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• FFmpeg send multiple inputs through a stream

  18 janvier 2023, par Stiven Diplet

  I have the following code that passes data to the ffmpeg process through a thread.

  


  public void VideoToImages3()
{
    var inputFile = @"C:\testvideo.avi";
    var outputFile = @"C:\outputFile.mp4";

    var process = new Process
    {
        StartInfo = new ProcessStartInfo
        {
            RedirectStandardInput = true,
            UseShellExecute = false,
            CreateNoWindow = true,
            Arguments = $"-y -i - {outputFile}",
            FileName = _ffmpeg
        },
        EnableRaisingEvents = true
    };

    process.Start();

    //Write input data to input stream
    var inputTask = Task.Run(() =>
    {
        using (var input = new FileStream(inputFile, FileMode.Open))
        {
            input.CopyTo(process.StandardInput.BaseStream);
        }
    });

    Task.WaitAll(inputTask);

    process.WaitForExit();
}


  


  In this case, I only upload 1 file through the stream (-i -). What if I need to stream multiple input files (-i - -i -). For example, when adding an Audio File to a Video File ?

  


  "ffmpeg -y -i {audioFilePath} -i {videoFilePath} {outputFilePath}"


  


  How to transfer files via StandardInput if 2 input arguments are specified ???

  


  I can't find a solution

  


• Failed to load required native libraries exception in an Outlook plugin / add-in

  30 mai 2023, par El_T

  We have an Outlook add-in which is failing to run 3rd party media player controls on a WinForm :

  


  "Could not load file or assembly" or "Failed to load required native libraries"

  


  We tried posting out on the Github repos :

  


  https://github.com/SuRGeoNix/Flyleaf/issues/308

  


  https://code.videolan.org/videolan/LibVLCSharp/-/issues/611#note_386617

  


  We also tried copying dll's etc. It seems to be with the actual loading process or permissions in some way.

  


  The media players are not running.

  


• How can I stream images from a remote server to a mobile app in real-time ? [closed]

  1er mars 2024, par Tharunkumar Ampolu

  I have a setup where I connect to a remote server via SSH to retrieve images captured by a robot. Currently, I am using scp to transfer these images to my local system, where I then use FFmpeg to convert them into a video for storage.

  


  However, I would like to explore the possibility of converting these images into a video on-the-fly as they are added to the remote server folder, with the goal of streaming this video feed to a mobile app.

  


  My requirements are as follows :

  


  The image stream needs to be transmitted to the mobile app in real-time.
I would prefer to avoid storing the images locally and instead stream them directly from the remote server to the mobile app.
The streaming solution should be scalable and support a high frame rate (30fps).
Could anyone suggest an approach or provide guidance on how to achieve this ? Specifically, I'm interested in methods for continuously converting images into a video stream on the remote server and then streaming this video feed to a mobile app in real-time.

  


  Any insights, code examples, or recommendations for tools and libraries that could help accomplish this task would be greatly appreciated.