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debug alsa midi latency measurement

This commit is contained in:
Robin Gareus 2014-06-16 19:44:23 +02:00
parent f383f2b856
commit fbe359e8c7
2 changed files with 9 additions and 0 deletions
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6
gtk2_ardour/engine_dialog.cc
View File

@ -1920,6 +1920,12 @@ EngineControl::check_midi_latency_measurement ()
end_latency_detection ();
lm_use_button.set_sensitive (true);
have_lm_results = true;
return false;
} else if (mididm->processed () > 400) {
have_lm_results = false;
end_latency_detection ();
lm_results.set_markup (string_compose (results_markup, _("Timeout - large MIDI jitter.")));
return false;
}
lm_results.set_markup (string_compose (results_markup, buf));

3
libs/ardour/mididm.cc
View File

@ -66,6 +66,9 @@ int MIDIDM::process (pframes_t nframes, PortEngine &pe, void *midi_in, void *mid
const int64_t tc = (_monotonic_cnt + timestamp) & MASK;
const int64_t ti = (buf[2] << 7) | buf[1];
const int64_t tdiff = (MODX + tc - ti) % MODX;
#if 1 //DEBUG
printf("MIDI DELAY: # %4"PRId64" %4"PRId64" [samples]\n", _cnt_total, tdiff);
#endif
/* running variance */
if (_cnt_total == 0) {