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>
58 #include <dcp/locale_convert.h>
59 #include <dcp/picture_asset.h>
60 #include <dcp/raw_convert.h>
61 #include <dcp/sound_asset.h>
62 #include <dcp/subtitle_asset.h>
64 #include <dcp/warnings.h>
65 LIBDCP_DISABLE_WARNINGS
67 #include <libavfilter/avfilter.h>
68 #include <libavformat/avformat.h>
69 #include <libavcodec/avcodec.h>
71 LIBDCP_ENABLE_WARNINGS
72 #include <curl/curl.h>
74 #include <pangomm/init.h>
75 #include <unicode/utypes.h>
76 #include <unicode/unistr.h>
77 #include <unicode/translit.h>
78 #include <unicode/brkiter.h>
79 #include <boost/algorithm/string.hpp>
80 #include <boost/range/algorithm/replace_if.hpp>
81 #include <boost/thread.hpp>
82 #include <boost/filesystem.hpp>
83 LIBDCP_DISABLE_WARNINGS
84 #include <boost/locale.hpp>
85 LIBDCP_ENABLE_WARNINGS
86 #ifdef DCPOMATIC_WINDOWS
95 #ifdef DCPOMATIC_POSIX
106 using std::make_pair;
107 using std::make_shared;
111 using std::set_terminate;
112 using std::shared_ptr;
116 using boost::optional;
118 using dcp::raw_convert;
119 using dcp::locale_convert;
120 using namespace dcpomatic;
123 /** Path to our executable, required by the stacktrace stuff and filled
124 * in during App::onInit().
127 bool is_batch_converter = false;
128 static boost::thread::id ui_thread;
129 static boost::filesystem::path backtrace_file;
131 /** Convert some number of seconds to a string representation
132 * in hours, minutes and seconds.
135 * @return String of the form H:M:S (where H is hours, M
136 * is minutes and S is seconds).
139 seconds_to_hms (int s)
147 snprintf (buffer, sizeof(buffer), "%d:%02d:%02d", h, m, s);
152 time_to_hmsf (DCPTime time, Frame rate)
154 Frame f = time.frames_round (rate);
163 snprintf (buffer, sizeof(buffer), "%d:%02d:%02d.%d", h, m, s, static_cast<int>(f));
167 /** @param s Number of seconds.
168 * @return String containing an approximate description of s (e.g. "about 2 hours")
171 seconds_to_approximate_hms (int s)
181 bool minutes = h < 6 && m > 0;
182 bool seconds = h == 0 && m < 10 && s > 0;
184 if (m > 30 && !minutes) {
185 /* round up the hours */
188 if (s > 30 && !seconds) {
189 /* round up the minutes */
199 /// TRANSLATORS: h here is an abbreviation for hours
200 ap += locale_convert<string>(h) + _("h");
202 if (minutes || seconds) {
208 /// TRANSLATORS: m here is an abbreviation for minutes
209 ap += locale_convert<string>(m) + _("m");
218 /// TRANSLATORS: s here is an abbreviation for seconds
219 ap += locale_convert<string>(s) + _("s");
226 seconds (struct timeval t)
228 return t.tv_sec + (double (t.tv_usec) / 1e6);
231 #ifdef DCPOMATIC_WINDOWS
233 /** Resolve symbol name and source location given the path to the executable */
235 addr2line (void const * const addr)
237 char addr2line_cmd[512] = { 0 };
238 sprintf (addr2line_cmd, "addr2line -f -p -e %.256s %p > %s", program_name.c_str(), addr, backtrace_file.string().c_str());
239 return system(addr2line_cmd);
242 LIBDCP_DISABLE_WARNINGS
243 /** This is called when C signals occur on Windows (e.g. SIGSEGV)
244 * (NOT C++ exceptions!). We write a backtrace to backtrace_file by dark means.
