* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-
-/* use an additional midi message parser
- *
- * coreaudio does packetize midi. every packet includes a timestamp.
- * With any real midi-device with a phyical layer
- * 1 packet = 1 event (no concurrent events are possible on a cable)
- *
- * Howver, some USB-midi keyboards manage to send concurrent events
- * which end up in the same packet (eg. 6 byte message: 2 note-on).
- *
- * An additional parser is needed to separate them
- */
-#define USE_MIDI_PARSER
-
-
#include <regex.h>
#include <sys/mman.h>
#include <sys/time.h>
, _dsp_load (0)
, _processed_samples (0)
, _port_change_flag (false)
-#ifdef USE_MIDI_PARSER
- , _unbuffered_bytes(0)
- , _total_bytes(0)
- , _expected_bytes(0)
- , _status_byte(0)
- , _parser_bytes(0)
-#endif
{
_instance_name = s_instance_name;
pthread_mutex_init (&_port_callback_mutex, 0);
printf("STATE: %d\n", _pcmio->state ());
#endif
switch (_pcmio->state ()) {
- case 0: /* OK */
- break;
- case -1:
- PBD::error << _("CoreAudioBackend: Invalid Device ID.") << endmsg;
- error_code = AudioDeviceInvalidError;
- break;
- case -2:
- PBD::error << _("CoreAudioBackend: Failed to resolve Device-Component by ID.") << endmsg;
- error_code = AudioDeviceNotAvailableError;
- break;
- case -3:
- PBD::error << _("CoreAudioBackend: failed to open device.") << endmsg;
- error_code = AudioDeviceOpenError;
- break;
- case -4:
- PBD::error << _("CoreAudioBackend: cannot set requested sample rate.") << endmsg;
- error_code = SampleRateNotSupportedError;
- break;
- case -5:
- PBD::error << _("CoreAudioBackend: cannot configure requested buffer size.") << endmsg;
- error_code = PeriodSizeNotSupportedError;
- break;
- case -6:
- PBD::error << _("CoreAudioBackend: unsupported sample format.") << endmsg;
- error_code = SampleFormatNotSupportedError;
- break;
- case -7:
- PBD::error << _("CoreAudioBackend: Failed to enable Device.") << endmsg;
- error_code = BackendInitializationError; // XXX
- break;
- case -8:
- PBD::error << _("CoreAudioBackend: Cannot allocate buffers, out-of-memory.") << endmsg;
- error_code = OutOfMemoryError;
- break;
- case -9:
- PBD::error << _("CoreAudioBackend: Failed to set device-property listeners.") << endmsg;
- error_code = BackendInitializationError; // XXX
- break;
- case -10:
- PBD::error << _("CoreAudioBackend: Setting Process Callback failed.") << endmsg;
- error_code = AudioDeviceIOError;
- break;
- case -11:
- PBD::error << _("CoreAudioBackend: cannot use requested period size.") << endmsg;
- error_code = PeriodSizeNotSupportedError;
- break;
- case -12:
- PBD::error << _("CoreAudioBackend: cannot create aggregate device.") << endmsg;
- error_code = DeviceConfigurationNotSupportedError;
- break;
- default:
- PBD::error << _("CoreAudioBackend: initialization failure.") << endmsg;
- error_code = BackendInitializationError;
- break;
+ case 0: /* OK */
+ break;
+ case -1:
+ PBD::error << _("CoreAudioBackend: Invalid Device ID.") << endmsg;
+ error_code = AudioDeviceInvalidError;
+ break;
+ case -2:
+ PBD::error << _("CoreAudioBackend: Failed to resolve Device-Component by ID.") << endmsg;
+ error_code = AudioDeviceNotAvailableError;
+ break;
+ case -3:
+ PBD::error << _("CoreAudioBackend: failed to open device.") << endmsg;
+ error_code = AudioDeviceOpenError;
+ break;
+ case -4:
+ PBD::error << _("CoreAudioBackend: cannot set requested sample rate.") << endmsg;
+ error_code = SampleRateNotSupportedError;
