2 Copyright (C) 2012-2015 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 "reel_writer.h"
25 #include "md5_digester.h"
27 #include "compose.hpp"
28 #include "audio_buffers.h"
29 #include <dcp/mono_picture_asset.h>
30 #include <dcp/stereo_picture_asset.h>
31 #include <dcp/sound_asset.h>
32 #include <dcp/sound_asset_writer.h>
34 #include <dcp/reel_mono_picture_asset.h>
35 #include <dcp/reel_stereo_picture_asset.h>
36 #include <dcp/reel_sound_asset.h>
37 #include <dcp/reel_subtitle_asset.h>
40 #include <dcp/certificate_chain.h>
41 #include <dcp/interop_subtitle_asset.h>
42 #include <dcp/smpte_subtitle_asset.h>
43 #include <boost/foreach.hpp>
47 #define LOG_GENERAL(...) _film->log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_GENERAL);
48 #define LOG_GENERAL_NC(...) _film->log()->log (__VA_ARGS__, LogEntry::TYPE_GENERAL);
49 #define LOG_WARNING_NC(...) _film->log()->log (__VA_ARGS__, LogEntry::TYPE_WARNING);
50 #define LOG_ERROR(...) _film->log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_ERROR);
55 using boost::shared_ptr;
56 using boost::optional;
57 using boost::dynamic_pointer_cast;
60 int const ReelWriter::_info_size = 48;
62 ReelWriter::ReelWriter (shared_ptr<const Film> film, DCPTimePeriod period, shared_ptr<Job> job)
65 , _first_nonexistant_frame (0)
66 , _last_written_video_frame (-1)
67 , _last_written_eyes (EYES_RIGHT)
68 , _total_written_audio_frames (0)
70 /* Create our picture asset in a subdirectory, named according to those
71 film's parameters which affect the video output. We will hard-link
72 it into the DCP later.
75 if (_film->three_d ()) {
76 _picture_asset.reset (new dcp::StereoPictureAsset (dcp::Fraction (_film->video_frame_rate (), 1)));
78 _picture_asset.reset (new dcp::MonoPictureAsset (dcp::Fraction (_film->video_frame_rate (), 1)));
81 _picture_asset->set_size (_film->frame_size ());
83 if (_film->encrypted ()) {
84 _picture_asset->set_key (_film->key ());
87 _picture_asset->set_file (
88 _film->internal_video_asset_dir() / _film->internal_video_asset_filename(_period)
91 job->sub (_("Checking existing image data"));
92 check_existing_picture_asset ();
94 _picture_asset_writer = _picture_asset->start_write (
95 _film->internal_video_asset_dir() / _film->internal_video_asset_filename(_period),
96 _film->interop() ? dcp::INTEROP : dcp::SMPTE,
97 _first_nonexistant_frame > 0
100 if (_film->audio_channels ()) {
102 new dcp::SoundAsset (dcp::Fraction (_film->video_frame_rate(), 1), _film->audio_frame_rate (), _film->audio_channels ())
105 if (_film->encrypted ()) {
106 _sound_asset->set_key (_film->key ());
109 /* Write the sound asset into the film directory so that we leave the creation
110 of the DCP directory until the last minute.
112 _sound_asset_writer = _sound_asset->start_write (
113 _film->directory() / audio_asset_filename (_sound_asset),
114 _film->interop() ? dcp::INTEROP : dcp::SMPTE
119 /** @param frame reel-relative frame */
121 ReelWriter::write_frame_info (Frame frame, Eyes eyes, dcp::FrameInfo info) const
124 boost::filesystem::path info_file = _film->info_file (_period);
125 if (boost::filesystem::exists (info_file)) {
126 file = fopen_boost (info_file, "r+b");
128 file = fopen_boost (info_file, "wb");
131 throw OpenFileError (info_file);
133 dcpomatic_fseek (file, frame_info_position (frame, eyes), SEEK_SET);
134 fwrite (&info.offset, sizeof (info.offset), 1, file);
135 fwrite (&info.size, sizeof (info.size), 1, file);
136 fwrite (info.hash.c_str(), 1, info.hash.size(), file);
141 ReelWriter::read_frame_info (FILE* file, Frame frame, Eyes eyes) const
144 dcpomatic_fseek (file, frame_info_position (frame, eyes), SEEK_SET);
145 fread (&info.offset, sizeof (info.offset), 1, file);
146 fread (&info.size, sizeof (info.size), 1, file);
148 char hash_buffer[33];
149 fread (hash_buffer, 1, 32, file);
150 hash_buffer[32] = '\0';
151 info.hash = hash_buffer;
157 ReelWriter::frame_info_position (Frame frame, Eyes eyes) const
161 return frame * _info_size;
163 return frame * _info_size * 2;
165 return frame * _info_size * 2 + _info_size;
167 DCPOMATIC_ASSERT (false);
170 DCPOMATIC_ASSERT (false);
174 ReelWriter::check_existing_picture_asset ()
176 /* Try to open the existing asset */
177 FILE* asset_file = fopen_boost (_picture_asset->file(), "rb");
179 LOG_GENERAL ("Could not open existing asset at %1 (errno=%2)", _picture_asset->file().string(), errno);
183 /* Offset of the last dcp::FrameInfo in the info file */
184 int const n = (boost::filesystem::file_size (_film->info_file(_period)) / _info_size) - 1;
186 FILE* info_file = fopen_boost (_film->info_file(_period), "rb");
188 LOG_GENERAL_NC ("Could not open film info file");
193 if (_film->three_d ()) {
194 /* Start looking at the last left frame */
195 _first_nonexistant_frame = n / 2;
197 _first_nonexistant_frame = n;
202 while (!ok && _first_nonexistant_frame > 0) {
203 /* Read the data from the info file; for 3D we just check the left
204 frames until we find a good one.
