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, film));
66 audio.reset (new AudioContent (this, film));
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, film, node, version);
76 audio = AudioContent::from_xml (this, film, node);
77 subtitle = SubtitleContent::from_xml (this, film, node, version);
81 new AudioStream (node->number_child<int> ("AudioFrameRate"), AudioMapping (node->node_child ("AudioMapping"), version))
85 _name = node->string_child ("Name");
87 _encrypted = node->bool_child ("Encrypted");
88 if (node->optional_node_child ("KDM")) {
89 _kdm = dcp::EncryptedKDM (node->string_child ("KDM"));
91 _kdm_valid = node->bool_child ("KDMValid");
92 _reference_video = node->optional_bool_child ("ReferenceVideo").get_value_or (false);
93 _reference_audio = node->optional_bool_child ("ReferenceAudio").get_value_or (false);
94 _reference_subtitle = node->optional_bool_child ("ReferenceSubtitle").get_value_or (false);
98 DCPContent::read_directory (boost::filesystem::path p)
100 for (boost::filesystem::directory_iterator i(p); i != boost::filesystem::directory_iterator(); ++i) {
101 if (boost::filesystem::is_regular_file (i->path ())) {
102 _paths.push_back (i->path ());
103 } else if (boost::filesystem::is_directory (i->path ())) {
104 read_directory (i->path ());
110 DCPContent::examine (shared_ptr<Job> job)
112 bool const could_be_played = can_be_played ();
114 job->set_progress_unknown ();
115 Content::examine (job);
117 shared_ptr<DCPExaminer> examiner (new DCPExaminer (shared_from_this ()));
118 video->take_from_examiner (examiner);
119 set_default_colour_conversion ();
122 boost::mutex::scoped_lock lm (_mutex);
124 AudioStreamPtr as (new AudioStream (examiner->audio_frame_rate(), examiner->audio_channels ()));
125 audio->set_stream (as);
126 AudioMapping m = as->mapping ();
127 film()->make_audio_mapping_default (m);
131 signal_changed (AudioContentProperty::STREAMS);
134 boost::mutex::scoped_lock lm (_mutex);
135 _name = examiner->name ();
136 if (examiner->has_subtitles ()) {
137 subtitle.reset (new SubtitleContent (this, film()));
139 _encrypted = examiner->encrypted ();
140 _kdm_valid = examiner->kdm_valid ();
143 if (could_be_played != can_be_played ()) {
144 signal_changed (DCPContentProperty::CAN_BE_PLAYED);
149 DCPContent::summary () const
151 boost::mutex::scoped_lock lm (_mutex);
152 return String::compose (_("%1 [DCP]"), _name);
156 DCPContent::technical_summary () const
158 return Content::technical_summary() + " - "
159 + video->technical_summary() + " - "
160 + audio->technical_summary() + " - ";
164 DCPContent::as_xml (xmlpp::Node* node) const
166 node->add_child("Type")->add_child_text ("DCP");
168 Content::as_xml (node);
171 video->as_xml (node);
175 audio->as_xml (node);
176 node->add_child("AudioFrameRate")->add_child_text (raw_convert<string> (audio->stream()->frame_rate()));
177 audio->stream()->mapping().as_xml (node->add_child("AudioMapping"));
181 subtitle->as_xml (node);
184 boost::mutex::scoped_lock lm (_mutex);
185 node->add_child("Name")->add_child_text (_name);
186 node->add_child("Encrypted")->add_child_text (_encrypted ? "1" : "0");
188 node->add_child("KDM")->add_child_text (_kdm->as_xml ());
190 node->add_child("KDMValid")->add_child_text (_kdm_valid ? "1" : "0");
191 node->add_child("ReferenceVideo")->add_child_text (_reference_video ? "1" : "0");
192 node->add_child("ReferenceAudio")->add_child_text (_reference_audio ? "1" : "0");
