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/*
* Copyright (C) 2017 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 com.android.media.tests;
import com.android.ddmlib.CollectingOutputReceiver;
import com.android.tradefed.device.DeviceNotAvailableException;
import com.android.tradefed.device.ITestDevice;
import com.android.tradefed.log.LogUtil.CLog;
import java.util.concurrent.TimeUnit;
/** Class to provide audio level utility functions for a test device */
public class AudioLevelUtility {
public static int extractDeviceHeadsetLevelFromAdbShell(ITestDevice device)
throws DeviceNotAvailableException {
final String ADB_SHELL_DUMPSYS_AUDIO = "dumpsys audio";
final String STREAM_MUSIC = "- STREAM_MUSIC:";
final String HEADSET = "(headset): ";
final CollectingOutputReceiver receiver = new CollectingOutputReceiver();
device.executeShellCommand(
ADB_SHELL_DUMPSYS_AUDIO, receiver, 300, TimeUnit.MILLISECONDS, 1);
final String shellOutput = receiver.getOutput();
if (shellOutput == null || shellOutput.isEmpty()) {
return -1;
}
int audioLevel = -1;
int pos = shellOutput.indexOf(STREAM_MUSIC);
if (pos != -1) {
pos = shellOutput.indexOf(HEADSET, pos);
if (pos != -1) {
final int start = pos + HEADSET.length();
final int stop = shellOutput.indexOf(",", start);
if (stop != -1) {
final String audioLevelStr = shellOutput.substring(start, stop);
try {
audioLevel = Integer.parseInt(audioLevelStr);
} catch (final NumberFormatException e) {
CLog.e(e.getMessage());
audioLevel = 1;
}
}
}
}
return audioLevel;
}
}
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