X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fltc_slave.cc;h=2888e7c11454e85da555cb69520eee160981d998;hb=2a6a16f980ff9181b138f7a30aedfbde4426a591;hp=12386eeb18d7a1c780878d0e04d3d8e52f404c0e;hpb=0047b87e3dba286906097d5b15ca73b5b529b0eb;p=ardour.git diff --git a/libs/ardour/ltc_slave.cc b/libs/ardour/ltc_slave.cc index 12386eeb18..2888e7c114 100644 --- a/libs/ardour/ltc_slave.cc +++ b/libs/ardour/ltc_slave.cc @@ -19,11 +19,11 @@ */ #include #include -#include #include #include #include "pbd/error.h" +#include "pbd/pthread_utils.h" #include "ardour/debug.h" #include "ardour/slave.h" @@ -53,21 +53,26 @@ LTC_Slave::LTC_Slave (Session& s) monotonic_cnt = 0; fps_detected=false; - ltc_timecode = timecode_60; // track changes of LTC fps - a3e_timecode = timecode_60; // track changes of Ardour's fps + ltc_timecode = session.config.get_timecode_format(); + a3e_timecode = session.config.get_timecode_format(); printed_timecode_warning = false; ltc_detect_fps_cnt = ltc_detect_fps_max = 0; 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(); - session.Xrun.connect_same_thread (port_connections, boost::bind (<C_Slave::reset, this)); - session.engine().GraphReordered.connect_same_thread (port_connections, boost::bind (<C_Slave::reset, this)); + resync_latency(); + session.Xrun.connect_same_thread (port_connections, boost::bind (<C_Slave::resync_xrun, this)); + session.engine().GraphReordered.connect_same_thread (port_connections, boost::bind (<C_Slave::resync_latency, 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); @@ -76,10 +81,30 @@ LTC_Slave::~LTC_Slave() 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 { - return (framecnt_t) (frames_per_ltc_frame); + return (framecnt_t) (session.frame_rate() / 1000); } bool @@ -94,6 +119,25 @@ LTC_Slave::ok() const return true; } +void +LTC_Slave::resync_xrun() +{ + DEBUG_TRACE (DEBUG::LTC, "LTC resync_xrun()\n"); + engine_dll_initstate = 0; +} + +void +LTC_Slave::resync_latency() +{ + DEBUG_TRACE (DEBUG::LTC, "LTC resync_latency()\n"); + engine_dll_initstate = 0; + + 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); + } +} + void LTC_Slave::reset() { @@ -103,17 +147,12 @@ LTC_Slave::reset() transport_direction = 0; ltc_speed = 0; engine_dll_initstate = 0; - - if (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); - } } 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 @@ -160,9 +199,9 @@ LTC_Slave::detect_discontinuity(LTCFrameExt *frame, int fps, bool fuzzy) { } 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; @@ -183,22 +222,23 @@ LTC_Slave::detect_ltc_fps(int frameno, bool df) } ltc_detect_fps_cnt++; - if (ltc_detect_fps_cnt > 40) - { - if (ltc_detect_fps_cnt > ltc_detect_fps_max - && ( ceil(timecode.rate) != (ltc_detect_fps_max + 1) - || timecode.drop != df - ) - ) - { - DEBUG_TRACE (DEBUG::LTC, string_compose ("LTC detected FPS %1%2", - ltc_detect_fps_max + 1, timecode.drop ? "df" : "")); + if (ltc_detect_fps_cnt > 40) { + if (ltc_detect_fps_cnt > ltc_detect_fps_max) { detected_fps = ltc_detect_fps_max + 1; if (df) { /* LTC df -> indicates fractional framerate */ - detected_fps = detected_fps * 1000.0 / 1001.0; + if (Config->get_timecode_source_2997()) { + detected_fps = detected_fps * 999.0 / 1000.0; + } else { + detected_fps = detected_fps * 1000.0 / 1001.0; + } + } + + if (timecode.rate != detected_fps || timecode.drop != df) { + DEBUG_TRACE (DEBUG::LTC, string_compose ("LTC detected FPS: %1%2\n", detected_fps, df?"df":"ndf")); + } else { + detected_fps = 0; /* no cange */ } - DEBUG_TRACE (DEBUG::LTC, string_compose ("LTC detected FPS: %1%2\n", detected_fps, df?"df":"ndf")); } ltc_detect_fps_cnt = ltc_detect_fps_max = 0; } @@ -216,6 +256,7 @@ LTC_Slave::detect_ltc_fps(int frameno, bool df) /* poll and check session TC */ TimecodeFormat tc_format = apparent_timecode_format(); TimecodeFormat cur_timecode = session.config.get_timecode_format(); + if (Config->get_timecode_sync_frame_rate()) { /* enforce time-code */ if (!did_reset_tc_format) { @@ -223,10 +264,12 @@ LTC_Slave::detect_ltc_fps(int frameno, bool df) did_reset_tc_format = true; } if (cur_timecode != tc_format) { - warning << string_compose(_("Session framerate adjusted from %1 to LTC's %2."), - Timecode::timecode_format_name(cur_timecode), - Timecode::timecode_format_name(tc_format)) - << endmsg; + if (ceil(Timecode::timecode_to_frames_per_second(cur_timecode)) != ceil(Timecode::timecode_to_frames_per_second(tc_format))) { + warning << string_compose(_("Session framerate adjusted from %1 to LTC's %2."), + Timecode::timecode_format_name(cur_timecode), + Timecode::timecode_format_name(tc_format)) + << endmsg; + } session.config.set_timecode_format (tc_format); } } else { @@ -235,10 +278,12 @@ LTC_Slave::detect_ltc_fps(int frameno, bool df) if (a3e_timecode != cur_timecode) printed_timecode_warning = false; if (cur_timecode != tc_format && ! printed_timecode_warning) { - warning << string_compose(_("Session and LTC framerate mismatch: LTC:%1 Session:%2."), - Timecode::timecode_format_name(tc_format), - Timecode::timecode_format_name(cur_timecode)) - << endmsg; + if (ceil(Timecode::timecode_to_frames_per_second(cur_timecode)) != ceil(Timecode::timecode_to_frames_per_second(tc_format))) { + warning << string_compose(_("Session and LTC framerate mismatch: LTC:%1 Session:%2."), + Timecode::timecode_format_name(tc_format), + Timecode::timecode_format_name(cur_timecode)) + << endmsg; + } printed_timecode_warning = true; } } @@ -249,9 +294,10 @@ LTC_Slave::detect_ltc_fps(int frameno, bool df) } 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; @@ -291,15 +337,34 @@ LTC_Slave::process_ltc(framepos_t const now) * 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; } @@ -313,7 +378,7 @@ LTC_Slave::process_ltc(framepos_t const now) 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; @@ -348,36 +413,26 @@ 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(); -#if 1 - /* TODO read layency only on demand -> ::reset() - * this is already prepared. - * - * ..but first fix jack2 issue with re-computing latency - * in the correct order. Until then, querying it in the - * process-callback is the only way to get the current value - */ - ltcport->get_connected_latency_range(ltc_slave_latency, false); -#endif - 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; @@ -386,7 +441,7 @@ LTC_Slave::speed_and_position (double& speed, framepos_t& pos) 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; } @@ -408,7 +463,7 @@ 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 - ltc_slave_latency.max ); process_ltc(now); } @@ -466,8 +521,8 @@ 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; @@ -489,10 +544,10 @@ LTC_Slave::speed_and_position (double& speed, framepos_t& pos) DEBUG_TRACE (DEBUG::LTC, string_compose ("LTCsync spd: %1 pos: %2 | last-pos: %3 elapsed: %4 delta: %5\n", speed, pos, last_ltc_frame, elapsed, current_delta)); -#if 1 /* provide a .1% deadzone to lock the speed */ - if (fabs(speed - 1.0) <= 0.001) + /* provide a .1% deadzone to lock the speed */ + if (fabs(speed - 1.0) <= 0.001) { speed = 1.0; -#endif + } return true; } @@ -505,9 +560,9 @@ LTC_Slave::apparent_timecode_format () const else if (timecode.rate == 25 && !timecode.drop) return timecode_25; else if (rint(timecode.rate * 100) == 2997 && !timecode.drop) - return timecode_2997; + return (Config->get_timecode_source_2997() ? timecode_2997000 : timecode_2997); else if (rint(timecode.rate * 100) == 2997 && timecode.drop) - return timecode_2997drop; + return (Config->get_timecode_source_2997() ? timecode_2997000drop : timecode_2997drop); else if (timecode.rate == 30 && timecode.drop) return timecode_2997drop; // timecode_30drop; // LTC counting to 30 frames w/DF *means* 29.97 df else if (timecode.rate == 30 && !timecode.drop) @@ -529,14 +584,14 @@ LTC_Slave::approximate_current_position() const 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), _("flywheel")); } else { - snprintf(delta, sizeof(delta), "%s%4" PRIi64 " sm", - PLUSMINUS(-current_delta), abs(current_delta)); + snprintf(delta, sizeof(delta), "\u0394%s%s%" PRIi64 "sm", + LEADINGZERO(llabs(current_delta)), PLUSMINUS(-current_delta), llabs(current_delta)); } return std::string(delta); }