/*
* =================== Input/output port handling =========================
*/
static
void set_process_info(struct process_info *info, alsa_seqmidi_t *self, int dir, jack_nframes_t nframes)
{
const snd_seq_real_time_t* alsa_time;
snd_seq_queue_status_t *status;
snd_seq_queue_status_alloca(&status);
info->dir = dir;
info->period_start = jack_last_frame_time(self->jack);
info->nframes = nframes;
info->sample_rate = jack_get_sample_rate(self->jack);
info->cur_frames = jack_frame_time(self->jack);
// immediately get alsa'a real time (uhh, why everybody has their own 'real' time)
snd_seq_get_queue_status(self->seq, self->queue, status);
alsa_time = snd_seq_queue_status_get_real_time(status);
info->alsa_time = alsa_time->tv_sec * NSEC_PER_SEC + alsa_time->tv_nsec;
if (info->period_start + info->nframes < info->cur_frames) {
int periods_lost = (info->cur_frames - info->period_start) / info->nframes;
info->period_start += periods_lost * info->nframes;
debug_log("xrun detected: %d periods lost\n", periods_lost);
}
}
/* queue a note-off event by patch id */
void mixer_note_off_with_id(int id, int note)
{
writer->type = MIXER_NOTEOFF_WITH_ID;
writer->ticks = jack_last_frame_time(jc);
writer->id_note.id = id;
writer->id_note.note = note;
advance_writer();
}
/* queue a note-off event */
void mixer_note_off(int chan, int note)
{
writer->type = MIXER_NOTEOFF;
writer->ticks = jack_last_frame_time(jc);
writer->note.chan = chan;
writer->note.note = note;
advance_writer();
}
/* queue control change event */
void mixer_control(int chan, int param, float value)
{
writer->type = MIXER_CONTROL;
writer->ticks = jack_last_frame_time(jc);
writer->control.chan = chan;
writer->control.param = param;
writer->control.value = value;
advance_writer();
}
/* queue a note-on event by patch id */
void mixer_note_on_with_id(int id, int note, float vel)
{
writer->type = MIXER_NOTEON_WITH_ID;
writer->ticks = jack_last_frame_time(jc);
writer->id_note.id = id;
writer->id_note.note = note;
writer->id_note.vel = vel;
advance_writer();
}
/* queue a note-on event */
void mixer_note_on(int chan, int note, float vel)
{
writer->type = MIXER_NOTEON;
writer->ticks = jack_last_frame_time(jc);
writer->note.chan = chan;
writer->note.note = note;
writer->note.vel = vel;
advance_writer();
}
static
void jack_process(midi_stream_t *str, jack_nframes_t nframes)
{
int r, w;
process_jack_t proc;
jack_nframes_t cur_frames;
if (!str->owner->keep_walking)
return;
proc.midi = str->owner;
proc.nframes = nframes;
proc.frame_time = jack_last_frame_time(proc.midi->client);
cur_frames = jack_frame_time(proc.midi->client);
int periods_diff = cur_frames - proc.frame_time;
if (periods_diff < proc.nframes) {
int periods_lost = periods_diff / proc.nframes;
proc.frame_time += periods_lost * proc.nframes;
debug_log("xrun detected: %d periods lost", periods_lost);
}
// process existing ports
for (r=0, w=0; r<str->jack.nports; ++r) {
midi_port_t *port = str->jack.ports[r];
proc.port = port;
assert (port->state > PORT_ADDED_TO_JACK && port->state < PORT_REMOVED_FROM_JACK);
proc.buffer = jack_port_get_buffer(port->jack, nframes);
if (str->mode == POLLIN)
jack_midi_clear_buffer(proc.buffer);
if (port->state == PORT_REMOVED_FROM_MIDI) {
port->state = PORT_REMOVED_FROM_JACK; // this signals to scan thread
continue; // this effectively removes port from the midi->in.jack.ports[]
}
(str->process_jack)(&proc);
if (r != w)
str->jack.ports[w] = port;
++w;
}
if (str->jack.nports != w)
debug_log("jack_%s: nports %d -> %d", str->name, str->jack.nports, w);
str->jack.nports = w;
jack_add_ports(str); // it makes no sense to add them earlier since they have no data yet
