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 "scope_guard.h"
50 #include "string_text.h"
51 #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/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
103 using std::bad_alloc;
108 using std::make_pair;
109 using std::make_shared;
114 using std::set_terminate;
115 using std::shared_ptr;
120 using boost::optional;
121 using boost::lexical_cast;
122 using boost::bad_lexical_cast;
123 using boost::scoped_array;
125 using dcp::raw_convert;
126 using dcp::locale_convert;
127 using namespace dcpomatic;
130 /** Path to our executable, required by the stacktrace stuff and filled
131 * in during App::onInit().
134 bool is_batch_converter = false;
135 static boost::thread::id ui_thread;
136 static boost::filesystem::path backtrace_file;
138 /** Convert some number of seconds to a string representation
139 * in hours, minutes and seconds.
142 * @return String of the form H:M:S (where H is hours, M
143 * is minutes and S is seconds).
146 seconds_to_hms (int s)
154 snprintf (buffer, sizeof(buffer), "%d:%02d:%02d", h, m, s);
159 time_to_hmsf (DCPTime time, Frame rate)
161 Frame f = time.frames_round (rate);
170 snprintf (buffer, sizeof(buffer), "%d:%02d:%02d.%d", h, m, s, static_cast<int>(f));
174 /** @param s Number of seconds.
175 * @return String containing an approximate description of s (e.g. "about 2 hours")
178 seconds_to_approximate_hms (int s)
188 bool minutes = h < 6 && m > 0;
189 bool seconds = h == 0 && m < 10 && s > 0;
191 if (m > 30 && !minutes) {
192 /* round up the hours */
195 if (s > 30 && !seconds) {
196 /* round up the minutes */
206 /// TRANSLATORS: h here is an abbreviation for hours
207 ap += locale_convert<string>(h) + _("h");
209 if (minutes || seconds) {
215 /// TRANSLATORS: m here is an abbreviation for minutes
216 ap += locale_convert<string>(m) + _("m");
225 /// TRANSLATORS: s here is an abbreviation for seconds
226 ap += locale_convert<string>(s) + _("s");
233 seconds (struct timeval t)
235 return t.tv_sec + (double (t.tv_usec) / 1e6);
238 #ifdef DCPOMATIC_WINDOWS
240 /** Resolve symbol name and source location given the path to the executable */
242 addr2line (void const * const addr)
244 char addr2line_cmd[512] = { 0 };
245 sprintf (addr2line_cmd, "addr2line -f -p -e %.256s %p > %s", program_name.c_str(), addr, backtrace_file.string().c_str());
246 return system(addr2line_cmd);
249 LIBDCP_DISABLE_WARNINGS
250 /** This is called when C signals occur on Windows (e.g. SIGSEGV)
251 * (NOT C++ exceptions!). We write a backtrace to backtrace_file by dark means.
252 * Adapted from code here: http://spin.atomicobject.com/2013/01/13/exceptions-stack-traces-c/
255 exception_handler(struct _EXCEPTION_POINTERS * info)
257 dcp::File f(backtrace_file, "w");
259 fprintf(f.get(), "C-style exception %d\n", info->ExceptionRecord->ExceptionCode);
263 if (info->ExceptionRecord->ExceptionCode != EXCEPTION_STACK_OVERFLOW) {
264 CONTEXT* context = info->ContextRecord;
265 SymInitialize (GetCurrentProcess (), 0, true);
267 STACKFRAME frame = { 0 };
269 /* setup initial stack frame */
271 frame.AddrPC.Offset = context->Rip;
272 frame.AddrStack.Offset = context->Rsp;
273 frame.AddrFrame.Offset = context->Rbp;
275 frame.AddrPC.Offset = context->Eip;
276 frame.AddrStack.Offset = context->Esp;
277 frame.AddrFrame.Offset = context->Ebp;
279 frame.AddrPC.Mode = AddrModeFlat;
280 frame.AddrStack.Mode = AddrModeFlat;
281 frame.AddrFrame.Mode = AddrModeFlat;
285 IMAGE_FILE_MACHINE_I386,
286 GetCurrentProcess (),
291 SymFunctionTableAccess,
296 addr2line((void *) frame.AddrPC.Offset);
300 addr2line ((void *) info->ContextRecord->Rip);
302 addr2line ((void *) info->ContextRecord->Eip);
306 return EXCEPTION_CONTINUE_SEARCH;
308 LIBDCP_ENABLE_WARNINGS
312 set_backtrace_file (boost::filesystem::path p)
317 /** This is called when there is an unhandled exception. Any
318 * backtrace in this function is useless on Windows as the stack has
319 * already been unwound from the throw; we have the gdb wrap hack to
326 static bool tried_throw = false;
327 // try once to re-throw currently active exception
333 catch (const std::exception &e) {
334 std::cerr << __FUNCTION__ << " caught unhandled exception. what(): "
335 << e.what() << std::endl;
338 std::cerr << __FUNCTION__ << " caught unknown/unhandled exception."
