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 /* Write the sound asset into the film directory so that we leave the creation
116 of the DCP directory until the last minute.
118 _sound_asset_writer = _sound_asset->start_write (
119 _film->directory() / audio_asset_filename (_sound_asset, _reel_index, _reel_count, _content_summary),
120 _film->interop() ? dcp::INTEROP : dcp::SMPTE
125 /** @param frame reel-relative frame */
127 ReelWriter::write_frame_info (Frame frame, Eyes eyes, dcp::FrameInfo info) const
130 boost::filesystem::path info_file = _film->info_file (_period);
131 bool const read = boost::filesystem::exists (info_file);
133 file = fopen_boost (info_file, "r+b");
135 file = fopen_boost (info_file, "wb");
138 throw OpenFileError (info_file, errno, read);
140 dcpomatic_fseek (file, frame_info_position (frame, eyes), SEEK_SET);
141 fwrite (&info.offset, sizeof (info.offset), 1, file);
142 fwrite (&info.size, sizeof (info.size), 1, file);
143 fwrite (info.hash.c_str(), 1, info.hash.size(), file);
148 ReelWriter::read_frame_info (FILE* file, Frame frame, Eyes eyes) const
151 dcpomatic_fseek (file, frame_info_position (frame, eyes), SEEK_SET);
152 fread (&info.offset, sizeof (info.offset), 1, file);
153 fread (&info.size, sizeof (info.size), 1, file);
155 char hash_buffer[33];
156 fread (hash_buffer, 1, 32, file);
157 hash_buffer[32] = '\0';
158 info.hash = hash_buffer;
164 ReelWriter::frame_info_position (Frame frame, Eyes eyes) const
168 return frame * _info_size;
170 return frame * _info_size * 2;
172 return frame * _info_size * 2 + _info_size;
174 DCPOMATIC_ASSERT (false);
177 DCPOMATIC_ASSERT (false);
181 ReelWriter::check_existing_picture_asset ()
183 /* Try to open the existing asset */
184 DCPOMATIC_ASSERT (_picture_asset->file());
185 FILE* asset_file = fopen_boost (_picture_asset->file().get(), "rb");
187 LOG_GENERAL ("Could not open existing asset at %1 (errno=%2)", _picture_asset->file()->string(), errno);
190 LOG_GENERAL ("Opened existing asset at %1", _picture_asset->file()->string());
193 /* Offset of the last dcp::FrameInfo in the info file */
194 int const n = (boost::filesystem::file_size (_film->info_file(_period)) / _info_size) - 1;
195 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);
197 FILE* info_file = fopen_boost (_film->info_file(_period), "rb");
199 LOG_GENERAL_NC ("Could not open film info file");
204 if (_film->three_d ()) {
205 /* Start looking at the last left frame */
206 _first_nonexistant_frame = n / 2;
208 _first_nonexistant_frame = n;
211 while (!existing_picture_frame_ok(asset_file, info_file) && _first_nonexistant_frame > 0) {
212 --_first_nonexistant_frame;
215 if (!_film->three_d() && _first_nonexistant_frame > 0) {
216 /* If we are doing 3D we might have found a good L frame with no R, so only
217 do this if we're in 2D and we've just found a good B(oth) frame.
