/* only the "noinplace_buffers" thread buffers need to be this large,
* this can be optimized. other buffers are fine with
* ChanCount::max (natural_input_streams (), natural_output_streams())
+ * and route.cc's max (configured_in, configured_out)
+ *
+ * no-inplace copies "thru" outputs (to emulate in-place) for
+ * all outputs (to prevent overwrite) into a temporary space
+ * which also holds input buffers (in case the plugin does process
+ * in-place and overwrites those).
+ *
+ * this buffers need to be at least as
+ * natural_input_streams () + possible outputs.
+ *
+ * sidechain inputs add a constraint on the input:
+ * configured input + sidechain (=_configured_internal)
*/
- _required_buffers = natural_input_streams () + natural_output_streams() * get_count();
+ _required_buffers =ChanCount::max (_configured_internal,
+ natural_input_streams () + ChanCount::max (_configured_out, natural_output_streams () * get_count ()));
if (old_in != in || old_out != out || old_internal != _configured_internal
|| (old_match.method != _match.method && (old_match.method == Split || _match.method == Split))