Change video content scaling so that it either:

1. scales the content up to fit the DCP container,
preserving aspect ratio, or
2. stretches the content to a custom aspect ratio, or
3. scales the content to some custom size.

1 files changed, 0 insertions, 171 deletions

diff --git a/src/lib/video_content_scale.cc b/src/lib/video_content_scale.cc
deleted file mode 100644
index 73dfd27fe..000000000
--- a/src/lib/video_content_scale.cc
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
-    Copyright (C) 2013-2018 Carl Hetherington <cth@carlh.net>
-
-    This file is part of DCP-o-matic.
-
-    DCP-o-matic is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    DCP-o-matic is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
-
-*/
-
-#include "video_content_scale.h"
-#include "video_content.h"
-#include "ratio.h"
-#include "util.h"
-#include <libcxml/cxml.h>
-#include <libxml++/libxml++.h>
-#include <boost/optional.hpp>
-#include <iostream>
-
-#include "i18n.h"
-
-using std::vector;
-using std::string;
-using std::min;
-using std::cout;
-using boost::shared_ptr;
-using boost::optional;
-
-vector<VideoContentScale> VideoContentScale::_scales;
-
-VideoContentScale::VideoContentScale (Ratio const * r)
-	: _ratio (r)
-	, _scale (true)
-{
-
-}
-
-VideoContentScale::VideoContentScale ()
-	: _ratio (0)
-	, _scale (false)
-{
-
-}
-
-VideoContentScale::VideoContentScale (bool scale)
-	: _ratio (0)
-	, _scale (scale)
-{
-
-}
-
-VideoContentScale::VideoContentScale (shared_ptr<cxml::Node> node)
-	: _ratio (0)
-	, _scale (true)
-{
-	optional<string> r = node->optional_string_child ("Ratio");
-	if (r) {
-		_ratio = Ratio::from_id (r.get ());
-	} else {
-		_scale = node->bool_child ("Scale");
-	}
-}
-
-void
-VideoContentScale::as_xml (xmlpp::Node* node) const
-{
-	if (_ratio) {
-		node->add_child("Ratio")->add_child_text (_ratio->id ());
-	} else {
-		node->add_child("Scale")->add_child_text (_scale ? "1" : "0");
-	}
-}
-
-string
-VideoContentScale::id () const
-{
-	if (_ratio) {
-		return _ratio->id ();
-	}
-
-	return (_scale ? "S1" : "S0");
-}
-
-string
-VideoContentScale::name () const
-{
-	if (_ratio) {
-		return _ratio->image_nickname ();
-	}
-
-	if (_scale) {
-		return _("No stretch");
-	}
-
-	return _("No scale");
-}
-
-/** @param display_container Size of the container that we are displaying this content in.
- *  @param film_container The size of the film's image.
- *  @return Size, in pixels that the VideoContent's image should be scaled to (taking into account its pixel aspect ratio)
- */
-dcp::Size
-VideoContentScale::size (shared_ptr<const VideoContent> c, dcp::Size display_container, dcp::Size film_container) const
-{
-	/* Work out the size of the content if it were put inside film_container */
-
-	dcp::Size video_size_after_crop = c->size_after_crop();
-	video_size_after_crop.width *= c->sample_aspect_ratio().get_value_or(1);
-
-	dcp::Size size;
-
-	if (_ratio) {
-		/* Stretch to fit the requested ratio */
-		size = fit_ratio_within (_ratio->ratio (), film_container);
-	} else if (_scale || video_size_after_crop.width > film_container.width || video_size_after_crop.height > film_container.height) {
-		/* Scale, preserving aspect ratio; this is either if we have been asked to scale with no stretch
-		   or if the unscaled content is too big for film_container.
-		*/
-		size = fit_ratio_within (video_size_after_crop.ratio(), film_container);
-	} else {
-		/* No stretch nor scale */
-		size = video_size_after_crop;
-	}
-
-	/* Now scale it down if the display container is smaller than the film container */
-	if (display_container != film_container) {
-		float const scale = min (
-			float (display_container.width) / film_container.width,
-			float (display_container.height) / film_container.height
-			);
-
-		size.width = lrintf (size.width * scale);
-		size.height = lrintf (size.height * scale);
-	}
-
-	return size;
-}
-
-void
-VideoContentScale::setup_scales ()
-{
-	vector<Ratio const *> ratios = Ratio::all ();
-	for (vector<Ratio const *>::const_iterator i = ratios.begin(); i != ratios.end(); ++i) {
-		_scales.push_back (VideoContentScale (*i));
-	}
-
-	_scales.push_back (VideoContentScale (true));
-	_scales.push_back (VideoContentScale (false));
-}
-
-bool
-operator== (VideoContentScale const & a, VideoContentScale const & b)
-{
-	return (a.ratio() == b.ratio() && a.scale() == b.scale());
-}
-
-bool
-operator!= (VideoContentScale const & a, VideoContentScale const & b)
-{
-	return (a.ratio() != b.ratio() || a.scale() != b.scale());
-}