source cleanup for idle streams, [#413][bug #413 ].
- [ ] Support change user to run SRS, [#1111][bug #1111 ].
- [ ] Support HLS variant, [#463][bug #463 ].
> Remark: About the milestone and product plan, please read ([CN][v4_CN_Product], [EN][v4_EN_Product]) wiki.
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## Changelog
Please read [CHANGELOG ](CHANGELOG.md#changelog ).
## Releases
* 2021-06-26, [Release v3.0-r6 ](https://github.com/ossrs/srs/releases/tag/v3.0-r6 ), 3.0 release6, 3.0.163, 123011 lines.
* 2021-04-28, [Release v3.0-r5][r3.0r5], 3.0 release5, 3.0.161, 122750 lines.
* 2021-04-24, [Release v3.0-r4][r3.0r4], 3.0 release4, 3.0.160, 122750 lines.
* 2021-01-02, [Release v3.0-r3][r3.0r3], 3.0 release3, 3.0.156, 122736 lines.
* 2020-10-31, [Release v3.0-r2][r3.0r2], 3.0 release2, 3.0.153, 122663 lines.
* 2020-10-10, [Release v3.0-r1][r3.0r1], 3.0 release1, 3.0.144, 122674 lines.
* 2020-06-27, [Release v3.0-r0][r3.0r0], 3.0 release0, 3.0.141, 122674 lines.
* 2020-03-29, [Release v3.0-b3][r3.0b4], 3.0 beta4, 3.0.139, 122674 lines.
* 2020-03-18, [Release v3.0-b3][r3.0b3], 3.0 beta3, 3.0.134, 122509 lines.
* 2020-03-05, [Release v3.0-b2][r3.0b2], 3.0 beta2, 3.0.123, 122170 lines.
* 2020-02-14, [Release v3.0-b1][r3.0b1], 3.0 beta1, 3.0.117, 121964 lines.
* 2020-02-02, [Release v3.0-b0][r3.0b0], 3.0 beta0, 3.0.112, 121709 lines.
* 2020-01-21, [Release v3.0-a9][r3.0a9], 3.0 alpha9, 3.0.105, 121577 lines.
* 2020-01-10, [Release v3.0-a8][r3.0a8], 3.0 alpha8, 3.0.97, 121555 lines.
* 2019-12-29, [Release v3.0-a7][r3.0a7], 3.0 alpha7, 3.0.90, 116356 lines.
* 2019-12-26, [Release v3.0-a6][r3.0a6], 3.0 alpha6, 3.0.85, 116056 lines.
* 2019-12-19, [Release v3.0-a5][r3.0a5], 3.0 alpha5, 3.0.75, 115362 lines.
* 2019-12-13, [Release v3.0-a4][r3.0a4], 3.0 alpha4, 3.0.71, 112928 lines.
* 2019-11-30, [Release v3.0-a3][r3.0a3], 3.0 alpha3, 3.0.67, 110864 lines.
* 2019-11-30, [Release v3.0-a2][r3.0a2], 3.0 alpha2, 3.0.66, 110831 lines.
* 2019-10-07, [Release v3.0-a1][r3.0a1], 3.0 alpha1, 3.0.60, 107962 lines.
* 2019-10-04, [Release v3.0-a0][r3.0a0], 3.0 alpha0, 3.0.56, 107946 lines.
* 2017-03-03, [Release v2.0-r0][r2.0r0], 2.0 release0, 2.0.234, 86373 lines.
* 2016-11-13, [Release v2.0-b3][r2.0b3], 2.0 beta3, 2.0.223, 86685 lines.
* 2016-11-09, [Release v2.0-b2][r2.0b2], 2.0 beta2, 2.0.221, 86691 lines.
* 2016-09-09, [Release v2.0-b1][r2.0b1], 2.0 beta1, 2.0.215, 89941 lines.
* 2016-08-06, [Release v2.0-b0][r2.0b0], 2.0 beta0, 2.0.210, 89704 lines.
