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"
37 #include "dcp_content_type.h"
38 #include "dcpomatic_log.h"
40 #include "exceptions.h"
41 #include "ffmpeg_image_proxy.h"
46 #include "job_manager.h"
49 #include "render_text.h"
50 #include "scope_guard.h"
51 #include "string_text.h"
52 #include "text_decoder.h"
54 #include "video_content.h"
55 #include <dcp/atmos_asset.h>
56 #include <dcp/decrypted_kdm.h>
57 #include <dcp/locale_convert.h>
58 #include <dcp/picture_asset.h>
59 #include <dcp/raw_convert.h>
60 #include <dcp/sound_asset.h>
61 #include <dcp/subtitle_asset.h>
63 #include <dcp/warnings.h>
64 LIBDCP_DISABLE_WARNINGS
66 #include <libavfilter/avfilter.h>
67 #include <libavformat/avformat.h>
68 #include <libavcodec/avcodec.h>
70 LIBDCP_ENABLE_WARNINGS
71 #include <curl/curl.h>
73 #include <pangomm/init.h>
74 #include <unicode/utypes.h>
75 #include <unicode/unistr.h>
76 #include <unicode/translit.h>
77 #include <unicode/brkiter.h>
78 #include <boost/algorithm/string.hpp>
79 #include <boost/range/algorithm/replace_if.hpp>
80 #include <boost/thread.hpp>
81 #include <boost/filesystem.hpp>
82 LIBDCP_DISABLE_WARNINGS
83 #include <boost/locale.hpp>
84 LIBDCP_ENABLE_WARNINGS
85 #ifdef DCPOMATIC_WINDOWS
94 #ifdef DCPOMATIC_POSIX
102 using std::bad_alloc;
107 using std::make_pair;
108 using std::make_shared;
113 using std::set_terminate;
114 using std::shared_ptr;
119 using boost::optional;
120 using boost::lexical_cast;
121 using boost::bad_lexical_cast;
122 using boost::scoped_array;
124 using dcp::raw_convert;
125 using dcp::locale_convert;
126 using namespace dcpomatic;
129 /** Path to our executable, required by the stacktrace stuff and filled
130 * in during App::onInit().
133 bool is_batch_converter = false;
134 static boost::thread::id ui_thread;
135 static boost::filesystem::path backtrace_file;
137 /** Convert some number of seconds to a string representation
138 * in hours, minutes and seconds.
141 * @return String of the form H:M:S (where H is hours, M
142 * is minutes and S is seconds).
145 seconds_to_hms (int s)
153 snprintf (buffer, sizeof(buffer), "%d:%02d:%02d", h, m, s);
158 time_to_hmsf (DCPTime time, Frame rate)
160 Frame f = time.frames_round (rate);
169 snprintf (buffer, sizeof(buffer), "%d:%02d:%02d.%d", h, m, s, static_cast<int>(f));
173 /** @param s Number of seconds.
174 * @return String containing an approximate description of s (e.g. "about 2 hours")
177 seconds_to_approximate_hms (int s)
187 bool minutes = h < 6 && m > 0;
188 bool seconds = h == 0 && m < 10 && s > 0;
190 if (m > 30 && !minutes) {
191 /* round up the hours */
194 if (s > 30 && !seconds) {
195 /* round up the minutes */
205 /// TRANSLATORS: h here is an abbreviation for hours
206 ap += locale_convert<string>(h) + _("h");
208 if (minutes || seconds) {
214 /// TRANSLATORS: m here is an abbreviation for minutes
215 ap += locale_convert<string>(m) + _("m");
224 /// TRANSLATORS: s here is an abbreviation for seconds
225 ap += locale_convert<string>(s) + _("s");
232 seconds (struct timeval t)
234 return t.tv_sec + (double (t.tv_usec) / 1e6);
237 #ifdef DCPOMATIC_WINDOWS
239 /** Resolve symbol name and source location given the path to the executable */
241 addr2line (void const * const addr)
243 char addr2line_cmd[512] = { 0 };
244 sprintf (addr2line_cmd, "addr2line -f -p -e %.256s %p > %s", program_name.c_str(), addr, backtrace_file.string().c_str());
245 return system(addr2line_cmd);
248 LIBDCP_DISABLE_WARNINGS
249 /** This is called when C signals occur on Windows (e.g. SIGSEGV)
250 * (NOT C++ exceptions!). We write a backtrace to backtrace_file by dark means.
