1/*
2 * Copyright (C) 2015 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.media.tests;
18
19import android.content.Context;
20import android.media.AudioAttributes;
21import android.media.AudioFormat;
22import android.media.AudioManager;
23import android.media.AudioPatch;
24import android.media.AudioPort;
25import android.media.audiopolicy.AudioMix;
26import android.media.audiopolicy.AudioMixingRule;
27import android.media.audiopolicy.AudioPolicy;
28import android.os.Handler;
29import android.os.Looper;
30import android.test.AndroidTestCase;
31import android.test.suitebuilder.annotation.MediumTest;
32import android.util.Log;
33
34import java.util.ArrayList;
35import java.util.concurrent.Semaphore;
36import java.util.concurrent.TimeUnit;
37
38@MediumTest
39public class AudioPolicyTest extends AndroidTestCase {
40    private static final String TAG = AudioPolicyTest.class.getSimpleName();
41    private static final long WAIT_TIMEOUT_MS = 1000;
42    private AudioManager mAudioManager;
43    private Handler mHandler;
44
45    @Override
46    protected void setUp() throws Exception {
47        super.setUp();
48        mHandler = new Handler(Looper.getMainLooper());
49        final Semaphore mWaitSemaphore = new Semaphore(0);
50        mHandler.post(new Runnable() {
51            @Override
52            public void run() {
53                mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
54                mWaitSemaphore.release();
55            }
56        });
57        assertTrue(mWaitSemaphore.tryAcquire(WAIT_TIMEOUT_MS, TimeUnit.MILLISECONDS));
58    }
59
60    public void testAudioPorts() throws Exception {
61        AudioPortUpdateListener listener = new AudioPortUpdateListener();
62        mAudioManager.registerAudioPortUpdateListener(listener);
63        ArrayList<AudioPort> initialPorts = dumpAudioPorts("initial state");
64        AudioMix mediaMix = createAudioMix(AudioAttributes.CONTENT_TYPE_UNKNOWN,
65                AudioAttributes.CONTENT_TYPE_MUSIC);
66        AudioPolicy audioPolicy = new AudioPolicy.Builder(getContext())
67                .addMix(mediaMix)
68                .setLooper(Looper.getMainLooper())
69                .build();
70        mAudioManager.registerAudioPolicy(audioPolicy);
71        dumpAudioPorts("policy set");
72        mAudioManager.unregisterAudioPolicyAsync(audioPolicy);
73        ArrayList<AudioPort> afterUnregisterPorts = dumpAudioPorts("policy unset");
74        mAudioManager.unregisterAudioPortUpdateListener(listener);
75    }
76
77    private ArrayList<AudioPort> dumpAudioPorts(String msg) {
78        Log.i(TAG, msg + ", dump audio ports");
79        ArrayList<AudioPort> ports = new ArrayList<>();
80        assertEquals(AudioManager.SUCCESS, AudioManager.listAudioPorts(ports));
81        for (AudioPort port : ports) {
82            Log.i(TAG, "port:" + port.toString() + " name:" + port.name());
83        }
84        return ports;
85    }
86
87    private static AudioMix createAudioMix(int contentType, int usage) {
88        AudioAttributes.Builder audioAttributesBuilder = new AudioAttributes.Builder();
89        audioAttributesBuilder.setContentType(contentType).setUsage(usage);
90        AudioAttributes audioAttributes = audioAttributesBuilder.build();
91        AudioFormat audioFormat = new AudioFormat.Builder()
92                .setEncoding(AudioFormat.ENCODING_PCM_16BIT)
93                .setChannelMask(AudioFormat.CHANNEL_OUT_STEREO)
94                .setSampleRate(48000)
95                .build();
96        AudioMixingRule audioMixingRule = new AudioMixingRule.Builder()
97                .addRule(audioAttributes, AudioMixingRule.RULE_MATCH_ATTRIBUTE_USAGE)
98                .build();
99        return new AudioMix.Builder(audioMixingRule)
100                .setFormat(audioFormat)
101                .build();
102    }
103
104    private class AudioPortUpdateListener implements AudioManager.OnAudioPortUpdateListener {
105
106        @Override
107        public void onAudioPortListUpdate(AudioPort[] portList) {
108            Log.i(TAG, "onAudioPortListUpdate");
109            for (AudioPort port : portList) {
110                Log.i(TAG, "port:" + port.toString() + " name:" + port.name());
111            }
112        }
113
114        @Override
115        public void onAudioPatchListUpdate(AudioPatch[] patchList) {
116            Log.i(TAG, "onAudioPortListUpdate");
117            for (AudioPatch patch : patchList) {
118                Log.i(TAG, "patch:" + patch.toString());
119            }
120        }
121
122        @Override
123        public void onServiceDied() {
124        }
125    }
126}
127