Class: shaka.device.AbstractDevice

Constructor

new AbstractDevice()

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Members

abstractDeviceType_ :shaka.util.Lazy<!shaka.device.IDevice.DeviceType>

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browserEngine_ :shaka.util.Lazy<shaka.device.IDevice.BrowserEngine>

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Methods

adjustConfig(config) → {shaka.extern.PlayerConfiguration}

Adjusts player configuration with device specific tweaks. Changes are done in-place and the same object is returned.
Parameters:
Name Type Description
config shaka.extern.PlayerConfiguration
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Type
shaka.extern.PlayerConfiguration

createMediaKeysWhenCheckingSupport() → {boolean}

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Type
boolean

detectMaxHardwareResolution() → {Promise<shaka.extern.Resolution>}

Detect the maximum resolution that the platform's hardware can handle.
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Type
Promise<shaka.extern.Resolution>

disableHEVCSupport() → {boolean}

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Type
boolean

getBrowserEngine() → {shaka.device.IDevice.BrowserEngine}

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Type
shaka.device.IDevice.BrowserEngine

getChromeVersion_() → {number}

Return the chromium browser version
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Returns:
Type
number

getDeviceType() → {shaka.device.IDevice.DeviceType}

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Returns:
Type
shaka.device.IDevice.DeviceType

getHdrLevel(preferHLG) → {string}

Check the current HDR level supported by the screen.
Parameters:
Name Type Description
preferHLG boolean
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string

insertEncryptionDataBeforeClear() → {boolean}

Indicates should the encryption data be inserted before or after the clear data in the init segment.
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boolean

misreportAC3UsingDrm() → {boolean}

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boolean

misreportsSupportForPersistentLicenses() → {boolean}

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boolean

needWaitForEncryptedEvent(keySystem) → {boolean}

Returns true if the platform needs to wait for the encrypted event in order to initialize CDM correctly.
Parameters:
Name Type Description
keySystem string
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boolean

rejectCodecs() → {Array<string>}

Lists all codecs that should be rejected by MediaSource.
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Array<string>

requiresClearAndEncryptedInitSegments() → {boolean}

Returns true if the platform requires both clear & encryption information in clear init segments. For such platforms, MediaSourceEngine will attempt to work around a lack of such info by inserting fake information into initialization segments. It is called only when requiresEncryptionInfoInAllInitSegments() is also true and works as the extension of it.
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boolean

requiresDvvcWorkaround(stream) → {boolean}

Returns true if the platform requires the dvvC box content workaround. Dolby box removal is needed on LG devices with HDR10 support that do not support dolby vision. LG has fixes starting with Webos23, which is Chrome version 94.
Parameters:
Name Type Description
stream shaka.extern.Stream
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boolean

requiresEC3InitSegments() → {boolean}

Returns true if the platform requires AC-3 signalling in init segments to be replaced with EC-3 signalling. For such platforms, MediaSourceEngine will attempt to work around it by inserting fake EC-3 signalling into initialization segments.
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boolean

requiresEncryptionInfoInAllInitSegments(keySystemnullable, contentTypenullable) → {boolean}

Returns true if the platform requires encryption information in all init segments. For such platforms, MediaSourceEngine will attempt to work around a lack of such info by inserting fake encryption information into initialization segments.
Parameters:
Name Type Attributes Description
keySystem string <nullable>
contentType string <nullable>
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boolean

requiresTfhdFix(contentType) → {boolean}

Parameters:
Name Type Description
contentType string
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Returns:
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boolean

returnLittleEndianUsingPlayReady() → {boolean}

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boolean

seekDelay() → {number}

On some platforms, the act of seeking can take a significant amount of time, so we need to delay a seek.
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Type
number

shouldAvoidUseTextDecoderEncoder() → {boolean}

Indicates whether or not to use window.TextDecoder and window.TextEncoder even if they are available
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Type
boolean

shouldOverrideDolbyVisionCodecs() → {boolean}

Checks should Dolby Vision codecs be overridden to their H.264 and H.265 equivalents.
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boolean

supportsAirPlay() → {boolean}

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boolean

supportsCbcsWithoutEncryptionSchemeSupport() → {boolean}

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boolean

supportsContainerChangeType() → {boolean}

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boolean

supportsEncryptionSchemePolyfill() → {boolean}

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Type
boolean

supportsMediaCapabilities() → {boolean}

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boolean

supportsMediaSource() → {boolean}

Check if the current platform supports media source. We assume that if the current platform supports media source, then we can use media source as per its design.
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boolean

supportsMediaType(mimeType) → {boolean}

Returns true if the media type is supported natively by the platform.
Parameters:
Name Type Description
mimeType string
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Type
boolean

supportsOfflineStorage() → {boolean}

Checks does the platform supports offline storage by IDB.
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boolean

supportsSequenceMode() → {boolean}

Returns true if the platform supports SourceBuffer "sequence mode".
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boolean

supportsServerCertificate() → {boolean}

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boolean

supportsSmoothCodecSwitching() → {boolean}

Returns if codec switching SMOOTH is known reliable device support. Some devices are known not to support SourceBuffer.changeType well. These devices should use the reload strategy. If a device reports that it supports but supports it unreliably it should be disallowed in this method.
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boolean

supportStandardVP9Checking() → {boolean}

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boolean

toString()

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