mirror of
https://github.com/Ardour/ardour.git
synced 2025-12-06 14:54:56 +01:00
015fc7b39f
- Split Configuration into RCConfiguration and SessionConfiguration; the first for options which are saved to .rc files and the second for options which are saved in a session file. - Move some options from the old `master' Configuration object into SessionConfiguration; this needs more refinement. - Reflect many RCConfiguration options in an expanded Edit->Preferences dialog; my intention is to remove the corresponding menu items eventually. git-svn-id: svn://localhost/ardour2/branches/3.0@5075 d708f5d6-7413-0410-9779-e7cbd77b26cf
966 lines
22 KiB
C++
966 lines
22 KiB
C++
/*
|
|
Copyright (C) 1999-2002 Paul Davis
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
*/
|
|
|
|
#include <cmath>
|
|
#include <cerrno>
|
|
#include <algorithm>
|
|
#include <unistd.h>
|
|
|
|
#include "pbd/error.h"
|
|
|
|
#include <glibmm/thread.h>
|
|
|
|
#include "ardour/ardour.h"
|
|
#include "ardour/session.h"
|
|
#include "ardour/timestamps.h"
|
|
#include "ardour/audio_diskstream.h"
|
|
#include "ardour/audioengine.h"
|
|
#include "ardour/slave.h"
|
|
#include "ardour/auditioner.h"
|
|
#include "ardour/cycles.h"
|
|
#include "ardour/cycle_timer.h"
|
|
|
|
#include "midi++/manager.h"
|
|
|
|
#include "i18n.h"
|
|
|
|
using namespace ARDOUR;
|
|
using namespace PBD;
|
|
using namespace std;
|
|
|
|
/** Called by the audio engine when there is work to be done with JACK.
|
|
* @param nframes Number of frames to process.
|
|
*/
|
|
void
|
|
Session::process (nframes_t nframes)
|
|
{
|
|
// This is no more the appropriate place to call cycle
|
|
// start. cycle_start needs to be called at the Route::roll()
|
|
// where the signals which we want to mixdown have been calculated.
|
|
//
|
|
MIDI::Manager::instance()->cycle_start(nframes);
|
|
|
|
_silent = false;
|
|
|
|
if (processing_blocked()) {
|
|
_silent = true;
|
|
return;
|
|
}
|
|
|
|
if (non_realtime_work_pending()) {
|
|
if (!transport_work_requested ()) {
|
|
post_transport ();
|
|
}
|
|
}
|
|
|
|
(this->*process_function) (nframes);
|
|
|
|
// the ticker is for sending time information like MidiClock
|
|
nframes_t transport_frames = transport_frame();
|
|
BBT_Time transport_bbt;
|
|
bbt_time(transport_frames, transport_bbt);
|
|
SMPTE::Time transport_smpte;
|
|
smpte_time(transport_frames, transport_smpte);
|
|
tick (transport_frames, transport_bbt, transport_smpte); /* EMIT SIGNAL */
|
|
|
|
SendFeedback (); /* EMIT SIGNAL */
|
|
|
|
MIDI::Manager::instance()->cycle_end();
|
|
}
|
|
|
|
void
|
|
Session::prepare_diskstreams ()
|
|
{
|
|
boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
|
|
for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
|
|
(*i)->prepare ();
|
|
}
|
|
}
|
|
|
|
int
|
|
Session::fail_roll (nframes_t nframes)
|
|
{
|
|
return no_roll (nframes);
|
|
}
|
|
|
|
int
|
|
Session::no_roll (nframes_t nframes)
|
|
{
|
|
nframes_t end_frame = _transport_frame + nframes; // FIXME: varispeed + no_roll ??
