rem: prefill_threshold_rep = ECA_ENGINE::prefill_threshold_constant / buffersize();
add: prefill_threshold_rep = ECA_ENGINE::prefill_threshold_constant / buffersize() / max_channels();
context: void ECA_ENGINE::init_prefill(void){  prefill_threshold_rep = 0;  if (csetup_repp->max_buffers() == true)     prefill_threshold_rep = ECA_ENGINE::prefill_threshold_constant / buffersize();  if (prefill_threshold_rep < ECA_ENGINE::prefill_blocks_constant)    prefill_threshold_rep = ECA_ENGINE::prefill_blocks_constant;    ecadebug->msg(ECA_DEBUG::system_objects,		"(eca-engine) Prefill loops: " +		kvu_numtostr(prefill_threshold_rep) +		" (blocksize " + 		kvu_numtostr(buffersize()) + ").");}