251 * Adapted from code here: http://spin.atomicobject.com/2013/01/13/exceptions-stack-traces-c/
254 exception_handler(struct _EXCEPTION_POINTERS * info)
256 dcp::File f(backtrace_file, "w");
258 fprintf(f.get(), "C-style exception %d\n", info->ExceptionRecord->ExceptionCode);
262 if (info->ExceptionRecord->ExceptionCode != EXCEPTION_STACK_OVERFLOW) {
263 CONTEXT* context = info->ContextRecord;
264 SymInitialize (GetCurrentProcess (), 0, true);
266 STACKFRAME frame = { 0 };
268 /* setup initial stack frame */
270 frame.AddrPC.Offset = context->Rip;
271 frame.AddrStack.Offset = context->Rsp;
272 frame.AddrFrame.Offset = context->Rbp;
274 frame.AddrPC.Offset = context->Eip;
275 frame.AddrStack.Offset = context->Esp;
276 frame.AddrFrame.Offset = context->Ebp;
278 frame.AddrPC.Mode = AddrModeFlat;
279 frame.AddrStack.Mode = AddrModeFlat;
280 frame.AddrFrame.Mode = AddrModeFlat;
284 IMAGE_FILE_MACHINE_I386,
285 GetCurrentProcess (),
290 SymFunctionTableAccess,
295 addr2line((void *) frame.AddrPC.Offset);
299 addr2line ((void *) info->ContextRecord->Rip);
301 addr2line ((void *) info->ContextRecord->Eip);
305 return EXCEPTION_CONTINUE_SEARCH;
307 LIBDCP_ENABLE_WARNINGS
311 set_backtrace_file (boost::filesystem::path p)
316 /** This is called when there is an unhandled exception. Any
317 * backtrace in this function is useless on Windows as the stack has
318 * already been unwound from the throw; we have the gdb wrap hack to
325 static bool tried_throw = false;
326 // try once to re-throw currently active exception
332 catch (const std::exception &e) {
333 std::cerr << __FUNCTION__ << " caught unhandled exception. what(): "
334 << e.what() << std::endl;
337 std::cerr << __FUNCTION__ << " caught unknown/unhandled exception."
345 dcpomatic_setup_path_encoding ()
347 #ifdef DCPOMATIC_WINDOWS
348 /* Dark voodoo which, I think, gets boost::filesystem::path to
349 correctly convert UTF-8 strings to paths, and also paths
350 back to UTF-8 strings (on path::string()).
352 After this, constructing boost::filesystem::paths from strings
353 converts from UTF-8 to UTF-16 inside the path. Then
354 path::string().c_str() gives UTF-8 and
355 path::c_str() gives UTF-16.
357 This is all Windows-only. AFAICT Linux/OS X use UTF-8 everywhere,
358 so things are much simpler.
360 std::locale::global (boost::locale::generator().generate (""));
361 boost::filesystem::path::imbue (std::locale ());
366 class LogSink : public Kumu::ILogSink
370 LogSink (LogSink const&) = delete;
371 LogSink& operator= (LogSink const&) = delete;
373 void WriteEntry(const Kumu::LogEntry& entry) override {
374 Kumu::AutoMutex L(m_lock);
375 WriteEntryToListeners(entry);
376 if (entry.TestFilter(m_filter)) {
378 entry.CreateStringWithOptions(buffer, m_options);
379 LOG_GENERAL("asdcplib: %1", buffer);
386 capture_asdcp_logs ()
388 static LogSink log_sink;
389 Kumu::SetDefaultLogSink(&log_sink);
395 ffmpeg_log_callback(void* ptr, int level, const char* fmt, va_list vl)
397 if (level > AV_LOG_WARNING) {
402 static int prefix = 0;
403 av_log_format_line(ptr, level, fmt, vl, line, sizeof (line), &prefix);
405 boost::algorithm::trim(str);
406 dcpomatic_log->log(String::compose("FFmpeg: %1", str), LogEntry::TYPE_GENERAL);
412 capture_ffmpeg_logs()
414 av_log_set_callback(ffmpeg_log_callback);
418 /** Call the required functions to set up DCP-o-matic's static arrays, etc.
419 * Must be called from the UI thread, if there is one.
424 #ifdef DCPOMATIC_WINDOWS
425 boost::filesystem::path p = g_get_user_config_dir ();
426 p /= "backtrace.txt";
427 set_backtrace_file (p);
428 SetUnhandledExceptionFilter(exception_handler);
431 #ifdef DCPOMATIC_HAVE_AVREGISTER
432 LIBDCP_DISABLE_WARNINGS
434 avfilter_register_all ();
435 LIBDCP_ENABLE_WARNINGS
439 /* Add our library directory to the libltdl search path so that
440 xmlsec can find xmlsec1-openssl.
