/*
- Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
* @brief Some utility functions and classes.
*/
-#include "util.h"
-#include "exceptions.h"
-#include "dcp_content_type.h"
-#include "filter.h"
+
+#define UNICODE 1
+
+
+#include "audio_buffers.h"
+#include "audio_processor.h"
#include "cinema_sound_processor.h"
+#include "compose.hpp"
#include "config.h"
-#include "ratio.h"
-#include "job.h"
+#include "constants.h"
#include "cross.h"
-#include "video_content.h"
-#include "rect.h"
+#include "crypto.h"
+#include "dcp_content_type.h"
+#include "dcpomatic_log.h"
#include "digester.h"
-#include "audio_processor.h"
-#include "compose.hpp"
+#include "exceptions.h"
+#include "ffmpeg_image_proxy.h"
+#include "filter.h"
+#include "font.h"
+#include "image.h"
+#include "job.h"
+#include "job_manager.h"
+#include "ratio.h"
+#include "rect.h"
+#include "render_text.h"
+#include "scope_guard.h"
+#include "string_text.h"
+#include "text_decoder.h"
+#include "util.h"
+#include "video_content.h"
+#include <dcp/atmos_asset.h>
+#include <dcp/decrypted_kdm.h>
#include <dcp/locale_convert.h>
-#include <dcp/util.h>
-#include <dcp/raw_convert.h>
#include <dcp/picture_asset.h>
+#include <dcp/raw_convert.h>
#include <dcp/sound_asset.h>
#include <dcp/subtitle_asset.h>
+#include <dcp/util.h>
+#include <dcp/warnings.h>
+LIBDCP_DISABLE_WARNINGS
extern "C" {
#include <libavfilter/avfilter.h>
#include <libavformat/avformat.h>
#include <libavcodec/avcodec.h>
}
+LIBDCP_ENABLE_WARNINGS
#include <curl/curl.h>
-#ifdef DCPOMATIC_GRAPHICS_MAGICK
-#include <Magick++.h>
-#endif
#include <glib.h>
#include <pangomm/init.h>
+#include <unicode/utypes.h>
+#include <unicode/unistr.h>
+#include <unicode/translit.h>
+#include <unicode/brkiter.h>
#include <boost/algorithm/string.hpp>
#include <boost/range/algorithm/replace_if.hpp>
#include <boost/thread.hpp>
#include <boost/filesystem.hpp>
-#ifdef DCPOMATIC_WINDOWS
+LIBDCP_DISABLE_WARNINGS
#include <boost/locale.hpp>
+LIBDCP_ENABLE_WARNINGS
+#ifdef DCPOMATIC_WINDOWS
#include <dbghelp.h>
#endif
#include <signal.h>
#include "i18n.h"
-using std::string;
-using std::setfill;
-using std::ostream;
+
+using std::bad_alloc;
+using std::cout;
using std::endl;
-using std::vector;
-using std::min;
-using std::max;
-using std::map;
-using std::list;
-using std::multimap;
using std::istream;
+using std::list;
+using std::make_pair;
+using std::make_shared;
+using std::map;
+using std::min;
+using std::ostream;
using std::pair;
-using std::cout;
-using std::bad_alloc;
using std::set_terminate;
-using std::make_pair;
-using boost::shared_ptr;
+using std::shared_ptr;
+using std::string;
+using std::vector;
+using std::wstring;
using boost::thread;
using boost::optional;
using boost::lexical_cast;
using boost::bad_lexical_cast;
+using boost::scoped_array;
using dcp::Size;
using dcp::raw_convert;
using dcp::locale_convert;
+using namespace dcpomatic;
+
/** Path to our executable, required by the stacktrace stuff and filled
* in during App::onInit().
*/
string program_name;
+bool is_batch_converter = false;
static boost::thread::id ui_thread;
static boost::filesystem::path backtrace_file;
return buffer;
}
+string
+time_to_hmsf (DCPTime time, Frame rate)
+{
+ Frame f = time.frames_round (rate);
+ int s = f / rate;
+ f -= (s * rate);
+ int m = s / 60;
+ s -= m * 60;
+ int h = m / 60;
+ m -= h * 60;
+
+ char buffer[64];
+ snprintf (buffer, sizeof(buffer), "%d:%02d:%02d.%d", h, m, s, static_cast<int>(f));
+ return buffer;
+}
+
/** @param s Number of seconds.
