2 Copyright (C) 2012-2021 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 /** @file src/lib/util.cc
22 * @brief Some utility functions and classes.
29 #include "audio_buffers.h"
30 #include "audio_processor.h"
31 #include "cinema_sound_processor.h"
32 #include "compose.hpp"
34 #include "constants.h"
36 #include "dcp_content_type.h"
37 #include "dcpomatic_log.h"
39 #include "exceptions.h"
40 #include "ffmpeg_image_proxy.h"
45 #include "job_manager.h"
48 #include "render_text.h"
49 #include "string_text.h"
50 #include "text_decoder.h"
53 #include "video_content.h"
54 #include <dcp/atmos_asset.h>
55 #include <dcp/decrypted_kdm.h>
57 #include <dcp/filesystem.h>
58 #include <dcp/locale_convert.h>
59 #include <dcp/mpeg2_picture_asset.h>
60 #include <dcp/picture_asset.h>
61 #include <dcp/raw_convert.h>
62 #include <dcp/scope_guard.h>
63 #include <dcp/sound_asset.h>
64 #include <dcp/subtitle_asset.h>
66 #include <dcp/warnings.h>
67 LIBDCP_DISABLE_WARNINGS
69 #include <libavfilter/avfilter.h>
70 #include <libavformat/avformat.h>
71 #include <libavcodec/avcodec.h>
73 LIBDCP_ENABLE_WARNINGS
74 #include <curl/curl.h>
76 #include <pangomm/init.h>
77 #include <unicode/utypes.h>
78 #include <unicode/unistr.h>
79 #include <unicode/translit.h>
80 #include <unicode/brkiter.h>
81 #include <boost/algorithm/string.hpp>
82 #include <boost/range/algorithm/replace_if.hpp>
83 #include <boost/thread.hpp>
84 #include <boost/filesystem.hpp>
85 LIBDCP_DISABLE_WARNINGS
86 #include <boost/locale.hpp>
87 LIBDCP_ENABLE_WARNINGS
88 #ifdef DCPOMATIC_WINDOWS
98 #ifdef DCPOMATIC_POSIX
106 using std::bad_alloc;
108 using std::dynamic_pointer_cast;
112 using std::make_pair;
113 using std::make_shared;
118 using std::set_terminate;
119 using std::shared_ptr;
124 using boost::optional;
126 using dcp::raw_convert;
127 using dcp::locale_convert;
128 using namespace dcpomatic;
131 /** Path to our executable, required by the stacktrace stuff and filled
132 * in during App::onInit().
135 bool is_batch_converter = false;
136 static boost::thread::id ui_thread;
137 static boost::filesystem::path backtrace_file;
139 /** Convert some number of seconds to a string representation
140 * in hours, minutes and seconds.
143 * @return String of the form H:M:S (where H is hours, M
144 * is minutes and S is seconds).
147 seconds_to_hms (int s)
155 snprintf (buffer, sizeof(buffer), "%d:%02d:%02d", h, m, s);
160 time_to_hmsf (DCPTime time, Frame rate)
162 Frame f = time.frames_round (rate);
171 snprintf (buffer, sizeof(buffer), "%d:%02d:%02d.%d", h, m, s, static_cast<int>(f));
175 /** @param s Number of seconds.
176 * @return String containing an approximate description of s (e.g. "about 2 hours")
179 seconds_to_approximate_hms (int s)
189 bool minutes = h < 6 && m > 0;
190 bool seconds = h == 0 && m < 10 && s > 0;
192 if (m > 30 && !minutes) {
193 /* round up the hours */
196 if (s > 30 && !seconds) {
197 /* round up the minutes */
207 /// TRANSLATORS: h here is an abbreviation for hours
208 ap += locale_convert<string>(h) + _("h");
210 if (minutes || seconds) {
216 /// TRANSLATORS: m here is an abbreviation for minutes
217 ap += locale_convert<string>(m) + _("m");
226 /// TRANSLATORS: s here is an abbreviation for seconds
227 ap += locale_convert<string>(s) + _("s");
234 seconds (struct timeval t)
236 return t.tv_sec + (double (t.tv_usec) / 1e6);
239 #ifdef DCPOMATIC_WINDOWS
241 /** Resolve symbol name and source location given the path to the executable */
243 addr2line (void const * const addr)
245 char addr2line_cmd[512] = { 0 };
246 sprintf (addr2line_cmd, "addr2line -f -p -e %.256s %p > %s", program_name.c_str(), addr, backtrace_file.string().c_str());
247 std::cout << addr2line_cmd << "\n";
248 return system(addr2line_cmd);
251 LIBDCP_DISABLE_WARNINGS
252 /** This is called when C signals occur on Windows (e.g. SIGSEGV)
253 * (NOT C++ exceptions!). We write a backtrace to backtrace_file by dark means.