245 * Adapted from code here: http://spin.atomicobject.com/2013/01/13/exceptions-stack-traces-c/
248 exception_handler(struct _EXCEPTION_POINTERS * info)
250 dcp::File f(backtrace_file, "w");
252 fprintf(f.get(), "C-style exception %d\n", info->ExceptionRecord->ExceptionCode);
256 if (info->ExceptionRecord->ExceptionCode != EXCEPTION_STACK_OVERFLOW) {
257 CONTEXT* context = info->ContextRecord;
258 SymInitialize (GetCurrentProcess (), 0, true);
260 STACKFRAME frame = { 0 };
262 /* setup initial stack frame */
264 frame.AddrPC.Offset = context->Rip;
265 frame.AddrStack.Offset = context->Rsp;
266 frame.AddrFrame.Offset = context->Rbp;
268 frame.AddrPC.Offset = context->Eip;
269 frame.AddrStack.Offset = context->Esp;
270 frame.AddrFrame.Offset = context->Ebp;
272 frame.AddrPC.Mode = AddrModeFlat;
273 frame.AddrStack.Mode = AddrModeFlat;
274 frame.AddrFrame.Mode = AddrModeFlat;
278 IMAGE_FILE_MACHINE_I386,
279 GetCurrentProcess (),
284 SymFunctionTableAccess,
289 addr2line((void *) frame.AddrPC.Offset);
293 addr2line ((void *) info->ContextRecord->Rip);
295 addr2line ((void *) info->ContextRecord->Eip);
299 return EXCEPTION_CONTINUE_SEARCH;
301 LIBDCP_ENABLE_WARNINGS
305 set_backtrace_file (boost::filesystem::path p)
310 /** This is called when there is an unhandled exception. Any
311 * backtrace in this function is useless on Windows as the stack has
312 * already been unwound from the throw; we have the gdb wrap hack to
319 static bool tried_throw = false;
320 // try once to re-throw currently active exception
326 catch (const std::exception &e) {
327 std::cerr << __FUNCTION__ << " caught unhandled exception. what(): "
328 << e.what() << std::endl;
331 std::cerr << __FUNCTION__ << " caught unknown/unhandled exception."
339 dcpomatic_setup_path_encoding ()
341 #ifdef DCPOMATIC_WINDOWS
342 /* Dark voodoo which, I think, gets boost::filesystem::path to
343 correctly convert UTF-8 strings to paths, and also paths
344 back to UTF-8 strings (on path::string()).
346 After this, constructing boost::filesystem::paths from strings
347 converts from UTF-8 to UTF-16 inside the path. Then
348 path::string().c_str() gives UTF-8 and
349 path::c_str() gives UTF-16.
351 This is all Windows-only. AFAICT Linux/OS X use UTF-8 everywhere,
352 so things are much simpler.
354 std::locale::global (boost::locale::generator().generate (""));
355 boost::filesystem::path::imbue (std::locale ());
360 class LogSink : public Kumu::ILogSink
364 LogSink (LogSink const&) = delete;
365 LogSink& operator= (LogSink const&) = delete;
367 void WriteEntry(const Kumu::LogEntry& entry) override {
368 Kumu::AutoMutex L(m_lock);
369 WriteEntryToListeners(entry);
370 if (entry.TestFilter(m_filter)) {
372 entry.CreateStringWithOptions(buffer, m_options);
373 LOG_GENERAL("asdcplib: %1", buffer);
380 capture_asdcp_logs ()
382 static LogSink log_sink;
383 Kumu::SetDefaultLogSink(&log_sink);
389 ffmpeg_log_callback(void* ptr, int level, const char* fmt, va_list vl)
391 if (level > AV_LOG_WARNING) {
396 static int prefix = 0;
397 av_log_format_line(ptr, level, fmt, vl, line, sizeof (line), &prefix);
399 boost::algorithm::trim(str);
400 dcpomatic_log->log(String::compose("FFmpeg: %1", str), LogEntry::TYPE_GENERAL);
405 capture_ffmpeg_logs()
407 av_log_set_callback(ffmpeg_log_callback);
411 /** Call the required functions to set up DCP-o-matic's static arrays, etc.
412 * Must be called from the UI thread, if there is one.
417 #ifdef DCPOMATIC_WINDOWS
418 boost::filesystem::path p = g_get_user_config_dir ();
419 p /= "backtrace.txt";
420 set_backtrace_file (p);
421 SetUnhandledExceptionFilter(exception_handler);
424 #ifdef DCPOMATIC_HAVE_AVREGISTER
425 LIBDCP_DISABLE_WARNINGS
427 avfilter_register_all ();
428 LIBDCP_ENABLE_WARNINGS
432 /* Add our library directory to the libltdl search path so that
433 xmlsec can find xmlsec1-openssl.