442 auto lib = directory_containing_executable().parent_path();
444 setenv ("LTDL_LIBRARY_PATH", lib.c_str (), 1);
447 set_terminate (terminate);
449 #ifdef DCPOMATIC_WINDOWS
450 putenv ("PANGOCAIRO_BACKEND=fontconfig");
451 putenv (String::compose("FONTCONFIG_PATH=%1", resources_path().string()).c_str());
455 setenv ("PANGOCAIRO_BACKEND", "fontconfig", 1);
456 setenv ("FONTCONFIG_PATH", resources_path().string().c_str(), 1);
460 dcp::init (libdcp_resources_path());
462 #if defined(DCPOMATIC_WINDOWS) || defined(DCPOMATIC_OSX)
463 /* Render something to fontconfig to create its cache */
464 list<StringText> subs;
465 dcp::SubtitleString ss(
466 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,
467 "Hello dolly", dcp::Effect::NONE, dcp::Colour(), dcp::Time(), dcp::Time(), 0
469 subs.push_back(StringText(ss, 0, {}, dcp::SubtitleStandard::SMPTE_2014));
470 render_text (subs, dcp::Size(640, 480), DCPTime(), 24);
473 Ratio::setup_ratios ();
474 PresetColourConversion::setup_colour_conversion_presets ();
475 DCPContentType::setup_dcp_content_types ();
476 Filter::setup_filters ();
477 CinemaSoundProcessor::setup_cinema_sound_processors ();
478 AudioProcessor::setup_audio_processors ();
480 curl_global_init (CURL_GLOBAL_ALL);
482 ui_thread = boost::this_thread::get_id ();
484 capture_asdcp_logs ();
485 capture_ffmpeg_logs();
488 #ifdef DCPOMATIC_WINDOWS
489 boost::filesystem::path
493 GetModuleFileName (0, buffer, 512 * sizeof(wchar_t));
494 boost::filesystem::path p (buffer);
495 p = p.parent_path ();
496 p = p.parent_path ();
503 boost::filesystem::path
506 return "DCP-o-matic 2.app/Contents/Resources";
511 dcpomatic_setup_gettext_i18n (string lang)
513 #ifdef DCPOMATIC_LINUX
517 if (!lang.empty ()) {
518 /* Override our environment language. Note that the caller must not
519 free the string passed into putenv().
521 string s = String::compose ("LANGUAGE=%1", lang);
522 putenv (strdup (s.c_str ()));
523 s = String::compose ("LANG=%1", lang);
524 putenv (strdup (s.c_str ()));
525 s = String::compose ("LC_ALL=%1", lang);
526 putenv (strdup (s.c_str ()));
529 setlocale (LC_ALL, "");
530 textdomain ("libdcpomatic2");
532 #if defined(DCPOMATIC_WINDOWS) || defined(DCPOMATIC_OSX)
533 bindtextdomain ("libdcpomatic2", mo_path().string().c_str());
534 bind_textdomain_codeset ("libdcpomatic2", "UTF8");
537 #ifdef DCPOMATIC_LINUX
538 bindtextdomain ("libdcpomatic2", LINUX_LOCALE_PREFIX);
542 /** Compute a digest of the first and last `size' bytes of a set of files. */
544 digest_head_tail (vector<boost::filesystem::path> files, boost::uintmax_t size)
546 boost::scoped_array<char> buffer (new char[size]);
550 boost::uintmax_t to_do = size;
551 char* p = buffer.get ();
553 while (i < int64_t (files.size()) && to_do > 0) {
554 dcp::File f(files[i], "rb");
556 throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
559 boost::uintmax_t this_time = min (to_do, boost::filesystem::file_size (files[i]));
560 f.checked_read(p, this_time);
566 digester.add (buffer.get(), size - to_do);
571 i = files.size() - 1;
572 while (i >= 0 && to_do > 0) {
573 dcp::File f(files[i], "rb");
575 throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
578 boost::uintmax_t this_time = min (to_do, boost::filesystem::file_size (files[i]));
579 f.seek(-this_time, SEEK_END);
580 f.checked_read(p, this_time);
586 digester.add (buffer.get(), size - to_do);
588 return digester.get ();
593 simple_digest (vector<boost::filesystem::path> paths)
595 return digest_head_tail(paths, 1000000) + raw_convert<string>(boost::filesystem::file_size(paths.front()));
599 /** Trip an assert if the caller is not in the UI thread */
603 DCPOMATIC_ASSERT (boost::this_thread::get_id() == ui_thread);
607 audio_channel_name (int c)
609 DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
611 /// TRANSLATORS: these are the names of audio channels; Lfe (sub) is the low-frequency
612 /// enhancement channel (sub-woofer).