|
|
int ret = 0;
|
|
bool declick = get_transport_declick_required();
|
|
boost::shared_ptr<RouteList> r = routes.reader ();
|
|
|
|
if (_click_io) {
|
|
_click_io->silence (nframes);
|
|
}
|
|
|
|
for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
|
|
|
|
if ((*i)->is_hidden()) {
|
|
continue;
|
|
}
|
|
|
|
(*i)->set_pending_declick (declick);
|
|
|
|
if ((*i)->no_roll (nframes, _transport_frame, end_frame, non_realtime_work_pending(),
|
|
actively_recording(), declick)) {
|
|
error << string_compose(_("Session: error in no roll for %1"), (*i)->name()) << endmsg;
|
|
ret = -1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
Session::process_routes (nframes_t nframes)
|
|
{
|
|
bool record_active;
|
|
int declick = get_transport_declick_required();
|
|
bool rec_monitors = get_rec_monitors_input();
|
|
boost::shared_ptr<RouteList> r = routes.reader ();
|
|
|
|
if (transport_sub_state & StopPendingCapture) {
|
|
/* force a declick out */
|
|
declick = -1;
|
|
}
|
|
|
|
record_active = actively_recording(); // || (get_record_enabled() && get_punch_in());
|
|
|
|
const nframes_t start_frame = _transport_frame;
|
|
const nframes_t end_frame = _transport_frame + (nframes_t)floor(nframes * _transport_speed);
|
|
|
|
for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
|
|
|
|
int ret;
|
|
|
|
if ((*i)->is_hidden()) {
|
|
continue;
|
|
}
|
|
|
|
(*i)->set_pending_declick (declick);
|
|
|
|
if ((ret = (*i)->roll (nframes, start_frame, end_frame, declick, record_active, rec_monitors)) < 0) {
|
|
|
|
/* we have to do this here. Route::roll() for an AudioTrack will have called AudioDiskstream::process(),
|
|
and the DS will expect AudioDiskstream::commit() to be called. but we're aborting from that
|
|
call path, so make sure we release any outstanding locks here before we return failure.
|
|
*/
|
|
|
|
boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
|
|
for (DiskstreamList::iterator ids = dsl->begin(); ids != dsl->end(); ++ids) {
|
|
(*ids)->recover ();
|
|
}
|
|
|
|
stop_transport ();
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
Session::silent_process_routes (nframes_t nframes)
|
|
{
|
|
bool record_active = actively_recording();
|
|
int declick = get_transport_declick_required();
|
|
bool rec_monitors = get_rec_monitors_input();
|
|
boost::shared_ptr<RouteList> r = routes.reader ();
|
|
|
|
if (transport_sub_state & StopPendingCapture) {
|
|
/* force a declick out */
|
|
declick = -1;
|
|
}
|
|
|
|
const nframes_t start_frame = _transport_frame;
|
|
const nframes_t end_frame = _transport_frame + lrintf(nframes * _transport_speed);
|
|
|
|
for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
|
|
|
|
int ret;
|
|
|
|
if ((*i)->is_hidden()) {
|
|
continue;
|
|
}
|
|
|
|
if ((ret = (*i)->silent_roll (nframes, start_frame, end_frame, record_active, rec_monitors)) < 0) {
|
|
|
|
/* we have to do this here. Route::roll() for an AudioTrack will have called AudioDiskstream::process(),
|
|
and the DS will expect AudioDiskstream::commit() to be called. but we're aborting from that
|
|
call path, so make sure we release any outstanding locks here before we return failure.
|
|
*/
|
|
|
|
boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
|
|
for (DiskstreamList::iterator ids = dsl->begin(); ids != dsl->end(); ++ids) {
|
|
(*ids)->recover ();
|
|
}
|
|
|
|
stop_transport ();
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
Session::commit_diskstreams (nframes_t nframes, bool &needs_butler)
|
|
{
|
|
int dret;
|
|
float pworst = 1.0f;
|
|
float cworst = 1.0f;
|
|
|
|
boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
|
|
for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
|
|
|
|
if ((*i)->hidden()) {
|
|
continue;
|
|
}
|
|
|
|
/* force all diskstreams not handled by a Route to call do their stuff.
