Home | History | Annotate | Download | only in tests 
      1 /*
      2  * Copyright (C) 2017 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 package com.android.media.tests;
     17 
     18 import com.android.ddmlib.CollectingOutputReceiver;
     19 import com.android.tradefed.device.DeviceNotAvailableException;
     20 import com.android.tradefed.device.ITestDevice;
     21 import com.android.tradefed.log.LogUtil.CLog;
     22 
     23 import java.util.concurrent.TimeUnit;
     24 
     25 /** Class to provide audio level utility functions for a test device */
     26 public class AudioLevelUtility {
     27 
     28     public static int extractDeviceHeadsetLevelFromAdbShell(ITestDevice device)
     29             throws DeviceNotAvailableException {
     30 
     31         final String ADB_SHELL_DUMPSYS_AUDIO = "dumpsys audio";
     32         final String STREAM_MUSIC = "- STREAM_MUSIC:";
     33         final String HEADSET = "(headset): ";
     34 
     35         final CollectingOutputReceiver receiver = new CollectingOutputReceiver();
     36 
     37         device.executeShellCommand(
     38                 ADB_SHELL_DUMPSYS_AUDIO, receiver, 300, TimeUnit.MILLISECONDS, 1);
     39         final String shellOutput = receiver.getOutput();
     40         if (shellOutput == null || shellOutput.isEmpty()) {
     41             return -1;
     42         }
     43 
     44         int audioLevel = -1;
     45         int pos = shellOutput.indexOf(STREAM_MUSIC);
     46         if (pos != -1) {
     47             pos = shellOutput.indexOf(HEADSET, pos);
     48             if (pos != -1) {
     49                 final int start = pos + HEADSET.length();
     50                 final int stop = shellOutput.indexOf(",", start);
     51                 if (stop != -1) {
     52                     final String audioLevelStr = shellOutput.substring(start, stop);
     53                     try {
     54                         audioLevel = Integer.parseInt(audioLevelStr);
     55                     } catch (final NumberFormatException e) {
     56                         CLog.e(e.getMessage());
     57                         audioLevel = 1;
     58                     }
     59                 }
     60             }
     61         }
     62 
     63         return audioLevel;
     64     }
     65 }
     66