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For example :
Im using InnoSetup and i installed my application to C:Test
In the directory Test i have now two files : ffmpeg.exe and myapp.exe
I can run myapp.exe but myapp.exe also need ffmpeg.exe to work .
So what i need is to get the path/directory of from where i run my application .
This is my code in my class i did :class Ffmpeg
{
NamedPipeServerStream p;
String pipename = "mytestpipe";
byte[] b;
System.Diagnostics.Process process;
string ffmpegFileName = "ffmpeg.exe";
string workingDirectory;
public Ffmpeg()
{
workingDirectory = Application.StartupPath; //Path.GetDirectoryName(Application.ExecutablePath);// +@"workingDirectory";
Logger.Write("workingDirectory: " + workingDirectory);
if (!Directory.Exists(workingDirectory))
{
Directory.CreateDirectory(workingDirectory);
}
ffmpegFileName = Path.Combine(workingDirectory, ffmpegFileName);//@"ffmpeg.exe";
Logger.Write("FfmpegFilename: " + ffmpegFileName);
}
public void Start(string pathFileName, int BitmapRate)
{
try
{
string outPath = pathFileName;
Logger.Write("Output Video File Directory: " + outPath);
Logger.Write("Frame Rate: " + BitmapRate.ToString());
p = new NamedPipeServerStream(pipename, PipeDirection.Out, 1, PipeTransmissionMode.Byte);
b = new byte[1920 * 1080 * 3]; // some buffer for the r g and b of pixels of an image of size 720p
ProcessStartInfo psi = new ProcessStartInfo();
psi.WindowStyle = ProcessWindowStyle.Hidden;
psi.UseShellExecute = false;
psi.CreateNoWindow = true;
psi.FileName = ffmpegFileName;
psi.WorkingDirectory = workingDirectory;
psi.Arguments = @"-f rawvideo -pix_fmt bgr0 -video_size 1920x1080 -i \.pipemytestpipe -map 0 -c:v libx264 -r " + BitmapRate + " " + outPath;
Logger.Write("ProcessStartInfo Arguments" + @"-f rawvideo -pix_fmt bgr0 -video_size 1920x1080 -i \.pipemytestpipe -map 0 -c:v libx264 -r " + BitmapRate + " " + outPath);
//psi.RedirectStandardOutput = true;
process = Process.Start(psi);
process.EnableRaisingEvents = false;
p.WaitForConnection();
}
catch (Exception err)
{
Logger.Write("Exception Error: " + err.ToString());
}
}
workingDirectory should contain the directory of the exe file of my application after installation .
But all the time i tried many ways im getting an exception say file not found the ffmpeg.exe
Here is my log file content :
6/9/2013--10:05 PM ==> workingDirectory: D:C-SharpScreenVideoRecorderScreenVideoRecorderWorkingVersionbinDebug
6/9/2013--10:05 PM ==> FfmpegFilename: D:C-SharpScreenVideoRecorderScreenVideoRecorderWorkingVersionbinDebugffmpeg.exe
6/9/2013--10:05 PM ==> Output Video File Directory: C:Usersbout0_000AppDataLocalScreenVideoRecorderScreenVideoRecorderDefaultDirectory
6/9/2013--10:05 PM ==> Frame Rate: 25
6/9/2013--10:05 PM ==> ProcessStartInfo Arguments-f rawvideo -pix_fmt bgr0 -video_size 1920x1080 -i \.pipemytestpipe -map 0 -c:v libx264 -r 25 C:Usersbout0_000AppDataLocalScreenVideoRecorderScreenVideoRecorderDefaultDirectory
6/9/2013--10:06 PM ==> Exception Error: System.ComponentModel.Win32Exception (0x80004005): The system cannot find the file specified
at System.Diagnostics.Process.StartWithCreateProcess(ProcessStartInfo startInfo)
at System.Diagnostics.Process.Start()
at System.Diagnostics.Process.Start(ProcessStartInfo startInfo)
at ScreenVideoRecorder.Ffmpeg.Start(String pathFileName, Int32 BitmapRate) in d:C-SharpScreenVideoRecorderScreenVideoRecorderWorkingVersionFfmpeg.cs:line 56
line 56 is
rocess = Process.Start(psi);
I cant find out why im getting the exception .
Now when im running the application from the visual studio then its looking for the ffmpeg.exe in the Debug directory so i copied now the ffmpeg.exe to the Debug and its working now good.
But after installation if the application exe file and the ffmpeg.exe file are both in some directory like c: program filestest
Then im getting the exception it cant find the file.
