ardour/ardour
ardour/ardour
13
1
Fork 0
Code Pull Requests Releases Activity

Engine: debug-print alignment

Browse Source
This commit is contained in:
Robin Gareus 2020-01-20 06:24:41 +01:00
parent 72e385af46
commit df8c0d949e
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 21 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
libs/ardour/audioengine.cc
View File

@ -424,6 +424,27 @@ AudioEngine::process_callback (pframes_t nframes)
const double engine_speed = tmm.pre_process_transport_masters (nframes, sample_time_at_cycle_start());
Port::set_speed_ratio (engine_speed);
DEBUG_TRACE (DEBUG::Slave, string_compose ("transport master (current=%1) gives speed %2 (ports using %3)\n", tmm.current() ? tmm.current()->name() : string("[]"), engine_speed, Port::speed_ratio()));
#if 0 // USE FOR DEBUG ONLY
/* use with Dummy backend, engine pulse and
* scripts/_find_nonzero_sample.lua
* to correlate with recorded region alignment.
*/
static bool was_rolling = false;
bool is_rolling = _session->transport_rolling();
if (!was_rolling && is_rolling) {
samplepos_t stacs = sample_time_at_cycle_start ();
samplecnt_t sr = sample_rate ();
samplepos_t tp = _session->transport_sample ();
/* Note: this does not take Port latency into account:
* - always add 12 samples (Port::_resampler_quality)
* - ExistingMaterial: subtract playback latency from engine-pulse
* We assume the player listens and plays along. Recorded region is moved
* back by playback_latency
*/
printf (" ******** Starting play at %ld, next pulse: %ld\n", stacs, ((sr - (stacs % sr)) %sr) + tp);
}
was_rolling = is_rolling;
#endif
}
/* tell all relevant objects that we're starting a new cycle */