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;
51 using boost::function;
53 int const DCPContentProperty::CAN_BE_PLAYED = 600;
54 int const DCPContentProperty::REFERENCE_VIDEO = 601;
55 int const DCPContentProperty::REFERENCE_AUDIO = 602;
56 int const DCPContentProperty::REFERENCE_SUBTITLE = 603;
58 DCPContent::DCPContent (shared_ptr<const Film> film, boost::filesystem::path p)
62 , _reference_video (false)
63 , _reference_audio (false)
64 , _reference_subtitle (false)
66 video.reset (new VideoContent (this));
67 audio.reset (new AudioContent (this));
70 set_default_colour_conversion ();
73 DCPContent::DCPContent (shared_ptr<const Film> film, cxml::ConstNodePtr node, int version)
74 : Content (film, node)
76 video = VideoContent::from_xml (this, node, version);
77 audio = AudioContent::from_xml (this, node);
78 subtitle = SubtitleContent::from_xml (this, node, version);
83 node->number_child<int> ("AudioFrameRate"),
84 node->number_child<Frame> ("AudioLength"),
85 AudioMapping (node->node_child ("AudioMapping"), version)
90 _name = node->string_child ("Name");
92 _encrypted = node->bool_child ("Encrypted");
93 if (node->optional_node_child ("KDM")) {
94 _kdm = dcp::EncryptedKDM (node->string_child ("KDM"));
96 _kdm_valid = node->bool_child ("KDMValid");
97 _reference_video = node->optional_bool_child ("ReferenceVideo").get_value_or (false);
98 _reference_audio = node->optional_bool_child ("ReferenceAudio").get_value_or (false);
99 _reference_subtitle = node->optional_bool_child ("ReferenceSubtitle").get_value_or (false);
103 DCPContent::read_directory (boost::filesystem::path p)
105 for (boost::filesystem::directory_iterator i(p); i != boost::filesystem::directory_iterator(); ++i) {
106 if (boost::filesystem::is_regular_file (i->path ())) {
107 _paths.push_back (i->path ());
108 } else if (boost::filesystem::is_directory (i->path ())) {
109 read_directory (i->path ());
115 DCPContent::examine (shared_ptr<Job> job)
117 bool const could_be_played = can_be_played ();
119 job->set_progress_unknown ();
120 Content::examine (job);
122 shared_ptr<DCPExaminer> examiner (new DCPExaminer (shared_from_this ()));
123 video->take_from_examiner (examiner);
124 set_default_colour_conversion ();
127 boost::mutex::scoped_lock lm (_mutex);
129 AudioStreamPtr as (new AudioStream (examiner->audio_frame_rate(), examiner->audio_length(), examiner->audio_channels()));
130 audio->set_stream (as);
131 AudioMapping m = as->mapping ();
132 film()->make_audio_mapping_default (m);
136 signal_changed (AudioContentProperty::STREAMS);
139 boost::mutex::scoped_lock lm (_mutex);
140 _name = examiner->name ();
141 if (examiner->has_subtitles ()) {
142 subtitle.reset (new SubtitleContent (this));
144 _encrypted = examiner->encrypted ();
145 _kdm_valid = examiner->kdm_valid ();
148 if (could_be_played != can_be_played ()) {
149 signal_changed (DCPContentProperty::CAN_BE_PLAYED);
154 DCPContent::summary () const
156 boost::mutex::scoped_lock lm (_mutex);
157 return String::compose (_("%1 [DCP]"), _name);
161 DCPContent::technical_summary () const
163 return Content::technical_summary() + " - "
164 + video->technical_summary() + " - "
165 + audio->technical_summary() + " - ";
169 DCPContent::as_xml (xmlpp::Node* node) const
171 node->add_child("Type")->add_child_text ("DCP");
173 Content::as_xml (node);
176 video->as_xml (node);
180 audio->as_xml (node);
181 node->add_child("AudioFrameRate")->add_child_text (raw_convert<string> (audio->stream()->frame_rate()));
182 node->add_child("AudioLength")->add_child_text (raw_convert<string> (audio->stream()->length()));
183 audio->stream()->mapping().as_xml (node->add_child("AudioMapping"));
187 subtitle->as_xml (node);
190 boost::mutex::scoped_lock lm (_mutex);
191 node->add_child("Name")->add_child_text (_name);
192 node->add_child("Encrypted")->add_child_text (_encrypted ? "1" : "0");
194 node->add_child("KDM")->add_child_text (_kdm->as_xml ());
