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"
36 #include "dcp_content_type.h"
38 #include "exceptions.h"
39 #include "ffmpeg_image_proxy.h"
44 #include "job_manager.h"
47 #include "render_text.h"
48 #include "string_text.h"
49 #include "text_decoder.h"
51 #include "video_content.h"
53 #include <dcp/decrypted_kdm.h>
54 #include <dcp/locale_convert.h>
56 #include <dcp/raw_convert.h>
57 #include <dcp/picture_asset.h>
58 #include <dcp/sound_asset.h>
59 #include <dcp/subtitle_asset.h>
60 #include <dcp/atmos_asset.h>
61 DCPOMATIC_DISABLE_WARNINGS
63 #include <libavfilter/avfilter.h>
64 #include <libavformat/avformat.h>
65 #include <libavcodec/avcodec.h>
67 DCPOMATIC_ENABLE_WARNINGS
68 #include <curl/curl.h>
70 #include <pangomm/init.h>
71 #include <unicode/utypes.h>
72 #include <unicode/unistr.h>
73 #include <unicode/translit.h>
74 #include <boost/algorithm/string.hpp>
75 #include <boost/range/algorithm/replace_if.hpp>
76 #include <boost/thread.hpp>
77 #include <boost/filesystem.hpp>
78 DCPOMATIC_DISABLE_WARNINGS
79 #include <boost/locale.hpp>
80 DCPOMATIC_ENABLE_WARNINGS
81 #ifdef DCPOMATIC_WINDOWS
82 #include <boost/locale.hpp>
91 #ifdef DCPOMATIC_POSIX
104 using std::make_pair;
105 using std::make_shared;
110 using std::set_terminate;
111 using std::shared_ptr;
115 using boost::bad_lexical_cast;
116 using boost::lexical_cast;
117 using boost::optional;
118 using boost::scoped_array;
121 using dcp::locale_convert;
122 using dcp::raw_convert;
123 using namespace dcpomatic;
126 /** Path to our executable, required by the stacktrace stuff and filled
127 * in during App::onInit().
130 bool is_batch_converter = false;
131 static boost::thread::id ui_thread;
132 static boost::filesystem::path backtrace_file;
135 /** Convert some number of seconds to a string representation
136 * in hours, minutes and seconds.
139 * @return String of the form H:M:S (where H is hours, M
140 * is minutes and S is seconds).
143 seconds_to_hms (int s)
151 snprintf (buffer, sizeof(buffer), "%d:%02d:%02d", h, m, s);
157 time_to_hmsf (DCPTime time, Frame rate)
159 Frame f = time.frames_round (rate);
168 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");
233 seconds (struct timeval t)
235 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 return system(addr2line_cmd);
251 DCPOMATIC_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 auto f = fopen_boost (backtrace_file, "w");
260 fprintf (f, "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 DCPOMATIC_ENABLE_WARNINGS
313 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."
349 dcpomatic_setup_path_encoding ()
351 #ifdef DCPOMATIC_WINDOWS
352 /* Dark voodoo which, I think, gets boost::filesystem::path to
353 correctly convert UTF-8 strings to paths, and also paths
354 back to UTF-8 strings (on path::string()).
356 After this, constructing boost::filesystem::paths from strings
357 converts from UTF-8 to UTF-16 inside the path. Then
358 path::string().c_str() gives UTF-8 and
359 path::c_str() gives UTF-16.
361 This is all Windows-only. AFAICT Linux/OS X use UTF-8 everywhere,
362 so things are much simpler.
364 std::locale::global (boost::locale::generator().generate (""));
365 boost::filesystem::path::imbue (std::locale ());
370 /** Call the required functions to set up DCP-o-matic's static arrays, etc.
371 * Must be called from the UI thread, if there is one.
