/* filter to get final output */
for (i = 0; i < (s->sample_blocks / 8); i++) {
dca_filter_channels(s, i);
+
+ /* If this was marked as a DTS-ES stream we need to subtract back- */
+ /* channel from SL & SR to remove matrixed back-channel signal */
+ if((s->source_pcm_res & 1) && s->xch_present) {
+ float* back_chan = s->samples + s->channel_order_tab[s->xch_base_channel] * 256;
+ float* lt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 2] * 256;
+ float* rt_chan = s->samples + s->channel_order_tab[s->xch_base_channel - 1] * 256;
+ int j;
+ for(j = 0; j < 256; ++j) {
+ lt_chan[j] -= (back_chan[j] - s->add_bias) * 0.707107f;
+ rt_chan[j] -= (back_chan[j] - s->add_bias) * 0.707107f;
+ }
+ }
+
s->dsp.float_to_int16_interleave(samples, s->samples_chanptr, 256, channels);
samples += 256 * channels;
}