/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2018 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 "decoder.h"
-#include "decoded.h"
-
-#include "i18n.h"
+#include "video_decoder.h"
+#include "audio_decoder.h"
+#include "text_decoder.h"
+#include <boost/optional.hpp>
+#include <iostream>
using std::cout;
+using boost::optional;
using boost::shared_ptr;
+using boost::weak_ptr;
-/** @param o Decode options.
- */
-Decoder::Decoder ()
- : _done (false)
+Decoder::Decoder (weak_ptr<const Film> film)
+ : _film (film)
{
}
-struct DecodedSorter
+/** @return Earliest time of content that the next pass() will emit */
+ContentTime
+Decoder::position () const
{
- bool operator() (shared_ptr<Decoded> a, shared_ptr<Decoded> b)
- {
- return a->dcp_time < b->dcp_time;
+ optional<ContentTime> pos;
+ shared_ptr<const Film> f = film();
+
+ if (video && !video->ignore() && (!pos || video->position(f) < *pos)) {
+ pos = video->position(f);
}
-};
-shared_ptr<Decoded>
-Decoder::peek ()
-{
- while (!_done && _pending.empty ()) {
- _done = pass ();
+ if (audio && !audio->ignore() && (!pos || audio->position(f) < *pos)) {
+ pos = audio->position(f);
}
- if (_done && _pending.empty ()) {
- return shared_ptr<Decoded> ();
+ BOOST_FOREACH (shared_ptr<TextDecoder> i, text) {
+ if (!i->ignore() && (!pos || i->position(f) < *pos)) {
+ pos = i->position(f);
+ }
}
- _pending.sort (DecodedSorter ());
- return _pending.front ();
+ return pos.get_value_or(ContentTime());
}
void
-Decoder::consume ()
+Decoder::seek (ContentTime, bool)
+{
+ if (video) {
+ video->seek ();
+ }
+ if (audio) {
+ audio->seek ();
+ }
+ BOOST_FOREACH (shared_ptr<TextDecoder> i, text) {
+ i->seek ();
+ }
+}
+
+shared_ptr<TextDecoder>
+Decoder::only_text () const
{
- if (!_pending.empty ()) {
- _pending.pop_front ();
+ DCPOMATIC_ASSERT (text.size() < 2);
+ if (text.empty ()) {
+ return shared_ptr<TextDecoder> ();
}
+ return text.front ();
}
-void
-Decoder::seek (ContentTime, bool)
+shared_ptr<const Film>
+Decoder::film () const
{
- _pending.clear ();
- _done = false;
+ shared_ptr<const Film> f = _film.lock ();
+ DCPOMATIC_ASSERT (f);
+ return f;
}