193 node->add_child("ReferenceSubtitle")->add_child_text (_reference_subtitle ? "1" : "0");
197 DCPContent::full_length () const
199 FrameRateChange const frc (active_video_frame_rate (), film()->video_frame_rate ());
200 return DCPTime::from_frames (llrint (video->length () * frc.factor ()), film()->video_frame_rate ());
204 DCPContent::identifier () const
207 s << Content::identifier() << "_" << video->identifier() << "_";
209 s << subtitle->identifier () << " ";
211 s << (_reference_video ? "1" : "0")
212 << (_reference_subtitle ? "1" : "0");
217 DCPContent::add_kdm (dcp::EncryptedKDM k)
223 DCPContent::can_be_played () const
225 boost::mutex::scoped_lock lm (_mutex);
226 return !_encrypted || _kdm_valid;
229 boost::filesystem::path
230 DCPContent::directory () const
232 optional<size_t> smallest;
233 boost::filesystem::path dir;
234 for (size_t i = 0; i < number_of_paths(); ++i) {
235 boost::filesystem::path const p = path (i).parent_path ();
236 size_t const d = distance (p.begin(), p.end());
237 if (!smallest || d < smallest.get ()) {
246 DCPContent::add_properties (list<UserProperty>& p) const
248 audio->add_properties (p);
252 DCPContent::set_default_colour_conversion ()
254 /* Default to no colour conversion for DCPs */
255 video->unset_colour_conversion ();
259 DCPContent::set_reference_video (bool r)
262 boost::mutex::scoped_lock lm (_mutex);
263 _reference_video = r;
266 signal_changed (DCPContentProperty::REFERENCE_VIDEO);
270 DCPContent::set_reference_audio (bool r)
273 boost::mutex::scoped_lock lm (_mutex);
274 _reference_audio = r;
277 signal_changed (DCPContentProperty::REFERENCE_AUDIO);
281 DCPContent::set_reference_subtitle (bool r)
284 boost::mutex::scoped_lock lm (_mutex);
285 _reference_subtitle = r;
288 signal_changed (DCPContentProperty::REFERENCE_SUBTITLE);
292 DCPContent::reels () const
294 list<DCPTimePeriod> p;
295 scoped_ptr<DCPDecoder> decoder;
297 decoder.reset (new DCPDecoder (shared_from_this(), film()->log(), false));
299 /* Could not load the DCP; guess reels */
300 list<DCPTimePeriod> p;
301 p.push_back (DCPTimePeriod (position(), end()));
305 DCPTime from = position ();
306 BOOST_FOREACH (shared_ptr<dcp::Reel> i, decoder->reels()) {
307 DCPTime const to = from + DCPTime::from_frames (i->main_picture()->duration(), film()->video_frame_rate());
308 p.push_back (DCPTimePeriod (from, to));
316 DCPContent::reel_split_points () const
319 BOOST_FOREACH (DCPTimePeriod i, reels()) {
320 s.push_back (i.from);
327 DCPContent::can_reference (string overlapping, list<string>& why_not) const
329 list<DCPTimePeriod> const fr = film()->reels ();
330 /* fr must contain reels(). It can also contain other reels, but it must at
331 least contain reels().
333 BOOST_FOREACH (DCPTimePeriod i, reels()) {
334 if (find (fr.begin(), fr.end(), i) == fr.end ()) {
335 why_not.push_back (_("Reel lengths in the project differ from those in the DCP; set the reel mode to 'split by video content'."));
340 list<shared_ptr<T> > a = overlaps<T> (film()->content(), position(), end());
341 if (a.size() != 1 || a.front().get() != this) {
342 why_not.push_back (overlapping);
350 DCPContent::can_reference_video (list<string>& why_not) const
352 /* XXX: this needs to be fixed */
357 DCPContent::can_reference_audio (list<string>& why_not) const
359 /* XXX: this needs to be fixed */
364 DCPContent::can_reference_subtitle (list<string>& why_not) const
366 /* XXX: this needs to be fixed */