Changes

The callback receives a byte array and the number of samples contained in that array. The array consists of PCM float stereo samples at a frequency of 44000Hz(pretty high-quality audio!). We're working on adding support for re-encoding this byte stream (before or after manipulation) back into an OGG/Vorbis file. Check out http://hg.mozilla.org/labs/jetpack/file/tip/components/experimental/audio/AudioEncoder.cpp if you want to help!