along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id$
*/
#include <iostream>
#include <cmath>
#include <unistd.h>
-#include <ardour/timestamps.h>
+#include "ardour/timestamps.h"
-#include <pbd/error.h>
+#include "pbd/error.h"
+#include "pbd/enumwriter.h"
+#include "pbd/stacktrace.h"
-#include <ardour/ardour.h>
-#include <ardour/configuration.h>
-#include <ardour/audioengine.h>
-#include <ardour/session.h>
-#include <ardour/tempo.h>
+#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 sigc;
+using namespace PBD;
/* BBT TIME*/
void
-Session::bbt_time (jack_nframes_t when, BBT_Time& bbt)
+Session::bbt_time (nframes_t when, BBT_Time& bbt)
{
_tempo_map->bbt_time (when, bbt);
}
/* SMPTE TIME */
+float
+Session::smpte_frames_per_second() const
+{
+ switch (config.get_smpte_format()) {
+ case smpte_23976:
+ return 23.976;
-int
-Session::set_smpte_type (float fps, bool drop_frames)
+ break;
+ case smpte_24:
+ return 24;
+
+ break;
+ case smpte_24976:
+ return 24.976;
+
+ break;
+ case smpte_25:
+ return 25;
+
+ break;
+ case smpte_2997:
+ return 29.97;
+
+ break;
+ case smpte_2997drop:
+ return 29.97;
+
+ break;
+ case smpte_30:
+ return 30;
+
+ break;
+ case smpte_30drop:
+ return 30;
+
+ break;
+ case smpte_5994:
+ return 59.94;
+
+ break;
+ case smpte_60:
+ return 60;
+
+ break;
+ default:
+ cerr << "Editor received unexpected smpte type" << endl;
+ }
+ return 30.0;
+}
+bool
+Session::smpte_drop_frames() const
{
- smpte_frames_per_second = fps;
- smpte_drop_frames = drop_frames;
- _frames_per_smpte_frame = (double) _current_frame_rate / (double) smpte_frames_per_second;
- _frames_per_hour = _current_frame_rate * 3600;
- _smpte_frames_per_hour = (unsigned long) (smpte_frames_per_second * 3600.0);
+ switch (config.get_smpte_format()) {
+ case smpte_23976:
+ return false;
+
+ break;
+ case smpte_24:
+ return false;
+
+ break;
+ case smpte_24976:
+ return false;
+
+ break;
+ case smpte_25:
+ return false;
+
+ break;
+ case smpte_2997:
+ return false;
+
+ break;
+ case smpte_2997drop:
+ return true;
+
+ break;
+ case smpte_30:
+ return false;
+
+ break;
+ case smpte_30drop:
+ return true;
+
+ break;
+ case smpte_5994:
+ return false;
+ break;
+ case smpte_60:
+ return false;
+
+ break;
+ default:
+ cerr << "Editor received unexpected smpte type" << endl;
+ }
+ return false;
+}
+void
+Session::sync_time_vars ()
+{
+ _current_frame_rate = (nframes_t) round (_base_frame_rate * (1.0 + (config.get_video_pullup()/100.0)));
+ _frames_per_smpte_frame = (double) _current_frame_rate / (double) smpte_frames_per_second();
+ if (smpte_drop_frames()) {
+ _frames_per_hour = (long)(107892 * _frames_per_smpte_frame);
+ } else {
+ _frames_per_hour = (long)(3600 * rint(smpte_frames_per_second()) * _frames_per_smpte_frame);
+ }
+ _smpte_frames_per_hour = (nframes_t)rint(smpte_frames_per_second() * 3600.0);
last_smpte_valid = false;
// smpte type bits are the middle two in the upper nibble
- switch ((int) ceil (fps)) {
+ switch ((int) ceil (smpte_frames_per_second())) {
case 24:
mtc_smpte_bits = 0;
- SMPTE::Time::default_rate = SMPTE::MTC_24_FPS;
break;
case 25:
mtc_smpte_bits = 0x20;
- SMPTE::Time::default_rate = SMPTE::MTC_25_FPS;
break;
case 30:
default:
- if (drop_frames) {
+ if (smpte_drop_frames()) {
mtc_smpte_bits = 0x40;
- SMPTE::Time::default_rate = SMPTE::MTC_30_FPS_DROP;
} else {
mtc_smpte_bits = 0x60;
- SMPTE::Time::default_rate = SMPTE::MTC_30_FPS;
}
break;
};
-
- SMPTETypeChanged (); /* EMIT SIGNAL */
-
- set_dirty();
-
- return 0;
}
void
-Session::set_smpte_offset (jack_nframes_t off)
+Session::set_smpte_offset (nframes_t off)
{
_smpte_offset = off;
last_smpte_valid = false;
+
SMPTEOffsetChanged (); /* EMIT SIGNAL */
}
{
_smpte_offset_negative = neg;
last_smpte_valid = false;
+
SMPTEOffsetChanged (); /* EMIT SIGNAL */
}
-
void
-Session::smpte_to_sample( SMPTE::Time& smpte, jack_nframes_t& sample, bool use_offset, bool use_subframes ) const
+Session::smpte_to_sample( SMPTE::Time& smpte, nframes_t& sample, bool use_offset, bool use_subframes ) const
{
- if (smpte_drop_frames) {
+
+ if (smpte.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
// 0:10:00:00 0.0 0 600.000 26460000 (accurate)
//
// Per Sigmond <per@sigmond.no>
-
+
// 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();
+ nframes_t base_samples = (nframes_t) (((smpte.hours * 107892) + ((smpte.minutes / 10) * 17982)) * _frames_per_smpte_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);
+ nframes_t exceeding_samples = (nframes_t) rint(exceeding_df_frames * _frames_per_smpte_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(smpte.rate) * _frames_per_smpte_frame
+ (frames per SMPTE second), which is larger than
+ frame_rate() in the non-integer SMPTE rate case.
