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;
116 using boost::optional;
117 using boost::lexical_cast;
118 using boost::bad_lexical_cast;
119 using boost::scoped_array;
121 using dcp::raw_convert;
122 using dcp::locale_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;
134 /** Convert some number of seconds to a string representation
135 * in hours, minutes and seconds.
138 * @return String of the form H:M:S (where H is hours, M
139 * is minutes and S is seconds).
142 seconds_to_hms (int s)
150 snprintf (buffer, sizeof(buffer), "%d:%02d:%02d", h, m, s);
155 time_to_hmsf (DCPTime time, Frame rate)
157 Frame f = time.frames_round (rate);
166 snprintf (buffer, sizeof(buffer), "%d:%02d:%02d.%d", h, m, s, static_cast<int>(f));
170 /** @param s Number of seconds.
171 * @return String containing an approximate description of s (e.g. "about 2 hours")
174 seconds_to_approximate_hms (int s)
184 bool minutes = h < 6 && m > 0;
185 bool seconds = h == 0 && m < 10 && s > 0;
187 if (m > 30 && !minutes) {
188 /* round up the hours */
191 if (s > 30 && !seconds) {
192 /* round up the minutes */
202 /// TRANSLATORS: h here is an abbreviation for hours
203 ap += locale_convert<string>(h) + _("h");
205 if (minutes || seconds) {
211 /// TRANSLATORS: m here is an abbreviation for minutes
212 ap += locale_convert<string>(m) + _("m");
221 /// TRANSLATORS: s here is an abbreviation for seconds
222 ap += locale_convert<string>(s) + _("s");
229 seconds (struct timeval t)
231 return t.tv_sec + (double (t.tv_usec) / 1e6);
234 #ifdef DCPOMATIC_WINDOWS
236 /** Resolve symbol name and source location given the path to the executable */
238 addr2line (void const * const addr)
240 char addr2line_cmd[512] = { 0 };
241 sprintf (addr2line_cmd, "addr2line -f -p -e %.256s %p > %s", program_name.c_str(), addr, backtrace_file.string().c_str());
242 return system(addr2line_cmd);
245 DCPOMATIC_DISABLE_WARNINGS
246 /** This is called when C signals occur on Windows (e.g. SIGSEGV)
247 * (NOT C++ exceptions!). We write a backtrace to backtrace_file by dark means.
248 * Adapted from code here: http://spin.atomicobject.com/2013/01/13/exceptions-stack-traces-c/
251 exception_handler(struct _EXCEPTION_POINTERS * info)
253 auto f = fopen_boost (backtrace_file, "w");
254 fprintf (f, "C-style exception %d\n", info->ExceptionRecord->ExceptionCode);
257 if (info->ExceptionRecord->ExceptionCode != EXCEPTION_STACK_OVERFLOW) {
258 CONTEXT* context = info->ContextRecord;
259 SymInitialize (GetCurrentProcess (), 0, true);
261 STACKFRAME frame = { 0 };
263 /* setup initial stack frame */
265 frame.AddrPC.Offset = context->Rip;
266 frame.AddrStack.Offset = context->Rsp;
267 frame.AddrFrame.Offset = context->Rbp;
269 frame.AddrPC.Offset = context->Eip;
270 frame.AddrStack.Offset = context->Esp;
271 frame.AddrFrame.Offset = context->Ebp;
273 frame.AddrPC.Mode = AddrModeFlat;
274 frame.AddrStack.Mode = AddrModeFlat;
275 frame.AddrFrame.Mode = AddrModeFlat;
279 IMAGE_FILE_MACHINE_I386,
280 GetCurrentProcess (),
285 SymFunctionTableAccess,
290 addr2line((void *) frame.AddrPC.Offset);
294 addr2line ((void *) info->ContextRecord->Rip);
296 addr2line ((void *) info->ContextRecord->Eip);
300 return EXCEPTION_CONTINUE_SEARCH;
302 DCPOMATIC_ENABLE_WARNINGS
306 set_backtrace_file (boost::filesystem::path p)
311 /** This is called when there is an unhandled exception. Any
312 * backtrace in this function is useless on Windows as the stack has
313 * already been unwound from the throw; we have the gdb wrap hack to
320 static bool tried_throw = false;
321 // try once to re-throw currently active exception
327 catch (const std::exception &e) {
328 std::cerr << __FUNCTION__ << " caught unhandled exception. what(): "
329 << e.what() << std::endl;
332 std::cerr << __FUNCTION__ << " caught unknown/unhandled exception."