* @return String containing an approximate description of s (e.g. "about 2 hours")
*/
string ap;
- bool const hours = h > 0;
- bool const minutes = h < 6 && m > 0;
- bool const seconds = h == 0 && m < 10 && s > 0;
+ bool hours = h > 0;
+ bool minutes = h < 6 && m > 0;
+ bool seconds = h == 0 && m < 10 && s > 0;
- if (hours) {
- if (m > 30 && !minutes) {
- /// TRANSLATORS: h here is an abbreviation for hours
- ap += locale_convert<string>(h + 1) + _("h");
- } else {
- /// TRANSLATORS: h here is an abbreviation for hours
- ap += locale_convert<string>(h) + _("h");
+ if (m > 30 && !minutes) {
+ /* round up the hours */
+ ++h;
+ }
+ if (s > 30 && !seconds) {
+ /* round up the minutes */
+ ++m;
+ if (m == 60) {
+ m = 0;
+ minutes = false;
+ ++h;
}
+ }
+
+ if (hours) {
+ /// TRANSLATORS: h here is an abbreviation for hours
+ ap += locale_convert<string>(h) + _("h");
if (minutes || seconds) {
ap += N_(" ");
}
if (minutes) {
- /* Minutes */
- if (s > 30 && !seconds) {
- /// TRANSLATORS: m here is an abbreviation for minutes
- ap += locale_convert<string>(m + 1) + _("m");
- } else {
- /// TRANSLATORS: m here is an abbreviation for minutes
- ap += locale_convert<string>(m) + _("m");
- }
+ /// TRANSLATORS: m here is an abbreviation for minutes
+ ap += locale_convert<string>(m) + _("m");
if (seconds) {
ap += N_(" ");
return system(addr2line_cmd);
}
+LIBDCP_DISABLE_WARNINGS
/** This is called when C signals occur on Windows (e.g. SIGSEGV)
* (NOT C++ exceptions!). We write a backtrace to backtrace_file by dark means.
* Adapted from code here: http://spin.atomicobject.com/2013/01/13/exceptions-stack-traces-c/
LONG WINAPI
exception_handler(struct _EXCEPTION_POINTERS * info)
{
- FILE* f = fopen_boost (backtrace_file, "w");
- fprintf (f, "C-style exception %d\n", info->ExceptionRecord->ExceptionCode);
- fclose(f);
+ dcp::File f(backtrace_file, "w");
+ if (f) {
+ fprintf(f.get(), "C-style exception %d\n", info->ExceptionRecord->ExceptionCode);
+ f.close();
+ }
if (info->ExceptionRecord->ExceptionCode != EXCEPTION_STACK_OVERFLOW) {
CONTEXT* context = info->ContextRecord;
return EXCEPTION_CONTINUE_SEARCH;
}
+LIBDCP_ENABLE_WARNINGS
#endif
void
#endif
}
+
+class LogSink : public Kumu::ILogSink
+{
+public:
+ LogSink () {}
+ LogSink (LogSink const&) = delete;
+ LogSink& operator= (LogSink const&) = delete;
+
+ void WriteEntry(const Kumu::LogEntry& entry) override {
+ Kumu::AutoMutex L(m_lock);
+ WriteEntryToListeners(entry);
+ if (entry.TestFilter(m_filter)) {
+ string buffer;
+ entry.CreateStringWithOptions(buffer, m_options);
+ LOG_GENERAL("asdcplib: %1", buffer);
+ }
+ }
+};
+
+
+void
+capture_asdcp_logs ()
+{
+ static LogSink log_sink;
+ Kumu::SetDefaultLogSink(&log_sink);
+}
+
+
+static
+void
+ffmpeg_log_callback(void* ptr, int level, const char* fmt, va_list vl)
+{
+ if (level > AV_LOG_WARNING) {
+ return;
+ }
+
+ char line[1024];
+ static int prefix = 0;
+ av_log_format_line(ptr, level, fmt, vl, line, sizeof (line), &prefix);
+ string str(line);
+ boost::algorithm::trim(str);
+ dcpomatic_log->log(String::compose("FFmpeg: %1", str), LogEntry::TYPE_GENERAL);
+}
+
+
+static
+void
+capture_ffmpeg_logs()
+{
+ av_log_set_callback(ffmpeg_log_callback);
+}
+
+
/** Call the required functions to set up DCP-o-matic's static arrays, etc.
* Must be called from the UI thread, if there is one.
