ardour/livetrax
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more midi latency detection debugging

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This commit is contained in:
Robin Gareus 2014-06-16 20:22:31 +02:00
parent fbe359e8c7
commit 43db6fd97e
1 changed files with 6 additions and 2 deletions
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8
libs/ardour/mididm.cc
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@ -50,6 +50,9 @@ int MIDIDM::process (pframes_t nframes, PortEngine &pe, void *midi_in, void *mid
/* process incoming */
const pframes_t nevents = pe.get_midi_event_count (midi_in);
#if 1 //DEBUG
printf("MIDI SEND: @%8"PRId64", recv: %d \n", _monotonic_cnt, nevents);
#endif
for (pframes_t n = 0; n < nevents; ++n) {
pframes_t timestamp;
size_t size;
@ -64,10 +67,11 @@ int MIDIDM::process (pframes_t nframes, PortEngine &pe, void *midi_in, void *mid
#define MODX (16384) // 1<<(2*7)
#define MASK (0x3fff) // MODX - 1
const int64_t tc = (_monotonic_cnt + timestamp) & MASK;
const int64_t ti = (buf[2] << 7) | buf[1];
const int64_t ti = ((buf[2] & 0x7f) << 7) | (buf[1] & 0x7f);
const int64_t tdiff = (MODX + tc - ti) % MODX;
#if 1 //DEBUG
printf("MIDI DELAY: # %4"PRId64" %4"PRId64" [samples]\n", _cnt_total, tdiff);
printf("MIDI DELAY: # %5"PRId64" %5"PRId64" [samples] (%5"PRId64" - %8"PRId64") @(%5"PRId64" + %d)\n",
_cnt_total, tdiff, tc, ti, _monotonic_cnt, timestamp);
#endif
/* running variance */