SoundPool.java revision 9066cfe9886ac131c34d59ed0e2d287b0e3c0087
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/*
29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2007 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 android.util.AndroidRuntimeException;
209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.Log;
219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.File;
229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.FileDescriptor;
239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.ParcelFileDescriptor;
249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.ref.WeakReference;
259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context;
269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.AssetFileDescriptor;
279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.IOException;
289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/*
309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The SoundPool class manages and plays audio resources for applications.
319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */
329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class SoundPool
339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{
349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    static { System.loadLibrary("soundpool"); }
359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    private final static String TAG = "SoundPool";
379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    private int mNativeContext; // accessed by native methods
399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public SoundPool(int maxStreams, int streamType, int srcQuality) {
419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        native_setup(new WeakReference<SoundPool>(this), maxStreams, streamType, srcQuality);
429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public int load(String path, int priority)
459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    {
469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        // pass network streams to player
479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (path.startsWith("http:"))
489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            return _load(path, priority);
499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        // try local path
519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        int id = 0;
529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        try {
539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            File f = new File(path);
549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            if (f != null) {
559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                ParcelFileDescriptor fd = ParcelFileDescriptor.open(f, ParcelFileDescriptor.MODE_READ_ONLY);
569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                if (fd != null) {
579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                    id = _load(fd.getFileDescriptor(), 0, f.length(), priority);
589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                    //Log.v(TAG, "close fd");
599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                    fd.close();
609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                }
619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            }
629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        } catch (java.io.IOException e) {}
639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return id;
649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public int load(Context context, int resId, int priority) {
679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        AssetFileDescriptor afd = context.getResources().openRawResourceFd(resId);
689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        int id = 0;
699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (afd != null) {
709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            id = _load(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength(), priority);
719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            try {
729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                //Log.v(TAG, "close fd");
739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                afd.close();
749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            } catch (java.io.IOException ex) {
759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                //Log.d(TAG, "close failed:", ex);
769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            }
779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return id;
799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public int load(AssetFileDescriptor afd, int priority) {
829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        if (afd != null) {
839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            long len = afd.getLength();
849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            if (len < 0) {
859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project                throw new AndroidRuntimeException("no length for fd");
869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            }
879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            return _load(afd.getFileDescriptor(), afd.getStartOffset(), len, priority);
889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        } else {
899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            return 0;
909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        }
919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public int load(FileDescriptor fd, long offset, long length, int priority) {
949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project        return _load(fd, offset, length, priority);
959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    }
969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    private native final int _load(String uri, int priority);
989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    private native final int _load(FileDescriptor fd, long offset, long length, int priority);
1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public native final boolean unload(int soundID);
1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public native final int play(int soundID, float leftVolume, float rightVolume,
1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            int priority, int loop, float rate);
1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public native final void pause(int streamID);
1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public native final void resume(int streamID);
1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public native final void stop(int streamID);
1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public native final void setVolume(int streamID,
1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            float leftVolume, float rightVolume);
1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public native final void setPriority(int streamID, int priority);
1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public native final void setLoop(int streamID, int loop);
1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public native final void setRate(int streamID, float rate);
1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    public native final void release();
1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    private native final void native_setup(Object mediaplayer_this,
1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project            int maxStreams, int streamType, int srcQuality);
1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project
1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project    protected void finalize() { release(); }
1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}
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