206 dcp::FrameInfo info = read_frame_info (info_file, _first_nonexistant_frame, _film->three_d () ? EYES_LEFT : EYES_BOTH);
210 /* Read the data from the asset and hash it */
211 dcpomatic_fseek (asset_file, info.offset, SEEK_SET);
212 Data data (info.size);
213 size_t const read = fread (data.data().get(), 1, data.size(), asset_file);
214 if (read != static_cast<size_t> (data.size ())) {
215 LOG_GENERAL ("Existing frame %1 is incomplete", _first_nonexistant_frame);
218 MD5Digester digester;
219 digester.add (data.data().get(), data.size());
220 if (digester.get() != info.hash) {
221 LOG_GENERAL ("Existing frame %1 failed hash check", _first_nonexistant_frame);
227 --_first_nonexistant_frame;
231 if (!_film->three_d() && ok) {
232 /* If we are doing 3D we might have found a good L frame with no R, so only
233 do this if we're in 2D and we've just found a good B(oth) frame.
235 ++_first_nonexistant_frame;
243 ReelWriter::write (optional<Data> encoded, Frame frame, Eyes eyes)
245 dcp::FrameInfo fin = _picture_asset_writer->write (encoded->data().get (), encoded->size());
246 write_frame_info (frame, eyes, fin);
247 _last_written[eyes] = encoded;
248 _last_written_video_frame = frame;
249 _last_written_eyes = eyes;
253 ReelWriter::fake_write (Frame frame, Eyes eyes, int size)
255 _picture_asset_writer->fake_write (size);
256 _last_written_video_frame = frame;
257 _last_written_eyes = eyes;
261 ReelWriter::repeat_write (Frame frame, Eyes eyes)
263 dcp::FrameInfo fin = _picture_asset_writer->write (
264 _last_written[eyes]->data().get(),
265 _last_written[eyes]->size()
267 write_frame_info (frame, eyes, fin);
268 _last_written_video_frame = frame;
269 _last_written_eyes = eyes;
273 ReelWriter::finish ()
275 if (!_picture_asset_writer->finalize ()) {
276 /* Nothing was written to the picture asset */
277 _picture_asset.reset ();
280 if (_sound_asset_writer && !_sound_asset_writer->finalize ()) {
281 /* Nothing was written to the sound asset */
282 _sound_asset.reset ();
285 /* Hard-link any video asset file into the DCP */
286 if (_picture_asset) {
287 boost::filesystem::path video_from = _picture_asset->file ();
288 boost::filesystem::path video_to;
289 video_to /= _film->dir (_film->dcp_name());
290 video_to /= video_asset_filename (_picture_asset);
292 boost::system::error_code ec;
293 boost::filesystem::create_hard_link (video_from, video_to, ec);
295 LOG_WARNING_NC ("Hard-link failed; copying instead");
296 boost::filesystem::copy_file (video_from, video_to, ec);
298 LOG_ERROR ("Failed to copy video file from %1 to %2 (%3)", video_from.string(), video_to.string(), ec.message ());
299 throw FileError (ec.message(), video_from);
303 _picture_asset->set_file (video_to);
306 /* Move the audio asset into the DCP */
308 boost::filesystem::path audio_to;
309 audio_to /= _film->dir (_film->dcp_name ());
310 audio_to /= audio_asset_filename (_sound_asset);
312 boost::system::error_code ec;
313 boost::filesystem::rename (_film->file (audio_asset_filename (_sound_asset)), audio_to, ec);
316 String::compose (_("could not move audio asset into the DCP (%1)"), ec.value ()), audio_asset_filename (_sound_asset)
320 _sound_asset->set_file (audio_to);
324 shared_ptr<dcp::Reel>
325 ReelWriter::create_reel (list<ReferencedReelAsset> const & refs, list<shared_ptr<Font> > const & fonts)
327 shared_ptr<dcp::Reel> reel (new dcp::Reel ());
