X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fltc_slave.cc;h=8d08fd6bb5ab9184e77ba559d65ed6843af0bf7a;hb=985e3dcc50fc7dd66a258ae0758956a1fff8f3bd;hp=ea40fea654265380e6e3fe78a3ce860a297ee68b;hpb=a3a398242bbb1149611ba03a8ee717e9af07de75;p=ardour.git diff --git a/libs/ardour/ltc_slave.cc b/libs/ardour/ltc_slave.cc index ea40fea654..8d08fd6bb5 100644 --- a/libs/ardour/ltc_slave.cc +++ b/libs/ardour/ltc_slave.cc @@ -53,13 +53,16 @@ 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(); resync_latency(); session.Xrun.connect_same_thread (port_connections, boost::bind (<C_Slave::resync_xrun, this)); @@ -69,6 +72,7 @@ LTC_Slave::LTC_Slave (Session& s) LTC_Slave::~LTC_Slave() { port_connections.drop_connections(); + config_connection.disconnect(); if (did_reset_tc_format) { session.config.set_timecode_format (saved_tc_format); @@ -77,6 +81,26 @@ 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 { @@ -108,7 +132,7 @@ LTC_Slave::resync_latency() DEBUG_TRACE (DEBUG::LTC, "LTC resync_latency()\n"); engine_dll_initstate = 0; - if (session.ltc_output_io()) { /* check if Port exits */ + 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); } @@ -175,9 +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; @@ -198,22 +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; } @@ -231,6 +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) { @@ -238,10 +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 { @@ -250,10 +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; } } @@ -264,9 +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; @@ -306,15 +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; } @@ -328,7 +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; @@ -510,9 +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) @@ -534,14 +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(abs(current_delta)), PLUSMINUS(-current_delta), abs(current_delta)); } return std::string(delta); }