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H264Layer Class

Definition

Describes the settings to be used when encoding the input video into a desired output bitrate layer with the H.264 video codec.

public class H264Layer : Azure.ResourceManager.Media.Models.VideoLayer
type H264Layer = class
    inherit VideoLayer
Public Class H264Layer
Inherits VideoLayer
Inheritance

Constructors

H264Layer(Int32)

Initializes a new instance of H264Layer.

Properties

BFrames

The number of B-frames to be used when encoding this layer. If not specified, the encoder chooses an appropriate number based on the video profile and level.

(Inherited from VideoLayer)
Bitrate

The average bitrate in bits per second at which to encode the input video when generating this layer. This is a required field.

(Inherited from VideoLayer)
BufferWindow

The VBV buffer window length. The value should be in ISO 8601 format. The value should be in the range [0.1-100] seconds. The default is 5 seconds (for example, PT5S).

ConstantRateFactor

The value of CRF to be used when encoding this layer. This setting takes effect when RateControlMode of video codec is set at CRF mode. The range of CRF value is between 0 and 51, where lower values would result in better quality, at the expense of higher file sizes. Higher values mean more compression, but at some point quality degradation will be noticed. Default value is 23.

EntropyMode

The entropy mode to be used for this layer. If not specified, the encoder chooses the mode that is appropriate for the profile and level.

FrameRate

The frame rate (in frames per second) at which to encode this layer. The value can be in the form of M/N where M and N are integers (For example, 30000/1001), or in the form of a number (For example, 30, or 29.97). The encoder enforces constraints on allowed frame rates based on the profile and level. If it is not specified, the encoder will use the same frame rate as the input video.

(Inherited from VideoLayer)
Height

The height of the output video for this layer. The value can be absolute (in pixels) or relative (in percentage). For example 50% means the output video has half as many pixels in height as the input.

(Inherited from MediaLayerBase)
Label

The alphanumeric label for this layer, which can be used in multiplexing different video and audio layers, or in naming the output file.

(Inherited from MediaLayerBase)
Level

We currently support Level up to 6.2. The value can be Auto, or a number that matches the H.264 profile. If not specified, the default is Auto, which lets the encoder choose the Level that is appropriate for this layer.

MaxBitrate

The maximum bitrate (in bits per second), at which the VBV buffer should be assumed to refill. If not specified, defaults to the same value as bitrate.

(Inherited from VideoLayer)
Profile

We currently support Baseline, Main, High, High422, High444. Default is Auto.

ReferenceFrames

The number of reference frames to be used when encoding this layer. If not specified, the encoder determines an appropriate number based on the encoder complexity setting.

Slices

The number of slices to be used when encoding this layer. If not specified, default is zero, which means that encoder will use a single slice for each frame.

(Inherited from VideoLayer)
UseAdaptiveBFrame

Whether or not adaptive B-frames are to be used when encoding this layer. If not specified, the encoder will turn it on whenever the video profile permits its use.

(Inherited from VideoLayer)
Width

The width of the output video for this layer. The value can be absolute (in pixels) or relative (in percentage). For example 50% means the output video has half as many pixels in width as the input.

(Inherited from MediaLayerBase)

Applies to