hlsConfigs.js

/*
HLS.js media player fine tuning configurations applied during stream view initialisation.
For parameter detail see:
https://github.com/video-dev/hls.js/blob/master/docs/API.md#fine-tuning

Some tuning has been applied to improve latency, adjust these according to fragment duration.
*/

// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: MIT-0

var hlsConfig = {
  autoStartLoad: true,
  startPosition: -1,
  debug: false,
  capLevelOnFPSDrop: false,
  capLevelToPlayerSize: false,
  defaultAudioCodec: undefined,
  initialLiveManifestSize: 1,
  maxBufferLength: 30,
  maxMaxBufferLength: 600,
  backBufferLength: Infinity,
  maxBufferSize: 60 * 1000 * 1000,
  maxBufferHole: 0.5,
  highBufferWatchdogPeriod: 2,
  nudgeOffset: 0.1,
  nudgeMaxRetry: 3,
  maxFragLookUpTolerance: 0.25, 
  liveSyncDuration: undefined,            // Duration in seconds, don't use with DurationCount params below
  liveMaxLatencyDuration: undefined,      // Duration in seconds, don't use with DurationCount params below
  liveSyncDurationCount: 2,               // Customised from default to optimise latency
  liveMaxLatencyDurationCount: 3,         // Customised from default to optimise latency
  liveDurationInfinity: false,
  enableWorker: true,
  enableSoftwareAES: true,
  manifestLoadingTimeOut: 10000,
  manifestLoadingMaxRetry: 1,
  manifestLoadingRetryDelay: 1000,
  manifestLoadingMaxRetryTimeout: 64000,
  startLevel: undefined,
  levelLoadingTimeOut: 10000,
  levelLoadingMaxRetry: 4,
  levelLoadingRetryDelay: 1000,
  levelLoadingMaxRetryTimeout: 64000,
  fragLoadingTimeOut: 20000,
  fragLoadingMaxRetry: 6,
  fragLoadingRetryDelay: 1000,
  fragLoadingMaxRetryTimeout: 64000,
  startFragPrefetch: false,
  testBandwidth: true,
  progressive: false,
  lowLatencyMode: true,
  fpsDroppedMonitoringPeriod: 5000,
  fpsDroppedMonitoringThreshold: 0.2,
  appendErrorMaxRetry: 3,
  // loader: customLoader,
  // fLoader: customFragmentLoader,
  // pLoader: customPlaylistLoader,
  // xhrSetup: XMLHttpRequestSetupCallback,
  // fetchSetup: FetchSetupCallback,
  // abrController: AbrController,
  // bufferController: BufferController,
  // capLevelController: CapLevelController,
  // fpsController: FPSController,
  // timelineController: TimelineController,
  enableWebVTT: true,
  enableIMSC1: true,
  enableCEA708Captions: true,
  stretchShortVideoTrack: false,
  maxAudioFramesDrift: 1,
  forceKeyFrameOnDiscontinuity: true,
  abrEwmaFastLive: 3.0,
  abrEwmaSlowLive: 9.0,
  abrEwmaFastVoD: 3.0,
  abrEwmaSlowVoD: 9.0,
  abrEwmaDefaultEstimate: 500000,
  abrBandWidthFactor: 0.95,
  abrBandWidthUpFactor: 0.7,
  abrMaxWithRealBitrate: false,
  maxStarvationDelay: 4,
  maxLoadingDelay: 4,
  minAutoBitrate: 0,
  emeEnabled: false,
  widevineLicenseUrl: undefined,
  licenseXhrSetup: undefined,
  drmSystemOptions: {},
  // requestMediaKeySystemAccessFunc: requestMediaKeySystemAccess,
};

export { hlsConfig };