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Class QualityAttribute

This gives a suggestion for the quality of the encoding as an integer value. The intention of the quality attribute for video is to specify a non-default trade-off between frame-rate and still-image quality. For video, the value is in the range 0 to 10, with the following suggested meaning:

10 - the best still-image quality the compression scheme can give. 5 - the default behaviour given no quality suggestion. 0 - the worst still-image quality the codec designer thinks is still usable.

It is a media-level attribute, and it is not dependent on charset.

Hierarchy

  • Attribute
    • QualityAttribute

Index

Constructors

Properties

Methods

Constructors

constructor

  • Initializes a new instance of the fm.icelink.sdp.qualityAttribute class.

    Parameters

    • quality: number

      The suggested quality of the encoding as an integer value from 0-10.

    Returns QualityAttribute

  • Initializes a new instance of the fm.icelink.sdp.qualityAttribute class.

    Returns QualityAttribute

Properties

Private _quality

_quality: number
internal

Methods

getAttributeType

  • getAttributeType(): AttributeType
  • Gets this Attribute's Type.

    Returns AttributeType

Protected getAttributeValue

  • getAttributeValue(): string
  • Gets the internal value of the attribute.

    Returns string

getQuality

  • getQuality(): number
  • Gets the suggested quality of the encoding as an integer value from 0-10.

    Returns number

getTypeString

  • getTypeString(): string

  • Returns string

setAttributeType

  • setAttributeType(value: AttributeType): void
  • Sets this Attribute's Type.

    Parameters

    • value: AttributeType

    Returns void

Private setQuality

  • setQuality(value: number): void
  • internal

    Parameters

    • value: number

    Returns void

toString

  • toString(): string
  • Converts this instance to a string.

    Returns string

Static createAttribute

  • createAttribute(name: string, value: string): Attribute
  • Creates an attribute.

    Parameters

    • name: string

      The name.

    • value: string

      The value.

    Returns Attribute

Static fromAttributeValue

  • fromAttributeValue(value: string): QualityAttribute
  • Initializes a new instance of the fm.icelink.sdp.qualityAttribute class.

    Parameters

    • value: string

      The attribute value.

    Returns QualityAttribute

Static getTypeName

  • getTypeName(type: Type): string
  • Gets the name of the attribute type.

    Parameters

    • type: Type

      The attribute type.

    Returns string

Static isMediaLevel

  • isMediaLevel(type: Type): boolean
  • Determines whether the type applies to media streams.

    Parameters

    • type: Type

      The type.

    Returns boolean

Static isSessionLevel

  • isSessionLevel(type: Type): boolean
  • Determines whether the type applies to sessions.

    Parameters

    • type: Type

      The type.

    Returns boolean

Static parse

  • parse(s: string): Attribute
  • Creates an fm.icelink.sdp.connectionData instance from a string.

    Parameters

    • s: string

      The string to parse.

    Returns Attribute