/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ 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.
- This program is distributed in the hope that it will be useful,
+ 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 this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
-/** @file src/decoder.cc
- * @brief Parent class for decoders of content.
- */
-
-#include <iostream>
-#include "film.h"
-#include "exceptions.h"
-#include "util.h"
#include "decoder.h"
+#include "video_decoder.h"
+#include "audio_decoder.h"
+#include "subtitle_decoder.h"
+#include <boost/optional.hpp>
+#include <iostream>
-#include "i18n.h"
-
-using std::string;
-using boost::shared_ptr;
+using std::cout;
+using boost::optional;
-/** @param f Film.
- * @param o Decode options.
- */
-Decoder::Decoder (shared_ptr<const Film> f)
- : _film (f)
+/** @return Earliest time of content that the next pass() will emit */
+ContentTime
+Decoder::position () const
{
- _film_connection = f->Changed.connect (bind (&Decoder::film_changed, this, _1));
+ optional<ContentTime> pos;
+
+ if (video && !video->ignore() && (!pos || video->position() < *pos)) {
+ pos = video->position();
+ }
+
+ if (audio && !audio->ignore() && (!pos || audio->position() < *pos)) {
+ pos = audio->position();
+ }
+
+ if (subtitle && !subtitle->ignore() && (!pos || subtitle->position() < *pos)) {
+ pos = subtitle->position();
+ }
+
+ return pos.get_value_or(ContentTime());
}
-/** Seek to a position as a content timestamp in seconds.
- * @return true on error.
- */
-bool
-Decoder::seek (double)
+void
+Decoder::seek (ContentTime, bool)
{
- throw DecodeError (N_("decoder does not support seek"));
+ if (audio) {
+ audio->seek ();
+ }
+ if (subtitle) {
+ subtitle->seek ();
+ }
}