AudioTrack.java revision a701da8ebabb3d63ac57b7718055698abb21804a
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.media; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.ref.WeakReference; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.IllegalArgumentException; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.IllegalStateException; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Looper; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Message; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.media.AudioManager; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.Log; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The AudioTrack class manages and plays a single audio resource for Java applications. 325c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * It allows streaming PCM audio buffers to the audio hardware for playback. This is 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * achieved by "pushing" the data to the AudioTrack object using one of the 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #write(byte[], int, int)} and {@link #write(short[], int, int)} methods. 3588bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * 36ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * <p>An AudioTrack instance can operate under two modes: static or streaming.<br> 37ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * In Streaming mode, the application writes a continuous stream of data to the AudioTrack, using 3888bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * one of the {@code write()} methods. These are blocking and return when the data has been 3988bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * transferred from the Java layer to the native layer and queued for playback. The streaming 4088bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * mode is most useful when playing blocks of audio data that for instance are: 4188bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <ul> 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <li>too big to fit in memory because of the duration of the sound to play,</li> 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <li>too big to fit in memory because of the characteristics of the audio data 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (high sampling rate, bits per sample ...)</li> 46ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * <li>received or generated while previously queued audio is playing.</li> 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </ul> 4888bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * 495c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * The static mode should be chosen when dealing with short sounds that fit in memory and 5088bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * that need to be played with the smallest latency possible. The static mode will 5188bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * therefore be preferred for UI and game sounds that are played often, and with the 5288bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * smallest overhead possible. 5388bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Upon creation, an AudioTrack object initializes its associated audio buffer. 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The size of this buffer, specified during the construction, determines how long an AudioTrack 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * can play before running out of data.<br> 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * For an AudioTrack using the static mode, this size is the maximum size of the sound that can 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be played from it.<br> 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * For the streaming mode, data will be written to the hardware in chunks of 605c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * sizes less than or equal to the total buffer size. 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class AudioTrack 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //--------------------------------------------------------- 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Constants 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------------- 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Minimum value for a channel volume */ 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final float VOLUME_MIN = 0.0f; 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Maximum value for a channel volume */ 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final float VOLUME_MAX = 1.0f; 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 72ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi /** indicates AudioTrack state is stopped */ 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PLAYSTATE_STOPPED = 1; // matches SL_PLAYSTATE_STOPPED 74ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi /** indicates AudioTrack state is paused */ 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PLAYSTATE_PAUSED = 2; // matches SL_PLAYSTATE_PAUSED 76ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi /** indicates AudioTrack state is playing */ 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PLAYSTATE_PLAYING = 3; // matches SL_PLAYSTATE_PLAYING 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 795c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten // keep these values in sync with android_media_AudioTrack.cpp 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creation mode where audio data is transferred from Java to the native layer 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * only once before the audio starts playing. 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int MODE_STATIC = 0; 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creation mode where audio data is streamed from Java to the native layer 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * as the audio is playing. 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int MODE_STREAM = 1; 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 92ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * State of an AudioTrack that was not successfully initialized upon creation. 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int STATE_UNINITIALIZED = 0; 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * State of an AudioTrack that is ready to be used. 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int STATE_INITIALIZED = 1; 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * State of a successfully initialized AudioTrack that uses static data, 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * but that hasn't received that data yet. 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int STATE_NO_STATIC_DATA = 2; 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Error codes: 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to keep in sync with frameworks/base/core/jni/android_media_AudioTrack.cpp 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Denotes a successful operation. 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int SUCCESS = 0; 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Denotes a generic operation failure. 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ERROR = -1; 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Denotes a failure due to the use of an invalid value. 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ERROR_BAD_VALUE = -2; 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Denotes a failure due to the improper use of a method. 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ERROR_INVALID_OPERATION = -3; 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ERROR_NATIVESETUP_AUDIOSYSTEM = -16; 125a553c25b33c99b345cf1c8688f8df0ed8df14e5aEric Laurent private static final int ERROR_NATIVESETUP_INVALIDCHANNELMASK = -17; 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ERROR_NATIVESETUP_INVALIDFORMAT = -18; 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ERROR_NATIVESETUP_INVALIDSTREAMTYPE = -19; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int ERROR_NATIVESETUP_NATIVEINITFAILED = -20; 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Events: 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to keep in sync with frameworks/base/include/media/AudioTrack.h 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 133ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * Event id denotes when playback head has reached a previously set marker. 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int NATIVE_EVENT_MARKER = 3; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 137ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * Event id denotes when previously set update period has elapsed during playback. 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int NATIVE_EVENT_NEW_POS = 4; 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final static String TAG = "AudioTrack-Java"; 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------------------------------------------------------------------- 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Member variables 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------------- 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 148ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * Indicates the state of the AudioTrack instance. 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mState = STATE_UNINITIALIZED; 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 152ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * Indicates the play state of the AudioTrack instance. 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mPlayState = PLAYSTATE_STOPPED; 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Lock to make sure mPlayState updates are reflecting the actual state of the object. 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Object mPlayStateLock = new Object(); 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1604df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * The listener the AudioTrack notifies when the playback position reaches a marker 1614df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * or for periodic updates during the progression of the playback head. 1624df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * @see #setPlaybackPositionUpdateListener(OnPlaybackPositionUpdateListener) 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1644df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project private OnPlaybackPositionUpdateListener mPositionListener = null; 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 166ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * Lock to protect event listener updates against event notifications. 