Merge "Make loudness estimation rise-time instantenous" into gingerbread

            float signalPowerDb = logf(mPowerSquared / mNextUpdateInterval / float(int64_t(1) << 48) + 1e-10f) / logf(10.0f) * 10.0f;

            signalPowerDb += 96.0f - 6.0f;

            /* Limit automatic EQ to small adjustments to limit the noise

             * introduced by updates of EQ bands. Additionally, we bias

	     * the loudness estimate strongly towards the highest seen

	     * values, to avoid pumping artifacts. */

            if (mLoudness < signalPowerDb - 1.0f) {

                mLoudness += 1.0f;

            } else if (mLoudness > signalPowerDb - 0.1f) {

                mLoudness -= 0.1f;

	    /* Immediate rise-time, and linear 10 dB/s decay */

            if (mLoudness > signalPowerDb + 0.1) {

                mLoudness -= 0.1;

            } else {

                mLoudness = signalPowerDb;

	    }