private void attachBufferToSource(int sourceId, AudioBuffer buffer) {
        al.alSourcei(sourceId, AL_BUFFER, buffer.getId());
    }
Unqueues processed buffers from a streaming source and refills/requeues them.
Updates the stream's internal count of processed bytes.

@param sourceId The OpenAL source ID.
@param stream   The AudioStream.
@param looping  Whether the stream should loop internally.
@return True if at least one buffer was successfully refilled and requeued.
jme3-core/src/main/java/com/jme3/audio/openal/ALAudioRenderer.java