|
|
Note: the diskstreams that were handled by a route will just return zero
|
|
from this call, because they know they were processed. So in fact, this
|
|
also runs commit() for every diskstream.
|
|
*/
|
|
|
|
if ((dret = (*i)->process (_transport_frame, nframes, actively_recording(), get_rec_monitors_input())) == 0) {
|
|
if ((*i)->commit (nframes)) {
|
|
needs_butler = true;
|
|
}
|
|
|
|
} else if (dret < 0) {
|
|
(*i)->recover();
|
|
}
|
|
|
|
pworst = min (pworst, (*i)->playback_buffer_load());
|
|
cworst = min (cworst, (*i)->capture_buffer_load());
|
|
}
|
|
|
|
uint32_t pmin = g_atomic_int_get (&_playback_load);
|
|
uint32_t pminold = g_atomic_int_get (&_playback_load_min);
|
|
uint32_t cmin = g_atomic_int_get (&_capture_load);
|
|
uint32_t cminold = g_atomic_int_get (&_capture_load_min);
|
|
|
|
g_atomic_int_set (&_playback_load, (uint32_t) floor (pworst * 100.0f));
|
|
g_atomic_int_set (&_capture_load, (uint32_t) floor (cworst * 100.0f));
|
|
g_atomic_int_set (&_playback_load_min, min (pmin, pminold));
|
|
g_atomic_int_set (&_capture_load_min, min (cmin, cminold));
|
|
|
|
if (actively_recording()) {
|
|
set_dirty();
|
|
}
|
|
}
|
|
|
|
/** Process callback used when the auditioner is not active */
|
|
void
|
|
Session::process_with_events (nframes_t nframes)
|
|
{
|
|
Event* ev;
|
|
nframes_t this_nframes;
|
|
nframes_t end_frame;
|
|
bool session_needs_butler = false;
|
|
nframes_t stop_limit;
|
|
long frames_moved;
|
|
|
|
/* make sure the auditioner is silent */
|
|
|
|
if (auditioner) {
|
|
auditioner->silence (nframes);
|
|
}
|
|
|
|
/* handle any pending events */
|
|
|
|
while (pending_events.read (&ev, 1) == 1) {
|
|
merge_event (ev);
|
|
}
|
|
|
|
/* if we are not in the middle of a state change,
|
|
and there are immediate events queued up,
|
|
process them.
|
|
*/
|
|
|
|
while (!non_realtime_work_pending() && !immediate_events.empty()) {
|
|
Event *ev = immediate_events.front ();
|
|
immediate_events.pop_front ();
|
|
process_event (ev);
|
|
}
|
|
|
|
/* Events caused a transport change, send an MTC Full Frame (SMPTE) message.