346 dcpomatic_setup_path_encoding ()
348 #ifdef DCPOMATIC_WINDOWS
349 /* Dark voodoo which, I think, gets boost::filesystem::path to
350 correctly convert UTF-8 strings to paths, and also paths
351 back to UTF-8 strings (on path::string()).
353 After this, constructing boost::filesystem::paths from strings
354 converts from UTF-8 to UTF-16 inside the path. Then
355 path::string().c_str() gives UTF-8 and
356 path::c_str() gives UTF-16.
358 This is all Windows-only. AFAICT Linux/OS X use UTF-8 everywhere,
359 so things are much simpler.
361 std::locale::global (boost::locale::generator().generate (""));
362 boost::filesystem::path::imbue (std::locale ());
367 class LogSink : public Kumu::ILogSink
371 LogSink (LogSink const&) = delete;
372 LogSink& operator= (LogSink const&) = delete;
374 void WriteEntry(const Kumu::LogEntry& entry) override {
375 Kumu::AutoMutex L(m_lock);
376 WriteEntryToListeners(entry);
377 if (entry.TestFilter(m_filter)) {
379 entry.CreateStringWithOptions(buffer, m_options);
380 LOG_GENERAL("asdcplib: %1", buffer);
387 capture_asdcp_logs ()
389 static LogSink log_sink;
390 Kumu::SetDefaultLogSink(&log_sink);
396 ffmpeg_log_callback(void* ptr, int level, const char* fmt, va_list vl)
398 if (level > AV_LOG_WARNING) {
403 static int prefix = 0;
404 av_log_format_line(ptr, level, fmt, vl, line, sizeof (line), &prefix);
406 boost::algorithm::trim(str);
407 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 if (dcp::filesystem::exists(resources_path() / "fonts.conf")) {
452 /* The actual application after installation */
453 putenv(String::compose("FONTCONFIG_PATH=%1", resources_path().string()).c_str());
455 /* The place where fonts.conf is during tests */
456 putenv("FONTCONFIG_PATH=build\\fonts");
461 setenv ("PANGOCAIRO_BACKEND", "fontconfig", 1);
462 setenv ("FONTCONFIG_PATH", resources_path().string().c_str(), 1);
466 dcp::init (libdcp_resources_path());
468 #if defined(DCPOMATIC_WINDOWS) || defined(DCPOMATIC_OSX)
469 /* Render something to fontconfig to create its cache */
470 vector<StringText> subs;
471 dcp::SubtitleString ss(
472 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,
473 "Hello dolly", dcp::Effect::NONE, dcp::Colour(), dcp::Time(), dcp::Time(), 0, std::vector<dcp::Ruby>()
475 subs.push_back(StringText(ss, 0, make_shared<dcpomatic::Font>("foo"), dcp::SubtitleStandard::SMPTE_2014));
476 render_text (subs, dcp::Size(640, 480), DCPTime(), 24);
479 Ratio::setup_ratios ();
480 PresetColourConversion::setup_colour_conversion_presets ();
481 DCPContentType::setup_dcp_content_types ();
482 Filter::setup_filters ();
483 CinemaSoundProcessor::setup_cinema_sound_processors ();
484 AudioProcessor::setup_audio_processors ();
486 curl_global_init (CURL_GLOBAL_ALL);
488 ui_thread = boost::this_thread::get_id ();
490 capture_asdcp_logs ();
491 capture_ffmpeg_logs();
494 #ifdef DCPOMATIC_WINDOWS
495 boost::filesystem::path
499 GetModuleFileName (0, buffer, 512 * sizeof(wchar_t));
500 boost::filesystem::path p (buffer);
501 p = p.parent_path ();
502 p = p.parent_path ();
509 boost::filesystem::path
512 return "DCP-o-matic 2.app/Contents/Resources";
517 dcpomatic_setup_gettext_i18n (string lang)
519 #ifdef DCPOMATIC_LINUX
523 if (!lang.empty ()) {
524 /* Override our environment language. Note that the caller must not
525 free the string passed into putenv().