435 auto lib = directory_containing_executable().parent_path();
437 setenv ("LTDL_LIBRARY_PATH", lib.c_str (), 1);
440 set_terminate (terminate);
442 #ifdef DCPOMATIC_WINDOWS
443 putenv ("PANGOCAIRO_BACKEND=fontconfig");
444 if (boost::filesystem::exists(resources_path() / "fonts.conf")) {
445 /* The actual application after installation */
446 putenv(String::compose("FONTCONFIG_PATH=%1", resources_path().string()).c_str());
448 /* The place where fonts.conf is during tests */
449 putenv("FONTCONFIG_PATH=build\\fonts");
454 setenv ("PANGOCAIRO_BACKEND", "fontconfig", 1);
455 setenv ("FONTCONFIG_PATH", resources_path().string().c_str(), 1);
459 dcp::init (libdcp_resources_path());
461 #if defined(DCPOMATIC_WINDOWS) || defined(DCPOMATIC_OSX)
462 /* Render something to fontconfig to create its cache */
463 vector<StringText> subs;
464 dcp::SubtitleString ss(
465 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,
466 "Hello dolly", dcp::Effect::NONE, dcp::Colour(), dcp::Time(), dcp::Time(), 0
468 subs.push_back(StringText(ss, 0, make_shared<dcpomatic::Font>("foo"), dcp::SubtitleStandard::SMPTE_2014));
469 render_text (subs, dcp::Size(640, 480), DCPTime(), 24);
472 Ratio::setup_ratios ();
473 PresetColourConversion::setup_colour_conversion_presets ();
474 DCPContentType::setup_dcp_content_types ();
475 Filter::setup_filters ();
476 CinemaSoundProcessor::setup_cinema_sound_processors ();
477 AudioProcessor::setup_audio_processors ();
479 curl_global_init (CURL_GLOBAL_ALL);
481 ui_thread = boost::this_thread::get_id ();
483 capture_asdcp_logs ();
484 capture_ffmpeg_logs();
487 #ifdef DCPOMATIC_WINDOWS
488 boost::filesystem::path
492 GetModuleFileName (0, buffer, 512 * sizeof(wchar_t));
493 boost::filesystem::path p (buffer);
494 p = p.parent_path ();
495 p = p.parent_path ();
502 boost::filesystem::path
505 return "DCP-o-matic 2.app/Contents/Resources";
510 dcpomatic_setup_gettext_i18n (string lang)
512 #ifdef DCPOMATIC_LINUX
516 if (!lang.empty ()) {
517 /* Override our environment language. Note that the caller must not
518 free the string passed into putenv().
520 string s = String::compose ("LANGUAGE=%1", lang);
521 putenv (strdup (s.c_str ()));
522 s = String::compose ("LANG=%1", lang);
523 putenv (strdup (s.c_str ()));
524 s = String::compose ("LC_ALL=%1", lang);
525 putenv (strdup (s.c_str ()));
528 setlocale (LC_ALL, "");
529 textdomain ("libdcpomatic2");
531 #if defined(DCPOMATIC_WINDOWS) || defined(DCPOMATIC_OSX)
532 bindtextdomain ("libdcpomatic2", mo_path().string().c_str());
533 bind_textdomain_codeset ("libdcpomatic2", "UTF8");
536 #ifdef DCPOMATIC_LINUX
537 bindtextdomain ("libdcpomatic2", LINUX_LOCALE_PREFIX);
541 /** Compute a digest of the first and last `size' bytes of a set of files. */
543 digest_head_tail (vector<boost::filesystem::path> files, boost::uintmax_t size)
545 boost::scoped_array<char> buffer (new char[size]);
549 boost::uintmax_t to_do = size;
550 char* p = buffer.get ();
552 while (i < int64_t (files.size()) && to_do > 0) {
553 dcp::File f(files[i], "rb");
555 throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
558 boost::uintmax_t this_time = min (to_do, boost::filesystem::file_size (files[i]));
559 f.checked_read(p, this_time);
565 digester.add (buffer.get(), size - to_do);
570 i = files.size() - 1;
571 while (i >= 0 && to_do > 0) {
572 dcp::File f(files[i], "rb");
574 throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
577 boost::uintmax_t this_time = min (to_do, boost::filesystem::file_size (files[i]));
578 f.seek(-this_time, SEEK_END);
579 f.checked_read(p, this_time);
585 digester.add (buffer.get(), size - to_do);
587 return digester.get ();
592 simple_digest (vector<boost::filesystem::path> paths)
594 return digest_head_tail(paths, 1000000) + raw_convert<string>(boost::filesystem::file_size(paths.front()));
598 /** Trip an assert if the caller is not in the UI thread */
602 DCPOMATIC_ASSERT (boost::this_thread::get_id() == ui_thread);
606 audio_channel_name (int c)
608 DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
610 /// TRANSLATORS: these are the names of audio channels; Lfe (sub) is the low-frequency
611 /// enhancement channel (sub-woofer).
