Respond to MMC even when synced to JACK. Fixes #3700.
[ardour.git] / libs / ardour / session_time.cc
index 1e1ecd3ed9da0b9a4cac3c20dea2bc747b832eda..d9c612fbee8ae0bf141fc678775325e0a68756f0 100644 (file)
@@ -47,7 +47,7 @@ using namespace PBD;
 /* BBT TIME*/
 
 void
-Session::bbt_time (nframes_t when, BBT_Time& bbt)
+Session::bbt_time (framepos_t when, Timecode::BBT_Time& bbt)
 {
        _tempo_map->bbt_time (when, bbt);
 }
@@ -147,21 +147,22 @@ Session::timecode_drop_frames() const
 
                        break;
                default:
-                       cerr << "Editor received unexpected timecode type" << endl;
+                       error << "Editor received unexpected timecode type" << endmsg;
        }
+
        return false;
 }
 void
 Session::sync_time_vars ()
 {
-       _current_frame_rate = (nframes_t) round (_base_frame_rate * (1.0 + (config.get_video_pullup()/100.0)));
+       _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 = (long)(107892 * _frames_per_timecode_frame);
+         _frames_per_hour = (int32_t)(107892 * _frames_per_timecode_frame);
        } else {
-         _frames_per_hour = (long)(3600 * rint(timecode_frames_per_second()) * _frames_per_timecode_frame);
+         _frames_per_hour = (int32_t)(3600 * rint(timecode_frames_per_second()) * _frames_per_timecode_frame);
        }
-       _timecode_frames_per_hour = (nframes_t)rint(timecode_frames_per_second() * 3600.0);
+       _timecode_frames_per_hour = rint(timecode_frames_per_second() * 3600.0);
 
        last_timecode_valid = false;
        // timecode type bits are the middle two in the upper nibble
@@ -186,25 +187,7 @@ Session::sync_time_vars ()
 }
 
 void
-Session::set_timecode_offset (nframes_t off)
-{
-       _timecode_offset = off;
-       last_timecode_valid = false;
-
-       TimecodeOffsetChanged (); /* EMIT SIGNAL */
-}
-
-void
-Session::set_timecode_offset_negative (bool neg)
-{
-       _timecode_offset_negative = neg;
-       last_timecode_valid = false;
-
-       TimecodeOffsetChanged (); /* EMIT SIGNAL */
-}
-
-void
-Session::timecode_to_sample( Timecode::Time& timecode, 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 (timecode.drop) {
@@ -248,13 +231,13 @@ Session::timecode_to_sample( Timecode::Time& timecode, nframes_t& sample, bool u
                //  Per Sigmond <per@sigmond.no>
 
                // Samples inside time dividable by 10 minutes (real time accurate)
-               nframes_t base_samples = (nframes_t) (((timecode.hours * 107892) + ((timecode.minutes / 10) * 17982)) * _frames_per_timecode_frame);
+               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 = timecode.minutes % 10;
-               long exceeding_df_seconds = (exceeding_df_minutes * 60) + timecode.seconds;
-               long exceeding_df_frames = (30 * exceeding_df_seconds) + timecode.frames - (2 * exceeding_df_minutes);
-               nframes_t exceeding_samples = (nframes_t) rint(exceeding_df_frames * _frames_per_timecode_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 {
                /*
@@ -264,30 +247,30 @@ Session::timecode_to_sample( Timecode::Time& timecode, nframes_t& sample, bool u
                   frame_rate() in the non-integer Timecode rate case.
                */
 
-               sample = (nframes_t)rint((((timecode.hours * 60 * 60) + (timecode.minutes * 60) + timecode.seconds) * (rint(timecode.rate) * _frames_per_timecode_frame)) + (timecode.frames * _frames_per_timecode_frame));
+               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)timecode.subframes * _frames_per_timecode_frame) / config.get_subframes_per_frame());
+               sample += (int32_t) (((double)timecode.subframes * _frames_per_timecode_frame) / config.get_subframes_per_frame());
        }
 
        if (use_offset) {
-               if (timecode_offset_negative()) {
-                       if (sample >= timecode_offset()) {
-                               sample -= timecode_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 (timecode.negative) {
-                               if (sample <= timecode_offset()) {
-                                       sample = timecode_offset() - sample;
+                               if (sample <= config.get_timecode_offset()) {
+                                       sample = config.get_timecode_offset() - sample;
                                } else {
                                        sample = 0;
                                }
                        } else {
-                               sample += timecode_offset();
+                               sample += config.get_timecode_offset();
                        }
                }
        }
@@ -296,23 +279,23 @@ Session::timecode_to_sample( Timecode::Time& timecode, nframes_t& sample, bool u
 
 
 void
-Session::sample_to_timecode( nframes_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes ) const
+Session::sample_to_timecode (framepos_t sample, Timecode::Time& timecode, bool use_offset, bool use_subframes ) const
 {
-       nframes_t offset_sample;
+       framepos_t offset_sample;
 
        if (!use_offset) {
                offset_sample = sample;
                timecode.negative = false;
        } else {
-               if (_timecode_offset_negative) {
-                       offset_sample =  sample + _timecode_offset;
+               if (config.get_timecode_offset_negative()) {
+                       offset_sample = sample + config.get_timecode_offset ();
                        timecode.negative = false;
                } else {
-                       if (sample < _timecode_offset) {
-                               offset_sample = (_timecode_offset - sample);
+                       if (sample < config.get_timecode_offset()) {
+                               offset_sample = (config.get_timecode_offset() - sample);
                                timecode.negative = true;
                        } else {
-                               offset_sample =  sample - _timecode_offset;
+                               offset_sample =  sample - config.get_timecode_offset();
                                timecode.negative = false;
                        }
                }
@@ -320,7 +303,7 @@ Session::sample_to_timecode( nframes_t sample, Timecode::Time& timecode, bool us
 
        double timecode_frames_left_exact;
        double timecode_frames_fraction;
-       unsigned long timecode_frames_left;
+       uint32_t timecode_frames_left;
 
