I did a `npm install fluent-ffmpeg` on Ubuntu 10.10, and this version throws the following error when I tried a simple mp3 to ogg conversion.
```
Error: Source is not a ReadableStream
at new Ffmp…
The error message I get is:
```
child_process.js:413
throw new Error('customFds not yet supported');
^
Error: customFds not yet supported
at setStreamOption (child_process.js:41…