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1684df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project private final Object mPositionListenerLock = new Object(); 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Size of the native audio buffer. 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mNativeBufferSizeInBytes = 0; 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 174ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * Handler for marker events coming from the native code. 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1764df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project private NativeEventHandlerDelegate mEventHandlerDelegate = null; 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 178ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * Looper associated with the thread that creates the AudioTrack instance. 179105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project */ 180105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project private Looper mInitializationLooper = null; 181105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project /** 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The audio data sampling rate in Hz. 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1845c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten private int mSampleRate; // initialized by all constructors 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1863026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent * The number of audio output channels (1 is mono, 2 is stereo). 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mChannelCount = 1; 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1903026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent * The audio channel mask. 1913026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent */ 1923026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent private int mChannels = AudioFormat.CHANNEL_OUT_MONO; 1933026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent 1943026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent /** 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The type of the audio stream to play. See 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link AudioManager#STREAM_VOICE_CALL}, {@link AudioManager#STREAM_SYSTEM}, 1975c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * {@link AudioManager#STREAM_RING}, {@link AudioManager#STREAM_MUSIC}, 198b282e08ab641d4fc74d0324b7a0ce30926638dd5Glenn Kasten * {@link AudioManager#STREAM_ALARM}, {@link AudioManager#STREAM_NOTIFICATION}, and 199b282e08ab641d4fc74d0324b7a0ce30926638dd5Glenn Kasten * {@link AudioManager#STREAM_DTMF}. 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mStreamType = AudioManager.STREAM_MUSIC; 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The way audio is consumed by the hardware, streaming or static. 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mDataLoadMode = MODE_STREAM; 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 207ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * The current audio channel configuration. 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 209a553c25b33c99b345cf1c8688f8df0ed8df14e5aEric Laurent private int mChannelConfiguration = AudioFormat.CHANNEL_OUT_MONO; 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The encoding of the audio samples. 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see AudioFormat#ENCODING_PCM_8BIT 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see AudioFormat#ENCODING_PCM_16BIT 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mAudioFormat = AudioFormat.ENCODING_PCM_16BIT; 216619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent /** 217619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * Audio session ID 218619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent */ 219619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent private int mSessionId = 0; 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------------------------- 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Used exclusively by native code 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------------- 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 226ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * Accessed by native methods: provides access to C++ AudioTrack object. 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @SuppressWarnings("unused") 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mNativeTrackInJavaObj; 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Accessed by native methods: provides access to the JNI data (i.e. resources used by 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the native AudioTrack object, but not stored in it). 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @SuppressWarnings("unused") 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mJniData; 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------------------------------------------------------------------- 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Constructor, Finalize 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------------- 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Class constructor. 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param streamType the type of the audio stream. See 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link AudioManager#STREAM_VOICE_CALL}, {@link AudioManager#STREAM_SYSTEM}, 2455c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * {@link AudioManager#STREAM_RING}, {@link AudioManager#STREAM_MUSIC}, 2465c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * {@link AudioManager#STREAM_ALARM}, and {@link AudioManager#STREAM_NOTIFICATION}. 2475c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * @param sampleRateInHz the sample rate expressed in Hertz. 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param channelConfig describes the configuration of the audio channels. 249a553c25b33c99b345cf1c8688f8df0ed8df14e5aEric Laurent * See {@link AudioFormat#CHANNEL_OUT_MONO} and 250a553c25b33c99b345cf1c8688f8df0ed8df14e5aEric Laurent * {@link AudioFormat#CHANNEL_OUT_STEREO} 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param audioFormat the format in which the audio data is represented. 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See {@link AudioFormat#ENCODING_PCM_16BIT} and 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link AudioFormat#ENCODING_PCM_8BIT} 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bufferSizeInBytes the total size (in bytes) of the buffer where audio data is read 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * from for playback. If using the AudioTrack in streaming mode, you can write data into 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this buffer in smaller chunks than this size. If using the AudioTrack in static mode, 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is the maximum size of the sound that will be played for this instance. 258ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * See {@link #getMinBufferSize(int, int, int)} to determine the minimum required buffer size 259ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * for the successful creation of an AudioTrack instance in streaming mode. Using values 260ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * smaller than getMinBufferSize() will result in an initialization failure. 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode streaming or static buffer. See {@link #MODE_STATIC} and {@link #MODE_STREAM} 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws java.lang.IllegalArgumentException 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AudioTrack(int streamType, int sampleRateInHz, int channelConfig, int audioFormat, 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int bufferSizeInBytes, int mode) 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IllegalArgumentException { 267619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent this(streamType, sampleRateInHz, channelConfig, audioFormat, 268619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent bufferSizeInBytes, mode, 0); 269619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent } 270619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent 271619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent /** 272619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * Class constructor with audio session. Use this constructor when the AudioTrack must be 273619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * attached to a particular audio session. The primary use of the audio session ID is to 274619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * associate audio effects to a particular instance of AudioTrack: if an audio session ID 275619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * is provided when creating an AudioEffect, this effect will be applied only to audio tracks 276619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * and media players in the same session and not to the output mix. 277619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * When an AudioTrack is created without specifying a session, it will create its own session 278619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * which can be retreived by calling the {@link #getAudioSessionId()} method. 2795c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * If a non-zero session ID is provided, this AudioTrack will share effects attached to this 2805c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * session 2815c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * with all other media players or audio tracks in the same session, otherwise a new session 2825c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * will be created for this track if none is supplied. 283619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * @param streamType the type of the audio stream. See 284619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * {@link AudioManager#STREAM_VOICE_CALL}, {@link AudioManager#STREAM_SYSTEM}, 2855c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * {@link AudioManager#STREAM_RING}, {@link AudioManager#STREAM_MUSIC}, 2865c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * {@link AudioManager#STREAM_ALARM}, and {@link AudioManager#STREAM_NOTIFICATION}. 2875c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * @param sampleRateInHz the sample rate expressed in Hertz. 288619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * @param channelConfig describes the configuration of the audio channels. 