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Stream from your Web browser to YouTube Live. No plugins or native apps required!
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README.adoc |
= Streamana == Description Streamana is a Web page which streams your camera and microphone to YouTube Live (or any other HLS or DASH receiver). It uses https://github.com/davedoesdev/webm-muxer.js[webm-muxer.js] and https://github.com/davedoesdev/ffmpeg.js[ffmpeg.js]. == Demo You can see it in action https://rawgit-now.netlify.app/davedoesdev/streamana/publish/site/streamana.html[here]. Use Chrome 95 or later. . Get your ingestion URL from https://studio.youtube.com[YouTube Studio]. .. Click _CREATE_ and then select _Go Live_ from the drop-down menu. .. Under _Select stream key_, select _Create new stream key_. .. Give your key a name. .. You must select _HLS_ as the streaming protocol. Note: YouTube DASH ingestion is only available by using the Youtube API. See https://developers.google.com/youtube/v3/live/guides/encoding-with-dash#url-structure[here] for more details. .. Click _CREATE_. .. Make sure the key you created is selected. .. Click _COPY_ next to _Stream URL_. . Paste the URL into the _Ingestion URL_ box in Streamana. . Click _Live_. ** If you want to see what's happening under the hood, open developer tools (F12). . To end the stream, click _Live_ again. You can also change various options: * Mute and unmute your microphone by clicking on the microphone symbol. * Hide and show your camera by clicking on the camera symbol. * Under the drop-down menu (top-left): ** Change the camera resolution. ** Convert your camera's video to greyscale. ** Lock the camera to portrait mode (where available, e.g. mobile phones). ** Zoom the camera to fill the page. ** Select a different version of https://github.com/davedoesdev/ffmpeg.js[ffmpeg.js] to perform the HLS or DASH encoding. == Customisation You can change the look and feel of Streamana by editing link:site/streamana.html[] and link:site/streamana.css[]. The camera video is passed through a WebGL fragment shader in link:site/shader.js[] so you can change this to add video effects or overlays. The shader already handles resizing and rotating the video in `main()`. The optional greyscale conversion is in the `tpix()` function. The page's functionality is defined in link:site/streamana.js[] and link:site/streamer.js[]. link:site/streamer.js[] exports a class, `Streamer`, which does the heavy lifting: * The constructor takes the following arguments: ** The https://developer.mozilla.org/en-US/docs/Web/API/MediaStream[`MediaStream`] containing your video and audio tracks. Note that link:site/streamana.js[] supplies blank video when the camera is hidden and silent audio when the microphone is muted. ** The ingestion URL. ** The URL of `ffmpeg-worker-hls.js` or `ffmpeg-worker-dash.js` in https://github.com/davedoesdev/ffmpeg.js[ffmpeg.js]. This allows your application (or the end user if required) to supply its own version, in accordance with LGPL. ** The desired video frame rate. ** Whether the video is rotated. * Call the `async start()` function to start streaming. * Call the `end()` function to stop streaming. `Streamer` extends from https://developer.mozilla.org/en-US/docs/Web/API/EventTarget[`EventTarget`] and dispatches the following events: * `start` when streaming has started. * `update`, dispatched frame rate times a second. link:site/streamana.js[] reacts to this event by refreshing the WebGL canvas from the camera. * `exit` when streaming has stopped. * `error` if an error occurs. == Licence Streamana is licensed under the terms of the link:LICENCE[MIT licence]. Note that https://github.com/davedoesdev/ffmpeg.js[ffmpeg.js] is licensed under LGPL. Streamana runs it inside a Web Worker and communicates with it via message passing. The end user can replace the version used by changing the URL in the user interface. Note also that the https://github.com/davedoesdev/ffmpeg.js[ffmpeg.js] HLS and DASH distributions contain no H.264 or MP4 code. All encoding is done by the browser using https://developer.mozilla.org/en-US/docs/Web/API/MediaRecorder[`MediaRecorder`] or https://www.w3.org/TR/webcodecs/[WebCodecs].