HarmonyOS 鸿蒙Next camera 获取预览数据

创建了预览数据 output
this.mAnalysisImageReceiver = image.createImageReceiver(size.width, size.height, image.ImageFormat.JPEG, 4)
this.mAnalysisImageReceiver.on(‘imageArrival’, async () => {
let latestImage: image.Image | null = null
try {
if (this.mAnalysisImageReceiver) {
latestImage = await this.mAnalysisImageReceiver.readLatestImage()
if (latestImage) {
let data = await latestImage.getComponent(image.ComponentType.JPEG)
await latestImage.release()
this.mCallback?.onImageAnalysis(data)
}
}
} catch (e) {
CameraLog.e(TAG, ‘prepareImageCaptureReader’, e)
} finally {
latestImage?.release()
}
})
let previewSurfaceId: string = await this.mAnalysisImageReceiver.getReceivingSurfaceId()
CameraLog.d(TAG, prepareImageAnalysisReader: size = ${size} id = ${previewSurfaceId})
this.mAnalysisOutput = this.getCameraManager().createPreviewOutput({
format: camera.CameraFormat.CAMERA_FORMAT_JPEG,
size: size
}, previewSurfaceId)

添加进 session 中
if (this.mAnalysisOutput) {
captureSession.addOutput(this.mAnalysisOutput)
}
 

问题场景描述：

1.设置image.ImageFormat.JPEG格式，获取到的数据转换 pixelmap 时报错：Create PixelMap error

2.文档上标记的image.createImageReceiver支持格式：图像格式，取值为ImageFormat常量（目前仅支持 ImageFormat:JPEG），请问如何能获取到 NV21 或者 YUV420P 格式的数据？