289619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * See {@link AudioFormat#CHANNEL_OUT_MONO} and 290619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * {@link AudioFormat#CHANNEL_OUT_STEREO} 291619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * @param audioFormat the format in which the audio data is represented. 292619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * See {@link AudioFormat#ENCODING_PCM_16BIT} and 293619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * {@link AudioFormat#ENCODING_PCM_8BIT} 294619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * @param bufferSizeInBytes the total size (in bytes) of the buffer where audio data is read 295619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * from for playback. If using the AudioTrack in streaming mode, you can write data into 296619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * this buffer in smaller chunks than this size. If using the AudioTrack in static mode, 297619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * this is the maximum size of the sound that will be played for this instance. 298619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * See {@link #getMinBufferSize(int, int, int)} to determine the minimum required buffer size 299619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * for the successful creation of an AudioTrack instance in streaming mode. Using values 300619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * smaller than getMinBufferSize() will result in an initialization failure. 301619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * @param mode streaming or static buffer. See {@link #MODE_STATIC} and {@link #MODE_STREAM} 302619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * @param sessionId Id of audio session the AudioTrack must be attached to 303619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * @throws java.lang.IllegalArgumentException 304619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent */ 305619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent public AudioTrack(int streamType, int sampleRateInHz, int channelConfig, int audioFormat, 306619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent int bufferSizeInBytes, int mode, int sessionId) 307619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent throws IllegalArgumentException { 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mState = STATE_UNINITIALIZED; 3095c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten 3105c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten // remember which looper is associated with the AudioTrack instantiation 311105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project if ((mInitializationLooper = Looper.myLooper()) == null) { 312105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mInitializationLooper = Looper.getMainLooper(); 313105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project } 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audioParamCheck(streamType, sampleRateInHz, channelConfig, audioFormat, mode); 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audioBuffSizeCheck(bufferSizeInBytes); 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 319619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent if (sessionId < 0) { 320619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent throw (new IllegalArgumentException("Invalid audio session ID: "+sessionId)); 321619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent } 322619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent 323619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent int[] session = new int[1]; 324619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent session[0] = sessionId; 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // native initialization 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initResult = native_setup(new WeakReference<AudioTrack>(this), 3273026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent mStreamType, mSampleRate, mChannels, mAudioFormat, 328619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent mNativeBufferSizeInBytes, mDataLoadMode, session); 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (initResult != SUCCESS) { 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project loge("Error code "+initResult+" when initializing AudioTrack."); 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; // with mState == STATE_UNINITIALIZED 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 334619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent mSessionId = session[0]; 335619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataLoadMode == MODE_STATIC) { 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mState = STATE_NO_STATIC_DATA; 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mState = STATE_INITIALIZED; 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Convenience method for the constructor's parameter checks. 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is where constructor IllegalArgumentException-s are thrown 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // postconditions: 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mStreamType is valid 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mChannelCount is valid 3493026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent // mChannels is valid 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mAudioFormat is valid 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSampleRate is valid 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mDataLoadMode is valid 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void audioParamCheck(int streamType, int sampleRateInHz, 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int channelConfig, int audioFormat, int mode) { 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------- 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // stream type 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if( (streamType != AudioManager.STREAM_ALARM) && (streamType != AudioManager.STREAM_MUSIC) 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && (streamType != AudioManager.STREAM_RING) && (streamType != AudioManager.STREAM_SYSTEM) 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && (streamType != AudioManager.STREAM_VOICE_CALL) 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && (streamType != AudioManager.STREAM_NOTIFICATION) 362a553c25b33c99b345cf1c8688f8df0ed8df14e5aEric Laurent && (streamType != AudioManager.STREAM_BLUETOOTH_SCO) 363a553c25b33c99b345cf1c8688f8df0ed8df14e5aEric Laurent && (streamType != AudioManager.STREAM_DTMF)) { 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw (new IllegalArgumentException("Invalid stream type.")); 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStreamType = streamType; 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------- 3705c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten // sample rate, note these values are subject to change 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ( (sampleRateInHz < 4000) || (sampleRateInHz > 48000) ) { 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw (new IllegalArgumentException(sampleRateInHz 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "Hz is not a supported sample rate.")); 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSampleRate = sampleRateInHz; 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------- 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // channel config 3803026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent mChannelConfiguration = channelConfig; 3813026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (channelConfig) { 3833026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent case AudioFormat.CHANNEL_OUT_DEFAULT: //AudioFormat.CHANNEL_CONFIGURATION_DEFAULT 384a553c25b33c99b345cf1c8688f8df0ed8df14e5aEric Laurent case AudioFormat.CHANNEL_OUT_MONO: 3853026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent case AudioFormat.CHANNEL_CONFIGURATION_MONO: 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mChannelCount = 1; 3873026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent mChannels = AudioFormat.CHANNEL_OUT_MONO; 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 389a553c25b33c99b345cf1c8688f8df0ed8df14e5aEric Laurent case AudioFormat.CHANNEL_OUT_STEREO: 3903026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent case AudioFormat.CHANNEL_CONFIGURATION_STEREO: 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mChannelCount = 2; 3923026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent mChannels = AudioFormat.CHANNEL_OUT_STEREO; 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mChannelCount = 0; 3963026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent mChannels = AudioFormat.CHANNEL_INVALID; 3973026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent mChannelConfiguration = AudioFormat.CHANNEL_CONFIGURATION_INVALID; 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw(new IllegalArgumentException("Unsupported channel configuration.")); 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------- 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // audio format 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (audioFormat) { 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case AudioFormat.ENCODING_DEFAULT: 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioFormat = AudioFormat.ENCODING_PCM_16BIT; 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case AudioFormat.ENCODING_PCM_16BIT: 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case AudioFormat.ENCODING_PCM_8BIT: 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioFormat = audioFormat; 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAudioFormat = AudioFormat.ENCODING_INVALID; 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw(new IllegalArgumentException("Unsupported sample encoding." 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " Should be ENCODING_PCM_8BIT or ENCODING_PCM_16BIT.")); 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------- 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // audio load mode 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ( (mode != MODE_STREAM) && (mode != MODE_STATIC) ) { 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw(new IllegalArgumentException("Invalid mode.")); 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataLoadMode = mode; 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Convenience method for the contructor's audio buffer size check. 