--- /dev/null
+/*
+ Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+
+ This program 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.
+
+ This program 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 this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+/** @file src/ab_transcoder.h
+ * @brief A transcoder which uses one FilmState for the left half of the screen, and a different one
+ * for the right half (to facilitate A/B comparisons of settings)
+ */
+
+#include <boost/shared_ptr.hpp>
+#include <stdint.h>
+
+class Job;
+class Encoder;
+class Decoder;
+class FilmState;
+class Options;
+class Image;
+class Log;
+
+/** @class ABTranscoder
+ * @brief A transcoder which uses one FilmState for the left half of the screen, and a different one
+ * for the right half (to facilitate A/B comparisons of settings)
+ */
+class ABTranscoder
+{
+public:
+ ABTranscoder (
+ boost::shared_ptr<const FilmState> a,
+ boost::shared_ptr<const FilmState> b,
+ boost::shared_ptr<const Options> o,
+ Job* j,
+ Log* l,
+ boost::shared_ptr<Encoder> e
+ );
+
+ ~ABTranscoder ();
+
+ void go ();
+
+private:
+ void process_video (boost::shared_ptr<Image>, int, int);
+
+ boost::shared_ptr<const FilmState> _fs_a;
+ boost::shared_ptr<const FilmState> _fs_b;
+ boost::shared_ptr<const Options> _opt;
+ Job* _job;
+ Log* _log;
+ boost::shared_ptr<Encoder> _encoder;
+ boost::shared_ptr<Decoder> _da;
+ boost::shared_ptr<Decoder> _db;
+ int _last_frame;
+ boost::shared_ptr<Image> _image;
+};