2 Copyright (C) 2012-2020 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"
26 #include "dcpomatic_log.h"
28 #include "font_data.h"
29 #include "compose.hpp"
31 #include "audio_buffers.h"
33 #include <dcp/atmos_asset.h>
34 #include <dcp/atmos_asset_writer.h>
35 #include <dcp/mono_picture_asset.h>
36 #include <dcp/stereo_picture_asset.h>
37 #include <dcp/sound_asset.h>
38 #include <dcp/sound_asset_writer.h>
40 #include <dcp/reel_atmos_asset.h>
41 #include <dcp/reel_mono_picture_asset.h>
42 #include <dcp/reel_stereo_picture_asset.h>
43 #include <dcp/reel_sound_asset.h>
44 #include <dcp/reel_subtitle_asset.h>
45 #include <dcp/reel_closed_caption_asset.h>
46 #include <dcp/reel_markers_asset.h>
49 #include <dcp/certificate_chain.h>
50 #include <dcp/interop_subtitle_asset.h>
51 #include <dcp/smpte_subtitle_asset.h>
52 #include <dcp/raw_convert.h>
53 #include <dcp/subtitle_image.h>
64 using std::shared_ptr;
65 using std::make_shared;
66 using boost::optional;
67 using std::dynamic_pointer_cast;
68 #if BOOST_VERSION >= 106100
69 using namespace boost::placeholders;
74 using dcp::raw_convert;
75 using namespace dcpomatic;
77 int const ReelWriter::_info_size = 48;
79 static dcp::MXFMetadata
82 dcp::MXFMetadata meta;
83 auto config = Config::instance();
84 if (!config->dcp_company_name().empty()) {
85 meta.company_name = config->dcp_company_name ();
87 if (!config->dcp_product_name().empty()) {
88 meta.product_name = config->dcp_product_name ();
90 if (!config->dcp_product_version().empty()) {
91 meta.product_version = config->dcp_product_version ();
96 /** @param job Related job, or 0.
97 * @param text_only true to enable a special mode where the writer will expect only subtitles and closed captions to be written
98 * (no picture nor sound) and not give errors in that case. This is used by the hints system to check the potential sizes of
99 * subtitle / closed caption files.
101 ReelWriter::ReelWriter (
102 weak_ptr<const Film> weak_film, DCPTimePeriod period, shared_ptr<Job> job, int reel_index, int reel_count, bool text_only
104 : WeakConstFilm (weak_film)
106 , _reel_index (reel_index)
107 , _reel_count (reel_count)
108 , _content_summary (film()->content_summary(period))
110 , _text_only (text_only)
112 /* Create or find our picture asset in a subdirectory, named
113 according to those film's parameters which affect the video
114 output. We will hard-link it into the DCP later.
117 auto const standard = film()->interop() ? dcp::Standard::INTEROP : dcp::Standard::SMPTE;
119 boost::filesystem::path const asset =
120 film()->internal_video_asset_dir() / film()->internal_video_asset_filename(_period);
122 _first_nonexistant_frame = check_existing_picture_asset (asset);
124 if (_first_nonexistant_frame < period.duration().frames_round(film()->video_frame_rate())) {
125 /* We do not have a complete picture asset. If there is an
126 existing asset, break any hard links to it as we are about
127 to change its contents (if only by changing the IDs); see
130 if (boost::filesystem::exists(asset) && boost::filesystem::hard_link_count(asset) > 1) {
132 job->sub (_("Copying old video file"));
133 copy_in_bits (asset, asset.string() + ".tmp", bind(&Job::set_progress, job.get(), _1, false));
135 boost::filesystem::copy_file (asset, asset.string() + ".tmp");
137 boost::filesystem::remove (asset);
138 boost::filesystem::rename (asset.string() + ".tmp", asset);
142 if (film()->three_d()) {
143 _picture_asset.reset (new dcp::StereoPictureAsset(dcp::Fraction(film()->video_frame_rate(), 1), standard));
145 _picture_asset.reset (new dcp::MonoPictureAsset(dcp::Fraction(film()->video_frame_rate(), 1), standard));
148 _picture_asset->set_size (film()->frame_size());
149 _picture_asset->set_metadata (mxf_metadata());
151 if (film()->encrypted()) {
152 _picture_asset->set_key (film()->key());
153 _picture_asset->set_context_id (film()->context_id());
156 _picture_asset->set_file (asset);
