void getChannel(Session.Channel chnl, BVCU_PUOneChannelInfo channel)
{
chnl.channelName = channel.szName;
BVCU.AVDirection avDir = BVCU.GetAVDirection(channel.iMediaDir);
chnl.audioPlayback = avDir.audioRecv;
chnl.speak = avDir.audioSnd;
chnl.video = avDir.videoRecv;
chnl.ptzIdx = channel.iPTZIndex;
chnl.channelNo = channel.iChannelIndex;
}