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // preconditions: 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mChannelCount is valid 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mAudioFormat is valid 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // postcondition: 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mNativeBufferSizeInBytes is valid (multiple of frame size, positive) 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void audioBuffSizeCheck(int audioBufferSize) { 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // NB: this section is only valid with PCM data. 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // To update when supporting compressed formats 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int frameSizeInBytes = mChannelCount 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (mAudioFormat == AudioFormat.ENCODING_PCM_8BIT ? 1 : 2); 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((audioBufferSize % frameSizeInBytes != 0) || (audioBufferSize < 1)) { 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw (new IllegalArgumentException("Invalid audio buffer size.")); 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeBufferSizeInBytes = audioBufferSize; 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Releases the native AudioTrack resources. 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void release() { 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // even though native_release() stops the native AudioTrack, we need to stop 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // AudioTrack subclasses too. 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project stop(); 454fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten } catch(IllegalStateException ise) { 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't raise an exception, we're releasing the resources. 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_release(); 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mState = STATE_UNINITIALIZED; 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void finalize() { 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_finalize(); 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------------------------------------------------------------------- 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Getters 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------------- 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the minimum valid volume value. Volume values set under this one will 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be clamped at this value. 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the minimum volume expressed as a linear attenuation. 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static public float getMinVolume() { 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return AudioTrack.VOLUME_MIN; 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the maximum valid volume value. Volume values set above this one will 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be clamped at this value. 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the maximum volume expressed as a linear attenuation. 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static public float getMaxVolume() { 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return AudioTrack.VOLUME_MAX; 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the configured audio data sample rate in Hz 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSampleRate() { 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSampleRate; 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 493fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49588e209dcf8c2ebddda5c272f46d1bd5478bc639cEric Laurent * Returns the current playback rate in Hz. 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getPlaybackRate() { 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_get_playback_rate(); 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the configured audio data format. See {@link AudioFormat#ENCODING_PCM_16BIT} 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and {@link AudioFormat#ENCODING_PCM_8BIT}. 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getAudioFormat() { 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAudioFormat; 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the type of audio stream this AudioTrack is configured for. 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Compare the result against {@link AudioManager#STREAM_VOICE_CALL}, 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link AudioManager#STREAM_SYSTEM}, {@link AudioManager#STREAM_RING}, 5135c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * {@link AudioManager#STREAM_MUSIC}, {@link AudioManager#STREAM_ALARM}, 514b282e08ab641d4fc74d0324b7a0ce30926638dd5Glenn Kasten * {@link AudioManager#STREAM_NOTIFICATION}, or {@link AudioManager#STREAM_DTMF}. 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getStreamType() { 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStreamType; 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the configured channel configuration. 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 523a553c25b33c99b345cf1c8688f8df0ed8df14e5aEric Laurent * See {@link AudioFormat#CHANNEL_OUT_MONO} 524a553c25b33c99b345cf1c8688f8df0ed8df14e5aEric Laurent * and {@link AudioFormat#CHANNEL_OUT_STEREO}. 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getChannelConfiguration() { 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mChannelConfiguration; 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the configured number of channels. 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getChannelCount() { 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mChannelCount; 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the state of the AudioTrack instance. This is useful after the 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AudioTrack instance has been created to check if it was initialized 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properly. This ensures that the appropriate hardware resources have been 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * acquired. 542ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * @see #STATE_INITIALIZED 543ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * @see #STATE_NO_STATIC_DATA 544ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * @see #STATE_UNINITIALIZED 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getState() { 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mState; 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the playback state of the AudioTrack instance. 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #PLAYSTATE_STOPPED 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #PLAYSTATE_PAUSED 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #PLAYSTATE_PLAYING 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getPlayState() { 55706e0333c7eb50533cc6e0f7b61812d2840844296Narayan Kamath synchronized (mPlayStateLock) { 55806e0333c7eb50533cc6e0f7b61812d2840844296Narayan Kamath return mPlayState; 55906e0333c7eb50533cc6e0f7b61812d2840844296Narayan Kamath } 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 563ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * Returns the native frame count used by the hardware. 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int getNativeFrameCount() { 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_get_native_frame_count(); 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 570ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * Returns marker position expressed in frames. 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getNotificationMarkerPosition() { 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_get_marker_pos(); 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 577ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * Returns the notification update period expressed in frames. 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getPositionNotificationPeriod() { 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_get_pos_update_period(); 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 584ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * Returns the playback head position expressed in frames 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getPlaybackHeadPosition() { 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_get_position(); 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the hardware output sample rate 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static public int getNativeOutputSampleRate(int streamType) { 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_get_output_sample_rate(streamType); 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 596fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the minimum buffer size required for the successful creation of an AudioTrack 599ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * object to be created in the {@link #MODE_STREAM} mode. Note that this size doesn't 600ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * guarantee a smooth playback under load, and higher values should be chosen according to 601fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten * the expected frequency at which the buffer will be refilled with additional data to play. 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sampleRateInHz the sample rate expressed in Hertz. 603fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten * @param channelConfig describes the configuration of the audio channels. 604a553c25b33c99b345cf1c8688f8df0ed8df14e5aEric Laurent * See {@link AudioFormat#CHANNEL_OUT_MONO} and 605a553c25b33c99b345cf1c8688f8df0ed8df14e5aEric Laurent * {@link AudioFormat#CHANNEL_OUT_STEREO} 606fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten * @param audioFormat the format in which the audio data is represented. 607fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten * See {@link AudioFormat#ENCODING_PCM_16BIT} and 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link AudioFormat#ENCODING_PCM_8BIT} 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #ERROR_BAD_VALUE} if an invalid parameter was passed, 610fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten * or {@link #ERROR} if the implementation was unable to query the hardware for its output 611fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten * properties, 612ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * or the minimum buffer size expressed in bytes. 