+ break;
+ case -5:
+ PBD::error << _("CoreAudioBackend: cannot configure requested buffer size.") << endmsg;
+ error_code = PeriodSizeNotSupportedError;
+ break;
+ case -6:
+ PBD::error << _("CoreAudioBackend: unsupported sample format.") << endmsg;
+ error_code = SampleFormatNotSupportedError;
+ break;
+ case -7:
+ PBD::error << _("CoreAudioBackend: Failed to enable Device.") << endmsg;
+ error_code = BackendInitializationError; // XXX
+ break;
+ case -8:
+ PBD::error << _("CoreAudioBackend: Cannot allocate buffers, out-of-memory.") << endmsg;
+ error_code = OutOfMemoryError;
+ break;
+ case -9:
+ PBD::error << _("CoreAudioBackend: Failed to set device-property listeners.") << endmsg;
+ error_code = BackendInitializationError; // XXX
+ break;
+ case -10:
+ PBD::error << _("CoreAudioBackend: Setting Process Callback failed.") << endmsg;
+ error_code = AudioDeviceIOError;
+ break;
+ case -11:
+ PBD::error << _("CoreAudioBackend: cannot use requested period size.") << endmsg;
+ error_code = PeriodSizeNotSupportedError;
+ break;
+ case -12:
+ PBD::error << _("CoreAudioBackend: cannot create aggregate device.") << endmsg;
+ error_code = DeviceConfigurationNotSupportedError;
+ break;
+ default:
+ PBD::error << _("CoreAudioBackend: initialization failure.") << endmsg;
+ error_code = BackendInitializationError;
+ break;
}
if (_pcmio->state ()) {
return error_code;
if (_n_outputs != _pcmio->n_playback_channels ()) {
if (_n_outputs == 0) {
- _n_outputs = _pcmio->n_playback_channels ();
+ _n_outputs = _pcmio->n_playback_channels ();
} else {
- _n_outputs = std::min (_n_outputs, _pcmio->n_playback_channels ());
+ _n_outputs = std::min (_n_outputs, _pcmio->n_playback_channels ());
}
PBD::info << _("CoreAudioBackend: adjusted output channel count to match device.") << endmsg;
}
if (_n_inputs != _pcmio->n_capture_channels ()) {
if (_n_inputs == 0) {
- _n_inputs = _pcmio->n_capture_channels ();
+ _n_inputs = _pcmio->n_capture_channels ();
} else {
- _n_inputs = std::min (_n_inputs, _pcmio->n_capture_channels ());
+ _n_inputs = std::min (_n_inputs, _pcmio->n_capture_channels ());
}
PBD::info << _("CoreAudioBackend: adjusted input channel count to match device.") << endmsg;
}
CoreAudioBackend::raw_buffer_size (DataType t)
{
switch (t) {
- case DataType::AUDIO:
- return _samples_per_period * sizeof(Sample);
- case DataType::MIDI:
- return _max_buffer_size; // XXX not really limited
+ case DataType::AUDIO:
+ return _samples_per_period * sizeof(Sample);
+ case DataType::MIDI:
+ return _max_buffer_size; // XXX not really limited
}
return 0;
}
ThreadData* td = new ThreadData (this, func, stacksize);
if (_realtime_pthread_create (SCHED_FIFO, -21, stacksize,
- &thread_id, coreaudio_process_thread, td)) {
+ &thread_id, coreaudio_process_thread, td)) {
pthread_attr_init (&attr);
pthread_attr_setstacksize (&attr, stacksize);
if (pthread_create (&thread_id, &attr, coreaudio_process_thread, td)) {
CoreAudioBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const
{
if (!valid_port (port)) {
- PBD::warning << _("CoreAudioBackend::get_port_name: Invalid Port(s)") << endmsg;
+ PBD::warning << _("CoreAudioBackend::get_port_property: Invalid Port(s)") << endmsg;
return -1;
}
if (key == "http://jackaudio.org/metadata/pretty-name") {
return -1;
}
+int
+CoreAudioBackend::set_port_property (PortHandle port, const std::string& key, const std::string& value, const std::string& type)
+{
+ if (!valid_port (port)) {