254 * Adapted from code here: http://spin.atomicobject.com/2013/01/13/exceptions-stack-traces-c/
257 exception_handler(struct _EXCEPTION_POINTERS * info)
259 dcp::File f(backtrace_file, "w");
261 fprintf(f.get(), "C-style exception %d\n", info->ExceptionRecord->ExceptionCode);
265 if (info->ExceptionRecord->ExceptionCode != EXCEPTION_STACK_OVERFLOW) {
266 CONTEXT* context = info->ContextRecord;
267 SymInitialize (GetCurrentProcess (), 0, true);
269 STACKFRAME frame = { 0 };
271 /* setup initial stack frame */
273 frame.AddrPC.Offset = context->Rip;
274 frame.AddrStack.Offset = context->Rsp;
275 frame.AddrFrame.Offset = context->Rbp;
277 frame.AddrPC.Offset = context->Eip;
278 frame.AddrStack.Offset = context->Esp;
279 frame.AddrFrame.Offset = context->Ebp;
281 frame.AddrPC.Mode = AddrModeFlat;
282 frame.AddrStack.Mode = AddrModeFlat;
283 frame.AddrFrame.Mode = AddrModeFlat;
287 IMAGE_FILE_MACHINE_I386,
288 GetCurrentProcess (),
293 SymFunctionTableAccess,
298 addr2line((void *) frame.AddrPC.Offset);
302 addr2line ((void *) info->ContextRecord->Rip);
304 addr2line ((void *) info->ContextRecord->Eip);
308 return EXCEPTION_CONTINUE_SEARCH;
310 LIBDCP_ENABLE_WARNINGS
314 set_backtrace_file (boost::filesystem::path p)
319 /** This is called when there is an unhandled exception. Any
320 * backtrace in this function is useless on Windows as the stack has
321 * already been unwound from the throw; we have the gdb wrap hack to
328 static bool tried_throw = false;
329 // try once to re-throw currently active exception
335 catch (const std::exception &e) {
336 std::cerr << __FUNCTION__ << " caught unhandled exception. what(): "
337 << e.what() << std::endl;
340 std::cerr << __FUNCTION__ << " caught unknown/unhandled exception."
348 dcpomatic_setup_path_encoding ()
350 #ifdef DCPOMATIC_WINDOWS
351 /* Dark voodoo which, I think, gets boost::filesystem::path to
352 correctly convert UTF-8 strings to paths, and also paths
353 back to UTF-8 strings (on path::string()).
355 After this, constructing boost::filesystem::paths from strings
356 converts from UTF-8 to UTF-16 inside the path. Then
357 path::string().c_str() gives UTF-8 and
358 path::c_str() gives UTF-16.
360 This is all Windows-only. AFAICT Linux/OS X use UTF-8 everywhere,
361 so things are much simpler.
363 std::locale::global (boost::locale::generator().generate (""));
364 boost::filesystem::path::imbue (std::locale ());
369 class LogSink : public Kumu::ILogSink
373 LogSink (LogSink const&) = delete;
374 LogSink& operator= (LogSink const&) = delete;
376 void WriteEntry(const Kumu::LogEntry& entry) override {
377 Kumu::AutoMutex L(m_lock);
378 WriteEntryToListeners(entry);
379 if (entry.TestFilter(m_filter)) {
381 entry.CreateStringWithOptions(buffer, m_options);
382 LOG_GENERAL("asdcplib: %1", buffer);
389 capture_asdcp_logs ()
391 static LogSink log_sink;
392 Kumu::SetDefaultLogSink(&log_sink);
398 ffmpeg_log_callback(void* ptr, int level, const char* fmt, va_list vl)
400 if (level > AV_LOG_WARNING) {
405 static int prefix = 0;
406 av_log_format_line(ptr, level, fmt, vl, line, sizeof (line), &prefix);
408 boost::algorithm::trim(str);
409 dcpomatic_log->log(String::compose("FFmpeg: %1", str), LogEntry::TYPE_GENERAL);
414 capture_ffmpeg_logs()
416 av_log_set_callback(ffmpeg_log_callback);
420 /** Call the required functions to set up DCP-o-matic's static arrays, etc.
