Add PixelQuanta to VideoContent.

1 files changed, 63 insertions, 0 deletions

diff --git a/src/lib/pixel_quanta.h b/src/lib/pixel_quanta.h
new file mode 100644
index 000000000..e4a03c9d2
--- /dev/null
+++ b/src/lib/pixel_quanta.h
@@ -0,0 +1,63 @@
+/*
+    Copyright (C) 2021 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/>.
+
+*/
+
+
+#ifndef DCPOMATIC_PIXEL_QUANTA_H
+#define DCPOMATIC_PIXEL_QUANTA_H
+
+
+#include "warnings.h"
+
+#include <libcxml/cxml.h>
+DCPOMATIC_DISABLE_WARNINGS
+#include <libxml++/libxml++.h>
+DCPOMATIC_ENABLE_WARNINGS
+
+
+class PixelQuanta
+{
+public:
+	PixelQuanta ()
+		: x(1)
+		, y(1)
+	{}
+
+	/** @param x number of pixels that must not be split in the x direction; e.g. if x=2 scale should
+	 *  only happen to multiples of 2 width, and x crop should only happen at multiples of 2 position.
+	 *  @param y similar value for y / height.
+	 */
+	PixelQuanta (int x_, int y_)
+		: x(x_)
+		, y(y_)
+	{}
+
+	PixelQuanta (cxml::ConstNodePtr node);
+
+	void as_xml (xmlpp::Element* node) const;
+
+	int x;
+	int y;
+};
+
+
+PixelQuanta max (PixelQuanta const& a, PixelQuanta const& b);
+
+#endif
+