The log file show the missing file exception then i copied ffmpeg.exe to the debug and its ok.
But if its not debug if i run my application from crogram filestest
Then im getting the exception even if the ffmpeg.exe is there.
Now when im running the program from another directory not from the visual studio im getting exception :6/9/2013--10:15 PM ==> Error: System.IO.IOException: Pipe is broken.
at System.IO.Pipes.PipeStream.CheckWriteOperations()
at System.IO.Pipes.PipeStream.Write(Byte[] buffer, Int32 offset, Int32 count)
at ScreenVideoRecorder.Ffmpeg.PushFrame(Bitmap bmp)
class Ffmpeg
{
NamedPipeServerStream p;
String pipename = "mytestpipe";
byte[] b;
System.Diagnostics.Process process;
string ffmpegFileName = "ffmpeg.exe";
string workingDirectory;
public Ffmpeg()
{
workingDirectory = Application.StartupPath; //Path.GetDirectoryName(Application.ExecutablePath);// +@"workingDirectory";
Logger.Write("workingDirectory: " + workingDirectory);
if (!Directory.Exists(workingDirectory))
{
Directory.CreateDirectory(workingDirectory);
}
ffmpegFileName = Path.Combine(workingDirectory, ffmpegFileName);//@"ffmpeg.exe";
Logger.Write("FfmpegFilename: " + ffmpegFileName);
}
public void Start(string pathFileName, int BitmapRate)
{
try
{
string outPath = pathFileName;
Logger.Write("Output Video File Directory: " + outPath);
Logger.Write("Frame Rate: " + BitmapRate.ToString());
p = new NamedPipeServerStream(pipename, PipeDirection.Out, 1, PipeTransmissionMode.Byte);
b = new byte[1920 * 1080 * 3]; // some buffer for the r g and b of pixels of an image of size 720p
ProcessStartInfo psi = new ProcessStartInfo();
psi.WindowStyle = ProcessWindowStyle.Hidden;
psi.UseShellExecute = false;
psi.CreateNoWindow = true;
psi.FileName = ffmpegFileName;
psi.WorkingDirectory = workingDirectory;
psi.Arguments = @"-f rawvideo -pix_fmt bgr0 -video_size 1920x1080 -i \.pipemytestpipe -map 0 -c:v libx264 -r " + BitmapRate + " " + outPath;
Logger.Write("ProcessStartInfo Arguments" + @"-f rawvideo -pix_fmt bgr0 -video_size 1920x1080 -i \.pipemytestpipe -map 0 -c:v libx264 -r " + BitmapRate + " " + outPath);
//psi.RedirectStandardOutput = true;
process = Process.Start(psi);
process.EnableRaisingEvents = false;
p.WaitForConnection();
}
catch (Exception err)
{
Logger.Write("Exception Error: " + err.ToString());
}
}
public void PushFrame(Bitmap bmp)
{
try
{
int length;
// Lock the bitmaps bits.
//bmp = new Bitmap(1920, 1080);
Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);
//Rectangle rect = new Rectangle(0, 0, 1280, 720);
System.Drawing.Imaging.BitmapData bmpData =
bmp.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadOnly,
bmp.PixelFormat);
int absStride = Math.Abs(bmpData.Stride);
// Get the address of the first line.
IntPtr ptr = bmpData.Scan0;
// Declare an array to hold the bytes of the bitmap.
//length = 3 * bmp.Width * bmp.Height;
length = absStride * bmpData.Height;
byte[] rgbValues = new byte[length];
//Marshal.Copy(ptr, rgbValues, 0, length);
int j = bmp.Height - 1;
for (int i = 0; i < bmp.Height; i++)
{
IntPtr pointer = new IntPtr(bmpData.Scan0.ToInt32() + (bmpData.Stride * j));
System.Runtime.InteropServices.Marshal.Copy(pointer, rgbValues, absStride * (bmp.Height - i - 1), absStride);
j--;
}
p.Write(rgbValues, 0, length);
bmp.UnlockBits(bmpData);
}
catch(Exception err)
{
Logger.Write("Error: " + err.ToString());
}
On the line p.Write(rgbValues, 0, length);
But thats since for some reason it didnt catch the exception in process that the file is not found.
-----------------------------------------------------------------------------------------------------------
1. I need to get the directory of the ffmpeg.exe from where the program is installed not the Debug !
2. If i run it from visual studio its working if the ffmpeg.exe is in the Debug directory.
3. If i run the program from another directory not from the visual studio just run the exe its not finiding the ffmpeg.exe for some reason.
How can i fix it ?
