diff options
Diffstat (limited to 'libs/ardour/session_ltc.cc')
| -rw-r--r-- | libs/ardour/session_ltc.cc | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/libs/ardour/session_ltc.cc b/libs/ardour/session_ltc.cc index 25ba783fc7..733ca6877e 100644 --- a/libs/ardour/session_ltc.cc +++ b/libs/ardour/session_ltc.cc @@ -63,6 +63,7 @@ Session::ltc_tx_initialize() { ltc_enc_tcformat = config.get_timecode_format(); + ltc_tx_parse_offset(); DEBUG_TRACE (DEBUG::LTC, string_compose("LTC TX init sr: %1 fps: %2\n", nominal_frame_rate(), timecode_to_frames_per_second(ltc_enc_tcformat))); ltc_encoder = ltc_encoder_create(nominal_frame_rate(), timecode_to_frames_per_second(ltc_enc_tcformat), @@ -119,6 +120,16 @@ Session::ltc_tx_reset() } void +Session::ltc_tx_parse_offset() { + Timecode::Time offset_tc; + Timecode::parse_timecode_format(config.get_timecode_generator_offset(), offset_tc); + offset_tc.rate = timecode_frames_per_second(); + offset_tc.drop = timecode_drop_frames(); + timecode_to_sample(offset_tc, ltc_timecode_offset, false, false); + ltc_timecode_negative_offset = !offset_tc.negative; +} + +void Session::ltc_tx_recalculate_position() { SMPTETimecode enctc; @@ -135,7 +146,7 @@ Session::ltc_tx_recalculate_position() Timecode::timecode_to_sample (a3tc, ltc_enc_pos, true, false, (double)frame_rate(), config.get_subframes_per_frame(), - config.get_timecode_generator_offset_negative(), config.get_timecode_generator_offset() + ltc_timecode_negative_offset, ltc_timecode_offset ); restarting = false; } @@ -204,6 +215,7 @@ Session::ltc_tx_send_time_code_for_cycle (framepos_t start_frame, framepos_t end } ltc_encoder_set_filter(ltc_encoder, LTC_RISE_TIME(ltc_speed)); ltc_enc_tcformat = cur_timecode; + ltc_tx_parse_offset(); ltc_tx_reset(); } @@ -365,14 +377,14 @@ Session::ltc_tx_send_time_code_for_cycle (framepos_t start_frame, framepos_t end timecode_drop_frames(), (double)frame_rate(), config.get_subframes_per_frame(), - config.get_timecode_generator_offset_negative(), config.get_timecode_generator_offset() + ltc_timecode_negative_offset, ltc_timecode_offset ); /* convert timecode back to sample-position */ Timecode::timecode_to_sample (tc_start, tc_sample_start, true, false, (double)frame_rate(), config.get_subframes_per_frame(), - config.get_timecode_generator_offset_negative(), config.get_timecode_generator_offset() + ltc_timecode_negative_offset, ltc_timecode_offset ); /* difference between current frame and TC frame in samples */ |