* 2015-12-23, [Release v2.0-a3][r2.0a3], 2.0 alpha3, 2.0.205, 89544 lines.
* 2015-10-08, [Release v2.0-a2][r2.0a2], 2.0 alpha2, 2.0.195, 89358 lines.
* 2015-09-14, [Release v2.0-a1][r2.0a1], 2.0 alpha1, 2.0.189, 89269 lines.
* 2015-08-23, [Release v2.0-a0][r2.0a0], 2.0 alpha0, 2.0.185, 89022 lines.
* 2015-05-23, [Release v1.0-r4][r1.0r4], bug fixed, 1.0.32, 59509 lines.
* 2015-03-19, [Release v1.0-r3][r1.0r3], bug fixed, 1.0.30, 59511 lines.
* 2015-02-12, [Release v1.0-r2][r1.0r2], bug fixed, 1.0.27, 59507 lines.
* 2015-01-15, [Release v1.0-r1][r1.0r1], bug fixed, 1.0.21, 59472 lines.
* 2014-12-05, [Release v1.0-r0][r1.0r0], all bug fixed, 1.0.10, 59391 lines.
* 2014-10-09, [Release v0.9.8][r1.0b0], all bug fixed, 1.0.0, 59316 lines.
* 2014-08-03, [Release v0.9.7][r1.0a7], config utest, all bug fixed. 57432 lines.
* 2014-07-13, [Release v0.9.6][r1.0a6], core/kernel/rtmp utest, refine bandwidth(as/js/srslibrtmp library). 50029 lines.
* 2014-06-27, [Release v0.9.5][r1.0a5], refine perf 3k+ clients, edge token traverse, 30days online. 41573 lines.
* 2014-05-28, [Release v0.9.4][r1.0a4], support heartbeat, tracable log, fix mem leak and bugs. 39200 lines.
* 2014-05-18, [Release v0.9.3][r1.0a3], support mips, fms origin, json(http-api). 37594 lines.
* 2014-04-28, [Release v0.9.2][r1.0a2], support [dvr][v4_CN_DVR], android, [edge][v4_CN_Edge]. 35255 lines.
* 2014-04-07, [Release v0.9.1][r1.0a0], support [arm][v4_CN_SrsLinuxArm], [init.d][v4_CN_LinuxService], http [server][v4_CN_HTTPServer]/[api][v4_CN_HTTPApi], [ingest][v4_CN_SampleIngest]. 30000 lines.
* 2013-12-25, [Release v0.9.0][r0.9], support bandwidth test, player/encoder/chat [demos][v4_CN_SampleDemo]. 20926 lines.
* 2013-12-08, [Release v0.8.0][r0.8], support [http hooks callback][v4_CN_HTTPCallback], update [SB][srs-bench]. 19186 lines.
* 2013-12-03, [Release v0.7.0][r0.7], support [live stream transcoding][v4_CN_FFMPEG]. 17605 lines.
* 2013-11-29, [Release v0.6.0][r0.6], support [forward][v4_CN_Forward] stream to origin/edge. 16094 lines.
* 2013-11-26, [Release v0.5.0][r0.5], support [HLS(m3u8)][v4_CN_DeliveryHLS], fragment and window. 14449 lines.
* 2013-11-10, [Release v0.4.0][r0.4], support [reload][v4_CN_Reload] config, pause, longtime publish/play. 12500 lines.
* 2013-11-04, [Release v0.3.0][r0.3], support [vhost][v4_CN_RtmpUrlVhost], refer, gop cache, listen multiple ports. 11773 lines.
* 2013-10-25, [Release v0.2.0][r0.2], support [rtmp][v4_CN_RTMPHandshake] flash publish, h264, time jitter correct. 10125 lines.
* 2013-10-23, [Release v0.1.0][r0.1], support [rtmp FMLE/FFMPEG publish][v4_CN_DeliveryRTMP], vp6. 8287 lines.
