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
17package androidx.media.filterfw;
18
19import androidx.media.filterfw.BackingStore.Backing;
20
21public 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