+ PBD::warning << _("CoreAudioBackend::set_port_property: Invalid Port(s)") << endmsg;
+ return -1;
+ }
+ if (key == "http://jackaudio.org/metadata/pretty-name" && type.empty ()) {
+ static_cast<CoreBackendPort*>(port)->set_pretty_name (value);
+ return 0;
+ }
+ return -1;
+}
+
PortEngine::PortHandle
CoreAudioBackend::get_port_by_name (const std::string& name) const
{
int
CoreAudioBackend::get_ports (
- const std::string& port_name_pattern,
- DataType type, PortFlags flags,
- std::vector<std::string>& port_names) const
+ const std::string& port_name_pattern,
+ DataType type, PortFlags flags,
+ std::vector<std::string>& port_names) const
{
int rv = 0;
regex_t port_regex;
PortEngine::PortHandle
CoreAudioBackend::register_port (
- const std::string& name,
- ARDOUR::DataType type,
- ARDOUR::PortFlags flags)
+ const std::string& name,
+ ARDOUR::DataType type,
+ ARDOUR::PortFlags flags)
{
if (name.size () == 0) { return 0; }
if (flags & IsPhysical) { return 0; }
PortEngine::PortHandle
CoreAudioBackend::add_port (
- const std::string& name,
- ARDOUR::DataType type,
- ARDOUR::PortFlags flags)
+ const std::string& name,
+ ARDOUR::DataType type,
+ ARDOUR::PortFlags flags)
{
assert(name.size ());
if (find_port (name)) {
PBD::warning << _("CoreAudioBackend::register_port: Port already exists:")
- << " (" << name << ")" << endmsg;
+ << " (" << name << ")" << endmsg;
return 0;
}
CoreBackendPort* port = NULL;
switch (type) {
- case DataType::AUDIO:
- port = new CoreAudioPort (*this, name, flags);
- break;
- case DataType::MIDI:
- port = new CoreMidiPort (*this, name, flags);
- break;
- default:
- PBD::error << _("CoreAudioBackend::register_port: Invalid Data Type.") << endmsg;
- return 0;
+ case DataType::AUDIO:
+ port = new CoreAudioPort (*this, name, flags);
+ break;
+ case DataType::MIDI:
+ port = new CoreMidiPort (*this, name, flags);
+ break;
+ default:
+ PBD::error << _("CoreAudioBackend::register_port: Invalid Data Type.") << endmsg;
+ return 0;
}
_ports.push_back (port);
#ifndef NDEBUG
printf("COREAUDIO LATENCY: i:%d, o:%d\n",
- coreaudio_reported_input_latency,
- coreaudio_reported_output_latency);
+ coreaudio_reported_input_latency,
+ coreaudio_reported_output_latency);
#endif
/* audio ports */
if (!src_port) {
PBD::warning << _("CoreAudioBackend::connect: Invalid Source port:")
- << " (" << src <<")" << endmsg;
+ << " (" << src <<")" << endmsg;
return -1;
}
if (!dst_port) {
PBD::warning << _("CoreAudioBackend::connect: Invalid Destination port:")
- << " (" << dst <<")" << endmsg;
+ << " (" << dst <<")" << endmsg;
return -1;
}
return src_port->connect (dst_port);
}
if (!dst_port) {
PBD::warning << _("CoreAudioBackend::connect: Invalid Destination Port")
- << " (" << dst << ")" << endmsg;
+ << " (" << dst << ")" << endmsg;
return -1;
}
return static_cast<CoreBackendPort*>(src)->connect (dst_port);
/* MIDI */
int
CoreAudioBackend::midi_event_get (
- pframes_t& timestamp,
- size_t& size, uint8_t** buf, void* port_buffer,
- uint32_t event_index)
+ pframes_t& timestamp,
+ size_t& size, uint8_t** buf, void* port_buffer,
+ uint32_t event_index)
{
if (!buf || !port_buffer) return -1;
CoreMidiBuffer& source = * static_cast<CoreMidiBuffer*>(port_buffer);
}
int
-CoreAudioBackend::midi_event_put (
- void* port_buffer,
- pframes_t timestamp,
- const uint8_t* buffer, size_t size)
+CoreAudioBackend::_midi_event_put (
+ void* port_buffer,
+ pframes_t timestamp,
+ const uint8_t* buffer, size_t size)
