2 Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 #include "reel_writer.h"
28 #include "compose.hpp"
29 #include "audio_buffers.h"
30 #include <dcp/mono_picture_asset.h>
31 #include <dcp/stereo_picture_asset.h>
32 #include <dcp/sound_asset.h>
33 #include <dcp/sound_asset_writer.h>
35 #include <dcp/reel_mono_picture_asset.h>
36 #include <dcp/reel_stereo_picture_asset.h>
37 #include <dcp/reel_sound_asset.h>
38 #include <dcp/reel_subtitle_asset.h>
41 #include <dcp/certificate_chain.h>
42 #include <dcp/interop_subtitle_asset.h>
43 #include <dcp/smpte_subtitle_asset.h>
44 #include <boost/foreach.hpp>
48 #define LOG_GENERAL(...) _film->log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_GENERAL);
49 #define LOG_GENERAL_NC(...) _film->log()->log (__VA_ARGS__, LogEntry::TYPE_GENERAL);
50 #define LOG_WARNING_NC(...) _film->log()->log (__VA_ARGS__, LogEntry::TYPE_WARNING);
51 #define LOG_ERROR(...) _film->log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_ERROR);
56 using boost::shared_ptr;
57 using boost::optional;
58 using boost::dynamic_pointer_cast;
61 int const ReelWriter::_info_size = 48;
63 ReelWriter::ReelWriter (
64 shared_ptr<const Film> film, DCPTimePeriod period, shared_ptr<Job> job, int reel_index, int reel_count, optional<string> content_summary
68 , _first_nonexistant_frame (0)
69 , _last_written_video_frame (-1)
70 , _last_written_eyes (EYES_RIGHT)
71 , _total_written_audio_frames (0)
72 , _reel_index (reel_index)
73 , _reel_count (reel_count)
74 , _content_summary (content_summary)
76 /* Create our picture asset in a subdirectory, named according to those
77 film's parameters which affect the video output. We will hard-link
78 it into the DCP later.
81 if (_film->three_d ()) {
82 _picture_asset.reset (new dcp::StereoPictureAsset (dcp::Fraction (_film->video_frame_rate (), 1)));
84 _picture_asset.reset (new dcp::MonoPictureAsset (dcp::Fraction (_film->video_frame_rate (), 1)));
87 _picture_asset->set_size (_film->frame_size ());
89 if (_film->encrypted ()) {
90 _picture_asset->set_key (_film->key ());
93 _picture_asset->set_file (
94 _film->internal_video_asset_dir() / _film->internal_video_asset_filename(_period)
97 job->sub (_("Checking existing image data"));
98 check_existing_picture_asset ();
100 _picture_asset_writer = _picture_asset->start_write (
101 _film->internal_video_asset_dir() / _film->internal_video_asset_filename(_period),
102 _film->interop() ? dcp::INTEROP : dcp::SMPTE,
103 _first_nonexistant_frame > 0
106 if (_film->audio_channels ()) {
108 new dcp::SoundAsset (dcp::Fraction (_film->video_frame_rate(), 1), _film->audio_frame_rate (), _film->audio_channels ())
111 if (_film->encrypted ()) {
112 _sound_asset->set_key (_film->key ());
115 DCPOMATIC_ASSERT (_film->directory());
117 /* Write the sound asset into the film directory so that we leave the creation
118 of the DCP directory until the last minute.