527 string s = String::compose ("LANGUAGE=%1", lang);
528 putenv (strdup (s.c_str ()));
529 s = String::compose ("LANG=%1", lang);
530 putenv (strdup (s.c_str ()));
531 s = String::compose ("LC_ALL=%1", lang);
532 putenv (strdup (s.c_str ()));
535 setlocale (LC_ALL, "");
536 textdomain ("libdcpomatic2");
538 #if defined(DCPOMATIC_WINDOWS) || defined(DCPOMATIC_OSX)
539 bindtextdomain ("libdcpomatic2", mo_path().string().c_str());
540 bind_textdomain_codeset ("libdcpomatic2", "UTF8");
543 #ifdef DCPOMATIC_LINUX
544 bindtextdomain ("libdcpomatic2", LINUX_LOCALE_PREFIX);
548 /** Compute a digest of the first and last `size' bytes of a set of files. */
550 digest_head_tail (vector<boost::filesystem::path> files, boost::uintmax_t size)
552 boost::scoped_array<char> buffer (new char[size]);
556 boost::uintmax_t to_do = size;
557 char* p = buffer.get ();
559 while (i < int64_t (files.size()) && to_do > 0) {
560 dcp::File f(files[i], "rb");
562 throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
565 auto this_time = min(to_do, dcp::filesystem::file_size(files[i]));
566 f.checked_read(p, this_time);
572 digester.add (buffer.get(), size - to_do);
577 i = files.size() - 1;
578 while (i >= 0 && to_do > 0) {
579 dcp::File f(files[i], "rb");
581 throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
584 auto this_time = min(to_do, dcp::filesystem::file_size(files[i]));
585 f.seek(-this_time, SEEK_END);
586 f.checked_read(p, this_time);
592 digester.add (buffer.get(), size - to_do);
594 return digester.get ();
599 simple_digest (vector<boost::filesystem::path> paths)
601 return digest_head_tail(paths, 1000000) + raw_convert<string>(dcp::filesystem::file_size(paths.front()));
605 /** Trip an assert if the caller is not in the UI thread */
609 DCPOMATIC_ASSERT (boost::this_thread::get_id() == ui_thread);
613 audio_channel_name (int c)
615 DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
617 /// TRANSLATORS: these are the names of audio channels; Lfe (sub) is the low-frequency
618 /// enhancement channel (sub-woofer).
619 string const channels[] = {
626 _("Hearing impaired"),
627 _("Visually impaired"),
630 _("Left rear surround"),
631 _("Right rear surround"),
633 _("D-BOX secondary"),
642 short_audio_channel_name (int c)
644 DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
646 /// TRANSLATORS: these are short names of audio channels; Lfe is the low-frequency
647 /// enhancement channel (sub-woofer). HI is the hearing-impaired audio track and
648 /// VI is the visually-impaired audio track (audio describe). DBP is the D-BOX
649 /// primary channel and DBS is the D-BOX secondary channel.