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static public int getMinBufferSize(int sampleRateInHz, int channelConfig, int audioFormat) { 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int channelCount = 0; 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch(channelConfig) { 617a553c25b33c99b345cf1c8688f8df0ed8df14e5aEric Laurent case AudioFormat.CHANNEL_OUT_MONO: 6183026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent case AudioFormat.CHANNEL_CONFIGURATION_MONO: 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project channelCount = 1; 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 621a553c25b33c99b345cf1c8688f8df0ed8df14e5aEric Laurent case AudioFormat.CHANNEL_OUT_STEREO: 6223026a023b8979b7ddcb3fe97bbc45531c89fda92Eric Laurent case AudioFormat.CHANNEL_CONFIGURATION_STEREO: 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project channelCount = 2; 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project loge("getMinBufferSize(): Invalid channel configuration."); 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return AudioTrack.ERROR_BAD_VALUE; 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 629fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten 630fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten if ((audioFormat != AudioFormat.ENCODING_PCM_16BIT) 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && (audioFormat != AudioFormat.ENCODING_PCM_8BIT)) { 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project loge("getMinBufferSize(): Invalid audio format."); 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return AudioTrack.ERROR_BAD_VALUE; 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 635fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten 6365c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten // sample rate, note these values are subject to change 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ( (sampleRateInHz < 4000) || (sampleRateInHz > 48000) ) { 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project loge("getMinBufferSize(): " + sampleRateInHz +"Hz is not a supported sample rate."); 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return AudioTrack.ERROR_BAD_VALUE; 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 641fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = native_get_min_buff_size(sampleRateInHz, channelCount, audioFormat); 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((size == -1) || (size == 0)) { 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project loge("getMinBufferSize(): error querying hardware"); 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return AudioTrack.ERROR; 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project else { 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return size; 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 652619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent /** 653619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * Returns the audio session ID. 654619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * 655619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent * @return the ID of the audio session this AudioTrack belongs to. 656619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent */ 657619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent public int getAudioSessionId() { 658619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent return mSessionId; 659619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent } 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------------------------------------------------------------------- 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Initialization / configuration 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------------- 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6654df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * Sets the listener the AudioTrack notifies when a previously set marker is reached or 6664df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * for each periodic playback head position update. 667ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * Notifications will be received in the same thread as the one in which the AudioTrack 668ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * instance was created. 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6714df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project public void setPlaybackPositionUpdateListener(OnPlaybackPositionUpdateListener listener) { 6724df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project setPlaybackPositionUpdateListener(listener, null); 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 674fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten 675ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi /** 676ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * Sets the listener the AudioTrack notifies when a previously set marker is reached or 677ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * for each periodic playback head position update. 678ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * Use this method to receive AudioTrack events in the Handler associated with another 679ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * thread than the one in which you created the AudioTrack instance. 680ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * @param listener 681ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * @param handler the Handler that will receive the event notification messages. 682ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi */ 683fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten public void setPlaybackPositionUpdateListener(OnPlaybackPositionUpdateListener listener, 6844df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project Handler handler) { 6854df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project synchronized (mPositionListenerLock) { 6864df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project mPositionListener = listener; 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6884df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project if (listener != null) { 6894df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project mEventHandlerDelegate = new NativeEventHandlerDelegate(this, handler); 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 691fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6954df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the specified left/right output volume values on the AudioTrack. Values are clamped 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the ({@link #getMinVolume()}, {@link #getMaxVolume()}) interval if outside this range. 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param leftVolume output attenuation for the left channel. A value of 0.0f is silence, 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a value of 1.0f is no attenuation. 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rightVolume output attenuation for the right channel 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return error code or success, see {@link #SUCCESS}, 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #ERROR_INVALID_OPERATION} 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int setStereoVolume(float leftVolume, float rightVolume) { 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mState != STATE_INITIALIZED) { 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ERROR_INVALID_OPERATION; 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // clamp the volumes 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (leftVolume < getMinVolume()) { 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project leftVolume = getMinVolume(); 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (leftVolume > getMaxVolume()) { 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project leftVolume = getMaxVolume(); 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (rightVolume < getMinVolume()) { 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rightVolume = getMinVolume(); 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (rightVolume > getMaxVolume()) { 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rightVolume = getMaxVolume(); 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_setVolume(leftVolume, rightVolume); 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return SUCCESS; 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the playback sample rate for this track. This sets the sampling rate at which 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the audio data will be consumed and played back, not the original sampling rate of the 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * content. Setting it to half the sample rate of the content will cause the playback to 73488e209dcf8c2ebddda5c272f46d1bd5478bc639cEric Laurent * last twice as long, but will also result in a negative pitch shift. 7355c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * The valid sample rate range is from 1Hz to twice the value returned by 73688e209dcf8c2ebddda5c272f46d1bd5478bc639cEric Laurent * {@link #getNativeOutputSampleRate(int)}. 737ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * @param sampleRateInHz the sample rate expressed in Hz 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return error code or success, see {@link #SUCCESS}, {@link #ERROR_BAD_VALUE}, 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #ERROR_INVALID_OPERATION} 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int setPlaybackRate(int sampleRateInHz) { 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mState != STATE_INITIALIZED) { 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ERROR_INVALID_OPERATION; 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sampleRateInHz <= 0) { 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ERROR_BAD_VALUE; 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 74888e209dcf8c2ebddda5c272f46d1bd5478bc639cEric Laurent return native_set_playback_rate(sampleRateInHz); 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 753ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * Sets the position of the notification marker. 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param markerInFrames marker in frames 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return error code or success, see {@link #SUCCESS}, {@link #ERROR_BAD_VALUE}, 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #ERROR_INVALID_OPERATION} 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int setNotificationMarkerPosition(int markerInFrames) { 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mState != STATE_INITIALIZED) { 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ERROR_INVALID_OPERATION; 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_set_marker_pos(markerInFrames); 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 767ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * Sets the period for the periodic notification event. 768ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * @param periodInFrames update period expressed in frames 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return error code or success, see {@link #SUCCESS}, {@link #ERROR_INVALID_OPERATION} 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int setPositionNotificationPeriod(int periodInFrames) { 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mState != STATE_INITIALIZED) { 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ERROR_INVALID_OPERATION; 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_set_pos_update_period(periodInFrames); 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the playback head position. The track must be stopped for the position to be changed. 781ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * @param positionInFrames playback head position expressed in frames 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return error code or success, see {@link #SUCCESS}, {@link #ERROR_BAD_VALUE}, 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #ERROR_INVALID_OPERATION} 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int setPlaybackHeadPosition(int positionInFrames) { 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized(mPlayStateLock) { 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mPlayState == PLAYSTATE_STOPPED) || (mPlayState == PLAYSTATE_PAUSED)) { 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_set_position(positionInFrames); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ERROR_INVALID_OPERATION; 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the loop points and the loop count. The loop can be infinite. 797ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * @param startInFrames loop start marker expressed in frames 798ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * @param endInFrames loop end marker expressed in frames 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param loopCount the number of times the loop is looped. 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A value of -1 means infinite looping. 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return error code or success, see {@link #SUCCESS}, {@link #ERROR_BAD_VALUE}, 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #ERROR_INVALID_OPERATION} 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int setLoopPoints(int startInFrames, int endInFrames, int loopCount) { 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataLoadMode == MODE_STREAM) { 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ERROR_INVALID_OPERATION; 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_set_loop(startInFrames, endInFrames, loopCount); 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initialization state of the instance. To be used in an AudioTrack subclass 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * constructor to set a subclass-specific post-initialization state. 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param state the state of the AudioTrack instance 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void setState(int state) { 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mState = state; 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //--------------------------------------------------------- 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Transport control methods 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------------- 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Starts playing an AudioTrack. 82688bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalStateException 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void play() 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IllegalStateException { 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mState != STATE_INITIALIZED) { 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw(new IllegalStateException("play() called on uninitialized AudioTrack.")); 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized(mPlayStateLock) { 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_start(); 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPlayState = PLAYSTATE_PLAYING; 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Stops playing the audio data. 843a701da8ebabb3d63ac57b7718055698abb21804aJean-Michel Trivi * When used on an instance created in {@link #MODE_STREAM} mode, audio will stop playing 844a701da8ebabb3d63ac57b7718055698abb21804aJean-Michel Trivi * after the last buffer that was written has been played. For an immediate stop, use 845a701da8ebabb3d63ac57b7718055698abb21804aJean-Michel Trivi * {@link #pause()}, followed by {@link #flush()} to discard audio data that hasn't been played 846a701da8ebabb3d63ac57b7718055698abb21804aJean-Michel Trivi * back yet. 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalStateException 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void stop() 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IllegalStateException { 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mState != STATE_INITIALIZED) { 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw(new IllegalStateException("stop() called on uninitialized AudioTrack.")); 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // stop playing 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized(mPlayStateLock) { 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_stop(); 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPlayState = PLAYSTATE_STOPPED; 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 86388bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * Pauses the playback of the audio data. Data that has not been played 86488bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * back will not be discarded. Subsequent calls to {@link #play} will play 865a701da8ebabb3d63ac57b7718055698abb21804aJean-Michel Trivi * this data back. See {@link #flush()} to discard this data. 86688bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalStateException 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void pause() 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IllegalStateException { 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mState != STATE_INITIALIZED) { 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw(new IllegalStateException("pause() called on uninitialized AudioTrack.")); 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //logd("pause()"); 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // pause playback 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized(mPlayStateLock) { 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_pause(); 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPlayState = PLAYSTATE_PAUSED; 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //--------------------------------------------------------- 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Audio data supply 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------------- 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 88988bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * Flushes the audio data currently queued for playback. Any data that has 89088bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * not been played back will be discarded. 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void flush() { 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mState == STATE_INITIALIZED) { 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // flush the data in native layer 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_flush(); 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 90188bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * Writes the audio data to the audio hardware for playback. Will block until 90288bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * all data has been written to the audio mixer. 90388bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * Note that the actual playback of this data might occur after this function 90488bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * returns. This function is thread safe with respect to {@link #stop} calls, 90588bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * in which case all of the specified data might not be written to the mixer. 90688bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param audioData the array that holds the data to play. 90888bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * @param offsetInBytes the offset expressed in bytes in audioData where the data to play 909ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * starts. 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sizeInBytes the number of bytes to read in audioData after the offset. 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the number of bytes that were written or {@link #ERROR_INVALID_OPERATION} 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the object wasn't properly initialized, or {@link #ERROR_BAD_VALUE} if 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the parameters don't resolve to valid data and indexes. 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9165c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten public int write(byte[] audioData, int offsetInBytes, int sizeInBytes) { 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mDataLoadMode == MODE_STATIC) 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && (mState == STATE_NO_STATIC_DATA) 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && (sizeInBytes > 0)) { 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mState = STATE_INITIALIZED; 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mState != STATE_INITIALIZED) { 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ERROR_INVALID_OPERATION; 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 927fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten if ( (audioData == null) || (offsetInBytes < 0 ) || (sizeInBytes < 0) 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || (offsetInBytes + sizeInBytes > audioData.length)) { 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ERROR_BAD_VALUE; 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_write_byte(audioData, offsetInBytes, sizeInBytes, mAudioFormat); 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 93788bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * Writes the audio data to the audio hardware for playback. Will block until 93888bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * all data has been written to the audio mixer. 