Type Alias: EwmaEstimatorOptions

type EwmaEstimatorOptions = object;

Defined in: EwmaEstimatorOptions.ts:6

Exponential Weighted Moving Average (EWMA) Estimator Options

Properties

defaultEstimate?

defaultEstimate?: number;

Defined in: EwmaEstimatorOptions.ts:13

The estimate, in bits per second, that getEstimate returns before the first sample. getEstimate also returns this value while the sampled bytes are below minTotalBytes.

Default Value

NaN

---

fastHalfLife

fastHalfLife: number;

Defined in: EwmaEstimatorOptions.ts:39

The half-life of the fast moving average, in seconds. Samples from the last fastHalfLife seconds have half of the weight in the estimate. shaka-player uses 2.

---

minBodySize?

minBodySize?: number;

Defined in: EwmaEstimatorOptions.ts:32

The smallest encodedBodySize, in bytes, that counts as a sample. A sample with an encodedBodySize of 0 never counts. The estimator ignores smaller responses, because the time to first byte dominates their duration. shaka-player uses 16000.

Default Value

0

---

minTotalBytes?

minTotalBytes?: number;

Defined in: EwmaEstimatorOptions.ts:22

The number of bytes to sample before getEstimate returns a measured estimate. Below this total, getEstimate returns defaultEstimate. shaka-player uses 128000.

Default Value

0

---

slowHalfLife

slowHalfLife: number;

Defined in: EwmaEstimatorOptions.ts:46

The half-life of the slow moving average, in seconds. Samples from the last slowHalfLife seconds have half of the weight in the estimate. shaka-player uses 5.