直播平台源码的搭建，离不开流媒体视频服务

前言

最近自己在研究有关于直播平台源码流媒体播放的技术，网上资料甚少。出于开源精神以及在查阅资料得到各位大佬的帮助，故将自己的心得写下记录，便于分享以及日后维护。

在此极力感谢并推荐雷神（雷霄骅）

个人博客：https://blog.csdn.net/leixiaohua1020

系统组成

一个完整的直播平台源码流媒体系统大致需要三个部分组成：编码器、流服务器和播放器。

编码器通过对内容来源（如MP3文件或者麦克风输入）进行编码，并将编码过的内容发送到直播平台源码流服务器；直播平台源码流服务器再将它们发布到Internet，这样直播平台源码客户端的播放器只要连接到流服务器就可以进行在线播放了。

而本次搭建过程是基于RTMP协议完成。

RTMP协议简介

播放一个RTMP协议的流媒体需要经过以下几个步骤：握手，建立连接，建立流，播放。

RTMP连接都是以握手作为开始的。

1：建立连接阶段用于建立客户端与服务器之间的“网络连接”；

2：建立流阶段用于建立客户端与服务器之间的“网络流”；

3：播放阶段用于传输视音频数据。

Red5 概述

Red5 是一个采用 Java 开发开源的 Flash 流媒体服务器。免费开源使软件更加容易扩展，下载后你可以对源代码进行修改；更加经济，比起 FMS 高昂的费用，Red5 能为一般的应用节约大笔费用；同时服务器端的 Java 面向对象语言比起 FMS 服务器端的 ActionScript2 语言更加成熟。鉴于 Red5 的种种优势，推出不久便被广大用户所接受。

Red 5 支持:

