/// <summary>
/// 抓拍图片
/// </summary>
/// <param name="video">要抓拍的摄像机</param>
/// <param name="optimized">如果启用优化,则发现视频没有打开时不再尝试打开视频,而是直接返回</param>
/// <returns></returns>
public bool SnapShotTo(VideoSourceInfo video, string path, bool optimized)
{
bool success = false;
VideoPanel vp = videoGrid.VideoPanelCollection.SingleOrDefault(v => (v.VideoSource == video));
if (vp != null)
{
//如果没有启用视频抓拍性能优化功能,则在抓拍时如果视频没有打开,会先尝试打开视频,启用优化后,视频由地感检测车到时打开,在抓拍时就不负责打开视频
//这样的话如果系统中存在有问题的视频,也不会影响软件的处理速度
if (vp.Status != VideoStatus.Playing && !optimized)
{
vp.Play(false);
}
if (vp.Status == VideoStatus.Playing)
{
success = vp.SnapShotTo(path);
if (optimized)
{
lock (_TagLocker)
{
vp.Tag = success ? path : "fail"; //抓拍失败时也要通知下一次不要再继续抓拍了
}
}
}
}
return(success);
}
public void ProcessReport(ReportBase r)
{
ParkInfo park = ParkBuffer.Current.GetPark(r.ParkID);
if (park != null && park.RootParkID > 0)
{
park = ParkBuffer.Current.GetPark(park.RootParkID);
}
if (park == null)
{
return;
}
if (park.HostWorkstation == WorkStationInfo.CurrentStation.StationID) //如果本机是停车场的通讯主机,则它要负责抓拍图片
{
EntranceInfo entrance = ParkBuffer.Current.GetEntrance(r.EntranceID);
if (entrance != null)
{
foreach (VideoSourceInfo video in entrance.VideoSources)
{
if (r is CarSenseReport)
{
CarSenseReport cp = r as CarSenseReport;
if (cp.InOrOutFlag == 1) //车到时打开视频
{
VideoPanel vp = videoGrid.VideoPanelCollection.SingleOrDefault(v => (v.VideoSource == video));
if (vp != null)
{
if (UserSetting.Current.SnapshotWhenCarArrive) //车压地感时抓拍图片
{
string path = Path.Combine(TempFolderManager.GetCurrentFolder(),
string.Format("{0}_{1}_{2}.jpg", "CarArrive", Guid.NewGuid().ToString(), video.VideoID));
vp.Play(false);
if (vp.Status == VideoStatus.Playing && vp.SnapShotTo(path))
{
SnapShot shot = new SnapShot(cp.EventDateTime, video.VideoID, string.Empty, path);
(new SnapShotBll(AppSettings.CurrentSetting.ParkConnect)).Insert(shot);
}
}
else
{
vp.Play(true);
}
}
}
else
{
if (AppSettings.CurrentSetting.Optimized) //启用视频优化车走时关闭视频
{
VideoPanel vp = videoGrid.VideoPanelCollection.SingleOrDefault(v => (v.VideoSource == video));
if (vp != null)
{
vp.Close();
}
}
}
}
else if (r is CardEventReport)
{
CardEventReport cardEvent = r as CardEventReport;
if (cardEvent.EventStatus == CardEventStatus.Valid)
{
VideoPanel vp = videoGrid.VideoPanelCollection.SingleOrDefault(v => (v.VideoSource == video));
if (vp != null) //如果视频已经抓拍了一张,则此次用同一张图
{
object tag = null;
lock (_TagLocker) //加锁是防止多个线程同时写
{
tag = vp.Tag;
vp.Tag = null;
}
if (tag != null)
{
string path = tag.ToString();
if (path != "fail")
{
SnapShot shot = new SnapShot(cardEvent.EventDateTime, video.VideoID, cardEvent.CardID, path);
(new SnapShotBll(AppSettings.CurrentSetting.ParkConnect)).Insert(shot);
}
}
else
{
string path = Path.Combine(TempFolderManager.GetCurrentFolder(),
string.Format("{0}_{1}_{2}.jpg", "CardEvent", Guid.NewGuid().ToString(), video.VideoID));
if (SnapShotTo(video, path, false))
{
SnapShot shot = new SnapShot(cardEvent.EventDateTime, video.VideoID, cardEvent.CardID, path);
(new SnapShotBll(AppSettings.CurrentSetting.ParkConnect)).Insert(shot);
}
}
}
}
}
else if (r is AlarmReport)
{
AlarmReport ar = r as AlarmReport;
if (ar.AlarmType == Ralid.Park.BusinessModel.Enum.AlarmType.Opendoor)
{
string path = Path.Combine(TempFolderManager.GetCurrentFolder(),
string.Format("{0}_{1}_{2}.jpg", "OpenDoor", Guid.NewGuid().ToString(), video.VideoID));
if (SnapShotTo(video, path, false))
{
SnapShot shot = new SnapShot(ar.EventDateTime, video.VideoID, string.Empty, path);
(new SnapShotBll(AppSettings.CurrentSetting.ParkConnect)).Insert(shot);
}
}
}
}
}
}
}