219 ++_first_nonexistant_frame;
222 LOG_GENERAL ("Proceeding with first nonexistant frame %1", _first_nonexistant_frame);
229 ReelWriter::write (optional<Data> encoded, Frame frame, Eyes eyes)
231 dcp::FrameInfo fin = _picture_asset_writer->write (encoded->data().get (), encoded->size());
232 write_frame_info (frame, eyes, fin);
233 _last_written[eyes] = encoded;
234 _last_written_video_frame = frame;
235 _last_written_eyes = eyes;
239 ReelWriter::fake_write (Frame frame, Eyes eyes, int size)
241 _picture_asset_writer->fake_write (size);
242 _last_written_video_frame = frame;
243 _last_written_eyes = eyes;
247 ReelWriter::repeat_write (Frame frame, Eyes eyes)
249 dcp::FrameInfo fin = _picture_asset_writer->write (
250 _last_written[eyes]->data().get(),
251 _last_written[eyes]->size()
253 write_frame_info (frame, eyes, fin);
254 _last_written_video_frame = frame;
255 _last_written_eyes = eyes;
259 ReelWriter::finish ()
261 if (!_picture_asset_writer->finalize ()) {
262 /* Nothing was written to the picture asset */
263 _picture_asset.reset ();
266 if (_sound_asset_writer && !_sound_asset_writer->finalize ()) {
267 /* Nothing was written to the sound asset */
268 _sound_asset.reset ();
271 /* Hard-link any video asset file into the DCP */
272 if (_picture_asset) {
273 DCPOMATIC_ASSERT (_picture_asset->file());
274 boost::filesystem::path video_from = _picture_asset->file().get();
275 boost::filesystem::path video_to;
276 video_to /= _film->dir (_film->dcp_name());
277 video_to /= video_asset_filename (_picture_asset, _reel_index, _reel_count, _content_summary);
279 boost::system::error_code ec;
280 boost::filesystem::create_hard_link (video_from, video_to, ec);
282 LOG_WARNING_NC ("Hard-link failed; copying instead");
283 boost::filesystem::copy_file (video_from, video_to, ec);
285 LOG_ERROR ("Failed to copy video file from %1 to %2 (%3)", video_from.string(), video_to.string(), ec.message ());
286 throw FileError (ec.message(), video_from);
290 _picture_asset->set_file (video_to);
293 /* Move the audio asset into the DCP */
295 boost::filesystem::path audio_to;
296 audio_to /= _film->dir (_film->dcp_name ());
297 string const aaf = audio_asset_filename (_sound_asset, _reel_index, _reel_count, _content_summary);
300 boost::system::error_code ec;
301 boost::filesystem::rename (_film->file (aaf), audio_to, ec);
304 String::compose (_("could not move audio asset into the DCP (%1)"), ec.value ()), aaf
308 _sound_asset->set_file (audio_to);
312 shared_ptr<dcp::Reel>
313 ReelWriter::create_reel (list<ReferencedReelAsset> const & refs, list<shared_ptr<Font> > const & fonts)
315 shared_ptr<dcp::Reel> reel (new dcp::Reel ());
317 shared_ptr<dcp::ReelPictureAsset> reel_picture_asset;
319 if (_picture_asset) {
320 /* We have made a picture asset of our own. Put it into the reel */
321 shared_ptr<dcp::MonoPictureAsset> mono = dynamic_pointer_cast<dcp::MonoPictureAsset> (_picture_asset);
323 reel_picture_asset.reset (new dcp::ReelMonoPictureAsset (mono, 0));
326 shared_ptr<dcp::StereoPictureAsset> stereo = dynamic_pointer_cast<dcp::StereoPictureAsset> (_picture_asset);
328 reel_picture_asset.reset (new dcp::ReelStereoPictureAsset (stereo, 0));
331 /* We don't have a picture asset of our own; hopefully we have one to reference */
332 BOOST_FOREACH (ReferencedReelAsset j, refs) {
333 shared_ptr<dcp::ReelPictureAsset> k = dynamic_pointer_cast<dcp::ReelPictureAsset> (j.asset);
334 if (k && j.period == _period) {
335 reel_picture_asset = k;
340 DCPOMATIC_ASSERT (reel_picture_asset);
341 reel->add (reel_picture_asset);
343 /* If we have a hash for this asset in the CPL, assume that it is correct */
344 if (reel_picture_asset->hash()) {
345 reel_picture_asset->asset_ref()->set_hash (reel_picture_asset->hash().get());
349 /* We have made a sound asset of our own. Put it into the reel */
350 reel->add (shared_ptr<dcp::ReelSoundAsset> (new dcp::ReelSoundAsset (_sound_asset, 0)));
352 /* We don't have a sound asset of our own; hopefully we have one to reference */
353 BOOST_FOREACH (ReferencedReelAsset j, refs) {
354 shared_ptr<dcp::ReelSoundAsset> k = dynamic_pointer_cast<dcp::ReelSoundAsset> (j.asset);
355 if (k && j.period == _period) {
357 /* If we have a hash for this asset in the CPL, assume that it is correct */
359 k->asset_ref()->set_hash (k->hash().get());
365 if (_subtitle_asset) {
367 boost::filesystem::path liberation_normal;
369 liberation_normal = shared_path() / "LiberationSans-Regular.ttf";
370 if (!boost::filesystem::exists (liberation_normal)) {
371 /* Hack for unit tests */
372 liberation_normal = shared_path() / "fonts" / "LiberationSans-Regular.ttf";
374 } catch (boost::filesystem::filesystem_error& e) {
378 if (!boost::filesystem::exists(liberation_normal)) {
379 liberation_normal = "/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf";
382 /* Add all the fonts to the subtitle content */
383 BOOST_FOREACH (shared_ptr<Font> j, fonts) {
384 _subtitle_asset->add_font (j->id(), j->file(FontFiles::NORMAL).get_value_or(liberation_normal));
387 if (dynamic_pointer_cast<dcp::InteropSubtitleAsset> (_subtitle_asset)) {
388 boost::filesystem::path directory = _film->dir (_film->dcp_name ()) / _subtitle_asset->id ();
389 boost::filesystem::create_directories (directory);
390 _subtitle_asset->write (directory / ("sub_" + _subtitle_asset->id() + ".xml"));
393 /* All our assets should be the same length; use the picture asset length here
394 as a reference to set the subtitle one.