421 * Must be called from the UI thread, if there is one.
426 #ifdef DCPOMATIC_WINDOWS
427 boost::filesystem::path p = g_get_user_config_dir ();
428 p /= "backtrace.txt";
429 set_backtrace_file (p);
430 SetUnhandledExceptionFilter(exception_handler);
433 #ifdef DCPOMATIC_GROK
434 /* This makes grok support work with CUDA 12.2 */
435 setenv("CUDA_MODULE_LOADING", "EAGER", 1);
438 #ifdef DCPOMATIC_HAVE_AVREGISTER
439 LIBDCP_DISABLE_WARNINGS
441 avfilter_register_all ();
442 LIBDCP_ENABLE_WARNINGS
446 /* Add our library directory to the libltdl search path so that
447 xmlsec can find xmlsec1-openssl.
449 auto lib = directory_containing_executable().parent_path();
451 setenv ("LTDL_LIBRARY_PATH", lib.c_str (), 1);
454 set_terminate (terminate);
456 #ifdef DCPOMATIC_WINDOWS
457 putenv ("PANGOCAIRO_BACKEND=fontconfig");
458 if (dcp::filesystem::exists(resources_path() / "fonts.conf")) {
459 /* The actual application after installation */
460 putenv(String::compose("FONTCONFIG_PATH=%1", resources_path().string()).c_str());
462 /* The place where fonts.conf is during tests */
463 putenv("FONTCONFIG_PATH=build\\fonts");
468 setenv ("PANGOCAIRO_BACKEND", "fontconfig", 1);
469 setenv ("FONTCONFIG_PATH", resources_path().string().c_str(), 1);
473 dcp::init (libdcp_resources_path());
475 #if defined(DCPOMATIC_WINDOWS) || defined(DCPOMATIC_OSX)
476 /* Render something to fontconfig to create its cache */
477 vector<StringText> subs;
478 dcp::SubtitleString ss(
479 optional<string>(), false, false, false, dcp::Colour(), 42, 1, dcp::Time(), dcp::Time(), 0, dcp::HAlign::CENTER, 0, dcp::VAlign::CENTER, 0, dcp::Direction::LTR,
480 "Hello dolly", dcp::Effect::NONE, dcp::Colour(), dcp::Time(), dcp::Time(), 0, std::vector<dcp::Ruby>()
482 subs.push_back(StringText(ss, 0, make_shared<dcpomatic::Font>("foo"), dcp::SubtitleStandard::SMPTE_2014));
483 render_text (subs, dcp::Size(640, 480), DCPTime(), 24);
486 Ratio::setup_ratios ();
487 PresetColourConversion::setup_colour_conversion_presets ();
488 DCPContentType::setup_dcp_content_types ();
489 Filter::setup_filters ();
490 CinemaSoundProcessor::setup_cinema_sound_processors ();
491 AudioProcessor::setup_audio_processors ();
493 curl_global_init (CURL_GLOBAL_ALL);
495 ui_thread = boost::this_thread::get_id ();
497 capture_asdcp_logs ();
498 capture_ffmpeg_logs();
501 #ifdef DCPOMATIC_WINDOWS
502 boost::filesystem::path
506 GetModuleFileName (0, buffer, 512 * sizeof(wchar_t));
507 boost::filesystem::path p (buffer);
508 p = p.parent_path ();
509 p = p.parent_path ();
516 boost::filesystem::path
519 return variant::dcpomatic_app() + "/Contents/Resources";
524 dcpomatic_setup_gettext_i18n (string lang)
526 #ifdef DCPOMATIC_LINUX
530 if (!lang.empty ()) {
531 /* Override our environment language. Note that the caller must not
532 free the string passed into putenv().
