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v1_CN_RTMPHandshake · ossrs/srs Wiki · GitHub
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v1_CN_RTMPHandshake
winlin edited this page Jan 6, 2022
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15 revisions
HOME > CN > RTMP Handshake
rtmp 1.0规范中,指定了RTMP的握手协议:
- c0/s0:一个字节,说明是明文还是加密。
- c1/s1: 1536字节,4字节时间,4字节0x00,1528字节随机数
- c2/s2: 1536字节,4字节时间1,4字节时间2,1528随机数和s1相同。 这个就是srs以及其他开源软件所谓的simple handshake,简单握手,标准握手,FMLE也是使用这个握手协议。
Flash播放器连接服务器时,若服务器只支持简单握手,则无法播放h264和aac的流,可能是adobe的限制。adobe将简单握手改为了有一系列加密算法的复杂握手(complex handshake) ,详细协议分析参考变更的RTMP握手
下表为总结:
方式 | 依赖库 | 播放器 | 客户端 | SRS | 用途 |
---|---|---|---|---|---|
Simple 标准握手 简单握手 |
不依赖 | vp6+mp3/speex | 所有 | 支持 | 编码器,譬如FMLE,FFMPEG srs-librtmp(两种都支持,推荐用Simple) |
Complex 复杂握手 |
openssl | vp6+mp3/speex h264+aac |
Flash | 支持 | 主要是Flash播放器播放H264+aac流时需要, 其他都不需要 |
播放器(Flash Player): Flash播放器支持的编码。
备注:SRS编译时若打开了SSL选项(--with-ssl),SRS会先使用复杂握手和客户端握手,若复杂握手失败,则尝试简单握手。
Winlin 2014.2
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