396 dynamic_pointer_cast<dcp::SMPTESubtitleAsset>(_subtitle_asset)->set_intrinsic_duration (
397 reel_picture_asset->intrinsic_duration ()
400 _subtitle_asset->write (
401 _film->dir (_film->dcp_name ()) / ("sub_" + _subtitle_asset->id() + ".mxf")
405 reel->add (shared_ptr<dcp::ReelSubtitleAsset> (
406 new dcp::ReelSubtitleAsset (
408 dcp::Fraction (_film->video_frame_rate(), 1),
409 reel_picture_asset->intrinsic_duration (),
414 /* We don't have a subtitle asset of our own; hopefully we have one to reference */
415 BOOST_FOREACH (ReferencedReelAsset j, refs) {
416 shared_ptr<dcp::ReelSubtitleAsset> k = dynamic_pointer_cast<dcp::ReelSubtitleAsset> (j.asset);
417 if (k && j.period == _period) {
419 /* If we have a hash for this asset in the CPL, assume that it is correct */
421 k->asset_ref()->set_hash (k->hash().get());
431 ReelWriter::calculate_digests (boost::function<void (float)> set_progress)
433 if (_picture_asset) {
434 _picture_asset->hash (set_progress);
438 _sound_asset->hash (set_progress);
443 ReelWriter::start () const
445 return _period.from.frames_floor (_film->video_frame_rate());
450 ReelWriter::write (shared_ptr<const AudioBuffers> audio)
452 if (!_sound_asset_writer) {
457 _sound_asset_writer->write (audio->data(), audio->frames());
460 ++_total_written_audio_frames;
464 ReelWriter::write (PlayerSubtitles subs)
466 if (!_subtitle_asset) {
467 string lang = _film->subtitle_language ();
471 if (_film->interop ()) {
472 shared_ptr<dcp::InteropSubtitleAsset> s (new dcp::InteropSubtitleAsset ());
473 s->set_movie_title (_film->name ());
474 s->set_language (lang);
475 s->set_reel_number ("1");
478 shared_ptr<dcp::SMPTESubtitleAsset> s (new dcp::SMPTESubtitleAsset ());
479 s->set_content_title_text (_film->name ());
480 s->set_language (lang);
481 s->set_edit_rate (dcp::Fraction (_film->video_frame_rate (), 1));
482 s->set_reel_number (1);
483 s->set_time_code_rate (_film->video_frame_rate ());
484 s->set_start_time (dcp::Time ());
485 if (_film->encrypted ()) {
486 s->set_key (_film->key ());
492 BOOST_FOREACH (dcp::SubtitleString i, subs.text) {
493 i.set_in (i.in() - dcp::Time (_period.from.seconds(), i.in().tcr));
494 i.set_out (i.out() - dcp::Time (_period.from.seconds(), i.out().tcr));
495 _subtitle_asset->add (i);
500 ReelWriter::existing_picture_frame_ok (FILE* asset_file, FILE* info_file) const
502 LOG_GENERAL ("Checking existing picture frame %1", _first_nonexistant_frame);
504 /* Read the data from the info file; for 3D we just check the left
505 frames until we find a good one.
507 dcp::FrameInfo const info = read_frame_info (info_file, _first_nonexistant_frame, _film->three_d () ? EYES_LEFT : EYES_BOTH);
511 /* Read the data from the asset and hash it */
512 dcpomatic_fseek (asset_file, info.offset, SEEK_SET);
513 Data data (info.size);
514 size_t const read = fread (data.data().get(), 1, data.size(), asset_file);
515 LOG_GENERAL ("Read %1 bytes of asset data; wanted %2", read, info.size);
516 if (read != static_cast<size_t> (data.size ())) {
517 LOG_GENERAL ("Existing frame %1 is incomplete", _first_nonexistant_frame);
521 digester.add (data.data().get(), data.size());
522 LOG_GENERAL ("Hash %1 vs %2", digester.get(), info.hash);
523 if (digester.get() != info.hash) {
524 LOG_GENERAL ("Existing frame %1 failed hash check", _first_nonexistant_frame);