1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.camera.one.v2.commands; 18 19 import android.hardware.camera2.CameraAccessException; 20 21 import com.android.camera.one.v2.camera2proxy.CameraCaptureSessionClosedException; 22 import com.android.camera.one.v2.core.FrameServer; 23 import com.android.camera.one.v2.core.RequestBuilder; 24 import com.android.camera.one.v2.core.ResourceAcquisitionFailedException; 25 26 import java.util.Arrays; 27 28 /** 29 * Sends repeating preview requests to a {@link FrameServer}. 30 */ 31 public class PreviewCommand implements CameraCommand { 32 private final FrameServer mFrameServer; 33 private final RequestBuilder.Factory mBuilderFactory; 34 private final int mRequestType; 35 36 /** 37 * Constructs a Preview. Note that it is the responsibility of the 38 * {@link RequestBuilder.Factory} to attach the relevant 39 * {@link com.android.camera.one.v2.core.CaptureStream}s, such as the 40 * viewfinder surface. 41 */ 42 public PreviewCommand(FrameServer frameServer, RequestBuilder.Factory builder, 43 int requestType) { 44 mFrameServer = frameServer; 45 mBuilderFactory = builder; 46 mRequestType = requestType; 47 } 48 49 public void run() throws InterruptedException, CameraAccessException, 50 CameraCaptureSessionClosedException, ResourceAcquisitionFailedException { 51 try (FrameServer.Session session = mFrameServer.createExclusiveSession()) { 52 RequestBuilder photoRequest = mBuilderFactory.create(mRequestType); 53 session.submitRequest(Arrays.asList(photoRequest.build()), 54 FrameServer.RequestType.REPEATING); 55 } 56 } 57 } 58
