The buffer does not build up when playing live streams for long periods of time.

Have you read the Tutorials? yes

Have you read the FAQ and checked for duplicate open issues? yes

If the question is related to FairPlay, have you read the tutorial?

yes

What version of Shaka Player are you using? 4.7.11

What browser and OS are you using? window chrome

Please ask your question

When playing a live stream for 12 hours, m3u8, mp4v, and mp4a requests and responses are received from the network tab.

But video. readyState is 1(HAVE_METADATA), not paused, but not playing.

When I checked the history with getStats(), I confirmed that the buffering status continued.

When checking with getBufferedInfo(), the cause seems to be that the audio buffer does not exist. However, I am receiving video, audio playlist, video, and audio fragment normally.

After remaining in the browser for about 5 minutes, the buffering state suddenly ended and playback resumed normally.

Is there a way to keep it always playing?

Attach the config.

{
  "drm": {
    "retryParameters": {
      "maxAttempts": 2,
      "baseDelay": 100,
      "backoffFactor": 2,
      "fuzzFactor": 0.5,
      "timeout": 30000,
      "stallTimeout": 5000,
      "connectionTimeout": 10000
    },
    "servers": {},
    "clearKeys": {},
    "advanced": {},
    "delayLicenseRequestUntilPlayed": false,
    "persistentSessionOnlinePlayback": false,
    "persistentSessionsMetadata": [],
    "logLicenseExchange": false,
    "updateExpirationTime": 1,
    "preferredKeySystems": [],
    "keySystemsMapping": {},
    "parseInbandPsshEnabled": false,
    "minHdcpVersion": "",
    "ignoreDuplicateInitData": true
  },
  "manifest": {
    "retryParameters": {
      "maxAttempts": 2,
      "baseDelay": 1000,
      "backoffFactor": 2,
      "fuzzFactor": 0.5,
      "timeout": 5000,
      "stallTimeout": 5000,
      "connectionTimeout": 10000
    },
    "availabilityWindowOverride": null,
    "disableAudio": false,
    "disableVideo": false,
    "disableText": false,
    "disableThumbnails": false,
    "defaultPresentationDelay": 0,
    "segmentRelativeVttTiming": false,
    "raiseFatalErrorOnManifestUpdateRequestFailure": false,
    "dash": {
      "clockSyncUri": "",
      "ignoreDrmInfo": false,
      "disableXlinkProcessing": false,
      "xlinkFailGracefully": false,
      "ignoreMinBufferTime": false,
      "autoCorrectDrift": true,
      "initialSegmentLimit": 1000,
      "ignoreSuggestedPresentationDelay": false,
      "ignoreEmptyAdaptationSet": false,
      "ignoreMaxSegmentDuration": false,
      "keySystemsByURI": {
        "urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b": "org.w3.clearkey",
        "urn:uuid:e2719d58-a985-b3c9-781a-b030af78d30e": "org.w3.clearkey",
        "urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed": "com.widevine.alpha",
        "urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95": "com.microsoft.playready",
        "urn:uuid:79f0049a-4098-8642-ab92-e65be0885f95": "com.microsoft.playready",
        "urn:uuid:f239e769-efa3-4850-9c16-a903c6932efb": "com.adobe.primetime"
      },
      "sequenceMode": false,
      "enableAudioGroups": false,
      "multiTypeVariantsAllowed": true
    },
    "hls": {
      "ignoreTextStreamFailures": false,
      "ignoreImageStreamFailures": false,
      "defaultAudioCodec": "mp4a.40.2",
      "defaultVideoCodec": "avc1.42E01E",
      "ignoreManifestProgramDateTime": false,
      "mediaPlaylistFullMimeType": "video/mp2t; codecs=\"avc1.42E01E, mp4a.40.2\"",
      "useSafariBehaviorForLive": true,
      "liveSegmentsDelay": 1,
      "sequenceMode": true,
      "ignoreManifestTimestampsInSegmentsMode": false,
      "disableCodecGuessing": false,
      "allowLowLatencyByteRangeOptimization": true