{
if (!buffer || !port_buffer) return -1;
CoreMidiBuffer& dst = * static_cast<CoreMidiBuffer*>(port_buffer);
#ifndef NDEBUG
// nevermind, ::get_buffer() sorts events
fprintf (stderr, "CoreMidiBuffer: unordered event: %d > %d\n",
- (pframes_t)dst.back ()->timestamp (), timestamp);
+ (pframes_t)dst.back ()->timestamp (), timestamp);
#endif
}
dst.push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (timestamp, buffer, size)));
return 0;
}
+
uint32_t
CoreAudioBackend::get_midi_event_count (void* port_buffer)
{
CoreBackendPort* port = _ports[i];
if (port->is_output () && port->is_physical ()) {
switch (port->type ()) {
- case DataType::AUDIO: ++n_audio; break;
- case DataType::MIDI: ++n_midi; break;
- default: break;
+ case DataType::AUDIO: ++n_audio; break;
+ case DataType::MIDI: ++n_midi; break;
+ default: break;
}
}
}
CoreBackendPort* port = _ports[i];
if (port->is_input () && port->is_physical ()) {
switch (port->type ()) {
- case DataType::AUDIO: ++n_audio; break;
- case DataType::MIDI: ++n_midi; break;
- default: break;
+ case DataType::AUDIO: ++n_audio; break;
+ case DataType::MIDI: ++n_midi; break;
+ default: break;
}
}
}
}
}
+void
+CoreAudioBackend::reset_midi_parsers ()
+{
+ for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
+ CoreMidiPort* port = dynamic_cast<CoreMidiPort*>(*it);
+ if (port) {
+ port->reset_parser ();
+ }
+ }
+}
+
void *
CoreAudioBackend::freewheel_thread ()
{
_freewheel = false; // first mark as disabled
_reinit_thread_callback = true; // hand over _main_thread
_freewheel_ack = false; // prepare next handshake
+ reset_midi_parsers ();
_midiio->set_enabled(true);
+ engine.freewheel_callback (_freewheeling);
} else {
first_run = true;
_freewheel = true;
_main_thread = pthread_self();
AudioEngine::thread_init_callback (this);
_midiio->set_enabled(false);
+ reset_midi_parsers ();
}
// process port updates first in every cycle.
}
return 0;
}
-
-#ifdef USE_MIDI_PARSER
-bool
-CoreAudioBackend::midi_process_byte (const uint8_t byte)
-{
- if (byte >= 0xf8) {
- // Realtime
- if (byte == 0xfd) {
- // undefined
- return false;
- }
- midi_prepare_byte_event (byte);
- return true;
- }
- if (byte == 0xf7) {
- // Sysex end
- if (_status_byte == 0xf0) {
- midi_record_byte (byte);
- return midi_prepare_buffered_event ();
- }
- _total_bytes = 0;
- _unbuffered_bytes = 0;
- _expected_bytes = 0;
- _status_byte = 0;
- return false;
- }
- if (byte >= 0x80) {
- // Non-realtime status byte
- if (_total_bytes) {
- _total_bytes = 0;
- _unbuffered_bytes = 0;
- }
- _status_byte = byte;
- switch (byte & 0xf0) {
- case 0x80:
- case 0x90:
- case 0xa0:
- case 0xb0:
- case 0xe0:
- // Note On, Note Off, Aftertouch, Control Change, Pitch Wheel
- _expected_bytes = 3;
- break;
- case 0xc0:
- case 0xd0:
- // Program Change, Channel Pressure
- _expected_bytes = 2;
- break;
- case 0xf0:
- switch (byte) {
- case 0xf0:
- // Sysex
- _expected_bytes = 0;
- break;
- case 0xf1:
- case 0xf3:
- // MTC Quarter Frame, Song Select
- _expected_bytes = 2;
- break;
- case 0xf2:
- // Song Position
- _expected_bytes = 3;
- break;
- case 0xf4:
- case 0xf5:
- // Undefined
- _expected_bytes = 0;
- _status_byte = 0;
- return false;
- case 0xf6:
- // Tune Request
- midi_prepare_byte_event (byte);
- _expected_bytes = 0;
- _status_byte = 0;
- return true;
- }
- }
- midi_record_byte (byte);
- return false;
- }
- // Data byte
- if (! _status_byte) {
- // Data bytes without a status will be discarded.
