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  • How can I fix 'Missing system type and architecture' error when downloading FFmpeg library in Maui.net ?

    2 juin 2023, par Alhusseen Alfalahy

    Missing system type and architecture when Xabe.FFmpeg.Downloader.FFmpegDownloader.GetLatestVersion in Maui.net

    


    I was trying to run the FFmpeg library download code and I always get this error

    


    Missing system type and architecture

    


    Steps to replicate the problem

    


    Create a new Maui project

    


    Install NuGet Xabe.FFmpeg.Downloader

    


    This is the homepage code

    


    namespace MauiApp1;

public partial class MainPage : ContentPage
{
    // A button to download FFmpeg
    private Button Button;

    public MainPage()
    {
        Button = new() { Text = "Download FFmpeg" };

        Button.Clicked += Button_Clicked;

        Content = new StackLayout()
        {
            Children =
            {
                Button
            }
        };
    }

    private async void Button_Clicked(object sender, EventArgs e)
    {
        try
        {
            var status = await Permissions.CheckStatusAsync();
            if (status != PermissionStatus.Granted)
            {
                status = await Permissions.RequestAsync();
            }

            status = await Permissions.CheckStatusAsync();
            if (status != PermissionStatus.Granted)
            {
                status = await Permissions.RequestAsync();
            }

            if (status == PermissionStatus.Granted)
            {

                await Xabe.FFmpeg.Downloader.FFmpegDownloader.GetLatestVersion(Xabe.FFmpeg.Downloader.FFmpegVersion.Official);
                //await Xabe.FFmpeg.Downloader.FFmpegDownloader.GetLatestVersion(Xabe.FFmpeg.Downloader.FFmpegVersion.Android);
                //await Xabe.FFmpeg.Downloader.FFmpegDownloader.GetLatestVersion(Xabe.FFmpeg.Downloader.FFmpegVersion.Official, Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "FFmpeg"));
                //await Xabe.FFmpeg.Downloader.FFmpegDownloader.GetLatestVersion(Xabe.FFmpeg.Downloader.FFmpegVersion.Android, Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "FFmpeg"));


                await DisplayAlert("Install", "Install completed successfully", "OK");
            }
        }
        catch (Exception ex)
        {
            // Show an alert message with exception message 
            await DisplayAlert("Install Failed", $"An error occurred: {ex.Message}", "OK");
        }
    }
}


    


    These are file access permissions on Android

    


    
    
    


    


  • vorbiscomment : Add DESCRIPTION to ff_vorbiscomment_metadata_conv

    18 juillet 2013, par James Almer
    vorbiscomment : Add DESCRIPTION to ff_vorbiscomment_metadata_conv

    It’s the official (or recommended) name for comment/description entries.
    
See https://www.xiph.org/vorbis/doc/v-comment.html
    

    Signed-off-by : James Almer <jamrial@gmail.com>
    
Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavformat/vorbiscomment.c

  • vc2enc : decrease default strictness level

    15 juin 2017, par Rostislav Pehlivanov
    vc2enc : decrease default strictness level

    Given how incredibly limited the official specifications are (limiting all use
    
to only the most common broadcasting formats), permit all supported inputs
    
by default. This makes the encoder more useful.
    • [DH] libavcodec/vc2enc.c

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