成员的完整列表，这些成员属于 JCMediaChannelPropChangeParam,包括所有继承而来的类成员

	audioOutput	JCMediaChannelPropChangeParam
	cdnState	JCMediaChannelPropChangeParam
	recordState	JCMediaChannelPropChangeParam
	screenShare	JCMediaChannelPropChangeParam
	title	JCMediaChannelPropChangeParam
	uploadLocalAudio	JCMediaChannelPropChangeParam
	uploadLocalVideo	JCMediaChannelPropChangeParam