613 string const channels[] = {
620 _("Hearing impaired"),
621 _("Visually impaired"),
624 _("Left rear surround"),
625 _("Right rear surround"),
627 _("D-BOX secondary"),
636 short_audio_channel_name (int c)
638 DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
640 /// TRANSLATORS: these are short names of audio channels; Lfe is the low-frequency
641 /// enhancement channel (sub-woofer). HI is the hearing-impaired audio track and
642 /// VI is the visually-impaired audio track (audio describe). DBP is the D-BOX
643 /// primary channel and DBS is the D-BOX secondary channel.
644 string const channels[] = {
668 valid_image_file (boost::filesystem::path f)
670 if (boost::starts_with (f.leaf().string(), "._")) {
674 auto ext = f.extension().string();
675 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
677 ext == ".tif" || ext == ".tiff" || ext == ".jpg" || ext == ".jpeg" ||
678 ext == ".png" || ext == ".bmp" || ext == ".tga" || ext == ".dpx" ||
679 ext == ".j2c" || ext == ".j2k" || ext == ".jp2" || ext == ".exr" ||
680 ext == ".jpf" || ext == ".psd"
685 valid_sound_file (boost::filesystem::path f)
687 if (boost::starts_with (f.leaf().string(), "._")) {
691 auto ext = f.extension().string();
692 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
693 return (ext == ".wav" || ext == ".mp3" || ext == ".aif" || ext == ".aiff");
697 valid_j2k_file (boost::filesystem::path f)
699 auto ext = f.extension().string();
700 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
701 return (ext == ".j2k" || ext == ".j2c" || ext == ".jp2");
705 tidy_for_filename (string f)
707 boost::replace_if (f, boost::is_any_of ("\\/:"), '_');
712 fit_ratio_within (float ratio, dcp::Size full_frame)
714 if (ratio < full_frame.ratio ()) {
715 return dcp::Size (lrintf (full_frame.height * ratio), full_frame.height);
718 return dcp::Size (full_frame.width, lrintf (full_frame.width / ratio));
723 asset_filename (shared_ptr<dcp::Asset> asset, string type, int reel_index, int reel_count, optional<string> summary, string extension)
725 dcp::NameFormat::Map values;
727 values['r'] = raw_convert<string>(reel_index + 1);
728 values['n'] = raw_convert<string>(reel_count);
730 values['c'] = careful_string_filter(summary.get());
732 return Config::instance()->dcp_asset_filename_format().get(values, "_" + asset->id() + extension);
737 video_asset_filename (shared_ptr<dcp::PictureAsset> asset, int reel_index, int reel_count, optional<string> summary)
739 return asset_filename(asset, "j2c", reel_index, reel_count, summary, ".mxf");
744 audio_asset_filename (shared_ptr<dcp::SoundAsset> asset, int reel_index, int reel_count, optional<string> summary)
746 return asset_filename(asset, "pcm", reel_index, reel_count, summary, ".mxf");
751 subtitle_asset_filename (shared_ptr<dcp::SubtitleAsset> asset, int reel_index, int reel_count, optional<string> summary, string extension)
753 return asset_filename(asset, "sub", reel_index, reel_count, summary, extension);
758 atmos_asset_filename (shared_ptr<dcp::AtmosAsset> asset, int reel_index, int reel_count, optional<string> summary)
760 return asset_filename(asset, "atmos", reel_index, reel_count, summary, ".mxf");
765 careful_string_filter (string s)
767 /* Filter out `bad' characters which `may' cause problems with some systems (either for DCP name or filename).
