Take Film pointer out of Content.

[dcpomatic.git] / src / lib / dcp_subtitle_decoder.cc

diff --git a/src/lib/dcp_subtitle_decoder.cc b/src/lib/dcp_subtitle_decoder.cc
index 2a9b52869ce770693f85cb44e8ac7e9d1af78a22..07e879ddfad8ac0d685980bba67c95cc29783643 100644 (file)
--- a/src/lib/dcp_subtitle_decoder.cc
+++ b/src/lib/dcp_subtitle_decoder.cc
@@ -1,83 +1,95 @@
 /*
-    Copyright (C) 2014 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2014-2018 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/>.
 
 */
 
 #include "dcp_subtitle_decoder.h"
 #include "dcp_subtitle_content.h"
-#include <dcp/interop_subtitle_content.h>
+#include <dcp/interop_subtitle_asset.h>
+#include <iostream>
 
 using std::list;
 using std::cout;
 using boost::shared_ptr;
+using boost::dynamic_pointer_cast;
+using boost::bind;
 
 DCPSubtitleDecoder::DCPSubtitleDecoder (shared_ptr<const DCPSubtitleContent> content)
-       : SubtitleDecoder (content)
 {
-       dcp::InteropSubtitleContent c (content->path (0));
-       _subtitles = c.subtitles ();
+       shared_ptr<dcp::SubtitleAsset> c (load (content->path (0)));
+       _subtitles = c->subtitles ();
        _next = _subtitles.begin ();
+
+       ContentTime first;
+       if (_next != _subtitles.end()) {
+               first = content_time_period(*_next).from;
+       }
+       text.push_back (shared_ptr<TextDecoder> (new TextDecoder (this, content->only_text(), first)));
 }
 
 void
-DCPSubtitleDecoder::seek (ContentTime time, bool accurate)
+DCPSubtitleDecoder::seek (shared_ptr<const Film> film, ContentTime time, bool accurate)
 {
-       SubtitleDecoder::seek (time, accurate);
+       Decoder::seek (film, time, accurate);
 
        _next = _subtitles.begin ();
-       list<dcp::SubtitleString>::const_iterator i = _subtitles.begin ();
-       while (i != _subtitles.end() && ContentTime::from_seconds (_next->in().to_seconds()) < time) {
+       list<shared_ptr<dcp::Subtitle> >::const_iterator i = _subtitles.begin ();
+       while (i != _subtitles.end() && ContentTime::from_seconds ((*_next)->in().as_seconds()) < time) {
                ++i;
        }
 }
 
 bool
-DCPSubtitleDecoder::pass ()
+DCPSubtitleDecoder::pass (shared_ptr<const Film>)
 {
        if (_next == _subtitles.end ()) {
                return true;
        }
 
-       list<dcp::SubtitleString> s;
-       s.push_back (*_next);
-       text_subtitle (s);
-       ++_next;
+       /* Gather all subtitles with the same time period that are next
+          on the list.  We must emit all subtitles for the same time
+          period with the same plain_text() call otherwise the
+          TextDecoder will assume there is nothing else at the
+          time of emit the first.
+       */
 
-       return false;
-}
+       list<dcp::SubtitleString> s;
+       ContentTimePeriod const p = content_time_period (*_next);
 
-list<ContentTimePeriod>
-DCPSubtitleDecoder::subtitles_during (ContentTimePeriod p, bool starting) const
-{
-       /* XXX: inefficient */
-
-       list<ContentTimePeriod> d;
-
-       for (list<dcp::SubtitleString>::const_iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
-               ContentTimePeriod period (
-                       ContentTime::from_seconds (i->in().to_seconds ()),
-                       ContentTime::from_seconds (i->out().to_seconds ())
-                       );
-               
-               if ((starting && p.contains (period.from)) || (!starting && p.overlaps (period))) {
-                       d.push_back (period);
+       while (_next != _subtitles.end () && content_time_period (*_next) == p) {
+               shared_ptr<dcp::SubtitleString> ns = dynamic_pointer_cast<dcp::SubtitleString>(*_next);
+               if (ns) {
+                       s.push_back (*ns);
+                       ++_next;
                }
+
+               /* XXX: image subtitles */
        }
 
-       return d;
+       only_text()->emit_plain (p, s);
+       return false;
 }
 
+ContentTimePeriod
+DCPSubtitleDecoder::content_time_period (shared_ptr<dcp::Subtitle> s) const
+{
+       return ContentTimePeriod (
+               ContentTime::from_seconds (s->in().as_seconds ()),
+               ContentTime::from_seconds (s->out().as_seconds ())
+               );
+}