把音频（MP3）和视频（FLV, F4V, MP4, 3GP）转换成播放流；

1、录制客户端播放流, 把摄像头，麦克风等传入的音频视频录制保存到服务器；

2、共享对象；

3、现场直播流发布；

4、远程调用；

5、协议:RTMP, RTMPT, RTMPS, and RTMPE。

Red5 服务器搭建

JDK自行安装_本文不做演示

可参考：https://jingyan.baidu.com/article/6dad5075d1dc40a123e36ea3.html

下载Red5：（本人使用版本：1.0.10）

官网：http://red5.org/

GitHub：https://github.com/Red5/red5-server/releases

下载后解压到自己的固定文件夹，如图：

可以选择在conf/red5.properties文件下修改IP和端口号

# Socket policypolicy.host=0.0.0.0policy.port=843# HTTPhttp.host=192.168.1.115 //可在此修改HTTP  IP地址http.port=5080https.port=5443http.URIEncoding=UTF-8http.max_headers_size=8192http.max_keep_alive_requests=-1http.max_threads=20http.acceptor_thread_count=10http.processor_cache=20# RTMPrtmp.host=192.168.1.115 //可在此修改IP地址rtmp.port=1935rtmp.io_threads=8rtmp.send_buffer_size=65536rtmp.receive_buffer_size=65536rtmp.ping_interval=1000rtmp.max_inactivity=60000rtmp.max_handshake_time=5000rtmp.tcp_nodelay=truertmp.tcp_keepalive=falsertmp.default_server_bandwidth=10000000rtmp.default_client_bandwidth=10000000rtmp.client_bandwidth_limit_type=2rtmp.bandwidth_detection=falsertmp.encoder_base_tolerance=5000rtmp.encoder_drop_live_future=false# traffic optimization hinting. to disable set traffic class set to -1# low delay + high throughput == 24 (0x18)rtmp.traffic_class=-1# requested maximum length of the queue of incoming connectionsrtmp.backlog=32# the interval (seconds) between each throughput calculationrtmp.thoughput_calc_interval=15# enable use of the default mina acceptorrtmp.default_acceptor=true# socket i/o pool sizes used when default acceptor is disabledrtmp.initial_pool_size=0rtmp.max_pool_size=2rtmp.max_processor_pool_size=8rtmp.executor_keepalive_time=60000mina.logfilter.enable=false# scheduler configs (per application)rtmp.scheduler.pool_size=8rtmp.deadlockguard.sheduler.pool_size=8# message executor configs (per application) - adjust these as needed if you get tasks rejectedrtmp.executor.core_pool_size=4rtmp.executor.max_pool_size=32rtmp.executor.queue_capacity=64# drop audio packets when queue is almost full, to disable this, set to 0rtmp.executor.queue_size_to_drop_audio_packets=60# maximum amount of time allotted to process a single rtmp message / packet in milliseconds, set it as 0 to disable timeoutrtmp.max_handling_time=2000# connection tweaks - dont modify unless you know what you're doingrtmp.channel.initial.capacity=3rtmp.channel.concurrency.level=1rtmp.stream.initial.capacity=1rtmp.stream.concurrency.level=1rtmp.pending.calls.initial.capacity=3rtmp.pending.calls.concurrency.level=1rtmp.reserved.streams.initial.capacity=1rtmp.reserved.streams.concurrency.level=1# maximum packet size allowed in bytesrtmp.max_packet_size=3145728# RTMPSrtmps.host=0.0.0.0rtmps.port=8443rtmps.ping_interval=5000rtmps.max_inactivity=60000rtmps.max_keep_alive_requests=-1rtmps.max_threads=8rtmps.acceptor_thread_count=2rtmps.processor_cache=20# RTMPS Key and Trust store parametersrtmps.keystorepass=passwordrtmps.keystorefile=conf/keystore.jksrtmps.truststorepass=passwordrtmps.truststorefile=conf/truststore.jks# RTMPTrtmpt.host=0.0.0.0rtmpt.port=8088rtmpt.ping_interval=5000rtmpt.max_inactivity=60000rtmpt.max_handshake_time=5000rtmpt.max_keep_alive_requests=-1rtmpt.max_threads=8rtmpt.acceptor_thread_count=2rtmpt.processor_cache=20rtmpt.encoder_base_tolerance=5000rtmpt.encoder_drop_live_future=true# better setting for streaming mediartmpt.target_reponse_size=32768# best setting for small messages or shared objects#rtmpt.target_reponse_size=8192# max incoming messages to process at a time. the most that FP appears to send is 166rtmpt.max_in_msg_process=166# max time in millis that we will wait when offering data to the in or out queuertmpt.max_queue_offer_time=125# max offer attemptsrtmpt.max_queue_offer_attempts=4# Debug proxy (needs to be activated in red5-core.xml)proxy.source_host=127.0.0.1proxy.source_port=1936proxy.destination_host=127.0.0.1proxy.destination_port=1935# JMXjmx.rmi.host=localhostjmx.rmi.port=9999jmx.rmi.sport=9998jmx.rmi.port.remoteobjects=jmx.keystorepass=passwordjmx.mina.monitor.enable=falsejmx.mina.poll.interval=1000# Whether to always create the registry in-process, not attempting to# locate an existing registry at the specified port. Set to "true" in order# to avoid the overhead of locating an existing registry when you always intend# to create a new registry in any case.jmx.registry.create=true# Whether or not the MBeanServerFactoryBean should attempt to locate a running# MBeanServer before creating onejmx.reuse.existing.server=true# Whether to register the MBeanServer with the MBeanServerFactory, making it# available through MBeanServerFactory.findMBeanServer()jmx.register.factory=true# Whether any threads started for the JMXConnectorServer should be started as daemon threadsjmx.daemon=true# Whether the JMXConnectorServer should be started in a separate threadjmx.threaded=true# Server properties# max events to send in a single updateso.max.events.per.update=64so.scheduler.pool_size=4keyframe.cache.entry.max=500war.deploy.server.check.interval=600000fileconsumer.delayed.write=truefileconsumer.queue.size=120fileconsumer.wait.for.keyframe=truesubscriberstream.buffer.check.interval=5000subscriberstream.underrun.trigger=100subscriberstream.max.pending.frames=10subscriberstream.max.sequential.frames=10broadcaststream.auto.record=false

启动red5.bat

出现上图后在浏览器输入：http://IP:port/

如：http://192.168.1.115:5080/

即代表启动成功！

声明：本文由云豹科技转发，如有侵权请联系作者删除