340 dcpomatic_setup_path_encoding ()
342 #ifdef DCPOMATIC_WINDOWS
343 /* Dark voodoo which, I think, gets boost::filesystem::path to
344 correctly convert UTF-8 strings to paths, and also paths
345 back to UTF-8 strings (on path::string()).
347 After this, constructing boost::filesystem::paths from strings
348 converts from UTF-8 to UTF-16 inside the path. Then
349 path::string().c_str() gives UTF-8 and
350 path::c_str() gives UTF-16.
352 This is all Windows-only. AFAICT Linux/OS X use UTF-8 everywhere,
353 so things are much simpler.
355 std::locale::global (boost::locale::generator().generate (""));
356 boost::filesystem::path::imbue (std::locale ());
360 /** Call the required functions to set up DCP-o-matic's static arrays, etc.
361 * Must be called from the UI thread, if there is one.
366 #ifdef DCPOMATIC_WINDOWS
367 boost::filesystem::path p = g_get_user_config_dir ();
368 p /= "backtrace.txt";
369 set_backtrace_file (p);
370 SetUnhandledExceptionFilter(exception_handler);
373 #ifdef DCPOMATIC_HAVE_AVREGISTER
374 DCPOMATIC_DISABLE_WARNINGS
376 avfilter_register_all ();
377 DCPOMATIC_ENABLE_WARNINGS
381 /* Add our library directory to the libltdl search path so that
382 xmlsec can find xmlsec1-openssl.
384 auto lib = directory_containing_executable().parent_path();
386 setenv ("LTDL_LIBRARY_PATH", lib.c_str (), 1);
389 set_terminate (terminate);
391 #ifdef DCPOMATIC_WINDOWS
392 putenv ("PANGOCAIRO_BACKEND=fontconfig");
393 putenv (String::compose("FONTCONFIG_PATH=%1", resources_path().string()).c_str());
397 setenv ("PANGOCAIRO_BACKEND", "fontconfig", 1);
398 setenv ("FONTCONFIG_PATH", resources_path().string().c_str(), 1);
402 dcp::init (tags_path());
404 #if defined(DCPOMATIC_WINDOWS) || defined(DCPOMATIC_OSX)
405 /* Render something to fontconfig to create its cache */
406 list<StringText> subs;
407 dcp::SubtitleString ss(
408 optional<string>(), false, false, false, dcp::Colour(), 42, 1, dcp::Time(), dcp::Time(), 0, dcp::HAlign::CENTER, 0, dcp::VAlign::CENTER, dcp::Direction::LTR,
409 "Hello dolly", dcp::Effect::NONE, dcp::Colour(), dcp::Time(), dcp::Time(), 0
411 subs.push_back (StringText(ss, 0));
412 render_text (subs, list<shared_ptr<Font>>(), dcp::Size(640, 480), DCPTime(), 24);
415 Ratio::setup_ratios ();
416 PresetColourConversion::setup_colour_conversion_presets ();
417 DCPContentType::setup_dcp_content_types ();
418 Filter::setup_filters ();
419 CinemaSoundProcessor::setup_cinema_sound_processors ();
420 AudioProcessor::setup_audio_processors ();
422 curl_global_init (CURL_GLOBAL_ALL);
424 ui_thread = boost::this_thread::get_id ();
427 #ifdef DCPOMATIC_WINDOWS
428 boost::filesystem::path
432 GetModuleFileName (0, buffer, 512 * sizeof(wchar_t));
433 boost::filesystem::path p (buffer);
434 p = p.parent_path ();
435 p = p.parent_path ();
442 boost::filesystem::path
445 return "DCP-o-matic 2.app/Contents/Resources";
450 dcpomatic_setup_gettext_i18n (string lang)
452 #ifdef DCPOMATIC_LINUX
456 if (!lang.empty ()) {
457 /* Override our environment language. Note that the caller must not
458 free the string passed into putenv().