650 string const channels[] = {
674 valid_image_file (boost::filesystem::path f)
676 if (boost::starts_with(f.filename().string(), "._")) {
680 auto ext = f.extension().string();
681 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
683 ext == ".tif" || ext == ".tiff" || ext == ".jpg" || ext == ".jpeg" ||
684 ext == ".png" || ext == ".bmp" || ext == ".tga" || ext == ".dpx" ||
685 ext == ".j2c" || ext == ".j2k" || ext == ".jp2" || ext == ".exr" ||
686 ext == ".jpf" || ext == ".psd"
691 valid_sound_file (boost::filesystem::path f)
693 if (boost::starts_with(f.filename().string(), "._")) {
697 auto ext = f.extension().string();
698 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
699 return (ext == ".wav" || ext == ".mp3" || ext == ".aif" || ext == ".aiff");
703 valid_j2k_file (boost::filesystem::path f)
705 auto ext = f.extension().string();
706 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
707 return (ext == ".j2k" || ext == ".j2c" || ext == ".jp2");
711 tidy_for_filename (string f)
713 boost::replace_if (f, boost::is_any_of ("\\/:"), '_');
718 fit_ratio_within (float ratio, dcp::Size full_frame)
720 if (ratio < full_frame.ratio ()) {
721 return dcp::Size (lrintf (full_frame.height * ratio), full_frame.height);
724 return dcp::Size (full_frame.width, lrintf (full_frame.width / ratio));
729 asset_filename (shared_ptr<dcp::Asset> asset, string type, int reel_index, int reel_count, optional<string> summary, string extension)
731 dcp::NameFormat::Map values;
733 values['r'] = raw_convert<string>(reel_index + 1);
734 values['n'] = raw_convert<string>(reel_count);
736 values['c'] = summary.get();
738 return careful_string_filter(Config::instance()->dcp_asset_filename_format().get(values, "_" + asset->id() + extension));
743 video_asset_filename (shared_ptr<dcp::PictureAsset> asset, int reel_index, int reel_count, optional<string> summary)
745 return asset_filename(asset, "j2c", reel_index, reel_count, summary, ".mxf");
750 audio_asset_filename (shared_ptr<dcp::SoundAsset> asset, int reel_index, int reel_count, optional<string> summary)
752 return asset_filename(asset, "pcm", reel_index, reel_count, summary, ".mxf");
757 subtitle_asset_filename (shared_ptr<dcp::SubtitleAsset> asset, int reel_index, int reel_count, optional<string> summary, string extension)
759 return asset_filename(asset, "sub", reel_index, reel_count, summary, extension);
764 atmos_asset_filename (shared_ptr<dcp::AtmosAsset> asset, int reel_index, int reel_count, optional<string> summary)
766 return asset_filename(asset, "atmos", reel_index, reel_count, summary, ".mxf");
771 careful_string_filter (string s)
773 /* Filter out `bad' characters which `may' cause problems with some systems (either for DCP name or filename).
774 There's no apparent list of what really is allowed, so this is a guess.
775 Safety first and all that.
778 /* First transliterate using libicu to try to remove accents in a "nice" way */
779 auto transliterated = icu::UnicodeString::fromUTF8(icu::StringPiece(s));
780 auto status = U_ZERO_ERROR;
781 auto transliterator = icu::Transliterator::createInstance("NFD; [:M:] Remove; NFC", UTRANS_FORWARD, status);
782 transliterator->transliterate(transliterated);
784 /* Some things are missed by ICU's transliterator */
785 std::map<wchar_t, wchar_t> replacements = {
790 icu::UnicodeString transliterated_more;
791 for (int i = 0; i < transliterated.length(); ++i) {
792 auto replacement = replacements.find(transliterated[i]);
793 if (replacement != replacements.end()) {
794 transliterated_more += replacement->second;
796 transliterated_more += transliterated[i];
800 /* Then remove anything that's not in a very limited character set */
802 wstring const allowed = L"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_.+";
803 for (int i = 0; i < transliterated_more.length(); ++i) {
804 wchar_t c = transliterated_more[i];
805 if (allowed.find(c) != string::npos) {
810 return boost::locale::conv::utf_to_utf<char>(out);
813 /** @param mapped List of mapped audio channels from a Film.
814 * @param channels Total number of channels in the Film.