768 There's no apparent list of what really is allowed, so this is a guess.
769 Safety first and all that.
772 /* First transliterate using libicu to try to remove accents in a "nice" way */
773 auto transliterated = icu::UnicodeString::fromUTF8(icu::StringPiece(s));
774 auto status = U_ZERO_ERROR;
775 auto transliterator = icu::Transliterator::createInstance("NFD; [:M:] Remove; NFC", UTRANS_FORWARD, status);
776 transliterator->transliterate(transliterated);
778 /* Some things are missed by ICU's transliterator */
779 std::map<wchar_t, wchar_t> replacements = {
784 icu::UnicodeString transliterated_more;
785 for (int i = 0; i < transliterated.length(); ++i) {
786 auto replacement = replacements.find(transliterated[i]);
787 if (replacement != replacements.end()) {
788 transliterated_more += replacement->second;
790 transliterated_more += transliterated[i];
794 /* Then remove anything that's not in a very limited character set */
796 wstring const allowed = L"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_%.+";
797 for (int i = 0; i < transliterated_more.length(); ++i) {
798 wchar_t c = transliterated_more[i];
799 if (allowed.find(c) != string::npos) {
804 return boost::locale::conv::utf_to_utf<char>(out);
807 /** @param mapped List of mapped audio channels from a Film.
808 * @param channels Total number of channels in the Film.
809 * @return First: number of non-LFE soundtrack channels (L/R/C/Ls/Rs/Lc/Rc/Bsl/Bsr), second: number of LFE channels.
812 audio_channel_types (list<int> mapped, int channels)
817 for (auto i: mapped) {
819 /* This channel is mapped but is not included in the DCP */
823 switch (static_cast<dcp::Channel>(i)) {
824 case dcp::Channel::LFE:
827 case dcp::Channel::LEFT:
828 case dcp::Channel::RIGHT:
829 case dcp::Channel::CENTRE:
830 case dcp::Channel::LS:
831 case dcp::Channel::RS:
832 case dcp::Channel::BSL:
833 case dcp::Channel::BSR:
836 case dcp::Channel::HI:
837 case dcp::Channel::VI:
838 case dcp::Channel::MOTION_DATA:
839 case dcp::Channel::SYNC_SIGNAL:
840 case dcp::Channel::SIGN_LANGUAGE:
841 case dcp::Channel::CHANNEL_COUNT:
846 return make_pair (non_lfe, lfe);
849 shared_ptr<AudioBuffers>
850 remap (shared_ptr<const AudioBuffers> input, int output_channels, AudioMapping map)
852 auto mapped = make_shared<AudioBuffers>(output_channels, input->frames());
853 mapped->make_silent ();
855 int to_do = min (map.input_channels(), input->channels());
857 for (int i = 0; i < to_do; ++i) {
858 for (int j = 0; j < mapped->channels(); ++j) {
859 if (map.get(i, j) > 0) {
860 mapped->accumulate_channel(
874 increment_eyes (Eyes e)
876 if (e == Eyes::LEFT) {
885 utf8_strlen (string s)
887 size_t const len = s.length ();
889 for (size_t i = 0; i < len; ++i) {
890 unsigned char c = s[i];
891 if ((c & 0xe0) == 0xc0) {
893 } else if ((c & 0xf0) == 0xe0) {
895 } else if ((c & 0xf8) == 0xf0) {
904 /** @param size Size of picture that the subtitle will be overlaid onto */
906 emit_subtitle_image (ContentTimePeriod period, dcp::SubtitleImage sub, dcp::Size size, shared_ptr<TextDecoder> decoder)
908 /* XXX: this is rather inefficient; decoding the image just to get its size */
909 FFmpegImageProxy proxy (sub.png_image());
910 auto image = proxy.image(Image::Alignment::PADDED).image;
911 /* set up rect with height and width */
912 dcpomatic::Rect<double> rect(0, 0, image->size().width / double(size.width), image->size().height / double(size.height));
914 /* add in position */
916 switch (sub.h_align()) {
917 case dcp::HAlign::LEFT:
918 rect.x += sub.h_position();
920 case dcp::HAlign::CENTER:
921 rect.x += 0.5 + sub.h_position() - rect.width / 2;
923 case dcp::HAlign::RIGHT:
924 rect.x += 1 - sub.h_position() - rect.width;
928 switch (sub.v_align()) {
929 case dcp::VAlign::TOP:
930 rect.y += sub.v_position();
932 case dcp::VAlign::CENTER:
933 rect.y += 0.5 + sub.v_position() - rect.height / 2;
935 case dcp::VAlign::BOTTOM:
936 rect.y += 1 - sub.v_position() - rect.height;
940 decoder->emit_bitmap (period, image, rect);
944 /** XXX: could use mmap? */
946 copy_in_bits (boost::filesystem::path from, boost::filesystem::path to, std::function<void (float)> progress)