460 string s = String::compose ("LANGUAGE=%1", lang);
461 putenv (strdup (s.c_str ()));
462 s = String::compose ("LANG=%1", lang);
463 putenv (strdup (s.c_str ()));
464 s = String::compose ("LC_ALL=%1", lang);
465 putenv (strdup (s.c_str ()));
468 setlocale (LC_ALL, "");
469 textdomain ("libdcpomatic2");
471 #if defined(DCPOMATIC_WINDOWS) || defined(DCPOMATIC_OSX)
472 bindtextdomain ("libdcpomatic2", mo_path().string().c_str());
473 bind_textdomain_codeset ("libdcpomatic2", "UTF8");
476 #ifdef DCPOMATIC_LINUX
477 bindtextdomain ("libdcpomatic2", LINUX_LOCALE_PREFIX);
481 /** Compute a digest of the first and last `size' bytes of a set of files. */
483 digest_head_tail (vector<boost::filesystem::path> files, boost::uintmax_t size)
485 boost::scoped_array<char> buffer (new char[size]);
489 boost::uintmax_t to_do = size;
490 char* p = buffer.get ();
492 while (i < int64_t (files.size()) && to_do > 0) {
493 auto f = fopen_boost (files[i], "rb");
495 throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
498 boost::uintmax_t this_time = min (to_do, boost::filesystem::file_size (files[i]));
499 checked_fread (p, this_time, f, files[i]);
506 digester.add (buffer.get(), size - to_do);
511 i = files.size() - 1;
512 while (i >= 0 && to_do > 0) {
513 auto f = fopen_boost (files[i], "rb");
515 throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
518 boost::uintmax_t this_time = min (to_do, boost::filesystem::file_size (files[i]));
519 dcpomatic_fseek (f, -this_time, SEEK_END);
520 checked_fread (p, this_time, f, files[i]);
527 digester.add (buffer.get(), size - to_do);
529 return digester.get ();
532 /** Round a number up to the nearest multiple of another number.
534 * @param stride Array of numbers to round, indexed by c.
535 * @param t Multiple to round to.
536 * @return Rounded number.
539 stride_round_up (int c, int const * stride, int t)
541 int const a = stride[c] + (t - 1);
545 /** Trip an assert if the caller is not in the UI thread */
549 DCPOMATIC_ASSERT (boost::this_thread::get_id() == ui_thread);
553 audio_channel_name (int c)
555 DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
557 /// TRANSLATORS: these are the names of audio channels; Lfe (sub) is the low-frequency
558 /// enhancement channel (sub-woofer).
559 string const channels[] = {
566 _("Hearing impaired"),
567 _("Visually impaired"),
570 _("Left rear surround"),
571 _("Right rear surround"),
573 _("D-BOX secondary"),
582 short_audio_channel_name (int c)
584 DCPOMATIC_ASSERT (MAX_DCP_AUDIO_CHANNELS == 16);
586 /// TRANSLATORS: these are short names of audio channels; Lfe is the low-frequency
587 /// enhancement channel (sub-woofer). HI is the hearing-impaired audio track and
588 /// VI is the visually-impaired audio track (audio describe). DBP is the D-BOX
589 /// primary channel and DBS is the D-BOX secondary channel.
