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/>.
22 #include "compose.hpp"
26 #include "dcp_video.h"
27 #include "dcp_content_type.h"
28 #include "audio_mapping.h"
32 #include "audio_buffers.h"
36 #include "reel_writer.h"
38 #include <boost/foreach.hpp>
45 #define LOG_GENERAL(...) _film->log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_GENERAL);
46 #define LOG_GENERAL_NC(...) _film->log()->log (__VA_ARGS__, LogEntry::TYPE_GENERAL);
47 #define LOG_DEBUG_ENCODE(...) _film->log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_DEBUG_ENCODE);
48 #define LOG_TIMING(...) _film->log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_TIMING);
49 #define LOG_WARNING_NC(...) _film->log()->log (__VA_ARGS__, LogEntry::TYPE_WARNING);
50 #define LOG_WARNING(...) _film->log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_WARNING);
51 #define LOG_ERROR(...) _film->log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_ERROR);
53 /* OS X strikes again */
64 using boost::shared_ptr;
65 using boost::weak_ptr;
66 using boost::dynamic_pointer_cast;
69 Writer::Writer (shared_ptr<const Film> film, weak_ptr<Job> j)
74 , _queued_full_in_memory (0)
75 , _maximum_frames_in_memory (0)
81 /* Remove any old DCP */
82 boost::filesystem::remove_all (_film->dir (_film->dcp_name ()));
84 shared_ptr<Job> job = _job.lock ();
85 DCPOMATIC_ASSERT (job);
87 BOOST_FOREACH (DCPTimePeriod p, _film->reels ()) {
88 _reels.push_back (ReelWriter (film, p, job));
91 /* We can keep track of the current audio and subtitle reels easily because audio
92 and subs arrive to the Writer in sequence. This is not so for video.
94 _audio_reel = _reels.begin ();
95 _subtitle_reel = _reels.begin ();
97 /* Check that the signer is OK if we need one */
98 if (_film->is_signed() && !Config::instance()->signer_chain()->valid ()) {
99 throw InvalidSignerError ();
106 _thread = new boost::thread (boost::bind (&Writer::thread, this));
111 terminate_thread (false);
114 /** Pass a video frame to the writer for writing to disk at some point.
115 * This method can be called with frames out of order.
116 * @param encoded JPEG2000-encoded data.
117 * @param frame Frame index within the DCP.
118 * @param eyes Eyes that this frame image is for.
121 Writer::write (Data encoded, Frame frame, Eyes eyes)
123 boost::mutex::scoped_lock lock (_state_mutex);
125 while (_queued_full_in_memory > _maximum_frames_in_memory) {
126 /* The queue is too big; wait until that is sorted out */
127 _full_condition.wait (lock);
131 qi.type = QueueItem::FULL;
132 qi.encoded = encoded;
133 qi.reel = video_reel (frame);
134 qi.frame = frame - _reels[qi.reel].start ();
136 if (_film->three_d() && eyes == EYES_BOTH) {
137 /* 2D material in a 3D DCP; fake the 3D */
139 _queue.push_back (qi);
140 ++_queued_full_in_memory;
141 qi.eyes = EYES_RIGHT;
142 _queue.push_back (qi);
143 ++_queued_full_in_memory;
146 _queue.push_back (qi);
147 ++_queued_full_in_memory;
150 /* Now there's something to do: wake anything wait()ing on _empty_condition */
151 _empty_condition.notify_all ();
155 Writer::can_repeat (Frame frame) const
157 return frame > _reels[video_reel(frame)].start();
160 /** Repeat the last frame that was written to a reel as a new frame.
161 * @param frame Frame index within the DCP of the new (repeated) frame.
162 * @param eyes Eyes that this repeated frame image is for.