// wake midi thread
write(str->wake_pipe[1], &r, 1);
}
void PlayerHandler::process(const jack_nframes_t nframes)
{
void* outPortBuf = jack_port_get_buffer(m_outputPort, nframes);
jack_midi_clear_buffer(outPortBuf);
jack_position_t pos;
const jack_transport_state_t state = jack_transport_query(m_client, &pos);
switch (state)
{
case JackTransportStopped:
{
if (m_previousState != state)
{
// stop them all now
allNotesOff(outPortBuf, 0);
// reset position
m_position = 0;
}
break;
}
case JackTransportRolling:
{
const jack_nframes_t framesAtStart = jack_last_frame_time(m_client);
const jack_nframes_t lastFrame = framesAtStart + nframes;
const jack_nframes_t startFrame = framesAtStart - pos.frame;
while (m_position < m_master.size() && startFrame + m_master[m_position].m_time >= framesAtStart && startFrame + m_master[m_position].m_time < lastFrame)
{
const MidiEvent & event = m_master[m_position];
const jack_nframes_t newOffset = event.m_time - pos.frame;
jack_midi_event_write(outPortBuf, newOffset, event.m_data, event.m_size);
noteChange(event.m_data);
++m_position;
}
break;
}
default:
{
break;
}
}
m_previousState = state;
}
static int
a2j_process (jack_nframes_t nframes, void * arg)
{
struct a2j* self = (struct a2j *) arg;
struct a2j_stream * stream_ptr;
int i;
struct a2j_port ** port_ptr;
struct a2j_port * port;
if (g_freewheeling) {
return 0;
}
self->cycle_start = jack_last_frame_time (self->jack_client);
stream_ptr = &self->stream;
a2j_add_ports (stream_ptr);
// process ports
for (i = 0 ; i < PORT_HASH_SIZE ; i++) {
port_ptr = &stream_ptr->port_hash[i];
while (*port_ptr != NULL) {
struct a2j_alsa_midi_event ev;
jack_nframes_t now;
jack_nframes_t one_period;
char *ev_buf;
port = *port_ptr;
if (port->is_dead) {
if (jack_ringbuffer_write_space (self->port_del) >= sizeof(port_ptr)) {
a2j_debug("jack: removed port %s", port->name);
*port_ptr = port->next;
jack_ringbuffer_write (self->port_del, (char*)&port, sizeof(port));
} else {
a2j_error ("port deletion lost - no space in event buffer!");
}
port_ptr = &port->next;
continue;
}
port->jack_buf = jack_port_get_buffer(port->jack_port, nframes);
/* grab data queued by the ALSA input thread and write it into the JACK
port buffer. it will delivered during the JACK period that this
function is called from.
*/
/* first clear the JACK port buffer in preparation for new data
*/
// a2j_debug ("PORT: %s process input", jack_port_name (port->jack_port));
jack_midi_clear_buffer (port->jack_buf);
now = jack_frame_time (self->jack_client);
one_period = jack_get_buffer_size (self->jack_client);
while (jack_ringbuffer_peek (port->inbound_events, (char*)&ev, sizeof(ev) ) == sizeof(ev) ) {
jack_midi_data_t* buf;
jack_nframes_t offset;
if (ev.time >= self->cycle_start) {
break;
}
//jack_ringbuffer_read_advance (port->inbound_events, sizeof (ev));
ev_buf = (char *) alloca( sizeof(ev) + ev.size );
if (jack_ringbuffer_peek (port->inbound_events, ev_buf, sizeof(ev) + ev.size ) != sizeof(ev) + ev.size)
break;
offset = self->cycle_start - ev.time;
if (offset > one_period) {
/* from a previous cycle, somehow. cram it in at the front */
offset = 0;
} else {
/* offset from start of the current cycle */
offset = one_period - offset;
}
a2j_debug ("event at %d offset %d", ev.time, offset);
/* make sure there is space for it */
buf = jack_midi_event_reserve (port->jack_buf, offset, ev.size);
if (buf) {
/* grab the event */
memcpy( buf, ev_buf + sizeof(ev), ev.size );
} else {
/* throw it away (no space) */
a2j_error ("threw away MIDI event - not reserved at time %d", ev.time);
}
jack_ringbuffer_read_advance (port->inbound_events, sizeof(ev) + ev.size);
