Function MultiStreamRecorder

src/__tests__/MediaStreamRecorder.js:145–303

(arrayOfMediaStreams, options)

// MultiStreamRecorder.js

function MultiStreamRecorder(arrayOfMediaStreams, options) {
    arrayOfMediaStreams = arrayOfMediaStreams || [];

    if (arrayOfMediaStreams instanceof MediaStream) {
        arrayOfMediaStreams = [arrayOfMediaStreams];
    }

    var self = this;

    var mixer;
    var mediaRecorder;

    options = options || {
        mimeType: 'video/webm',
        video: {
            width: 360,
            height: 240
        }
    };

    if (!options.frameInterval) {
        options.frameInterval = 10;
    }

    if (!options.video) {
        options.video = {};
    }

    if (!options.video.width) {
        options.video.width = 360;
    }

    if (!options.video.height) {
        options.video.height = 240;
    }

    this.start = function(timeSlice) {
        // github/muaz-khan/MultiStreamsMixer
        mixer = new MultiStreamsMixer(arrayOfMediaStreams);

        if (getVideoTracks().length) {
            mixer.frameInterval = options.frameInterval || 10;
            mixer.width = options.video.width || 360;
            mixer.height = options.video.height || 240;
            mixer.startDrawingFrames();
        }

        if (typeof self.previewStream === 'function') {
            self.previewStream(mixer.getMixedStream());
        }

        // record using MediaRecorder API
        mediaRecorder = new MediaStreamRecorder(mixer.getMixedStream());

        for (var prop in self) {
            if (typeof self[prop] !== 'function') {
                mediaRecorder[prop] = self[prop];
            }