kontainer-js/IsoBmff/Box/MP4AudioSampleEntry.js

A media file format generator/parser that exposes a React-like API.

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = undefined;

var _slicedToArray2 = require('babel-runtime/helpers/slicedToArray');

var _slicedToArray3 = _interopRequireDefault(_slicedToArray2);

var _getPrototypeOf = require('babel-runtime/core-js/object/get-prototype-of');

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _get2 = require('babel-runtime/helpers/get');

var _get3 = _interopRequireDefault(_get2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _Box = require('./Box');

var _Box2 = _interopRequireDefault(_Box);

var _AudioSampleEntry2 = require('./AudioSampleEntry');

var _AudioSampleEntry3 = _interopRequireDefault(_AudioSampleEntry2);

var _PropTypes = require('../../core/PropTypes');

var _PropTypes2 = _interopRequireDefault(_PropTypes);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var MP4AudioSampleEntry = function (_AudioSampleEntry) {
  (0, _inherits3.default)(MP4AudioSampleEntry, _AudioSampleEntry);

  function MP4AudioSampleEntry(props) {
    (0, _classCallCheck3.default)(this, MP4AudioSampleEntry);
    return (0, _possibleConstructorReturn3.default)(this, (0, _getPrototypeOf2.default)(MP4AudioSampleEntry).call(this, MP4AudioSampleEntry.COMPACT_NAME, props));
  }

  (0, _createClass3.default)(MP4AudioSampleEntry, [{
    key: 'serialize',
    value: function serialize(buffer) {
      var offset = arguments.length <= 1 || arguments[1] === undefined ? 0 : arguments[1];

      //console.log('--- MP4AudioSampleEntry.serialize enter.');
      var base = offset;

      base += (0, _get3.default)((0, _getPrototypeOf2.default)(MP4AudioSampleEntry.prototype), 'serialize', this).call(this, buffer, base);
      (0, _get3.default)((0, _getPrototypeOf2.default)(MP4AudioSampleEntry.prototype), 'setSize', this).call(this, base - offset, buffer, offset);

      //console.log(`--- MP4AudioSampleEntry.serialize exit. size=${this.size}`);
      return this.size;
    }
  }], [{
    key: 'parse',
    value: function parse(buffer) {
      var offset = arguments.length <= 1 || arguments[1] === undefined ? 0 : arguments[1];

      var base = offset,
          readBytesNum = void 0,
          props = void 0;

      var _AudioSampleEntry$par = _AudioSampleEntry3.default.parse(buffer, base);

      var _AudioSampleEntry$par2 = (0, _slicedToArray3.default)(_AudioSampleEntry$par, 2);

      readBytesNum = _AudioSampleEntry$par2[0];
      props = _AudioSampleEntry$par2[1];

      base += readBytesNum;

      return [base - offset, props];
    }
  }]);
  return MP4AudioSampleEntry;
}(_AudioSampleEntry3.default);

exports.default = MP4AudioSampleEntry;


MP4AudioSampleEntry.COMPACT_NAME = 'mp4a';

MP4AudioSampleEntry.propTypes = {
  dataReferenceIndex: _PropTypes2.default.number.isRequired,
  channelCount: _PropTypes2.default.oneOf([1, 2]),
  sampleSize: _PropTypes2.default.number,
  sampleRate: _PropTypes2.default.number
};

MP4AudioSampleEntry.defaultProps = {
  channelCount: 1, // mono
  sampleSize: 16,
  sampleRate: 44100
};

MP4AudioSampleEntry.spec = {
  container: 'stsd',
  quantity: _Box2.default.QUANTITY_ANY_NUMBER,
  mandatoryList: []
};