[Bug]Sometimes the compressed video file would be corrupted.

[sbs-surendhar-kabilan]

We are using OtaliaStudios.TranscoderLib ITranscoderListener to compress the video in our application.

Current behavior:
Sometimes the compressed video file would be corrupted and getting exceptions in our application.

Expected behavior:
After compressing the video, the video should be playable and not corrupt.

In our application, please see the code snippet that we were used for compressing the video.

VideoTranscoder.TranscodeVideoAsync(inputPath, outputPath);

public static async Task TranscodeVideoAsync(string sourceVideoPath, string outputpath)
{

        string path = System.IO.Path.GetDirectoryName(outputpath);
        AVAssetExportSession export = new AVAssetExportSession(sourceVideoPath);
        string outputFilePath = Path.Combine(path, $"{DateTime.Now.ToString(DateString.strDMYHMS, AppState.CultureInfo)}.mp4");
        export.OutputPath = outputFilePath;

        await export.ExportTaskAsync();

        MemoryStream output = new MemoryStream();
        using (Stream source = File.OpenRead(outputFilePath))
            await source.CopyToAsync(output);

        output.Seek(0, SeekOrigin.Begin);
        return outputFilePath;

}

public async Task ExportTaskAsync()
{

             DefaultVideoStrategy videoStrategy = new DefaultVideoStrategy.Builder()
                .AddResizer(new ExactResizer(720, 1280))
                .BitRate(4096)
                .FrameRate(40)
                .KeyFrameInterval(3f)
                .Build();

            DefaultAudioStrategy audioStrategy = new DefaultAudioStrategy.Builder()
                   .SampleRate(DefaultAudioStrategy.SampleRateAsInput)
             .BitRate(DefaultAudioStrategy.BitrateUnknown).Build();

            await _semaphore.WaitAsync();
            Transcoder.Into(this.OutputPath)
                .AddDataSource(_assetPath)
                .SetVideoTrackStrategy(DefaultVideoStrategies.For720x1280())
                .SetAudioTrackStrategy(audioStrategy)
                .SetListener(this)
                .Transcode();
            await _semaphore.WaitAsync();

}