a2j_debug("input on %s: sucked %d bytes from inbound at %d", jack_port_name (port->jack_port), ev.size, ev.time);
}
port_ptr = &port->next;
}
}
return 0;
}
/* mix current soundscape into buf */
void mixer_mixdown(float *buf, int frames)
{
Tick curticks = jack_last_frame_time(jc);
Event* event = NULL;
int wrote = 0;
int write;
int i;
int d = 0;
float logvol = 0.0;
for (i = 0; i < frames * 2; i++)
buf[i] = 0.0;
/* adjust the ticks in the direct events */
for (i = 0; i < direct_events_end; ++i)
direct_events[i].ticks += curticks - frames;
/* get the first event */
if (reader != writer)
{
if (d < direct_events_end
&& direct_events[d].ticks < reader->ticks)
{
event = &direct_events[d++];
}
else
{
event = reader;
advance_reader();
}
}
else if (d < direct_events_end)
event = &direct_events[d++];
/* process events */
while (event)
{
if (event->ticks > curticks)
break;
write = event->ticks - (curticks - frames + wrote);
if (write > 0)
{
patch_render(buf + wrote*2, write);
wrote += write;
}
switch (event->type)
{
case MIXER_NOTEON:
patch_trigger( event->note.chan,
event->note.note,
event->note.vel,
event->ticks);
break;
case MIXER_NOTEON_WITH_ID:
patch_trigger_with_id( event->id_note.id,
event->id_note.note,
event->id_note.vel,
event->ticks);
break;
case MIXER_NOTEOFF:
patch_release(event->note.chan, event->note.note);
break;
case MIXER_NOTEOFF_WITH_ID:
patch_release_with_id(event->id_note.id, event->id_note.note);
break;
case MIXER_CONTROL:
patch_control( event->control.chan,
event->control.param,
event->control.value);
break;
case MIXER_PITCH_BEND:
patch_control( event->control.chan,
CC_PITCH_WHEEL,
event->control.value);
break;
default:
break;
}
/* get next event */
if (reader != writer)
{
if (d < direct_events_end
&& direct_events[d].ticks < reader->ticks)
{
event = &direct_events[d++];
}
else
{
event = reader;
advance_reader();
}
}
else if (d < direct_events_end)
event = &direct_events[d++];
else
event = NULL;
}
/* reset the direct event buffer */
direct_events_end = 0;
if (wrote < frames)
patch_render(buf + wrote*2, frames - wrote);
preview_render(buf, frames);
/* scale to master amplitude */
logvol = log_amplitude(amplitude);
for (i = 0; i < frames * 2; i++)
buf[i] *= logvol;
}
uint32_t JackAudioSystem::segment_start_time_stamp()
{
if( !_client ) return 0;
return jack_last_frame_time(_client);
}
static int
handle_process(jack_nframes_t frames, void *arg)
{
jack_midi_data_t *buffer;
jack_midi_event_t event;
jack_nframes_t event_count;
jack_nframes_t event_time;
jack_nframes_t frame;
size_t i;
jack_nframes_t last_frame_time;
jack_midi_data_t *message;
jack_time_t microseconds;
void *port_buffer;
jack_time_t time;
jack_midi_clear_buffer(jack_port_get_buffer(out_port, frames));
switch (process_state) {
case 0:
/* State: initializing */
switch (wait_semaphore(init_semaphore, 0)) {
case -1:
set_process_error(SOURCE_WAIT_SEMAPHORE, get_semaphore_error());
/* Fallthrough on purpose */
case 0:
return 0;
}
highest_latency = 0;
lowest_latency = 0;
messages_received = 0;
messages_sent = 0;
process_state = 1;
total_latency = 0;
total_latency_time = 0;
unexpected_messages = 0;
xrun_count = 0;
jack_port_get_latency_range(remote_in_port, JackCaptureLatency,
&in_latency_range);
jack_port_get_latency_range(remote_out_port, JackPlaybackLatency,
&out_latency_range);
goto send_message;
case 1:
/* State: processing */
port_buffer = jack_port_get_buffer(in_port, frames);
event_count = jack_midi_get_event_count(port_buffer);
last_frame_time = jack_last_frame_time(client);
for (i = 0; i < event_count; i++) {
jack_midi_event_get(&event, port_buffer, i);
