private DecodeChannel FindOneFreeDecodeChannel()
{
//找得到就找
foreach (var VARIABLE in _listDecodeChannel)
{
if (VARIABLE.Value.IsUsed() == false)
{
return VARIABLE.Value;
}
}
//找不到就释放以前的解码通道
foreach (var VARIABLE in _listDecodeChannel)
{
if ((VARIABLE.Value.CurrentCardOutType!=CurrentCardOutType)||(VARIABLE.Value.CurrentCardOutId!=CurrentCardOutId))
{
foreach (var VARIABLE2 in _listDecodeChannel)
{
if ((VARIABLE2.Value.CurrentCardOutType == VARIABLE.Value.CurrentCardOutType) && (VARIABLE2.Value.CurrentCardOutId == VARIABLE.Value.CurrentCardOutId))
{
CloseHandle(VARIABLE2.Value.Handle);
DecodeChannel decodeChannel = new DecodeChannel();
decodeChannel.Id = VARIABLE2.Key;
_listDecodeChannel[decodeChannel.Id] = decodeChannel;
return decodeChannel;
}
}
}
}
//再找不到就从编号0的通道开始循环使用
DecodeChannel dc = new DecodeChannel();
dc.Id = CurrentDecodeChannel++;
_listDecodeChannel[dc.Id] = dc;
if (CurrentDecodeChannel >= TotalDecodeChannels)
{
CurrentDecodeChannel = 0;
}
return _listDecodeChannel[dc.Id];
}
public static void InitDecodeCard()
{
TotalDecodeChannels = (int)HikVisionSDK.GetDecodeChannelCount();
TotalDisplayChannels = (int)HikVisionSDK.GetDisplayChannelCount();
CurrentDecodeChannelCount = 0;
CurrentDisplayChannelCount = 0;
_listDecodeChannel = new Dictionary<int, DecodeChannel>(TotalDecodeChannels);
for (int i = 0; i < TotalDecodeChannels; i++)
{
DecodeChannel dc = new DecodeChannel();
dc.Id = i;
_listDecodeChannel.Add(i, dc);
}
}
public void ReleaseUsedScreen(UsedDisplayChannelInfo udci)
{
//
for(int i=0;i<AlUsedDisplayChannelInfo.Count;i++)
{
UsedDisplayChannelInfo tempudci = (UsedDisplayChannelInfo)(AlUsedDisplayChannelInfo[i]);
if ((tempudci.DefaultDisplayCameraId == udci.DefaultDisplayCameraId)&&(tempudci.SynGroupId == udci.SynGroupId)&&
(tempudci.GroupSwitchId == udci.GroupSwitchId) && (tempudci.ProgSwitchId == udci.ProgSwitchId))
{
//先释放相应的DecodeChannel
for (int j = 0; j < _listDecodeChannel.Count; j++)
{
DecodeChannel sc = _listDecodeChannel[i];
if ((sc.Handle == tempudci.Handle))
{
int tempid = sc.Id;
DecodeChannel newDC = new DecodeChannel();
newDC.Id = tempid;
_listDecodeChannel[newDC.Id] = newDC;
}
}
CloseHandle(tempudci.Handle);
AlUsedDisplayChannelInfo.RemoveAt(i--);
}
}
}