void
Transport::locate ( nframes_t frame )
{
if ( ! recording )
// don't allow seeking while record is in progress
jack_transport_locate( client, frame );
}
static void jack_transport_float(jack_transport_t * x, float f)
{
if (!x->x_jack_client)
return;
jack_transport_locate(x->x_jack_client, (jack_nframes_t)f);
}
static void cbox_jackio_control_transport(struct cbox_io_impl *impl, gboolean roll, uint32_t pos)
{
struct cbox_jack_io_impl *jii = (struct cbox_jack_io_impl *)impl;
if (jii->debug_transport)
g_message("JACK transport: control(op=%s, pos=%d)\n", roll ? "roll" : "stop", (int)pos);
jack_transport_state_t state = jack_transport_query(jii->client, NULL);
if (roll && pos != (uint32_t)-1)
jack_transport_locate(jii->client, pos);
if (roll && state == JackTransportStopped)
jack_transport_start(jii->client);
if (!roll && state != JackTransportStopped)
jack_transport_stop(jii->client);
if (!roll && pos != (uint32_t)-1)
jack_transport_locate(jii->client, pos);
}
static void com_locate(char *arg)
{
jack_nframes_t frame = 0;
if (*arg != '\0')
frame = atoi(arg);
jack_transport_locate(client, frame);
}
static void on_jack_seek( mlt_properties owner, mlt_filter filter, mlt_position *position )
{
mlt_properties properties = MLT_FILTER_PROPERTIES( filter );
mlt_log_verbose( MLT_FILTER_SERVICE(filter), "%s: %d\n", __FUNCTION__, *position );
mlt_properties_set_int( properties, "_sync_guard", 1 );
mlt_profile profile = mlt_service_profile( MLT_FILTER_SERVICE( filter ) );
jack_client_t *jack_client = mlt_properties_get_data( properties, "jack_client", NULL );
jack_nframes_t jack_frame = jack_get_sample_rate( jack_client );
jack_frame *= *position / mlt_profile_fps( profile );
jack_transport_locate( jack_client, jack_frame );
}
void JackOutput::locate( unsigned long nFrame )
{
if ( ( Preferences::get_instance() )->m_bJackTransportMode == Preferences::USE_JACK_TRANSPORT /*|| Preferences::get_instance()->m_bJackMasterMode == Preferences::USE_JACK_TIME_MASTER*/ ) {
if ( client ) {
WARNINGLOG( QString( "Calling jack_transport_locate(%1)" ).arg( nFrame ) );
jack_transport_locate( client, nFrame );
}
} else {
m_transport.m_nFrames = nFrame;
}
}
static PyObject* transport_locate (PyObject* self, PyObject* args)
{
pyjack_client_t * client = self_or_global_client(self);
jack_nframes_t newfr;
if (! PyArg_ParseTuple(args, "i", &newfr))
return NULL;
if(client->pjc == NULL) {
PyErr_SetString(JackNotConnectedError, "Jack connection has not yet been established.");
return NULL;
}
jack_transport_locate (client->pjc,newfr);
return Py_None;
}
void JackAudioDriver::locate( unsigned long nFrame )
{
if ( ( Preferences::get_instance() )->m_bJackTransportMode ==
Preferences::USE_JACK_TRANSPORT /*||
Preferences::get_instance()->m_bJackMasterMode ==
Preferences::USE_JACK_TIME_MASTER*/ ) {
if ( m_pClient ) {
// jack_transport_locate() (jack/transport.h )
// re-positions the transport to a new frame number.