View the full article
Im using InnoSetup and i installed my application to C:Test
In the directory Test i have now two files : ffmpeg.exe and myapp.exe
I can run myapp.exe but myapp.exe also need ffmpeg.exe to work .
So what i need is to get the path/directory of from where i run my application .
This is my code in my class i did :class Ffmpeg
{
NamedPipeServerStream p;
String pipename = "mytestpipe";
byte[] b;
System.Diagnostics.Process process;
string ffmpegFileName = "ffmpeg.exe";
string workingDirectory;
public Ffmpeg()
{
workingDirectory = Application.StartupPath; //Path.GetDirectoryName(Application.ExecutablePath);// +@"workingDirectory";
Logger.Write("workingDirectory: " + workingDirectory);
if (!Directory.Exists(workingDirectory))
{
Directory.CreateDirectory(workingDirectory);
}
ffmpegFileName = Path.Combine(workingDirectory, ffmpegFileName);//@"ffmpeg.exe";
Logger.Write("FfmpegFilename: " + ffmpegFileName);
}
public void Start(string pathFileName, int BitmapRate)
{
try
{
string outPath = pathFileName;
Logger.Write("Output Video File Directory: " + outPath);
Logger.Write("Frame Rate: " + BitmapRate.ToString());
p = new NamedPipeServerStream(pipename, PipeDirection.Out, 1, PipeTransmissionMode.Byte);
b = new byte[1920 * 1080 * 3]; // some buffer for the r g and b of pixels of an image of size 720p
ProcessStartInfo psi = new ProcessStartInfo();
psi.WindowStyle = ProcessWindowStyle.Hidden;
psi.UseShellExecute = false;
psi.CreateNoWindow = true;
psi.FileName = ffmpegFileName;
psi.WorkingDirectory = workingDirectory;
psi.Arguments = @"-f rawvideo -pix_fmt bgr0 -video_size 1920x1080 -i \.pipemytestpipe -map 0 -c:v libx264 -r " + BitmapRate + " " + outPath;
Logger.Write("ProcessStartInfo Arguments" + @"-f rawvideo -pix_fmt bgr0 -video_size 1920x1080 -i \.pipemytestpipe -map 0 -c:v libx264 -r " + BitmapRate + " " + outPath);
//psi.RedirectStandardOutput = true;
process = Process.Start(psi);
process.EnableRaisingEvents = false;
p.WaitForConnection();
}
catch (Exception err)
{
Logger.Write("Exception Error: " + err.ToString());
}
}
workingDirectory should contain the directory of the exe file of my application after installation .
But all the time i tried many ways im getting an exception say file not found the ffmpeg.exe
Here is my log file content :
6/9/2013--10:05 PM ==> workingDirectory: D:C-SharpScreenVideoRecorderScreenVideoRecorderWorkingVersionbinDebug
6/9/2013--10:05 PM ==> FfmpegFilename: D:C-SharpScreenVideoRecorderScreenVideoRecorderWorkingVersionbinDebugffmpeg.exe
6/9/2013--10:05 PM ==> Output Video File Directory: C:Usersbout0_000AppDataLocalScreenVideoRecorderScreenVideoRecorderDefaultDirectory
6/9/2013--10:05 PM ==> Frame Rate: 25
6/9/2013--10:05 PM ==> ProcessStartInfo Arguments-f rawvideo -pix_fmt bgr0 -video_size 1920x1080 -i \.pipemytestpipe -map 0 -c:v libx264 -r 25 C:Usersbout0_000AppDataLocalScreenVideoRecorderScreenVideoRecorderDefaultDirectory
6/9/2013--10:06 PM ==> Exception Error: System.ComponentModel.Win32Exception (0x80004005): The system cannot find the file specified
at System.Diagnostics.Process.StartWithCreateProcess(ProcessStartInfo startInfo)
at System.Diagnostics.Process.Start()
at System.Diagnostics.Process.Start(ProcessStartInfo startInfo)
at ScreenVideoRecorder.Ffmpeg.Start(String pathFileName, Int32 BitmapRate) in d:C-SharpScreenVideoRecorderScreenVideoRecorderWorkingVersionFfmpeg.cs:line 56
line 56 is
rocess = Process.Start(psi);I cant find out why im getting the exception .
Now when im running the application from the visual studio then its looking for the ffmpeg.exe in the Debug directory so i copied now the ffmpeg.exe to the Debug and its working now good.
But after installation if the application exe file and the ffmpeg.exe file are both in some directory like c: program filestest
Then im getting the exception it cant find the file.
The log file show the missing file exception then i copied ffmpeg.exe to the debug and its ok.
But if its not debug if i run my application from c
rogram filestest Then im getting the exception even if the ffmpeg.exe is there.
Now when im running the program from another directory not from the visual studio im getting exception :6/9/2013--10:15 PM ==> Error: System.IO.IOException: Pipe is broken.
at System.IO.Pipes.PipeStream.CheckWriteOperations()
at System.IO.Pipes.PipeStream.Write(Byte[] buffer, Int32 offset, Int32 count)
at ScreenVideoRecorder.Ffmpeg.PushFrame(Bitmap bmp)
class Ffmpeg
{
NamedPipeServerStream p;
String pipename = "mytestpipe";
byte[] b;
System.Diagnostics.Process process;
string ffmpegFileName = "ffmpeg.exe";
string workingDirectory;
public Ffmpeg()
{
workingDirectory = Application.StartupPath; //Path.GetDirectoryName(Application.ExecutablePath);// +@"workingDirectory";
Logger.Write("workingDirectory: " + workingDirectory);
if (!Directory.Exists(workingDirectory))
{
Directory.CreateDirectory(workingDirectory);
}
ffmpegFileName = Path.Combine(workingDirectory, ffmpegFileName);//@"ffmpeg.exe";
Logger.Write("FfmpegFilename: " + ffmpegFileName);
}
public void Start(string pathFileName, int BitmapRate)
{
try
{
string outPath = pathFileName;
Logger.Write("Output Video File Directory: " + outPath);
Logger.Write("Frame Rate: " + BitmapRate.ToString());
p = new NamedPipeServerStream(pipename, PipeDirection.Out, 1, PipeTransmissionMode.Byte);
b = new byte[1920 * 1080 * 3]; // some buffer for the r g and b of pixels of an image of size 720p
ProcessStartInfo psi = new ProcessStartInfo();
psi.WindowStyle = ProcessWindowStyle.Hidden;
psi.UseShellExecute = false;
psi.CreateNoWindow = true;
psi.FileName = ffmpegFileName;
psi.WorkingDirectory = workingDirectory;
psi.Arguments = @"-f rawvideo -pix_fmt bgr0 -video_size 1920x1080 -i \.pipemytestpipe -map 0 -c:v libx264 -r " + BitmapRate + " " + outPath;
Logger.Write("ProcessStartInfo Arguments" + @"-f rawvideo -pix_fmt bgr0 -video_size 1920x1080 -i \.pipemytestpipe -map 0 -c:v libx264 -r " + BitmapRate + " " + outPath);
//psi.RedirectStandardOutput = true;
process = Process.Start(psi);
process.EnableRaisingEvents = false;
p.WaitForConnection();
}
catch (Exception err)
{
Logger.Write("Exception Error: " + err.ToString());
}
}
public void PushFrame(Bitmap bmp)
{
try
{
int length;
// Lock the bitmaps bits.
//bmp = new Bitmap(1920, 1080);
Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);
//Rectangle rect = new Rectangle(0, 0, 1280, 720);
System.Drawing.Imaging.BitmapData bmpData =
bmp.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadOnly,
bmp.PixelFormat);
int absStride = Math.Abs(bmpData.Stride);
// Get the address of the first line.
IntPtr ptr = bmpData.Scan0;
// Declare an array to hold the bytes of the bitmap.
//length = 3 * bmp.Width * bmp.Height;
length = absStride * bmpData.Height;
byte[] rgbValues = new byte[length];
//Marshal.Copy(ptr, rgbValues, 0, length);
int j = bmp.Height - 1;
for (int i = 0; i < bmp.Height; i++)
{
IntPtr pointer = new IntPtr(bmpData.Scan0.ToInt32() + (bmpData.Stride * j));
System.Runtime.InteropServices.Marshal.Copy(pointer, rgbValues, absStride * (bmp.Height - i - 1), absStride);
j--;
}
p.Write(rgbValues, 0, length);
bmp.UnlockBits(bmpData);
}
catch(Exception err)
{
Logger.Write("Error: " + err.ToString());
}
On the line p.Write(rgbValues, 0, length);
But thats since for some reason it didnt catch the exception in process that the file is not found.
-----------------------------------------------------------------------------------------------------------
1. I need to get the directory of the ffmpeg.exe from where the program is installed not the Debug !
2. If i run it from visual studio its working if the ffmpeg.exe is in the Debug directory.
3. If i run the program from another directory not from the visual studio just run the exe its not finiding the ffmpeg.exe for some reason.
How can i fix it ?
View the full article
