VideoFrame class

Configurations of the video frame.

Note that the buffer provides a pointer to a pointer. This interface cannot modify the pointer of the buffer, but it can modify the content of the buffer.

Annotations

• @JsonSerializable.new(explicitToJson: true, includeIfNull: false)

Properties

alphaBuffer → Uint8List?

The alpha channel data output by using portrait segmentation algorithm. This data matches the size of the video frame, with each pixel value ranging from 0,255, where 0 represents the background and 255 represents the foreground (portrait). By setting this parameter, you can render the video background into various effects, such as transparent, solid color, image, video, etc. In custom video rendering scenarios, ensure that both the video frame and alphaBuffer are of the Full Range type; other types may cause abnormal alpha data rendering. Make sure that alphaBuffer is exactly the same size as the video frame (width × height), otherwise it may cause the app to crash.

final

alphaStitchMode → AlphaStitchMode?

When the video frame contains alpha channel data, it represents the relative position of alphaBuffer and the video frame. See AlphaStitchMode.

final

avsyncType → int?

Reserved for future use.

final

colorSpace → ColorSpace?

By default, the color space properties of video frames will apply the Full Range and BT.709 standard configurations. You can configure the settings according your needs for custom video capturing and rendering.

final

hashCode → int

The hash code for this object.

no setter, inherited

height → int?

The height of the video, in pixels.

final

matrix → List<double>?

This parameter only applies to video data in Texture format. Incoming 4 × 4 transformational matrix. The typical value is a unit matrix.

final

metadataBuffer → Uint8List?

This parameter only applies to video data in Texture format. The MetaData buffer. The default value is NULL.

final

metadataSize → int?

This parameter only applies to video data in Texture format. The MetaData size. The default value is 0.

final

metaInfo → VideoFrameMetaInfo?

The meta information in the video frame. To use this parameter, contact.

final

renderTimeMs → int?

The Unix timestamp (ms) when the video frame is rendered. This timestamp can be used to guide the rendering of the video frame. This parameter is required.

final

rotation → int?

The clockwise rotation of the video frame before rendering. Supported values include 0, 90, 180, and 270 degrees.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

textureId → int?

This parameter only applies to video data in Texture format. Texture ID.

final

type → VideoPixelFormat?

The pixel format. See VideoPixelFormat.

final

uBuffer → Uint8List?

For YUV data, the pointer to the U buffer; for RGBA data, the value is 0.

final

uStride → int?

For YUV data, the line span of the U buffer; for RGBA data, the value is 0. When dealing with video data, it is necessary to process the offset between each line of pixel data based on this parameter, otherwise it may result in image distortion.

final

vBuffer → Uint8List?

For YUV data, the pointer to the V buffer; for RGBA data, the value is 0.

final

vStride → int?

For YUV data, the line span of the V buffer; for RGBA data, the value is 0. When dealing with video data, it is necessary to process the offset between each line of pixel data based on this parameter, otherwise it may result in image distortion.

final

width → int?

The width of the video, in pixels.

final

yBuffer → Uint8List?

For YUV data, the pointer to the Y buffer; for RGBA data, the data buffer.

final

yStride → int?

For YUV data, the line span of the Y buffer; for RGBA data, the total data length. When dealing with video data, it is necessary to process the offset between each line of pixel data based on this parameter, otherwise it may result in image distortion.

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toJson() → Map<String, dynamic>

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited