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Dockerfile (370, 2021-02-02)
bin (0, 2021-02-02)
certs (0, 2021-02-02)
docker-compose.yaml (239, 2021-02-02)
pkg (0, 2021-02-02)
src (0, 2021-02-02)
src\github.com (0, 2021-02-02)
src\github.com\bic4907 (0, 2021-02-02)
src\github.com\bic4907\webrtc (0, 2021-02-02)
src\github.com\bic4907\webrtc\common (0, 2021-02-02)
src\github.com\bic4907\webrtc\common\chunk.go (192, 2021-02-02)
src\github.com\bic4907\webrtc\go.mod (257, 2021-02-02)
src\github.com\bic4907\webrtc\go.sum (31994, 2021-02-02)
src\github.com\bic4907\webrtc\main.go (290, 2021-02-02)
src\github.com\bic4907\webrtc\videos (0, 2021-02-02)
src\github.com\bic4907\webrtc\web (0, 2021-02-02)
src\github.com\bic4907\webrtc\web\hub.go (4962, 2021-02-02)
src\github.com\bic4907\webrtc\web\service.go (5273, 2021-02-02)
src\github.com\bic4907\webrtc\web\src (0, 2021-02-02)
src\github.com\bic4907\webrtc\web\src\index.html (2234, 2021-02-02)
src\github.com\bic4907\webrtc\web\src\static (0, 2021-02-02)
src\github.com\bic4907\webrtc\web\src\static\script.js (12704, 2021-02-02)
src\github.com\bic4907\webrtc\web\src\static\style.css (1068, 2021-02-02)
src\github.com\bic4907\webrtc\web\util.go (165, 2021-02-02)
src\github.com\bic4907\webrtc\wrtc (0, 2021-02-02)
src\github.com\bic4907\webrtc\wrtc\broadcaster.go (3981, 2021-02-02)
src\github.com\bic4907\webrtc\wrtc\recorder.go (3719, 2021-02-02)
src\github.com\bic4907\webrtc\wrtc\subscriber.go (2456, 2021-02-02)
src\github.com\bic4907\webrtc\wrtc\util.go (546, 2021-02-02)

# WebRTC Broadcasting Recording This repository is not a peer-to-peer example. The server totally cares signaling and broadcasting ## Features - Multiple Broadcaster, multiple subscribers architecture (1:N SFU) - Subscribers listen events `Broadcaster Connected`, `Broadcaster Disconnected` - Recording Broadcaster's Tracks as `.mp4` using ffmpeg - Go-lang SFU server, web-based demostration client - Signaling (Offer, Answer) using gorilla websocket ## How To Run ### Dockerfile You need to install Docker (Windows, Linux, MacOS) on your computer. ``` cd WebRTC-Broadcast-Recording docker-compose up ``` You also change exposed port using docker-compose's port-forwarding option. Our Dockerfile will automatically install go-lang and FFmpeg on docker image. ### Go compiling If you didn't install FFmpeg, you need to install your own version of FFmpeg binaries. On your command line, `ffmpeg` command should be available. FFmpeg is needed to record your video and audio track as a MPEG4 media file. ``` cd src/github.com/bic4907/webrtc go run main.go ``` ## Architecture Our repository is Server (Go)-Client (Javascript) architecture. WIP ### Hub Events Some events regarding broadcasting service. Please check out [hub.go](https://github.com/src/github.com/bic4907/webrtc/web/hub.go) source code. ```Register``` A broadcaster event when a broadcaster joined to the server. The broadcaster offers to begin audio/video track and negotiate with server. When broadcaster begin to send RTC packet, `BroadcastBroadcasterEntered` method will be executed. This method will notify to users that already connected to server via a websocket event. Then, clients and server will re-negotiate to make new media track. When the broadcaster starts to send RTC packets, the server will record video/audio using ffmpeg. ```Unregister``` A broadcaster event when a broadcaster exited from the server. This event will execute `BroadcastBroadcasterExited` method, and the server will make user to remove tracks from player. ```Subscribe``` A subscriber event when a receiver joined to the server. The hub will find whether the broadcaster is existing and offer video/audio tracks to user via websocket. If the broadcaster not joined yet, the server do not anything and the user will be wait for the broadcaster join. ```Unsubscribe``` A subscriber event when a receiver exited from the server. The hub will remove user from a room's user list. ```Broadcast``` A broadcaster event when a broadcaster sends a RTC packet. The hub publishes this packet to the users where the broadcaster have opened. ## Author - [In-chang Baek](https://github.comhttps://github.com/bic4907) ### Special thanks - [JooYoung Lim](https://github.comhttps://github.com/DevRockstarZ) ## References - [pion/webrtc](https://github.comhttps://github.com/pion/webrtc) - [pion/example-webrtc-applications](https://github.comhttps://github.com/pion/example-webrtc-applications) - [gorilla/websocket](https://github.comhttps://github.com/gorilla/websocket) Those are most useful materials for you understanding webrtc sigaling paradism. Keep in your mind that websocket communication is just one of lots of signaling methods.

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