    },
    "mss": {
      "sequenceMode": false,
      "keySystemsBySystemId": {
        "9a04f079-9840-4286-ab92-e65be0885f95": "com.microsoft.playready",
        "79f0049a-4098-8642-ab92-e65be0885f95": "com.microsoft.playready"
      }
    }
  },
  "streaming": {
    "retryParameters": {
      "maxAttempts": 2,
      "baseDelay": 1000,
      "backoffFactor": 2,
      "fuzzFactor": 0.5,
      "timeout": 5000,
      "stallTimeout": 5000,
      "connectionTimeout": 10000
    },
    "rebufferingGoal": 5,
    "bufferingGoal": 30,
    "bufferBehind": 30,
    "ignoreTextStreamFailures": false,
    "alwaysStreamText": false,
    "startAtSegmentBoundary": true,
    "gapDetectionThreshold": 0.5,
    "gapJumpTimerTime": 0.25,
    "durationBackoff": 1,
    "safeSeekOffset": 5,
    "stallEnabled": true,
    "stallThreshold": 1,
    "stallSkip": 0.1,
    "useNativeHlsOnSafari": true,
    "inaccurateManifestTolerance": 0,
    "lowLatencyMode": true,
    "autoLowLatencyMode": false,
    "forceHTTPS": false,
    "preferNativeHls": false,
    "updateIntervalSeconds": 0.5,
    "dispatchAllEmsgBoxes": false,
    "observeQualityChanges": false,
    "maxDisabledTime": 30,
    "parsePrftBox": false,
    "segmentPrefetchLimit": 2,
    "liveSync": false,
    "liveSyncMaxLatency": 2,
    "liveSyncPlaybackRate": 1.1,
    "liveSyncMinLatency": 0,
    "liveSyncMinPlaybackRate": 1,
    "allowMediaSourceRecoveries": true,
    "minTimeBetweenRecoveries": 5
  },
  "mediaSource": {
    "codecSwitchingStrategy": "smooth",
    "sourceBufferExtraFeatures": "",
    "forceTransmux": false,
    "insertFakeEncryptionInInit": true
  },
  "offline": {
    "usePersistentLicense": true,
    "numberOfParallelDownloads": 5
  },
  "abr": {
    "enabled": false,
    "useNetworkInformation": true,
    "defaultBandwidthEstimate": 1000000,
    "switchInterval": 8,
    "bandwidthUpgradeTarget": 0.85,
    "bandwidthDowngradeTarget": 0.95,
    "restrictions": {
      "minWidth": 0,
      "maxWidth": null,
      "minHeight": 0,
      "maxHeight": null,
      "minPixels": 0,
      "maxPixels": null,
      "minFrameRate": 0,
      "maxFrameRate": null,
      "minBandwidth": 0,
      "maxBandwidth": null
    },
    "advanced": {
      "minTotalBytes": 128000,
      "minBytes": 16000,
      "fastHalfLife": 2,
      "slowHalfLife": 5
    },
    "restrictToElementSize": false,
    "restrictToScreenSize": false,
    "ignoreDevicePixelRatio": false,
    "clearBufferSwitch": false,
    "safeMarginSwitch": 0
  },
  "autoShowText": 3,
  "preferredAudioLanguage": "",
  "preferredAudioLabel": "",
  "preferredTextLanguage": "",
  "preferredVariantRole": "",
  "preferredTextRole": "",
  "preferredAudioChannelCount": 2,
  "preferredVideoHdrLevel": "AUTO",
  "preferredVideoLayout": "",
  "preferredVideoLabel": "",
  "preferredVideoCodecs": [],
  "preferredAudioCodecs": [],
  "preferForcedSubs": false,
  "preferSpatialAudio": false,
  "preferredDecodingAttributes": [],
  "restrictions": {
    "minWidth": 0,
    "maxWidth": null,
    "minHeight": 0,
    "maxHeight": null,
    "minPixels": 0,
    "maxPixels": null,
    "minFrameRate": 0,
    "maxFrameRate": null,
    "minBandwidth": 0,
    "maxBandwidth": null
  },
  "playRangeStart": 0,
  "playRangeEnd": null,
  "cmcd": {
    "enabled": false,
    "sessionId": "",
    "contentId": "",
    "useHeaders": false
  },
  "cmsd": {
    "enabled": true,
    "applyMaximumSuggestedBitrate": true,
    "estimatedThroughputWeightRatio": 0.5
  },
  "lcevc": {
    "enabled": false,
    "dynamicPerformanceScaling": true,
    "logLevel": 0,
    "drawLogo": false
  },
  "ads": {
    "customPlayheadTracker": false
  }
}

shaka-project / shaka-player

The buffer does not build up when playing live streams for long periods of time. #6603