/// <summary>
/// 获取系统负载率
/// </summary>
/// <returns></returns>
public static LoadAverage GetLoadAverage()
{
try
{
string std = "";
string err = "";
string cmd = "top - bn1 | awk '/average:/ '";
var ret = ProcessShell.Run(cmd, 1000, out std, out err);
if (ret)
{
if (!string.IsNullOrEmpty(std))
{
int pos_start = 0;
pos_start = std.IndexOf("load average:", StringComparison.Ordinal);
if (pos_start > 0)
{
std = std.Substring(pos_start + "load average:".Length).Trim();
}
string[] loadaverageinfo = std.Split(',');
if (loadaverageinfo.Length == 3)
{
var loadAverage = new LoadAverage();
loadAverage.LoadAverageMin1 = float.Parse((loadaverageinfo[0]).Trim());
loadAverage.LoadAverageMin5 = float.Parse((loadaverageinfo[1]).Trim());
loadAverage.LoadAverageMin15 = float.Parse((loadaverageinfo[2]).Trim());
return(loadAverage);
}
}
if (!string.IsNullOrEmpty(err))
{
int pos_start = 0;
pos_start = err.IndexOf("load average:", StringComparison.Ordinal);
if (pos_start > 0)
{
err = err.Substring(pos_start + "load average:".Length).Trim();
}
string[] loadaverageinfo = err.Split(',');
if (loadaverageinfo.Length == 3)
{
var loadAverage = new LoadAverage();
loadAverage.LoadAverageMin1 = float.Parse((loadaverageinfo[0]).Trim());
loadAverage.LoadAverageMin5 = float.Parse((loadaverageinfo[1]).Trim());
loadAverage.LoadAverageMin15 = float.Parse((loadaverageinfo[2]).Trim());
return(loadAverage);
}
}
}
}
catch
{
return(null);
}
return(null);
}
/// <summary>
/// 获取pid
/// </summary>
/// <param name="processName"></param>
/// <returns></returns>
public static int GetProcessPid(string processName)
{
string cmd = "";
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
cmd = "ps -aux |grep " + processName + "|grep -v grep|awk \'{print $2}\'";
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
cmd = "ps -A |grep " + processName + "|grep -v grep|awk \'{print $1}\'";
}
ProcessShell.Run(cmd, 1000, out string std, out string err);
if (string.IsNullOrEmpty(std) && string.IsNullOrEmpty(err))
{
return(-1);
}
int pid = -1;
if (!string.IsNullOrEmpty(std))
{
int.TryParse(std, out pid);
}
if (!string.IsNullOrEmpty(err))
{
int.TryParse(err, out pid);
}
return(pid);
}
/// <summary>
/// 获取cpu使用率和空闲率
/// </summary>
/// <returns></returns>
public static CPUInfo GetCPUused()
{
try
{
string std = "";
string err = "";
string cmd = "top -bn1 | awk '/%Cpu/ {print $2+$4,$8}'";
var ret = ProcessShell.Run(cmd, 1000, out std, out err);
if (ret)
{
if (!string.IsNullOrEmpty(std))
{
string[] cpuinfo = std.Split(' ');
if (cpuinfo.Length == 2)
{
CPUInfo result = new CPUInfo();
result.CpuIdle = float.Parse(cpuinfo[1]);
result.CpuUsed = float.Parse(cpuinfo[0]);
return(result);
}
}
if (!string.IsNullOrEmpty(err))
{
string[] cpuinfo = err.Split(' ');
if (cpuinfo.Length == 2)
{
CPUInfo result = new CPUInfo();
result.CpuIdle = float.Parse(cpuinfo[1]);
result.CpuUsed = float.Parse(cpuinfo[0]);
return(result);
}
}
}
}
catch
{
return(null);
}
return(null);
}
private static bool ifNotMp4(string ffmpegBinPath, string videoFilePath, out string videoPath)
{
string ext = Path.GetExtension(videoFilePath);
string newFileName = videoFilePath.Replace(ext, ".mp4");
string ffmpegCmd = ffmpegBinPath + " -i " + videoFilePath + " -c copy -movflags faststart " +
newFileName;
videoPath = newFileName;
if (!string.IsNullOrEmpty(ext) && !ext.Trim().ToLower().Equals(".mp4"))
{
if (ProcessShell.Run(ffmpegCmd, 60 * 1000 * 5, out string std, out string err))
{
if (!string.IsNullOrEmpty(std) || !string.IsNullOrEmpty(err))
{
if (File.Exists(newFileName))
{
FileInfo fi = new FileInfo(newFileName);
if (fi.Length > 100)
{
File.Delete(videoFilePath);
return(true);
}
return(false);
}
return(false);
}
return(false);
}
}
return(true);
}
/// <summary>
/// 输出视频的时长（毫秒）
/// </summary>
/// <param name="ffmpegBinPath"></param>
/// <param name="videoFilePath"></param>
/// <param name="duartion"></param>
/// <param name="path"></param>
/// <returns></returns>
public static bool GetDuration(string ffmpegBinPath, string videoFilePath, out long duartion, out string path)
{
duartion = -1;
if (File.Exists(ffmpegBinPath) && File.Exists(videoFilePath))
{
string newPath = "";
var ret = ifNotMp4(ffmpegBinPath, videoFilePath, out newPath);
if (ret)
{
videoFilePath = newPath;
}
path = videoFilePath;
string cmd = ffmpegBinPath + " -i " + videoFilePath;
if (ProcessShell.Run(cmd, 1000, out string std, out string err))
{
if (!string.IsNullOrEmpty(std) || !string.IsNullOrEmpty(err))
{
string tmp = "";
if (!string.IsNullOrEmpty(std))
{
tmp = Common.GetValue(std, "Duration:", ",");
}
if (string.IsNullOrEmpty(tmp))
{
tmp = Common.GetValue(err, "Duration:", ",");
}
if (!string.IsNullOrEmpty(tmp))
{
string[] tmpArr = tmp.Split(':', StringSplitOptions.RemoveEmptyEntries);
if (tmpArr.Length == 3)
{
int hour = int.Parse(tmpArr[0]);
int min = int.Parse(tmpArr[1]);
int sec = 0;
int msec = 0;
if (tmpArr[2].Contains('.'))
{
string[] tmpArr2 = tmpArr[2].Split('.', StringSplitOptions.RemoveEmptyEntries);
sec = int.Parse(tmpArr2[0]);
msec = int.Parse(tmpArr2[1]);
}
else
{
sec = int.Parse(tmpArr[2]);
}
hour = hour * 3600; //换成秒数
min = min * 60;
sec = sec + hour + min; //合计秒数
duartion = sec * 1000 + (msec * 10); //算成毫秒
/*
* LogWriter.WriteLog("获取视频时长：" + duartion.ToString() + "毫秒", videoFilePath);
*/
return(true);
}
}
}
}
}
path = videoFilePath;
return(false);
}
public static void KillProcess(int pid)
{
string cmd = "kill -9 " + pid.ToString();
ProcessShell.Run(cmd, 1000);
}