|
|
* This is sent whether rolling or not, to give slaves an idea of ardour time
|
|
* on locates (and allow slow slaves to position and prepare for rolling)
|
|
*/
|
|
if (_send_smpte_update) {
|
|
send_full_time_code(nframes);
|
|
}
|
|
|
|
if (!process_can_proceed()) {
|
|
_silent = true;
|
|
return;
|
|
}
|
|
|
|
if (events.empty() || next_event == events.end()) {
|
|
process_without_events (nframes);
|
|
return;
|
|
}
|
|
|
|
/// TODO: Figure out what happens to phi and phase, if transport speed momentarily becomes
|
|
/// 1.0 eg. during the adjustments of a slave. If that is a bug, then AudioDiskstream::process
|
|
/// is very likely broken too
|
|
if (_transport_speed == 1.0) {
|
|
frames_moved = (long) nframes;
|
|
} else {
|
|
frames_moved = (long) AudioDiskstream::
|
|
calculate_varispeed_playback_distance(nframes, phase, phi, target_phi);
|
|
}
|
|
|
|
end_frame = _transport_frame + (nframes_t)frames_moved;
|
|
|
|
{
|
|
Event* this_event;
|
|
Events::iterator the_next_one;
|
|
|
|
if (!process_can_proceed()) {
|
|
_silent = true;
|
|
return;
|
|
}
|
|
|
|
if (!_exporting && _slave) {
|
|
if (!follow_slave (nframes)) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (_transport_speed == 0) {
|
|
no_roll (nframes);
|
|
return;
|
|
}
|
|
|
|
if (!_exporting) {
|
|
send_midi_time_code_for_cycle (nframes);
|
|
}
|
|
|
|
if (actively_recording()) {
|
|
stop_limit = max_frames;
|
|
} else {
|
|
|
|
if (Config->get_stop_at_session_end()) {
|
|
stop_limit = current_end_frame();
|
|
} else {
|
|
stop_limit = max_frames;
|
|
}
|
|
}
|
|
|
|
if (maybe_stop (stop_limit)) {
|
|
no_roll (nframes);
|
|
return;
|
|
}
|
|
|
|
this_event = *next_event;
|
|
the_next_one = next_event;
|
|
++the_next_one;
|
|
|
|
/* yes folks, here it is, the actual loop where we really truly
|
|
process some audio
|
|
*/
|
|
|
|
while (nframes) {
|
|
|
|
this_nframes = nframes; /* real (jack) time relative */
|
|
|
|
/* running an event, position transport precisely to its time */
|
|
if (this_event && this_event->action_frame <= end_frame && this_event->action_frame >= _transport_frame) {
|
|
/* this isn't quite right for reverse play */
|
|
frames_moved = (long) (this_event->action_frame - _transport_frame);
|
|
this_nframes = (nframes_t) abs( floor(frames_moved / _transport_speed) );
|
|
}
|
|
|
|
if (this_nframes) {
|
|
|
|
click (_transport_frame, this_nframes);
|
|
|
|
/* now process frames between now and the first event in this block */
|
|
prepare_diskstreams ();
|
|
|
|
if (process_routes (this_nframes)) {
|
|
fail_roll (nframes);
|
|
return;
|
|
}
|
|
|
|
commit_diskstreams (this_nframes, session_needs_butler);
|
|
|
|
nframes -= this_nframes;
|
|
|
|
if (frames_moved < 0) {
|
|
decrement_transport_position (-frames_moved);
|
|
} else {
|
|
increment_transport_position (frames_moved);
|
|
}
|
|
|
|
maybe_stop (stop_limit);
|
|
check_declick_out ();
|
|
}
|
|
|
|
_engine.split_cycle (this_nframes);
|
|
|
|
/* now handle this event and all others scheduled for the same time */
|
|
|
|
while (this_event && this_event->action_frame == _transport_frame) {
|
|
process_event (this_event);
|
|
|
|
if (the_next_one == events.end()) {
|
|
this_event = 0;
|
|