612 string const channels[] = {
619 _("Hearing impaired"),
620 _("Visually impaired"),
623 _("Left rear surround"),
624 _("Right rear surround"),
626 _("D-BOX secondary"),
635 short_audio_channel_name (int c)
637 DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
639 /// TRANSLATORS: these are short names of audio channels; Lfe is the low-frequency
640 /// enhancement channel (sub-woofer). HI is the hearing-impaired audio track and
641 /// VI is the visually-impaired audio track (audio describe). DBP is the D-BOX
642 /// primary channel and DBS is the D-BOX secondary channel.
643 string const channels[] = {
667 valid_image_file (boost::filesystem::path f)
669 if (boost::starts_with (f.leaf().string(), "._")) {
673 auto ext = f.extension().string();
674 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
676 ext == ".tif" || ext == ".tiff" || ext == ".jpg" || ext == ".jpeg" ||
677 ext == ".png" || ext == ".bmp" || ext == ".tga" || ext == ".dpx" ||
678 ext == ".j2c" || ext == ".j2k" || ext == ".jp2" || ext == ".exr" ||
679 ext == ".jpf" || ext == ".psd"
684 valid_sound_file (boost::filesystem::path f)
686 if (boost::starts_with (f.leaf().string(), "._")) {
690 auto ext = f.extension().string();
691 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
692 return (ext == ".wav" || ext == ".mp3" || ext == ".aif" || ext == ".aiff");
696 valid_j2k_file (boost::filesystem::path f)
698 auto ext = f.extension().string();
699 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
700 return (ext == ".j2k" || ext == ".j2c" || ext == ".jp2");
704 tidy_for_filename (string f)
706 boost::replace_if (f, boost::is_any_of ("\\/:"), '_');
711 fit_ratio_within (float ratio, dcp::Size full_frame)
713 if (ratio < full_frame.ratio ()) {
714 return dcp::Size (lrintf (full_frame.height * ratio), full_frame.height);
717 return dcp::Size (full_frame.width, lrintf (full_frame.width / ratio));
722 asset_filename (shared_ptr<dcp::Asset> asset, string type, int reel_index, int reel_count, optional<string> summary, string extension)
724 dcp::NameFormat::Map values;
726 values['r'] = raw_convert<string>(reel_index + 1);
727 values['n'] = raw_convert<string>(reel_count);
729 values['c'] = careful_string_filter(summary.get());
731 return Config::instance()->dcp_asset_filename_format().get(values, "_" + asset->id() + extension);
736 video_asset_filename (shared_ptr<dcp::PictureAsset> asset, int reel_index, int reel_count, optional<string> summary)
738 return asset_filename(asset, "j2c", reel_index, reel_count, summary, ".mxf");
743 audio_asset_filename (shared_ptr<dcp::SoundAsset> asset, int reel_index, int reel_count, optional<string> summary)
745 return asset_filename(asset, "pcm", reel_index, reel_count, summary, ".mxf");
750 subtitle_asset_filename (shared_ptr<dcp::SubtitleAsset> asset, int reel_index, int reel_count, optional<string> summary, string extension)
752 return asset_filename(asset, "sub", reel_index, reel_count, summary, extension);
757 atmos_asset_filename (shared_ptr<dcp::AtmosAsset> asset, int reel_index, int reel_count, optional<string> summary)
759 return asset_filename(asset, "atmos", reel_index, reel_count, summary, ".mxf");
764 careful_string_filter (string s)
766 /* Filter out `bad' characters which `may' cause problems with some systems (either for DCP name or filename).
