
1、doubango官网:
2、doubango是一个开源的VOIP基础平台,并能用于嵌入式和桌面系统的开源框架,该框架使用ANSCI-C编写,具有很好的可移植性。
3、根据doubango的框架、特点与linphone的对比,显然doubango更适合做视频会议系统和视频会议终端的选择,理由?根据linphone的rtp会话管理可见只适合2方进行视频通话,如要支持多方(>3)视频会议,需MCU配合server进行音视频转发和mix,linphone对于nat穿透的方案只有stun和转发,linphone适合更适合当做一款网络电话终端供普通网民当做视频电话用。
4、doubango包含了SIP/IMS (VoIP) 的客户端、服务器端的组件。
5、doubango的主要特点
?? Powerful MCU (Multipoint Control Unit) for audio and video mixing
?? Stereoscopic (spatial) 3D and stereophonic audio
?? Full (1080p) and Ultra (2160p) HD video up to 120fps
?? Conference recording to a file (containers: *.mp4, *.avi, *.mkv or *.webm)
?? Smart adaptive audio and video bandwidth management
?? Congestion control mechanism
?? SIP registrar
?? 4 SIP transports (WebSocket, TCP, TLS and UDP)
?? SA (direct connection to SIP clients) and AS (behind a server, such as Asterisk, reSIProcate,
openSIPS, Kamailio…) modes
?? Support for any WebRTC-capable browser (WebRTC demo client at )
?? Mixing different audio and video codecs on a single bridge (h264, vp8, h263, mp4v-es,
theora, opus, g711, speex, g722, gsm, g729, amr, ilbc)
?? Protecting a bridge with PIN code
?? Unlimited number of bridges and participants
?? Connecting any SIP endpoint
?? Easy interconnection with PSTN
?? NAT traversal (Symmetric RTP, RTCP-MUX, ICE, STUN and TURN)
?? RTCP Feedbacks (NACK, PLI, FIR, TMMBN, REMB…) for better video experience
?? Secure signalling (WSS, TLS) and media (SDES-SRTP and DTLS-SRTP)
?? Continuous presence
?? Smart algorithm to detect speakers and listeners
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没看到物价下降
只能说呵呵