Java 如何在Camera2 Api自定义视频录制应用程序中添加徽标/水印

如何在Camera2 Api自定义视频录制应用程序中添加徽标/水印 我想在左上角的自定义相机应用程序中添加徽标/水印

private fun recordSession() {

    setupMediaRecorder()

    val surfaceTexture = previewTextureView.surfaceTexture
    surfaceTexture.setDefaultBufferSize(MAX_WIDTH, MAX_HEIGHT)
    val textureSurface = Surface(surfaceTexture)
    val recordSurface = mediaRecorder.surface

    captureRequestBuilder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_RECORD)
    captureRequestBuilder.addTarget(textureSurface)
    captureRequestBuilder.addTarget(recordSurface)

    val surfaces = ArrayList<Surface>().apply {
        add(textureSurface)
        add(recordSurface)
    }

    cameraDevice.createCaptureSession(surfaces, object : CameraCaptureSession.StateCallback() {
        override fun onConfigureFailed(p0: CameraCaptureSession) {
            Log.d("Error", "Failed Session")
        }

        override fun onConfigured(session: CameraCaptureSession) {
            if (session != null) {
                captureSession = session
                captureRequestBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE)
                captureSession.setRepeatingRequest(captureRequestBuilder.build(), null, null)
                isRecording = true
                mediaRecorder.start()
            }
        }

    }, backgroundHandler)
}

private-fun-recordSession（）{
setupMediaRecorder（）
val surfacettexture=previewTextureView.surfacettexture
surfaceTexture.setDefaultBufferSize（最大宽度、最大高度）
val textureSurface=曲面（surfaceTexture）
val recordSurface=mediaRecorder.surface
captureRequestBuilder=cameraDevice.createCaptureRequest（cameraDevice.TEMPLATE\u记录）
captureRequestBuilder.addTarget（textureSurface）
captureRequestBuilder.addTarget（recordSurface）
val surfaces=ArrayList（）。应用{
添加（纹理表面）
添加（记录表面）
}
cameraDevice.createCaptureSession（曲面，对象：CameraCaptureSession.StateCallback（）{
覆盖已配置的乐趣（p0:CameraCaptureSession）{
Log.d（“错误”，“会话失败”）
}
覆盖未配置的乐趣（会话：CameraCaptureSession）{
if（会话！=null）{
captureSession=会话
captureRequestBuilder.set（CaptureRequest.CONTROL\u AF\u MODE，CaptureRequest.CONTROL\u AF\u MODE\u CONTINUOUS\u PICTURE）
captureSession.setRepeatingRequest（captureRequestBuilder.build（），null，null）
isRecording=true
mediaRecorder.start（）
}
}
}，backgroundHandler）
}