*/
SetUnhandledExceptionFilter(exception_handler);
#endif
+#ifdef DCPOMATIC_HAVE_AVREGISTER
+LIBDCP_DISABLE_WARNINGS
av_register_all ();
avfilter_register_all ();
+LIBDCP_ENABLE_WARNINGS
+#endif
#ifdef DCPOMATIC_OSX
- /* Add our lib directory to the libltdl search path so that
+ /* Add our library directory to the libltdl search path so that
xmlsec can find xmlsec1-openssl.
*/
- boost::filesystem::path lib = app_contents ();
- lib /= "lib";
+ auto lib = directory_containing_executable().parent_path();
+ lib /= "Frameworks";
setenv ("LTDL_LIBRARY_PATH", lib.c_str (), 1);
#endif
set_terminate (terminate);
+#ifdef DCPOMATIC_WINDOWS
+ putenv ("PANGOCAIRO_BACKEND=fontconfig");
+ putenv (String::compose("FONTCONFIG_PATH=%1", resources_path().string()).c_str());
+#endif
+
+#ifdef DCPOMATIC_OSX
+ setenv ("PANGOCAIRO_BACKEND", "fontconfig", 1);
+ setenv ("FONTCONFIG_PATH", resources_path().string().c_str(), 1);
+#endif
+
Pango::init ();
- dcp::init ();
+ dcp::init (libdcp_resources_path());
+
+#if defined(DCPOMATIC_WINDOWS) || defined(DCPOMATIC_OSX)
+ /* Render something to fontconfig to create its cache */
+ list<StringText> subs;
+ dcp::SubtitleString ss(
+ 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,
+ "Hello dolly", dcp::Effect::NONE, dcp::Colour(), dcp::Time(), dcp::Time(), 0
+ );
+ subs.push_back(StringText(ss, 0, {}, dcp::SubtitleStandard::SMPTE_2014));
+ render_text (subs, dcp::Size(640, 480), DCPTime(), 24);
+#endif
Ratio::setup_ratios ();
PresetColourConversion::setup_colour_conversion_presets ();
- VideoContentScale::setup_scales ();
DCPContentType::setup_dcp_content_types ();
Filter::setup_filters ();
CinemaSoundProcessor::setup_cinema_sound_processors ();
curl_global_init (CURL_GLOBAL_ALL);
-#ifdef DCPOMATIC_GRAPHICS_MAGICK
- Magick::InitializeMagick (0);
-#endif
-
ui_thread = boost::this_thread::get_id ();
+
+ capture_asdcp_logs ();
+ capture_ffmpeg_logs();
}
#ifdef DCPOMATIC_WINDOWS
char* p = buffer.get ();
int i = 0;
while (i < int64_t (files.size()) && to_do > 0) {
- FILE* f = fopen_boost (files[i], "rb");
+ dcp::File f(files[i], "rb");
if (!f) {
- throw OpenFileError (files[i].string(), errno, true);
+ throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
}
boost::uintmax_t this_time = min (to_do, boost::filesystem::file_size (files[i]));
- fread (p, 1, this_time, f);
+ f.checked_read(p, this_time);
p += this_time;
to_do -= this_time;
- fclose (f);
++i;
}
p = buffer.get ();
i = files.size() - 1;
while (i >= 0 && to_do > 0) {
- FILE* f = fopen_boost (files[i], "rb");
+ dcp::File f(files[i], "rb");
if (!f) {
- throw OpenFileError (files[i].string(), errno, true);
+ throw OpenFileError (files[i].string(), errno, OpenFileError::READ);
}
boost::uintmax_t this_time = min (to_do, boost::filesystem::file_size (files[i]));
- dcpomatic_fseek (f, -this_time, SEEK_END);
- fread (p, 1, this_time, f);
+ f.seek(-this_time, SEEK_END);
+ f.checked_read(p, this_time);
p += this_time;
to_do -= this_time;
- fclose (f);
--i;
}
return digester.get ();
}
-/** Round a number up to the nearest multiple of another number.
- * @param c Index.
- * @param stride Array of numbers to round, indexed by c.
- * @param t Multiple to round to.
- * @return Rounded number.
