MediaRecorder - How to play chunk/blob of video wh

Question

I currently have a MediaStream which is being recorded using MediaRecorder. At the end of the recording after recorder.stop(), it produce a Blob and I am able to play that video back. My goal is to play not the entire video at the end, but play a chunk while recording. For the moment, a chunk is not playable while recording is not ended.

How can i do that using javascript? The final objective is to send a chunk by websocket that is playable even if recording is in action.

I am not able to bring new solutions. Can anyone help or at least explain me the things ?

What I've tried was

                navigator.mediaDevices.getUserMedia().then(function(media_stream) {
                    var recorder = new MediaRecorder(media_stream);

                    recorder.ondataavailable = event => {
                        //How to play each chunk without waiting for recorder.stop() ???
                        //event.data represent the data of a chunk (i.e. a blob)
                    };

                    recorder.start(1000);
                });

Answer 1

you have to use RequestData for ondataavailable to fire