var jpgEncoder:JPGEncoder = new JPGEncoder(85);
var jpgStream:ByteArray = jpgEncoder.encode(bmpData);
The above is reporting error:
Type was not found or was not a compile-time constant: JPGEncoder.
Call to a possibly undefined method JPGEncoder.
Are you talking about
If so,This is from the core classes in ActionScript 3 Core Library.
Edit : The only other I know of that may come prepackaged is
Not sure how it matches up to the as3core library