Issue with duration for audio - ffprobe

[abutir]

when using ffprobe analyse in aws lambda it returns the object half with default values . even though the same code works perfectly locally . could be something to do with different enviroments.

i needed the duration out of the FFProbeAnalysis but it always comes out zero .

for anyone in the future here is a helper class to get the ffprobe analysis . please note that the values are not parsed . so you have to parse them to your liking ( you can find the parse class in the library )

`public class FFProbeHelper
{

public static async Task<FFProbeAnalysis> AnalyzeRawAsync(Stream memoryStream, string ffprobePath, string tmpFilePath = "")
{
    if (string.IsNullOrWhiteSpace(tmpFilePath))
        tmpFilePath = $"tmp/{Guid.NewGuid()}.mp3"; // the tmp file path should be passed in case of lambda functions with prefix /tmp/..

    await using (var fileStream = File.Create(tmpFilePath)) {
        memoryStream.Seek(0, SeekOrigin.Begin);
        await memoryStream.CopyToAsync(fileStream);
    }

    using var process = new Process();
    process.StartInfo = new ProcessStartInfo {
        FileName = ffprobePath,
        Arguments = $"-loglevel error -print_format json -show_format -sexagesimal -show_streams -show_chapters -i {tmpFilePath}",
        RedirectStandardOutput = true,
        RedirectStandardError = true,
        UseShellExecute = false,
        CreateNoWindow = true
    };

    try {
        process.Start();
        var output = await process.StandardOutput.ReadToEndAsync();
        await process.WaitForExitAsync();
        File.Delete(tmpFilePath);

        var analysis = JsonSerializer.Deserialize<FFProbeAnalysis>(string.Join(string.Empty, output), new JsonSerializerOptions() {PropertyNameCaseInsensitive = true});
        
        return analysis;
    }
    catch (Exception e) {
        Console.WriteLine("exception : " + e.Message);

        throw;
    }
}

}`