/*
- Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
*/
-#include "frame_rate_change.h"
-#include "types.h"
+
+#include "compose.hpp"
#include "content.h"
#include "film.h"
-#include "compose.hpp"
+#include "frame_rate_change.h"
#include <cmath>
#include "i18n.h"
-using std::string;
+
using std::shared_ptr;
+using std::string;
-static bool
-about_equal (double a, double b)
-{
- return (fabs (a - b) < VIDEO_FRAME_RATE_EPSILON);
-}
FrameRateChange::FrameRateChange ()
- : source (24)
- , dcp (24)
- , skip (false)
- , repeat (1)
- , change_speed (false)
- , speed_up (1)
{
}
-FrameRateChange::FrameRateChange (double source_, int dcp_)
- : skip (false)
- , repeat (1)
- , change_speed (false)
-{
- construct (source_, dcp_);
-}
-void
-FrameRateChange::construct (double source_, int dcp_)
+FrameRateChange::FrameRateChange (double source_, int dcp_)
{
source = source_;
dcp = dcp_;
- if (fabs (source / 2.0 - dcp) < fabs (source - dcp)) {
+ if (fabs(source / 2.0 - dcp) < fabs(source - dcp)) {
/* The difference between source and DCP frame rate will be lower
(i.e. better) if we skip.
*/
skip = true;
- } else if (fabs (source * 2 - dcp) < fabs (source - dcp)) {
+ } else if (fabs(source * 2 - dcp) < fabs(source - dcp)) {
/* The difference between source and DCP frame rate would be better
if we repeated each frame once; it may be better still if we
repeated more than once. Work out the required repeat.
}
speed_up = dcp / (source * factor());
+
+ auto about_equal = [](double a, double b) {
+ return (fabs (a - b) < VIDEO_FRAME_RATE_EPSILON);
+ };
+
change_speed = !about_equal (speed_up, 1.0);
}
+
FrameRateChange::FrameRateChange (shared_ptr<const Film> film, shared_ptr<const Content> content)
- : skip (false)
- , repeat (1)
+ : FrameRateChange (content->active_video_frame_rate(film), film->video_frame_rate())
{
- construct (content->active_video_frame_rate(film), film->video_frame_rate());
+
}
+
FrameRateChange::FrameRateChange (shared_ptr<const Film> film, Content const * content)
- : skip (false)
- , repeat (1)
+ : FrameRateChange (content->active_video_frame_rate(film), film->video_frame_rate())
{
- construct (content->active_video_frame_rate(film), film->video_frame_rate());
+
}
+
string
FrameRateChange::description () const
{