- */
-int
-stride_round_up (int c, int const * stride, int t)
+
+string
+simple_digest (vector<boost::filesystem::path> paths)
{
- int const a = stride[c] + (t - 1);
- return a - (a % t);
+ return digest_head_tail(paths, 1000000) + raw_convert<string>(boost::filesystem::file_size(paths.front()));
}
+
/** Trip an assert if the caller is not in the UI thread */
void
ensure_ui_thread ()
_("Rs"),
_("HI"),
_("VI"),
- _("Lc"),
- _("Rc"),
+ _("9"),
+ _("10"),
_("BsL"),
_("BsR"),
_("DBP"),
_("DBS"),
- "",
- ""
+ _("Sign"),
+ _("16")
};
return channels[c];
return false;
}
- string ext = f.extension().string();
+ auto ext = f.extension().string();
transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
return (
ext == ".tif" || ext == ".tiff" || ext == ".jpg" || ext == ".jpeg" ||
ext == ".png" || ext == ".bmp" || ext == ".tga" || ext == ".dpx" ||
- ext == ".j2c" || ext == ".j2k" || ext == ".jp2"
+ ext == ".j2c" || ext == ".j2k" || ext == ".jp2" || ext == ".exr" ||
+ ext == ".jpf" || ext == ".psd"
);
}
return false;
}
- string ext = f.extension().string();
+ auto ext = f.extension().string();
transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
return (ext == ".wav" || ext == ".mp3" || ext == ".aif" || ext == ".aiff");
}
bool
valid_j2k_file (boost::filesystem::path f)
{
- string ext = f.extension().string();
+ auto ext = f.extension().string();
transform (ext.begin(), ext.end(), ext.begin(), ::tolower);
return (ext == ".j2k" || ext == ".j2c" || ext == ".jp2");
}
return dcp::Size (full_frame.width, lrintf (full_frame.width / ratio));
}
-void *
-wrapped_av_malloc (size_t s)
+static
+string
+asset_filename (shared_ptr<dcp::Asset> asset, string type, int reel_index, int reel_count, optional<string> summary, string extension)
{
- void* p = av_malloc (s);
- if (!p) {
- throw bad_alloc ();
+ dcp::NameFormat::Map values;
+ values['t'] = type;
+ values['r'] = raw_convert<string>(reel_index + 1);
+ values['n'] = raw_convert<string>(reel_count);
+ if (summary) {
+ values['c'] = careful_string_filter(summary.get());
}
- return p;
+ return Config::instance()->dcp_asset_filename_format().get(values, "_" + asset->id() + extension);
}
-map<string, string>
-split_get_request (string url)
-{
- enum {
- AWAITING_QUESTION_MARK,
- KEY,
- VALUE
- } state = AWAITING_QUESTION_MARK;
-
- map<string, string> r;
- string k;
- string v;
- for (size_t i = 0; i < url.length(); ++i) {
- switch (state) {
- case AWAITING_QUESTION_MARK:
- if (url[i] == '?') {
- state = KEY;
- }
- break;
- case KEY:
- if (url[i] == '=') {
- v.clear ();
- state = VALUE;
- } else {
- k += url[i];
- }
- break;
- case VALUE:
- if (url[i] == '&') {
- r.insert (make_pair (k, v));
- k.clear ();
- state = KEY;
- } else {
- v += url[i];
- }
- break;
- }
- }
-
- if (state == VALUE) {
- r.insert (make_pair (k, v));
- }
-
- return r;
-}
string
video_asset_filename (shared_ptr<dcp::PictureAsset> asset, int reel_index, int reel_count, optional<string> summary)
{
- dcp::NameFormat::Map values;
- values['t'] = "j2c";
- values['r'] = raw_convert<string> (reel_index + 1);
- values['n'] = raw_convert<string> (reel_count);
- if (summary) {
- values['c'] = careful_string_filter (summary.get());
- }
- return Config::instance()->dcp_asset_filename_format().get(values, "_" + asset->id() + ".mxf");
+ return asset_filename(asset, "j2c", reel_index, reel_count, summary, ".mxf");
}
+
string
audio_asset_filename (shared_ptr<dcp::SoundAsset> asset, int reel_index, int reel_count, optional<string> summary)
{
- dcp::NameFormat::Map values;
- values['t'] = "pcm";
- values['r'] = raw_convert<string> (reel_index + 1);
- values['n'] = raw_convert<string> (reel_count);
- if (summary) {
- values['c'] = careful_string_filter (summary.get());
- }
- return Config::instance()->dcp_asset_filename_format().get(values, "_" + asset->id() + ".mxf");
+ return asset_filename(asset, "pcm", reel_index, reel_count, summary, ".mxf");
}
-float
-relaxed_string_to_float (string s)
+
+string
+subtitle_asset_filename (shared_ptr<dcp::SubtitleAsset> asset, int reel_index, int reel_count, optional<string> summary, string extension)
{
- try {
- boost::algorithm::replace_all (s, ",", ".");
- return lexical_cast<float> (s);
- } catch (bad_lexical_cast) {
- boost::algorithm::replace_all (s, ".", ",");
- return lexical_cast<float> (s);
- }
+ return asset_filename(asset, "sub", reel_index, reel_count, summary, extension);
}
+
+string
+atmos_asset_filename (shared_ptr<dcp::AtmosAsset> asset, int reel_index, int reel_count, optional<string> summary)
+{
+ return asset_filename(asset, "atmos", reel_index, reel_count, summary, ".mxf");
+}
+
+
string
careful_string_filter (string s)
{
Safety first and all that.
