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• 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

• 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

• 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