+ */
+
+ sample = (nframes_t)rint((((smpte.hours * 60 * 60) + (smpte.minutes * 60) + smpte.seconds) * (rint(smpte.rate) * _frames_per_smpte_frame)) + (smpte.frames * _frames_per_smpte_frame));
}
if (use_subframes) {
- sample += (long) (((double)smpte.subframes * _frames_per_smpte_frame) / 80.0);
+ sample += (long) (((double)smpte.subframes * _frames_per_smpte_frame) / config.get_subframes_per_frame());
}
if (use_offset) {
}
}
}
+
}
void
-Session::sample_to_smpte( jack_nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const
+Session::sample_to_smpte( nframes_t sample, SMPTE::Time& smpte, bool use_offset, bool use_subframes ) const
{
- jack_nframes_t offset_sample;
-
+ nframes_t offset_sample;
+
if (!use_offset) {
offset_sample = sample;
smpte.negative = false;
// high sample numbers in the calculations that follow.
smpte.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);
+ smpte.subframes = (long) rint(smpte_frames_fraction * config.get_subframes_per_frame());
// XXX Not sure if this is necessary anymore...
- if (smpte.subframes == 80) {
+ if (smpte.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;
// Extract hour-exceeding frames for minute, second and frame calculations
smpte_frames_left = ((long) floor( smpte_frames_left_exact ));
- if (smpte_drop_frames) {
+ if (smpte_drop_frames()) {
// See long explanation in smpte_to_sample()...
// Number of 10 minute chunks
}
} 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;
+ smpte.minutes = smpte_frames_left / ((long) rint (smpte_frames_per_second ()) * 60);
+ smpte_frames_left = smpte_frames_left % ((long) rint (smpte_frames_per_second ()) * 60);
+ smpte.seconds = smpte_frames_left / (long) rint(smpte_frames_per_second ());
+ smpte.frames = smpte_frames_left % (long) rint(smpte_frames_per_second ());
}
if (!use_subframes) {
smpte.subframes = 0;
}
+ /* set frame rate and drop frame */
+ smpte.rate = smpte_frames_per_second ();
+ smpte.drop = smpte_drop_frames();
}
void
-Session::smpte_time (jack_nframes_t when, SMPTE::Time& smpte)
+Session::smpte_time (nframes_t when, SMPTE::Time& smpte)
{
if (last_smpte_valid && when == last_smpte_when) {
smpte = last_smpte;
}
void
-Session::smpte_time_subframes (jack_nframes_t when, SMPTE::Time& smpte)
+Session::smpte_time_subframes (nframes_t when, SMPTE::Time& smpte)
{
if (last_smpte_valid && when == last_smpte_when) {
smpte = last_smpte;
}
void
-Session::smpte_duration (jack_nframes_t when, SMPTE::Time& smpte) const
+Session::smpte_duration (nframes_t when, SMPTE::Time& smpte) const
{
sample_to_smpte( when, smpte, false /* use_offset */, true /* use_subframes */ );
}
void
-Session::smpte_duration_string (char* buf, jack_nframes_t when) const
+Session::smpte_duration_string (char* buf, nframes_t when) const
{
SMPTE::Time smpte;
smpte_duration (when, smpte);
- snprintf (buf, sizeof (buf), "%02ld:%02ld:%02ld:%02ld", smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
+ snprintf (buf, sizeof (buf), "%02" PRIu32 ":%02" PRIu32 ":%02" PRIu32 ":%02" PRIu32, smpte.hours, smpte.minutes, smpte.seconds, smpte.frames);
}
void
void
Session::jack_timebase_callback (jack_transport_state_t state,
- jack_nframes_t nframes,
+ nframes_t nframes,
jack_position_t* pos,
int new_position)
{
pos->valid = jack_position_bits_t (pos->valid | JackPositionBBT);
}
+#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->valid = jack_position_bits_t (pos->valid | JackAudioVideoRatio);
+#endif
+
#if 0
/* SMPTE info */
t.smpte_offset = _smpte_offset;
- t.smpte_frame_rate = smpte_frames_per_second;
+ t.smpte_frame_rate = smpte_frames_per_second();
if (_transport_speed) {
- if (auto_loop) {
+ if (play_loop) {
Location* location = _locations.auto_loop_location();
#endif
}
-jack_nframes_t
-Session::convert_to_frames_at (jack_nframes_t position, AnyTime& any)
+ARDOUR::nframes_t
+Session::convert_to_frames_at (nframes_t position, AnyTime const & any)
{
double secs;
secs = any.smpte.hours * 60 * 60;
secs += any.smpte.minutes * 60;
secs += any.smpte.seconds;
- secs += any.smpte.frames / smpte_frames_per_second;
+ secs += any.smpte.frames / smpte_frames_per_second();
if (_smpte_offset_negative)
{
- return (jack_nframes_t) floor (secs * frame_rate()) - _smpte_offset;
+ return (nframes_t) floor (secs * frame_rate()) - _smpte_offset;
}
else
{
- return (jack_nframes_t) floor (secs * frame_rate()) + _smpte_offset;
+ return (nframes_t) floor (secs * frame_rate()) + _smpte_offset;
}
break;
case AnyTime::Seconds:
- return (jack_nframes_t) floor (any.seconds * frame_rate());
+ return (nframes_t) floor (any.seconds * frame_rate());
break;
case AnyTime::Frames:
projects / ardour.git / blobdiff