Simple-RTMP-Server
==================
SRS(SIMPLE RTMP Server) over state-threads created in 2013.
SRS is a simple, RTMP/HLS, high-performance, single(plan)/multiple processes, edge(plan)/origin live server.
SRS supports [vhost](https://github.com/winlinvip/simple-rtmp-server/wiki/RtmpUrlVhost), rtmp, [HLS](https://github.com/winlinvip/simple-rtmp-server/wiki/DeliveryHLS), transcoding, forward, [http hooks](https://github.com/winlinvip/simple-rtmp-server/wiki/HTTPCallback).
Blog: [http://blog.csdn.net/win_lin](http://blog.csdn.net/win_lin)
See also: [https://github.com/winlinvip/simple-rtmp-server](https://github.com/winlinvip/simple-rtmp-server)
See also: [http://winlinvip.github.io/simple-rtmp-server](http://winlinvip.github.io/simple-rtmp-server)
TencentQQ: [http://url.cn/WAHICw](http://url.cn/WAHICw) (Group: 212189142)
### AUTHORS
The PRIMARY AUTHORS are (and/or have been)(Authors ordered by first contribution):
* winlin([winterserver](#)): [http://blog.csdn.net/win_lin](http://blog.csdn.net/win_lin)
* wenjie([wenjiegit](https://github.com/wenjiegit/simple-rtmp-server)): [http://blog.chinaunix.net/uid/25006789.html](http://blog.chinaunix.net/uid/25006789.html)
About the primary AUTHORS:
* Contribute important features to SRS.
* Names of all PRIMARY AUTHORS response in NetConnection.connect and metadata.
And here is an inevitably incomplete list of MUCH-APPRECIATED CONTRIBUTORS --
people who have submitted patches, reported bugs, added translations, helped
answer newbie questions, and generally made SRS that much better: [AUTHORS.txt](https://github.com/winlinvip/simple-rtmp-server/blob/master/AUTHORS.txt)
### Wiki
[https://github.com/winlinvip/simple-rtmp-server/wiki](https://github.com/winlinvip/simple-rtmp-server/wiki)
### Usage(RTMP) for RTMP only
Requires: Centos6.x 64bits, others see [Build](https://github.com/winlinvip/simple-rtmp-server/wiki/Build)
Step 0: get SRS
git clone https://github.com/winlinvip/simple-rtmp-server &&
cd simple-rtmp-server/trunk
Step 1: build SRS
./configure --with-ssl --without-hls --without-ffmpeg --without-http && make
Step 2: start SRS
./objs/srs -c conf/srs.conf
Step 3: [Adobe FMLE](http://www.adobe.com/cn/products/flash-media-encoder.html) publish demo live stream
FMS URL: rtmp://192.168.1.170/live
Stream: livestream
Step 4: [VLC (2.1+)](http://www.videolan.org/vlc/) play live stream.
rtmp url: rtmp://192.168.1.170/live/livestream
### Usage(simple) for all features
Requires: Centos6.x 64bits, others see [Build](https://github.com/winlinvip/simple-rtmp-server/wiki/Build)
Step -1: get SRS
git clone https://github.com/winlinvip/simple-rtmp-server &&
cd simple-rtmp-server/trunk
Step 0: build SRS system.
bash scripts/build.sh
Step 1: start SRS all demo features.