590 string const channels[] = {
614 valid_image_file (boost::filesystem::path f)
616 if (boost::starts_with (f.leaf().string(), "._")) {
620 auto ext = f.extension().string();
621 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
623 ext == ".tif" || ext == ".tiff" || ext == ".jpg" || ext == ".jpeg" ||
624 ext == ".png" || ext == ".bmp" || ext == ".tga" || ext == ".dpx" ||
625 ext == ".j2c" || ext == ".j2k" || ext == ".jp2" || ext == ".exr" ||
626 ext == ".jpf" || ext == ".psd"
631 valid_sound_file (boost::filesystem::path f)
633 if (boost::starts_with (f.leaf().string(), "._")) {
637 auto ext = f.extension().string();
638 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
639 return (ext == ".wav" || ext == ".mp3" || ext == ".aif" || ext == ".aiff");
643 valid_j2k_file (boost::filesystem::path f)
645 auto ext = f.extension().string();
646 transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
647 return (ext == ".j2k" || ext == ".j2c" || ext == ".jp2");
651 tidy_for_filename (string f)
653 boost::replace_if (f, boost::is_any_of ("\\/:"), '_');
658 fit_ratio_within (float ratio, dcp::Size full_frame)
660 if (ratio < full_frame.ratio ()) {
661 return dcp::Size (lrintf (full_frame.height * ratio), full_frame.height);
664 return dcp::Size (full_frame.width, lrintf (full_frame.width / ratio));
668 wrapped_av_malloc (size_t s)
670 auto p = av_malloc (s);
678 split_get_request (string url)
681 AWAITING_QUESTION_MARK,
684 } state = AWAITING_QUESTION_MARK;
686 map<string, string> r;
689 for (size_t i = 0; i < url.length(); ++i) {
691 case AWAITING_QUESTION_MARK:
706 r.insert (make_pair (k, v));
716 if (state == VALUE) {
717 r.insert (make_pair (k, v));
724 video_asset_filename (shared_ptr<dcp::PictureAsset> asset, int reel_index, int reel_count, optional<string> summary)
726 dcp::NameFormat::Map values;
728 values['r'] = raw_convert<string> (reel_index + 1);
729 values['n'] = raw_convert<string> (reel_count);
731 values['c'] = careful_string_filter (summary.get());
733 return Config::instance()->dcp_asset_filename_format().get(values, "_" + asset->id() + ".mxf");
737 audio_asset_filename (shared_ptr<dcp::SoundAsset> asset, int reel_index, int reel_count, optional<string> summary)
739 dcp::NameFormat::Map values;
741 values['r'] = raw_convert<string> (reel_index + 1);
742 values['n'] = raw_convert<string> (reel_count);
744 values['c'] = careful_string_filter (summary.get());
746 return Config::instance()->dcp_asset_filename_format().get(values, "_" + asset->id() + ".mxf");
751 atmos_asset_filename (shared_ptr<dcp::AtmosAsset> asset, int reel_index, int reel_count, optional<string> summary)
753 dcp::NameFormat::Map values;
754 values['t'] = "atmos";
755 values['r'] = raw_convert<string> (reel_index + 1);
756 values['n'] = raw_convert<string> (reel_count);
758 values['c'] = careful_string_filter (summary.get());
760 return Config::instance()->dcp_asset_filename_format().get(values, "_" + asset->id() + ".mxf");
765 relaxed_string_to_float (string s)
768 boost::algorithm::replace_all (s, ",", ".");
769 return lexical_cast<float> (s);
770 } catch (bad_lexical_cast &) {
771 boost::algorithm::replace_all (s, ".", ",");
772 return lexical_cast<float> (s);
777 careful_string_filter (string s)
779 /* Filter out `bad' characters which `may' cause problems with some systems (either for DCP name or filename).
