*/
#include <iostream>
#include <errno.h>
-#include <poll.h>
#include <sys/types.h>
#include <unistd.h>
#include "pbd/error.h"
+#include "pbd/pthread_utils.h"
#include "ardour/debug.h"
#include "ardour/slave.h"
memset(&prev_frame, 0, sizeof(LTCFrameExt));
decoder = ltc_decoder_create((int) frames_per_ltc_frame, 128 /*queue size*/);
+
+ session.config.ParameterChanged.connect_same_thread (config_connection, boost::bind (<C_Slave::parameter_changed, this, _1));
+ parse_timecode_offset();
reset();
resync_latency();
session.Xrun.connect_same_thread (port_connections, boost::bind (<C_Slave::resync_xrun, this));
LTC_Slave::~LTC_Slave()
{
port_connections.drop_connections();
+ config_connection.disconnect();
if (did_reset_tc_format) {
session.config.set_timecode_format (saved_tc_format);
ltc_decoder_free(decoder);
}
+void
+LTC_Slave::parse_timecode_offset() {
+ Timecode::Time offset_tc;
+ Timecode::parse_timecode_format(session.config.get_slave_timecode_offset(), offset_tc);
+ offset_tc.rate = session.timecode_frames_per_second();
+ offset_tc.drop = session.timecode_drop_frames();
+ session.timecode_to_sample(offset_tc, timecode_offset, false, false);
+ timecode_negative_offset = offset_tc.negative;
+}
+
+void
+LTC_Slave::parameter_changed (std::string const & p)
+{
+ if (p == "slave-timecode-offset"
+ || p == "timecode-format"
+ ) {
+ parse_timecode_offset();
+ }
+}
+
ARDOUR::framecnt_t
LTC_Slave::resolution () const
{
if (!session.deletion_in_progress() && session.ltc_output_io()) { /* check if Port exits */
boost::shared_ptr<Port> ltcport = session.ltc_input_port();
- ltcport->get_connected_latency_range(ltc_slave_latency, false);
+ ltcport->get_connected_latency_range (ltc_slave_latency, false);
}
}
}
void
-LTC_Slave::parse_ltc(const jack_nframes_t nframes, const jack_default_audio_sample_t * const in, const framecnt_t posinfo)
+LTC_Slave::parse_ltc(const ARDOUR::pframes_t nframes, const Sample* const in, const ARDOUR::framecnt_t posinfo)
{
- jack_nframes_t i;
+ pframes_t i;
unsigned char sound[8192];
if (nframes > 8192) {
/* TODO warn once or wrap, loop conversion below
}
if (frame->reverse) {
- ltc_frame_decrement(&prev_frame.ltc, fps , 0);
+ ltc_frame_decrement(&prev_frame.ltc, fps, LTC_TV_525_60, 0);
} else {
- ltc_frame_increment(&prev_frame.ltc, fps , 0);
+ ltc_frame_increment(&prev_frame.ltc, fps, LTC_TV_525_60, 0);
}
if (!equal_ltc_frame_time(&prev_frame.ltc, &frame->ltc)) {
discontinuity_detected = true;
}
void
-LTC_Slave::process_ltc(framepos_t const now)
+LTC_Slave::process_ltc(framepos_t const /*now*/)
{
LTCFrameExt frame;
+ enum LTC_TV_STANDARD tv_standard = LTC_TV_625_50;
while (ltc_decoder_read(decoder, &frame)) {
SMPTETimecode stime;
* is expected to start at the end of the current frame
*/
int fps_i = ceil(timecode.rate);
+
+ switch(fps_i) {
+ case 30:
+ if (timecode.drop) {
+ tv_standard = LTC_TV_525_60;
+ } else {
+ tv_standard = LTC_TV_1125_60;
+ }
+ break;
+ case 25:
+ tv_standard = LTC_TV_625_50;
+ break;
+ default:
+ tv_standard = LTC_TV_FILM_24; /* == LTC_TV_1125_60 == no offset, 24,30fps BGF */
+ break;
+ }
+
if (!frame.reverse) {
- ltc_frame_increment(&frame.ltc, fps_i , 0);
+ ltc_frame_increment(&frame.ltc, fps_i, tv_standard, 0);
ltc_frame_to_time(&stime, &frame.ltc, 0);
transport_direction = 1;
+ frame.off_start -= ltc_frame_alignment(session.frames_per_timecode_frame(), tv_standard);
+ frame.off_end -= ltc_frame_alignment(session.frames_per_timecode_frame(), tv_standard);
} else {
- ltc_frame_decrement(&frame.ltc, fps_i , 0);
+ ltc_frame_decrement(&frame.ltc, fps_i, tv_standard, 0);
int off = frame.off_end - frame.off_start;
- frame.off_start += off;
- frame.off_end += off;
+ frame.off_start += off - ltc_frame_alignment(session.frames_per_timecode_frame(), tv_standard);