bash scripts/run.sh
Step 2: SRS live show: [http://your-server-ip](http://your-server-ip)
Step 3: stop SRS demo
bash scripts/stop.sh
### Usage(detail) for all features
Requires: Centos6.x 64bits, others see [Build](https://github.com/winlinvip/simple-rtmp-server/wiki/Build)
Step 0: get SRS
git clone https://github.com/winlinvip/simple-rtmp-server &&
cd simple-rtmp-server/trunk
Step 1: build SRS
./configure --with-ssl --with-hls --with-ffmpeg --with-http && make
Step 2: start SRS
./objs/srs -c conf/srs.conf
Step 3(optinal): start SRS listen at 19350 to forward to
./objs/srs -c conf/srs.19350.conf
Step 4(optinal): start nginx for HLS
sudo ./objs/nginx/sbin/nginx
Step 5(optinal): start http hooks for SRS callback
python ./research/api-server/server.py 8085
Step 6: publish demo live stream
FMS URL: rtmp://127.0.0.1/live?vhost=demo.srs.com
Stream: livestream
FFMPEG to publish the default demo stream:
for((;;)); do \
./objs/ffmpeg/bin/ffmpeg -re -i ./doc/source.200kbps.768x320.flv \
-vcodec copy -acodec copy \
-f flv -y rtmp://127.0.0.1/live?vhost=demo.srs.com/livestream; \
sleep 1; \
done
Step 7: publish players live stream
FMS URL: rtmp://127.0.0.1/live?vhost=players
Stream: livestream
FFMPEG to publish the players demo stream:
for((;;)); do \
./objs/ffmpeg/bin/ffmpeg -re -i ./doc/source.200kbps.768x320.flv \
-vcodec copy -acodec copy \
-f flv -y rtmp://127.0.0.1/live?vhost=players/livestream; \
sleep 1; \
done
Step 8: add server ip to client hosts as demo.
# edit the folowing file:
# linux: /etc/hosts
# windows: C:\Windows\System32\drivers\etc\hosts
# where server ip is 192.168.2.111
192.168.2.111 demo.srs.com
Step 9: play live stream.
players: http://demo.srs.com/players
rtmp url: rtmp://demo.srs.com/live/livestream
m3u8 url: http://demo.srs.com/live/livestream.m3u8
for android: http://demo.srs.com/live/livestream.html
Step 10(optinal): play live stream auto transcoded
rtmp url: rtmp://demo.srs.com/live/livestream_ld
m3u8 url: http://demo.srs.com/live/livestream_ld.m3u8
for android: http://demo.srs.com/live/livestream_ld.html
rtmp url: rtmp://demo.srs.com/live/livestream_sd
m3u8 url: http://demo.srs.com/live/livestream_sd.m3u8
for android: http://demo.srs.com/live/livestream_sd.html
Step 11(optinal): play live stream auto forwarded, the hls dir change to /forward
rtmp url: rtmp://demo.srs.com:19350/live/livestream
m3u8 url: http://demo.srs.com/forward/live/livestream.m3u8
for android: http://demo.srs.com/forward/live/livestream.html
rtmp url: rtmp://demo.srs.com:19350/live/livestream_ld
m3u8 url: http://demo.srs.com/forward/live/livestream_ld.m3u8
for android: http://demo.srs.com/forward/live/livestream_ld.html
rtmp url: rtmp://demo.srs.com:19350/live/livestream_sd
m3u8 url: http://demo.srs.com/forward/live/livestream_sd.m3u8
for android: http://demo.srs.com/forward/live/livestream_sd.html
Step 12(optinal): modify the config and reload it (all features support reload)
killall -1 srs
or use specified signal to reload:
killall -s SIGHUP srs
### Architecture
System Architecture:
+------------------------------------------------------+
| SRS(Simple RTMP Server) |
+---------------+---------------+-----------+----------+
| API/hook | Transcoder | HLS | RTMP |
| http-parser | FFMPEG/x264 | NGINX/ts | protocol |
+---------------+---------------+-----------+----------+
| Network(state-threads) |
+------------------------------------------------------+
| All Linux(RHEL,CentOS,Ubuntu,Fedora...) |
+------------------------------------------------------+
Stream Architecture:
+---------+ +----------+
+ Publish + + Deliver |
+---|-----+ +----|-----+
+-----------+-------------------------+----------------+
| Encoder | SRS(Simple RTMP Server) | Client |
+-----------+-------------------------+----------------+
| (FMLE, | +-> RTMP protocol ----+-> Flash Player |
| FFMPEG, --+-> +-> HLS/NGINX --------+-> m3u8 player |
| Flash, | +-> Fowarder ---------+-> RTMP Server |
| XSPLIT, | +-> Transcoder -------+-> RTMP Server |
| ...) | +-> DVR --------------+-> FILE |
| | +-> BandwidthTest ----+-> Flash/StLoad |
+-----------+-------------------------+----------------+
(plan) RTMP cluster(origin/edge) Architecture:
Remark: cluster over forward, see [Cluster](https://github.com/winlinvip/simple-rtmp-server/wiki/Cluster)
+---------+ +-----------------+ +-----------------------+
+ Encoder +--+-->-+ SRS(RTMP Edge) +--->-+ (RTMP Origin) |
+---------+ | +-----------------+ | SRS/FMS/NGINX-RTMP |
| | Red5/HELIX/CRTMP |
+-------------------------->-+ ...... |
+-----------------------+
Schema#1: Any RTMP encoder push RTMP stream to RTMP (origin/edge)server,
where SRS RTMP Edge server will forward stream to origin.
