2 Copyright (C) 2014-2015 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include "dcp_subtitle_content.h"
22 #include "raw_convert.h"
24 #include <dcp/interop_subtitle_asset.h>
25 #include <dcp/smpte_subtitle_asset.h>
26 #include <dcp/interop_load_font_node.h>
27 #include <libxml++/libxml++.h>
28 #include <boost/foreach.hpp>
34 using boost::shared_ptr;
35 using boost::dynamic_pointer_cast;
37 DCPSubtitleContent::DCPSubtitleContent (shared_ptr<const Film> film, boost::filesystem::path path)
38 : Content (film, path)
39 , SubtitleContent (film, path)
44 DCPSubtitleContent::DCPSubtitleContent (shared_ptr<const Film> film, cxml::ConstNodePtr node, int version)
45 : Content (film, node)
46 , SubtitleContent (film, node, version)
47 , _length (node->number_child<ContentTime::Type> ("Length"))
48 , _frame_rate (node->optional_number_child<int>("SubtitleFrameRate"))
54 DCPSubtitleContent::examine (shared_ptr<Job> job)
56 Content::examine (job);
58 shared_ptr<dcp::SubtitleAsset> sc = load (path (0));
60 /* Default to turning these subtitles on */
61 set_use_subtitles (true);
63 boost::mutex::scoped_lock lm (_mutex);
65 shared_ptr<dcp::InteropSubtitleAsset> iop = dynamic_pointer_cast<dcp::InteropSubtitleAsset> (sc);
67 _subtitle_language = iop->language ();
69 shared_ptr<dcp::SMPTESubtitleAsset> smpte = dynamic_pointer_cast<dcp::SMPTESubtitleAsset> (sc);
71 _subtitle_language = smpte->language().get_value_or ("");
72 _frame_rate = smpte->edit_rate().numerator;
75 _length = ContentTime::from_seconds (sc->latest_subtitle_out().as_seconds ());
77 BOOST_FOREACH (shared_ptr<dcp::LoadFontNode> i, sc->load_font_nodes ()) {
78 add_font (shared_ptr<Font> (new Font (i->id)));
83 DCPSubtitleContent::full_length () const
85 FrameRateChange const frc (subtitle_video_frame_rate(), film()->video_frame_rate());
86 return DCPTime (_length, frc);
90 DCPSubtitleContent::summary () const
92 return path_summary() + " " + _("[subtitles]");
96 DCPSubtitleContent::technical_summary () const
98 return Content::technical_summary() + " - " + _("DCP XML subtitles");
102 DCPSubtitleContent::as_xml (xmlpp::Node* node) const
104 node->add_child("Type")->add_child_text ("DCPSubtitle");
105 Content::as_xml (node);
106 SubtitleContent::as_xml (node);
107 node->add_child("Length")->add_child_text (raw_convert<string> (_length.get ()));
111 DCPSubtitleContent::set_subtitle_video_frame_rate (int r)
114 boost::mutex::scoped_lock lm (_mutex);
118 signal_changed (SubtitleContentProperty::SUBTITLE_VIDEO_FRAME_RATE);
122 DCPSubtitleContent::subtitle_video_frame_rate () const
125 boost::mutex::scoped_lock lm (_mutex);
127 return _frame_rate.get ();
131 /* No frame rate specified, so assume this content has been
132 prepared for any concurrent video content.
134 return film()->active_frame_rate_change(position()).source;