93988bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * Note that the actual playback of this data might occur after this function 94088bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * returns. This function is thread safe with respect to {@link #stop} calls, 94188bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * in which case all of the specified data might not be written to the mixer. 94288bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param audioData the array that holds the data to play. 944ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * @param offsetInShorts the offset expressed in shorts in audioData where the data to play 945ff14c25339da3f6cd86edd66ef42640e6d0c0787Jean-Michel Trivi * starts. 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sizeInShorts the number of bytes to read in audioData after the offset. 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the number of shorts that were written or {@link #ERROR_INVALID_OPERATION} 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the object wasn't properly initialized, or {@link #ERROR_BAD_VALUE} if 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the parameters don't resolve to valid data and indexes. 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int write(short[] audioData, int offsetInShorts, int sizeInShorts) { 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mDataLoadMode == MODE_STATIC) 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && (mState == STATE_NO_STATIC_DATA) 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && (sizeInShorts > 0)) { 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mState = STATE_INITIALIZED; 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 958fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mState != STATE_INITIALIZED) { 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ERROR_INVALID_OPERATION; 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 963fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten if ( (audioData == null) || (offsetInShorts < 0 ) || (sizeInShorts < 0) 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || (offsetInShorts + sizeInShorts > audioData.length)) { 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ERROR_BAD_VALUE; 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_write_short(audioData, offsetInShorts, sizeInShorts, mAudioFormat); 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notifies the native resource to reuse the audio data already loaded in the native 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layer. This call is only valid with AudioTrack instances that don't use the streaming 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * model. 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return error code or success, see {@link #SUCCESS}, {@link #ERROR_BAD_VALUE}, 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #ERROR_INVALID_OPERATION} 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int reloadStaticData() { 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataLoadMode == MODE_STREAM) { 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ERROR_INVALID_OPERATION; 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_reload_static(); 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9867070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent //-------------------------------------------------------------------------- 9877070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent // Audio effects management 9887070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent //-------------------- 9897070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent 9907070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent /** 9911a5149e5d7f2dddc8b324f7695e69fd89af73c52Eric Laurent * Attaches an auxiliary effect to the audio track. A typical auxiliary 9921a5149e5d7f2dddc8b324f7695e69fd89af73c52Eric Laurent * effect is a reverberation effect which can be applied on any sound source 9931a5149e5d7f2dddc8b324f7695e69fd89af73c52Eric Laurent * that directs a certain amount of its energy to this effect. This amount 9941a5149e5d7f2dddc8b324f7695e69fd89af73c52Eric Laurent * is defined by setAuxEffectSendLevel(). 9957070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent * {@see #setAuxEffectSendLevel(float)}. 9961a5149e5d7f2dddc8b324f7695e69fd89af73c52Eric Laurent * <p>After creating an auxiliary effect (e.g. 9971a5149e5d7f2dddc8b324f7695e69fd89af73c52Eric Laurent * {@link android.media.audiofx.EnvironmentalReverb}), retrieve its ID with 9981a5149e5d7f2dddc8b324f7695e69fd89af73c52Eric Laurent * {@link android.media.audiofx.AudioEffect#getId()} and use it when calling 9997070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent * this method to attach the audio track to the effect. 10001a5149e5d7f2dddc8b324f7695e69fd89af73c52Eric Laurent * <p>To detach the effect from the audio track, call this method with a 10011a5149e5d7f2dddc8b324f7695e69fd89af73c52Eric Laurent * null effect id. 10027070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent * 10037070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent * @param effectId system wide unique id of the effect to attach 10047070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent * @return error code or success, see {@link #SUCCESS}, 10057070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent * {@link #ERROR_INVALID_OPERATION}, {@link #ERROR_BAD_VALUE} 10067070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent */ 10077070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent public int attachAuxEffect(int effectId) { 10087070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent if (mState != STATE_INITIALIZED) { 10097070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent return ERROR_INVALID_OPERATION; 10107070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent } 10117070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent return native_attachAuxEffect(effectId); 10127070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent } 10137070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent 10147070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent /** 10157070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent * Sets the send level of the audio track to the attached auxiliary effect 101688bde0ce3799c47530ea42ae3665bfa12ae38d11Narayan Kamath * {@link #attachAuxEffect(int)}. The level value range is 0 to 1.0. 10177070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent * <p>By default the send level is 0, so even if an effect is attached to the player 10187070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent * this method must be called for the effect to be applied. 10197070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent * <p>Note that the passed level value is a raw scalar. UI controls should be scaled 10207070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent * logarithmically: the gain applied by audio framework ranges from -72dB to 0dB, 10217070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent * so an appropriate conversion from linear UI input x to level is: 10225c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * x == 0 -> level = 0 10235c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten * 0 < x <= R -> level = 10^(72*(x-R)/20/R) 10247070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent * 10257070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent * @param level send level scalar 10267070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent * @return error code or success, see {@link #SUCCESS}, 10277070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent * {@link #ERROR_INVALID_OPERATION} 10287070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent */ 10297070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent public int setAuxEffectSendLevel(float level) { 10307070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent if (mState != STATE_INITIALIZED) { 10317070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent return ERROR_INVALID_OPERATION; 10327070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent } 10337070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent // clamp the level 10347070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent if (level < getMinVolume()) { 10357070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent level = getMinVolume(); 10367070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent } 10377070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent if (level > getMaxVolume()) { 10387070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent level = getMaxVolume(); 10397070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent } 10407070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent native_setAuxEffectSendLevel(level); 10417070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent return SUCCESS; 10427070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent } 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //--------------------------------------------------------- 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Interface definitions 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------------- 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10484df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * Interface definition for a callback to be invoked when the playback head position of 10494df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * an AudioTrack has reached a notification marker or has increased by a certain period. 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10514df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project public interface OnPlaybackPositionUpdateListener { 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Called on the listener to notify it that the previously set marker has been reached 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * by the playback head. 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMarkerReached(AudioTrack track); 1057fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Called on the listener to periodically notify it that the playback head has reached 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a multiple of the notification period. 