+-------------+ +-----------------+ +--------------------+
| RTMP Origin +-->-+ SRS(RTMP Edge) +--+->-+ Client(RTMP/HLS) |
+-------------+ +-----------------+ | | Flash/IOS/Android |
| +--------------------+
|
| +-----------------+
+->-+ SRS(RTMP Edge) +
+-----------------+
Schema#2: SRS RTMP Edge server pull stream from origin (or upstream SRS
RTMP Edge server), then delivery to Client.
(plan) SRS Multiple processes Architecture:
+---------------------------+
+-----+ worker process(3) |
+----------------+ | +---------------------------+
| master process |---(2)---+
| (1)manager | | +---------------------------+
+----------------+ +-----+ worker process N |
| +---------------------------+
|
| +---------------------------+
+-----+ bandwidth test process(4) |
+---------------------------+
Remark:
(1) master process: to fork processes, schedule fd(client) to the "right"
process, forward messages between processes
(2) communication: master process use unix domain socket to communicate
with worker processes.
(3) worker process: to provide RTMP streaming service, generate HLS files.
(4) bandwidth test process: for all bandwidth test request, to make the
bandwidth testing has minimal effect to streaming service
Bandwidth Test Workflow:
+------------+ +----------+
| Client | | Server |
+-----+------+ +-----+----+
| |
| connect vhost-------------> |
| <-----------result(success) |
| |
| <----------call(start play) |
| result(playing)----------> |
| <-------------data(playing) |
| <-----------call(stop play) |
| result(stopped)----------> |
| |
| <-------call(start publish) |
| result(publishing)-------> |
| data(publishing)---------> |
| <--------call(stop publish) |
| result(stopped)(1)-------> |
| |
| <--------------------report |
| final(2)-----------------> |
| <END> |
@See: class SrsBandwidth comments.
### System Requirements
Supported operating systems and hardware:
* All Linux , both 32 and 64 bits
* All handware.
### Summary
1. Simple: also stable enough.
2. [High-performance](https://github.com/winlinvip/simple-rtmp-server/wiki/Performance): single-thread, async socket, event/st-thread driven.
3. With RTMP edge server, support origin server.
4. NO vod streaming, live streaming only.
5. With multiple processes, support single process.
6. Support vhost, support \_\_defaultVhost\_\_.
7. Support adobe rtmp live streaming.
8. Support apple [HLS(m3u8)](https://github.com/winlinvip/simple-rtmp-server/wiki/DeliveryHLS) live streaming.
9. Support reload config to enable changes.
10. Support cache last gop for flash player to fast startup.
11. Support listen at multiple ports.
12. Support long time(>4.6hours) publish/play.
13. High performace, 1800 connections(500kbps), 900Mbps, CPU 90.2%, 41MB
14. Support forward publish stream to build active-standby [cluster](https://github.com/winlinvip/simple-rtmp-server/wiki/Cluster).
15. Support broadcast by forward the stream to other servers(origin/edge).
16. Support live stream transcoding by ffmpeg.
17. Support live stream forward(acopy/vcopy) by ffmpeg.
18. Support ffmpeg filters(logo/overlay/crop), x264 params.
19. Support audio transcode only, speex/mp3 to aac
20. Support [http callback api hooks](https://github.com/winlinvip/simple-rtmp-server/wiki/HTTPCallback)(for authentication and injection).