376 #ifdef DCPOMATIC_WINDOWS
377 boost::filesystem::path p = g_get_user_config_dir ();
378 p /= "backtrace.txt";
379 set_backtrace_file (p);
380 SetUnhandledExceptionFilter(exception_handler);
383 #ifdef DCPOMATIC_HAVE_AVREGISTER
384 DCPOMATIC_DISABLE_WARNINGS
386 avfilter_register_all ();
387 DCPOMATIC_ENABLE_WARNINGS
391 /* Add our library directory to the libltdl search path so that
392 xmlsec can find xmlsec1-openssl.
394 auto lib = directory_containing_executable().parent_path();
396 setenv ("LTDL_LIBRARY_PATH", lib.c_str (), 1);
399 set_terminate (terminate);
401 #ifdef DCPOMATIC_WINDOWS
402 putenv ("PANGOCAIRO_BACKEND=fontconfig");
403 putenv (String::compose("FONTCONFIG_PATH=%1", resources_path().string()).c_str());
407 setenv ("PANGOCAIRO_BACKEND", "fontconfig", 1);
408 setenv ("FONTCONFIG_PATH", resources_path().string().c_str(), 1);
412 dcp::init (tags_path());
414 #if defined(DCPOMATIC_WINDOWS) || defined(DCPOMATIC_OSX)
415 /* Render something to fontconfig to create its cache */
416 list<StringText> subs;
417 dcp::SubtitleString ss(
418 optional<string>(), false, false, false, dcp::Colour(), 42, 1, dcp::Time(), dcp::Time(), 0, dcp::HAlign::CENTER, 0, dcp::VAlign::CENTER, dcp::Direction::LTR,
419 "Hello dolly", dcp::Effect::NONE, dcp::Colour(), dcp::Time(), dcp::Time(), 0
421 subs.push_back (StringText(ss, 0));
422 render_text (subs, list<shared_ptr<Font>>(), dcp::Size(640, 480), DCPTime(), 24);
425 Ratio::setup_ratios ();
426 PresetColourConversion::setup_colour_conversion_presets ();
427 DCPContentType::setup_dcp_content_types ();
428 Filter::setup_filters ();
429 CinemaSoundProcessor::setup_cinema_sound_processors ();
430 AudioProcessor::setup_audio_processors ();
432 curl_global_init (CURL_GLOBAL_ALL);
434 ui_thread = boost::this_thread::get_id ();
438 #ifdef DCPOMATIC_WINDOWS
439 boost::filesystem::path
443 GetModuleFileName (0, buffer, 512 * sizeof(wchar_t));
444 boost::filesystem::path p (buffer);
445 p = p.parent_path ();
446 p = p.parent_path ();
454 boost::filesystem::path
457 return "DCP-o-matic 2.app/Contents/Resources";
463 dcpomatic_setup_gettext_i18n (string lang)
465 #ifdef DCPOMATIC_LINUX
469 if (!lang.empty ()) {
470 /* Override our environment language. Note that the caller must not
471 free the string passed into putenv().