// May be called at any time by any client. The new
// position takes effect in two process cycles.
jack_transport_locate( m_pClient, nFrame );
}
} else {
m_transport.m_nFrames = nFrame;
}
}
static void do_jack(jack_client_t* client, char *button, int bk)
{
black_keys = bk;
// Jack Transport
if (button[0] && (button[0] != button_prev_val[0])) //select :: Change octave
{
if (oct == 0) {
oct = 1; //C6
if (debug) printf("STAT: Changed base octave to C6\n");
} else if (oct == 1) {
oct = 2; //C7
if (debug) printf("STAT: Changed base octave to C7\n");
} else if (oct == 2) {
oct = -2; //C3
if (debug) printf("STAT: Changed base octave to C3\n");
} else if (oct == -2) {
oct = -1; //C4
if (debug) printf("STAT: Changed base octave to C4\n");
} else {
oct = 0; //C5
if (debug) printf("STAT: Changed base octave to C5\n");
}
}
else if (button[3] && (button[3] != button_prev_val[3])) //start :: Start/Stop Transport
{
state = jack_transport_query(client, NULL);
if (state) {
jack_transport_stop(client);
if (debug) printf("STAT: Transport stopped\n");
} else {
jack_transport_start(client);
if (debug) printf("STAT: Transport started\n");
}
}
if (button[16] && (button[16] != button_prev_val[16])) //PS :: Panic button
{
if (debug) printf("STAT: Panic!\n");
jack_transport_stop(client);
jack_transport_locate(client, 0);
jack_transport_stop(client);
int h;
for (h=8; h<20; h++) {
axis[h] = 0;
axis_prev_velocity[h] = 0;
}
}
else if (button[1]) //L3 :: Move transport backwards
{
jack_transport_query(client, &position);
int prevJackFrame = position.frame - 100000;
if (prevJackFrame < 0) prevJackFrame = 0;
jack_transport_locate(client, prevJackFrame);
if (button[1] != button_prev_val[1])
if (debug) printf("STAT: Transport backwards...\n");
}
else if (button[1] != button_prev_val[1])
{
if (debug) printf("STAT: Transport normal\n");
}
else if (button[2]) //R3 :: Move transport forwards
{
jack_transport_query(client, &position);
int nextJackFrame = position.frame + 100000;
jack_transport_locate(client, nextJackFrame);
if (button[2] != button_prev_val[2])
if (debug) printf("STAT: Transport forwards...\n");
}
else if (button[2] != button_prev_val[2])
{
if (debug) printf("STAT: Transport normal\n");
}
button_prev_val[0] = button[0];
button_prev_val[1] = button[1];
button_prev_val[2] = button[2];
button_prev_val[3] = button[3];
button_prev_val[16] = button[16];
}
void jackt_rewind() {
if (jack_client) {
jack_transport_locate (jack_client,0);
}
}
void
audioStreamer_JACK::timebase_cb(jack_transport_state_t state, jack_nframes_t nframes, jack_position_t *pos, int new_pos ) {
static double jack_tick;
static jack_nframes_t last_frame;
static jack_nframes_t current_frame;
jack_position_t cur_pos;
static jack_transport_state_t state_current;
static jack_transport_state_t state_last;
static int locating = 0;
#if 0
if( state != JackTransportRolling )
{
jack_transport_locate( client, 0 );
jack_transport_start( client );
}
#endif
if( !njc ) return;
int posi, len;
njc->GetPosition(&posi,&len);
float bpm = njc->GetActualBPM();
//posi = njc->GetSessionPosition() * m_srate / 1000;
//len = (int)(njc->GetBPI() * m_srate * 60 / bpm);
// sync jack_transport_frame to njframe
//current_frame = jack_get_current_transport_frame( client );
jack_transport_query(client, &cur_pos);
current_frame = cur_pos.frame;
// FIXME: This will not work right, if there are slow-sync clients....