165 Writer::repeat (Frame frame, Eyes eyes)
167 boost::mutex::scoped_lock lock (_state_mutex);
169 while (_queued_full_in_memory > _maximum_frames_in_memory) {
170 /* The queue is too big; wait until that is sorted out */
171 _full_condition.wait (lock);
175 qi.type = QueueItem::REPEAT;
176 qi.reel = video_reel (frame);
177 qi.frame = frame - _reels[qi.reel].start ();
178 if (_film->three_d() && eyes == EYES_BOTH) {
180 _queue.push_back (qi);
181 qi.eyes = EYES_RIGHT;
182 _queue.push_back (qi);
185 _queue.push_back (qi);
188 /* Now there's something to do: wake anything wait()ing on _empty_condition */
189 _empty_condition.notify_all ();
193 Writer::fake_write (Frame frame, Eyes eyes)
195 boost::mutex::scoped_lock lock (_state_mutex);
197 while (_queued_full_in_memory > _maximum_frames_in_memory) {
198 /* The queue is too big; wait until that is sorted out */
199 _full_condition.wait (lock);
202 size_t const reel = video_reel (frame);
203 Frame const reel_frame = frame - _reels[reel].start ();
205 FILE* file = fopen_boost (_film->info_file(_reels[reel].period()), "rb");
207 throw ReadFileError (_film->info_file(_reels[reel].period()));
209 dcp::FrameInfo info = _reels[reel].read_frame_info (file, reel_frame, eyes);
213 qi.type = QueueItem::FAKE;
216 qi.frame = reel_frame;
217 if (_film->three_d() && eyes == EYES_BOTH) {
219 _queue.push_back (qi);
220 qi.eyes = EYES_RIGHT;
221 _queue.push_back (qi);
224 _queue.push_back (qi);
227 /* Now there's something to do: wake anything wait()ing on _empty_condition */
228 _empty_condition.notify_all ();
231 /** Write one video frame's worth of audio frames to the DCP.
232 * @param audio Audio data or 0 if there is no audio to be written here (i.e. it is referenced).
233 * This method is not thread safe.
236 Writer::write (shared_ptr<const AudioBuffers> audio)
238 if (_audio_reel == _reels.end ()) {
239 /* This audio is off the end of the last reel; ignore it */
243 _audio_reel->write (audio);
245 /* written is in video frames, not audio frames */
246 if (_audio_reel->total_written_audio_frames() >= _audio_reel->period().duration().frames_floor (_film->video_frame_rate())) {
251 /** This must be called from Writer::thread() with an appropriate lock held */
253 Writer::have_sequenced_image_at_queue_head ()
255 if (_queue.empty ()) {
261 QueueItem const & f = _queue.front();
262 ReelWriter const & reel = _reels[f.reel];
264 /* The queue should contain only EYES_LEFT/EYES_RIGHT pairs or EYES_BOTH */
266 if (f.eyes == EYES_BOTH) {
268 return f.frame == (reel.last_written_video_frame() + 1);
273 if (reel.last_written_eyes() == EYES_LEFT && f.frame == reel.last_written_video_frame() && f.eyes == EYES_RIGHT) {
277 if (reel.last_written_eyes() == EYES_RIGHT && f.frame == (reel.last_written_video_frame() + 1) && f.eyes == EYES_LEFT) {
290 boost::mutex::scoped_lock lock (_state_mutex);
294 if (_finish || _queued_full_in_memory > _maximum_frames_in_memory || have_sequenced_image_at_queue_head ()) {
295 /* We've got something to do: go and do it */
299 /* Nothing to do: wait until something happens which may indicate that we do */
300 LOG_TIMING (N_("writer-sleep queue=%1"), _queue.size());
301 _empty_condition.wait (lock);
302 LOG_TIMING (N_("writer-wake queue=%1"), _queue.size());
305 if (_finish && _queue.empty()) {
309 /* We stop here if we have been asked to finish, and if either the queue
310 is empty or we do not have a sequenced image at its head (if this is the
311 case we will never terminate as no new frames will be sent once
314 if (_finish && (!have_sequenced_image_at_queue_head() || _queue.empty())) {
