Function readBlobAsBuffer

src/js/webm-writer2.js:257–267

(blob)

    // Returns a promise that converts the blob to an ArrayBuffer
    function readBlobAsBuffer(blob) {
      return new Promise(function(resolve, reject) {
        let reader = new FileReader();

        reader.addEventListener('loadend', function() {
          resolve(reader.result);
        });

        reader.readAsArrayBuffer(blob);
      });
    }

    function convertToUint8Array(thing) {
      return new Promise(function(resolve, reject) {