1 /** 2 * Copyright (C) 2024 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 17 package android.media.cujcommon.cts; 18 19 import static org.junit.Assert.assertEquals; 20 21 import android.net.Uri; 22 import android.os.Bundle; 23 import android.view.WindowManager; 24 25 import androidx.appcompat.app.AppCompatActivity; 26 import androidx.media3.common.MediaItem; 27 import androidx.media3.common.TrackSelectionParameters; 28 import androidx.media3.common.TrackSelectionParameters.AudioOffloadPreferences; 29 import androidx.media3.exoplayer.ExoPlayer; 30 import androidx.media3.exoplayer.ExoPlayer.AudioOffloadListener; 31 import androidx.media3.ui.PlayerView; 32 33 import java.util.ArrayList; 34 import java.util.Collections; 35 import java.util.List; 36 37 public class AudioOffloadTestActivity extends AppCompatActivity { 38 39 protected PlayerView mExoplayerView; 40 protected ExoPlayer mPlayer; 41 protected static List<String> sVideoUrls = new ArrayList<>(); 42 protected PlayerListener mPlayerListener; 43 protected boolean mIsSleepingForAudioOffloadEnabled; 44 protected boolean mIsAudioOffloadEnabled; 45 46 @Override onCreate(Bundle savedInstanceState)47 protected void onCreate(Bundle savedInstanceState) { 48 super.onCreate(savedInstanceState); 49 setContentView(R.layout.activity_main_audio_offload); 50 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 51 buildPlayer(); 52 } 53 54 /** 55 * Get audio offload listener 56 */ getAudioOffloadListener()57 private AudioOffloadListener getAudioOffloadListener() { 58 return new AudioOffloadListener() { 59 @Override 60 public void onSleepingForOffloadChanged(boolean isSleepingForOffload) { 61 mIsSleepingForAudioOffloadEnabled = true; 62 } 63 64 @Override 65 public void onOffloadedPlayback(boolean isOffloadedPlayback) { 66 if (!mIsAudioOffloadEnabled && isOffloadedPlayback) { 67 mIsAudioOffloadEnabled = true; 68 } 69 if (mIsAudioOffloadEnabled && !isOffloadedPlayback) { 70 assertEquals("Audio offload is disabled before the playback is finished. " 71 + "ClipDuration= " + mPlayer.getDuration() + " currentPosition= " 72 + mPlayer.getCurrentPosition(), (float) mPlayer.getDuration(), 73 (float) mPlayer.getCurrentPosition(), 5000); 74 } 75 } 76 }; 77 } 78 79 /** 80 * Build the player 81 */ 82 protected void buildPlayer() { 83 AudioOffloadListener listener = getAudioOffloadListener(); 84 CustomRenderersFactory customRenderersFactory = new CustomRenderersFactory(this, listener); 85 mPlayer = new ExoPlayer.Builder(this, customRenderersFactory).build(); 86 mPlayer.addAudioOffloadListener(listener); 87 // Enable audio offloading 88 AudioOffloadPreferences audioOffloadPreferences = new AudioOffloadPreferences.Builder() 89 .setAudioOffloadMode(AudioOffloadPreferences.AUDIO_OFFLOAD_MODE_ENABLED) 90 .build(); 91 TrackSelectionParameters currentParameters = mPlayer.getTrackSelectionParameters(); 92 TrackSelectionParameters newParameters = currentParameters.buildUpon() 93 .setAudioOffloadPreferences(audioOffloadPreferences).build(); 94 mPlayer.setTrackSelectionParameters(newParameters); 95 mExoplayerView = findViewById(R.id.audioOffloadExoplayer); 96 mExoplayerView.setPlayer(mPlayer); 97 } 98 99 /** 100 * Prepare input list and add it to player's playlist. 101 */ 102 public void prepareMediaItems(List<String> urls) { 103 sVideoUrls = urls != null ? Collections.unmodifiableList(urls) : null; 104 if (sVideoUrls == null) { 105 return; 106 } 107 for (String videoUrl : sVideoUrls) { 108 MediaItem mediaItem = MediaItem.fromUri(Uri.parse(videoUrl)); 109 mPlayer.addMediaItem(mediaItem); 110 } 111 } 112 113 /** 114 * Prepare and play the player. 115 */ 116 @Override 117 protected void onStart() { 118 super.onStart(); 119 mPlayer.prepare(); 120 mPlayer.play(); 121 } 122 123 /** 124 * Stop the player. 125 */ 126 @Override 127 protected void onStop() { 128 mPlayer.stop(); 129 super.onStop(); 130 } 131 132 /** 133 * Release the player and destroy the activity 134 */ 135 @Override 136 protected void onDestroy() { 137 super.onDestroy(); 138 mPlayer.release(); 139 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 140 } 141 142 /** 143 * Register a listener to receive events from the player. 144 * 145 * <p>This method can be called from any thread. 146 * 147 * @param listener The listener to register. 148 */ 149 public void addPlayerListener(PlayerListener listener) { 150 mPlayer.addListener(listener); 151 this.mPlayerListener = listener; 152 } 153 154 /** 155 * Unregister a listener registered through addPlayerListener(Listener). The listener will no 156 * longer receive events. 157 */ 158 public void removePlayerListener() { 159 mPlayer.removeListener(this.mPlayerListener); 160 } 161 } 162