SLDataLocator_AndroidSimpleBufferQueue的缓冲区大小是多少？

Question

如果我使用以下代码创建音频播放器实例：

SLDataLocator_AndroidSimpleBufferQueue loc_bufq = {SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE, 2};

SLDataFormat_PCM format_pcm = ...

SLDataSource audioSrc = {&loc_bufq, &format_pcm};

SLDataLocator_OutputMix loc_outmix = {SL_DATALOCATOR_OUTPUTMIX, oslContext.GetOutputMixObject()};
SLDataSink audioSnk = {&loc_outmix, nullptr};

const SLInterfaceID ids[2] = {SL_IID_ANDROIDSIMPLEBUFFERQUEUE, SL_IID_VOLUME};
const SLboolean req[2] = {SL_BOOLEAN_TRUE, SL_BOOLEAN_TRUE};

CheckOsl((*engine)->CreateAudioPlayer(engine, &playerObj, &audioSrc, &audioSnk, 2, ids, req));

// get the buffer queue interface
CheckOsl((*playerObj)->GetInterface(playerObj, SL_IID_ANDROIDSIMPLEBUFFERQUEUE, &bufferQueueI));

如何确定我可以入队的缓冲区的最大长度

CheckOsl((*bufferQueueI)->Enqueue(bufferQueueI, GetBuffer() , GetSize()));

？