767 There's no apparent list of what really is allowed, so this is a guess.
768 Safety first and all that.
771 /* First transliterate using libicu to try to remove accents in a "nice" way */
772 auto transliterated = icu::UnicodeString::fromUTF8(icu::StringPiece(s));
773 auto status = U_ZERO_ERROR;
774 auto transliterator = icu::Transliterator::createInstance("NFD; [:M:] Remove; NFC", UTRANS_FORWARD, status);
775 transliterator->transliterate(transliterated);
777 /* Some things are missed by ICU's transliterator */
778 std::map<wchar_t, wchar_t> replacements = {
783 icu::UnicodeString transliterated_more;
784 for (int i = 0; i < transliterated.length(); ++i) {
785 auto replacement = replacements.find(transliterated[i]);
786 if (replacement != replacements.end()) {
787 transliterated_more += replacement->second;
789 transliterated_more += transliterated[i];
793 /* Then remove anything that's not in a very limited character set */
795 wstring const allowed = L"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_%.+";
796 for (int i = 0; i < transliterated_more.length(); ++i) {
797 wchar_t c = transliterated_more[i];
798 if (allowed.find(c) != string::npos) {
803 return boost::locale::conv::utf_to_utf<char>(out);
806 /** @param mapped List of mapped audio channels from a Film.
807 * @param channels Total number of channels in the Film.
808 * @return First: number of non-LFE soundtrack channels (L/R/C/Ls/Rs/Lc/Rc/Bsl/Bsr), second: number of LFE channels.
811 audio_channel_types (list<int> mapped, int channels)
816 for (auto i: mapped) {
818 /* This channel is mapped but is not included in the DCP */
822 switch (static_cast<dcp::Channel>(i)) {
823 case dcp::Channel::LFE:
826 case dcp::Channel::LEFT:
827 case dcp::Channel::RIGHT:
828 case dcp::Channel::CENTRE:
829 case dcp::Channel::LS:
830 case dcp::Channel::RS:
831 case dcp::Channel::BSL:
832 case dcp::Channel::BSR:
835 case dcp::Channel::HI:
836 case dcp::Channel::VI:
837 case dcp::Channel::MOTION_DATA:
838 case dcp::Channel::SYNC_SIGNAL:
839 case dcp::Channel::SIGN_LANGUAGE:
840 case dcp::Channel::CHANNEL_COUNT:
845 return make_pair (non_lfe, lfe);
848 shared_ptr<AudioBuffers>
849 remap (shared_ptr<const AudioBuffers> input, int output_channels, AudioMapping map)
851 auto mapped = make_shared<AudioBuffers>(output_channels, input->frames());
852 mapped->make_silent ();
854 int to_do = min (map.input_channels(), input->channels());
856 for (int i = 0; i < to_do; ++i) {
857 for (int j = 0; j < mapped->channels(); ++j) {
858 if (map.get(i, j) > 0) {
859 mapped->accumulate_channel(
873 increment_eyes (Eyes e)
875 if (e == Eyes::LEFT) {
884 utf8_strlen (string s)
886 size_t const len = s.length ();
888 for (size_t i = 0; i < len; ++i) {
889 unsigned char c = s[i];
890 if ((c & 0xe0) == 0xc0) {
892 } else if ((c & 0xf0) == 0xe0) {
894 } else if ((c & 0xf8) == 0xf0) {
903 /** @param size Size of picture that the subtitle will be overlaid onto */
905 emit_subtitle_image (ContentTimePeriod period, dcp::SubtitleImage sub, dcp::Size size, shared_ptr<TextDecoder> decoder)
907 /* XXX: this is rather inefficient; decoding the image just to get its size */
908 FFmpegImageProxy proxy (sub.png_image());
909 auto image = proxy.image(Image::Alignment::PADDED).image;
910 /* set up rect with height and width */
911 dcpomatic::Rect<double> rect(0, 0, image->size().width / double(size.width), image->size().height / double(size.height));
913 /* add in position */
915 switch (sub.h_align()) {
916 case dcp::HAlign::LEFT:
917 rect.x += sub.h_position();
919 case dcp::HAlign::CENTER:
920 rect.x += 0.5 + sub.h_position() - rect.width / 2;
922 case dcp::HAlign::RIGHT:
923 rect.x += 1 - sub.h_position() - rect.width;
927 switch (sub.v_align()) {
928 case dcp::VAlign::TOP:
929 rect.y += sub.v_position();
931 case dcp::VAlign::CENTER:
932 rect.y += 0.5 + sub.v_position() - rect.height / 2;
934 case dcp::VAlign::BOTTOM:
935 rect.y += 1 - sub.v_position() - rect.height;
939 decoder->emit_bitmap (period, image, rect);
943 /** XXX: could use mmap? */
945 copy_in_bits (boost::filesystem::path from, boost::filesystem::path to, std::function<void (float)> progress)