473 string s = String::compose ("LANGUAGE=%1", lang);
474 putenv (strdup (s.c_str ()));
475 s = String::compose ("LANG=%1", lang);
476 putenv (strdup (s.c_str ()));
477 s = String::compose ("LC_ALL=%1", lang);
478 putenv (strdup (s.c_str ()));
481 setlocale (LC_ALL, "");
482 textdomain ("libdcpomatic2");
484 #if defined(DCPOMATIC_WINDOWS) || defined(DCPOMATIC_OSX)
485 bindtextdomain ("libdcpomatic2", mo_path().string().c_str());
486 bind_textdomain_codeset ("libdcpomatic2", "UTF8");
489 #ifdef DCPOMATIC_LINUX
490 bindtextdomain ("libdcpomatic2", LINUX_LOCALE_PREFIX);
495 /** Compute a digest of the first and last `size' bytes of a set of files. */
497 digest_head_tail (vector<boost::filesystem::path> files, boost::uintmax_t size)
499 boost::scoped_array<char> buffer (new char[size]);
503 boost::uintmax_t to_do = size;
504 char* p = buffer.get ();
506 while (i < int64_t (files.size()) && to_do > 0) {
507 auto f = fopen_boost (files[i], "rb");
509 throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
512 boost::uintmax_t this_time = min (to_do, boost::filesystem::file_size (files[i]));
513 checked_fread (p, this_time, f, files[i]);
520 digester.add (buffer.get(), size - to_do);
525 i = files.size() - 1;
526 while (i >= 0 && to_do > 0) {
527 auto f = fopen_boost (files[i], "rb");
529 throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
532 boost::uintmax_t this_time = min (to_do, boost::filesystem::file_size (files[i]));
533 dcpomatic_fseek (f, -this_time, SEEK_END);
534 checked_fread (p, this_time, f, files[i]);
541 digester.add (buffer.get(), size - to_do);
543 return digester.get ();
548 simple_digest (vector<boost::filesystem::path> paths)
550 return digest_head_tail(paths, 1000000) + raw_convert<string>(boost::filesystem::file_size(paths.front()));
554 /** Trip an assert if the caller is not in the UI thread */
558 DCPOMATIC_ASSERT (boost::this_thread::get_id() == ui_thread);
563 audio_channel_name (int c)
565 DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
567 /// TRANSLATORS: these are the names of audio channels; Lfe (sub) is the low-frequency
568 /// enhancement channel (sub-woofer).
569 string const channels[] = {
576 _("Hearing impaired"),
577 _("Visually impaired"),
580 _("Left rear surround"),
581 _("Right rear surround"),
583 _("D-BOX secondary"),
593 short_audio_channel_name (int c)
595 DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
597 /// TRANSLATORS: these are short names of audio channels; Lfe is the low-frequency
598 /// enhancement channel (sub-woofer). HI is the hearing-impaired audio track and
599 /// VI is the visually-impaired audio track (audio describe). DBP is the D-BOX
600 /// primary channel and DBS is the D-BOX secondary channel.
601 string const channels[] = {
625 valid_image_file (boost::filesystem::path f)
627 if (boost::starts_with (f.leaf().string(), "._")) {
631 auto ext = f.extension().string();
632 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
634 ext == ".tif" || ext == ".tiff" || ext == ".jpg" || ext == ".jpeg" ||
635 ext == ".png" || ext == ".bmp" || ext == ".tga" || ext == ".dpx" ||
636 ext == ".j2c" || ext == ".j2k" || ext == ".jp2" || ext == ".exr" ||
637 ext == ".jpf" || ext == ".psd"
643 valid_sound_file (boost::filesystem::path f)
645 if (boost::starts_with (f.leaf().string(), "._")) {
649 auto ext = f.extension().string();
650 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
651 return (ext == ".wav" || ext == ".mp3" || ext == ".aif" || ext == ".aiff");
656 valid_j2k_file (boost::filesystem::path f)
658 auto ext = f.extension().string();
659 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
660 return (ext == ".j2k" || ext == ".j2c" || ext == ".jp2");
665 tidy_for_filename (string f)
667 boost::replace_if (f, boost::is_any_of ("\\/:"), '_');
673 fit_ratio_within (float ratio, dcp::Size full_frame)
675 if (ratio < full_frame.ratio ()) {
676 return dcp::Size (lrintf (full_frame.height * ratio), full_frame.height);
679 return dcp::Size (full_frame.width, lrintf (full_frame.width / ratio));
684 wrapped_av_malloc (size_t s)
686 auto p = av_malloc (s);
695 split_get_request (string url)
698 AWAITING_QUESTION_MARK,
701 } state = AWAITING_QUESTION_MARK;
703 map<string, string> r;
706 for (size_t i = 0; i < url.length(); ++i) {
708 case AWAITING_QUESTION_MARK:
723 r.insert (make_pair (k, v));
733 if (state == VALUE) {
734 r.insert (make_pair (k, v));
742 video_asset_filename (shared_ptr<dcp::PictureAsset> asset, int reel_index, int reel_count, optional<string> summary)
744 dcp::NameFormat::Map values;
746 values['r'] = raw_convert<string> (reel_index + 1);
747 values['n'] = raw_convert<string> (reel_count);
749 values['c'] = careful_string_filter (summary.get());
751 return Config::instance()->dcp_asset_filename_format().get(values, "_" + asset->id() + ".mxf");
756 audio_asset_filename (shared_ptr<dcp::SoundAsset> asset, int reel_index, int reel_count, optional<string> summary)
758 dcp::NameFormat::Map values;
760 values['r'] = raw_convert<string> (reel_index + 1);
761 values['n'] = raw_convert<string> (reel_count);
763 values['c'] = careful_string_filter (summary.get());
765 return Config::instance()->dcp_asset_filename_format().get(values, "_" + asset->id() + ".mxf");
770 atmos_asset_filename (shared_ptr<dcp::AtmosAsset> asset, int reel_index, int reel_count, optional<string> summary)
772 dcp::NameFormat::Map values;
773 values['t'] = "atmos";
774 values['r'] = raw_convert<string> (reel_index + 1);
775 values['n'] = raw_convert<string> (reel_count);
777 values['c'] = careful_string_filter (summary.get());
779 return Config::instance()->dcp_asset_filename_format().get(values, "_" + asset->id() + ".mxf");
784 relaxed_string_to_float (string s)
787 boost::algorithm::replace_all (s, ",", ".");
788 return lexical_cast<float> (s);
789 } catch (bad_lexical_cast &) {
790 boost::algorithm::replace_all (s, ".", ",");
791 return lexical_cast<float> (s);
796 careful_string_filter (string s)
798 /* Filter out `bad' characters which `may' cause problems with some systems (either for DCP name or filename).
799 There's no apparent list of what really is allowed, so this is a guess.
800 Safety first and all that.
803 /* First transliterate using libicu to try to remove accents in a "nice" way */
804 auto icu_utf16 = icu::UnicodeString::fromUTF8(icu::StringPiece(s));
805 auto status = U_ZERO_ERROR;
806 auto transliterator = icu::Transliterator::createInstance("NFD; [:M:] Remove; NFC", UTRANS_FORWARD, status);
807 transliterator->transliterate(icu_utf16);
809 icu_utf16.toUTF8String(s);
811 /* Then remove anything that's not in a very limited character set */
812 wstring ws = boost::locale::conv::utf_to_utf<wchar_t>(s);
814 string const allowed = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_%.+";
815 for (size_t i = 0; i < ws.size(); ++i) {
817 if (allowed.find(c) != string::npos) {
822 return boost::locale::conv::utf_to_utf<char>(out);
826 /** @param mapped List of mapped audio channels from a Film.
827 * @param channels Total number of channels in the Film.
828 * @return First: number of non-LFE soundtrack channels (L/R/C/Ls/Rs/Lc/Rc/Bsl/Bsr), second: number of LFE channels.
