Live555 是一个为流媒体提供解决方案的跨平台的C++开源项目，它实现了对标准流媒体传输协议如RTP/RTCP、RTSP、SIP等的支持。Live555实现了对多种音视频编码格式的音视频数据的流化、接收和处理等支持，包括MPEG、H.263+、DV、JPEG视频和多种音频编码。同时由于良好的设计，Live555非常容易扩展对其他格式的支持。-Live555 is a streaming cross-platform solutions C++ open source project, which implements the standard streaming protocols such as RTP/RTCP, RTSP, SIP, etc.. Live555 fluidized receiving and processing of audio and video data support a variety of audio and video encoding format, including MPEG, H.263+, DV, JPEG video and multiple audio coding. Due to good design, Live555 very easy to extend support to other formats.