2 Copyright (C) 2014-2016 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.
20 #include "dcp_content.h"
21 #include "video_content.h"
22 #include "audio_content.h"
23 #include "dcp_examiner.h"
28 #include "compose.hpp"
29 #include "dcp_decoder.h"
30 #include "subtitle_content.h"
32 #include <dcp/exceptions.h>
33 #include <dcp/reel_picture_asset.h>
35 #include <libxml++/libxml++.h>
36 #include <boost/foreach.hpp>
48 using boost::shared_ptr;
49 using boost::scoped_ptr;
50 using boost::optional;
52 int const DCPContentProperty::CAN_BE_PLAYED = 600;
53 int const DCPContentProperty::REFERENCE_VIDEO = 601;
54 int const DCPContentProperty::REFERENCE_AUDIO = 602;
55 int const DCPContentProperty::REFERENCE_SUBTITLE = 603;
57 DCPContent::DCPContent (shared_ptr<const Film> film, boost::filesystem::path p)
59 , _has_subtitles (false)
62 , _reference_video (false)
63 , _reference_audio (false)
64 , _reference_subtitle (false)
66 video.reset (new VideoContent (this, film));
67 audio.reset (new AudioContent (this, film));
68 subtitle.reset (new SubtitleContent (this, film));
71 set_default_colour_conversion ();
74 DCPContent::DCPContent (shared_ptr<const Film> film, cxml::ConstNodePtr node, int version)
75 : Content (film, node)
77 video.reset (new VideoContent (this, film, node, version));
78 audio.reset (new AudioContent (this, film, node));
81 new AudioStream (node->number_child<int> ("AudioFrameRate"), AudioMapping (node->node_child ("AudioMapping"), version))
84 subtitle.reset (new SubtitleContent (this, film, node, version));
86 _name = node->string_child ("Name");
87 _has_subtitles = node->bool_child ("HasSubtitles");
88 _encrypted = node->bool_child ("Encrypted");
89 if (node->optional_node_child ("KDM")) {
90 _kdm = dcp::EncryptedKDM (node->string_child ("KDM"));
92 _kdm_valid = node->bool_child ("KDMValid");
93 _reference_video = node->optional_bool_child ("ReferenceVideo").get_value_or (false);
94 _reference_audio = node->optional_bool_child ("ReferenceAudio").get_value_or (false);
95 _reference_subtitle = node->optional_bool_child ("ReferenceSubtitle").get_value_or (false);
99 DCPContent::read_directory (boost::filesystem::path p)
101 for (boost::filesystem::directory_iterator i(p); i != boost::filesystem::directory_iterator(); ++i) {
102 if (boost::filesystem::is_regular_file (i->path ())) {
103 _paths.push_back (i->path ());
104 } else if (boost::filesystem::is_directory (i->path ())) {
105 read_directory (i->path ());
111 DCPContent::examine (shared_ptr<Job> job)
113 bool const could_be_played = can_be_played ();
115 job->set_progress_unknown ();
116 Content::examine (job);
118 shared_ptr<DCPExaminer> examiner (new DCPExaminer (shared_from_this ()));
119 video->take_from_examiner (examiner);
120 set_default_colour_conversion ();
123 boost::mutex::scoped_lock lm (_mutex);
125 AudioStreamPtr as (new AudioStream (examiner->audio_frame_rate(), examiner->audio_channels ()));
126 audio->set_stream (as);
127 AudioMapping m = as->mapping ();
128 film()->make_audio_mapping_default (m);
132 signal_changed (AudioContentProperty::STREAMS);
135 boost::mutex::scoped_lock lm (_mutex);
136 _name = examiner->name ();
137 _has_subtitles = examiner->has_subtitles ();
138 _encrypted = examiner->encrypted ();
139 _kdm_valid = examiner->kdm_valid ();
142 if (could_be_played != can_be_played ()) {
143 signal_changed (DCPContentProperty::CAN_BE_PLAYED);
148 DCPContent::summary () const
150 boost::mutex::scoped_lock lm (_mutex);
151 return String::compose (_("%1 [DCP]"), _name);
155 DCPContent::technical_summary () const
157 return Content::technical_summary() + " - "
158 + video->technical_summary() + " - "
159 + audio->technical_summary() + " - ";
163 DCPContent::as_xml (xmlpp::Node* node) const
165 node->add_child("Type")->add_child_text ("DCP");
167 Content::as_xml (node);
168 video->as_xml (node);
169 audio->as_xml (node);
170 node->add_child("AudioFrameRate")->add_child_text (raw_convert<string> (audio->stream()->frame_rate()));
171 audio->stream()->mapping().as_xml (node->add_child("AudioMapping"));
172 subtitle->as_xml (node);
174 boost::mutex::scoped_lock lm (_mutex);