815 * @return First: number of non-LFE soundtrack channels (L/R/C/Ls/Rs/Lc/Rc/Bsl/Bsr), second: number of LFE channels.
818 audio_channel_types (list<int> mapped, int channels)
823 for (auto i: mapped) {
825 /* This channel is mapped but is not included in the DCP */
829 switch (static_cast<dcp::Channel>(i)) {
830 case dcp::Channel::LFE:
833 case dcp::Channel::LEFT:
834 case dcp::Channel::RIGHT:
835 case dcp::Channel::CENTRE:
836 case dcp::Channel::LS:
837 case dcp::Channel::RS:
838 case dcp::Channel::BSL:
839 case dcp::Channel::BSR:
842 case dcp::Channel::HI:
843 case dcp::Channel::VI:
844 case dcp::Channel::MOTION_DATA:
845 case dcp::Channel::SYNC_SIGNAL:
846 case dcp::Channel::SIGN_LANGUAGE:
847 case dcp::Channel::CHANNEL_COUNT:
852 return make_pair (non_lfe, lfe);
855 shared_ptr<AudioBuffers>
856 remap (shared_ptr<const AudioBuffers> input, int output_channels, AudioMapping map)
858 auto mapped = make_shared<AudioBuffers>(output_channels, input->frames());
859 mapped->make_silent ();
861 int to_do = min (map.input_channels(), input->channels());
863 for (int i = 0; i < to_do; ++i) {
864 for (int j = 0; j < mapped->channels(); ++j) {
865 if (map.get(i, j) > 0) {
866 mapped->accumulate_channel(
880 increment_eyes (Eyes e)
882 if (e == Eyes::LEFT) {
891 utf8_strlen (string s)
893 size_t const len = s.length ();
895 for (size_t i = 0; i < len; ++i) {
896 unsigned char c = s[i];
897 if ((c & 0xe0) == 0xc0) {
899 } else if ((c & 0xf0) == 0xe0) {
901 } else if ((c & 0xf8) == 0xf0) {
910 /** @param size Size of picture that the subtitle will be overlaid onto */
912 emit_subtitle_image (ContentTimePeriod period, dcp::SubtitleImage sub, dcp::Size size, shared_ptr<TextDecoder> decoder)
914 /* XXX: this is rather inefficient; decoding the image just to get its size */
915 FFmpegImageProxy proxy (sub.png_image());
916 auto image = proxy.image(Image::Alignment::PADDED).image;
917 /* set up rect with height and width */
918 dcpomatic::Rect<double> rect(0, 0, image->size().width / double(size.width), image->size().height / double(size.height));
920 /* add in position */
922 switch (sub.h_align()) {
923 case dcp::HAlign::LEFT:
924 rect.x += sub.h_position();
926 case dcp::HAlign::CENTER:
927 rect.x += 0.5 + sub.h_position() - rect.width / 2;
929 case dcp::HAlign::RIGHT:
930 rect.x += 1 - sub.h_position() - rect.width;
934 switch (sub.v_align()) {
935 case dcp::VAlign::TOP:
936 rect.y += sub.v_position();
938 case dcp::VAlign::CENTER:
939 rect.y += 0.5 + sub.v_position() - rect.height / 2;
941 case dcp::VAlign::BOTTOM:
942 rect.y += 1 - sub.v_position() - rect.height;
946 decoder->emit_bitmap (period, image, rect);
950 /** XXX: could use mmap? */
952 copy_in_bits (boost::filesystem::path from, boost::filesystem::path to, std::function<void (float)> progress)
954 dcp::File f(from, "rb");
956 throw OpenFileError (from, errno, OpenFileError::READ);
958 dcp::File t(to, "wb");
960 throw OpenFileError (to, errno, OpenFileError::WRITE);
963 /* on the order of a second's worth of copying */
964 boost::uintmax_t const chunk = 20 * 1024 * 1024;
966 std::vector<uint8_t> buffer(chunk);
968 auto const total = dcp::filesystem::file_size(from);
969 boost::uintmax_t remaining = total;
972 boost::uintmax_t this_time = min (chunk, remaining);
973 size_t N = f.read(buffer.data(), 1, chunk);
975 throw ReadFileError (from, errno);
978 N = t.write(buffer.data(), 1, this_time);
980 throw WriteFileError (to, errno);