        // Extract whole hours. Do this to prevent rounding errors with
        // high sample numbers in the calculations that follow.
@@ -330,7 +313,7 @@ Session::sample_to_timecode( nframes_t sample, Timecode::Time& timecode, bool us
        // 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 = (long) rint(timecode_frames_fraction * config.get_subframes_per_frame());
+       timecode.subframes = (int32_t) rint(timecode_frames_fraction * config.get_subframes_per_frame());
 
        // XXX Not sure if this is necessary anymore...
        if (timecode.subframes == config.get_subframes_per_frame()) {
@@ -340,20 +323,20 @@ Session::sample_to_timecode( nframes_t sample, Timecode::Time& timecode, bool us
        }
 
        // Extract hour-exceeding frames for minute, second and frame calculations
-       timecode_frames_left = ((long) floor( timecode_frames_left_exact ));
+       timecode_frames_left = (uint32_t) floor (timecode_frames_left_exact);
 
        if (timecode_drop_frames()) {
-               // See long explanation in timecode_to_sample()...
+               // See int32_t explanation in timecode_to_sample()...
 
                // Number of 10 minute chunks
                timecode.minutes = (timecode_frames_left / 17982) * 10; // exactly 17982 frames in 10 minutes
                // frames exceeding the nearest 10 minute barrier
-               long exceeding_df_frames = timecode_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
                        timecode.minutes += extra_minutes_minus_1 + 1; // update with exceeding minutes
                }
@@ -378,10 +361,10 @@ Session::sample_to_timecode( nframes_t sample, Timecode::Time& timecode, bool us
                }
        } else {
                // Non drop is easy
-               timecode.minutes = timecode_frames_left / ((long) rint (timecode_frames_per_second ()) * 60);
-               timecode_frames_left = timecode_frames_left % ((long) rint (timecode_frames_per_second ()) * 60);
-               timecode.seconds = timecode_frames_left / (long) rint(timecode_frames_per_second ());
-               timecode.frames = timecode_frames_left % (long) rint(timecode_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) {
@@ -393,7 +376,7 @@ Session::sample_to_timecode( nframes_t sample, Timecode::Time& timecode, bool us
 }
 
 void
-Session::timecode_time (nframes_t when, Timecode::Time& timecode)
+Session::timecode_time (framepos_t when, Timecode::Time& timecode)
 {
        if (last_timecode_valid && when == last_timecode_when) {
                timecode = last_timecode;
@@ -408,7 +391,7 @@ Session::timecode_time (nframes_t when, Timecode::Time& timecode)
 }
 
 void
-Session::timecode_time_subframes (nframes_t when, Timecode::Time& timecode)
+Session::timecode_time_subframes (framepos_t when, Timecode::Time& timecode)
 {
        if (last_timecode_valid && when == last_timecode_when) {
                timecode = last_timecode;
@@ -423,13 +406,13 @@ Session::timecode_time_subframes (nframes_t when, Timecode::Time& timecode)
 }
 
 void
-Session::timecode_duration (nframes_t when, Timecode::Time& timecode) const
+Session::timecode_duration (framecnt_t when, Timecode::Time& timecode) const
 {
        sample_to_timecode( when, timecode, false /* use_offset */, true /* use_subframes */ );
 }
 
 void
-Session::timecode_duration_string (char* buf, nframes_t when) const
+Session::timecode_duration_string (char* buf, framepos_t when) const
 {
        Timecode::Time timecode;
 
@@ -486,16 +469,15 @@ Session::jack_sync_callback (jack_transport_state_t state,
 
 void
 Session::jack_timebase_callback (jack_transport_state_t /*state*/,
-                                nframes_t /*nframes*/,
+                                pframes_t /*nframes*/,
                                 jack_position_t* pos,
                                 int /*new_position*/)
 {
-       BBT_Time bbt;
+       Timecode::BBT_Time bbt;
 
-       /* frame info */
-
-       pos->frame = _transport_frame;
-       pos->valid = JackPositionTimecode;
+       if (pos->frame != _transport_frame) {
+               cerr << "ARDOUR says " << _transport_frame << " JACK says " << pos->frame << endl;
+       }
 
        /* BBT info */
 
@@ -512,7 +494,7 @@ Session::jack_timebase_callback (jack_transport_state_t /*state*/,
 
                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->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);
@@ -527,8 +509,9 @@ Session::jack_timebase_callback (jack_transport_state_t /*state*/,
 #if 0
        /* Timecode info */
 
-       t.timecode_offset = _timecode_offset;
+       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) {
 
@@ -560,44 +543,75 @@ Session::jack_timebase_callback (jack_transport_state_t /*state*/,
                }
 
        }
-
 #endif
 }
 
-ARDOUR::nframes_t
-Session::convert_to_frames_at (nframes_t /*position*/, AnyTime const & 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::Timecode:
                /* XXX need to handle negative values */
-               secs = any.timecode.hours * 60 * 60;
-               secs += any.timecode.minutes * 60;
-               secs += any.timecode.seconds;
-               secs += any.timecode.frames / timecode_frames_per_second();
-               if (_timecode_offset_negative)
-               {
-                       return (nframes_t) floor (secs * frame_rate()) - _timecode_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 (nframes_t) floor (secs * frame_rate()) + _timecode_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 (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;
 }