175 node->add_child("Name")->add_child_text (_name);
176 node->add_child("HasSubtitles")->add_child_text (_has_subtitles ? "1" : "0");
177 node->add_child("Encrypted")->add_child_text (_encrypted ? "1" : "0");
179 node->add_child("KDM")->add_child_text (_kdm->as_xml ());
181 node->add_child("KDMValid")->add_child_text (_kdm_valid ? "1" : "0");
182 node->add_child("ReferenceVideo")->add_child_text (_reference_video ? "1" : "0");
183 node->add_child("ReferenceAudio")->add_child_text (_reference_audio ? "1" : "0");
184 node->add_child("ReferenceSubtitle")->add_child_text (_reference_subtitle ? "1" : "0");
188 DCPContent::full_length () const
190 FrameRateChange const frc (video->frame_rate (), film()->video_frame_rate ());
191 return DCPTime::from_frames (llrint (video->length () * frc.factor ()), film()->video_frame_rate ());
195 DCPContent::identifier () const
198 s << Content::identifier() << "_" << video->identifier() << "_" << subtitle->identifier () << " "
199 << (_reference_video ? "1" : "0")
200 << (_reference_subtitle ? "1" : "0");
205 DCPContent::add_kdm (dcp::EncryptedKDM k)
211 DCPContent::can_be_played () const
213 boost::mutex::scoped_lock lm (_mutex);
214 return !_encrypted || _kdm_valid;
217 boost::filesystem::path
218 DCPContent::directory () const
220 optional<size_t> smallest;
221 boost::filesystem::path dir;
222 for (size_t i = 0; i < number_of_paths(); ++i) {
223 boost::filesystem::path const p = path (i).parent_path ();
224 size_t const d = distance (p.begin(), p.end());
225 if (!smallest || d < smallest.get ()) {
234 DCPContent::add_properties (list<UserProperty>& p) const
236 audio->add_properties (p);
240 DCPContent::set_default_colour_conversion ()
242 /* Default to no colour conversion for DCPs */
243 video->unset_colour_conversion ();
247 DCPContent::set_reference_video (bool r)
250 boost::mutex::scoped_lock lm (_mutex);
251 _reference_video = r;
254 signal_changed (DCPContentProperty::REFERENCE_VIDEO);
258 DCPContent::set_reference_audio (bool r)
261 boost::mutex::scoped_lock lm (_mutex);
262 _reference_audio = r;
265 signal_changed (DCPContentProperty::REFERENCE_AUDIO);
269 DCPContent::set_reference_subtitle (bool r)
272 boost::mutex::scoped_lock lm (_mutex);
273 _reference_subtitle = r;
276 signal_changed (DCPContentProperty::REFERENCE_SUBTITLE);
280 DCPContent::reels () const
282 list<DCPTimePeriod> p;
283 scoped_ptr<DCPDecoder> decoder;
285 decoder.reset (new DCPDecoder (shared_from_this(), film()->log(), false));
287 /* Could not load the DCP; guess reels */
288 list<DCPTimePeriod> p;
289 p.push_back (DCPTimePeriod (position(), end()));
293 DCPTime from = position ();
294 BOOST_FOREACH (shared_ptr<dcp::Reel> i, decoder->reels()) {
295 DCPTime const to = from + DCPTime::from_frames (i->main_picture()->duration(), film()->video_frame_rate());
296 p.push_back (DCPTimePeriod (from, to));
304 DCPContent::reel_split_points () const
307 BOOST_FOREACH (DCPTimePeriod i, reels()) {
308 s.push_back (i.from);
315 DCPContent::can_reference (string overlapping, list<string>& why_not) const
317 list<DCPTimePeriod> const fr = film()->reels ();
318 /* fr must contain reels(). It can also contain other reels, but it must at
319 least contain reels().
321 BOOST_FOREACH (DCPTimePeriod i, reels()) {
322 if (find (fr.begin(), fr.end(), i) == fr.end ()) {
323 why_not.push_back (_("Reel lengths in the project differ from those in the DCP; set the reel mode to 'split by video content'."));
328 list<shared_ptr<T> > a = overlaps<T> (film()->content(), position(), end());
329 if (a.size() != 1 || a.front().get() != this) {
330 why_not.push_back (overlapping);
338 DCPContent::can_reference_video (list<string>& why_not) const
340 /* XXX: this needs to be fixed */
345 DCPContent::can_reference_audio (list<string>& why_not) const
347 /* XXX: this needs to be fixed */
352 DCPContent::can_reference_subtitle (list<string>& why_not) const
354 /* XXX: this needs to be fixed */
359 DCPContent::changed (int property)
361 if (property == VideoContentProperty::FRAME_RATE && subtitle) {
362 subtitle->set_video_frame_rate (video->frame_rate ());