534 string s = String::compose ("LANGUAGE=%1", lang);
535 putenv (strdup (s.c_str ()));
536 s = String::compose ("LANG=%1", lang);
537 putenv (strdup (s.c_str ()));
538 s = String::compose ("LC_ALL=%1", lang);
539 putenv (strdup (s.c_str ()));
542 setlocale (LC_ALL, "");
543 textdomain ("libdcpomatic2");
545 #if defined(DCPOMATIC_WINDOWS) || defined(DCPOMATIC_OSX)
546 bindtextdomain ("libdcpomatic2", mo_path().string().c_str());
547 bind_textdomain_codeset ("libdcpomatic2", "UTF8");
550 #ifdef DCPOMATIC_LINUX
551 bindtextdomain ("libdcpomatic2", LINUX_LOCALE_PREFIX);
555 /** Compute a digest of the first and last `size' bytes of a set of files. */
557 digest_head_tail (vector<boost::filesystem::path> files, boost::uintmax_t size)
559 boost::scoped_array<char> buffer (new char[size]);
563 boost::uintmax_t to_do = size;
564 char* p = buffer.get ();
566 while (i < int64_t (files.size()) && to_do > 0) {
567 dcp::File f(files[i], "rb");
569 throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
572 auto this_time = min(to_do, dcp::filesystem::file_size(files[i]));
573 f.checked_read(p, this_time);
579 digester.add (buffer.get(), size - to_do);
584 i = files.size() - 1;
585 while (i >= 0 && to_do > 0) {
586 dcp::File f(files[i], "rb");
588 throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
591 auto this_time = min(to_do, dcp::filesystem::file_size(files[i]));
592 f.seek(-this_time, SEEK_END);
593 f.checked_read(p, this_time);
599 digester.add (buffer.get(), size - to_do);
601 return digester.get ();
606 simple_digest (vector<boost::filesystem::path> paths)
608 DCP_ASSERT(!paths.empty());
609 return digest_head_tail(paths, 1000000) + raw_convert<string>(dcp::filesystem::file_size(paths.front()));
613 /** Trip an assert if the caller is not in the UI thread */
617 DCPOMATIC_ASSERT (boost::this_thread::get_id() == ui_thread);
621 audio_channel_name (int c)
623 DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
625 /// TRANSLATORS: these are the names of audio channels; Lfe (sub) is the low-frequency
626 /// enhancement channel (sub-woofer).
627 string const channels[] = {
634 _("Hearing impaired"),
635 _("Visually impaired"),
638 _("Left rear surround"),
639 _("Right rear surround"),
641 _("D-BOX secondary"),
650 short_audio_channel_name (int c)
652 DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
654 /// TRANSLATORS: these are short names of audio channels; Lfe is the low-frequency
655 /// enhancement channel (sub-woofer). HI is the hearing-impaired audio track and
656 /// VI is the visually-impaired audio track (audio describe). DBP is the D-BOX
657 /// primary channel and DBS is the D-BOX secondary channel.
658 string const channels[] = {
682 valid_image_file (boost::filesystem::path f)
684 if (boost::starts_with(f.filename().string(), "._")) {
688 auto ext = f.extension().string();
689 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
691 ext == ".tif" || ext == ".tiff" || ext == ".jpg" || ext == ".jpeg" ||
692 ext == ".png" || ext == ".bmp" || ext == ".tga" || ext == ".dpx" ||
693 ext == ".j2c" || ext == ".j2k" || ext == ".jp2" || ext == ".exr" ||
694 ext == ".jpf" || ext == ".psd"
699 valid_sound_file (boost::filesystem::path f)
701 if (boost::starts_with(f.filename().string(), "._")) {
705 auto ext = f.extension().string();
706 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
707 return (ext == ".wav" || ext == ".mp3" || ext == ".aif" || ext == ".aiff");
711 valid_j2k_file (boost::filesystem::path f)