120 _sound_asset_writer = _sound_asset->start_write (
121 _film->directory().get() / audio_asset_filename (_sound_asset, _reel_index, _reel_count, _content_summary),
122 _film->interop() ? dcp::INTEROP : dcp::SMPTE,
123 /* XXX: this could well be wrong, but it's better than nothing; the whole channel assignment
126 dcp::CHANNEL_ASSIGNMENT_71
131 /** @param frame reel-relative frame */
133 ReelWriter::write_frame_info (Frame frame, Eyes eyes, dcp::FrameInfo info) const
136 boost::filesystem::path info_file = _film->info_file (_period);
137 bool const read = boost::filesystem::exists (info_file);
139 file = fopen_boost (info_file, "r+b");
141 file = fopen_boost (info_file, "wb");
144 throw OpenFileError (info_file, errno, read);
146 dcpomatic_fseek (file, frame_info_position (frame, eyes), SEEK_SET);
147 fwrite (&info.offset, sizeof (info.offset), 1, file);
148 fwrite (&info.size, sizeof (info.size), 1, file);
149 fwrite (info.hash.c_str(), 1, info.hash.size(), file);
154 ReelWriter::read_frame_info (FILE* file, Frame frame, Eyes eyes) const
157 dcpomatic_fseek (file, frame_info_position (frame, eyes), SEEK_SET);
158 fread (&info.offset, sizeof (info.offset), 1, file);
159 fread (&info.size, sizeof (info.size), 1, file);
161 char hash_buffer[33];
162 fread (hash_buffer, 1, 32, file);
163 hash_buffer[32] = '\0';
164 info.hash = hash_buffer;
170 ReelWriter::frame_info_position (Frame frame, Eyes eyes) const
174 return frame * _info_size;
176 return frame * _info_size * 2;
178 return frame * _info_size * 2 + _info_size;
180 DCPOMATIC_ASSERT (false);
183 DCPOMATIC_ASSERT (false);
187 ReelWriter::check_existing_picture_asset ()
189 /* Try to open the existing asset */
190 DCPOMATIC_ASSERT (_picture_asset->file());
191 FILE* asset_file = fopen_boost (_picture_asset->file().get(), "rb");
193 LOG_GENERAL ("Could not open existing asset at %1 (errno=%2)", _picture_asset->file()->string(), errno);
196 LOG_GENERAL ("Opened existing asset at %1", _picture_asset->file()->string());
199 /* Offset of the last dcp::FrameInfo in the info file */
200 int const n = (boost::filesystem::file_size (_film->info_file(_period)) / _info_size) - 1;
201 LOG_GENERAL ("The last FI is %1; info file is %2, info size %3", n, boost::filesystem::file_size (_film->info_file(_period)), _info_size);
203 FILE* info_file = fopen_boost (_film->info_file(_period), "rb");
205 LOG_GENERAL_NC ("Could not open film info file");
210 if (_film->three_d ()) {
211 /* Start looking at the last left frame */
212 _first_nonexistant_frame = n / 2;
214 _first_nonexistant_frame = n;
217 while (!existing_picture_frame_ok(asset_file, info_file) && _first_nonexistant_frame > 0) {
218 --_first_nonexistant_frame;
221 if (!_film->three_d() && _first_nonexistant_frame > 0) {
222 /* If we are doing 3D we might have found a good L frame with no R, so only
223 do this if we're in 2D and we've just found a good B(oth) frame.
225 ++_first_nonexistant_frame;
228 LOG_GENERAL ("Proceeding with first nonexistant frame %1", _first_nonexistant_frame);
235 ReelWriter::write (optional<Data> encoded, Frame frame, Eyes eyes)
237 dcp::FrameInfo fin = _picture_asset_writer->write (encoded->data().get (), encoded->size());
238 write_frame_info (frame, eyes, fin);
239 _last_written[eyes] = encoded;
240 _last_written_video_frame = frame;
241 _last_written_eyes = eyes;
245 ReelWriter::fake_write (Frame frame, Eyes eyes, int size)
247 _picture_asset_writer->fake_write (size);
248 _last_written_video_frame = frame;
249 _last_written_eyes = eyes;
253 ReelWriter::repeat_write (Frame frame, Eyes eyes)
255 dcp::FrameInfo fin = _picture_asset_writer->write (
256 _last_written[eyes]->data().get(),
257 _last_written[eyes]->size()
259 write_frame_info (frame, eyes, fin);
260 _last_written_video_frame = frame;
261 _last_written_eyes = eyes;
265 ReelWriter::finish ()
267 if (!_picture_asset_writer->finalize ()) {
268 /* Nothing was written to the picture asset */
269 _picture_asset.reset ();
272 if (_sound_asset_writer && !_sound_asset_writer->finalize ()) {
273 /* Nothing was written to the sound asset */
274 _sound_asset.reset ();
277 /* Hard-link any video asset file into the DCP */
278 if (_picture_asset) {
