+ if (clip1.empty() && clip2.empty()) {
+ // No interesting data yet.
+ return;
+ }
+
+ steady_clock::time_point base;
+ if (!clip1.empty() && !clip2.empty()) {
+ base = max(clip1.get_first_sample(), clip2.get_first_sample());
+ } else if (!clip1.empty()) {
+ base = clip1.get_first_sample();
+ } else {
+ assert(!clip2.empty());
+ base = clip2.get_first_sample();
+ }
+ ui->peak_display_1->set_base(base);
+ ui->peak_display_2->set_base(base);
+
+ if (clip1.get_length_seconds_after_base(base) >= 1.0 &&
+ clip2.get_length_seconds_after_base(base) >= 1.0) {