157 _picture_asset_writer = _picture_asset->start_write (asset, _first_nonexistant_frame > 0);
158 } else if (!text_only) {
159 /* We already have a complete picture asset that we can just re-use */
160 /* XXX: what about if the encryption key changes? */
161 if (film()->three_d()) {
162 _picture_asset = make_shared<dcp::StereoPictureAsset>(asset);
164 _picture_asset = make_shared<dcp::MonoPictureAsset>(asset);
168 if (film()->audio_channels()) {
169 auto langs = film()->audio_languages();
170 _sound_asset = make_shared<dcp::SoundAsset> (
171 dcp::Fraction(film()->video_frame_rate(), 1),
172 film()->audio_frame_rate(),
173 film()->audio_channels(),
174 langs.empty() ? dcp::LanguageTag("en-US") : langs.front(),
178 _sound_asset->set_metadata (mxf_metadata());
180 if (film()->encrypted()) {
181 _sound_asset->set_key (film()->key());
184 DCPOMATIC_ASSERT (film()->directory());
186 /* Write the sound asset into the film directory so that we leave the creation
187 of the DCP directory until the last minute.
189 _sound_asset_writer = _sound_asset->start_write (
190 film()->directory().get() / audio_asset_filename (_sound_asset, _reel_index, _reel_count, _content_summary),
191 film()->contains_atmos_content()
195 _default_font = dcp::ArrayData(default_font_file());
198 /** @param frame reel-relative frame */
200 ReelWriter::write_frame_info (Frame frame, Eyes eyes, dcp::FrameInfo info) const
202 auto handle = film()->info_file_handle(_period, false);
203 dcpomatic_fseek (handle->get(), frame_info_position(frame, eyes), SEEK_SET);
204 checked_fwrite (&info.offset, sizeof(info.offset), handle->get(), handle->file());
205 checked_fwrite (&info.size, sizeof (info.size), handle->get(), handle->file());
206 checked_fwrite (info.hash.c_str(), info.hash.size(), handle->get(), handle->file());
210 ReelWriter::read_frame_info (shared_ptr<InfoFileHandle> info, Frame frame, Eyes eyes) const
212 dcp::FrameInfo frame_info;
213 dcpomatic_fseek (info->get(), frame_info_position(frame, eyes), SEEK_SET);
214 checked_fread (&frame_info.offset, sizeof(frame_info.offset), info->get(), info->file());
215 checked_fread (&frame_info.size, sizeof(frame_info.size), info->get(), info->file());
217 char hash_buffer[33];
218 checked_fread (hash_buffer, 32, info->get(), info->file());
219 hash_buffer[32] = '\0';
220 frame_info.hash = hash_buffer;
226 ReelWriter::frame_info_position (Frame frame, Eyes eyes) const
230 return frame * _info_size;
232 return frame * _info_size * 2;
234 return frame * _info_size * 2 + _info_size;
236 DCPOMATIC_ASSERT (false);
239 DCPOMATIC_ASSERT (false);
243 ReelWriter::check_existing_picture_asset (boost::filesystem::path asset)
245 auto job = _job.lock ();
248 job->sub (_("Checking existing image data"));
251 /* Try to open the existing asset */
252 auto asset_file = fopen_boost (asset, "rb");
254 LOG_GENERAL ("Could not open existing asset at %1 (errno=%2)", asset.string(), errno);
257 LOG_GENERAL ("Opened existing asset at %1", asset.string());
260 shared_ptr<InfoFileHandle> info_file;
263 info_file = film()->info_file_handle (_period, true);
264 } catch (OpenFileError &) {
265 LOG_GENERAL_NC ("Could not open film info file");
270 /* Offset of the last dcp::FrameInfo in the info file */
271 int const n = (boost::filesystem::file_size(info_file->file()) / _info_size) - 1;
272 LOG_GENERAL ("The last FI is %1; info file is %2, info size %3", n, boost::filesystem::file_size(info_file->file()), _info_size);
274 Frame first_nonexistant_frame;
275 if (film()->three_d()) {
276 /* Start looking at the last left frame */
277 first_nonexistant_frame = n / 2;
279 first_nonexistant_frame = n;
282 while (!existing_picture_frame_ok(asset_file, info_file, first_nonexistant_frame) && first_nonexistant_frame > 0) {
283 --first_nonexistant_frame;
286 if (!film()->three_d() && first_nonexistant_frame > 0) {
287 /* If we are doing 3D we might have found a good L frame with no R, so only
288 do this if we're in 2D and we've just found a good B(oth) frame.