279 DCPOMATIC_ASSERT (_picture_asset->file());
280 boost::filesystem::path video_from = _picture_asset->file().get();
281 boost::filesystem::path video_to;
282 video_to /= _film->dir (_film->dcp_name());
283 video_to /= video_asset_filename (_picture_asset, _reel_index, _reel_count, _content_summary);
285 boost::system::error_code ec;
286 boost::filesystem::create_hard_link (video_from, video_to, ec);
288 LOG_WARNING_NC ("Hard-link failed; copying instead");
289 boost::filesystem::copy_file (video_from, video_to, ec);
291 LOG_ERROR ("Failed to copy video file from %1 to %2 (%3)", video_from.string(), video_to.string(), ec.message ());
292 throw FileError (ec.message(), video_from);
296 _picture_asset->set_file (video_to);
299 /* Move the audio asset into the DCP */
301 boost::filesystem::path audio_to;
302 audio_to /= _film->dir (_film->dcp_name ());
303 string const aaf = audio_asset_filename (_sound_asset, _reel_index, _reel_count, _content_summary);
306 boost::system::error_code ec;
307 boost::filesystem::rename (_film->file (aaf), audio_to, ec);
310 String::compose (_("could not move audio asset into the DCP (%1)"), ec.value ()), aaf
314 _sound_asset->set_file (audio_to);
318 shared_ptr<dcp::Reel>
319 ReelWriter::create_reel (list<ReferencedReelAsset> const & refs, list<shared_ptr<Font> > const & fonts)
321 shared_ptr<dcp::Reel> reel (new dcp::Reel ());
323 shared_ptr<dcp::ReelPictureAsset> reel_picture_asset;
325 if (_picture_asset) {
326 /* We have made a picture asset of our own. Put it into the reel */
327 shared_ptr<dcp::MonoPictureAsset> mono = dynamic_pointer_cast<dcp::MonoPictureAsset> (_picture_asset);
329 reel_picture_asset.reset (new dcp::ReelMonoPictureAsset (mono, 0));
332 shared_ptr<dcp::StereoPictureAsset> stereo = dynamic_pointer_cast<dcp::StereoPictureAsset> (_picture_asset);
334 reel_picture_asset.reset (new dcp::ReelStereoPictureAsset (stereo, 0));
337 /* We don't have a picture asset of our own; hopefully we have one to reference */
338 BOOST_FOREACH (ReferencedReelAsset j, refs) {
339 shared_ptr<dcp::ReelPictureAsset> k = dynamic_pointer_cast<dcp::ReelPictureAsset> (j.asset);
340 if (k && j.period == _period) {
341 reel_picture_asset = k;
346 DCPOMATIC_ASSERT (reel_picture_asset);
347 reel->add (reel_picture_asset);
349 /* If we have a hash for this asset in the CPL, assume that it is correct */
350 if (reel_picture_asset->hash()) {
351 reel_picture_asset->asset_ref()->set_hash (reel_picture_asset->hash().get());
355 /* We have made a sound asset of our own. Put it into the reel */
356 reel->add (shared_ptr<dcp::ReelSoundAsset> (new dcp::ReelSoundAsset (_sound_asset, 0)));
358 /* We don't have a sound asset of our own; hopefully we have one to reference */
359 BOOST_FOREACH (ReferencedReelAsset j, refs) {
360 shared_ptr<dcp::ReelSoundAsset> k = dynamic_pointer_cast<dcp::ReelSoundAsset> (j.asset);
361 if (k && j.period == _period) {
363 /* If we have a hash for this asset in the CPL, assume that it is correct */
365 k->asset_ref()->set_hash (k->hash().get());
371 if (_subtitle_asset) {
373 boost::filesystem::path liberation_normal;
375 liberation_normal = shared_path() / "LiberationSans-Regular.ttf";
376 if (!boost::filesystem::exists (liberation_normal)) {
377 /* Hack for unit tests */
378 liberation_normal = shared_path() / "fonts" / "LiberationSans-Regular.ttf";
380 } catch (boost::filesystem::filesystem_error& e) {
384 if (!boost::filesystem::exists(liberation_normal)) {
385 liberation_normal = "/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf";
388 /* Add all the fonts to the subtitle content */
389 BOOST_FOREACH (shared_ptr<Font> j, fonts) {
390 _subtitle_asset->add_font (j->id(), j->file(FontFiles::NORMAL).get_value_or(liberation_normal));
393 if (dynamic_pointer_cast<dcp::InteropSubtitleAsset> (_subtitle_asset)) {
394 boost::filesystem::path directory = _film->dir (_film->dcp_name ()) / _subtitle_asset->id ();
395 boost::filesystem::create_directories (directory);
396 _subtitle_asset->write (directory / ("sub_" + _subtitle_asset->id() + ".xml"));
399 /* All our assets should be the same length; use the picture asset length here
400 as a reference to set the subtitle one.
