+static void scale_coefficients(AC3EncodeContext *s)
+{
+ int chan_size = AC3_MAX_COEFS * s->num_blocks;
+ int cpl = s->cpl_on;
+ s->ac3dsp.float_to_fixed24(s->fixed_coef_buffer + (chan_size * !cpl),
+ s->mdct_coef_buffer + (chan_size * !cpl),
+ chan_size * (s->channels + cpl));
+}
+
+
+/*
+ * Clip MDCT coefficients to allowable range.
+ */
+static void clip_coefficients(DSPContext *dsp, float *coef, unsigned int len)
+{
+ dsp->vector_clipf(coef, coef, COEF_MIN, COEF_MAX, len);
+}
+
+
+/*
+ * Calculate a single coupling coordinate.
+ */
+static CoefType calc_cpl_coord(CoefSumType energy_ch, CoefSumType energy_cpl)