![]() ![]() Voila, well the JavaScript part is done □. Here also, we can add more specific constraints as per the need.Ĭonstraints passed to capture media can be more specific like resolution, echo, cursor instead of true/false. We merged the different streams to create a new stream and passed it to the handleRecord function. So, we need to merge different streams here if need an audio background for the screen record. Screen Recorder: Amongst all, this is the most interesting, as the display stream is provided by getDisplayMedia, and the audio is provided by getUserMedia. Also, we can pass additional parameters to the constraints like audio: After calling this, we will get a prompt asking for permission in the browser and after confirmation, we can access those resources. Here, we will use mediaDevices.getUserMedia to get access to resources on the user's machine. ![]() Later, URL is created for the blob object and can be downloaded from the browser.Īudio Recorder: Going forward, we will write a function to invoke the audio recording that further calls handleRecord with the required parameters. Then, add events for ondataavailable (when data comes in stream) and onstop (when the stream stops).Īfter, chunk is available, it is pushed in the array and after the stop event, all the chunks are put together to form a () specifying the mimeType. Recording Handler: At first, we will write a function that intakes the stream and mimeType, collect the data chunks and then enable downloading the file on the local machine from the browser.įirst, create a MediaRecorder instance with the input stream. MediaDevices: The MediaDevices interface provides access to connected media input devices like cameras and microphones, as well as screen-sharing ref: MDN MediaRecorder: The MediaRecorder interface of the MediaStream API provides functionality to easily record media ref: MDN To proceed further, you should be acquainted with some terms: So, I planned to develop a simple recorder that supports Audio, Video, and Screen Recording available at Īnd if you like this article, don't miss to clap and follow. Javascript MediaRecorder Project to Build Screen Recorder and Download it as MP4 Video File
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