290 ++first_nonexistant_frame;
293 LOG_GENERAL ("Proceeding with first nonexistant frame %1", first_nonexistant_frame);
297 return first_nonexistant_frame;
301 ReelWriter::write (shared_ptr<const Data> encoded, Frame frame, Eyes eyes)
303 if (!_picture_asset_writer) {
304 /* We're not writing any data */
308 auto fin = _picture_asset_writer->write (encoded->data(), encoded->size());
309 write_frame_info (frame, eyes, fin);
310 _last_written[static_cast<int>(eyes)] = encoded;
315 ReelWriter::write (shared_ptr<const dcp::AtmosFrame> atmos, AtmosMetadata metadata)
318 _atmos_asset = metadata.create (dcp::Fraction(film()->video_frame_rate(), 1));
319 if (film()->encrypted()) {
320 _atmos_asset->set_key(film()->key());
322 _atmos_asset_writer = _atmos_asset->start_write (
323 film()->directory().get() / atmos_asset_filename (_atmos_asset, _reel_index, _reel_count, _content_summary)
326 _atmos_asset_writer->write (atmos);
331 ReelWriter::fake_write (int size)
333 if (!_picture_asset_writer) {
334 /* We're not writing any data */
338 _picture_asset_writer->fake_write (size);
342 ReelWriter::repeat_write (Frame frame, Eyes eyes)
344 if (!_picture_asset_writer) {
345 /* We're not writing any data */
349 auto fin = _picture_asset_writer->write (
350 _last_written[static_cast<int>(eyes)]->data(),
351 _last_written[static_cast<int>(eyes)]->size()
353 write_frame_info (frame, eyes, fin);
357 ReelWriter::finish (boost::filesystem::path output_dcp)
359 if (_picture_asset_writer && !_picture_asset_writer->finalize ()) {
360 /* Nothing was written to the picture asset */
361 LOG_GENERAL ("Nothing was written to reel %1 of %2", _reel_index, _reel_count);
362 _picture_asset.reset ();
365 if (_sound_asset_writer && !_sound_asset_writer->finalize ()) {
366 /* Nothing was written to the sound asset */
367 _sound_asset.reset ();
370 /* Hard-link any video asset file into the DCP */
371 if (_picture_asset) {
372 DCPOMATIC_ASSERT (_picture_asset->file());
373 boost::filesystem::path video_from = _picture_asset->file().get();
374 boost::filesystem::path video_to = output_dcp;
375 video_to /= video_asset_filename (_picture_asset, _reel_index, _reel_count, _content_summary);
376 /* There may be an existing "to" file if we are recreating a DCP in the same place without
379 boost::system::error_code ec;
380 boost::filesystem::remove (video_to, ec);
382 boost::filesystem::create_hard_link (video_from, video_to, ec);
384 LOG_WARNING_NC ("Hard-link failed; copying instead");
385 auto job = _job.lock ();
387 job->sub (_("Copying video file into DCP"));
389 copy_in_bits (video_from, video_to, bind(&Job::set_progress, job.get(), _1, false));
390 } catch (exception& e) {
391 LOG_ERROR ("Failed to copy video file from %1 to %2 (%3)", video_from.string(), video_to.string(), e.what());
392 throw FileError (e.what(), video_from);
395 boost::filesystem::copy_file (video_from, video_to, ec);
397 LOG_ERROR ("Failed to copy video file from %1 to %2 (%3)", video_from.string(), video_to.string(), ec.message());
398 throw FileError (ec.message(), video_from);
403 _picture_asset->set_file (video_to);
406 /* Move the audio asset into the DCP */
408 boost::filesystem::path audio_to = output_dcp;