831 audio_channel_types (list<int> mapped, int channels)
836 for (auto i: mapped) {
838 /* This channel is mapped but is not included in the DCP */
842 switch (static_cast<dcp::Channel>(i)) {
843 case dcp::Channel::LFE:
846 case dcp::Channel::LEFT:
847 case dcp::Channel::RIGHT:
848 case dcp::Channel::CENTRE:
849 case dcp::Channel::LS:
850 case dcp::Channel::RS:
851 case dcp::Channel::BSL:
852 case dcp::Channel::BSR:
855 case dcp::Channel::HI:
856 case dcp::Channel::VI:
857 case dcp::Channel::MOTION_DATA:
858 case dcp::Channel::SYNC_SIGNAL:
859 case dcp::Channel::SIGN_LANGUAGE:
860 case dcp::Channel::CHANNEL_COUNT:
865 return make_pair (non_lfe, lfe);
869 shared_ptr<AudioBuffers>
870 remap (shared_ptr<const AudioBuffers> input, int output_channels, AudioMapping map)
872 auto mapped = make_shared<AudioBuffers>(output_channels, input->frames());
873 mapped->make_silent ();
875 int to_do = min (map.input_channels(), input->channels());
877 for (int i = 0; i < to_do; ++i) {
878 for (int j = 0; j < mapped->channels(); ++j) {
879 if (map.get(i, j) > 0) {
880 mapped->accumulate_channel(
895 increment_eyes (Eyes e)
897 if (e == Eyes::LEFT) {
906 checked_fwrite (void const * ptr, size_t size, FILE* stream, boost::filesystem::path path)
908 size_t N = fwrite (ptr, 1, size, stream);
910 if (ferror(stream)) {
912 throw FileError (String::compose("fwrite error %1", errno), path);
915 throw FileError ("Unexpected short write", path);
922 checked_fread (void* ptr, size_t size, FILE* stream, boost::filesystem::path path)
924 size_t N = fread (ptr, 1, size, stream);
926 if (ferror(stream)) {
928 throw FileError (String::compose("fread error %1", errno), path);
931 throw FileError ("Unexpected short read", path);
938 utf8_strlen (string s)
940 size_t const len = s.length ();
942 for (size_t i = 0; i < len; ++i) {
943 unsigned char c = s[i];
944 if ((c & 0xe0) == 0xc0) {
946 } else if ((c & 0xf0) == 0xe0) {
948 } else if ((c & 0xf8) == 0xf0) {
958 day_of_week_to_string (boost::gregorian::greg_weekday d)
960 switch (d.as_enum()) {
961 case boost::date_time::Sunday:
963 case boost::date_time::Monday:
965 case boost::date_time::Tuesday:
967 case boost::date_time::Wednesday:
968 return _("Wednesday");
969 case boost::date_time::Thursday:
970 return _("Thursday");
971 case boost::date_time::Friday:
973 case boost::date_time::Saturday:
974 return _("Saturday");
977 return d.as_long_string ();
981 /** @param size Size of picture that the subtitle will be overlaid onto */
983 emit_subtitle_image (ContentTimePeriod period, dcp::SubtitleImage sub, dcp::Size size, shared_ptr<TextDecoder> decoder)
985 /* XXX: this is rather inefficient; decoding the image just to get its size */
986 FFmpegImageProxy proxy (sub.png_image());
987 auto image = proxy.image(Image::Alignment::PADDED).image;
988 /* set up rect with height and width */
989 dcpomatic::Rect<double> rect(0, 0, image->size().width / double(size.width), image->size().height / double(size.height));
991 /* add in position */
993 switch (sub.h_align()) {
994 case dcp::HAlign::LEFT:
995 rect.x += sub.h_position();
997 case dcp::HAlign::CENTER:
998 rect.x += 0.5 + sub.h_position() - rect.width / 2;
1000 case dcp::HAlign::RIGHT:
1001 rect.x += 1 - sub.h_position() - rect.width;
1005 switch (sub.v_align()) {
1006 case dcp::VAlign::TOP:
1007 rect.y += sub.v_position();
1009 case dcp::VAlign::CENTER:
1010 rect.y += 0.5 + sub.v_position() - rect.height / 2;
1012 case dcp::VAlign::BOTTOM:
1013 rect.y += 1 - sub.v_position() - rect.height;
1017 decoder->emit_bitmap (period, image, rect);
1022 show_jobs_on_console (bool progress)
1028 dcpomatic_sleep_seconds (5);
1030 auto jobs = JobManager::instance()->get();
1032 if (!first && progress) {