329 shared_ptr<dcp::ReelPictureAsset> reel_picture_asset;
331 if (_picture_asset) {
332 /* We have made a picture asset of our own. Put it into the reel */
333 shared_ptr<dcp::MonoPictureAsset> mono = dynamic_pointer_cast<dcp::MonoPictureAsset> (_picture_asset);
335 reel_picture_asset.reset (new dcp::ReelMonoPictureAsset (mono, 0));
338 shared_ptr<dcp::StereoPictureAsset> stereo = dynamic_pointer_cast<dcp::StereoPictureAsset> (_picture_asset);
340 reel_picture_asset.reset (new dcp::ReelStereoPictureAsset (stereo, 0));
343 /* We don't have a picture asset of our own; hopefully we have one to reference */
344 BOOST_FOREACH (ReferencedReelAsset j, refs) {
345 shared_ptr<dcp::ReelPictureAsset> k = dynamic_pointer_cast<dcp::ReelPictureAsset> (j.asset);
346 if (k && j.period == _period) {
347 reel_picture_asset = k;
352 reel->add (reel_picture_asset);
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) {
367 if (_subtitle_asset) {
369 boost::filesystem::path liberation_normal;
371 liberation_normal = shared_path() / "LiberationSans-Regular.ttf";
372 if (!boost::filesystem::exists (liberation_normal)) {
373 /* Hack for unit tests */
374 liberation_normal = shared_path() / "fonts" / "LiberationSans-Regular.ttf";
376 } catch (boost::filesystem::filesystem_error& e) {
380 if (!boost::filesystem::exists(liberation_normal)) {
381 liberation_normal = "/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf";
384 /* Add all the fonts to the subtitle content */
385 BOOST_FOREACH (shared_ptr<Font> j, fonts) {
386 _subtitle_asset->add_font (j->id(), j->file(FontFiles::NORMAL).get_value_or(liberation_normal));
389 if (dynamic_pointer_cast<dcp::InteropSubtitleAsset> (_subtitle_asset)) {
390 boost::filesystem::path directory = _film->dir (_film->dcp_name ()) / _subtitle_asset->id ();
391 boost::filesystem::create_directories (directory);
392 _subtitle_asset->write (directory / ("sub_" + _subtitle_asset->id() + ".xml"));
395 /* All our assets should be the same length; use the picture asset length here
396 as a reference to set the subtitle one.
398 dynamic_pointer_cast<dcp::SMPTESubtitleAsset>(_subtitle_asset)->set_intrinsic_duration (
399 reel_picture_asset->intrinsic_duration ()
402 _subtitle_asset->write (
403 _film->dir (_film->dcp_name ()) / ("sub_" + _subtitle_asset->id() + ".mxf")
407 reel->add (shared_ptr<dcp::ReelSubtitleAsset> (
408 new dcp::ReelSubtitleAsset (
410 dcp::Fraction (_film->video_frame_rate(), 1),
411 reel_picture_asset->intrinsic_duration (),
416 /* We don't have a subtitle asset of our own; hopefully we have one to reference */
417 BOOST_FOREACH (ReferencedReelAsset j, refs) {
418 shared_ptr<dcp::ReelSubtitleAsset> k = dynamic_pointer_cast<dcp::ReelSubtitleAsset> (j.asset);
419 if (k && j.period == _period) {
429 ReelWriter::calculate_digests (shared_ptr<Job> job)
431 job->sub (_("Computing image digest"));
432 if (_picture_asset) {
433 _picture_asset->hash (boost::bind (&Job::set_progress, job.get(), _1, false));
437 job->sub (_("Computing audio digest"));
438 _sound_asset->hash (boost::bind (&Job::set_progress, job.get(), _1, false));
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 ());
489 BOOST_FOREACH (dcp::SubtitleString i, subs.text) {
490 i.set_in (i.in() - dcp::Time (_period.from.seconds(), i.in().tcr));
491 i.set_out (i.out() - dcp::Time (_period.from.seconds(), i.out().tcr));
492 _subtitle_asset->add (i);