409 auto const aaf = audio_asset_filename (_sound_asset, _reel_index, _reel_count, _content_summary);
412 boost::system::error_code ec;
413 boost::filesystem::rename (film()->file(aaf), audio_to, ec);
416 String::compose (_("could not move audio asset into the DCP (%1)"), ec.value ()), aaf
420 _sound_asset->set_file (audio_to);
424 _atmos_asset_writer->finalize ();
425 boost::filesystem::path atmos_to = output_dcp;
426 auto const aaf = atmos_asset_filename (_atmos_asset, _reel_index, _reel_count, _content_summary);
429 boost::system::error_code ec;
430 boost::filesystem::rename (film()->file(aaf), atmos_to, ec);
433 String::compose (_("could not move atmos asset into the DCP (%1)"), ec.value ()), aaf
437 _atmos_asset->set_file (atmos_to);
444 shared_ptr<dcp::SubtitleAsset> asset,
445 int64_t picture_duration,
446 shared_ptr<dcp::Reel> reel,
447 list<ReferencedReelAsset> const & refs,
448 vector<FontData> const & fonts,
449 dcp::ArrayData default_font,
450 shared_ptr<const Film> film,
451 DCPTimePeriod period,
452 boost::filesystem::path output_dcp,
456 Frame const period_duration = period.duration().frames_round(film->video_frame_rate());
458 shared_ptr<T> reel_asset;
461 /* Add the font to the subtitle content */
462 for (auto const& j: fonts) {
463 asset->add_font (j.id, j.data.get_value_or(default_font));
466 if (dynamic_pointer_cast<dcp::InteropSubtitleAsset> (asset)) {
467 auto directory = output_dcp / asset->id ();
468 boost::filesystem::create_directories (directory);
469 asset->write (directory / ("sub_" + asset->id() + ".xml"));
471 /* All our assets should be the same length; use the picture asset length here
472 as a reference to set the subtitle one. We'll use the duration rather than
473 the intrinsic duration; we don't care if the picture asset has been trimmed, we're
474 just interested in its presentation length.
476 dynamic_pointer_cast<dcp::SMPTESubtitleAsset>(asset)->set_intrinsic_duration (picture_duration);
479 output_dcp / ("sub_" + asset->id() + ".mxf")
483 reel_asset = make_shared<T> (
485 dcp::Fraction(film->video_frame_rate(), 1),
490 /* We don't have a subtitle asset of our own; hopefully we have one to reference */
492 auto k = dynamic_pointer_cast<T> (j.asset);
493 if (k && j.period == period) {
495 /* If we have a hash for this asset in the CPL, assume that it is correct */
497 k->asset_ref()->set_hash (k->hash().get());
504 if (!text_only && reel_asset->actual_duration() != period_duration) {
505 throw ProgrammingError (
507 String::compose ("%1 vs %2", reel_asset->actual_duration(), period_duration)
510 reel->add (reel_asset);
517 shared_ptr<dcp::ReelPictureAsset>
518 ReelWriter::create_reel_picture (shared_ptr<dcp::Reel> reel, list<ReferencedReelAsset> const & refs) const
520 shared_ptr<dcp::ReelPictureAsset> reel_asset;
522 if (_picture_asset) {
523 /* We have made a picture asset of our own. Put it into the reel */
524 auto mono = dynamic_pointer_cast<dcp::MonoPictureAsset> (_picture_asset);
526 reel_asset = make_shared<dcp::ReelMonoPictureAsset>(mono, 0);
529 auto stereo = dynamic_pointer_cast<dcp::StereoPictureAsset> (_picture_asset);
531 reel_asset = make_shared<dcp::ReelStereoPictureAsset>(stereo, 0);
534 LOG_GENERAL ("no picture asset of our own; look through %1", refs.size());
