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)
61 , _reference_video (false)
62 , _reference_audio (false)
63 , _reference_subtitle (false)
65 video.reset (new VideoContent (this));
66 audio.reset (new AudioContent (this));
69 set_default_colour_conversion ();
72 DCPContent::DCPContent (shared_ptr<const Film> film, cxml::ConstNodePtr node, int version)
73 : Content (film, node)
75 video = VideoContent::from_xml (this, node, version);
76 audio = AudioContent::from_xml (this, node);
77 subtitle = SubtitleContent::from_xml (this, node, version);
82 node->number_child<int> ("AudioFrameRate"),
83 node->number_child<Frame> ("AudioLength"),
84 AudioMapping (node->node_child ("AudioMapping"), version)
89 _name = node->string_child ("Name");
91 _encrypted = node->bool_child ("Encrypted");
92 if (node->optional_node_child ("KDM")) {
93 _kdm = dcp::EncryptedKDM (node->string_child ("KDM"));
95 _kdm_valid = node->bool_child ("KDMValid");
96 _reference_video = node->optional_bool_child ("ReferenceVideo").get_value_or (false);
97 _reference_audio = node->optional_bool_child ("ReferenceAudio").get_value_or (false);
98 _reference_subtitle = node->optional_bool_child ("ReferenceSubtitle").get_value_or (false);
102 DCPContent::read_directory (boost::filesystem::path p)
104 for (boost::filesystem::directory_iterator i(p); i != boost::filesystem::directory_iterator(); ++i) {
105 if (boost::filesystem::is_regular_file (i->path ())) {
106 _paths.push_back (i->path ());
107 } else if (boost::filesystem::is_directory (i->path ())) {
108 read_directory (i->path ());
114 DCPContent::examine (shared_ptr<Job> job)
116 bool const could_be_played = can_be_played ();
118 job->set_progress_unknown ();
119 Content::examine (job);
121 shared_ptr<DCPExaminer> examiner (new DCPExaminer (shared_from_this ()));
122 video->take_from_examiner (examiner);
123 set_default_colour_conversion ();
126 boost::mutex::scoped_lock lm (_mutex);
128 AudioStreamPtr as (new AudioStream (examiner->audio_frame_rate(), examiner->audio_length(), examiner->audio_channels()));
129 audio->set_stream (as);
130 AudioMapping m = as->mapping ();
131 film()->make_audio_mapping_default (m);
135 signal_changed (AudioContentProperty::STREAMS);
138 boost::mutex::scoped_lock lm (_mutex);
139 _name = examiner->name ();
140 if (examiner->has_subtitles ()) {
141 subtitle.reset (new SubtitleContent (this));
143 _encrypted = examiner->encrypted ();
144 _kdm_valid = examiner->kdm_valid ();
147 if (could_be_played != can_be_played ()) {
148 signal_changed (DCPContentProperty::CAN_BE_PLAYED);
153 DCPContent::summary () const
155 boost::mutex::scoped_lock lm (_mutex);
156 return String::compose (_("%1 [DCP]"), _name);
160 DCPContent::technical_summary () const
162 return Content::technical_summary() + " - "
163 + video->technical_summary() + " - "
164 + audio->technical_summary() + " - ";
168 DCPContent::as_xml (xmlpp::Node* node) const
170 node->add_child("Type")->add_child_text ("DCP");
172 Content::as_xml (node);
175 video->as_xml (node);
179 audio->as_xml (node);
180 node->add_child("AudioFrameRate")->add_child_text (raw_convert<string> (audio->stream()->frame_rate()));
181 node->add_child("AudioLength")->add_child_text (raw_convert<string> (audio->stream()->length()));
182 audio->stream()->mapping().as_xml (node->add_child("AudioMapping"));
186 subtitle->as_xml (node);
189 boost::mutex::scoped_lock lm (_mutex);
190 node->add_child("Name")->add_child_text (_name);
191 node->add_child("Encrypted")->add_child_text (_encrypted ? "1" : "0");
193 node->add_child("KDM")->add_child_text (_kdm->as_xml ());
195 node->add_child("KDMValid")->add_child_text (_kdm_valid ? "1" : "0");