} else {
|
|
this_event = *the_next_one;
|
|
++the_next_one;
|
|
}
|
|
}
|
|
|
|
/* if an event left our state changing, do the right thing */
|
|
|
|
if (nframes && non_realtime_work_pending()) {
|
|
no_roll (nframes);
|
|
break;
|
|
}
|
|
|
|
/* this is necessary to handle the case of seamless looping */
|
|
end_frame = _transport_frame + (nframes_t) floor (nframes * _transport_speed);
|
|
|
|
}
|
|
|
|
set_next_event ();
|
|
|
|
} /* implicit release of route lock */
|
|
|
|
if (session_needs_butler)
|
|
summon_butler ();
|
|
}
|
|
|
|
void
|
|
Session::reset_slave_state ()
|
|
{
|
|
average_slave_delta = 1800;
|
|
delta_accumulator_cnt = 0;
|
|
have_first_delta_accumulator = false;
|
|
slave_state = Stopped;
|
|
}
|
|
|
|
bool
|
|
Session::transport_locked () const
|
|
{
|
|
Slave* sl = _slave;
|
|
|
|
if (!locate_pending() && ((Config->get_slave_source() == None) || (sl && sl->ok() && sl->locked()))) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
Session::follow_slave (nframes_t nframes)
|
|
{
|
|
double slave_speed;
|
|
nframes_t slave_transport_frame;
|
|
nframes_t this_delta;
|
|
int dir;
|
|
bool starting;
|
|
|
|
if (!_slave->ok()) {
|
|
stop_transport ();
|
|
Config->set_slave_source (None);
|
|
goto noroll;
|
|
}
|
|
|
|
_slave->speed_and_position (slave_speed, slave_transport_frame);
|
|
|
|
if (!_slave->locked()) {
|
|
goto noroll;
|
|
}
|
|
|
|
if (slave_transport_frame > _transport_frame) {
|
|
this_delta = slave_transport_frame - _transport_frame;
|
|
dir = 1;
|
|
} else {
|
|
this_delta = _transport_frame - slave_transport_frame;
|
|
dir = -1;
|
|
}
|
|
|
|
if ((starting = _slave->starting())) {
|
|
slave_speed = 0.0f;
|
|
}
|
|
|
|
if (_slave->is_always_synced() || config.get_timecode_source_is_synced()) {
|
|
|
|
/* if the TC source is synced, then we assume that its
|
|
speed is binary: 0.0 or 1.0
|
|
*/
|
|
|
|
if (slave_speed != 0.0f) {
|
|
slave_speed = 1.0f;
|
|
}
|
|
|
|
} else {
|
|
|
|
/* TC source is able to drift relative to us (slave)
|
|
so we need to keep track of the drift and adjust
|
|
our speed to remain locked.
|
|
*/
|
|
|
|
calculate_moving_average_of_slave_delta(dir, this_delta);
|
|
}
|
|
|
|
track_slave_state(slave_speed, slave_transport_frame, this_delta, starting);
|
|
|
|
if (slave_state == Running && !_slave->is_always_synced() && !config.get_timecode_source_is_synced()) {
|
|
|
|
if (_transport_speed != 0.0f) {
|
|
|
|
/*
|
|
note that average_dir is +1 or -1
|
|
*/
|
|
|
|
float delta;
|
|
|
|
#ifdef USE_MOVING_AVERAGE_OF_SLAVE
|
|
if (average_slave_delta == 0) {
|
|
delta = this_delta;
|
|
delta *= dir;
|
|
} else {
|
|
delta = average_slave_delta;
|
|
delta *= average_dir;
|
|
}
|
|
#else
|
|
delta = this_delta;
|
|
delta *= dir;
|
|
#endif
|
|
|
|
float adjusted_speed = slave_speed + (delta / float(_current_frame_rate));
|
|
|
|
if (_slave->give_slave_full_control_over_transport_speed()) {
|
|
request_transport_speed(slave_speed);
|
|
} else {
|
|
request_transport_speed(adjusted_speed);
|
|
#ifdef DEBUG_SLAVES
|
|
cerr << "adjust using " << delta
|
|
<< " towards " << adjusted_speed
|
|
<< " ratio = " << adjusted_speed / slave_speed
|
|
<< " current = " << _transport_speed
|
|
