private void runVideoInfosTimePeriods(VideoDataInfoParam infosParam)
{
Parallel.ForEach(infosParam.VideoInfos, videoInfo =>
{
readVideoTimePeriodsPacket(infosParam, infosParam, videoInfo);
});
}
private void updateVideoInfosTimePeriods(VideoDataInfoParam infosParam)
{//TODO:获取视频列表在指定时间段内的视频分布信息
Logger.Default.Trace("获取 {0} - {1} 时间内 {2} 路视频资源分布。", infosParam.BeginTime, infosParam.EndTime, infosParam.VideoInfos.Length);
new Thread(() => runVideoInfosTimePeriods(infosParam))
{
IsBackground = true
}.Start();
}
public void TestVideoDataInfoParam()
{
VideoInfo[] vis = new VideoInfo[] { new VideoInfo("videoId1", 2), new VideoInfo("videoId2", 1) };
DateTime begin = new DateTime(2016, 5, 5, 13, 40, 1, 1);
DateTime end = new DateTime(2016, 5, 5, 13, 45, 0);
VideoDataInfoParam param = new VideoDataInfoParam("127.0.0.1", 10001, vis, begin, end);
byte[] buffer = VideoDataInfoParam.Encode(param);
VideoDataInfoParam param2 = VideoDataInfoParam.Decode(buffer);
AssertAreEqual(param, param2);
}
private void AssertAreEqual(VideoDataInfoParam p1, VideoDataInfoParam p2)
{
Assert.AreEqual(p1.SourceIp, p2.SourceIp);
Assert.AreEqual(p1.SourcePort, p2.SourcePort);
Assert.AreEqual(p1.BeginTime, p2.BeginTime);
Assert.AreEqual(p1.EndTime, p2.EndTime);
Assert.AreEqual(p1.VideoInfos.Length, p2.VideoInfos.Length);
for (int i = 0; i < p1.VideoInfos.Length; i++)
{
Assert.AreEqual(p1.VideoInfos[i].VideoId, p2.VideoInfos[i].VideoId);
Assert.AreEqual(p1.VideoInfos[i].StreamId, p2.VideoInfos[i].StreamId);
}
}
public void GetVideoDataInfoAsync(VideoInfo[] vis, DateTime begin, DateTime end)
{
if (!SourceValid)
{
throw new ErrorMessageException("尚未设置数据源地址。");
}
if (_src.SrcType == SourceType.Local)
{
if (_localVideos != null && _localVideos.ValidTimePeriods != null)
{
//启动线程模拟异步事件。
new Thread(() =>
{
foreach (VideoInfo vi in vis)
{
VideoTimePeriodsPacket rst = _localVideos.ValidTimePeriods.FirstOrDefault(vtpp => vtpp.VideoId == vi.VideoId);
if (rst != null)
{
OnVideoDataInfoReceived(rst);
}
}
})
{
IsBackground = true
}.Start();
}
}
else
{
EnsureStart();
if (_src.Storage != null)
{
VideoDataInfoParam param = new VideoDataInfoParam(_src.Storage.Ip, _src.Storage.Port, vis, begin, end);
Client.Send((int)ParamCode.VideoInfosTimePeriods, VideoDataInfoParam.Encode(param));
}
else
{
throw new ErrorMessageException("未配置集中存储相关信息。");
}
}
}
private void onReceiveCompleted(object sender, ReceiveEventArgs args)
{
try
{
if (args.ByteLength > 0)
{
using (MemoryStream ms = new MemoryStream(args.ReceivedBytes))
{
ParamCode code = (ParamCode)PacketBase.ReadInt(ms);
byte[] buffer = null;
switch (code)
{
case ParamCode.VideoInfosTimePeriods:
updateVideoInfosTimePeriods(VideoDataInfoParam.Decode(ms));
break;
case ParamCode.DownloadBegin:
beginDownload(DownloadInfoParam.Decode(ms));
break;
case ParamCode.DownloadToLocal:
downloadToLocal(PacketBase.ReadString(ms));
break;
case ParamCode.VideoPacket:
getVideoStreamsPacket(VideoDataParam.Decode(ms));
break;
case ParamCode.ProbeTime:
setProbeTime(PacketBase.ReadTime(ms));
break;
case ParamCode.DownloadInfosAll:
feedbackDownloadInfosToClient();
break;
case ParamCode.DownloadControl:
var controlCode = (DownloadControlCode)PacketBase.ReadInt(ms);
onDownloadControl(controlCode, ms);
break;
case ParamCode.LocalDownloadPath:
onLocalDownloadPath(PacketBase.ReadString(ms));
break;
case ParamCode.LocalDownloadBegin:
onLocalDownloadStart(LocalDownloadInfoPacket.Decode(ms));
break;
}
if (buffer != null)
{
send((ParamCode)code, buffer);
}
}
}
}
catch (IOException ex)
{
sendMessage(MessageType.Warn, ex.Message, null);
}
catch (Exception ex)
{
sendMessage(MessageType.Error, ex.Message, null);
Console.WriteLine(ex.ToString());
}
}