93 lines
2.5 KiB
Java
93 lines
2.5 KiB
Java
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/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.media;
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import android.compat.annotation.UnsupportedAppUsage;
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/**
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* The AudioGainConfig is used by APIs setting or getting values on a given gain
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* controller. It contains a valid configuration (value, channels...) for a gain controller
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* exposed by an audio port.
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* @see AudioGain
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* @see AudioPort
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* @hide
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*/
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public class AudioGainConfig {
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AudioGain mGain;
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@UnsupportedAppUsage
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private final int mIndex;
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@UnsupportedAppUsage
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private final int mMode;
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@UnsupportedAppUsage
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private final int mChannelMask;
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@UnsupportedAppUsage
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private final int mValues[];
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@UnsupportedAppUsage
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private final int mRampDurationMs;
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@UnsupportedAppUsage
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AudioGainConfig(int index, AudioGain gain, int mode, int channelMask,
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int[] values, int rampDurationMs) {
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mIndex = index;
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mGain = gain;
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mMode = mode;
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mChannelMask = channelMask;
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mValues = values;
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mRampDurationMs = rampDurationMs;
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}
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/**
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* get the index of the parent gain.
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* frameworks use only.
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*/
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int index() {
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return mIndex;
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}
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/**
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* Bit field indicating requested modes of operation. See {@link AudioGain#MODE_JOINT},
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* {@link AudioGain#MODE_CHANNELS}, {@link AudioGain#MODE_RAMP}
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*/
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public int mode() {
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return mMode;
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}
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/**
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* Indicates for which channels the gain is set.
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* See {@link AudioFormat#CHANNEL_OUT_STEREO}, {@link AudioFormat#CHANNEL_OUT_MONO} ...
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*/
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public int channelMask() {
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return mChannelMask;
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}
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/**
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* Gain values for each channel in the order of bits set in
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* channelMask() from LSB to MSB
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*/
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public int[] values() {
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return mValues;
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}
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/**
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* Ramp duration in milliseconds. N/A if mode() does not
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* specify MODE_RAMP.
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*/
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public int rampDurationMs() {
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return mRampDurationMs;
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}
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}
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