713 auto ext = f.extension().string();
714 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
715 return (ext == ".j2k" || ext == ".j2c" || ext == ".jp2");
719 tidy_for_filename (string f)
721 boost::replace_if (f, boost::is_any_of ("\\/:"), '_');
726 fit_ratio_within (float ratio, dcp::Size full_frame)
728 if (ratio < full_frame.ratio ()) {
729 return dcp::Size (lrintf (full_frame.height * ratio), full_frame.height);
732 return dcp::Size (full_frame.width, lrintf (full_frame.width / ratio));
737 asset_filename (shared_ptr<dcp::Asset> asset, string type, int reel_index, int reel_count, optional<string> summary, string extension)
739 dcp::NameFormat::Map values;
741 values['r'] = raw_convert<string>(reel_index + 1);
742 values['n'] = raw_convert<string>(reel_count);
744 values['c'] = summary.get();
746 return careful_string_filter(Config::instance()->dcp_asset_filename_format().get(values, "_" + asset->id() + extension));
751 video_asset_filename(shared_ptr<dcp::PictureAsset> asset, int reel_index, int reel_count, optional<string> summary)
753 string type = dynamic_pointer_cast<dcp::MPEG2PictureAsset>(asset) ? "mpeg2" : "j2c";
754 return asset_filename(asset, type, reel_index, reel_count, summary, ".mxf");
759 audio_asset_filename (shared_ptr<dcp::SoundAsset> asset, int reel_index, int reel_count, optional<string> summary)
761 return asset_filename(asset, "pcm", reel_index, reel_count, summary, ".mxf");
766 subtitle_asset_filename (shared_ptr<dcp::SubtitleAsset> asset, int reel_index, int reel_count, optional<string> summary, string extension)
768 return asset_filename(asset, "sub", reel_index, reel_count, summary, extension);
773 atmos_asset_filename (shared_ptr<dcp::AtmosAsset> asset, int reel_index, int reel_count, optional<string> summary)
775 return asset_filename(asset, "atmos", reel_index, reel_count, summary, ".mxf");
780 careful_string_filter (string s)
782 /* Filter out `bad' characters which `may' cause problems with some systems (either for DCP name or filename).
783 There's no apparent list of what really is allowed, so this is a guess.
784 Safety first and all that.
787 /* First transliterate using libicu to try to remove accents in a "nice" way */
788 auto transliterated = icu::UnicodeString::fromUTF8(icu::StringPiece(s));
789 auto status = U_ZERO_ERROR;
790 auto transliterator = icu::Transliterator::createInstance("NFD; [:M:] Remove; NFC", UTRANS_FORWARD, status);
791 transliterator->transliterate(transliterated);
793 /* Some things are missed by ICU's transliterator */
794 std::map<wchar_t, wchar_t> replacements = {
799 icu::UnicodeString transliterated_more;
800 for (int i = 0; i < transliterated.length(); ++i) {
801 auto replacement = replacements.find(transliterated[i]);
802 if (replacement != replacements.end()) {
803 transliterated_more += replacement->second;
805 transliterated_more += transliterated[i];
809 /* Then remove anything that's not in a very limited character set */
811 wstring const allowed = L"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_.+";
812 for (int i = 0; i < transliterated_more.length(); ++i) {
813 wchar_t c = transliterated_more[i];
814 if (allowed.find(c) != string::npos) {
819 return boost::locale::conv::utf_to_utf<char>(out);
822 /** @param mapped List of mapped audio channels from a Film.
823 * @param channels Total number of channels in the Film.
824 * @return First: number of non-LFE soundtrack channels (L/R/C/Ls/Rs/Lc/Rc/Bsl/Bsr), second: number of LFE channels.