int diff = abs(current_frame % len) - (posi % len);
if( diff > nframes ) {
#if 1
jack_transport_locate( client, (current_frame / len) * len + (posi%len) + 2*nframes );
//printf( "no: current= %d diff = %d\n", (current_frame % len) - (posi % len), diff );
#endif
}
// taken from seq24-0.7.0 perform.cpp
state_current = state;
//printf( "jack_timebase_callback() [%d] [%d] [%d]", state, new_pos, current_frame);
pos->valid = JackPositionBBT;
pos->beats_per_bar = 4;
pos->beat_type = 4;
pos->ticks_per_beat = c_ppqn * 10;
pos->beats_per_minute = bpm;
/* Compute BBT info from frame number. This is relatively
* simple here, but would become complex if we supported tempo
* or time signature changes at specific locations in the
* transport timeline. */
// if we are in a new position
if ( state_last == JackTransportStarting &&
state_current == JackTransportRolling ){
//printf ( "Starting [%d] [%d]\n", last_frame, current_frame );
jack_tick = 0.0;
last_frame = current_frame;
}
if ( current_frame > last_frame ){
double jack_delta_tick =
(current_frame - last_frame) *
pos->ticks_per_beat *
pos->beats_per_minute / (pos->frame_rate * 60.0);
jack_tick += jack_delta_tick;
last_frame = current_frame;
}
long ptick = 0, pbeat = 0, pbar = 0;
pbar = (long) ((long) jack_tick / (pos->ticks_per_beat * pos->beats_per_bar ));
pbeat = (long) ((long) jack_tick % (long) (pos->ticks_per_beat * pos->beats_per_bar ));
pbeat = pbeat / (long) pos->ticks_per_beat;
ptick = (long) jack_tick % (long) pos->ticks_per_beat;
pos->bar = pbar + 1;
pos->beat = pbeat + 1;
pos->tick = ptick;;
pos->bar_start_tick = pos->bar * pos->beats_per_bar *
pos->ticks_per_beat;
//printf( " bbb [%2d:%2d:%4d]\n", pos->bar, pos->beat, pos->tick );
state_last = state_current;
}
void
Client::transport_locate ( nframes_t frame )
{
jack_transport_locate( _client, frame );
}
void
jack_assistant::position (bool songmode, midipulse tick)
{
#ifdef SEQ64_JACK_SUPPORT
long current_tick = 0;
if (songmode) /* master in song mode */
{
if (! is_null_midipulse(tick))
current_tick = tick * 10;
}
int ticks_per_beat = m_ppqn * 10;
int beats_per_minute = parent().get_beats_per_minute();
uint64_t tick_rate = (uint64_t(m_jack_frame_rate) * current_tick * 60.0);
long tpb_bpm = ticks_per_beat * beats_per_minute * 4.0 / m_beat_width;
uint64_t jack_frame = tick_rate / tpb_bpm;
jack_transport_locate(m_jack_client, jack_frame);
#ifdef SEQ64_STAZED_JACK_SUPPORT
#if 0
/*
* The call to jack_BBT_position() is not necessary to change JACK
* position! Must set these here since they are set in timebase.
*/
jack_position_t pos;
double jack_tick = current_tick * m_bw / 4.0;
pos.ticks_per_beat = m_ppqn * 10;
pos.beats_per_minute = m_master_bus.get_bpm();
jack_BBT_position(pos, jack_tick);
/*
* Calculate JACK frame to put into pos.frame; it is what matters for
* position change. Very similar to the uncommented code above.
