X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fframe_rate_change.cc;h=8372493ef71e04c4ffe51cf7338d547c36986664;hb=refs%2Fheads%2F2493-player-export-frame;hp=80a167029009349913b21e15c35d6aa0c760b4f2;hpb=6a18a737ef8dfbfbe909afe8266f104a2125b5fb;p=dcpomatic.git

diff --git a/src/lib/frame_rate_change.cc b/src/lib/frame_rate_change.cc
index 80a167029..8372493ef 100644
--- a/src/lib/frame_rate_change.cc
+++ b/src/lib/frame_rate_change.cc
@@ -1,5 +1,5 @@
 /*
-    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.
 
@@ -18,35 +18,37 @@
 
 */
 
-#include "frame_rate_change.h"
-#include "types.h"
+
 #include "compose.hpp"
+#include "content.h"
+#include "film.h"
+#include "frame_rate_change.h"
 #include <cmath>
 
 #include "i18n.h"
 
+
+using std::shared_ptr;
 using std::string;
 
-static bool
-about_equal (double a, double b)
+
+FrameRateChange::FrameRateChange ()
 {
-	return (fabs (a - b) < VIDEO_FRAME_RATE_EPSILON);
+
 }
 
 
 FrameRateChange::FrameRateChange (double source_, int dcp_)
-	: source (source_)
-	, dcp (dcp_)
-	, skip (false)
-	, repeat (1)
-	, change_speed (false)
 {
-	if (fabs (source / 2.0 - dcp) < fabs (source - dcp)) {
+	source = source_;
+	dcp = 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.
@@ -55,9 +57,29 @@ FrameRateChange::FrameRateChange (double source_, int dcp_)
 	}
 
 	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)
+	: FrameRateChange (content->active_video_frame_rate(film), film->video_frame_rate())
+{
+
+}
+
+
+FrameRateChange::FrameRateChange (shared_ptr<const Film> film, Content const * content)
+	: FrameRateChange (content->active_video_frame_rate(film), film->video_frame_rate())
+{
+
+}
+
+
 string
 FrameRateChange::description () const
 {
@@ -76,7 +98,9 @@ FrameRateChange::description () const
 
 		if (change_speed) {
 			double const pc = dcp * 100 / (source * factor());
-			description += String::compose (_("DCP will run at %1%% of the content speed.\n"), pc);
+			char buffer[256];
+			snprintf (buffer, sizeof(buffer), _("DCP will run at %.1f%% of the content speed.\n"), pc);
+			description += buffer;
 		}
 	}