21. Support bandwidth test api and flash client.
22. Player, publisher(encoder), and demo pages(jquery+bootstrap).
23. Demo video meeting or chat(SRS+cherrypy+jquery+bootstrap).
24. [dev] Full documents in wiki, in chineses.
25. [plan] Support HLS cluster, use RTMP ATC to generate the TS
26. [plan] Support RTMP edge server, push/pull stream from any RTMP server
27. [plan] Support multiple processes, for both origin and edge
28. [plan] Support network based cli and json result.
29. [no-plan] Support adobe flash refer/token/swf verification.
30. [no-plan] Support adobe amf3 codec.
31. [no-plan] Support dvr(record live to vod file)
32. [no-plan] Support encryption: RTMPE/RTMPS, HLS DRM
33. [no-plan] Support RTMPT, http to tranverse firewalls
34. [no-plan] Support file source, transcoding file to live stream
35. [no-plan] Support RTSP
### Performance
1. 300 connections, 150Mbps, 500kbps, CPU 18.8%, 5956KB.
2. 600 connections, 300Mbps, 500kbps, CPU 32.1%, 9808KB.
3. 900 connections, 450Mbps, 500kbps, CPU 49.9%, 11MB.
4. 1200 connections, 600Mbps, 500kbps, CPU 72.4%, 15MB.
5. 1500 connections, 750Mbps, 500kbps, CPU 81.9%, 28MB.
6. 1800 connections, 900Mbps, 500kbps, CPU 90.2%, 41MB.
[winlin@dev6 srs]$ dstat
----total-cpu-usage---- -dsk/total- ---net/lo-- ---paging-- ---system--
usr sys idl wai hiq siq| read writ| recv send| in out | int csw
58 9 32 0 0 1| 0 4168k| 277M 277M| 0 0 | 29k 25k
61 8 30 0 0 1| 0 1168k| 336M 336M| 0 0 | 29k 24k
63 8 27 0 0 1| 0 2240k| 124M 124M| 0 0 | 32k 33k
62 8 28 0 0 1| 0 1632k| 110M 110M| 0 0 | 31k 33k
53 7 40 0 0 1| 0 1360k| 115M 115M| 0 0 | 24k 26k
51 7 41 0 0 1| 0 1184k| 146M 146M| 0 0 | 24k 27k
39 6 54 0 0 1| 0 1284k| 105M 105M| 0 0 | 22k 28k
41 6 52 0 0 1| 0 1264k| 116M 116M| 0 0 | 25k 28k
48 6 45 0 0 1| 0 1272k| 143M 143M| 0 0 | 27k 27k
See also: [Performance Test Guide](https://github.com/winlinvip/simple-rtmp-server/wiki/Performance)
### Releases
* 2013-12-25, [Release v0.9](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.9), support bandwidth test, player/encoder/chat demos. 20926 lines.
* 2013-12-08, [Release v0.8](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.8), support http hooks callback, update [st_load](https://github.com/winlinvip/st-load). 19186 lines.
* 2013-12-03, [Release v0.7](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.7), support live stream transcoding. 17605 lines.
* 2013-11-29, [Release v0.6](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.6), support forward stream to origin/edge. 16094 lines.
* 2013-11-26, [Release v0.5](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.5), support HLS(m3u8), fragment and window. 14449 lines.
* 2013-11-10, [Release v0.4](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.4), support reload config, pause, longtime publish/play. 12500 lines.
* 2013-11-04, [Release v0.3](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.3), support vhost, refer, gop cache, listen multiple ports. 11773 lines.
* 2013-10-25, [Release v0.2](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.2), support rtmp flash publish, h264, time jitter correct. 10125 lines.
* 2013-10-23, [Release v0.1](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.1), support rtmp FMLE/FFMPEG publish, vp6. 8287 lines.
* 2013-10-17, Created.
### Compare
* SRS v0.9: 20926 lines. player/encoder/chat demos. bandwidth test for encoder/CDN.
* SRS v0.8: 19186 lines. implements http hooks refer to [nginx-rtmp](https://github.com/arut/nginx-rtmp-module).
* SRS v0.7: 17605 lines. implements transcoding(FFMPEG) feature refer to [wowza](http://www.wowza.com).