315 /* (Hopefully temporarily) log anything that was not written */
316 if (!_queue.empty() && !have_sequenced_image_at_queue_head()) {
317 LOG_WARNING (N_("Finishing writer with a left-over queue of %1:"), _queue.size());
318 for (list<QueueItem>::const_iterator i = _queue.begin(); i != _queue.end(); ++i) {
319 if (i->type == QueueItem::FULL) {
320 LOG_WARNING (N_("- type FULL, frame %1, eyes %2"), i->frame, i->eyes);
322 LOG_WARNING (N_("- type FAKE, size %1, frame %2, eyes %3"), i->size, i->frame, i->eyes);
329 /* Write any frames that we can write; i.e. those that are in sequence. */
330 while (have_sequenced_image_at_queue_head ()) {
331 QueueItem qi = _queue.front ();
333 if (qi.type == QueueItem::FULL && qi.encoded) {
334 --_queued_full_in_memory;
339 ReelWriter& reel = _reels[qi.reel];
342 case QueueItem::FULL:
343 LOG_DEBUG_ENCODE (N_("Writer FULL-writes %1 (%2)"), qi.frame, qi.eyes);
345 qi.encoded = Data (_film->j2c_path (qi.reel, qi.frame, qi.eyes, false));
347 reel.write (qi.encoded, qi.frame, qi.eyes);
350 case QueueItem::FAKE:
351 LOG_DEBUG_ENCODE (N_("Writer FAKE-writes %1"), qi.frame);
352 reel.fake_write (qi.frame, qi.eyes, qi.size);
355 case QueueItem::REPEAT:
356 LOG_DEBUG_ENCODE (N_("Writer REPEAT-writes %1"), qi.frame);
357 reel.repeat_write (qi.frame, qi.eyes);
365 while (_queued_full_in_memory > _maximum_frames_in_memory) {
366 /* Too many frames in memory which can't yet be written to the stream.
367 Write some FULL frames to disk.
370 /* Find one from the back of the queue */
372 list<QueueItem>::reverse_iterator i = _queue.rbegin ();
373 while (i != _queue.rend() && (i->type != QueueItem::FULL || !i->encoded)) {
377 DCPOMATIC_ASSERT (i != _queue.rend());
381 /* i is valid here, even though we don't hold a lock on the mutex,
382 since list iterators are unaffected by insertion and only this
383 thread could erase the last item in the list.
386 LOG_GENERAL ("Writer full; pushes %1 to disk", i->frame);
388 i->encoded->write_via_temp (
389 _film->j2c_path (i->reel, i->frame, i->eyes, true),
390 _film->j2c_path (i->reel, i->frame, i->eyes, false)
395 --_queued_full_in_memory;
398 /* The queue has probably just gone down a bit; notify anything wait()ing on _full_condition */
399 _full_condition.notify_all ();
408 Writer::terminate_thread (bool can_throw)
410 boost::mutex::scoped_lock lock (_state_mutex);
416 _empty_condition.notify_all ();
417 _full_condition.notify_all ();
420 if (_thread->joinable ()) {
439 LOG_GENERAL_NC ("Terminating writer thread");
441 terminate_thread (true);
443 LOG_GENERAL_NC ("Finishing ReelWriters");
445 BOOST_FOREACH (ReelWriter& i, _reels) {
449 LOG_GENERAL_NC ("Writing XML");
451 dcp::DCP dcp (_film->dir (_film->dcp_name()));
453 shared_ptr<dcp::CPL> cpl (
456 _film->dcp_content_type()->libdcp_kind ()
462 /* Calculate digests for each reel in parallel */
464 shared_ptr<Job> job = _job.lock ();
465 job->sub (_("Computing digests"));
467 boost::asio::io_service service;
468 boost::thread_group pool;
470 shared_ptr<boost::asio::io_service::work> work (new boost::asio::io_service::work (service));
472 int const threads = max (1, Config::instance()->num_local_encoding_threads ());
474 for (int i = 0; i < threads; ++i) {
475 pool.create_thread (boost::bind (&boost::asio::io_service::run, &service));
478 BOOST_FOREACH (ReelWriter& i, _reels) {
479 boost::function<void (float)> set_progress = boost::bind (&Writer::set_digest_progress, this, job.get(), _1);
480 service.post (boost::bind (&ReelWriter::calculate_digests, &i, set_progress));
487 /* Add reels to CPL */
489 BOOST_FOREACH (ReelWriter& i, _reels) {
