FIleStreamResult and Wavesurfer (ASP.NET)

[doctor30309]

I have an MVC Web App Controller that returns a FileStreamResult. The link I use in Wavesurfer is the path to the controller. The wave file plays fine. But every time I interact (like click to skip ahead), the wave file gets reloaded from the controller. The player starts over and plays from the beginning of song... Is this a bug? A bad design? Is there a different approach to making this work as I don't want to expose the actual location of the wave files to the end user?

I have pre-calculated peaks and duration.

[katspaugh]

Make sure your server sends the right content type for the audio.

[doctor30309]

I believe I am..

Here is the line of code that returns the stream..

string[] contentType = "wav:audio/wav".Split(":"); 
Stream inputFile = System.IO.File.OpenRead(link);
return new FileStreamResult(inputFile, new MediaTypeHeaderValue(contentType));

The song plays correctly. I am preloading with peaks and duration. This is a async call returning Task

Am I missing a property setting in Wavesurfer initialization?

[katspaugh]

If it plays fine but it's the seeking/scrubbing you have issues with, then it's probably Range headers that you're missing.
See https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Range
See https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Range

Alternatively, you can switch to Web Audio (backend: 'WebAudio in wavesurfer options). In that case the whole file will be downloaded and played from an in-memory buffer.

[doctor30309]

Thank you. I modified the code and it works...

EnableRangeProcessing was the key. Thank you for the direction!

Stream inputFile = System.IO.File.OpenRead(link);
FileStreamResult fsr = new FileStreamResult(inputFile, new MediaTypeHeaderValue(contentType));
fsr.EnableRangeProcessing = true;
return fsr;