<< " slave @ " << slave_speed
|
|
<< endl;
|
|
#endif
|
|
}
|
|
|
|
if (abs(average_slave_delta) > (long) _slave->resolution()) {
|
|
cerr << "average slave delta greater than slave resolution, going to silent motion\n";
|
|
goto silent_motion;
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG_SLAVES
|
|
if (slave_speed != 0.0)
|
|
cerr << "delta = " << (int) (dir * this_delta)
|
|
<< " speed = " << slave_speed
|
|
<< " ts = " << _transport_speed
|
|
<< " M@ "<< slave_transport_frame << " S@ " << _transport_frame
|
|
<< " avgdelta = " << average_slave_delta
|
|
<< endl;
|
|
#endif
|
|
|
|
if (!starting && !non_realtime_work_pending()) {
|
|
/* speed is set, we're locked, and good to go */
|
|
return true;
|
|
}
|
|
|
|
silent_motion:
|
|
#ifdef DEBUG_SLAVES
|
|
cerr << "reached silent_motion:" <<endl;
|
|
#endif
|
|
|
|
follow_slave_silently (nframes, slave_speed);
|
|
|
|
noroll:
|
|
/* don't move at all */
|
|
#ifdef DEBUG_SLAVES
|
|
cerr << "reached no_roll:" <<endl;
|
|
#endif
|
|
no_roll (nframes);
|
|
return false;
|
|
}
|
|
|
|
void
|
|
Session::calculate_moving_average_of_slave_delta(int dir, nframes_t this_delta)
|
|
{
|
|
if (delta_accumulator_cnt >= delta_accumulator_size) {
|
|
have_first_delta_accumulator = true;
|
|
delta_accumulator_cnt = 0;
|
|
}
|
|
|
|
if (delta_accumulator_cnt != 0 || this_delta < _current_frame_rate) {
|
|
delta_accumulator[delta_accumulator_cnt++] = long(dir) * long(this_delta);
|
|
}
|
|
|
|
if (have_first_delta_accumulator) {
|
|
average_slave_delta = 0L;
|
|
for (int i = 0; i < delta_accumulator_size; ++i) {
|
|
average_slave_delta += delta_accumulator[i];
|
|
}
|
|
average_slave_delta /= long(delta_accumulator_size);
|
|
if (average_slave_delta < 0L) {
|
|
average_dir = -1;
|
|
average_slave_delta = abs(average_slave_delta);
|
|
} else {
|
|
average_dir = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
Session::track_slave_state(
|
|
float slave_speed,
|
|
nframes_t slave_transport_frame,
|
|
nframes_t this_delta,
|
|
bool starting)
|
|
{
|
|
if (slave_speed != 0.0f) {
|
|
|
|
/* slave is running */
|
|
|
|
switch (slave_state) {
|
|
case Stopped:
|
|
if (_slave->requires_seekahead()) {
|
|
slave_wait_end = slave_transport_frame + _current_frame_rate;
|
|
locate (slave_wait_end, false, false);
|
|
slave_state = Waiting;
|
|
starting = true;
|
|
|
|
} else {
|
|
|
|
slave_state = Running;
|
|
|
|
Location* al = _locations.auto_loop_location();
|
|
|
|
if (al && play_loop && (slave_transport_frame < al->start() || slave_transport_frame > al->end())) {
|
|
// cancel looping
|
|
request_play_loop(false);
|
|
}
|
|
|
|
if (slave_transport_frame != _transport_frame) {
|
|
locate (slave_transport_frame, false, false);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case Waiting:
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
|
|
}
|
|
|
|
if (slave_state == Waiting) {
|
|
|
|
#ifdef DEBUG_SLAVES
|
|
cerr << "waiting at " << slave_transport_frame << endl;
|
|
#endif
|
|
if (slave_transport_frame >= slave_wait_end) {
|
|
#ifdef DEBUG_SLAVES
|
|
cerr << "\tstart at " << _transport_frame << endl;
|
|
#endif
|
|
slave_state = Running;
|
|
|
|
bool ok = true;
|
|