535 /* We don't have a picture asset of our own; hopefully we have one to reference */
537 auto k = dynamic_pointer_cast<dcp::ReelPictureAsset> (j.asset);
539 LOG_GENERAL ("candidate picture asset period is %1-%2", j.period.from.get(), j.period.to.get());
541 if (k && j.period == _period) {
547 Frame const period_duration = _period.duration().frames_round(film()->video_frame_rate());
549 DCPOMATIC_ASSERT (reel_asset);
550 if (reel_asset->duration() != period_duration) {
551 throw ProgrammingError (
553 String::compose ("%1 vs %2", reel_asset->actual_duration(), period_duration)
556 reel->add (reel_asset);
558 /* If we have a hash for this asset in the CPL, assume that it is correct */
559 if (reel_asset->hash()) {
560 reel_asset->asset_ref()->set_hash (reel_asset->hash().get());
568 ReelWriter::create_reel_sound (shared_ptr<dcp::Reel> reel, list<ReferencedReelAsset> const & refs) const
570 shared_ptr<dcp::ReelSoundAsset> reel_asset;
573 /* We have made a sound asset of our own. Put it into the reel */
574 reel_asset = make_shared<dcp::ReelSoundAsset>(_sound_asset, 0);
576 LOG_GENERAL ("no sound asset of our own; look through %1", refs.size());
577 /* We don't have a sound asset of our own; hopefully we have one to reference */
579 auto k = dynamic_pointer_cast<dcp::ReelSoundAsset> (j.asset);
581 LOG_GENERAL ("candidate sound asset period is %1-%2", j.period.from.get(), j.period.to.get());
583 if (k && j.period == _period) {
585 /* If we have a hash for this asset in the CPL, assume that it is correct */
587 k->asset_ref()->set_hash (k->hash().get());
593 auto const period_duration = _period.duration().frames_round(film()->video_frame_rate());
595 DCPOMATIC_ASSERT (reel_asset);
596 if (reel_asset->actual_duration() != period_duration) {
598 "Reel sound asset has length %1 but reel period is %2",
599 reel_asset->actual_duration(),
602 if (reel_asset->actual_duration() != period_duration) {
603 throw ProgrammingError (
605 String::compose ("%1 vs %2", reel_asset->actual_duration(), period_duration)
610 reel->add (reel_asset);
615 ReelWriter::create_reel_text (
616 shared_ptr<dcp::Reel> reel,
617 list<ReferencedReelAsset> const & refs,
618 vector<FontData> const& fonts,
620 boost::filesystem::path output_dcp,
621 bool ensure_subtitles,
622 set<DCPTextTrack> ensure_closed_captions
625 auto subtitle = maybe_add_text<dcp::ReelSubtitleAsset> (
626 _subtitle_asset, duration, reel, refs, fonts, _default_font, film(), _period, output_dcp, _text_only
630 /* We have a subtitle asset that we either made or are referencing */
631 if (auto main_language = film()->subtitle_languages().first) {
632 subtitle->set_language (*main_language);
634 } else if (ensure_subtitles) {
635 /* We had no subtitle asset, but we've been asked to make sure there is one */
636 subtitle = maybe_add_text<dcp::ReelSubtitleAsset>(
637 empty_text_asset(TextType::OPEN_SUBTITLE, optional<DCPTextTrack>()),
650 for (auto const& i: _closed_caption_assets) {
651 auto a = maybe_add_text<dcp::ReelClosedCaptionAsset> (
652 i.second, duration, reel, refs, fonts, _default_font, film(), _period, output_dcp, _text_only
654 DCPOMATIC_ASSERT (a);
655 a->set_annotation_text (i.first.name);
656 if (i.first.language) {
657 a->set_language (i.first.language.get());