message = (messages_received % 2) ? message_2 : message_1;
if ((event.size == message_size) &&
(! memcmp(message, event.buffer,
message_size * sizeof(jack_midi_data_t)))) {
goto found_message;
}
unexpected_messages++;
}
microseconds = jack_frames_to_time(client, last_frame_time) -
last_activity_time;
if ((microseconds / 1000000) >= timeout) {
set_process_error(SOURCE_PROCESS, ERROR_MSG_TIMEOUT);
}
break;
found_message:
event_time = last_frame_time + event.time;
frame = event_time - last_activity;
time = jack_frames_to_time(client, event_time) - last_activity_time;
if ((! highest_latency) || (frame > highest_latency)) {
highest_latency = frame;
highest_latency_time = time;
}
if ((! lowest_latency) || (frame < lowest_latency)) {
lowest_latency = frame;
lowest_latency_time = time;
}
latency_time_values[messages_received] = time;
latency_values[messages_received] = frame;
total_latency += frame;
total_latency_time += time;
messages_received++;
if (messages_received == samples) {
process_state = 2;
if (! signal_semaphore(process_semaphore)) {
/* Sigh ... */
die(SOURCE_SIGNAL_SEMAPHORE, get_semaphore_error());
}
break;
}
send_message:
frame = (jack_nframes_t) ((((double) rand()) / RAND_MAX) * frames);
if (frame >= frames) {
frame = frames - 1;
}
port_buffer = jack_port_get_buffer(out_port, frames);
buffer = jack_midi_event_reserve(port_buffer, frame, message_size);
if (buffer == NULL) {
set_process_error(SOURCE_EVENT_RESERVE, ERROR_RESERVE);
break;
}
message = (messages_sent % 2) ? message_2 : message_1;
memcpy(buffer, message, message_size * sizeof(jack_midi_data_t));
last_activity = jack_last_frame_time(client) + frame;
last_activity_time = jack_frames_to_time(client, last_activity);
messages_sent++;
case 2:
/* State: finished - do nothing */
case -1:
/* State: error - do nothing */
case -2:
/* State: signalled - do nothing */
;
}
return 0;
}
void
process_midi_input (jack_nframes_t nframes)
{
static int time_of_first_event = -1;
int /*read,*/ events, i, channel;
jack_midi_event_t event;
int last_frame_time = jack_last_frame_time(jack_client);
void * port_buffer = jack_port_get_buffer(input_port, nframes);
if (port_buffer == NULL)
{
warn_from_jack_thread_context
(
"jack_port_get_buffer failed, cannot receive anything."
);
return;
}
#ifdef JACK_MIDI_NEEDS_NFRAMES
events = jack_midi_get_event_count(port_buffer, nframes);
#else
events = jack_midi_get_event_count(port_buffer);
#endif
for (i = 0; i < events; ++i)
{
smf_event_t * smf_event;
#ifdef JACK_MIDI_NEEDS_NFRAMES
int read = jack_midi_event_get(&event, port_buffer, i, nframes);
#else
int read = jack_midi_event_get(&event, port_buffer, i);
#endif
if (read) {
warn_from_jack_thread_context("jack_midi_event_get failed, RECEIVED NOTE LOST.");
continue;
}
if (event.buffer[0] >= 0xF8) /* Ignore realtime messages. */
continue;
if (time_of_first_event == -1) /* First event received? */
time_of_first_event = last_frame_time + event.time;
smf_event = smf_event_new_from_pointer(event.buffer, event.size);
if (smf_event == NULL)
{
warn_from_jack_thread_context
(
"smf_event_from_pointer failed, RECEIVED NOTE LOST."
);
continue;
}
// assert(smf_event->midi_buffer_length >= 1);
channel = smf_event->midi_buffer[0] & 0x0F;
smf_track_add_event_seconds
(
tracks[channel], smf_event,
nframes_to_seconds
(
jack_last_frame_time(jack_client) + event.time - time_of_first_event
)
);
}
}
// JACK specifics.
int qmidinetJackMidiDevice::process ( jack_nframes_t nframes )
{
jack_nframes_t buffer_size = jack_get_buffer_size(m_pJackClient);
m_last_frame_time = jack_last_frame_time(m_pJackClient);
// Enqueue/dequeue events
// to/from ring-buffers...