* SRS v0.6: 16094 lines. important feature forward for CDN.
* SRS v0.5: 14449 lines. implements HLS feature refer to [nginx-rtmp](https://github.com/arut/nginx-rtmp-module).
* SRS v0.4: 12500 lines. important feature reload for CDN.
* SRS v0.3: 11773 lines. implements vhost feature refer to [FMS](http://www.adobe.com/products/adobe-media-server-family.html).
* SRS v0.2: 10125 lines. implements rtmp protocol stack refer to [nginx-rtmp](https://github.com/arut/nginx-rtmp-module).
* SRS v0.1: 8287 lines. base on state-threads.
* nginx-rtmp v1.0.4: 26786 lines
* nginx v1.5.0: 139524 lines
### History
* v1.0, 2014-02-27, add wiki [LowLatency](https://github.com/winlinvip/simple-rtmp-server/wiki/LowLatency), [HTTPCallback](https://github.com/winlinvip/simple-rtmp-server/wiki/HTTPCallback), [ServerSideScript](https://github.com/winlinvip/simple-rtmp-server/wiki/ServerSideScript), [IDE](https://github.com/winlinvip/simple-rtmp-server/wiki/IDE)
* v1.0, 2014-01-19, add wiki [DeliveryHLS](https://github.com/winlinvip/simple-rtmp-server/wiki/DeliveryHLS)
* v1.0, 2014-01-12, add wiki [HowToAskQuestion](https://github.com/winlinvip/simple-rtmp-server/wiki/HowToAskQuestion), [RtmpUrlVhost](https://github.com/winlinvip/simple-rtmp-server/wiki/RtmpUrlVhost)
* v1.0, 2014-01-11, fix jw/flower player pause bug, which send closeStream actually.
* v1.0, 2014-01-05, add wiki [Build](https://github.com/winlinvip/simple-rtmp-server/wiki/Build), [Performance](https://github.com/winlinvip/simple-rtmp-server/wiki/Performance), [Cluster](https://github.com/winlinvip/simple-rtmp-server/wiki/Cluster)
* v1.0, 2014-01-01, change listen(512), chunk-size(60000), to improve performance.
* v1.0, 2013-12-27, merge from wenjie, the bandwidth test feature.
* v0.9, 2013-12-25, [v0.9](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.9) released. 20926 lines.
* v0.9, 2013-12-25, fix the bitrate bug(in Bps), use enhanced microphone.
* v0.9, 2013-12-22, demo video meeting or chat(SRS+cherrypy+jquery+bootstrap).
* v0.9, 2013-12-22, merge from wenjie, support banwidth test.
* v0.9, 2013-12-22, merge from wenjie: support set chunk size at vhost level
* v0.9, 2013-12-21, add [players](http://demo.srs.com/players) for play and publish.
* v0.9, 2013-12-15, ensure the HLS(ts) is continous when republish stream.
* v0.9, 2013-12-15, fix the hls reload bug, feed it the sequence header.
* v0.9, 2013-12-15, refine protocol, use int64_t timestamp for ts and jitter.
* v0.9, 2013-12-15, support set the live queue length(in seconds), drop when full.
* v0.9, 2013-12-15, fix the forwarder reconnect bug, feed it the sequence header.
* v0.9, 2013-12-15, support reload the hls/forwarder/transcoder.
* v0.9, 2013-12-14, refine the thread model for the retry threads.
* v0.9, 2013-12-10, auto install depends tools/libs on centos/ubuntu.
* v0.8, 2013-12-08, [v0.8](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.8) released. 19186 lines.
* v0.8, 2013-12-08, support [http hooks](https://github.com/winlinvip/simple-rtmp-server/wiki/HTTPCallback): on_connect/close/publish/unpublish/play/stop.
* v0.8, 2013-12-08, support multiple http hooks for a event.
* v0.8, 2013-12-07, support http callback hooks, on_connect.
* v0.8, 2013-12-07, support network based cli and json result, add CherryPy 3.2.4.
* v0.8, 2013-12-07, update http/hls/rtmp load test tool [st_load](https://github.com/winlinvip/st-load), use SRS rtmp sdk.