827 audio_channel_types (list<int> mapped, int channels)
832 for (auto i: mapped) {
834 /* This channel is mapped but is not included in the DCP */
838 switch (static_cast<dcp::Channel>(i)) {
839 case dcp::Channel::LFE:
842 case dcp::Channel::LEFT:
843 case dcp::Channel::RIGHT:
844 case dcp::Channel::CENTRE:
845 case dcp::Channel::LS:
846 case dcp::Channel::RS:
847 case dcp::Channel::BSL:
848 case dcp::Channel::BSR:
851 case dcp::Channel::LC:
852 case dcp::Channel::RC:
853 case dcp::Channel::HI:
854 case dcp::Channel::VI:
855 case dcp::Channel::MOTION_DATA:
856 case dcp::Channel::SYNC_SIGNAL:
857 case dcp::Channel::SIGN_LANGUAGE:
858 case dcp::Channel::CHANNEL_COUNT:
863 return make_pair (non_lfe, lfe);
866 shared_ptr<AudioBuffers>
867 remap (shared_ptr<const AudioBuffers> input, int output_channels, AudioMapping map)
869 auto mapped = make_shared<AudioBuffers>(output_channels, input->frames());
870 mapped->make_silent ();
872 int to_do = min (map.input_channels(), input->channels());
874 for (int i = 0; i < to_do; ++i) {
875 for (int j = 0; j < mapped->channels(); ++j) {
876 if (map.get(i, j) > 0) {
877 mapped->accumulate_channel(
892 utf8_strlen (string s)
894 size_t const len = s.length ();
896 for (size_t i = 0; i < len; ++i) {
897 unsigned char c = s[i];
898 if ((c & 0xe0) == 0xc0) {
900 } else if ((c & 0xf0) == 0xe0) {
902 } else if ((c & 0xf8) == 0xf0) {
911 /** @param size Size of picture that the subtitle will be overlaid onto */
913 emit_subtitle_image (ContentTimePeriod period, dcp::SubtitleImage sub, dcp::Size size, shared_ptr<TextDecoder> decoder)
915 /* XXX: this is rather inefficient; decoding the image just to get its size */
916 FFmpegImageProxy proxy (sub.png_image());
917 auto image = proxy.image(Image::Alignment::PADDED).image;
918 /* set up rect with height and width */
919 dcpomatic::Rect<double> rect(0, 0, image->size().width / double(size.width), image->size().height / double(size.height));
921 /* add in position */
923 switch (sub.h_align()) {
924 case dcp::HAlign::LEFT:
925 rect.x += sub.h_position();
927 case dcp::HAlign::CENTER:
928 rect.x += 0.5 + sub.h_position() - rect.width / 2;
930 case dcp::HAlign::RIGHT:
931 rect.x += 1 - sub.h_position() - rect.width;
935 switch (sub.v_align()) {
936 case dcp::VAlign::TOP:
937 rect.y += sub.v_position();
939 case dcp::VAlign::CENTER:
940 rect.y += 0.5 + sub.v_position() - rect.height / 2;
942 case dcp::VAlign::BOTTOM:
943 rect.y += 1 - sub.v_position() - rect.height;
947 decoder->emit_bitmap (period, image, rect);
951 /** XXX: could use mmap? */
953 copy_in_bits (boost::filesystem::path from, boost::filesystem::path to, std::function<void (float)> progress)
955 dcp::File f(from, "rb");
957 throw OpenFileError (from, errno, OpenFileError::READ);
959 dcp::File t(to, "wb");
961 throw OpenFileError (to, errno, OpenFileError::WRITE);
964 /* on the order of a second's worth of copying */
965 boost::uintmax_t const chunk = 20 * 1024 * 1024;
967 std::vector<uint8_t> buffer(chunk);
969 auto const total = dcp::filesystem::file_size(from);
970 boost::uintmax_t remaining = total;
973 boost::uintmax_t this_time = min (chunk, remaining);
974 size_t N = f.read(buffer.data(), 1, chunk);
976 throw ReadFileError (from, errno);
979 N = t.write(buffer.data(), 1, this_time);
981 throw WriteFileError (to, errno);
984 progress (1 - float(remaining) / total);
985 remaining -= this_time;
991 scale_for_display (dcp::Size s, dcp::Size display_container, dcp::Size film_container, PixelQuanta quanta)
993 /* Now scale it down if the display container is smaller than the film container */
994 if (display_container != film_container) {
995 float const scale = min (
996 float (display_container.width) / film_container.width,
997 float (display_container.height) / film_container.height
1000 s.width = lrintf (s.width * scale);
1001 s.height = lrintf (s.height * scale);
1002 s = quanta.round (s);
1010 decrypt_kdm_with_helpful_error (dcp::EncryptedKDM kdm)
1013 return dcp::DecryptedKDM (kdm, Config::instance()->decryption_chain()->key().get());
1014 } catch (dcp::KDMDecryptionError& e) {
1015 /* Try to flesh out the error a bit */
