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# helpdesks
steep-balloon-41261
12/08/2022, 12:34 PMThis message was deleted.
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acoustic-engineer-41666
12/08/2022, 10:32 PMwhat do you mean by “now a video stream is requested from local”? what process needs this video stream?
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witty-bear-90043
12/13/2022, 9:42 AMWe are developing a seminar application like streamyard. There will be videos, documents, etc. shares here.
witty-bear-90043
12/13/2022, 9:46 AMA little bit like a OBS
witty-bear-90043
12/13/2022, 9:48 AMIt will select video from your computer and start streaming.
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acoustic-engineer-41666
12/13/2022, 3:27 PMYou want your app to stream a saved video file that the user selects from their computer?
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witty-bear-90043
12/14/2022, 12:34 PMYes
witty-bear-90043
12/16/2022, 10:46 AMPlease help
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polite-kilobyte-67570
12/16/2022, 10:56 AMhi Gökhan!
there’s currently no built-in support in the client-sdk-js to make this happen.
You can work around it though by using the captureStream API and capture the mediastream directly from a local video element.
Then you can manually publish your track. In case you are only interested in the video it would be with
localParticipant.publishTrack(myCapturedStream.getVideoTracks()[0])w
witty-bear-90043
12/16/2022, 11:00 AMThank you
witty-bear-90043
12/26/2022, 12:31 AMHow to attach audio from video?
localParticipant.publishTrack function returned LocalTrackPublication.
Since the sid in LocalTrackPublication and the sid in RemoteTrackPublication did not match, I could not match the audioTrack.
Copy code
const track = await livekit_room.localParticipant.publishTrack(stream.getVideoTracks()[0])
const trackAudio = await livekit_room.localParticipant.publishTrack(stream.getAudioTracks()[0])
// Send source info with socket
addSourceFromStream(
track.track,
trackAudio.track, TrackType.Video,
screenShareTitle,
track.trackSid, screenShareTitle, livekit_room.localParticipant.identity,
true, 0, videoElement);5 Views