1/*
2 * Copyright (C) 2020 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 android.hardware.audio.effect@7.0;
18
19import android.hardware.audio.common@7.0;
20import IEffect;
21
22interface IDownmixEffect extends IEffect {
23    enum Type : int32_t {
24        STRIP, // throw away the extra channels
25        FOLD   // mix the extra channels with FL/FR
26    };
27
28    /**
29     * Sets the current downmix preset.
30     */
31    setType(Type preset) generates (Result retval);
32
33    /**
34     * Gets the current downmix preset.
35     */
36    getType() generates (Result retval, Type preset);
37};
38