* 2013-10-17, Created.
## Compare
Comparing with other media servers, SRS is much better and stronger, for details please
read Product([CN][v4_CN_Compare]/[EN][v4_EN_Compare]).
## Performance
Please read [PERFORMANCE ](Performance.md#performance ).
## 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.
## Mirrors
Gitee: [https://gitee.com/ossrs/srs][gitee], the GIT usage([CN][v4_CN_Git], [EN][v4_EN_Git])
```
git clone https://gitee.com/ossrs/srs.git & &
cd srs & & git remote set-url origin https://github.com/ossrs/srs.git & & git pull
```
> Remark: For users in China, recomment to use mirror from CSDN or OSChina, because they are much faster.
Gitlab: [https://gitlab.com/winlinvip/srs-gitlab][gitlab], the GIT usage([CN][v4_CN_Git], [EN][v4_EN_Git])
```
git clone https://gitlab.com/winlinvip/srs-gitlab.git srs & &
cd srs & & git remote set-url origin https://github.com/ossrs/srs.git & & git pull
```
Github: [https://github.com/ossrs/srs][srs], the GIT usage([CN][v4_CN_Git], [EN][v4_EN_Git])
```
git clone https://github.com/ossrs/srs.git
```
| Branch | Cost | Size | CMD |
| --- | --- | --- | --- |
| 3.0release | 2m19.931s | 262MB | git clone -b 3.0release https://gitee.com/ossrs/srs.git |
| 3.0release | 0m56.515s | 95MB | git clone -b 3.0release --depth=1 https://gitee.com/ossrs/srs.git |
| develop | 2m22.430s | 234MB | git clone -b develop https://gitee.com/ossrs/srs.git |
| develop | 0m46.421s | 42MB | git clone -b develop --depth=1 https://gitee.com/ossrs/srs.git |
| min | 2m22.865s | 217MB | git clone -b min https://gitee.com/ossrs/srs.git |
| min | 0m36.472s | 11MB | git clone -b min --depth=1 https://gitee.com/ossrs/srs.git |
## 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].
Beijing, 2013.10< br / >
Winlin
[authors]: https://github.com/ossrs/srs/blob/4.0release/trunk/AUTHORS.txt
[bigthanks]: https://github.com/ossrs/srs/wiki/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://github.com/ossrs/srs/wiki/v4_CN_Git
[v4_EN_Git]: https://github.com/ossrs/srs/wiki/v4_EN_Git
[v4_CN_SampleRTMP]: https://github.com/ossrs/srs/wiki/v4_CN_SampleRTMP
[v4_EN_SampleRTMP]: https://github.com/ossrs/srs/wiki/v4_EN_SampleRTMP
[v4_CN_SampleRTMPCluster]: https://github.com/ossrs/srs/wiki/v4_CN_SampleRTMPCluster
[v4_EN_SampleRTMPCluster]: https://github.com/ossrs/srs/wiki/v4_EN_SampleRTMPCluster
[v4_CN_SampleOriginCluster]: https://github.com/ossrs/srs/wiki/v4_CN_SampleOriginCluster
[v4_EN_SampleOriginCluster]: https://github.com/ossrs/srs/wiki/v4_EN_SampleOriginCluster
[v4_CN_SampleHLS]: https://github.com/ossrs/srs/wiki/v4_CN_SampleHLS
