CODEWITHSUNDEEP
c#.netdocker
newby567
newby567

Reputation: 53

.net exe in Dockercontainer

I tried to port a .net console application to a docker container. The application tries to call ffmpeg.exe, I get an error? Is it possible that I can't run an exe in this container?

static void encoder(string inputFile, string outputFolder, string outputFileName)
{
    if (!Directory.Exists(outputFolder))
    {
        Directory.CreateDirectory(outputFolder);
    }

    var GetDirectory = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);

    // Part 1: use ProcessStartInfo class.
    ProcessStartInfo startInfo = new ProcessStartInfo();
    startInfo.CreateNoWindow = false;
    startInfo.UseShellExecute = false;
    startInfo.RedirectStandardInput = true;
    startInfo.FileName = GetDirectory + @"/ffmpeg.exe";
    startInfo.WindowStyle = ProcessWindowStyle.Hidden;

    // Part 2: set arguments.
    startInfo.Arguments = "-i " + inputFile + " -q:a 8 -filter:a loudnorm " + outputFolder + outputFileName;

    // Part 3: start with the info we specified.
    // ... Call WaitForExit.
    using (Process exeProcess = Process.Start(startInfo))
    {
        exeProcess.StandardInput.WriteLine("y");
        exeProcess.WaitForExit();
    }

}

Error

OPUS-Encoder System.ComponentModel.Win32Exception (8): An error occurred trying to start process '/App/ffmpeg.exe' with working directory '/App'. Exec format error
   at System.Diagnostics.Process.ForkAndExecProcess(ProcessStartInfo startInfo, String resolvedFilename, String[] argv, String[] envp, String cwd, Boolean setCredentials, UInt32 userId, UInt32 groupId, UInt32[] groups, Int32& stdinFd, Int32& stdoutFd, Int32& stderrFd, Boolean usesTerminal, Boolean throwOnNoExec)
   at System.Diagnostics.Process.StartCore(ProcessStartInfo startInfo)
   at System.Diagnostics.Process.Start()
   at System.Diagnostics.Process.Start(ProcessStartInfo startInfo)
   at Program.<<Main>$>g__encoder|0_0(String inputFile, String outputFolder, String outputFileName) in /App/Program.cs:line 77
   at Program.<Main>$(String[] args) in /App/Program.cs:line 34

thx

Upvotes: 4

Views: 321

Answers (1)

Kliment Nechaev
Kliment Nechaev

Reputation: 551

Looks like your docker container running Linux, but executable is Windows PE.

If your container is running Linux you need Linux binary not Windows ".exe". You can get one here

API for call will be same.

If you want to support Linux and Windows you will need to change path parameter according to current OS. Here is the question about how to do it on runtime.

Upvotes: 2

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