FFmpeg.Autogen Error when i run on ubuntu

[arunkmarhudrom]

I am trying to get frame from rtsp using FFmpeg.Autogen using " https://github.com/Ruslan-B/FFmpeg.AutoGen/tree/master/FFmpeg.AutoGen.Example " it works perfectly on window i want to run on linux

i got error when i run on linux " ffpath: /usr/lib/x86_64-linux-gnu
failed to load ffmpeg libs : System.NotSupportedException: Specified method is not supported.
at FFmpeg.AutoGen.DynamicallyLoadedBindings.<>c.b__2_1226()
at FFmpeg.AutoGen.DynamicallyLoadedBindings.<>c.b__2_516()
at FFmpeg.AutoGen.ffmpeg.avdevice_register_all()
at RTSP.PLAYER.ViewModels.MainWindowViewModel.Mfgfgain(String ffpath) in E:\Lane Working Project\RTSP.PLAYER\ViewModels\MainWindowViewModel.cs:line 73 "

ffmpeg version 4.2.9 Copyright (c) 2000-2023 the FFmpeg developers

FFmpeg.Autogen Version 6.0.0.2

Please help me anybody

namespace FFmpeg.AutoGen.Example
{
public class FFmpegBinariesHelper
{
internal static void RegisterFFmpegBinaries()
{
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
var current = Environment.CurrentDirectory;
var probe = Path.Combine("FFmpeg", "bin", Environment.Is64BitProcess ? "x64" : "x86");

            while (current != null)
            {
                var ffmpegBinaryPath = Path.Combine(current, probe);

                if (Directory.Exists(ffmpegBinaryPath))
                {
                    Console.WriteLine($"FFmpeg binaries found in: {ffmpegBinaryPath}");
                    ffmpeg.RootPath = ffmpegBinaryPath;
                 
                  //  ffmpeg.RootPath = ffmpegBinaryPath;
                    return;
                }

                current = Directory.GetParent(current)?.FullName;
            }
        }
        else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
            ffmpeg.RootPath = "/usr/lib/x86_64-linux-gnu/";
        else
            throw new NotSupportedException(); // fell free add support for platform of your choose
    }
}

}

[Ruslan-B]

I guess could close this, obviously path is wrong given proper version binaries is installed. Binaries are not a part of distributions they needed for generation and debugging interop issues. Besides they GPL.

[arunkmarhudrom]

I guess could close this, obviously path is wrong given proper version binaries is installed. Binaries are not a part of distributions they needed for generation and debugging interop issues. Besides they GPL.

I got Black and white image on ubuntu what should be the correct Pixel format

          var destinationPixelFormat = AVPixelFormat.AV_PIX_FMT_BGR24;
        using var vfc = new VideoFrameConverter(sourceSize, sourcePixelFormat, destinationSize, destinationPixelFormat);

        var frameNumber = 0;
     
        try
        {

            var current = Environment.CurrentDirectory;

            var ffmpegBinaryPath = Path.Combine(current, "Frame");
            if (!File.Exists(ffmpegBinaryPath))
            {
                Directory.CreateDirectory(ffmpegBinaryPath);
            }
            while (vsd.TryDecodeNextFrame(out var frame))
            {

                var convertedFrame = vfc.Convert(frame);
                var bitmap = new Bitmap(convertedFrame.width, convertedFrame.height,
                           convertedFrame.linesize[0], PixelFormat.Format24bppRgb, (IntPtr)convertedFrame.data[0]);


                using (var memoryStream = new MemoryStream())
                {
                    bitmap.Save(memoryStream, System.Drawing.Imaging.ImageFormat.Jpeg);
                    memoryStream.Position = 0;

                    CameraImageView = new Bitmaps(memoryStream);

                    // Use the Avalonia bitmap as needed
                }

}}

[nidbCN]

I guess could close this, obviously path is wrong given proper version binaries is installed. Binaries are not a part of distributions they needed for generation and debugging interop issues. Besides they GPL.

I got Black and white image on ubuntu what should be the correct Pixel format

          var destinationPixelFormat = AVPixelFormat.AV_PIX_FMT_BGR24;
        using var vfc = new VideoFrameConverter(sourceSize, sourcePixelFormat, destinationSize, destinationPixelFormat);

        var frameNumber = 0;
     
        try
        {

            var current = Environment.CurrentDirectory;

            var ffmpegBinaryPath = Path.Combine(current, "Frame");
            if (!File.Exists(ffmpegBinaryPath))
            {
                Directory.CreateDirectory(ffmpegBinaryPath);
            }
            while (vsd.TryDecodeNextFrame(out var frame))
            {

                var convertedFrame = vfc.Convert(frame);
                var bitmap = new Bitmap(convertedFrame.width, convertedFrame.height,
                           convertedFrame.linesize[0], PixelFormat.Format24bppRgb, (IntPtr)convertedFrame.data[0]);


                using (var memoryStream = new MemoryStream())
                {
                    bitmap.Save(memoryStream, System.Drawing.Imaging.ImageFormat.Jpeg);
                    memoryStream.Position = 0;

                    CameraImageView = new Bitmaps(memoryStream);

                    // Use the Avalonia bitmap as needed
                }

}}

You write it in bitmap use (IntPtr)convertedFrame.data[0], the index 0 of data only contains one channel.