#include "pbd/failed_constructor.h"
#include "pbd/xml++.h"
+#include "ardour/audioengine.h"
+#include "ardour/audio_port.h"
+#include "ardour/buffer_set.h"
#include "ardour/delivery.h"
-#include "ardour/port_insert.h"
+#include "ardour/mtdm.h"
#include "ardour/plugin.h"
#include "ardour/port.h"
+#include "ardour/port_insert.h"
#include "ardour/route.h"
-#include "ardour/buffer_set.h"
-
-#include "ardour/audioengine.h"
#include "ardour/session.h"
#include "ardour/types.h"
using namespace ARDOUR;
using namespace PBD;
-PortInsert::PortInsert (Session& s, boost::shared_ptr<MuteMaster> mm)
+PortInsert::PortInsert (Session& s, boost::shared_ptr<Pannable> pannable, boost::shared_ptr<MuteMaster> mm)
: IOProcessor (s, true, true, string_compose (_("insert %1"), (bitslot = s.next_insert_id()) + 1), "")
- , _out (new Delivery (s, _output, mm, _name, Delivery::Insert))
+ , _out (new Delivery (s, _output, pannable, mm, _name, Delivery::Insert))
{
- ProcessorCreated (this); /* EMIT SIGNAL */
+ _mtdm = 0;
+ _latency_detect = false;
+ _latency_flush_frames = false;
+ _measured_latency = 0;
}
-PortInsert::PortInsert (Session& s, boost::shared_ptr<MuteMaster> mm, const XMLNode& node)
- : IOProcessor (s, true, true, "unnamed port insert")
- , _out (new Delivery (s, _output, mm, _name, Delivery::Insert))
+PortInsert::~PortInsert ()
+{
+ _session.unmark_insert_id (bitslot);
+ delete _mtdm;
+}
+void
+PortInsert::start_latency_detection ()
{
- if (set_state (node, Stateful::loading_state_version)) {
- throw failed_constructor();
- }
+ if (_mtdm != 0) {
+ delete _mtdm;
+ }
+
+ _mtdm = new MTDM;
+ _latency_flush_frames = false;
+ _latency_detect = true;
+ _measured_latency = 0;
+}
- ProcessorCreated (this); /* EMIT SIGNAL */
+void
+PortInsert::stop_latency_detection ()
+{
+ _latency_flush_frames = signal_latency() + _session.engine().frames_per_cycle();
+ _latency_detect = false;
}
-PortInsert::~PortInsert ()
+void
+PortInsert::set_measured_latency (framecnt_t n)
{
+ _measured_latency = n;
+}
+
+framecnt_t
+PortInsert::latency() const
+{
+ /* because we deliver and collect within the same cycle,
+ all I/O is necessarily delayed by at least frames_per_cycle().
+
+ if the return port for insert has its own latency, we
+ need to take that into account too.
+ */
+
+ if (_measured_latency == 0) {
+ return _session.engine().frames_per_cycle() + _input->latency();
+ } else {
+ return _measured_latency;
+ }
}
void
-PortInsert::run (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nframes_t nframes, bool)
+PortInsert::run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, pframes_t nframes, bool)
{
if (_output->n_ports().n_total() == 0) {
return;
}
+ if (_latency_detect) {
+
+ if (_input->n_ports().n_audio() != 0) {
+
+ AudioBuffer& outbuf (_output->ports().nth_audio_port(0)->get_audio_buffer (nframes));
+ Sample* in = _input->ports().nth_audio_port(0)->get_audio_buffer (nframes).data();
+ Sample* out = outbuf.data();
+
+ _mtdm->process (nframes, in, out);
+
+ outbuf.set_is_silent (false);
+ }
+
+ return;
+
+ } else if (_latency_flush_frames) {
+
+ /* wait for the entire input buffer to drain before picking up input again so that we can't
+ hear the remnants of whatever MTDM pumped into the pipeline.
+ */
+
+ silence (nframes);
+
+ if (_latency_flush_frames > nframes) {
+ _latency_flush_frames -= nframes;
+ } else {
+ _latency_flush_frames = 0;
+ }
+
+ return;
+ }
+
if (!_active && !_pending_active) {
/* deliver silence */
silence (nframes);
XMLNode&
PortInsert::state (bool full)
{
- XMLNode& node = Processor::state(full);
+ XMLNode& node = IOProcessor::state(full);
char buf[32];
node.add_property ("type", "port");
snprintf (buf, sizeof (buf), "%" PRIu32, bitslot);
node.add_property ("bitslot", buf);
+ snprintf (buf, sizeof (buf), "%" PRId64, _measured_latency);
+ node.add_property("latency", buf);
+ snprintf (buf, sizeof (buf), "%u", _session.get_block_size());
+ node.add_property("block_size", buf);
return node;
}
XMLPropertyList plist;
const XMLProperty *prop;
+ const XMLNode* insert_node = &node;
+
+ // legacy sessions: search for child Redirect node
+ for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
+ if ((*niter)->name() == "Redirect") {
+ insert_node = *niter;
+ break;
+ }
+ }
+
+ IOProcessor::set_state (*insert_node, version);
+
if ((prop = node.property ("type")) == 0) {
error << _("XML node describing port insert is missing the `type' field") << endmsg;
return -1;
return -1;
}
+ uint32_t blocksize = 0;
+ if ((prop = node.property ("block_size")) != 0) {
+ sscanf (prop->value().c_str(), "%u", &blocksize);
+ }
+
+ //if the jack period is the same as when the value was saved, we can recall our latency..
+ if ( (_session.get_block_size() == blocksize) && (prop = node.property ("latency")) != 0) {
+ uint32_t latency = 0;
+ sscanf (prop->value().c_str(), "%u", &latency);
+ _measured_latency = latency;
+ }
+
if ((prop = node.property ("bitslot")) == 0) {
bitslot = _session.next_insert_id();
} else {
+ _session.unmark_insert_id (bitslot);
sscanf (prop->value().c_str(), "%" PRIu32, &bitslot);
_session.mark_insert_id (bitslot);
}
- const XMLNode* insert_node = &node;
-
- // legacy sessions: search for child IOProcessor node
- for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
- if ((*niter)->name() == "IOProcessor") {
- insert_node = *niter;
- break;
- }
- }
-
- Processor::set_state (*insert_node, version);
-
return 0;
}
-ARDOUR::nframes_t
+ARDOUR::framecnt_t
PortInsert::signal_latency() const
{
/* because we deliver and collect within the same cycle,
need to take that into account too.
*/
- return _session.engine().frames_per_cycle() + _input->signal_latency();
+ if (_measured_latency == 0) {
+ return _session.engine().frames_per_cycle() + _input->signal_latency();
+ } else {
+ return _measured_latency;
+ }
}
+/** Caller must hold process lock */
bool
PortInsert::configure_io (ChanCount in, ChanCount out)
{
+ assert (!AudioEngine::instance()->process_lock().trylock());
+
/* for an insert, processor input corresponds to IO output, and vice versa */
if (_input->ensure_io (in, false, this) != 0) {
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