Question

FMOD::EventSystem       *EventSystem = 0;
FMOD::System            *System;
FMOD::EventProject      *Project;
FMOD::Event             *pEvent;
FMOD::Sound             *Sound;
FMOD_RESULT             result = FMOD_OK;

if(!FEV || !FSB)
    return 0;

result = FMOD::EventSystem_Create(&EventSystem);
    if(result != FMOD_OK)
        return 1;
EventSystem->getSystemObject(&System);

result = EventSystem->init(maxChannels, FMOD_INIT_NORMAL, 0, FMOD_EVENT_INIT_NORMAL);
    if(result != FMOD_OK)
        return 2;

FMOD_EVENT_LOADINFO loadinfo;
memset(&loadinfo, 0, sizeof(FMOD_EVENT_LOADINFO));
loadinfo.size = sizeof(FMOD_EVENT_LOADINFO);
loadinfo.loadfrommemory_length = FEV_len;

result = EventSystem->load((char*)FEV, &loadinfo, NULL);
    if(result != FMOD_OK)
        return 3;

result = EventSystem->getEvent(Event, FMOD_EVENT_ERROR_ON_DISKACCESS, &pEvent);
if(result == FMOD_ERR_FILE_UNWANTED)
{
    FMOD_CREATESOUNDEXINFO exinfo = {0};
    exinfo.cbsize = sizeof(FMOD_CREATESOUNDEXINFO);
    exinfo.length = FSB_len;

    result = System->createSound((const char*)FSB, FMOD_OPENMEMORY, &exinfo, &Sound);
        if(result != FMOD_OK)
            return 4;

    result = EventSystem->preloadFSB(FSB_name, 0, Sound);

    result = EventSystem->getEvent(Event, FMOD_EVENT_ERROR_ON_DISKACCESS, &pEvent);
        if(result != FMOD_OK)
            return 5;
}
else if(result != FMOD_OK)
    return 6;

for(int a=0; a<LoopsCount; a++)
{
    pEvent->start();

    FMOD_EVENT_STATE State = FMOD_EVENT_STATE_PLAYING;
    while(State == FMOD_EVENT_STATE_PLAYING)
    {
        pEvent->getState(&State);
        result = EventSystem->update();
        Sleep(300);
    }
}

EventSystem->unloadFSB(FSB_name, 0);

Sound->release();
EventSystem->release();

return 10;

我如何获得更小的内存使用量？如果我运行此代码将需要166MB的RAM。声音播放后，释放所有内存，内存使用量减少到9Mb RAM。 FSB有40mb。谢谢你的回答。

Answer 1

我正在寻找它，我发现了错误。 Fmod创建它自己的副本，因此每次播放声音时它都会复制内存。使用此：

System->createSound((const char*)FSB, 
    FMOD_SOFTWARE | FMOD_CREATECOMPRESSEDSAMPLE | FMOD_OPENMEMORY_POINT, 
    &exinfo, &Sound);

而不是：

System->createSound((const char*)FSB, FMOD_OPENMEMORY, &exinfo, &Sound);

如何使用fmod_event获得更小的内存使用量

1 个答案: