/// <summary>
/// 视频格式转为Flv
/// </summary>
/// <param name="vFileName">原视频文件地址</param>
/// <param name="ExportName">生成后的Flv文件地址</param>
public bool ConvertFlv(string vFileName, string ExportName)
{
if ((!System.IO.File.Exists(ffmpegtool)) || (!System.IO.File.Exists(NSWebPath.GetServerPath(vFileName))))
{
return(false);
}
vFileName = NSWebPath.GetServerPath(vFileName);
ExportName = NSWebPath.GetServerPath(ExportName);
string Command = " -i \"" + vFileName + "\" -y -ab 32 -ar 22050 -b 800000 -s 480*360 \"" + ExportName + "\""; //Flv格式
System.Diagnostics.Process p = new System.Diagnostics.Process();
p.StartInfo.FileName = ffmpegtool;
p.StartInfo.Arguments = Command;
p.StartInfo.WorkingDirectory = NSWebPath.GetServerPath("tools");
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardInput = true;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardError = true;
p.StartInfo.CreateNoWindow = false;
p.Start();
p.BeginErrorReadLine();
p.WaitForExit();
p.Close();
p.Dispose();
return(true);
}
/// <summary>
/// 运行mencoder的视频解码器转换
/// </summary>
public string MChangeFilePhy(string vFileName, string playFile, string imgFile)
{
string tool = NSWebPath.GetServerPath(VideoConvert.mencodertool);
if ((!System.IO.File.Exists(tool)) || (!System.IO.File.Exists(vFileName)))
{
return("");
}
string flv_file = System.IO.Path.ChangeExtension(playFile, ".flv");
string FlvImgSize = VideoConvert.sizeOfImg;
System.Diagnostics.ProcessStartInfo FilestartInfo = new System.Diagnostics.ProcessStartInfo(tool);
FilestartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
FilestartInfo.Arguments = " " + vFileName + " -o " + flv_file + " -of lavf -lavfopts i_certify_that_my_video_stream_does_not_use_b_frames -oac mp3lame -lameopts abr:br=56 -ovc lavc -lavcopts vcodec=flv:vbitrate=200:mbd=2:mv0:trell:v4mv:cbp:last_pred=1:dia=-1:cmp=0:vb_strategy=1 -vf scale=" + widthOfFile + ":" + heightOfFile + " -ofps 12 -srate 22050";
try
{
System.Diagnostics.Process.Start(FilestartInfo);
CatchImg(flv_file, imgFile);
}
catch
{
return("");
}
return("");
}
/// <summary>
/// 删除文件
/// </summary>
/// <param name="file">要删除的文件路径和名称</param>
public static void DeleteFile(string file)
{
if (File.Exists(NSWebPath.GetServerPath(file)))
{
File.Delete(NSWebPath.GetServerPath(file));
}
}
protected string Read_Txt(string filename)
{
Encoding code = Encoding.GetEncoding("gb2312");
string temp = NSWebPath.GetServerPath("Precious\\" + filename + ".txt");
string str = "";
if (File.Exists(temp))
{
StreamReader sr = null;
try
{
sr = new StreamReader(temp, code);
str = sr.ReadToEnd(); // 读取文件
}
catch { }
sr.Close();
sr.Dispose();
}
else
{
str = "";
}
return(str);
}
/// <summary>
/// 转换文件并保存在指定文件夹下
/// </summary>
/// <param name="fileName">上传视频文件的路径（原文件）</param>
/// <param name="playFile">转换后的文件的路径（网络播放文件）</param>
/// <param name="imgFile">从视频文件中抓取的图片路径</param>
/// <returns>成功:返回图片虚拟地址;失败:返回空字符串</returns>
public string ChangeFilePhy(string fileName, string playFile, string imgFile)
{
string ffmpeg = NSWebPath.GetServerPath(VideoConvert.ffmpegtool);
if ((!System.IO.File.Exists(ffmpeg)) || (!System.IO.File.Exists(fileName)))
{
return("");
}
string flv_file = System.IO.Path.ChangeExtension(playFile, ".flv");
string FlvImgSize = VideoConvert.sizeOfImg;
System.Diagnostics.ProcessStartInfo FilestartInfo = new System.Diagnostics.ProcessStartInfo(ffmpeg);
FilestartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
FilestartInfo.Arguments = " -i " + fileName + " -ab 56 -ar 22050 -b 500 -r 15 -s " + widthOfFile + "x" + heightOfFile + " " + flv_file;
try
{
System.Diagnostics.Process.Start(FilestartInfo); //转换
CatchImg(fileName, imgFile); //截图
}
catch
{
return("");
}
return("");
}
/// <summary>
/// 删除指定目录及其所有子目录
/// </summary>
/// <param name="directoryPath">指定目录的绝对路径</param>
public static void DeleteDirectory(string directoryPath)
{
directoryPath = NSWebPath.GetServerPath(directoryPath);
if (IsExistDirectory(directoryPath))
{
Directory.Delete(directoryPath, true);
}
}
/// <summary>
/// 移动文件(剪贴--粘贴)
/// </summary>
/// <param name="dir1">要移动的文件的路径及全名(包括后缀)</param>
/// <param name="dir2">文件移动到新的位置,并指定新的文件名</param>
public static void MoveFile(string dir1, string dir2)
{
dir1 = dir1.Replace("/", "\\");
dir2 = dir2.Replace("/", "\\");
if (File.Exists(NSWebPath.GetServerPath(dir1)))
{
File.Move(NSWebPath.GetServerPath(dir1), NSWebPath.GetServerPath(dir2));
}
}
/// <summary>
/// 复制文件
/// </summary>
/// <param name="dir1">要复制的文件的路径已经全名(包括后缀)</param>
/// <param name="dir2">目标位置,并指定新的文件名</param>
public static void CopyFile(string dir1, string dir2)
{
dir1 = dir1.Replace("/", "\\");
dir2 = dir2.Replace("/", "\\");
if (File.Exists(NSWebPath.GetServerPath(dir1)))
{
File.Copy(NSWebPath.GetServerPath(dir1), NSWebPath.GetServerPath(dir2), true);
}
}
static LogFactory()
{
XmlDocument log4netConfig = new XmlDocument();
log4netConfig.Load(File.OpenRead(NSWebPath.GetServerPath("/XmlConfig/log4net.config")));
repo = log4net.LogManager.CreateRepository(Assembly.GetEntryAssembly(),
typeof(log4net.Repository.Hierarchy.Hierarchy));
log4net.Config.XmlConfigurator.Configure(repo, log4netConfig["log4net"]);
}
/// <summary>
/// 路径转换（转换成绝对路径）
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
public static string WebPathTran(string path)
{
try
{
return(NSWebPath.GetServerPath(path));
}
catch
{
return(path);
}
}
/// <summary>
/// 创建文件
/// </summary>
/// <param name="dir">带后缀的文件名</param>
/// <param name="pagestr">文件内容</param>
public static void CreateFile(string dir, string pagestr)
{
dir = dir.Replace("/", "\\");
if (dir.IndexOf("\\") > -1)
{
CreateDir(dir.Substring(0, dir.LastIndexOf("\\")));
}
System.IO.StreamWriter sw = new System.IO.StreamWriter(NSWebPath.GetServerPath(dir), false, System.Text.Encoding.GetEncoding("GB2312"));
sw.Write(pagestr);
sw.Close();
}
/// <summary>
/// 删除目录
/// </summary>
/// <param name="dir">要删除的目录路径和名称</param>
public static void DeleteDir(string dir)
{
if (dir.Length == 0)
{
return;
}
if (Directory.Exists(NSWebPath.GetServerPath(dir)))
{
Directory.Delete(NSWebPath.GetServerPath(dir));
}
}
public Log4netProvider()
{
XmlDocument log4netConfig = new XmlDocument();
log4netConfig.Load(File.OpenRead(NSWebPath.GetServerPath("/XmlConfig/log4net.config")));
repo = log4net.LogManager.CreateRepository(Assembly.GetEntryAssembly(),
typeof(log4net.Repository.Hierarchy.Hierarchy));
log4net.Config.XmlConfigurator.Configure(repo, log4netConfig["log4net"]);
//log4net.Config.XmlConfigurator.Configure(new FileInfo(System.IO.Path.Combine(System.AppDomain.CurrentDomain.BaseDirectory, "Config", "log4net.xml")));
log4netLogger = log4net.LogManager.GetLogger(this.GetType());
}
/// <summary>
/// 清空指定目录下所有文件及子目录,但该目录依然保存.
/// </summary>
/// <param name="directoryPath">指定目录的绝对路径</param>
public static void ClearDirectory(string directoryPath)
{
directoryPath = NSWebPath.GetServerPath(directoryPath);
if (IsExistDirectory(directoryPath))
{
//删除目录中所有的文件
string[] fileNames = GetFileNames(directoryPath);
for (int i = 0; i < fileNames.Length; i++)
{
DeleteFile(fileNames[i]);
}
//删除目录中所有的子目录
string[] directoryNames = GetDirectories(directoryPath);
for (int i = 0; i < directoryNames.Length; i++)
{
DeleteDirectory(directoryNames[i]);
}
}
}
protected void Write_Txt(string FileName, string Content)
{
Encoding code = Encoding.GetEncoding("gb2312");
string htmlfilename = NSWebPath.GetServerPath("Precious\\" + FileName + ".txt"); //保存文件的路径
string str = Content;
StreamWriter sw = null;
{
try
{
sw = new StreamWriter(htmlfilename, false, code);
sw.Write(str);
sw.Flush();
}
catch { }
}
sw.Close();
sw.Dispose();
}
/// <summary>
/// 生成Flv视频的缩略图
/// </summary>
/// <param name="vFileName">视频文件地址</param>
/// <returns>返回视频缩略图位置</returns>
public string CatchImg(string vFileName)
{
if ((!System.IO.File.Exists(ffmpegtool)) || (!System.IO.File.Exists(NSWebPath.GetServerPath(vFileName))))
{
return("");
}
try
{
string flv_img_p = vFileName.Substring(0, vFileName.Length - 4) + ".jpg";
string Command = " -i " + NSWebPath.GetServerPath(vFileName) + " -y -f image2 -t 0.1 -s " + sizeOfImg + " " + NSWebPath.GetServerPath(flv_img_p);
System.Diagnostics.Process p = new System.Diagnostics.Process();
p.StartInfo.FileName = ffmpegtool;
p.StartInfo.Arguments = Command;
p.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Normal;
try
{
p.Start();
}
catch
{
return("");
}
finally
{
p.Close();
p.Dispose();
}
System.Threading.Thread.Sleep(4000);
//注意:图片截取成功后,数据由内存缓存写到磁盘需要时间较长,大概在3,4秒甚至更长;
if (System.IO.File.Exists(NSWebPath.GetServerPath(flv_img_p)))
{
return(flv_img_p);
}
return("");
}
catch
{
return("");
}
}
/// <summary>
/// Get the absolute path of the file, for the window program and web program can be used
/// </summary>
/// <param name="relativePath">Relative path address</param>
/// <returns>Absolute path address</returns>
public static string GetAbsolutePath(string relativePath)
{
if (string.IsNullOrEmpty(relativePath))
{
throw new ArgumentNullException("para relativePath is not null！");
}
relativePath = relativePath.Replace("/", "\\");
if (relativePath[0] == '\\')
{
relativePath = relativePath.Remove(0, 1);
}
//Judgment is the Web program or window program
if (NSHttpContext.Current != null)
{
return(NSWebPath.GetServerPath(relativePath));//Path.Combine(NSHttpRuntime.AppDomainAppPath, relativePath);
}
else
{
return(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, relativePath));
}
}
/// <summary>
/// 根据Key修改Value
/// </summary>
/// <param name="key">要修改的Key</param>
/// <param name="value">要修改为的值</param>
public static void SetValue(string key, string value)
{
System.Xml.XmlDocument xDoc = new System.Xml.XmlDocument();
xDoc.Load(NSWebPath.GetServerPath("/XmlConfig/Config.xml"));
System.Xml.XmlNode xNode;
System.Xml.XmlElement xElem1;
System.Xml.XmlElement xElem2;
xNode = xDoc.SelectSingleNode("//appSettings");
xElem1 = (System.Xml.XmlElement)xNode.SelectSingleNode("//add[@key='" + key + "']");
if (xElem1 != null)
{
xElem1.SetAttribute("value", value);
}
else
{
xElem2 = xDoc.CreateElement("add");
xElem2.SetAttribute("key", key);
xElem2.SetAttribute("value", value);
xNode.AppendChild(xElem2);
}
xDoc.Save(NSWebPath.GetServerPath("/XmlConfig/Config.xml"));
}
public string CatchImg(string fileName, string imgFile)
{
string ffmpeg = NSWebPath.GetServerPath(VideoConvert.ffmpegtool);
string flv_img = imgFile + ".jpg";
string FlvImgSize = VideoConvert.sizeOfImg;
System.Diagnostics.ProcessStartInfo ImgstartInfo = new System.Diagnostics.ProcessStartInfo(ffmpeg);
ImgstartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
ImgstartInfo.Arguments = " -i " + fileName + " -y -f image2 -ss 2 -vframes 1 -s " + FlvImgSize + " " + flv_img;
try
{
System.Diagnostics.Process.Start(ImgstartInfo);
}
catch
{
return("");
}
if (System.IO.File.Exists(flv_img))
{
return(flv_img);
}
return("");
}
/// <summary>
/// 转换文件并保存在指定文件夹下
/// </summary>
/// <param name="fileName">上传视频文件的路径（原文件）</param>
/// <param name="playFile">转换后的文件的路径（网络播放文件）</param>
/// <param name="imgFile">从视频文件中抓取的图片路径</param>
/// <returns>成功:返回图片虚拟地址;失败:返回空字符串</returns>
public string ChangeFileVir(string fileName, string playFile, string imgFile)
{
string ffmpeg = NSWebPath.GetServerPath(VideoConvert.ffmpegtool);
if ((!System.IO.File.Exists(ffmpeg)) || (!System.IO.File.Exists(fileName)))
{
return("");
}
string flv_img = System.IO.Path.ChangeExtension(NSWebPath.GetServerPath(imgFile), ".jpg");
string flv_file = System.IO.Path.ChangeExtension(NSWebPath.GetServerPath(playFile), ".flv");
string FlvImgSize = VideoConvert.sizeOfImg;
System.Diagnostics.ProcessStartInfo ImgstartInfo = new System.Diagnostics.ProcessStartInfo(ffmpeg);
ImgstartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
ImgstartInfo.Arguments = " -i " + fileName + " -y -f image2 -t 0.001 -s " + FlvImgSize + " " + flv_img;
System.Diagnostics.ProcessStartInfo FilestartInfo = new System.Diagnostics.ProcessStartInfo(ffmpeg);
FilestartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
FilestartInfo.Arguments = " -i " + fileName + " -ab 56 -ar 22050 -b 500 -r 15 -s " + widthOfFile + "x" + heightOfFile + " " + flv_file;
try
{
System.Diagnostics.Process.Start(FilestartInfo);
System.Diagnostics.Process.Start(ImgstartInfo);
}
catch
{
return("");
}
///注意:图片截取成功后,数据由内存缓存写到磁盘需要时间较长,大概在3,4秒甚至更长;
///这儿需要延时后再检测,我服务器延时8秒,即如果超过8秒图片仍不存在,认为截图失败;
if (System.IO.File.Exists(flv_img))
{
return(flv_img);
}
return("");
}
/// <summary>
/// 本地路径
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
public static string MapPath(string path)
{
return(NSWebPath.GetServerPath(path));
}
public RequestWrapper LoadSettingXml(string url)
{
settingXml = XElement.Load(NSWebPath.GetServerPath(url)).ToString();
return(this);
}
/// <summary>
/// 获取文件相对路径映射的物理路径
/// </summary>
/// <param name="virtualPath">文件的相对路径</param>
public static string GetPath(string virtualPath)
{
return(NSWebPath.GetServerPath(virtualPath));
}
/// <summary>
/// 实现解压缩，需要rar.exe上传到网站根目录
/// </summary>
/// <param name="s"></param>
/// <param name="d"></param>
/// <example>unrar("e:/www.svnhost.cn.rar", "e:/");</example>
public static void UnRar(string s, string d)
{
ExeCommand(NSWebPath.GetServerPath("rar.exe") + " x \"" + s + "\" \"" + d + "\" -o+");
}