[v4_EN_SampleHLS]: https://github.com/ossrs/srs/wiki/v4_EN_SampleHLS
[v4_CN_SampleTranscode2HLS]: https://github.com/ossrs/srs/wiki/v4_CN_SampleTranscode2HLS
[v4_EN_SampleTranscode2HLS]: https://github.com/ossrs/srs/wiki/v4_EN_SampleTranscode2HLS
[v4_CN_SampleFFMPEG]: https://github.com/ossrs/srs/wiki/v4_CN_SampleFFMPEG
[v4_EN_SampleFFMPEG]: https://github.com/ossrs/srs/wiki/v4_EN_SampleFFMPEG
[v4_CN_SampleForward]: https://github.com/ossrs/srs/wiki/v4_CN_SampleForward
[v4_EN_SampleForward]: https://github.com/ossrs/srs/wiki/v4_EN_SampleForward
[v4_CN_SampleRealtime]: https://github.com/ossrs/srs/wiki/v4_CN_SampleRealtime
[v4_EN_SampleRealtime]: https://github.com/ossrs/srs/wiki/v4_EN_SampleRealtime
[v4_CN_WebRTC]: https://github.com/ossrs/srs/wiki/v4_CN_WebRTC
[v4_EN_WebRTC]: https://github.com/ossrs/srs/wiki/v4_EN_WebRTC
[v4_CN_WebRTC#config-candidate]: https://github.com/ossrs/srs/wiki/v4_CN_WebRTC#config-candidate
[v4_EN_WebRTC#config-candidate]: https://github.com/ossrs/srs/wiki/v4_EN_WebRTC#config-candidate
[v4_CN_SampleARM]: https://github.com/ossrs/srs/wiki/v4_CN_SampleARM
[v4_EN_SampleARM]: https://github.com/ossrs/srs/wiki/v4_EN_SampleARM
[v4_CN_SampleIngest]: https://github.com/ossrs/srs/wiki/v4_CN_SampleIngest
[v4_EN_SampleIngest]: https://github.com/ossrs/srs/wiki/v4_EN_SampleIngest
[v4_CN_SampleHTTP]: https://github.com/ossrs/srs/wiki/v4_CN_SampleHTTP
[v4_EN_SampleHTTP]: https://github.com/ossrs/srs/wiki/v4_EN_SampleHTTP
[v4_CN_SampleDemo]: https://github.com/ossrs/srs/wiki/v4_CN_SampleDemo
[v4_EN_SampleDemo]: https://github.com/ossrs/srs/wiki/v4_EN_SampleDemo
[v4_CN_OriginCluster]: https://github.com/ossrs/srs/wiki/v4_CN_OriginCluster
[v4_EN_OriginCluster]: https://github.com/ossrs/srs/wiki/v4_EN_OriginCluster
[v4_CN_REUSEPORT]: https://github.com/ossrs/srs/wiki/v4_CN_REUSEPORT
[v4_EN_REUSEPORT]: https://github.com/ossrs/srs/wiki/v4_EN_REUSEPORT
[v4_CN_Sample]: https://github.com/ossrs/srs/wiki/v4_CN_Sample
[v4_EN_Sample]: https://github.com/ossrs/srs/wiki/v4_EN_Sample
[v4_CN_Product]: https://github.com/ossrs/srs/wiki/v4_CN_Product
[v4_EN_Product]: https://github.com/ossrs/srs/wiki/v4_EN_Product
[v4_CN_Home]: https://github.com/ossrs/srs/wiki/v4_CN_Home
[v4_EN_Home]: https://github.com/ossrs/srs/wiki/v4_EN_Home
[v4_CN_Compare]: https://github.com/ossrs/srs/wiki/v4_CN_Compare
[v4_EN_Compare]: https://github.com/ossrs/srs/wiki/v4_EN_Compare
[v4_CN_Build]: https://github.com/ossrs/srs/wiki/v4_CN_Build
[v4_EN_Build]: https://github.com/ossrs/srs/wiki/v4_EN_Build