196 node->add_child("ReferenceVideo")->add_child_text (_reference_video ? "1" : "0");
197 node->add_child("ReferenceAudio")->add_child_text (_reference_audio ? "1" : "0");
198 node->add_child("ReferenceSubtitle")->add_child_text (_reference_subtitle ? "1" : "0");
202 DCPContent::full_length () const
204 FrameRateChange const frc (active_video_frame_rate (), film()->video_frame_rate ());
205 return DCPTime::from_frames (llrint (video->length () * frc.factor ()), film()->video_frame_rate ());
209 DCPContent::identifier () const
212 s << Content::identifier() << "_" << video->identifier() << "_";
214 s << subtitle->identifier () << " ";
216 s << (_reference_video ? "1" : "0")
217 << (_reference_subtitle ? "1" : "0");
222 DCPContent::add_kdm (dcp::EncryptedKDM k)
228 DCPContent::can_be_played () const
230 boost::mutex::scoped_lock lm (_mutex);
231 return !_encrypted || _kdm_valid;
234 boost::filesystem::path
235 DCPContent::directory () const
237 optional<size_t> smallest;
238 boost::filesystem::path dir;
239 for (size_t i = 0; i < number_of_paths(); ++i) {
240 boost::filesystem::path const p = path (i).parent_path ();
241 size_t const d = distance (p.begin(), p.end());
242 if (!smallest || d < smallest.get ()) {
251 DCPContent::add_properties (list<UserProperty>& p) const
253 audio->add_properties (p);
257 DCPContent::set_default_colour_conversion ()
259 /* Default to no colour conversion for DCPs */
260 video->unset_colour_conversion ();
264 DCPContent::set_reference_video (bool r)
267 boost::mutex::scoped_lock lm (_mutex);
268 _reference_video = r;
271 signal_changed (DCPContentProperty::REFERENCE_VIDEO);
275 DCPContent::set_reference_audio (bool r)
278 boost::mutex::scoped_lock lm (_mutex);
279 _reference_audio = r;
282 signal_changed (DCPContentProperty::REFERENCE_AUDIO);
286 DCPContent::set_reference_subtitle (bool r)
289 boost::mutex::scoped_lock lm (_mutex);
290 _reference_subtitle = r;
293 signal_changed (DCPContentProperty::REFERENCE_SUBTITLE);
297 DCPContent::reels () const
299 list<DCPTimePeriod> p;
300 scoped_ptr<DCPDecoder> decoder;
302 decoder.reset (new DCPDecoder (shared_from_this(), film()->log(), false));
304 /* Could not load the DCP; guess reels */
305 list<DCPTimePeriod> p;
306 p.push_back (DCPTimePeriod (position(), end()));
310 DCPTime from = position ();
311 BOOST_FOREACH (shared_ptr<dcp::Reel> i, decoder->reels()) {
312 DCPTime const to = from + DCPTime::from_frames (i->main_picture()->duration(), film()->video_frame_rate());
313 p.push_back (DCPTimePeriod (from, to));
321 DCPContent::reel_split_points () const
324 BOOST_FOREACH (DCPTimePeriod i, reels()) {
325 s.push_back (i.from);
332 DCPContent::can_reference (string overlapping, list<string>& why_not) const
334 list<DCPTimePeriod> const fr = film()->reels ();
335 /* fr must contain reels(). It can also contain other reels, but it must at
336 least contain reels().
338 BOOST_FOREACH (DCPTimePeriod i, reels()) {
339 if (find (fr.begin(), fr.end(), i) == fr.end ()) {
340 why_not.push_back (_("Reel lengths in the project differ from those in the DCP; set the reel mode to 'split by video content'."));
345 list<shared_ptr<T> > a = overlaps<T> (film()->content(), position(), end());
346 if (a.size() != 1 || a.front().get() != this) {
347 why_not.push_back (overlapping);
355 DCPContent::can_reference_video (list<string>& why_not) const
357 /* XXX: this needs to be fixed */
362 DCPContent::can_reference_audio (list<string>& why_not) const
364 /* XXX: this needs to be fixed */
369 DCPContent::can_reference_subtitle (list<string>& why_not) const
371 /* XXX: this needs to be fixed */