Failed to open the media stream

[seminda]

I am using this package to create a thumbnail for video via the azure function. when the video uploads to the blob it triggers the function. I am getting below error

System.Exception HResult=0x80131500 Message=Failed to open the media stream Source=FFMediaToolkit StackTrace: at FFMediaToolkit.Decoding.MediaFile.Open(Stream stream, MediaOptions options) at FFMediaToolkit.Decoding.MediaFile.Open(Stream stream) at Flexiata.Fcrm.ThumbnailCreator.VideoThumbNailCreateWithDrawing.Run(Stream stream, String name) in E:\Flexiata Code\fcrm2023\src\Flexiata.Fcrm.ThumbnailCreator\VideoThumbNailCreateWithDrawing.cs:line 49 at Microsoft.Azure.Functions.Worker.Invocation.VoidMethodInvoker2.InvokeAsync(TReflected instance, Object[] arguments) at Microsoft.Azure.Functions.Worker.Invocation.DefaultFunctionInvoker2.InvokeAsync(Object instance, Object[] arguments) at Microsoft.Azure.Functions.Worker.Invocation.DefaultFunctionExecutor.d__4.MoveNext()

This exception was originally thrown at this call stack: [External Code]

Inner Exception 1: FFmpegException: An error occurred while opening the file Error code: -1 : Operation not permitted

Azure function v4

net7.0

Code: ` using FFMediaToolkit; using FFMediaToolkit.Decoding; using Microsoft.Azure.Functions.Worker; using Microsoft.Extensions.Logging;

namespace Flexiata.Fcrm.ThumbnailCreator { public class VideoThumbNailCreate { private readonly ILogger _logger;

    public VideoThumbNailCreate(ILogger<VideoThumbNailCreate> logger)
    {
        _logger = logger;
    }

    [Function(nameof(VideoThumbNailCreate))]
    public async Task Run([BlobTrigger("%InputVideoBlobContainer%", Connection = "AzureWebJobsStorage")] Stream stream, string name)
    {
        try
        {
            var azure_root = $"{Environment.GetEnvironmentVariable("HOME")}/site/wwwroot";
            FFmpegLoader.FFmpegPath = Path.Combine(azure_root, "ffmpeg", "x86_64");
            _logger.LogInformation("FFmpeg {0}", FFmpegLoader.FFmpegPath);
        }
        catch (Exception ex)
        {
            // Ignore exceptions while loading the assemblies.
            _logger.LogError(ex, "Error loading FFmpeg assemblies");
        }

        using var file = MediaFile.Open(stream);

    }

}

} `

The same code works with older .net versions. Any idea why this happens?

[seminda]

Not a issue