- int x = ch;
-
- predictor_init_state(s->predictor_k, s->predictor_state[ch], s->num_taps);
-
- intlist_read(&gb, s->coded_samples[ch], s->block_align, 1);
-
- for (i = 0; i < s->block_align; i++)
- {
- for (j = 0; j < s->downsampling - 1; j++)
- {
- s->int_samples[x] = predictor_calc_error(s->predictor_k, s->predictor_state[ch], s->num_taps, 0);
- x += s->channels;
- }
-
- s->int_samples[x] = predictor_calc_error(s->predictor_k, s->predictor_state[ch], s->num_taps, s->coded_samples[ch][i] * quant);
- x += s->channels;
- }
-
- for (i = 0; i < s->num_taps; i++)
- s->predictor_state[ch][i] = s->int_samples[s->frame_size - s->channels + ch - i*s->channels];
- }
-
- if (s->mid_side)
- for (i = 0; i < s->frame_size; i += s->channels)
- {
- s->int_samples[i+1] += shift(s->int_samples[i], 1);
- s->int_samples[i] -= s->int_samples[i+1];
- }
+ int x = ch;
+
+ predictor_init_state(s->predictor_k, s->predictor_state[ch], s->num_taps);
+
+ intlist_read(&gb, s->coded_samples[ch], s->block_align, 1);
+
+ for (i = 0; i < s->block_align; i++)
+ {
+ for (j = 0; j < s->downsampling - 1; j++)
+ {
+ s->int_samples[x] = predictor_calc_error(s->predictor_k, s->predictor_state[ch], s->num_taps, 0);
+ x += s->channels;
+ }
+
+ s->int_samples[x] = predictor_calc_error(s->predictor_k, s->predictor_state[ch], s->num_taps, s->coded_samples[ch][i] * quant);
+ x += s->channels;
+ }
+
+ for (i = 0; i < s->num_taps; i++)
+ s->predictor_state[ch][i] = s->int_samples[s->frame_size - s->channels + ch - i*s->channels];
+ }
+
+ switch(s->decorrelation)
+ {
+ case MID_SIDE:
+ for (i = 0; i < s->frame_size; i += s->channels)
+ {
+ s->int_samples[i+1] += shift(s->int_samples[i], 1);
+ s->int_samples[i] -= s->int_samples[i+1];
+ }
+ break;
+ case LEFT_SIDE:
+ for (i = 0; i < s->frame_size; i += s->channels)
+ s->int_samples[i+1] += s->int_samples[i];
+ break;
+ case RIGHT_SIDE:
+ for (i = 0; i < s->frame_size; i += s->channels)
+ s->int_samples[i] += s->int_samples[i+1];
+ break;
+ }