1016 auto const kdm_subject_name = kdm.recipient_x509_subject_name();
1017 bool on_chain = false;
1018 auto dc = Config::instance()->decryption_chain();
1019 for (auto i: dc->root_to_leaf()) {
1020 if (i.subject() == kdm_subject_name) {
1025 throw KDMError(variant::insert_dcpomatic(_("This KDM was not made for %1's decryption certificate.")), e.what());
1026 } else if (kdm_subject_name != dc->leaf().subject()) {
1027 throw KDMError(variant::insert_dcpomatic(_("This KDM was made for %1 but not for its leaf certificate.")), e.what());
1035 boost::filesystem::path
1036 default_font_file ()
1038 boost::filesystem::path liberation_normal;
1040 liberation_normal = resources_path() / "LiberationSans-Regular.ttf";
1041 if (!dcp::filesystem::exists(liberation_normal)) {
1042 /* Hack for unit tests */
1043 liberation_normal = resources_path() / "fonts" / "LiberationSans-Regular.ttf";
1045 } catch (boost::filesystem::filesystem_error& e) {
1049 if (!dcp::filesystem::exists(liberation_normal)) {
1050 liberation_normal = "/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf";
1052 if (!dcp::filesystem::exists(liberation_normal)) {
1053 liberation_normal = "/usr/share/fonts/liberation-sans/LiberationSans-Regular.ttf";
1056 return liberation_normal;
1060 /* Set to 1 to print the IDs of some of our threads to stdout on creation */
1061 #define DCPOMATIC_DEBUG_THREADS 0
1063 #if DCPOMATIC_DEBUG_THREADS
1065 start_of_thread (string name)
1067 std::cout << "THREAD:" << name << ":" << std::hex << pthread_self() << "\n";
1071 start_of_thread (string)
1079 error_details(boost::system::error_code ec)
1081 return String::compose("%1:%2:%3", ec.category().name(), ec.value(), ec.message());
1086 contains_assetmap(boost::filesystem::path dir)
1088 return dcp::filesystem::is_regular_file(dir / "ASSETMAP") || dcp::filesystem::is_regular_file(dir / "ASSETMAP.xml");
1093 word_wrap(string input, int columns)
1096 UErrorCode status = U_ZERO_ERROR;
1097 auto iter = icu::BreakIterator::createLineInstance(locale, status);
1098 dcp::ScopeGuard sg = [iter]() { delete iter; };
1099 if (U_FAILURE(status)) {
1103 auto input_icu = icu::UnicodeString::fromUTF8(icu::StringPiece(input));
1104 iter->setText(input_icu);
1108 while (position < input_icu.length()) {
1109 int end_of_line = iter->preceding(position + columns + 1);
1110 icu::UnicodeString line;
1111 if (end_of_line <= position) {
1112 /* There's no good line-break position; just break in the middle of a word */
1113 line = input_icu.tempSubString(position, columns);
1114 position += columns;
1116 line = input_icu.tempSubString(position, end_of_line - position);
1117 position = end_of_line;
1119 line.toUTF8String(output);
1127 #ifdef DCPOMATIC_GROK
1129 setup_grok_library_path()
1131 static std::string old_path;
1132 if (old_path.empty()) {
1133 auto const old = getenv("LD_LIRARY_PATH");
1138 auto const grok = Config::instance()->grok();
1139 if (!grok || grok->binary_location.empty()) {
1140 setenv("LD_LIRARY_PATH", old_path.c_str(), 1);
1144 std::string new_path = old_path;
1145 if (!new_path.empty()) {
1148 new_path += grok->binary_location.string();
1150 setenv("LD_LIBRARY_PATH", new_path.c_str(), 1);
1156 screen_names_to_string(vector<string> names)
1158 if (names.empty()) {
1162 auto number = [](string const& s) {
1163 return s.find_first_not_of("0123456789") == string::npos;
1166 if (std::find_if(names.begin(), names.end(), [number](string const& s) { return !number(s); }) == names.end()) {
1167 std::sort(names.begin(), names.end(), [](string const& a, string const& b) {
1168 return dcp::raw_convert<int>(a) < dcp::raw_convert<int>(b);
1171 std::sort(names.begin(), names.end());
1175 for (auto const& name: names) {
1176 result += name + ", ";
1179 return result.substr(0, result.length() - 2);
1186 return String::compose(_("Please report this problem by using Help -> Report a problem or via email to %1"), variant::report_problem_email());
1191 join_strings(vector<string> const& in, string const& separator)
1197 return std::accumulate(std::next(in.begin()), in.end(), in.front(), [separator](string a, string b) {
1198 return a + separator + b;