_getBitrates: function() {
                    var bitrates,
                        currentBitrate,
                        availableBitrates;

                    try {
                        bitrates = media.getBitrates();
                    } catch (e) {
                        bitrates = false;
                    }

                    if (bitrates) {
                        currentBitrate = bitrates.currentBitrate;

                        // For cases that device do not support availableBitrates
                        if (!bitrates.availableBitrates || bitrates.availableBitrates.length === 0) {
                            availableBitrates = [500000, 850000, 1300000, 1900000, 2600000, 2700000, 3500000, 6000000, 9000000];
                        } else {
                            availableBitrates = bitrates.availableBitrates;
                        }
                    }

                    return {
                        currentBitrate: currentBitrate,
                        availableBitrates: availableBitrates
                    };