- _total_bytes++;
- _unbuffered_bytes++;
- return false;
- }
- if (! _total_bytes) {
- midi_record_byte (_status_byte);
- }
- midi_record_byte(byte);
- return (_total_bytes == _expected_bytes) ? midi_prepare_buffered_event() : false;
-}
-#endif
-
-
int
CoreAudioBackend::process_callback (const uint32_t n_samples, const uint64_t host_time)
{
/* get midi */
i=0;
for (std::vector<CoreBackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
- CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>((*it)->get_buffer(0));
- mbuf->clear();
+ CoreMidiPort* port = dynamic_cast<CoreMidiPort*> (*it);
+ if (!port) {
+ continue;
+ }
uint64_t time_ns;
uint8_t data[128]; // matches CoreMidi's MIDIPacket
size_t size = sizeof(data);
+
+ port->clear_events ();
+
while (_midiio->recv_event (i, nominal_time, time_ns, data, size)) {
pframes_t time = floor((float) time_ns * _samplerate * 1e-9);
assert (time < n_samples);
-#ifndef USE_MIDI_PARSER
- midi_event_put((void*)mbuf, time, data, size);
-#else
- assert (size < 128);// coremidi limit per packet
- bool first_time = true; // this would need to be rememberd per port.
- for (size_t mb = 0; mb < size; ++mb) {
- if (first_time && !(data[mb] & 0x80)) {
- /* expect a status byte at the beginning or every Packet.
- *
- * This parser drops messages spanning multiple packets
- * (sysex > 127 bytes).
- * see also libs/backends/alsa/alsa_rawmidi.cc
- * which implements a complete parser per port without this limit.
- */
- continue;
- }
- first_time = false;
-
- if (midi_process_byte (data[mb])) {
- midi_event_put ((void*)mbuf, time, _parser_buffer, _parser_bytes);
- }
- }
-#endif
- size = sizeof(data);
+ port->parse_events (time, data, size);
+ size = sizeof(data); /* prepare for next call to recv_event */
}
}
if (is_connected (port)) {
#if 0 // don't bother to warn about this for now. just ignore it
PBD::info << _("CoreBackendPort::connect (): ports are already connected:")
- << " (" << name () << ") -> (" << port->name () << ")"
- << endmsg;
+ << " (" << name () << ") -> (" << port->name () << ")"
+ << endmsg;
#endif
return -1;
}
if (!is_connected (port)) {
PBD::warning << _("CoreBackendPort::disconnect (): ports are not connected:")
- << " (" << name () << ") -> (" << port->name () << ")"
- << endmsg;
+ << " (" << name () << ") -> (" << port->name () << ")"
+ << endmsg;
return -1;
}
_disconnect (port, true);
: CoreBackendPort (b, name, flags)
, _n_periods (1)
, _bufperiod (0)
+ , _event (0, 0)
+ , _first_time(true)
+ , _unbuffered_bytes(0)
+ , _total_bytes(0)
+ , _expected_bytes(0)
+ , _status_byte(0)
+
{
_buffer[0].clear ();
_buffer[1].clear ();
if (is_input ()) {
(_buffer[_bufperiod]).clear ();
for (std::vector<CoreBackendPort*>::const_iterator i = get_connections ().begin ();
- i != get_connections ().end ();
- ++i) {
+ i != get_connections ().end ();
+ ++i) {
const CoreMidiBuffer * src = static_cast<const CoreMidiPort*>(*i)->const_buffer ();
for (CoreMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) {
(_buffer[_bufperiod]).push_back (boost::shared_ptr<CoreMidiEvent>(new CoreMidiEvent (**it)));
}
std::sort ((_buffer[_bufperiod]).begin (), (_buffer[_bufperiod]).end (), MidiEventSorter());
}
+
return &(_buffer[_bufperiod]);
}
+int