490 cpl->add (i.create_reel (_reel_assets, _fonts));
493 dcp::XMLMetadata meta;
494 meta.creator = Config::instance()->dcp_creator ();
495 if (meta.creator.empty ()) {
496 meta.creator = String::compose ("DCP-o-matic %1 %2", dcpomatic_version, dcpomatic_git_commit);
498 meta.issuer = Config::instance()->dcp_issuer ();
499 if (meta.issuer.empty ()) {
500 meta.issuer = String::compose ("DCP-o-matic %1 %2", dcpomatic_version, dcpomatic_git_commit);
502 meta.set_issue_date_now ();
504 cpl->set_metadata (meta);
506 shared_ptr<const dcp::CertificateChain> signer;
507 if (_film->is_signed ()) {
508 signer = Config::instance()->signer_chain ();
509 /* We did check earlier, but check again here to be on the safe side */
510 if (!signer->valid ()) {
511 throw InvalidSignerError ();
515 dcp.write_xml (_film->interop () ? dcp::INTEROP : dcp::SMPTE, meta, signer);
518 N_("Wrote %1 FULL, %2 FAKE, %3 REPEAT, %4 pushed to disk"), _full_written, _fake_written, _repeat_written, _pushed_to_disk
522 /** @param frame Frame index within the whole DCP.
523 * @return true if we can fake-write this frame.
526 Writer::can_fake_write (Frame frame) const
528 /* We have to do a proper write of the first frame so that we can set up the JPEG2000
529 parameters in the asset writer.
532 ReelWriter const & reel = _reels[video_reel(frame)];
534 /* Make frame relative to the start of the reel */
535 frame -= reel.start ();
536 return (frame != 0 && frame < reel.first_nonexistant_frame());
540 Writer::write (PlayerSubtitles subs)
542 if (subs.text.empty ()) {
546 if (_subtitle_reel->period().to <= subs.from) {
550 _subtitle_reel->write (subs);
554 Writer::write (list<shared_ptr<Font> > fonts)
556 /* Just keep a list of unique fonts and we'll deal with them in ::finish */
558 BOOST_FOREACH (shared_ptr<Font> i, fonts) {
560 BOOST_FOREACH (shared_ptr<Font> j, _fonts) {
567 _fonts.push_back (i);
573 operator< (QueueItem const & a, QueueItem const & b)
575 if (a.reel != b.reel) {
576 return a.reel < b.reel;
579 if (a.frame != b.frame) {
580 return a.frame < b.frame;
583 return static_cast<int> (a.eyes) < static_cast<int> (b.eyes);
587 operator== (QueueItem const & a, QueueItem const & b)
589 return a.reel == b.reel && a.frame == b.frame && a.eyes == b.eyes;
593 Writer::set_encoder_threads (int threads)
595 /* I think the scaling factor here should be the ratio of the longest frame
596 encode time to the shortest; if the thread count is T, longest time is L
597 and the shortest time S we could encode L/S frames per thread whilst waiting
598 for the L frame to encode so we might have to store LT/S frames.
600 However we don't want to use too much memory, so keep it a bit lower than we'd
601 perhaps like. A J2K frame is typically about 1Mb so 3 here will mean we could
602 use about 240Mb with 72 encoding threads.
604 _maximum_frames_in_memory = lrint (threads * 3);
608 Writer::write (ReferencedReelAsset asset)
610 _reel_assets.push_back (asset);
614 Writer::video_reel (int frame) const
616 DCPTime t = DCPTime::from_frames (frame, _film->video_frame_rate ());
618 while (i < _reels.size() && !_reels[i].period().contains (t)) {
622 DCPOMATIC_ASSERT (i < _reels.size ());
627 Writer::set_digest_progress (Job* job, float progress)
629 /* I believe this is thread-safe */
630 _digest_progresses[boost::this_thread::get_id()] = progress;
632 boost::mutex::scoped_lock lm (_digest_progresses_mutex);
633 float min_progress = 0;
634 for (map<boost::thread::id, float>::const_iterator i = _digest_progresses.begin(); i != _digest_progresses.end(); ++i) {
635 min_progress = min (min_progress, i->second);
638 job->set_progress (min_progress);