有一些 C++ 代码。我想知道为什么初始化列表(:OTMixerMgr(OTMediaType_Audio, oBridgeInfo)
)中的单个类成员可以使用两个值?因为通常只有一个值用于单个类成员,例如
ClassName::ClassName(): fisrtMember(firstValue) {...}.
OTMixerMgrAudio::OTMixerMgrAudio(OTObjectWrapper<OTBridgeInfo*> oBridgeInfo)
:OTMixerMgr(OTMediaType_Audio, oBridgeInfo)
{
m_phPullThread[0] = NULL;
m_phPullCond = NULL;
m_nLastTimerPull = 0;
m_bStarted = false;
m_bPaused = false;
OT_ASSERT(m_phProducersMutex = tsk_mutex_create());
OT_ASSERT(m_phConsumersMutex = tsk_mutex_create());
m_oMixerAudio = OTMixerAudio::New(oBridgeInfo);
m_bValid = (m_phConsumersMutex && m_oMixerAudio);
}
此代码取自 Telepresence 项目,https://code.google.com/p/telepresence/source/browse/trunk/source/OTMixerMgrAudio.cc? r=118 ,第 31 行
谢谢!