780 There's no apparent list of what really is allowed, so this is a guess.
781 Safety first and all that.
784 /* First transliterate using libicu to try to remove accents in a "nice" way */
785 auto icu_utf16 = icu::UnicodeString::fromUTF8(icu::StringPiece(s));
786 auto status = U_ZERO_ERROR;
787 auto transliterator = icu::Transliterator::createInstance("NFD; [:M:] Remove; NFC", UTRANS_FORWARD, status);
788 transliterator->transliterate(icu_utf16);
790 icu_utf16.toUTF8String(s);
792 /* Then remove anything that's not in a very limited character set */
793 wstring ws = boost::locale::conv::utf_to_utf<wchar_t>(s);
795 string const allowed = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_%.+";
796 for (size_t i = 0; i < ws.size(); ++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) {
883 checked_fwrite (void const * ptr, size_t size, FILE* stream, boost::filesystem::path path)
885 size_t N = fwrite (ptr, 1, size, stream);
887 if (ferror(stream)) {
889 throw FileError (String::compose("fwrite error %1", errno), path);
892 throw FileError ("Unexpected short write", path);
898 checked_fread (void* ptr, size_t size, FILE* stream, boost::filesystem::path path)
900 size_t N = fread (ptr, 1, size, stream);
902 if (ferror(stream)) {
904 throw FileError (String::compose("fread error %1", errno), path);
907 throw FileError ("Unexpected short read", path);
913 utf8_strlen (string s)
915 size_t const len = s.length ();
917 for (size_t i = 0; i < len; ++i) {
918 unsigned char c = s[i];
919 if ((c & 0xe0) == 0xc0) {
921 } else if ((c & 0xf0) == 0xe0) {
923 } else if ((c & 0xf8) == 0xf0) {
932 day_of_week_to_string (boost::gregorian::greg_weekday d)
934 switch (d.as_enum()) {
935 case boost::date_time::Sunday:
937 case boost::date_time::Monday:
939 case boost::date_time::Tuesday:
941 case boost::date_time::Wednesday:
942 return _("Wednesday");
943 case boost::date_time::Thursday:
944 return _("Thursday");
945 case boost::date_time::Friday:
947 case boost::date_time::Saturday:
948 return _("Saturday");
951 return d.as_long_string ();
954 /** @param size Size of picture that the subtitle will be overlaid onto */
956 emit_subtitle_image (ContentTimePeriod period, dcp::SubtitleImage sub, dcp::Size size, shared_ptr<TextDecoder> decoder)
958 /* XXX: this is rather inefficient; decoding the image just to get its size */
959 FFmpegImageProxy proxy (sub.png_image());
960 auto image = proxy.image(Image::Alignment::PADDED).image;
961 /* set up rect with height and width */
962 dcpomatic::Rect<double> rect(0, 0, image->size().width / double(size.width), image->size().height / double(size.height));
964 /* add in position */
966 switch (sub.h_align()) {
967 case dcp::HAlign::LEFT:
968 rect.x += sub.h_position();
970 case dcp::HAlign::CENTER:
971 rect.x += 0.5 + sub.h_position() - rect.width / 2;
973 case dcp::HAlign::RIGHT:
974 rect.x += 1 - sub.h_position() - rect.width;
978 switch (sub.v_align()) {
979 case dcp::VAlign::TOP:
980 rect.y += sub.v_position();
982 case dcp::VAlign::CENTER:
983 rect.y += 0.5 + sub.v_position() - rect.height / 2;
985 case dcp::VAlign::BOTTOM:
986 rect.y += 1 - sub.v_position() - rect.height;
990 decoder->emit_bitmap (period, image, rect);
994 show_jobs_on_console (bool progress)
1000 dcpomatic_sleep_seconds (5);
1002 auto jobs = JobManager::instance()->get();
1004 if (!first && progress) {
1005 for (size_t i = 0; i < jobs.size(); ++i) {
1006 cout << "\033[1A\033[2K";
1013 for (auto i: jobs) {
1016 if (!i->sub_name().empty()) {
1017 cout << "; " << i->sub_name();
1021 if (i->progress ()) {
1022 cout << i->status() << " \n";