402 dynamic_pointer_cast<dcp::SMPTESubtitleAsset>(_subtitle_asset)->set_intrinsic_duration (
403 reel_picture_asset->intrinsic_duration ()
406 _subtitle_asset->write (
407 _film->dir (_film->dcp_name ()) / ("sub_" + _subtitle_asset->id() + ".mxf")
411 reel->add (shared_ptr<dcp::ReelSubtitleAsset> (
412 new dcp::ReelSubtitleAsset (
414 dcp::Fraction (_film->video_frame_rate(), 1),
415 reel_picture_asset->intrinsic_duration (),
420 /* We don't have a subtitle asset of our own; hopefully we have one to reference */
421 BOOST_FOREACH (ReferencedReelAsset j, refs) {
422 shared_ptr<dcp::ReelSubtitleAsset> k = dynamic_pointer_cast<dcp::ReelSubtitleAsset> (j.asset);
423 if (k && j.period == _period) {
425 /* If we have a hash for this asset in the CPL, assume that it is correct */
427 k->asset_ref()->set_hash (k->hash().get());
437 ReelWriter::calculate_digests (boost::function<void (float)> set_progress)
439 if (_picture_asset) {
440 _picture_asset->hash (set_progress);
444 _sound_asset->hash (set_progress);
449 ReelWriter::start () const
451 return _period.from.frames_floor (_film->video_frame_rate());
456 ReelWriter::write (shared_ptr<const AudioBuffers> audio)
458 if (!_sound_asset_writer) {
463 _sound_asset_writer->write (audio->data(), audio->frames());
466 ++_total_written_audio_frames;
470 ReelWriter::write (PlayerSubtitles subs)
472 if (!_subtitle_asset) {
473 string lang = _film->subtitle_language ();
477 if (_film->interop ()) {
478 shared_ptr<dcp::InteropSubtitleAsset> s (new dcp::InteropSubtitleAsset ());
479 s->set_movie_title (_film->name ());
480 s->set_language (lang);
481 s->set_reel_number ("1");
484 shared_ptr<dcp::SMPTESubtitleAsset> s (new dcp::SMPTESubtitleAsset ());
485 s->set_content_title_text (_film->name ());
486 s->set_language (lang);
487 s->set_edit_rate (dcp::Fraction (_film->video_frame_rate (), 1));
488 s->set_reel_number (1);
489 s->set_time_code_rate (_film->video_frame_rate ());
490 s->set_start_time (dcp::Time ());
491 if (_film->encrypted ()) {
492 s->set_key (_film->key ());
498 BOOST_FOREACH (SubtitleString i, subs.text) {
499 i.set_in (i.in() - dcp::Time (_period.from.seconds(), i.in().tcr));
500 i.set_out (i.out() - dcp::Time (_period.from.seconds(), i.out().tcr));
501 _subtitle_asset->add (i);
506 ReelWriter::existing_picture_frame_ok (FILE* asset_file, FILE* info_file) const
508 LOG_GENERAL ("Checking existing picture frame %1", _first_nonexistant_frame);
510 /* Read the data from the info file; for 3D we just check the left
511 frames until we find a good one.
513 dcp::FrameInfo const info = read_frame_info (info_file, _first_nonexistant_frame, _film->three_d () ? EYES_LEFT : EYES_BOTH);
517 /* Read the data from the asset and hash it */
518 dcpomatic_fseek (asset_file, info.offset, SEEK_SET);
519 Data data (info.size);
520 size_t const read = fread (data.data().get(), 1, data.size(), asset_file);
521 LOG_GENERAL ("Read %1 bytes of asset data; wanted %2", read, info.size);
522 if (read != static_cast<size_t> (data.size ())) {
523 LOG_GENERAL ("Existing frame %1 is incomplete", _first_nonexistant_frame);
527 digester.add (data.data().get(), data.size());
528 LOG_GENERAL ("Hash %1 vs %2", digester.get(), info.hash);
529 if (digester.get() != info.hash) {
530 LOG_GENERAL ("Existing frame %1 failed hash check", _first_nonexistant_frame);