1033 for (size_t i = 0; i < jobs.size(); ++i) {
1034 cout << "\033[1A\033[2K";
1041 for (auto i: jobs) {
1044 if (!i->sub_name().empty()) {
1045 cout << "; " << i->sub_name();
1049 if (i->progress ()) {
1050 cout << i->status() << " \n";
1052 cout << ": Running \n";
1056 if (!progress && i->finished_in_error()) {
1057 /* We won't see this error if we haven't been showing progress,
1060 cout << i->status() << "\n";
1063 if (i->finished_in_error()) {
1068 if (!JobManager::instance()->work_to_do()) {
1077 /** XXX: could use mmap? */
1079 copy_in_bits (boost::filesystem::path from, boost::filesystem::path to, std::function<void (float)> progress)
1081 auto f = fopen_boost (from, "rb");
1083 throw OpenFileError (from, errno, OpenFileError::READ);
1085 auto t = fopen_boost (to, "wb");
1088 throw OpenFileError (to, errno, OpenFileError::WRITE);
1091 /* on the order of a second's worth of copying */
1092 boost::uintmax_t const chunk = 20 * 1024 * 1024;
1094 auto buffer = static_cast<uint8_t*> (malloc(chunk));
1096 throw std::bad_alloc ();
1099 boost::uintmax_t const total = boost::filesystem::file_size (from);
1100 boost::uintmax_t remaining = total;
1103 boost::uintmax_t this_time = min (chunk, remaining);
1104 size_t N = fread (buffer, 1, chunk, f);
1105 if (N < this_time) {
1109 throw ReadFileError (from, errno);
1112 N = fwrite (buffer, 1, this_time, t);
1113 if (N < this_time) {
1117 throw WriteFileError (to, errno);
1120 progress (1 - float(remaining) / total);
1121 remaining -= this_time;
1131 scale_for_display (dcp::Size s, dcp::Size display_container, dcp::Size film_container, PixelQuanta quanta)
1133 /* Now scale it down if the display container is smaller than the film container */
1134 if (display_container != film_container) {
1135 float const scale = min (
1136 float (display_container.width) / film_container.width,
1137 float (display_container.height) / film_container.height
1140 s.width = lrintf (s.width * scale);
1141 s.height = lrintf (s.height * scale);
1142 s = quanta.round (s);
1150 decrypt_kdm_with_helpful_error (dcp::EncryptedKDM kdm)
1153 return dcp::DecryptedKDM (kdm, Config::instance()->decryption_chain()->key().get());
1154 } catch (dcp::KDMDecryptionError& e) {
1155 /* Try to flesh out the error a bit */
1156 auto const kdm_subject_name = kdm.recipient_x509_subject_name();
1157 bool on_chain = false;
1158 auto dc = Config::instance()->decryption_chain();
1159 for (auto i: dc->root_to_leaf()) {
1160 if (i.subject() == kdm_subject_name) {
1165 throw KDMError (_("This KDM was not made for DCP-o-matic's decryption certificate."), e.what());
1166 } else if (kdm_subject_name != dc->leaf().subject()) {
1167 throw KDMError (_("This KDM was made for DCP-o-matic but not for its leaf certificate."), e.what());
1175 boost::filesystem::path
1176 default_font_file ()
1178 boost::filesystem::path liberation_normal;
1180 liberation_normal = resources_path() / "LiberationSans-Regular.ttf";
1181 if (!boost::filesystem::exists (liberation_normal)) {
1182 /* Hack for unit tests */
1183 liberation_normal = resources_path() / "fonts" / "LiberationSans-Regular.ttf";
1185 } catch (boost::filesystem::filesystem_error& e) {
1189 if (!boost::filesystem::exists(liberation_normal)) {
1190 liberation_normal = "/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf";
1193 return liberation_normal;
1200 transform (s.begin(), s.end(), s.begin(), ::toupper);
1205 /* Set to 1 to print the IDs of some of our threads to stdout on creation */
1206 #define DCPOMATIC_DEBUG_THREADS 0
1208 #if DCPOMATIC_DEBUG_THREADS
1210 start_of_thread (string name)
1212 std::cout << "THREAD:" << name << ":" << std::hex << pthread_self() << "\n";
1216 start_of_thread (string)