983 progress (1 - float(remaining) / total);
984 remaining -= this_time;
990 scale_for_display (dcp::Size s, dcp::Size display_container, dcp::Size film_container, PixelQuanta quanta)
992 /* Now scale it down if the display container is smaller than the film container */
993 if (display_container != film_container) {
994 float const scale = min (
995 float (display_container.width) / film_container.width,
996 float (display_container.height) / film_container.height
999 s.width = lrintf (s.width * scale);
1000 s.height = lrintf (s.height * scale);
1001 s = quanta.round (s);
1009 decrypt_kdm_with_helpful_error (dcp::EncryptedKDM kdm)
1012 return dcp::DecryptedKDM (kdm, Config::instance()->decryption_chain()->key().get());
1013 } catch (dcp::KDMDecryptionError& e) {
1014 /* Try to flesh out the error a bit */
1015 auto const kdm_subject_name = kdm.recipient_x509_subject_name();
1016 bool on_chain = false;
1017 auto dc = Config::instance()->decryption_chain();
1018 for (auto i: dc->root_to_leaf()) {
1019 if (i.subject() == kdm_subject_name) {
1024 throw KDMError (_("This KDM was not made for DCP-o-matic's decryption certificate."), e.what());
1025 } else if (kdm_subject_name != dc->leaf().subject()) {
1026 throw KDMError (_("This KDM was made for DCP-o-matic but not for its leaf certificate."), e.what());
1034 boost::filesystem::path
1035 default_font_file ()
1037 boost::filesystem::path liberation_normal;
1039 liberation_normal = resources_path() / "LiberationSans-Regular.ttf";
1040 if (!dcp::filesystem::exists(liberation_normal)) {
1041 /* Hack for unit tests */
1042 liberation_normal = resources_path() / "fonts" / "LiberationSans-Regular.ttf";
1044 } catch (boost::filesystem::filesystem_error& e) {
1048 if (!dcp::filesystem::exists(liberation_normal)) {
1049 liberation_normal = "/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf";
1051 if (!dcp::filesystem::exists(liberation_normal)) {
1052 liberation_normal = "/usr/share/fonts/liberation-sans/LiberationSans-Regular.ttf";
1055 return liberation_normal;
1059 /* Set to 1 to print the IDs of some of our threads to stdout on creation */
1060 #define DCPOMATIC_DEBUG_THREADS 0
1062 #if DCPOMATIC_DEBUG_THREADS
1064 start_of_thread (string name)
1066 std::cout << "THREAD:" << name << ":" << std::hex << pthread_self() << "\n";
1070 start_of_thread (string)
1078 error_details(boost::system::error_code ec)
1080 return String::compose("%1:%2:%3", ec.category().name(), ec.value(), ec.message());
1085 contains_assetmap(boost::filesystem::path dir)
1087 return dcp::filesystem::is_regular_file(dir / "ASSETMAP") || dcp::filesystem::is_regular_file(dir / "ASSETMAP.xml");
1092 word_wrap(string input, int columns)
1095 UErrorCode status = U_ZERO_ERROR;
1096 auto iter = icu::BreakIterator::createLineInstance(locale, status);
1097 ScopeGuard sg = [iter]() { delete iter; };
1098 if (U_FAILURE(status)) {
1102 auto input_icu = icu::UnicodeString::fromUTF8(icu::StringPiece(input));
1103 iter->setText(input_icu);
1107 while (position < input_icu.length()) {
1108 int end_of_line = iter->preceding(position + columns + 1);
1109 icu::UnicodeString line;
1110 if (end_of_line <= position) {
1111 /* There's no good line-break position; just break in the middle of a word */
1112 line = input_icu.tempSubString(position, columns);
1113 position += columns;
1115 line = input_icu.tempSubString(position, end_of_line - position);
1116 position = end_of_line;
1118 line.toUTF8String(output);