Disposing of streams

ServiceStack
1

I have two situations where we return data (for example to a client requesting a video) from a ServiceStack API.

For streaming a file:

var fs = new FileStream(video.FileSystemAddress, FileMode.Open, FileAccess.Read);
return new HttpResult(fs, video.MimeType);

For downloading a file:

 var fileStream = new FileStream(video.FileSystemAddress, FileMode.Open, FileAccess.Read);
 return new GetResourceResponse(fileStream, video.MimeType, video.FileName);

Are the file streams automatically disposed by the framework or is this something I need to do?

In the example about, GetResourceResponse implements IHasOptions, IStreamWriterAsync, IDisposable:

        public async Task WriteToAsync(Stream responseStream, CancellationToken token = new CancellationToken())
        {
            if (stream == null)
                return;

            await stream.CopyToAsync(responseStream, token);
        }
2

ServiceStack will dispose the Stream returned in HttpResult and will call Dispose() on a custom result.