DegradationPreference enum

带宽受限时的视频编码降级偏好。

Inheritance

• Object
• Enum
• DegradationPreference

Available extensions

• EnumName

Annotations

• @JsonEnum.new(alwaysCreate: true)

Values

maintainAuto → const DegradationPreference

-1：（默认）自动模式。SDK 会根据你设置的视频场景，自动选择 maintainFramerate、maintainBalanced 或 maintainResolution，以获得最优的综合质量体验 (QoE)。

maintainQuality → const DegradationPreference

0：带宽受限时，视频编码时优先降低视频帧率，维持分辨率不变。该降级偏好适用于画质优先的场景。 弃用：该枚举已废弃。请改用其他枚举。

maintainFramerate → const DegradationPreference

1：带宽受限时，视频编码时优先降低视频分辨率，维持视频帧率不变。该降级偏好适用于流畅性优先且允许画质降低的场景。

maintainBalanced → const DegradationPreference

2：带宽受限时，视频编码时同时降低视频帧率和视频分辨率。maintainBalanced 的降幅比 maintainQuality 和 maintainFramerate 降幅更低，适用于流畅性和画质均有限的场景。 本地发送的视频分辨率可能改变，远端用户需能处理这种情况，详见 onVideoSizeChanged 。

maintainResolution → const DegradationPreference

3: 带宽受限时，视频编码时优先降低视频帧率，维持分辨率保持不变。该降级偏好适用于画质优先的场景。

disabled → const DegradationPreference

@nodoc

Properties

hashCode → int

The hash code for this object.

no setter, inherited

index → int

A numeric identifier for the enumerated value.

no setter, inherited

name → String

Available on Enum, provided by the EnumName extension

The name of the enum value.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Constants

values → const List<DegradationPreference>

A constant List of the values in this enum, in order of their declaration.