1 files changed, 105 insertions, 0 deletions
diff --git a/src/lib/subrip_decoder.cc b/src/lib/subrip_decoder.cc
new file mode 100644
index 000000000..411e7542d
--- /dev/null
+++ b/src/lib/subrip_decoder.cc
@@ -0,0 +1,105 @@
+/*
+    Copyright (C) 2014 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.
+
+*/
+
+#include <dcp/subtitle_string.h>
+#include "subrip_decoder.h"
+#include "subrip_content.h"
+
+using std::list;
+using std::vector;
+using boost::shared_ptr;
+
+SubRipDecoder::SubRipDecoder (shared_ptr<const SubRipContent> content)
+	: SubtitleDecoder (content)
+	, SubRip (content)
+	, _next (0)
+{
+
+}
+
+void
+SubRipDecoder::seek (ContentTime time, bool accurate)
+{
+	SubtitleDecoder::seek (time, accurate);
+	
+	_next = 0;
+	while (_next < _subtitles.size() && ContentTime::from_seconds (_subtitles[_next].from.metric().get().all_as_seconds ()) < time) {
+		++_next;
+	}
+}
+
+bool
+SubRipDecoder::pass ()
+{
+	if (_next >= _subtitles.size ()) {
+		return true;
+	}
+
+	/* XXX: we are ignoring positioning specified in the file */
+	
+	list<dcp::SubtitleString> out;
+	for (list<sub::Line>::const_iterator i = _subtitles[_next].lines.begin(); i != _subtitles[_next].lines.end(); ++i) {
+		for (list<sub::Block>::const_iterator j = i->blocks.begin(); j != i->blocks.end(); ++j) {
+			out.push_back (
+				dcp::SubtitleString (
+					"Arial",
+					j->italic,
+					dcp::Color (255, 255, 255),
+					/* .srt files don't specify size, so this is an arbitrary value */
+					48,
+					dcp::Time (rint (_subtitles[_next].from.metric().get().all_as_milliseconds() / 4)),
+					dcp::Time (rint (_subtitles[_next].to.metric().get().all_as_milliseconds() / 4)),
+					i->vertical_position.line.get() * (1.5 / 22) + 0.8,
+					dcp::TOP,
+					j->text,
+					dcp::NONE,
+					dcp::Color (255, 255, 255),
+					0,
+					0
+					)
+				);
+		}
+	}
+
+	text_subtitle (out);
+	++_next;
+	return false;
+}
+
+list<ContentTimePeriod>
+SubRipDecoder::subtitles_during (ContentTimePeriod p, bool starting) const
+{
+	/* XXX: inefficient */
+
+	list<ContentTimePeriod> d;
+
+	for (vector<sub::Subtitle>::const_iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
+
+		ContentTimePeriod t (
+			ContentTime::from_seconds (i->from.metric().get().all_as_seconds()),
+			ContentTime::from_seconds (i->to.metric().get().all_as_seconds())
+			);
+		
+		if ((starting && p.contains (t.from)) || (!starting && p.overlaps (t))) {
+			d.push_back (t);
+		}
+	}
+
+	return d;
+}