X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fframe_rate_change.cc;h=a1ff2ae650a93d7ec19782763f359b4b6a0c883a;hb=38e89b25f6042d7a9dc023bbdeff98b09cbdd26f;hp=8ad6de9425aa2675158ed5b7a3421658e4c0aedf;hpb=c4b8fcfd1f755c08e5a0e18812d51c519f081f13;p=dcpomatic.git diff --git a/src/lib/frame_rate_change.cc b/src/lib/frame_rate_change.cc index 8ad6de942..a1ff2ae65 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 + Copyright (C) 2012-2021 Carl Hetherington This file is part of DCP-o-matic. @@ -18,6 +18,7 @@ */ + #include "frame_rate_change.h" #include "types.h" #include "content.h" @@ -27,46 +28,28 @@ #include "i18n.h" + using std::string; -using boost::shared_ptr; +using std::shared_ptr; -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. @@ -75,23 +58,29 @@ FrameRateChange::construct (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 film, shared_ptr 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 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 {