问题描述
你好，
我正在使用mmsystem的wavout *函数播放音频.
I am using mmsystem's wavout* functions for audio playback.
我想在waveOutWrite函数之后立即删除分配的堆.我每次都会为新块分配512 * 16大小的新堆，并且出于内存管理的考虑，我想在waveOutWrite之后将其删除.
I want to delete the allocated heap immediately after waveOutWrite function. I am allocating new heap of 512 * 16 size for new chunk every time and I wanted to delete it after waveOutWrite, for the matter of memory management.
如果我这样做，可以在设备上使用吗?或waveOutWrite将使用我传递给它的waveHdr指针的引用，由于这个原因，我需要等待直到WOM_DONE回调删除分配的缓冲区?
If i do this, will it be ok for device? OR waveOutWrite will use the reference of the waveHdr pointer I have passed to it and due to this I need to wait until WOM_DONE callback to delete allocated buffer?
我每次都会为新块分配新的堆，以防止急促的音频播放.
I am allocating new heaps each time for new chunks for the purpose of anit-jerk audio playback.
谢谢.
推荐答案
分配内存是非常昂贵的操作.每次分配一个新缓冲区都比使用预先分配的缓冲区慢.
Allocating memory is a very expensive operation. Allocating a new buffer each time is going to be slower than using a pool of preallocated buffers.
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