我在Debug中运行时遇到这个错误数百次，它似乎并没有影响程序，但是我该如何摆脱它呢？
我知道它可以根据其他帖子追溯到SoundPool
09-15 09:03:09.190：错误/AudioCache(34)：堆大小溢出！请求大小：1052672，最大大小：1048576
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6057 次
3 回答
12
SoundPool is hard code the buffer size as 1M for all loaded file. So you probably will get 'heap size overflow' error when you load too much files into SoundPool. I also have this issue on a game project that will load game sound FX into SoundPool and the solution is as follow:
- Play long/large background music in MediaPlayer.
- Play short sound files in multi SoundPool instances to prevent the heap error. The sample code for multi SoundPools:
/**
* Multi SoundPool to prevent memory error.
*/
public class SoundPools {
private static final String TAG = "SoundPools";
private static final int MAX_STREAMS_PER_POOL = 15;
private List<SoundPoolContainer> containers;
public SoundPools() {
containers = Collections.synchronizedList(new ArrayList<SoundPoolContainer>());
}
public void loadSound(Context context, String id, String file) {
Log.d(TAG, "SouldPools load sound " + file);
try {
for (SoundPoolContainer container : containers) {
if (container.contains(id)) {
return;
}
}
for (SoundPoolContainer container : containers) {
if (!container.isFull()) {
container.load(context, id, file);
return;
}
}
SoundPoolContainer container = new SoundPoolContainer();
containers.add(container);
container.load(context, id, file);
} catch (Exception e) {
Log.w(TAG, "Load sound error", e);
}
}
public void playSound(Context context, String id, String file) {
Log.d(TAG, "SouldPools play sound " + file);
try {
for (SoundPoolContainer container : containers) {
if (container.contains(id)) {
container.play(context, id, file);
return;
}
}
for (SoundPoolContainer container : containers) {
if (!container.isFull()) {
container.play(context, id, file);
return;
}
}
SoundPoolContainer container = new SoundPoolContainer();
containers.add(container);
container.play(context, id, file);
} catch (Exception e) {
Log.w(TAG, "Play sound error", e);
}
}
public void onPause() {
for (SoundPoolContainer container : containers) {
container.onPause();
}
}
public void onResume() {
for (SoundPoolContainer container : containers) {
container.onResume();
}
}
private static class SoundPoolContainer {
SoundPool soundPool;
Map<String, Integer> soundMap;
AtomicInteger size;
public SoundPoolContainer() {
this.soundPool = new SoundPool(MAX_STREAMS_PER_POOL, android.media.AudioManager.STREAM_MUSIC, 0);
this.soundMap = new ConcurrentHashMap<String, Integer>(MAX_STREAMS_PER_POOL);
this.size = new AtomicInteger(0);
}
public void load(Context context, String id, String file) {
try {
this.size.incrementAndGet();
soundMap.put(id, soundPool.load(context.getAssets().openFd(file), 1));
} catch (Exception e) {
this.size.decrementAndGet();
Log.w(TAG, "Load sound error", e);
}
}
public void play(Context context, String id, String file) {
android.media.AudioManager audioManager = (android.media.AudioManager) context
.getSystemService(Context.AUDIO_SERVICE);
final int streamVolume = audioManager.getStreamVolume(android.media.AudioManager.STREAM_MUSIC);
Integer soundId = soundMap.get(id);
if (soundId == null) {
soundPool.setOnLoadCompleteListener(new SoundPool.OnLoadCompleteListener() {
@Override
public void onLoadComplete(SoundPool soundPool, int sampleId, int status) {
soundPool.play(sampleId, streamVolume, streamVolume, 1, 0, 1f);
}
});
try {
this.size.incrementAndGet();
soundPool.load(context.getAssets().openFd(file), 1);
} catch (IOException e) {
this.size.decrementAndGet();
Log.w(TAG, "Load/Play sound error", e);
}
} else {
try {
soundPool.play(soundId, streamVolume, streamVolume, 1, 0, 1f);
} catch (Exception e) {
Log.w(TAG, "Play sound error", e);
}
}
}
public boolean contains(String id) {
return soundMap.containsKey(id);
}
public boolean isFull() {
return this.size.get() >= MAX_STREAMS_PER_POOL;
}
public void onPause() {
try {
soundPool.autoPause();
} catch (Exception e) {
Log.w(TAG, "Pause SoundPool error", e);
}
}
public void onResume() {
try {
soundPool.autoResume();
} catch (Exception e) {
Log.w(TAG, "Resume SoundPool error", e);
}
}
}
}
于 2013-03-11T04:39:59.650 回答
0
也许您的媒体资源太大而无法使用 soundpool。Soundpool 只播放短音效。在 Soundpool API 上，没有关于使用 soundpool 播放资源的最大值的规范，但是如果您使用它，则只播放简短的音效，例如射击游戏中的短暂爆炸。如果这是您的问题，您应该使用 MediaPlayer 播放声音。
于 2012-11-18T19:42:50.477 回答
0
此错误不可能与堆大小有关，因为没有任何设备具有如此小的堆 1052672 ~ 1Mb.，而是与SoundPool缓冲区大小有关。
内存SoundPool中的原始数据硬编码限制为 1Mb 。PCM_16此限制适用于您加载到内存中的每个声音，而不适用于每个声音的总和SoundPool。所以投票最多的答案SoundPools是非常错误的！
让我介绍一下SoundPoolCompat哪些AudioTrack在引擎盖下使用并有自定义bufferSize。指定缓冲区内的所有数据都将被加载到内存中，并像SoundPool这样以很小的延迟播放。所有超过该值的数据bufferSize都将按需加载（这会增加延迟，类似于MediaPlayer）。Api 与 非常相似SoundPool，还添加了从 Uri 加载声音的功能（例如 gdrive）。并且有一种playOnce方法，文件播放后将卸载所有资源。
implementation 'com.olekdia:sound-pool:3.0.2'
于 2019-11-12T08:10:31.683 回答