rtcdatachannel

问题 I want to create an data channel. But I'm having some difficulties to implement this. I have added the code that runs on the "caller side": func initWebRTC() { RTCInitializeSSL() peerConnectionFactory = RTCPeerConnectionFactory() let mandatoryConstraints = ["OfferToReceiveAudio": "true", "OfferToReceiveVideo": "false"] let optionalConstraints = [ "DtlsSrtpKeyAgreement": "true", "RtpDataChannels" : "true"] mediaConstraints = RTCMediaConstraints.init(mandatoryConstraints: mandatoryConstraints,

问题 I want to create an data channel. But I'm having some difficulties to implement this. I have added the code that runs on the "caller side": func initWebRTC() { RTCInitializeSSL() peerConnectionFactory = RTCPeerConnectionFactory() let mandatoryConstraints = ["OfferToReceiveAudio": "true", "OfferToReceiveVideo": "false"] let optionalConstraints = [ "DtlsSrtpKeyAgreement": "true", "RtpDataChannels" : "true"] mediaConstraints = RTCMediaConstraints.init(mandatoryConstraints: mandatoryConstraints,

问题 The intent is for this to become a Community Wiki post that is kept up-to-date so developers interested in implementing communication of JSON messages browser-to-browser (p2p) with WebRTC DataChannels have simple yet functional examples. WebRTC DataChannels are experimental and still in draft. It seems that currently the web is a minefield of outdated WebRTC examples and even more so if a developer is trying to learn the RTCDataChannel API. Simple yet functional 1-page examples that work

问题 I'm fairly new in WebRTC. I'm trying to establish a simple data channel between two peers, without audio nor video; just text data. At the end it's going to be a game where 2-7 peers will connect to a peer who will be game master. After hours of googling and reading html5rocks, MDN and other stack posts, I have tried many things, but I still doesn't manage to make it work. Everything works fine when I open the page on two different Firefox tabs. I can see that one of the tabs sends "Hello,

问题 I wrote a webrtc webapp (with video + audio + dataChannel) on: https://github.com/wennycooper/wsProject I wrote an Android webrtc app too on: https://github.com/wennycooper/webrtcClient The webapp-to-webapp call works fine. The androidapp-to-androidapp without data channel also works fine. I tried to add data channel code into androidapp and make call from webapp to androidapp. When the callee received the Offer, it shown following error: 04-10 15:48:32.410: W/libjingle(10639): Warning

问题 I can not use the following methods. Because i use only datachannel (not use getUserMedia) <script> peerConnection.removeStream(remoteStream) remoteVideo.onerror = null; remoteVideo.pause(); remoteVideo.src = undefined; remoteStream.stop(); remoteStream.onended = null; remoteStream = null; peerConnection.removeStream(localStream) localVideo.onerror = null; localVideo.pause(); localVideo.src = undefined; localStream.stop(); localStream.onended = null; localStream = null; </script> Is there a

问题 I want to send unidirectional streaming data over a WebRTC datachannel, and is looking of the best configuration options (high BW, low latency/jitter) and others' experience with expected bitrates in this kind of application. My test program sends chunks of 2k, with a bufferedAmountLowThreshold event callback of 2k and calls send again until bufferedAmount exceeds 16k. Using this in Chrome, I achieve ~135Mbit/s on LAN and ~20Mbit/s from/to a remote connection, that has 100Mbit/s WAN

问题 The WebRTC RTCPeerConnection interface has a createDataChannel method and an ondatachannel event handler. How do these interact? How do I create a single data channel that can be used to send/receive data between two peers? Also, the RTCDataChannelInit constructor has a negotiated field, which by default is set to false and says it results in the channel being announced in-band. What happens if it's set to true ? 回答1: Firstly: to create any data channel, the peers need to exchange an SDP

问题 I am trying to implement WebRTC DataChannel on Android. I want to create a simple peerconnection object which will open DataChannel to send data over the network using WebRTC. I am getting error when I try to create my PeerConnection Object. I learnt that we use factory to create peerconnection object using factory.createPeerConnection() . For this, I have to create the PeerConnectionFactory object first. After this, I can use it to create PeerConnection Object. I get errors Could not find

问题 I want to use canvas element as mediastreamsource of video part of the webrtc communication, any directions would be helpful, scoured the net, not finding much resources discussing this topic * Long Background Story * The problem, I cannot send the video from camera directly, it is part of the requirements that I process the video(some image processing stuff, out of scope for this issue) before displaying. Previously, on the other peer's browser, instead of directly displaying the video using