webrtc, how to use IMAGE, instead video

Question

I make WEBRTC Video chat, test page.
and

our client say, I don't want show my face. so , we need to camera off and send other image, or something else.

how to do that?

Answer 1

There are many possible cases:

1. Setup audio-only connection
2. Setup audio/video connection however disable video-tracks
3. Setup audio/video connection however change video-mLine's attribute "sendrecv" to "inactive"
4. Setup audio/video connection; keep sending video however on target user's side, either remove "src" or hide video-element or use invisible video element.

It seems that first options suits your needs.

Setting-up audio-only connection is as easy as:

1. Invoking getUserMedia with {audio:true} and adding MediaStream to peer connection.
2. While invoking createOffer/createAnswer methods; setting OfferToReceiveAudio:true however OfferToReceiveVideo:false - Remember, both are true by default.

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P.S. Audio-only connection still works if you set OfferToReceiveVideo:true.

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To share users' snapshot; obviously you can either use XMLHttpRequest/DB or WebSocket/etc. to exchange Data-URLs among users.

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It is possible to set poster of video-element; however make sure that you've not set src at the same time; otherwise poster will fail.