[v4_CN_Performance]: https://github.com/ossrs/srs/wiki/v4_CN_Performance
[v4_EN_Performance]: https://github.com/ossrs/srs/wiki/v4_EN_Performance
[v4_CN_DeliveryRTMP]: https://github.com/ossrs/srs/wiki/v4_CN_DeliveryRTMP
[v4_EN_DeliveryRTMP]: https://github.com/ossrs/srs/wiki/v4_EN_DeliveryRTMP
[v4_CN_Edge]: https://github.com/ossrs/srs/wiki/v4_CN_Edge
[v4_EN_Edge]: https://github.com/ossrs/srs/wiki/v4_EN_Edge
[v4_CN_RtmpUrlVhost]: https://github.com/ossrs/srs/wiki/v4_CN_RtmpUrlVhost
[v4_EN_RtmpUrlVhost]: https://github.com/ossrs/srs/wiki/v4_EN_RtmpUrlVhost
[v4_CN_RTMPHandshake]: https://github.com/ossrs/srs/wiki/v4_CN_RTMPHandshake
[v4_EN_RTMPHandshake]: https://github.com/ossrs/srs/wiki/v4_EN_RTMPHandshake
[v4_CN_HTTPServer]: https://github.com/ossrs/srs/wiki/v4_CN_HTTPServer
[v4_EN_HTTPServer]: https://github.com/ossrs/srs/wiki/v4_EN_HTTPServer
[v4_CN_DeliveryHLS]: https://github.com/ossrs/srs/wiki/v4_CN_DeliveryHLS
[v4_EN_DeliveryHLS]: https://github.com/ossrs/srs/wiki/v4_EN_DeliveryHLS
[v4_CN_DeliveryHLS2]: https://github.com/ossrs/srs/wiki/v4_CN_DeliveryHLS#hlsaudioonly
[v4_EN_DeliveryHLS2]: https://github.com/ossrs/srs/wiki/v4_EN_DeliveryHLS#hlsaudioonly
[v4_CN_Reload]: https://github.com/ossrs/srs/wiki/v4_CN_Reload
[v4_EN_Reload]: https://github.com/ossrs/srs/wiki/v4_EN_Reload
[v4_CN_LowLatency2]: https://github.com/ossrs/srs/wiki/v4_CN_LowLatency#gop-cache
[v4_EN_LowLatency2]: https://github.com/ossrs/srs/wiki/v4_EN_LowLatency#gop-cache
[v4_CN_Forward]: https://github.com/ossrs/srs/wiki/v4_CN_Forward
[v4_EN_Forward]: https://github.com/ossrs/srs/wiki/v4_EN_Forward
[v4_CN_FFMPEG]: https://github.com/ossrs/srs/wiki/v4_CN_FFMPEG
[v4_EN_FFMPEG]: https://github.com/ossrs/srs/wiki/v4_EN_FFMPEG
[v4_CN_HTTPCallback]: https://github.com/ossrs/srs/wiki/v4_CN_HTTPCallback
[v4_EN_HTTPCallback]: https://github.com/ossrs/srs/wiki/v4_EN_HTTPCallback
[v4_CN_SampleDemo]: https://github.com/ossrs/srs/wiki/v4_CN_SampleDemo
[v4_EN_SampleDemo]: https://github.com/ossrs/srs/wiki/v4_EN_SampleDemo
[v4_CN_SrsLinuxArm]: https://github.com/ossrs/srs/wiki/v4_CN_SrsLinuxArm
[v4_EN_SrsLinuxArm]: https://github.com/ossrs/srs/wiki/v4_EN_SrsLinuxArm
[v4_CN_LinuxService]: https://github.com/ossrs/srs/wiki/v4_CN_LinuxService
[v4_EN_LinuxService]: https://github.com/ossrs/srs/wiki/v4_EN_LinuxService
[v4_CN_RTMP-ATC]: https://github.com/ossrs/srs/wiki/v4_CN_RTMP-ATC
[v4_EN_RTMP-ATC]: https://github.com/ossrs/srs/wiki/v4_EN_RTMP-ATC
[v4_CN_HTTPApi]: https://github.com/ossrs/srs/wiki/v4_CN_HTTPApi
[v4_EN_HTTPApi]: https://github.com/ossrs/srs/wiki/v4_EN_HTTPApi