for (int i = 0; i < m_nports; ++i) {
if (m_ppJackPortIn && m_ppJackPortIn[i] && m_pJackBufferIn) {
void *pvBufferIn
= jack_port_get_buffer(m_ppJackPortIn[i], nframes);
const int nevents = jack_midi_get_event_count(pvBufferIn);
const unsigned int nlimit
= jack_ringbuffer_write_space(m_pJackBufferIn);
unsigned char achBuffer[nlimit];
unsigned char *pchBuffer = &achBuffer[0];
unsigned int nwrite = 0;
for (int n = 0; n < nevents; ++n) {
if (nwrite + sizeof(qmidinetJackMidiEvent) >= nlimit)
break;
qmidinetJackMidiEvent *pJackEventIn
= (struct qmidinetJackMidiEvent *) pchBuffer;
jack_midi_event_get(&pJackEventIn->event, pvBufferIn, n);
if (nwrite + sizeof(qmidinetJackMidiEvent)
+ pJackEventIn->event.size >= nlimit)
break;
pJackEventIn->port = i;
pchBuffer += sizeof(qmidinetJackMidiEvent);
nwrite += sizeof(qmidinetJackMidiEvent);
::memcpy(pchBuffer,
pJackEventIn->event.buffer, pJackEventIn->event.size);
pchBuffer += pJackEventIn->event.size;
nwrite += pJackEventIn->event.size;
}
if (nwrite > 0) {
jack_ringbuffer_write(m_pJackBufferIn,
(const char *) achBuffer, nwrite);
}
}
if (m_ppJackPortOut && m_ppJackPortOut[i] && m_pJackBufferOut) {
void *pvBufferOut
= jack_port_get_buffer(m_ppJackPortOut[i], nframes);
jack_midi_clear_buffer(pvBufferOut);
const unsigned int nlimit
= jack_midi_max_event_size(pvBufferOut);
unsigned int nread = 0;
qmidinetJackMidiEvent ev;
while (jack_ringbuffer_peek(m_pJackBufferOut,
(char *) &ev, sizeof(ev)) == sizeof(ev)
&& nread < nlimit) {
if (ev.port != i)
break;
if (ev.event.time > m_last_frame_time)
break;
jack_nframes_t offset = m_last_frame_time - ev.event.time;
if (offset > buffer_size)
offset = 0;
else
offset = buffer_size - offset;
jack_ringbuffer_read_advance(m_pJackBufferOut, sizeof(ev));
jack_midi_data_t *pMidiData
= jack_midi_event_reserve(pvBufferOut, offset, ev.event.size);
if (pMidiData)
jack_ringbuffer_read(m_pJackBufferOut,
(char *) pMidiData, ev.event.size);
else
jack_ringbuffer_read_advance(m_pJackBufferOut, ev.event.size);
nread += ev.event.size;
}
}
}
if (m_pJackBufferIn
&& jack_ringbuffer_read_space(m_pJackBufferIn) > 0)
m_pRecvThread->sync();
return 0;
}
static void
process_midi_output(jack_nframes_t nframes)
{
int i, t, bytes_remaining, track_number;
unsigned char *buffer, tmp_status;
void *port_buffers[MAX_NUMBER_OF_TRACKS];
jack_nframes_t last_frame_time;
jack_transport_state_t transport_state;
static jack_transport_state_t previous_transport_state = JackTransportStopped;
static int previous_playback_started = -1;
static int previous_playback_paused = 0;
for (i = 0; i <= smf->number_of_tracks; i++) {
port_buffers[i] = jack_port_get_buffer(output_ports[i], nframes);
if (port_buffers[i] == NULL) {
warn_from_jack_thread_context("jack_port_get_buffer failed, cannot send anything.");
return;
}
#ifdef JACK_MIDI_NEEDS_NFRAMES
jack_midi_clear_buffer(port_buffers[i], nframes);
#else
jack_midi_clear_buffer(port_buffers[i]);
#endif
if (just_one_output)
break;
}
if (ctrl_c_pressed) {
send_all_sound_off(port_buffers, nframes);
/* The idea here is to exit at the second time process_midi_output gets called.