nframes_t frame_delta = slave_transport_frame - _transport_frame;
|
|
|
|
boost::shared_ptr<DiskstreamList> dsl = diskstreams.reader();
|
|
|
|
for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
|
|
if (!(*i)->can_internal_playback_seek (frame_delta)) {
|
|
ok = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (ok) {
|
|
for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) {
|
|
(*i)->internal_playback_seek (frame_delta);
|
|
}
|
|
_transport_frame += frame_delta;
|
|
|
|
} else {
|
|
cerr << "cannot micro-seek\n";
|
|
/* XXX what? */
|
|
}
|
|
|
|
memset (delta_accumulator, 0, sizeof (long) * delta_accumulator_size);
|
|
average_slave_delta = 0L;
|
|
this_delta = 0;
|
|
}
|
|
}
|
|
|
|
if (slave_state == Running && _transport_speed == 0.0f) {
|
|
|
|
#ifdef DEBUG_SLAVES
|
|
cerr << "slave starts transport\n";
|
|
#endif
|
|
start_transport ();
|
|
}
|
|
|
|
} else { // slave_speed is 0
|
|
|
|
/* slave has stopped */
|
|
|
|
if (_transport_speed != 0.0f) {
|
|
|
|
#ifdef DEBUG_SLAVES
|
|
cerr << "slave stops transport: " << slave_speed << " frame: " << slave_transport_frame
|
|
<< " tf = " << _transport_frame << endl;
|
|
#endif
|
|
|
|
stop_transport();
|
|
}
|
|
|
|
if (slave_transport_frame != _transport_frame) {
|
|
#ifdef DEBUG_SLAVES
|
|
cerr << "slave stopped, move to " << slave_transport_frame << endl;
|
|
#endif
|
|
force_locate (slave_transport_frame, false);
|
|
}
|
|
|
|
slave_state = Stopped;
|
|
}
|
|
}
|
|
|
|
void
|
|
Session::follow_slave_silently (nframes_t nframes, float slave_speed)
|
|
{
|
|
if (slave_speed && _transport_speed) {
|
|
|
|
/* something isn't right, but we should move with the master
|
|
for now.
|
|
*/
|
|
|
|
bool need_butler;
|
|
|
|
prepare_diskstreams ();
|
|
silent_process_routes (nframes);
|
|
commit_diskstreams (nframes, need_butler);
|
|
|
|
if (need_butler) {
|
|
summon_butler ();
|
|
}
|
|
|
|
int32_t frames_moved = (int32_t) floor (_transport_speed * nframes);
|
|
|
|
if (frames_moved < 0) {
|
|
decrement_transport_position (-frames_moved);
|
|
} else {
|
|
increment_transport_position (frames_moved);
|
|
}
|
|
|
|
nframes_t stop_limit;
|
|
|
|
if (actively_recording()) {
|
|
stop_limit = max_frames;
|
|
} else {
|
|
if (Config->get_stop_at_session_end()) {
|
|
stop_limit = current_end_frame();
|
|
} else {
|
|
stop_limit = max_frames;
|
|
}
|
|
}
|
|
|
|
maybe_stop (stop_limit);
|
|
}
|
|
}
|
|
|
|
void
|
|
Session::process_without_events (nframes_t nframes)
|
|
{
|
|
bool session_needs_butler = false;
|
|
nframes_t stop_limit;
|
|
long frames_moved;
|
|
|
|
if (!process_can_proceed()) {
|
|
_silent = true;
|
|
return;
|
|
}
|
|
|
|
if (!_exporting && _slave) {
|
|
if (!follow_slave (nframes)) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (_transport_speed == 0) {
|
|
fail_roll (nframes);
|
|
return;
|
|
}
|
|
|
|
if (!_exporting) {
|
|
send_midi_time_code_for_cycle (nframes);
|
|
}
|
|
|
|
if (actively_recording()) {
|
|
stop_limit = max_frames;
|
|
} else {
|
|
if (Config->get_stop_at_session_end()) {
|
|
stop_limit = current_end_frame();
|
|
} else {
|
|
stop_limit = max_frames;
|
|
}
|
|
}
|
|
|
|
if (maybe_stop (stop_limit)) {
|
|
fail_roll (nframes);
|
|
return;
|
|
}
|
|
|
|