[v4_CN_Ingest]: https://github.com/ossrs/srs/wiki/v4_CN_Ingest
[v4_EN_Ingest]: https://github.com/ossrs/srs/wiki/v4_EN_Ingest
[v4_CN_DVR]: https://github.com/ossrs/srs/wiki/v4_CN_DVR
[v4_EN_DVR]: https://github.com/ossrs/srs/wiki/v4_EN_DVR
[v4_CN_SrsLog]: https://github.com/ossrs/srs/wiki/v4_CN_SrsLog
[v4_EN_SrsLog]: https://github.com/ossrs/srs/wiki/v4_EN_SrsLog
[v4_CN_DRM2]: https://github.com/ossrs/srs/wiki/v4_CN_DRM#tokentraverse
[v4_EN_DRM2]: https://github.com/ossrs/srs/wiki/v4_EN_DRM#tokentraverse
[v4_CN_SampleHTTP]: https://github.com/ossrs/srs/wiki/v4_CN_SampleHTTP
[v4_EN_SampleHTTP]: https://github.com/ossrs/srs/wiki/v4_EN_SampleHTTP
[v4_CN_FlvVodStream]: https://github.com/ossrs/srs/wiki/v4_CN_FlvVodStream
[v4_EN_FlvVodStream]: https://github.com/ossrs/srs/wiki/v4_EN_FlvVodStream
[v4_CN_Security]: https://github.com/ossrs/srs/wiki/v4_CN_Security
[v4_EN_Security]: https://github.com/ossrs/srs/wiki/v4_EN_Security
[v4_CN_DeliveryHttpStream]: https://github.com/ossrs/srs/wiki/v4_CN_DeliveryHttpStream
[v4_EN_DeliveryHttpStream]: https://github.com/ossrs/srs/wiki/v4_EN_DeliveryHttpStream
[v4_CN_DeliveryHDS]: https://github.com/ossrs/srs/wiki/v4_CN_DeliveryHDS
[v4_EN_DeliveryHDS]: https://github.com/ossrs/srs/wiki/v4_EN_DeliveryHDS
[v4_CN_Streamer]: https://github.com/ossrs/srs/wiki/v4_CN_Streamer
[v4_EN_Streamer]: https://github.com/ossrs/srs/wiki/v4_EN_Streamer
[v4_CN_Streamer2]: https://github.com/ossrs/srs/wiki/v4_CN_Streamer#push-http-flv-to-srs
[v4_EN_Streamer2]: https://github.com/ossrs/srs/wiki/v4_EN_Streamer#push-http-flv-to-srs
[v4_CN_SampleHttpFlv]: https://github.com/ossrs/srs/wiki/v4_CN_SampleHttpFlv
[v4_EN_SampleHttpFlv]: https://github.com/ossrs/srs/wiki/v4_EN_SampleHttpFlv
[v4_CN_SampleHttpFlvCluster]: https://github.com/ossrs/srs/wiki/v4_CN_SampleHttpFlvCluster
[v4_EN_SampleHttpFlvCluster]: https://github.com/ossrs/srs/wiki/v4_EN_SampleHttpFlvCluster
[v4_CN_SampleDASH]:https://github.com/ossrs/srs/wiki/v4_CN_SampleDASH
[v4_EN_SampleDASH]:https://github.com/ossrs/srs/wiki/v4_EN_SampleDASH
[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
[v4_CN_Contact]: https://github.com/ossrs/srs/wiki/v4_CN_Contact
[v4_EN_Contact]: https://github.com/ossrs/srs/wiki/v4_EN_Contact
[LICENSE]: https://github.com/ossrs/srs/blob/4.0release/LICENSE
[LicenseMixing]: https://github.com/ossrs/srs/wiki/LicenseMixing
[release2]: https://github.com/ossrs/srs/wiki/v4_CN_Product#release20
[release3]: https://github.com/ossrs/srs/wiki/v4_CN_Product#release30
[release4]: https://github.com/ossrs/srs/wiki/v4_CN_Product#release40