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onPeriodicNotification(AudioTrack track); 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //--------------------------------------------------------- 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Inner classes 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------------- 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10704df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * Helper class to handle the forwarding of native events to the appropriate listener 10714df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * (potentially) handled in a different thread 10725c17a820f9e46e0756c11795b3e6f89105f2f539Glenn Kasten */ 10734df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project private class NativeEventHandlerDelegate { 10744df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project private final AudioTrack mAudioTrack; 10754df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project private final Handler mHandler; 1076fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten 10774df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project NativeEventHandlerDelegate(AudioTrack track, Handler handler) { 10784df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project mAudioTrack = track; 10794df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project // find the looper for our new event handler 10804df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project Looper looper; 10814df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project if (handler != null) { 10824df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project looper = handler.getLooper(); 10834df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project } else { 1084105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project // no given handler, use the looper the AudioTrack was created in 1085105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project looper = mInitializationLooper; 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1087fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten 10884df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project // construct the event handler with this looper 10894df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project if (looper != null) { 10904df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project // implement the event handler delegate 10914df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project mHandler = new Handler(looper) { 10924df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project @Override 10934df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project public void handleMessage(Message msg) { 10944df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project if (mAudioTrack == null) { 10954df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project return; 10964df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project } 10974df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project OnPlaybackPositionUpdateListener listener = null; 10984df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project synchronized (mPositionListenerLock) { 10994df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project listener = mAudioTrack.mPositionListener; 11004df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project } 11014df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project switch(msg.what) { 11024df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project case NATIVE_EVENT_MARKER: 11034df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project if (listener != null) { 11044df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project listener.onMarkerReached(mAudioTrack); 11054df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project } 11064df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project break; 11074df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project case NATIVE_EVENT_NEW_POS: 11084df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project if (listener != null) { 11094df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project listener.onPeriodicNotification(mAudioTrack); 11104df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project } 11114df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project break; 11124df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project default: 11134df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project Log.e(TAG, "[ android.media.AudioTrack.NativeEventHandler ] " + 11144df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project "Unknown event type: " + msg.what); 11154df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project break; 11164df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project } 11174df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project } 11184df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project }; 11194df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project } else { 11204df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project mHandler = null; 1121fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten } 11224df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project } 1123fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten 11244df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project Handler getHandler() { 11254df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project return mHandler; 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //--------------------------------------------------------- 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Java methods called from the native side 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------------- 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @SuppressWarnings("unused") 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void postEventFromNative(Object audiotrack_ref, 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int what, int arg1, int arg2, Object obj) { 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //logd("Event posted from the native side: event="+ what + " args="+ arg1+" "+arg2); 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AudioTrack track = (AudioTrack)((WeakReference)audiotrack_ref).get(); 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (track == null) { 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11424df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project if (track.mEventHandlerDelegate != null) { 1143fb2ab9efc3805c81521afb9ff91a58ff5097a36eGlenn Kasten Message m = 11444df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project track.mEventHandlerDelegate.getHandler().obtainMessage(what, arg1, arg2, obj); 11454df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project track.mEventHandlerDelegate.getHandler().sendMessage(m); 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //--------------------------------------------------------- 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Native methods called from the Java side 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //-------------------- 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final int native_setup(Object audiotrack_this, 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int streamType, int sampleRate, int nbChannels, int audioFormat, 1157619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent int buffSizeInBytes, int mode, int[] sessionId); 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final void native_finalize(); 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final void native_release(); 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final void native_start(); 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final void native_stop(); 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final void native_pause(); 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final void native_flush(); 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final int native_write_byte(byte[] audioData, 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offsetInBytes, int sizeInBytes, int format); 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final int native_write_short(short[] audioData, 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offsetInShorts, int sizeInShorts, int format); 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final int native_reload_static(); 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final int native_get_native_frame_count(); 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final void native_setVolume(float leftVolume, float rightVolume); 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 118388e209dcf8c2ebddda5c272f46d1bd5478bc639cEric Laurent private native final int native_set_playback_rate(int sampleRateInHz); 118488e209dcf8c2ebddda5c272f46d1bd5478bc639cEric Laurent private native final int native_get_playback_rate(); 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final int native_set_marker_pos(int marker); 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final int native_get_marker_pos(); 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final int native_set_pos_update_period(int updatePeriod); 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final int native_get_pos_update_period(); 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final int native_set_position(int position); 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final int native_get_position(); 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native final int native_set_loop(int start, int end, int loopCount); 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static private native final int native_get_output_sample_rate(int streamType); 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static private native final int native_get_min_buff_size( 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sampleRateInHz, int channelConfig, int audioFormat); 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1201619346f902241736d933657a4fe10f10c50a1ba8Eric Laurent private native final int native_get_session_id(); 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12037070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent private native final int native_attachAuxEffect(int effectId); 12047070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent private native final void native_setAuxEffectSendLevel(float level); 12057070b36549d511d6627538c73dfbab23fbae5b43Eric Laurent 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //--------------------------------------------------------- 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Utility methods 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //------------------ 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void logd(String msg) { 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.d(TAG, "[ android.media.AudioTrack ] " + msg); 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void loge(String msg) { 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "[ android.media.AudioTrack ] " + msg); 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1219