public DownloadInfo StopGetNVSVideo(DownloadInfo info)
{
try
{
Log.Info("NVS", "StopGetNVSVideo:" + info);
NVSManage.GetPlayBackFormEx(info.Ip, (f, s) => { f.Stop(); });
return(info);
}
catch (Exception e)
{
Log.Error("NVS", "LocationService.StopGetNVSVideo:" + ToString());
return(null);
}
}
public DownloadInfo StartGetNVSVideo(DownloadInfo info)
{
try
{
Log.Info("NVS", "StartGetNVSVideo:" + info);
if (info == null)
{
return(null);
}
//客户端可以把IP（录像机的IP)和Channel传过来(不用查数据库)，也可以只传一个摄像机Id（要查数据库）
if (string.IsNullOrEmpty(info.Ip) || string.IsNullOrEmpty(info.Channel))
{
Log.Info("NVS", "GetIpAndChannelFormDb");
if (!GetIpAndChannelFormDb(info))//GetIpAndChannelFormDb里面会填充Ip和Channel信息，但是没有找到摄像头的话就返回了。
{
info.Result = false;
info.Message = "camera == null";
return(info);
}
}
Log.Info("NVS", "info:" + info);
var start = info.StartTime.ToDateTime();
var end = info.EndTime.ToDateTime();
var file = Downloader.GetFileName(info.Ip, info.Channel, 1, start, end);//视频文件的名称（预订）
Log.Info("NVS", string.Format("start:{0},end:{1},file:{2}", start, end, file));
var filePath = AppDomain.CurrentDomain.BaseDirectory + "\\" + file;
Log.Info("NVS", string.Format("filePath:{0}", filePath));
if (Downloader.IsFileExist(file))//文件已经存在
{
string url = Downloader.GetHlsUrl(NVSManage.RTMP_Host, file);
info.Url = url;
info.Result = true;
info.Message = "ExistFile";
Log.Info("NVS", string.Format("ExistFile url:{0}", url));
}
else
{
var waitForLogin = true;
NVSManage.GetPlayBackFormEx(info.Ip, (form1, loginState) =>
{
Log.Info("NVS", string.Format("loginState:{0}", loginState));
if (loginState)
{
var channel = info.Channel.ToInt();
var r = form1.Download(channel, start, end);//有文件正在下载的情况
info.Result = r;
if (r == false)
{
Log.Error("NVS", form1.Message);
info.Message = form1.Message;
}
else
{
info.DId = form1.downloader.m_iDLTimeId;//下载用的Id,查询下载进度用
}
}
else
{
info.Result = false;
info.Message = form1.Message;
}
waitForLogin = false;
});
for (int i = 0; i < 300; i++)//等待登录结果
{
if (waitForLogin == false)
{
break;
}
Application.DoEvents();
Thread.Sleep(50);//等待登录结果
}
}
Log.Info("NVS", string.Format("Return:{0}", info));
return(info);
}
catch (Exception e)
{
Log.Error("NVS", "LocationService.StartGetNVSVideo:" + e.ToString());
return(null);
}
}