ImageSourceAdapter

The abstract class ImageSourceAdapter is an abstract class for implementing image fetching and delivering features.

Default implementations:

CameraEnhancer: Use the camera as the image source for scanning from the video input.

Definition

Assembly: dynamsoft-capture-vision-react-native

abstract class ImageSourceAdapter

Method	Description
`addImageToBuffer`	Adds an image to the internal buffer.
`clearBuffer`	Clears all images from the buffer.
`destroy`	Destroy native instance. This object is no longer available after destroy().
`getColourChannelUsageType`	Get the current usage type for color channels in images.
`getImageCount`	Get the current number of images in the buffer.
`getImageData`	Get a buffered image.
`getMaximumImageCount`	Get the maximum number of images that can be buffered.
`isBufferEmpty`	Determines whether the buffer is empty.
`setColourChannelUsageType`	Sets the usage type for color channels in images.
`setMaximumImageCount`	Sets the maximum number of images that can be buffered at any time.
`startFetching`	Start fetching images from the source to the Video Buffer of `ImageSourceAdapter`.
`stopFetching`	Stop fetching images from the source to the Video Buffer of `ImageSourceAdapter`.

Adds an image to the internal buffer.

addImageToBuffer(imageData: ImageData): void

Clears all images from the buffer.

clearBuffer(): Promise<void>

Destroy native instance. This object is no longer available after destroy().

destroy(): void

Get the current usage type for color channels in images.

getColourChannelUsageType(): Promise<EnumColourChannelUsageType>

Get the current number of images in the buffer.

getImageCount(): Promise<number>

Get a buffered image.

getImageData(): undefined | null | ImageData

Get the maximum number of images that can be buffered.

getMaximumImageCount(): Promise<number>

Determines whether the buffer is empty.

isBufferEmpty(): Promise<boolean>

Sets the usage type for color channels in images.

setColourChannelUsageType(type: EnumColourChannelUsageType): Promise<void>

Sets the maximum number of images that can be buffered at any time.

setMaximumImageCount(count: number): Promise<void>

Start fetching images from the source to the Video Buffer of ImageSourceAdapter.

startFetching(): void

Stop fetching images from the source to the Video Buffer of ImageSourceAdapter.

stopFetching(): void