+CoreMidiPort::queue_event (
+ void* port_buffer,
+ pframes_t timestamp,
+ const uint8_t* buffer, size_t size)
+{
+ const int ret = CoreAudioBackend::_midi_event_put (port_buffer, timestamp, buffer, size);
+ if (!ret) { /* success */
+ _event._pending = false;
+ }
+ return ret;
+}
+
+void
+CoreMidiPort::reset_parser ()
+{
+ _event._pending = false;
+ _first_time = true;
+ _unbuffered_bytes = 0;
+ _total_bytes = 0;
+ _expected_bytes = 0;
+ _status_byte = 0;
+}
+
+void
+CoreMidiPort::clear_events ()
+{
+ CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>(get_buffer(0));
+ mbuf->clear();
+}
+
+void
+CoreMidiPort::parse_events (const uint64_t time, const uint8_t *data, const size_t size)
+{
+ CoreMidiBuffer* mbuf = static_cast<CoreMidiBuffer*>(get_buffer(0));
+
+ if (_event._pending) {
+ if (queue_event (mbuf, _event._time, _parser_buffer, _event._size)) {
+ return;
+ }
+ }
+
+ for (size_t i = 0; i < size; ++i) {
+ if (_first_time && !(data[i] & 0x80)) {
+ continue;
+ }
+
+ _first_time = false;
+
+ if (process_byte(time, data[i])) {
+ if (queue_event (mbuf, _event._time, _parser_buffer, _event._size)) {
+ return;
+ }
+ }
+ }
+}
+
+// based on JackMidiRawInputWriteQueue by Devin Anderson //
+bool
+CoreMidiPort::process_byte(const uint64_t time, const uint8_t byte)
+{
+ if (byte >= 0xf8) {
+ // Realtime
+ if (byte == 0xfd) {
+ return false;
+ }
+ _parser_buffer[0] = byte;
+ prepare_byte_event(time, byte);
+ return true;
+ }
+ if (byte == 0xf7) {
+ // Sysex end
+ if (_status_byte == 0xf0) {
+ record_byte(byte);
+ return prepare_buffered_event(time);
+ }
+ _total_bytes = 0;
+ _unbuffered_bytes = 0;
+ _expected_bytes = 0;
+ _status_byte = 0;
+ return false;
+ }
+ if (byte >= 0x80) {
+ // Non-realtime status byte
+ if (_total_bytes) {
+ printf ("CoreMidiPort: discarded bogus midi message\n");
+#if 0
+ for (size_t i=0; i < _total_bytes; ++i) {
+ printf("%02x ", _parser_buffer[i]);
+ }
+ printf("\n");
+#endif
+ _total_bytes = 0;
+ _unbuffered_bytes = 0;
+ }
+ _status_byte = byte;
+ switch (byte & 0xf0) {
+ case 0x80:
+ case 0x90:
+ case 0xa0:
+ case 0xb0:
+ case 0xe0:
+ // Note On, Note Off, Aftertouch, Control Change, Pitch Wheel
+ _expected_bytes = 3;
+ break;
+ case 0xc0:
+ case 0xd0:
+ // Program Change, Channel Pressure
+ _expected_bytes = 2;
+ break;
+ case 0xf0:
+ switch (byte) {
+ case 0xf0:
+ // Sysex
+ _expected_bytes = 0;
+ break;
+ case 0xf1:
+ case 0xf3:
+ // MTC Quarter Frame, Song Select
+ _expected_bytes = 2;
+ break;
+ case 0xf2:
+ // Song Position
+ _expected_bytes = 3;
+ break;
+ case 0xf4:
+ case 0xf5:
+ // Undefined
+ _expected_bytes = 0;
+ _status_byte = 0;
+ return false;
+ case 0xf6:
+ // Tune Request
+ prepare_byte_event(time, byte);
+ _expected_bytes = 0;
+ _status_byte = 0;
+ return true;
+ }
+ }
+ record_byte(byte);
+ return false;
+ }
+ // Data byte
+ if (! _status_byte) {
+ // Data bytes without a status will be discarded.
+ _total_bytes++;
+ _unbuffered_bytes++;
+ return false;
+ }
+ if (! _total_bytes) {
+ record_byte(_status_byte);
+ }
+ record_byte(byte);
+ return (_total_bytes == _expected_bytes) ? prepare_buffered_event(time) : false;
+}
+
+
CoreMidiEvent::CoreMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size)
: _size (size)
, _timestamp (timestamp)