+ frame.off_end += off - ltc_frame_alignment(session.frames_per_timecode_frame(), tv_standard);
transport_direction = -1;
}
/* map LTC timecode to session TC setting */
framepos_t ltc_frame; ///< audio-frame corresponding to LTC frame
- Timecode::timecode_to_sample (timecode, ltc_frame, false, false,
+ Timecode::timecode_to_sample (timecode, ltc_frame, true, false,
double(session.frame_rate()),
session.config.get_subframes_per_frame(),
- session.config.get_timecode_offset_negative(), session.config.get_timecode_offset()
+ timecode_negative_offset, timecode_offset
);
framepos_t cur_timestamp = frame.off_end + 1;
}
/* main entry point from session_process.cc
- * called from jack_process callback context
- * so it is OK to use jack_port_get_buffer()
+ * called from process callback context
+ * so it is OK to use get_buffer()
*/
bool
LTC_Slave::speed_and_position (double& speed, framepos_t& pos)
{
bool engine_init_called = false;
- framepos_t now = session.engine().frame_time_at_cycle_start();
+ framepos_t now = session.engine().sample_time_at_cycle_start();
framepos_t sess_pos = session.transport_frame(); // corresponds to now
- framecnt_t nframes = session.engine().frames_per_cycle();
+ framecnt_t nframes = session.engine().samples_per_cycle();
- jack_default_audio_sample_t *in;
+ Sample* in;
boost::shared_ptr<Port> ltcport = session.ltc_input_port();
- in = (jack_default_audio_sample_t*) jack_port_get_buffer (ltcport->jack_port(), nframes);
+ in = (Sample*) AudioEngine::instance()->port_engine().get_buffer (ltcport->port_handle(), nframes);
frameoffset_t skip = now - (monotonic_cnt + nframes);
monotonic_cnt = now;
- DEBUG_TRACE (DEBUG::LTC, string_compose ("speed_and_position - TID:%1 | latency: %2 | skip %3\n", ::pthread_self(), ltc_slave_latency.max, skip));
+ DEBUG_TRACE (DEBUG::LTC, string_compose ("speed_and_position - TID:%1 | latency: %2 | skip %3\n", pthread_name(), ltc_slave_latency.max, skip));
if (last_timestamp == 0) {
engine_dll_initstate = 0;
else if (engine_dll_initstate != transport_direction && ltc_speed != 0) {
engine_dll_initstate = transport_direction;
init_engine_dll(last_ltc_frame + rint(ltc_speed * double(2 * nframes + now - last_timestamp)),
- session.engine().frames_per_cycle());
+ session.engine().samples_per_cycle());
engine_init_called = true;
}
t0 = t1;
t1 += b * e + e2;
e2 += c * e;
- speed_flt = (t1 - t0) / double(session.engine().frames_per_cycle());
- DEBUG_TRACE (DEBUG::LTC, string_compose ("LTC engine DLL t0:%1 t1:%2 err:%3 spd:%4 ddt:%5\n", t0, t1, e, speed_flt, e2 - session.engine().frames_per_cycle() ));
+ speed_flt = (t1 - t0) / double(session.engine().samples_per_cycle());
+ DEBUG_TRACE (DEBUG::LTC, string_compose ("LTC engine DLL t0:%1 t1:%2 err:%3 spd:%4 ddt:%5\n", t0, t1, e, speed_flt, e2 - session.engine().samples_per_cycle() ));
} else {
DEBUG_TRACE (DEBUG::LTC, string_compose ("LTC adjusting elapsed (no DLL) from %1 by %2\n", elapsed, (2 * nframes * ltc_speed)));
speed_flt = 0;
std::string
LTC_Slave::approximate_current_delta() const
{
- char delta[24];
+ char delta[80];
if (last_timestamp == 0 || engine_dll_initstate == 0) {
snprintf(delta, sizeof(delta), "\u2012\u2012\u2012\u2012");
} else if ((monotonic_cnt - last_timestamp) > 2 * frames_per_ltc_frame) {
- snprintf(delta, sizeof(delta), "flywheel");
+ snprintf(delta, sizeof(delta), "%s", _("flywheel"));
} else {
- snprintf(delta, sizeof(delta), "%s%4" PRIi64 " sm",
- PLUSMINUS(-current_delta), abs(current_delta));
+ snprintf(delta, sizeof(delta), "\u0394<span foreground=\"green\" face=\"monospace\" >%s%s%" PRIi64 "</span>sm",
+ LEADINGZERO(llabs(current_delta)), PLUSMINUS(-current_delta), llabs(current_delta));
}
return std::string(delta);
}
projects / ardour.git / blobdiff