* v0.8, 2013-12-06, support max_connections, drop if exceed.
* v0.8, 2013-12-05, support log_dir, write ffmpeg log to file.
* v0.8, 2013-12-05, fix the forward/hls/encoder bug.
* v0.7, 2013-12-03, [v0.7](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.7) released. 17605 lines.
* v0.7, 2013-12-01, support dead-loop detect for forwarder and transcoder.
* v0.7, 2013-12-01, support all ffmpeg filters and params.
* v0.7, 2013-11-30, support live stream transcoder by ffmpeg.
* v0.7, 2013-11-30, support --with/without -ffmpeg, build ffmpeg-2.1.
* v0.7, 2013-11-30, add ffmpeg-2.1, x264-core138, lame-3.99.5, libaacplus-2.0.2.
* v0.6, 2013-11-29, [v0.6](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.6) released. 16094 lines.
* v0.6, 2013-11-29, add performance summary, 1800 clients, 900Mbps, CPU 90.2%, 41MB.
* v0.6, 2013-11-29, support forward stream to other edge server.
* v0.6, 2013-11-29, support forward stream to other origin server.
* v0.6, 2013-11-28, fix memory leak bug, aac decode bug.
* v0.6, 2013-11-27, support --with or --without -hls and -ssl options.
* v0.6, 2013-11-27, support AAC 44100HZ sample rate for iphone, adjust the timestamp.
* v0.5, 2013-11-26, [v0.5](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.5) released. 14449 lines.
* v0.5, 2013-11-24, support HLS(m3u8), fragment and window.
* v0.5, 2013-11-24, support record to ts file for HLS.
* v0.5, 2013-11-21, add ts_info tool to demux ts file.
* v0.5, 2013-11-16, add rtmp players(OSMF/jwplayer5/jwplayer6).
* v0.4, 2013-11-10, [v0.4](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.4) released. 12500 lines.
* v0.4, 2013-11-10, support config and reload the pithy print.
* v0.4, 2013-11-09, support reload config(vhost and its detail).
* v0.4, 2013-11-09, support reload config(listen and chunk_size) by SIGHUP(1).
* v0.4, 2013-11-09, support longtime(>4.6hours) publish/play.
* v0.4, 2013-11-09, support config the chunk_size.
* v0.4, 2013-11-09, support pause for live stream.
* v0.3, 2013-11-04, [v0.3](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.3) released. 11773 lines.
* v0.3, 2013-11-04, support refer/play-refer/publish-refer.
* v0.3, 2013-11-04, support vhosts specified config.
* v0.3, 2013-11-02, support listen multiple ports.
* v0.3, 2013-11-02, support config file in nginx-conf style.
* v0.3, 2013-10-29, support pithy print log message specified by stage.
* v0.3, 2013-10-28, support librtmp without extended-timestamp in 0xCX chunk packet.
* v0.3, 2013-10-27, support cache last gop for client fast startup.
* v0.2, 2013-10-25, [v0.2](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.2) released. 10125 lines.
* v0.2, 2013-10-25, support flash publish.
* v0.2, 2013-10-25, support h264/avc codec by rtmp complex handshake.
* v0.2, 2013-10-24, support time jitter detect and correct algorithm
* v0.2, 2013-10-24, support decode codec type to cache the h264/avc sequence header.
* v0.1, 2013-10-23, [v0.1](https://github.com/winlinvip/simple-rtmp-server/releases/tag/0.1) released. 8287 lines.
* v0.1, 2013-10-23, support basic amf0 codec, simplify the api using c-style api.
* v0.1, 2013-10-23, support shared ptr msg for zero memory copy.
* v0.1, 2013-10-22, support vp6 codec with rtmp protocol specified simple handshake.
* v0.1, 2013-10-20, support multiple flash client play live streaming.
* v0.1, 2013-10-20, support FMLE/FFMPEG publish live streaming.
* v0.1, 2013-10-18, support rtmp message2chunk protocol(send\_message).
* v0.1, 2013-10-17, support rtmp chunk2message protocol(recv\_message).
Beijing, 2013
Winlin