public static MPDdata readXml(string XmlPath)
{
XmlDocument xmlDoc = new XmlDocument();
if (!System.IO.File.Exists(XmlPath))
{
return(null);
}
xmlDoc.Load(XmlPath);
//从Xml提取到data
XmlNode nodeMPD = xmlDoc.SelectSingleNode("MPD");
XmlNode nodeTilePosition = nodeMPD.SelectSingleNode("tilePosition");
XmlNode nodeTileLumi = nodeMPD.SelectSingleNode("tileLumi");
XmlNode nodeTileDoF = nodeMPD.SelectSingleNode("tileDoF");
XmlNode nodeObjectTraj = nodeMPD.SelectSingleNode("objectTraj");
XmlNode nodeLookupTable = nodeMPD.SelectSingleNode("lookupTable");
MPDdata data = new MPDdata();
data.tilePosition = StringToUTF8ByteArray(((XmlCDataSection)nodeTilePosition).InnerText.Trim());
data.tileLumi = StringToUTF8ByteArray(((XmlCDataSection)nodeTileLumi).InnerText.Trim());
data.tileDoF = StringToUTF8ByteArray(((XmlCDataSection)nodeTileDoF).InnerText.Trim());
data.tileObjectTraj = StringToUTF8ByteArray(((XmlCDataSection)nodeObjectTraj).InnerText.Trim());
data.tileLookupTable = StringToUTF8ByteArray(((XmlCDataSection)nodeLookupTable).InnerText.Trim());
return(data);
}
static void Main(string[] args)
{
//server
WebServer.Main();
//clientMPDdata
MPDdata data = MPDclient.requestMPDdata(1256);
}
//根据文件名提取出客户端请求的MPD，存储到本地
public static bool genFile(string sPhysicalFilePath)
{
try
{
int fileNameStart = sPhysicalFilePath.LastIndexOf('/');
int videoID = int.Parse(sPhysicalFilePath.Substring(fileNameStart + 1, 4));
MPDdata data = MPDdata.getServerData(videoID);
return(WriteXml(data, sPhysicalFilePath));
}
catch
{
return(false);
}
}
public static bool WriteXml(MPDdata data, string sFilePath)
{
try
{
XmlTextWriter xml = new XmlTextWriter(sFilePath, Encoding.UTF8);
xml.Formatting = Formatting.Indented;
xml.WriteStartDocument();
xml.WriteStartElement("MPD");
xml.WriteStartElement("tilePosition");
//CData可以防止特殊字符影响提取xml
xml.WriteCData(UTF8ByteArrayToString(data.tilePosition));
xml.WriteEndElement();
xml.WriteStartElement("tileLumi");
xml.WriteCData(UTF8ByteArrayToString(data.tileLumi));
xml.WriteEndElement();
xml.WriteStartElement("tileDoF");
xml.WriteCData(UTF8ByteArrayToString(data.tileDoF));
xml.WriteEndElement();
xml.WriteStartElement("objectTraj");
xml.WriteCData(UTF8ByteArrayToString(data.objectTraj));
xml.WriteEndElement();
xml.WriteStartElement("lookupTable");
xml.WriteCData(UTF8ByteArrayToString(data.lookupTable));
xml.WriteEndElement();
xml.WriteEndElement();
xml.WriteEndDocument();
xml.Flush();
xml.Close();
return(true);
}
catch (Exception e)
{
return(false);
}
}
//在服务器上，给定videoID和sec，根据PSPNR等数据生成一个MPDdata
public static MPDdata getServerData(int videoID)
{
//TODO
MPDdata newData = new MPDdata(30, 10);
try
{
string vidMatPath = matPath + "/" + videoID.ToString("D4");
using (FileStream fs = new FileStream(vidMatPath + "/tilePosition.mat", FileMode.Open, FileAccess.Read))
{
newData.tilePosition = new byte[fs.Length];
fs.Read(newData.tilePosition, 0, (int)fs.Length);
}
using (FileStream fs = new FileStream(vidMatPath + "/tileLumi.mat", FileMode.Open, FileAccess.Read))
{
newData.tileLumi = new byte[fs.Length];
fs.Read(newData.tileLumi, 0, (int)fs.Length);
}
using (FileStream fs = new FileStream(vidMatPath + "/tileDoF.mat", FileMode.Open, FileAccess.Read))
{
newData.tileDoF = new byte[fs.Length];
fs.Read(newData.tileDoF, 0, (int)fs.Length);
}
using (FileStream fs = new FileStream(vidMatPath + "/objectTraj.mat", FileMode.Open, FileAccess.Read))
{
newData.objectTraj = new byte[fs.Length];
fs.Read(newData.objectTraj, 0, (int)fs.Length);
}
using (FileStream fs = new FileStream(vidMatPath + "/lookupTable.mat", FileMode.Open, FileAccess.Read))
{
newData.lookupTable = new byte[fs.Length];
fs.Read(newData.lookupTable, 0, (int)fs.Length);
}
return(newData);
}catch (Exception e)
{
Console.WriteLine(e);
return(null);
}
}
