X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fsession_time.cc;h=eef05e879a0f41cbb2534f8b022dca74639d5658;hb=02c498a8fa1c2e47988a256321bdcf5e9e869de1;hp=0f783ab9435bc7314a8861b33042b0d2edfa5b20;hpb=c1e584256584a7e8b33512b41060258a795b0c0e;p=ardour.git diff --git a/libs/ardour/session_time.cc b/libs/ardour/session_time.cc index 0f783ab943..eef05e879a 100644 --- a/libs/ardour/session_time.cc +++ b/libs/ardour/session_time.cc @@ -1,6 +1,6 @@ /* - Copyright (C) 1999-2002 Paul Davis + Copyright (C) 1999-2002 Paul Davis This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -16,119 +16,181 @@ along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - $Id$ */ +#ifdef WAF_BUILD +#include "libardour-config.h" +#endif + #include #include #include -#include +#include "ardour/timestamps.h" -#include +#include "pbd/error.h" +#include "pbd/enumwriter.h" +#include "pbd/stacktrace.h" -#include -#include -#include -#include -#include +#include "ardour/ardour.h" +#include "ardour/configuration.h" +#include "ardour/audioengine.h" +#include "ardour/session.h" +#include "ardour/tempo.h" #include "i18n.h" +using namespace std; using namespace ARDOUR; using namespace PBD; /* BBT TIME*/ void -Session::bbt_time (jack_nframes_t when, BBT_Time& bbt) +Session::bbt_time (framepos_t when, Timecode::BBT_Time& bbt) { _tempo_map->bbt_time (when, bbt); } -/* SMPTE TIME */ - -void -Session::sync_time_vars () +/* Timecode TIME */ +float +Session::timecode_frames_per_second() const { - _current_frame_rate = _base_frame_rate * (1.0 + (video_pullup/100.0) ); - _frames_per_hour = _current_frame_rate * 3600; - _frames_per_smpte_frame = (double) _current_frame_rate / (double) smpte_frames_per_second; - _smpte_frames_per_hour = (unsigned long) (smpte_frames_per_second * 3600.0); -} + switch (config.get_timecode_format()) { + case timecode_23976: + return 23.976; -int -Session::set_smpte_type (float fps, bool drop_frames) -{ - smpte_frames_per_second = fps; - smpte_drop_frames = drop_frames; + break; + case timecode_24: + return 24; - last_smpte_valid = false; - // smpte type bits are the middle two in the upper nibble - switch ((int) ceil (fps)) { - case 24: - mtc_smpte_bits = 0; - break; + break; + case timecode_24976: + return 24.976; - case 25: - mtc_smpte_bits = 0x20; - break; + break; + case timecode_25: + return 25; - case 30: - default: - if (drop_frames) { - mtc_smpte_bits = 0x40; - } else { - mtc_smpte_bits = 0x60; - } - break; - }; + break; + case timecode_2997: + return 29.97; - sync_time_vars(); + break; + case timecode_2997drop: + return 29.97; - SMPTETypeChanged (); /* EMIT SIGNAL */ + break; + case timecode_30: + return 30; - set_dirty(); + break; + case timecode_30drop: + return 30; - return 0; -} + break; + case timecode_5994: + return 59.94; -int -Session::set_video_pullup (float pull) + break; + case timecode_60: + return 60; + + break; + default: + cerr << "Editor received unexpected timecode type" << endl; + } + return 30.0; +} +bool +Session::timecode_drop_frames() const { - video_pullup = pull; + switch (config.get_timecode_format()) { + case timecode_23976: + return false; - sync_time_vars(); + break; + case timecode_24: + return false; - PullupChanged (); /* EMIT SIGNAL */ + break; + case timecode_24976: + return false; - set_dirty(); + break; + case timecode_25: + return false; - return 0; -} + break; + case timecode_2997: + return false; -void -Session::set_smpte_offset (jack_nframes_t off) -{ - _smpte_offset = off; - last_smpte_valid = false; + break; + case timecode_2997drop: + return true; - SMPTEOffsetChanged (); /* EMIT SIGNAL */ -} + break; + case timecode_30: + return false; + + break; + case timecode_30drop: + return true; + + break; + case timecode_5994: + return false; + + break; + case timecode_60: + return false; + break; + default: + error << "Editor received unexpected timecode type" << endmsg; + } + + return false; +} void -Session::set_smpte_offset_negative (bool neg) +Session::sync_time_vars () { - _smpte_offset_negative = neg; - last_smpte_valid = false; + _current_frame_rate = (framecnt_t) round (_base_frame_rate * (1.0 + (config.get_video_pullup()/100.0))); + _frames_per_timecode_frame = (double) _current_frame_rate / (double) timecode_frames_per_second(); + if (timecode_drop_frames()) { + _frames_per_hour = (int32_t)(107892 * _frames_per_timecode_frame); + } else { + _frames_per_hour = (int32_t)(3600 * rint(timecode_frames_per_second()) * _frames_per_timecode_frame); + } + _timecode_frames_per_hour = rint(timecode_frames_per_second() * 3600.0); - SMPTEOffsetChanged (); /* EMIT SIGNAL */ + last_timecode_valid = false; + // timecode type bits are the middle two in the upper nibble + switch ((int) ceil (timecode_frames_per_second())) { + case 24: + mtc_timecode_bits = 0; + break; + + case 25: + mtc_timecode_bits = 0x20; + break; + + case 30: + default: + if (timecode_drop_frames()) { + mtc_timecode_bits = 0x40; + } else { + mtc_timecode_bits = 0x60; + } + break; + }; } void -Session::smpte_to_sample( SMPTE::Time& smpte, jack_nframes_t& sample, bool use_offset, bool use_subframes ) const +Session::timecode_to_sample( Timecode::Time& timecode, framepos_t& sample, bool use_offset, bool use_subframes ) const { - if (smpte_drop_frames) { + + if (timecode.drop) { // The drop frame format was created to better approximate the 30000/1001 = 29.97002997002997.... // framerate of NTSC color TV. The used frame rate of drop frame is 29.97, which drifts by about // 0.108 frame per hour, or about 1.3 frames per 12 hours. This is not perfect, but a lot better @@ -140,10 +202,10 @@ Session::smpte_to_sample( SMPTE::Time& smpte, jack_nframes_t& sample, bool use_o // approx. 0.2 frames too early. This adds up with 0.2 too early for each minute until we are 1.8 // frames too early at 0:9:0:2 (9 * 0.2 = 1.8). The 10th minute brings us 1.8 frames later again // (at end of 0:9:59:29), which sums up to 0 (we are back to zero at 0:10:0:0 :-). - // + // // In table form: - // - // SMPTE value frames offset subframes offset seconds (rounded) 44100 sample (rounded) + // + // Timecode value frames offset subframes offset seconds (rounded) 44100 sample (rounded) // 0:00:00:00 0.0 0 0.000 0 (accurate) // 0:00:59:29 1.8 144 60.027 2647177 // 0:01:00:02 -0.2 -16 60.060 2648648 @@ -167,191 +229,202 @@ Session::smpte_to_sample( SMPTE::Time& smpte, jack_nframes_t& sample, bool use_o // 0:10:00:00 0.0 0 600.000 26460000 (accurate) // // Per Sigmond - + // Samples inside time dividable by 10 minutes (real time accurate) - jack_nframes_t base_samples = ((smpte.hours * 60 * 60) + ((smpte.minutes / 10) * 10 * 60)) * frame_rate(); + framecnt_t base_samples = (framecnt_t) (((timecode.hours * 107892) + ((timecode.minutes / 10) * 17982)) * _frames_per_timecode_frame); + // Samples inside time exceeding the nearest 10 minutes (always offset, see above) - long exceeding_df_minutes = smpte.minutes % 10; - long exceeding_df_seconds = (exceeding_df_minutes * 60) + smpte.seconds; - long exceeding_df_frames = (30 * exceeding_df_seconds) + smpte.frames - (2 * exceeding_df_minutes); - jack_nframes_t exceeding_samples = (jack_nframes_t) rint(exceeding_df_frames * _frames_per_smpte_frame); + int32_t exceeding_df_minutes = timecode.minutes % 10; + int32_t exceeding_df_seconds = (exceeding_df_minutes * 60) + timecode.seconds; + int32_t exceeding_df_frames = (30 * exceeding_df_seconds) + timecode.frames - (2 * exceeding_df_minutes); + framecnt_t exceeding_samples = (framecnt_t) rint(exceeding_df_frames * _frames_per_timecode_frame); sample = base_samples + exceeding_samples; } else { - // Non drop is easy: - sample = (((smpte.hours * 60 * 60) + (smpte.minutes * 60) + smpte.seconds) * frame_rate()) + (jack_nframes_t)rint(smpte.frames * _frames_per_smpte_frame); + /* + Non drop is easy.. just note the use of + rint(timecode.rate) * _frames_per_timecode_frame + (frames per Timecode