660 ensure_closed_captions.erase (i.first);
663 /* Make empty tracks for anything we've been asked to ensure but that we haven't added */
664 for (auto i: ensure_closed_captions) {
665 auto a = maybe_add_text<dcp::ReelClosedCaptionAsset> (
666 empty_text_asset(TextType::CLOSED_CAPTION, i), duration, reel, refs, fonts, _default_font, film(), _period, output_dcp, _text_only
668 DCPOMATIC_ASSERT (a);
669 a->set_annotation_text (i.name);
671 a->set_language (i.language.get());
679 ReelWriter::create_reel_markers (shared_ptr<dcp::Reel> reel) const
681 auto markers = film()->markers();
682 film()->add_ffoc_lfoc(markers);
683 Film::Markers reel_markers;
684 for (auto const& i: markers) {
685 if (_period.contains(i.second)) {
686 reel_markers[i.first] = i.second;
690 if (!reel_markers.empty ()) {
691 auto ma = make_shared<dcp::ReelMarkersAsset>(dcp::Fraction(film()->video_frame_rate(), 1), reel->duration(), 0);
692 for (auto const& i: reel_markers) {
693 DCPTime relative = i.second - _period.from;
694 auto hmsf = relative.split (film()->video_frame_rate());
695 ma->set (i.first, dcp::Time(hmsf.h, hmsf.m, hmsf.s, hmsf.f, film()->video_frame_rate()));
702 /** @param ensure_subtitles true to make sure the reel has a subtitle asset.
703 * @param ensure_closed_captions make sure the reel has these closed caption tracks.
705 shared_ptr<dcp::Reel>
706 ReelWriter::create_reel (
707 list<ReferencedReelAsset> const & refs,
708 vector<FontData> const & fonts,
709 boost::filesystem::path output_dcp,
710 bool ensure_subtitles,
711 set<DCPTextTrack> ensure_closed_captions
714 LOG_GENERAL ("create_reel for %1-%2; %3 of %4", _period.from.get(), _period.to.get(), _reel_index, _reel_count);
716 auto reel = make_shared<dcp::Reel>();
718 /* This is a bit of a hack; in the strange `_text_only' mode we have no picture, so we don't know
719 * how long the subtitle / CCAP assets should be. However, since we're only writing them to see
720 * how big they are, we don't care about that.
722 int64_t duration = 0;
724 auto reel_picture_asset = create_reel_picture (reel, refs);
725 duration = reel_picture_asset->actual_duration ();
726 create_reel_sound (reel, refs);
727 create_reel_markers (reel);
730 create_reel_text (reel, refs, fonts, duration, output_dcp, ensure_subtitles, ensure_closed_captions);
733 reel->add (make_shared<dcp::ReelAtmosAsset>(_atmos_asset, 0));
740 ReelWriter::calculate_digests (boost::function<void (float)> set_progress)
742 if (_picture_asset) {
743 _picture_asset->hash (set_progress);
747 _sound_asset->hash (set_progress);
751 _atmos_asset->hash (set_progress);
756 ReelWriter::start () const
758 return _period.from.frames_floor (film()->video_frame_rate());
763 ReelWriter::write (shared_ptr<const AudioBuffers> audio)
765 if (!_sound_asset_writer) {
769 DCPOMATIC_ASSERT (audio);
770 _sound_asset_writer->write (audio->data(), audio->frames());
774 shared_ptr<dcp::SubtitleAsset>
775 ReelWriter::empty_text_asset (TextType type, optional<DCPTextTrack> track) const
777 shared_ptr<dcp::SubtitleAsset> asset;
779 auto lang = film()->subtitle_languages();
780 if (film()->interop()) {
781 auto s = make_shared<dcp::InteropSubtitleAsset>();
782 s->set_movie_title (film()->name());
783 if (type == TextType::OPEN_SUBTITLE) {
