@videopeer/segmenter/examples/custom-output-adapter.js

MP4 video file segmenter for MPEG-DASH usage, based on MP4Box

let Segmenter = require('segmenter.lib');

// create custom output adapter class
CustomOutput = function (config, segmenter) {
    // need to implement super constructor (typescript issue)
    this.config    = config;
    this.segmenter = segmenter;
};

// extends from AbstractOutputAdapter
CustomOutput.prototype = Segmenter.AbstractOutputAdapter.prototype;

// implement abstract methods
CustomOutput.prototype.doInit = function (options) {
    // do init stuff here. Here options is this adapter's options in segmenter.config.js file
    return Promise.resolve();
};
CustomOutput.prototype.doDispose = function () {
    // do dispose stuff here
    return Promise.resolve();
};
CustomOutput.prototype.handleInitSegment = function (data) {
    // store init segment somehow
    console.log('INIT SEGMENT', data.streamId, data.buffer);
    // you can emit debug messages, they will proxy to segmenter debug event
    this.emit('debug', 'Debug message');
    // you can emit error messages, they will proxy to segmenter error event
    // this.emit('error', 'Error message');
};
CustomOutput.prototype.handleMediaSegment = function (data) {
    // store media segment somehow
    console.log('MEDIA SEGMENT', data.streamId, data.segmentId, data.buffer);
};
CustomOutput.prototype.handleMPD = function (data) {
    // store MPD manifest somehow
    console.log('MPD MANIFEST');
};

// load config file
let config = require('/path/to/segmenter.config');

// build segmenter
let segmenter = Segmenter.SegmenterFactory.createFromConfig(config);

// register custom output adapter
Segmenter.OutputFactory.register('custom', CustomOutput);


// listen to useful events
segmenter.on('warn', (err) => {
    process.stderr.write(`${err}\n`);
});
segmenter.on('error', (err) => {
    throw err;
});
segmenter.on('debug', (msg) => {
    process.stdout.write(msg + '\n');
});
segmenter.on('end', () => {
    process.stdout.write(`no more data\n`);
    process.exit();
});


// init and start segmentation
segmenter.init().then(() => {
    segmenter.start();
}, err => {
    throw err;
});