X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fltc_slave.cc;h=04af930f0ea2d32626f75e59733af14aa560b29a;hb=3d183dc462a82c5ee0b4fb77a226f0e49d9736f7;hp=99dad70c9442c533c22aaf6a9ae832d874e82b2c;hpb=e6521bb0434d88802aa28e75235bc8c19ebb9262;p=ardour.git diff --git a/libs/ardour/ltc_slave.cc b/libs/ardour/ltc_slave.cc index 99dad70c94..04af930f0e 100644 --- a/libs/ardour/ltc_slave.cc +++ b/libs/ardour/ltc_slave.cc @@ -19,19 +19,20 @@ */ #include #include -#include #include #include #include "pbd/error.h" +#include "pbd/pthread_utils.h" #include "ardour/debug.h" +#include "ardour/profile.h" #include "ardour/slave.h" #include "ardour/session.h" #include "ardour/audioengine.h" #include "ardour/audio_port.h" -#include "i18n.h" +#include "pbd/i18n.h" using namespace std; using namespace ARDOUR; @@ -44,7 +45,7 @@ using namespace Timecode; LTC_Slave::LTC_Slave (Session& s) : session (s) { - frames_per_ltc_frame = session.frames_per_timecode_frame(); + frames_per_ltc_frame = session.samples_per_timecode_frame(); timecode.rate = session.timecode_frames_per_second(); timecode.drop = session.timecode_drop_frames(); @@ -52,6 +53,7 @@ LTC_Slave::LTC_Slave (Session& s) delayedlocked = 10; monotonic_cnt = 0; fps_detected=false; + sync_lock_broken = false; ltc_timecode = session.config.get_timecode_format(); a3e_timecode = session.config.get_timecode_format(); @@ -124,6 +126,7 @@ LTC_Slave::resync_xrun() { DEBUG_TRACE (DEBUG::LTC, "LTC resync_xrun()\n"); engine_dll_initstate = 0; + sync_lock_broken = false; } void @@ -131,28 +134,34 @@ LTC_Slave::resync_latency() { DEBUG_TRACE (DEBUG::LTC, "LTC resync_latency()\n"); engine_dll_initstate = 0; + sync_lock_broken = false; if (!session.deletion_in_progress() && session.ltc_output_io()) { /* check if Port exits */ boost::shared_ptr 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::reset() +LTC_Slave::reset (bool with_ts) { DEBUG_TRACE (DEBUG::LTC, "LTC reset()\n"); - last_timestamp = 0; - current_delta = 0; + if (with_ts) { + last_timestamp = 0; + current_delta = 0; + } transport_direction = 0; ltc_speed = 0; engine_dll_initstate = 0; + sync_lock_broken = false; + + ActiveChanged (false); /* EMIT SIGNAL */ } 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 @@ -358,13 +367,13 @@ LTC_Slave::process_ltc(framepos_t const /*now*/) 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); + frame.off_start -= ltc_frame_alignment(session.samples_per_timecode_frame(), tv_standard); + frame.off_end -= ltc_frame_alignment(session.samples_per_timecode_frame(), tv_standard); } else { ltc_frame_decrement(&frame.ltc, fps_i, tv_standard, 0); int off = frame.off_end - frame.off_start; - 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); + frame.off_start += off - ltc_frame_alignment(session.samples_per_timecode_frame(), tv_standard); + frame.off_end += off - ltc_frame_alignment(session.samples_per_timecode_frame(), tv_standard); transport_direction = -1; } @@ -381,6 +390,8 @@ LTC_Slave::process_ltc(framepos_t const /*now*/) timecode_negative_offset, timecode_offset ); + ltc_frame += ltc_slave_latency.max + session.worst_playback_latency(); + framepos_t cur_timestamp = frame.off_end + 1; DEBUG_TRACE (DEBUG::LTC, string_compose ("LTC F: %1 LF: %2 N: %3 L: %4\n", ltc_frame, last_ltc_frame, cur_timestamp, last_timestamp)); if (frame.off_end + 1 <= last_timestamp || last_timestamp == 0) { @@ -413,35 +424,37 @@ LTC_Slave::init_engine_dll (framepos_t pos, int32_t inc) } /* 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 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; - delayedlocked++; - } - else if (engine_dll_initstate != transport_direction && ltc_speed != 0) { + if (delayedlocked < 10) ++delayedlocked; + } else if (engine_dll_initstate != transport_direction && ltc_speed != 0) { + + ActiveChanged (true); /* EMIT SIGNAL */ + 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; } @@ -455,7 +468,7 @@ LTC_Slave::speed_and_position (double& speed, framepos_t& pos) DEBUG_TRACE (DEBUG::LTC, string_compose("engine skipped %1 frames. Feeding silence to LTC parser.\n", skip)); if (skip >= 8192) skip = 8192; unsigned char sound[8192]; - memset(sound, 0, sizeof(char) * skip); + memset(sound, 0x80, sizeof(char) * skip); ltc_decoder_write(decoder, sound, nframes, now); } else if (skip != 0) { /* this should never happen. it may if monotonic_cnt, now overflow on 64bit */ @@ -463,7 +476,7 @@ LTC_Slave::speed_and_position (double& speed, framepos_t& pos) reset(); } - parse_ltc(nframes, in, now - ltc_slave_latency.max ); + parse_ltc(nframes, in, now); process_ltc(now); } @@ -473,7 +486,8 @@ LTC_Slave::speed_and_position (double& speed, framepos_t& pos) pos = session.transport_frame(); return true; } else if (ltc_speed != 0) { - delayedlocked = 0; + if (delayedlocked > 1) delayedlocked--; + else if (current_delta == 0) delayedlocked = 0; } if (abs(now - last_timestamp) > FLYWHEEL_TIMEOUT) { @@ -481,6 +495,7 @@ LTC_Slave::speed_and_position (double& speed, framepos_t& pos) reset(); speed = 0; pos = session.transport_frame(); + ActiveChanged (false); /* EMIT SIGNAL */ return true; } @@ -521,8 +536,8 @@ LTC_Slave::speed_and_position (double& speed, framepos_t& pos) 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; @@ -535,9 +550,8 @@ LTC_Slave::speed_and_position (double& speed, framepos_t& pos) if (((pos < 0) || (labs(current_delta) > 2 * session.frame_rate()))) { DEBUG_TRACE (DEBUG::LTC, string_compose ("LTC large drift: %1\n", current_delta)); - reset(); + reset(false); speed = 0; - pos = session.transport_frame(); return true; } @@ -549,6 +563,11 @@ LTC_Slave::speed_and_position (double& speed, framepos_t& pos) speed = 1.0; } + if (speed != 0 && delayedlocked == 0 && fabs(speed) != 1.0) { + sync_lock_broken = true; + DEBUG_TRACE (DEBUG::LTC, string_compose ("LTC speed not locked %1 %2\n", speed, ltc_speed)); + } + return true; } @@ -590,8 +609,9 @@ LTC_Slave::approximate_current_delta() const } else if ((monotonic_cnt - last_timestamp) > 2 * frames_per_ltc_frame) { snprintf(delta, sizeof(delta), "%s", _("flywheel")); } else { - snprintf(delta, sizeof(delta), "\u0394%s%s%" PRIi64 "sm", - LEADINGZERO(abs(current_delta)), PLUSMINUS(-current_delta), abs(current_delta)); + snprintf(delta, sizeof(delta), "\u0394%s%s%lldsm", + sync_lock_broken ? "red" : "green", + LEADINGZERO(::llabs(current_delta)), PLUSMINUS(-current_delta), ::llabs(current_delta)); } return std::string(delta); }