196 node->add_child("KDMValid")->add_child_text (_kdm_valid ? "1" : "0");
197 node->add_child("ReferenceVideo")->add_child_text (_reference_video ? "1" : "0");
198 node->add_child("ReferenceAudio")->add_child_text (_reference_audio ? "1" : "0");
199 node->add_child("ReferenceSubtitle")->add_child_text (_reference_subtitle ? "1" : "0");
203 DCPContent::full_length () const
205 FrameRateChange const frc (active_video_frame_rate (), film()->video_frame_rate ());
206 return DCPTime::from_frames (llrint (video->length () * frc.factor ()), film()->video_frame_rate ());
210 DCPContent::identifier () const
213 s << Content::identifier() << "_" << video->identifier() << "_";
215 s << subtitle->identifier () << " ";
217 s << (_reference_video ? "1" : "0")
218 << (_reference_subtitle ? "1" : "0");
223 DCPContent::add_kdm (dcp::EncryptedKDM k)
229 DCPContent::can_be_played () const
231 boost::mutex::scoped_lock lm (_mutex);
232 return !_encrypted || _kdm_valid;
235 boost::filesystem::path
236 DCPContent::directory () const
238 optional<size_t> smallest;
239 boost::filesystem::path dir;
240 for (size_t i = 0; i < number_of_paths(); ++i) {
241 boost::filesystem::path const p = path (i).parent_path ();
242 size_t const d = distance (p.begin(), p.end());
243 if (!smallest || d < smallest.get ()) {
252 DCPContent::add_properties (list<UserProperty>& p) const
254 audio->add_properties (p);
258 DCPContent::set_default_colour_conversion ()
260 /* Default to no colour conversion for DCPs */
261 video->unset_colour_conversion ();
265 DCPContent::set_reference_video (bool r)
268 boost::mutex::scoped_lock lm (_mutex);
269 _reference_video = r;
272 signal_changed (DCPContentProperty::REFERENCE_VIDEO);
276 DCPContent::set_reference_audio (bool r)
279 boost::mutex::scoped_lock lm (_mutex);
280 _reference_audio = r;
283 signal_changed (DCPContentProperty::REFERENCE_AUDIO);
287 DCPContent::set_reference_subtitle (bool r)
290 boost::mutex::scoped_lock lm (_mutex);
291 _reference_subtitle = r;
294 signal_changed (DCPContentProperty::REFERENCE_SUBTITLE);
298 DCPContent::reels () const
300 list<DCPTimePeriod> p;
301 scoped_ptr<DCPDecoder> decoder;
303 decoder.reset (new DCPDecoder (shared_from_this(), film()->log(), false));
305 /* Could not load the DCP; guess reels */
306 list<DCPTimePeriod> p;
307 p.push_back (DCPTimePeriod (position(), end()));
311 DCPTime from = position ();
312 BOOST_FOREACH (shared_ptr<dcp::Reel> i, decoder->reels()) {
313 DCPTime const to = from + DCPTime::from_frames (i->main_picture()->duration(), film()->video_frame_rate());
314 p.push_back (DCPTimePeriod (from, to));
322 DCPContent::reel_split_points () const
325 BOOST_FOREACH (DCPTimePeriod i, reels()) {
326 s.push_back (i.from);
332 DCPContent::can_reference (function<shared_ptr<ContentPart> (shared_ptr<const Content>)> part, 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 ContentList a = overlaps (film()->content(), part, 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 return can_reference (bind (&Content::video, _1), _("There is other video content overlapping this DCP; remove it."), why_not);
361 DCPContent::can_reference_audio (list<string>& why_not) const
363 DCPDecoder decoder (shared_from_this(), film()->log(), false);
364 BOOST_FOREACH (shared_ptr<dcp::Reel> i, decoder.reels()) {
365 if (!i->main_sound()) {
366 why_not.push_back (_("The DCP does not have sound in all reels."));
371 return can_reference (bind (&Content::audio, _1), _("There is other audio content overlapping this DCP; remove it."), why_not);
375 DCPContent::can_reference_subtitle (list<string>& why_not) const
377 DCPDecoder decoder (shared_from_this(), film()->log(), false);
378 BOOST_FOREACH (shared_ptr<dcp::Reel> i, decoder.reels()) {
379 if (!i->main_subtitle()) {
380 why_not.push_back (_("The DCP does not have subtitles in all reels."));
385 return can_reference (bind (&Content::subtitle, _1), _("There is other subtitle content overlapping this DCP; remove it."), why_not);