1024 cout << ": Running \n";
1028 if (!progress && i->finished_in_error()) {
1029 /* We won't see this error if we haven't been showing progress,
1032 cout << i->status() << "\n";
1035 if (i->finished_in_error()) {
1040 if (!JobManager::instance()->work_to_do()) {
1048 /** XXX: could use mmap? */
1050 copy_in_bits (boost::filesystem::path from, boost::filesystem::path to, std::function<void (float)> progress)
1052 auto f = fopen_boost (from, "rb");
1054 throw OpenFileError (from, errno, OpenFileError::READ);
1056 auto t = fopen_boost (to, "wb");
1059 throw OpenFileError (to, errno, OpenFileError::WRITE);
1062 /* on the order of a second's worth of copying */
1063 boost::uintmax_t const chunk = 20 * 1024 * 1024;
1065 auto buffer = static_cast<uint8_t*> (malloc(chunk));
1067 throw std::bad_alloc ();
1070 boost::uintmax_t const total = boost::filesystem::file_size (from);
1071 boost::uintmax_t remaining = total;
1074 boost::uintmax_t this_time = min (chunk, remaining);
1075 size_t N = fread (buffer, 1, chunk, f);
1076 if (N < this_time) {
1080 throw ReadFileError (from, errno);
1083 N = fwrite (buffer, 1, this_time, t);
1084 if (N < this_time) {
1088 throw WriteFileError (to, errno);
1091 progress (1 - float(remaining) / total);
1092 remaining -= this_time;
1101 db_to_linear (double db)
1103 return pow(10, db / 20);
1107 linear_to_db (double linear)
1109 return 20 * log10(linear);
1114 scale_for_display (dcp::Size s, dcp::Size display_container, dcp::Size film_container, PixelQuanta quanta)
1116 /* Now scale it down if the display container is smaller than the film container */
1117 if (display_container != film_container) {
1118 float const scale = min (
1119 float (display_container.width) / film_container.width,
1120 float (display_container.height) / film_container.height
1123 s.width = lrintf (s.width * scale);
1124 s.height = lrintf (s.height * scale);
1125 s = quanta.round (s);
1133 decrypt_kdm_with_helpful_error (dcp::EncryptedKDM kdm)
1136 return dcp::DecryptedKDM (kdm, Config::instance()->decryption_chain()->key().get());
1137 } catch (dcp::KDMDecryptionError& e) {
1138 /* Try to flesh out the error a bit */
1139 auto const kdm_subject_name = kdm.recipient_x509_subject_name();
1140 bool on_chain = false;
1141 auto dc = Config::instance()->decryption_chain();
1142 for (auto i: dc->root_to_leaf()) {
1143 if (i.subject() == kdm_subject_name) {
1148 throw KDMError (_("This KDM was not made for DCP-o-matic's decryption certificate."), e.what());
1149 } else if (kdm_subject_name != dc->leaf().subject()) {
1150 throw KDMError (_("This KDM was made for DCP-o-matic but not for its leaf certificate."), e.what());
1158 boost::filesystem::path
1159 default_font_file ()
1161 boost::filesystem::path liberation_normal;
1163 liberation_normal = resources_path() / "LiberationSans-Regular.ttf";
1164 if (!boost::filesystem::exists (liberation_normal)) {
1165 /* Hack for unit tests */
1166 liberation_normal = resources_path() / "fonts" / "LiberationSans-Regular.ttf";
1168 } catch (boost::filesystem::filesystem_error& e) {
1172 if (!boost::filesystem::exists(liberation_normal)) {
1173 liberation_normal = "/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf";
1176 return liberation_normal;
1183 transform (s.begin(), s.end(), s.begin(), ::toupper);
1188 /* Set to 1 to print the IDs of some of our threads to stdout on creation */
1189 #define DCPOMATIC_DEBUG_THREADS 0
1191 #if DCPOMATIC_DEBUG_THREADS
1193 start_of_thread (string name)
1195 std::cout << "THREAD:" << name << ":" << std::hex << pthread_self() << "\n";
1199 start_of_thread (string)