1 /* 2 * Copyright (C) 2011 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 androidx.media.filterfw; 18 19 import androidx.media.filterfw.BackingStore.Backing; 20 21 public class FrameValue extends Frame { 22 23 public Object getValue() { 24 Object result = mBackingStore.lockData(MODE_READ, BackingStore.ACCESS_OBJECT); 25 mBackingStore.unlock(); 26 return result; 27 } 28 29 public void setValue(Object value) { 30 Backing backing = mBackingStore.lockBacking(MODE_WRITE, BackingStore.ACCESS_OBJECT); 31 backing.setData(value); 32 mBackingStore.unlock(); 33 } 34 35 static FrameValue create(BackingStore backingStore) { 36 assertObjectBased(backingStore.getFrameType()); 37 return new FrameValue(backingStore); 38 } 39 40 FrameValue(BackingStore backingStore) { 41 super(backingStore); 42 } 43 44 static void assertObjectBased(FrameType type) { 45 if (type.getElementId() != FrameType.ELEMENT_OBJECT) { 46 throw new RuntimeException("Cannot access non-object based Frame as FrameValue!"); 47 } 48 } 49 } 50 51