948 dcp::File f(from, "rb");
950 throw OpenFileError (from, errno, OpenFileError::READ);
952 dcp::File t(to, "wb");
954 throw OpenFileError (to, errno, OpenFileError::WRITE);
957 /* on the order of a second's worth of copying */
958 boost::uintmax_t const chunk = 20 * 1024 * 1024;
960 std::vector<uint8_t> buffer(chunk);
962 boost::uintmax_t const total = boost::filesystem::file_size (from);
963 boost::uintmax_t remaining = total;
966 boost::uintmax_t this_time = min (chunk, remaining);
967 size_t N = f.read(buffer.data(), 1, chunk);
969 throw ReadFileError (from, errno);
972 N = t.write(buffer.data(), 1, this_time);
974 throw WriteFileError (to, errno);
977 progress (1 - float(remaining) / total);
978 remaining -= this_time;
984 scale_for_display (dcp::Size s, dcp::Size display_container, dcp::Size film_container, PixelQuanta quanta)
986 /* Now scale it down if the display container is smaller than the film container */
987 if (display_container != film_container) {
988 float const scale = min (
989 float (display_container.width) / film_container.width,
990 float (display_container.height) / film_container.height
993 s.width = lrintf (s.width * scale);
994 s.height = lrintf (s.height * scale);
995 s = quanta.round (s);
1003 decrypt_kdm_with_helpful_error (dcp::EncryptedKDM kdm)
1006 return dcp::DecryptedKDM (kdm, Config::instance()->decryption_chain()->key().get());
1007 } catch (dcp::KDMDecryptionError& e) {
1008 /* Try to flesh out the error a bit */
1009 auto const kdm_subject_name = kdm.recipient_x509_subject_name();
1010 bool on_chain = false;
1011 auto dc = Config::instance()->decryption_chain();
1012 for (auto i: dc->root_to_leaf()) {
1013 if (i.subject() == kdm_subject_name) {
1018 throw KDMError (_("This KDM was not made for DCP-o-matic's decryption certificate."), e.what());
1019 } else if (kdm_subject_name != dc->leaf().subject()) {
1020 throw KDMError (_("This KDM was made for DCP-o-matic but not for its leaf certificate."), e.what());
1028 boost::filesystem::path
1029 default_font_file ()
1031 boost::filesystem::path liberation_normal;
1033 liberation_normal = resources_path() / "LiberationSans-Regular.ttf";
1034 if (!boost::filesystem::exists (liberation_normal)) {
1035 /* Hack for unit tests */
1036 liberation_normal = resources_path() / "fonts" / "LiberationSans-Regular.ttf";
1038 } catch (boost::filesystem::filesystem_error& e) {
1042 if (!boost::filesystem::exists(liberation_normal)) {
1043 liberation_normal = "/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf";
1045 if (!boost::filesystem::exists(liberation_normal)) {
1046 liberation_normal = "/usr/share/fonts/liberation-sans/LiberationSans-Regular.ttf";
1049 return liberation_normal;
1053 /* Set to 1 to print the IDs of some of our threads to stdout on creation */
1054 #define DCPOMATIC_DEBUG_THREADS 0
1056 #if DCPOMATIC_DEBUG_THREADS
1058 start_of_thread (string name)
1060 std::cout << "THREAD:" << name << ":" << std::hex << pthread_self() << "\n";
1064 start_of_thread (string)
1072 error_details(boost::system::error_code ec)
1074 return String::compose("%1:%2:%3", ec.category().name(), ec.value(), ec.message());
1079 contains_assetmap(boost::filesystem::path dir)
1081 return boost::filesystem::is_regular_file(dir / "ASSETMAP") || boost::filesystem::is_regular_file(dir / "ASSETMAP.xml");
1086 word_wrap(string input, int columns)
1089 UErrorCode status = U_ZERO_ERROR;
1090 auto iter = icu::BreakIterator::createLineInstance(locale, status);
1091 ScopeGuard sg = [iter]() { delete iter; };
1092 if (U_FAILURE(status)) {
1096 auto input_icu = icu::UnicodeString::fromUTF8(icu::StringPiece(input));
1097 iter->setText(input_icu);
1101 while (position < input_icu.length()) {
1102 int end_of_line = iter->preceding(position + columns + 1);
1103 icu::UnicodeString line;
1104 if (end_of_line <= position) {
1105 /* There's no good line-break position; just break in the middle of a word */
1106 line = input_icu.tempSubString(position, columns);
1107 position += columns;
1109 line = input_icu.tempSubString(position, end_of_line - position);
1110 position = end_of_line;
1112 line.toUTF8String(output);