if (maybe_sync_start (nframes)) {
|
|
return;
|
|
}
|
|
|
|
click (_transport_frame, nframes);
|
|
|
|
prepare_diskstreams ();
|
|
|
|
/// TODO: Figure out what happens to phi and phase, if transport speed momentarily becomes
|
|
/// 1.0 eg. during the adjustments of a slave. If that is a bug, then AudioDiskstream::process
|
|
/// is very likely broken too
|
|
if (_transport_speed == 1.0) {
|
|
frames_moved = (long) nframes;
|
|
} else {
|
|
frames_moved = (long) AudioDiskstream::
|
|
calculate_varispeed_playback_distance(nframes, phase, phi, target_phi);
|
|
}
|
|
|
|
if (process_routes (nframes)) {
|
|
fail_roll (nframes);
|
|
return;
|
|
}
|
|
|
|
commit_diskstreams (nframes, session_needs_butler);
|
|
|
|
if (frames_moved < 0) {
|
|
decrement_transport_position (-frames_moved);
|
|
} else {
|
|
increment_transport_position (frames_moved);
|
|
}
|
|
|
|
maybe_stop (stop_limit);
|
|
check_declick_out ();
|
|
|
|
if (session_needs_butler)
|
|
summon_butler ();
|
|
}
|
|
|
|
/** Process callback used when the auditioner is active.
|
|
* @param nframes number of frames to process.
|
|
*/
|
|
void
|
|
Session::process_audition (nframes_t nframes)
|
|
{
|
|
Event* ev;
|
|
boost::shared_ptr<RouteList> r = routes.reader ();
|
|
|
|
for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
|
|
if (!(*i)->is_hidden()) {
|
|
(*i)->silence (nframes);
|
|
}
|
|
}
|
|
|
|
/* run the auditioner, and if it says we need butler service, ask for it */
|
|
|
|
if (auditioner->play_audition (nframes) > 0) {
|
|
summon_butler ();
|
|
}
|
|
|
|
/* handle pending events */
|
|
|
|
while (pending_events.read (&ev, 1) == 1) {
|
|
merge_event (ev);
|
|
}
|
|
|
|
/* if we are not in the middle of a state change,
|
|
and there are immediate events queued up,
|
|
process them.
|
|
*/
|
|
|
|
while (!non_realtime_work_pending() && !immediate_events.empty()) {
|
|
Event *ev = immediate_events.front ();
|
|
immediate_events.pop_front ();
|
|
process_event (ev);
|
|
}
|
|
|
|
if (!auditioner->active()) {
|
|
/* auditioner no longer active, so go back to the normal process callback */
|
|
process_function = &Session::process_with_events;
|
|
}
|
|
}
|
|
|
|
bool
|
|
Session::maybe_sync_start (nframes_t& nframes)
|
|
{
|
|
nframes_t sync_offset;
|
|
|
|
if (!waiting_for_sync_offset) {
|
|
return false;
|
|
}
|
|
|
|
if (_engine.get_sync_offset (sync_offset) && sync_offset < nframes) {
|
|
|
|
/* generate silence up to the sync point, then
|
|
adjust nframes + offset to reflect whatever
|
|
is left to do.
|
|
*/
|
|
|
|
no_roll (sync_offset);
|
|
nframes -= sync_offset;
|
|
Port::increment_port_offset (sync_offset);
|
|
waiting_for_sync_offset = false;
|
|
|
|
if (nframes == 0) {
|
|
return true; // done, nothing left to process
|
|
}
|
|
|
|
} else {
|
|
|
|
/* sync offset point is not within this process()
|
|
cycle, so just generate silence. and don't bother
|
|
with any fancy stuff here, just the minimal silence.
|
|
*/
|
|
|
|
_silent = true;
|
|
|
|
if (Config->get_locate_while_waiting_for_sync()) {
|
|
if (micro_locate (nframes)) {
|
|
/* XXX ERROR !!! XXX */
|
|
}
|
|
}
|
|
|
|
return true; // done, nothing left to process
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|