*/
uint64_t tick_rate = ((uint64_t)pos.frame_rate * current_tick * 60.0);
long tpb_bpm = pos.ticks_per_beat * pos.beats_per_minute *
4.0 / pos.beat_type;
pos.frame = tick_rate / tpb_bpm;
/*
* ticks * 10 = jack ticks;
* jack ticks / ticks per beat = num beats;
* num beats / beats per minute = num minutes
* num minutes * 60 = num seconds
* num secords * frame_rate = frame
*/
jack_transport_reposition(m_jack_client, &pos);
#endif // 0
if (parent().is_running())
parent().set_reposition(false);
#endif // SEQ64_STAZED_JACK_SUPPORT
Tutorial code from jack_assistant::position():
#ifdef SAMPLE_AUDIO_CODE // disabled, shown only for reference & learning
jack_transport_state_t ts = jack_transport_query(jack->client(), NULL);
if (ts == JackTransportRolling)
{
jack_default_audio_sample_t * in;
jack_default_audio_sample_t * out;
if (client_state == Init)
client_state = Run;
in = jack_port_get_buffer(input_port, nframes);
out = jack_port_get_buffer(output_port, nframes);
memcpy(out, in, sizeof (jack_default_audio_sample_t) * nframes);
}
else if (ts == JackTransportStopped)
{
if (client_state == Run)
client_state = Exit;
}
#endif
}
void AUD_JackDevice::seekPlayback(float time)
{
if(time >= 0.0f)
jack_transport_locate(m_client, time * m_specs.rate);
}
int
main(int argc, char *argv[])
{
int ch;
char *file_name, *autoconnect_port_name = NULL;
#ifdef WITH_LASH
lash_args_t *lash_args;
#endif
g_thread_init(NULL);
#ifdef WITH_LASH
lash_args = lash_extract_args(&argc, &argv);
#endif
g_log_set_default_handler(log_handler, NULL);
while ((ch = getopt(argc, argv, "a:dnqr:stVx")) != -1) {
switch (ch) {
case 'a':
autoconnect_port_name = strdup(optarg);
break;
case 'd':
debug = 1;
break;
case 'n':
start_stopped = 1;
break;
case 'q':
be_quiet = 1;
break;
case 'r':
rate_limit = strtod(optarg, NULL);
if (rate_limit <= 0.0) {
g_critical("Invalid rate limit specified.\n");
exit(EX_USAGE);
}
break;
case 's':
just_one_output = 1;
break;
case 't':
use_transport = 0;
break;
case 'x':
remote_control = 1;
break;
case 'V':
show_version();
break;
case '?':
default:
usage();
break;
}
}
argc -= optind;
argv += optind;
if (argv[0] == NULL) {
g_critical("No file name given.");
usage();
}
file_name = argv[0];
if (!remote_control) {
smf_vol = smf = smf_load(file_name);
if (smf == NULL) {
g_critical("Loading SMF file failed.");
exit(-1);
}
if (!be_quiet)
g_message("%s.", smf_decode(smf));
if (smf->number_of_tracks > MAX_NUMBER_OF_TRACKS) {
g_warning("Number of tracks (%d) exceeds maximum for per-track output; implying '-s' option.", smf->number_of_tracks);
just_one_output = 1;
}
}
#ifdef WITH_LASH
init_lash(lash_args);
#endif
g_timeout_add(1000, emergency_exit_timeout, (gpointer)0);
signal(SIGINT, ctrl_c_handler);
init_jack();
if (autoconnect_port_name) {
if (connect_to_input_port(autoconnect_port_name)) {
g_critical("Couldn't connect to '%s', exiting.", autoconnect_port_name);
exit(EX_UNAVAILABLE);
}
}
if (use_transport && !start_stopped) {
jack_transport_locate(jack_client, 0);
jack_transport_start(jack_client);
}
if (!use_transport)
playback_started = jack_frame_time(jack_client);
if (remote_control)
remote_control_start(argv[0]);
g_main_loop_run(g_main_loop_new(NULL, TRUE));
/* Not reached. */
return 0;
}
//------------------------------------------------------------------------
void TJackSynchro::StartSync()
{
assert(fClient);
jack_transport_locate(fClient, 0);
jack_transport_start(fClient);
}
//------------------------------------------------------------------------
void TJackSynchro::Locate(int frames)
{
jack_transport_locate(fClient, frames);
}
void rove_transport_stop() {
jack_transport_stop(state.client);
jack_transport_locate(state.client, 0);
}
int luajack_transport_locate(luajack_t *client, jack_nframes_t frame)
{
cud_t *cud = get_cud(client);
if(!cud) return 0;
return jack_transport_locate(cud->client, frame);
}