784 s->set_language (lang.first ? lang.first->to_string() : "Unknown");
785 } else if (track->language) {
786 s->set_language (track->language->to_string());
788 s->set_reel_number (raw_convert<string> (_reel_index + 1));
791 auto s = make_shared<dcp::SMPTESubtitleAsset>();
792 s->set_content_title_text (film()->name());
793 s->set_metadata (mxf_metadata());
794 if (type == TextType::OPEN_SUBTITLE && lang.first) {
795 s->set_language (*lang.first);
796 } else if (track && track->language) {
797 s->set_language (dcp::LanguageTag(track->language->to_string()));
799 s->set_edit_rate (dcp::Fraction (film()->video_frame_rate(), 1));
800 s->set_reel_number (_reel_index + 1);
801 s->set_time_code_rate (film()->video_frame_rate());
802 s->set_start_time (dcp::Time ());
803 if (film()->encrypted()) {
804 s->set_key (film()->key());
807 std::make_shared<dcp::SubtitleString>(
808 optional<std::string>(),
815 dcp::Time(0, 0, 0, 0, 24),
816 dcp::Time(0, 0, 1, 0, 24),
837 ReelWriter::write (PlayerText subs, TextType type, optional<DCPTextTrack> track, DCPTimePeriod period)
839 shared_ptr<dcp::SubtitleAsset> asset;
842 case TextType::OPEN_SUBTITLE:
843 asset = _subtitle_asset;
845 case TextType::CLOSED_CAPTION:
846 DCPOMATIC_ASSERT (track);
847 asset = _closed_caption_assets[*track];
850 DCPOMATIC_ASSERT (false);
854 asset = empty_text_asset (type, track);
858 case TextType::OPEN_SUBTITLE:
859 _subtitle_asset = asset;
861 case TextType::CLOSED_CAPTION:
862 DCPOMATIC_ASSERT (track);
863 _closed_caption_assets[*track] = asset;
866 DCPOMATIC_ASSERT (false);
869 /* timecode rate for subtitles we emit; we might as well stick to ms accuracy here, I think */
870 auto const tcr = 1000;
872 for (auto i: subs.string) {
873 i.set_in (dcp::Time(period.from.seconds() - _period.from.seconds(), tcr));
874 i.set_out (dcp::Time(period.to.seconds() - _period.from.seconds(), tcr));
875 asset->add (make_shared<dcp::SubtitleString>(i));
878 for (auto i: subs.bitmap) {
880 make_shared<dcp::SubtitleImage>(
882 dcp::Time(period.from.seconds() - _period.from.seconds(), tcr),
883 dcp::Time(period.to.seconds() - _period.from.seconds(), tcr),
884 i.rectangle.x, dcp::HAlign::LEFT, i.rectangle.y, dcp::VAlign::TOP,
885 dcp::Time(), dcp::Time()
892 ReelWriter::existing_picture_frame_ok (FILE* asset_file, shared_ptr<InfoFileHandle> info_file, Frame frame) const
894 LOG_GENERAL ("Checking existing picture frame %1", frame);
896 /* Read the data from the info file; for 3D we just check the left
897 frames until we find a good one.
899 auto const info = read_frame_info (info_file, frame, film()->three_d() ? Eyes::LEFT : Eyes::BOTH);
903 /* Read the data from the asset and hash it */
904 dcpomatic_fseek (asset_file, info.offset, SEEK_SET);
905 ArrayData data (info.size);
906 size_t const read = fread (data.data(), 1, data.size(), asset_file);
907 LOG_GENERAL ("Read %1 bytes of asset data; wanted %2", read, info.size);
908 if (read != static_cast<size_t> (data.size ())) {
909 LOG_GENERAL ("Existing frame %1 is incomplete", frame);
913 digester.add (data.data(), data.size());
914 LOG_GENERAL ("Hash %1 vs %2", digester.get(), info.hash);
915 if (digester.get() != info.hash) {
916 LOG_GENERAL ("Existing frame %1 failed hash check", frame);