Otherwise, All Sound Off won't be delivered. */
ctrl_c_pressed++;
if (ctrl_c_pressed >= 3)
exit(0);
return;
}
// g_debug("PROCESS CALLBACK!!!");
if (playback_paused) {
if (!previous_playback_paused) {
send_all_sound_off(port_buffers, nframes);
}
previous_playback_paused = playback_paused;
return;
}
previous_playback_paused = playback_paused;
if (use_transport) {
// if (!ready_to_roll) return;
transport_state = jack_transport_query(jack_client, NULL);
if (transport_state == JackTransportStopped) {
if (previous_transport_state == JackTransportRolling) {
send_all_sound_off(port_buffers, nframes);
}
playback_started = -1;
}
if (transport_state == JackTransportStarting) {
playback_started = -1;
}
if (transport_state == JackTransportRolling) {
if (previous_transport_state != JackTransportRolling) {
jack_position_t position;
jack_transport_query(jack_client, &position);
song_position = position.frame;
playback_started = jack_last_frame_time(jack_client);
}
}
previous_transport_state = transport_state;
}
else {
if (playback_started == -1) {
if (previous_playback_started >= 0) {
send_all_sound_off(port_buffers, nframes);
send_sond_end();
}
}
previous_playback_started = playback_started;
}
/* End of song already? */
if (playback_started < 0)
return;
last_frame_time = jack_last_frame_time(jack_client);
/* We may push at most one byte per 0.32ms to stay below 31.25 Kbaud limit. */
bytes_remaining = nframes_to_ms(nframes) * rate_limit;
double loop_offset = loop_song(smf);
for (;;) {
smf_event_t *event = smf_peek_next_event(smf);
int end_of_song = 0;
int is_meta_event = 0;
if (event == NULL) {
end_of_song = 1;
}
else if (smf_event_is_metadata(event)) {
is_meta_event = 1;
char *decoded = smf_event_decode(event);
if (decoded) {
if (!be_quiet)
g_debug("Metadata: %s", decoded);
end_of_song = process_meta_event(decoded);
free(decoded);
}
}
if (end_of_song) {
if (!be_quiet)
g_debug("End of song.");
playback_started = -1;
if (!use_transport)
ctrl_c_pressed = 1;
break;
}
if (is_meta_event) {
smf_event_t *ret = smf_get_next_event(smf);
assert(ret != 0);
continue;
}
bytes_remaining -= event->midi_buffer_length;
if (rate_limit > 0.0 && bytes_remaining <= 0) {
warn_from_jack_thread_context("Rate limiting in effect.");
break;
}
// t = seconds_to_nframes(event->time_seconds) + playback_started - song_position + nframes - last_frame_time;
t = seconds_to_nframes(event->time_seconds + loop_offset) + playback_started - song_position - last_frame_time;
/* If computed time is too much into the future, we'll need
to send it later. */
if (t >= (int)nframes)
break;
/* If computed time is < 0, we missed a cycle because of xrun. */
if (t < 0)
t = 0;
assert(event->track->track_number >= 0 && event->track->track_number <= MAX_NUMBER_OF_TRACKS);
/* We will send this event; remove it from the queue. */
smf_event_t *ret = smf_get_next_event(smf);
assert(ret != 0);
/* First, send it via midi_out. */
track_number = 0;
#ifdef JACK_MIDI_NEEDS_NFRAMES
buffer = jack_midi_event_reserve(port_buffers[track_number], t, event->midi_buffer_length, nframes);
#else
buffer = jack_midi_event_reserve(port_buffers[track_number], t, event->midi_buffer_length);
#endif
if (buffer == NULL) {
warn_from_jack_thread_context("jack_midi_event_reserve failed, NOTE LOST.");
break;
}
memcpy(buffer, event->midi_buffer, event->midi_buffer_length);
/* Ignore per-track outputs? */
if (just_one_output)
continue;
/* Send it via proper output port. */
track_number = event->track->track_number;
#ifdef JACK_MIDI_NEEDS_NFRAMES
buffer = jack_midi_event_reserve(port_buffers[track_number], t, event->midi_buffer_length, nframes);
#else
buffer = jack_midi_event_reserve(port_buffers[track_number], t, event->midi_buffer_length);
#endif
if (buffer == NULL) {
warn_from_jack_thread_context("jack_midi_event_reserve failed, NOTE LOST.");
break;
}
/* Before sending, reset channel to 0. XXX: Not very pretty. */
assert(event->midi_buffer_length >= 1);
tmp_status = event->midi_buffer[0];
if (event->midi_buffer[0] >= 0x80 && event->midi_buffer[0] <= 0xEF)
event->midi_buffer[0] &= 0xF0;
memcpy(buffer, event->midi_buffer, event->midi_buffer_length);
event->midi_buffer[0] = tmp_status;
}
}
jack_nframes_t luajack_last_frame_time(luajack_t *client)
{
cud_t *cud = get_cud(client);
if(!cud) return 0;
return jack_last_frame_time(cud->client);
}