second), which is larger than + frame_rate() in the non-integer Timecode rate case. + */ + + sample = (framecnt_t)rint((((timecode.hours * 60 * 60) + (timecode.minutes * 60) + timecode.seconds) * (rint(timecode.rate) * _frames_per_timecode_frame)) + (timecode.frames * _frames_per_timecode_frame)); } - + if (use_subframes) { - sample += (long) (((double)smpte.subframes * _frames_per_smpte_frame) / 80.0); + sample += (int32_t) (((double)timecode.subframes * _frames_per_timecode_frame) / config.get_subframes_per_frame()); } - + if (use_offset) { - if (smpte_offset_negative()) { - if (sample >= smpte_offset()) { - sample -= smpte_offset(); + if (config.get_timecode_offset_negative()) { + if (sample >= config.get_timecode_offset()) { + sample -= config.get_timecode_offset(); } else { /* Prevent song-time from becoming negative */ sample = 0; } } else { - if (smpte.negative) { - if (sample <= smpte_offset()) { - sample = smpte_offset() - sample; + if (timecode.negative) { + if (sample <= config.get_timecode_offset()) { + sample = config.get_timecode_offset() - sample; } else { sample = 0; } } else { - sample += smpte_offset(); + sample += config.get_timecode_offset(); } } } + } void -Session::sample_to_smpte( jack_nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const +Session::sample_to_timecode (framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes ) const { - jack_nframes_t offset_sample; + framepos_t offset_sample; if (!use_offset) { offset_sample = sample; - smpte.negative = false; + timecode.negative = false; } else { - if (_smpte_offset_negative) { - offset_sample = sample + _smpte_offset; - smpte.negative = false; + if (config.get_timecode_offset_negative()) { + offset_sample = sample + config.get_timecode_offset (); + timecode.negative = false; } else { - if (sample < _smpte_offset) { - offset_sample = (_smpte_offset - sample); - smpte.negative = true; + if (sample < config.get_timecode_offset()) { + offset_sample = (config.get_timecode_offset() - sample); + timecode.negative = true; } else { - offset_sample = sample - _smpte_offset; - smpte.negative = false; + offset_sample = sample - config.get_timecode_offset(); + timecode.negative = false; } } } - - double smpte_frames_left_exact; - double smpte_frames_fraction; - unsigned long smpte_frames_left; - + + double timecode_frames_left_exact; + double timecode_frames_fraction; + uint32_t timecode_frames_left; + // Extract whole hours. Do this to prevent rounding errors with // high sample numbers in the calculations that follow. - smpte.hours = offset_sample / _frames_per_hour; + timecode.hours = offset_sample / _frames_per_hour; offset_sample = offset_sample % _frames_per_hour; - - // Calculate exact number of (exceeding) smpte frames and fractional frames - smpte_frames_left_exact = (double) offset_sample / _frames_per_smpte_frame; - smpte_frames_fraction = smpte_frames_left_exact - floor( smpte_frames_left_exact ); - smpte.subframes = (long) rint(smpte_frames_fraction * 80.0); - + + // Calculate exact number of (exceeding) timecode frames and fractional frames + timecode_frames_left_exact = (double) offset_sample / _frames_per_timecode_frame; + timecode_frames_fraction = timecode_frames_left_exact - floor( timecode_frames_left_exact ); + timecode.subframes = (int32_t) rint(timecode_frames_fraction * config.get_subframes_per_frame()); + // XXX Not sure if this is necessary anymore... - if (smpte.subframes == 80) { + if (timecode.subframes == config.get_subframes_per_frame()) { // This can happen with 24 fps (and 29.97 fps ?) - smpte_frames_left_exact = ceil( smpte_frames_left_exact ); - smpte.subframes = 0; + timecode_frames_left_exact = ceil( timecode_frames_left_exact ); + timecode.subframes = 0; } // Extract hour-exceeding frames for minute, second and frame calculations - smpte_frames_left = ((long) floor( smpte_frames_left_exact )); + timecode_frames_left = (uint32_t) floor (timecode_frames_left_exact); - if (smpte_drop_frames) { - // See long explanation in smpte_to_sample()... + if (timecode_drop_frames()) { + // See int32_t explanation in timecode_to_sample()... // Number of 10 minute chunks - smpte.minutes = (smpte_frames_left / 17982) * 10; // exactly 17982 frames in 10 minutes + timecode.minutes = (timecode_frames_left / 17982) * 10; // exactly 17982 frames in 10 minutes // frames exceeding the nearest 10 minute barrier - long exceeding_df_frames = smpte_frames_left % 17982; + int32_t exceeding_df_frames = timecode_frames_left % 17982; // Find minutes exceeding the nearest 10 minute barrier if (exceeding_df_frames >= 1800) { // nothing to do if we are inside the first minute (0-1799) exceeding_df_frames -= 1800; // take away first minute (different number of frames than the others) - long extra_minutes_minus_1 = exceeding_df_frames / 1798; // how many minutes after the first one + int32_t extra_minutes_minus_1 = exceeding_df_frames / 1798; // how many minutes after the first one exceeding_df_frames -= extra_minutes_minus_1 * 1798; // take away the (extra) minutes just found - smpte.minutes += extra_minutes_minus_1 + 1; // update with exceeding minutes + timecode.minutes += extra_minutes_minus_1 + 1; // update with exceeding minutes } - + // Adjust frame numbering for dropped frames (frame 0 and 1 skipped at start of every minute except every 10th) - if (smpte.minutes % 10) { + if (timecode.minutes % 10) { // Every minute except every 10th if (exceeding_df_frames < 28) { // First second, frames 0 and 1 are skipped - smpte.seconds = 0; - smpte.frames = exceeding_df_frames + 2; + timecode.seconds = 0; + timecode.frames = exceeding_df_frames + 2; } else { // All other seconds, all 30 frames are counted exceeding_df_frames -= 28; - smpte.seconds = (exceeding_df_frames / 30) + 1; - smpte.frames = exceeding_df_frames % 30; + timecode.seconds = (exceeding_df_frames / 30) + 1; + timecode.frames = exceeding_df_frames % 30; } } else { // Every 10th minute, all 30 frames counted in all seconds - smpte.seconds = exceeding_df_frames / 30; - smpte.frames = exceeding_df_frames % 30; + timecode.seconds = exceeding_df_frames / 30; + timecode.frames = exceeding_df_frames % 30; } } else { // Non drop is easy - smpte.minutes = smpte_frames_left / ((long) smpte_frames_per_second * 60); - smpte_frames_left = smpte_frames_left % ((long) smpte_frames_per_second * 60); - smpte.seconds = smpte_frames_left / (long) smpte_frames_per_second; - smpte.frames = smpte_frames_left % (long) smpte_frames_per_second; + timecode.minutes = timecode_frames_left / ((int32_t) rint (timecode_frames_per_second ()) * 60); + timecode_frames_left = timecode_frames_left % ((int32_t) rint (timecode_frames_per_second ()) * 60); + timecode.seconds = timecode_frames_left / (int32_t) rint(timecode_frames_per_second ()); + timecode.frames = timecode_frames_left % (int32_t) rint(timecode_frames_per_second ()); } if (!use_subframes) { - smpte.subframes = 0; + timecode.subframes = 0; } + /* set frame rate and drop frame */ + timecode.rate = timecode_frames_per_second (); + timecode.drop = timecode_drop_frames(); } void -Session::smpte_time (jack_nframes_t when, SMPTE::Time& smpte) +Session::timecode_time (framepos_t when, Timecode::Time& timecode) { - if (last_smpte_valid && when == last_smpte_when) { - smpte = last_smpte; + if (last_timecode_valid && when == last_timecode_when) { + timecode = last_timecode; return; } - sample_to_smpte( when, smpte, true /* use_offset */, false /* use_subframes */ ); + sample_to_timecode( when, timecode, true /* use_offset */, false /* use_subframes */ ); - last_smpte_when = when; - last_smpte = smpte; - last_smpte_valid = true; + last_timecode_when = when; + last_timecode = timecode; + last_timecode_valid = true; } void -Session::smpte_time_subframes (jack_nframes_t when, SMPTE::Time& smpte) +Session::timecode_time_subframes (framepos_t when, Timecode::Time& timecode) { - if (last_smpte_valid && when == last_smpte_when) { - smpte = last_smpte; + if (last_timecode_valid && when == last_timecode_when) { + timecode = last_timecode; return; } - - sample_to_smpte( when, smpte, true /* use_offset */, true /* use_subframes */ ); - last_smpte_when = when; - last_smpte = smpte; - last_smpte_valid = true; + sample_to_timecode( when, timecode, true /* use_offset */, true /* use_subframes */ ); + + last_timecode_when = when; + last_timecode = timecode; + last_timecode_valid = true; } void -Session::smpte_duration (jack_nframes_t when, SMPTE::Time& smpte) const +Session::timecode_duration (framecnt_t when, Timecode::Time& timecode) const { - sample_to_smpte( when, smpte, false /* use_offset */, true /* use_subframes */ ); + sample_to_timecode( when, timecode, false /* use_offset */, true /* use_subframes */ ); } void -Session::smpte_duration_string (char* buf, jack_nframes_t when) const +Session::timecode_duration_string (char* buf, framepos_t when) const { - SMPTE::Time smpte; + Timecode::Time timecode; - smpte_duration (when, smpte); - snprintf (buf, sizeof (buf), "%02" PRIu32 ":%02" PRIu32 ":%02" PRIu32 ":%02" PRIu32, smpte.hours, smpte.minutes, smpte.seconds, smpte.frames); + timecode_duration (when, timecode); + snprintf (buf, sizeof (buf), "%02" PRIu32 ":%02" PRIu32 ":%02" PRIu32 ":%02" PRIu32, timecode.hours, timecode.minutes, timecode.seconds, timecode.frames); } void -Session::smpte_time (SMPTE::Time &t) +Session::timecode_time (Timecode::Time &t) { - smpte_time (_transport_frame, t); + timecode_time (_transport_frame, t); } int @@ -362,18 +435,18 @@ Session::jack_sync_callback (jack_transport_state_t state, switch (state) { case JackTransportStopped: - if (slave && _transport_frame != pos->frame && post_transport_work == 0) { - request_locate (pos->frame, false); + if (slave && _transport_frame != pos->frame && post_transport_work() == 0) { + request_locate (pos->frame, false); // cerr << "SYNC: stopped, locate to " << pos->frame << " from " << _transport_frame << endl; return false; } else { return true; } - + case JackTransportStarting: - // cerr << "SYNC: starting @ " << pos->frame << " a@ " << _transport_frame << " our work = " << post_transport_work << " pos matches ? " << (_transport_frame == pos->frame) << endl; + // cerr << "SYNC: starting @ " << pos->frame << " a@ " << _transport_frame << " our work = " << post_transport_work() << " pos matches ? " << (_transport_frame == pos->frame) << endl; if (slave) { - return _transport_frame == pos->frame && post_transport_work == 0; + return _transport_frame == pos->frame && post_transport_work() == 0; } else { return true; } @@ -389,60 +462,66 @@ Session::jack_sync_callback (jack_transport_state_t state, default: error << string_compose (_("Unknown JACK transport state %1 in sync callback"), state) << endmsg; - } + } return true; } void -Session::jack_timebase_callback (jack_transport_state_t state, - jack_nframes_t nframes, +Session::jack_timebase_callback (jack_transport_state_t /*state*/, + pframes_t /*nframes*/, jack_position_t* pos, - int new_position) + int /*new_position*/) { - BBT_Time bbt; - - /* frame info */ + Timecode::BBT_Time bbt; - pos->frame = _transport_frame; - pos->valid = JackPositionTimecode; + if (pos->frame != _transport_frame) { + cerr << "ARDOUR says " << _transport_frame << " JACK says " << pos->frame << endl; + } /* BBT info */ - - if (_tempo_map) { - - TempoMap::Metric metric (_tempo_map->metric_at (_transport_frame)); - _tempo_map->bbt_time_with_metric (_transport_frame, bbt, metric); - - pos->bar = bbt.bars; - pos->beat = bbt.beats; - pos->tick = bbt.ticks; - - // XXX still need to set bar_start_tick - pos->beats_per_bar = metric.meter().beats_per_bar(); - pos->beat_type = metric.meter().note_divisor(); - pos->ticks_per_beat = Meter::ticks_per_beat; - pos->beats_per_minute = metric.tempo().beats_per_minute(); + if (_tempo_map) { - pos->valid = jack_position_bits_t (pos->valid | JackPositionBBT); + TempoMetric metric (_tempo_map->metric_at (_transport_frame)); + + try { + _tempo_map->bbt_time_rt (_transport_frame, bbt); + + pos->bar = bbt.bars; + pos->beat = bbt.beats; + pos->tick = bbt.ticks; + + // XXX still need to set bar_start_tick + + pos->beats_per_bar = metric.meter().divisions_per_bar(); + pos->beat_type = metric.meter().note_divisor(); + pos->ticks_per_beat = Timecode::BBT_Time::ticks_per_beat; + pos->beats_per_minute = metric.tempo().beats_per_minute(); + + pos->valid = jack_position_bits_t (pos->valid | JackPositionBBT); + + } catch (...) { + /* no message */ + } } #ifdef HAVE_JACK_VIDEO_SUPPORT //poke audio video ratio so Ardour can track Video Sync - pos->audio_frames_per_video_frame = frame_rate() / smpte_frames_per_second; + pos->audio_frames_per_video_frame = frame_rate() / timecode_frames_per_second(); pos->valid = jack_position_bits_t (pos->valid | JackAudioVideoRatio); #endif #if 0 - /* SMPTE info */ + /* Timecode info */ - t.smpte_offset = _smpte_offset; - t.smpte_frame_rate = smpte_frames_per_second; + pos->timecode_offset = config.get_timecode_offset(); + t.timecode_frame_rate = timecode_frames_per_second(); + pos->valid = jack_position_bits_t (pos->valid | JackPositionTimecode; if (_transport_speed) { - if (auto_loop) { + if (play_loop) { Location* location = _locations.auto_loop_location(); @@ -469,45 +548,76 @@ Session::jack_timebase_callback (jack_transport_state_t state, } - } - -#endif + } +#endif } -jack_nframes_t -Session::convert_to_frames_at (jack_nframes_t position, AnyTime& any) +ARDOUR::framecnt_t +Session::convert_to_frames (AnyTime const & position) { double secs; - - switch (any.type) { + + switch (position.type) { case AnyTime::BBT: - return _tempo_map->frame_time ( any.bbt); + return _tempo_map->frame_time (position.bbt); break; - case AnyTime::SMPTE: + case AnyTime::Timecode: /* XXX need to handle negative values */ - secs = any.smpte.hours * 60 * 60; - secs += any.smpte.minutes * 60; - secs += any.smpte.seconds; - secs += any.smpte.frames / smpte_frames_per_second; - if (_smpte_offset_negative) - { - return (jack_nframes_t) floor (secs * frame_rate()) - _smpte_offset; + secs = position.timecode.hours * 60 * 60; + secs += position.timecode.minutes * 60; + secs += position.timecode.seconds; + secs += position.timecode.frames / timecode_frames_per_second(); + if (config.get_timecode_offset_negative()) { + return (framecnt_t) floor (secs * frame_rate()) - config.get_timecode_offset(); + } else { + return (framecnt_t) floor (secs * frame_rate()) + config.get_timecode_offset(); } - else - { - return (jack_nframes_t) floor (secs * frame_rate()) + _smpte_offset; + break; + + case AnyTime::Seconds: + return (framecnt_t) floor (position.seconds * frame_rate()); + break; + + case AnyTime::Frames: + return position.frames; + break; + } + + return position.frames; +} + +ARDOUR::framecnt_t +Session::any_duration_to_frames (framepos_t position, AnyTime const & duration) +{ + double secs; + + switch (duration.type) { + case AnyTime::BBT: + return (framecnt_t) ( _tempo_map->framepos_plus_bbt (position, duration.bbt) - position); + break; + + case AnyTime::Timecode: + /* XXX need to handle negative values */ + secs = duration.timecode.hours * 60 * 60; + secs += duration.timecode.minutes * 60; + secs += duration.timecode.seconds; + secs += duration.timecode.frames / timecode_frames_per_second(); + if (config.get_timecode_offset_negative()) { + return (framecnt_t) floor (secs * frame_rate()) - config.get_timecode_offset(); + } else { + return (framecnt_t) floor (secs * frame_rate()) + config.get_timecode_offset(); } break; case AnyTime::Seconds: - return (jack_nframes_t) floor (any.seconds * frame_rate()); + return (framecnt_t) floor (duration.seconds * frame_rate()); break; case AnyTime::Frames: - return any.frames; + return duration.frames; break; } - return any.frames; + return duration.frames; }