947 dcp::File f(from, "rb");
949 throw OpenFileError (from, errno, OpenFileError::READ);
951 dcp::File t(to, "wb");
953 throw OpenFileError (to, errno, OpenFileError::WRITE);
956 /* on the order of a second's worth of copying */
957 boost::uintmax_t const chunk = 20 * 1024 * 1024;
959 std::vector<uint8_t> buffer(chunk);
961 boost::uintmax_t const total = boost::filesystem::file_size (from);
962 boost::uintmax_t remaining = total;
965 boost::uintmax_t this_time = min (chunk, remaining);
966 size_t N = f.read(buffer.data(), 1, chunk);
968 throw ReadFileError (from, errno);
971 N = t.write(buffer.data(), 1, this_time);
973 throw WriteFileError (to, errno);
976 progress (1 - float(remaining) / total);
977 remaining -= this_time;
983 scale_for_display (dcp::Size s, dcp::Size display_container, dcp::Size film_container, PixelQuanta quanta)
985 /* Now scale it down if the display container is smaller than the film container */
986 if (display_container != film_container) {
987 float const scale = min (
988 float (display_container.width) / film_container.width,
989 float (display_container.height) / film_container.height
992 s.width = lrintf (s.width * scale);
993 s.height = lrintf (s.height * scale);
994 s = quanta.round (s);
1002 decrypt_kdm_with_helpful_error (dcp::EncryptedKDM kdm)
1005 return dcp::DecryptedKDM (kdm, Config::instance()->decryption_chain()->key().get());
1006 } catch (dcp::KDMDecryptionError& e) {
1007 /* Try to flesh out the error a bit */
1008 auto const kdm_subject_name = kdm.recipient_x509_subject_name();
1009 bool on_chain = false;
1010 auto dc = Config::instance()->decryption_chain();
1011 for (auto i: dc->root_to_leaf()) {
1012 if (i.subject() == kdm_subject_name) {
1017 throw KDMError (_("This KDM was not made for DCP-o-matic's decryption certificate."), e.what());
1018 } else if (kdm_subject_name != dc->leaf().subject()) {
1019 throw KDMError (_("This KDM was made for DCP-o-matic but not for its leaf certificate."), e.what());
1027 boost::filesystem::path
1028 default_font_file ()
1030 boost::filesystem::path liberation_normal;
1032 liberation_normal = resources_path() / "LiberationSans-Regular.ttf";
1033 if (!boost::filesystem::exists (liberation_normal)) {
1034 /* Hack for unit tests */
1035 liberation_normal = resources_path() / "fonts" / "LiberationSans-Regular.ttf";
1037 } catch (boost::filesystem::filesystem_error& e) {
1041 if (!boost::filesystem::exists(liberation_normal)) {
1042 liberation_normal = "/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf";
1044 if (!boost::filesystem::exists(liberation_normal)) {
1045 liberation_normal = "/usr/share/fonts/liberation-sans/LiberationSans-Regular.ttf";
1048 return liberation_normal;
1052 /* Set to 1 to print the IDs of some of our threads to stdout on creation */
1053 #define DCPOMATIC_DEBUG_THREADS 0
1055 #if DCPOMATIC_DEBUG_THREADS
1057 start_of_thread (string name)
1059 std::cout << "THREAD:" << name << ":" << std::hex << pthread_self() << "\n";
1063 start_of_thread (string)
1071 error_details(boost::system::error_code ec)
1073 return String::compose("%1:%2:%3", ec.category().name(), ec.value(), ec.message());
1078 contains_assetmap(boost::filesystem::path dir)
1080 return boost::filesystem::is_regular_file(dir / "ASSETMAP") || boost::filesystem::is_regular_file(dir / "ASSETMAP.xml");
1085 word_wrap(string input, int columns)
1088 UErrorCode status = U_ZERO_ERROR;
1089 auto iter = icu::BreakIterator::createLineInstance(locale, status);
1090 ScopeGuard sg = [iter]() { delete iter; };
1091 if (U_FAILURE(status)) {
1095 auto input_icu = icu::UnicodeString::fromUTF8(icu::StringPiece(input));
1096 iter->setText(input_icu);
1100 while (position < input_icu.length()) {
1101 int end_of_line = iter->preceding(position + columns + 1);
1102 icu::UnicodeString line;
1103 if (end_of_line <= position) {
1104 /* There's no good line-break position; just break in the middle of a word */
1105 line = input_icu.tempSubString(position, columns);
1106 position += columns;
1108 line = input_icu.tempSubString(position, end_of_line - position);
1109 position = end_of_line;
1111 line.toUTF8String(output);