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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.media;
/**
* An AudioPatch describes a connection between audio sources and audio sinks.
* An audio source can be an output mix (playback AudioBus) or an input device (microphone).
* An audio sink can be an output device (speaker) or an input mix (capture AudioBus).
* An AudioPatch is created by AudioManager.createAudioPatch() and released by
* AudioManager.releaseAudioPatch()
* It contains the list of source and sink AudioPortConfig showing audio port configurations
* being connected.
* @hide
*/
public class AudioPatch {
private final AudioHandle mHandle;
private final AudioPortConfig[] mSources;
private final AudioPortConfig[] mSinks;
AudioPatch(AudioHandle patchHandle, AudioPortConfig[] sources, AudioPortConfig[] sinks) {
mHandle = patchHandle;
mSources = sources;
mSinks = sinks;
}
/**
* Retrieve the list of sources of this audio patch.
*/
public AudioPortConfig[] sources() {
return mSources;
}
/**
* Retreive the list of sinks of this audio patch.
*/
public AudioPortConfig[] sinks() {
return mSinks;
}
/**
* Get the system unique patch ID.
*/
public int id() {
return mHandle.id();
}
@Override
public String toString() {
StringBuilder s = new StringBuilder();
s.append("mHandle: ");
s.append(mHandle.toString());
s.append(" mSources: {");
for (AudioPortConfig source : mSources) {
s.append(source.toString());
s.append(", ");
}
s.append("} mSinks: {");
for (AudioPortConfig sink : mSinks) {
s.append(sink.toString());
s.append(", ");
}
s.append("}");
return s.toString();
}
}
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