*/
- string out;
- string const allowed = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_%.";
- for (size_t i = 0; i < s.size(); ++i) {
- if (allowed.find (s[i]) != string::npos) {
- out += s[i];
+ /* First transliterate using libicu to try to remove accents in a "nice" way */
+ auto transliterated = icu::UnicodeString::fromUTF8(icu::StringPiece(s));
+ auto status = U_ZERO_ERROR;
+ auto transliterator = icu::Transliterator::createInstance("NFD; [:M:] Remove; NFC", UTRANS_FORWARD, status);
+ transliterator->transliterate(transliterated);
+
+ /* Some things are missed by ICU's transliterator */
+ std::map<wchar_t, wchar_t> replacements = {
+ { L'ł', L'l' },
+ { L'Ł', L'L' }
+ };
+
+ icu::UnicodeString transliterated_more;
+ for (int i = 0; i < transliterated.length(); ++i) {
+ auto replacement = replacements.find(transliterated[i]);
+ if (replacement != replacements.end()) {
+ transliterated_more += replacement->second;
+ } else {
+ transliterated_more += transliterated[i];
}
}
- return out;
+ /* Then remove anything that's not in a very limited character set */
+ wstring out;
+ wstring const allowed = L"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_%.+";
+ for (int i = 0; i < transliterated_more.length(); ++i) {
+ wchar_t c = transliterated_more[i];
+ if (allowed.find(c) != string::npos) {
+ out += c;
+ }
+ }
+
+ return boost::locale::conv::utf_to_utf<char>(out);
}
/** @param mapped List of mapped audio channels from a Film.
* @param channels Total number of channels in the Film.
- * @return First: number of non-LFE channels, second: number of LFE channels.
+ * @return First: number of non-LFE soundtrack channels (L/R/C/Ls/Rs/Lc/Rc/Bsl/Bsr), second: number of LFE channels.
*/
pair<int, int>
audio_channel_types (list<int> mapped, int channels)
int non_lfe = 0;
int lfe = 0;
- BOOST_FOREACH (int i, mapped) {
+ for (auto i: mapped) {
if (i >= channels) {
/* This channel is mapped but is not included in the DCP */
continue;
}
- if (static_cast<dcp::Channel> (i) == dcp::LFE) {
+ switch (static_cast<dcp::Channel>(i)) {
+ case dcp::Channel::LFE:
++lfe;
- } else {
+ break;
+ case dcp::Channel::LEFT:
+ case dcp::Channel::RIGHT:
+ case dcp::Channel::CENTRE:
+ case dcp::Channel::LS:
+ case dcp::Channel::RS:
+ case dcp::Channel::BSL:
+ case dcp::Channel::BSR:
++non_lfe;
+ break;
+ case dcp::Channel::HI:
+ case dcp::Channel::VI:
+ case dcp::Channel::MOTION_DATA:
+ case dcp::Channel::SYNC_SIGNAL:
+ case dcp::Channel::SIGN_LANGUAGE:
+ case dcp::Channel::CHANNEL_COUNT:
+ break;
}
}
return make_pair (non_lfe, lfe);
}
+
+shared_ptr<AudioBuffers>
+remap (shared_ptr<const AudioBuffers> input, int output_channels, AudioMapping map)
+{
+ auto mapped = make_shared<AudioBuffers>(output_channels, input->frames());
+ mapped->make_silent ();
+
+ int to_do = min (map.input_channels(), input->channels());
+
+ for (int i = 0; i < to_do; ++i) {
+ for (int j = 0; j < mapped->channels(); ++j) {
+ if (map.get(i, j) > 0) {
+ mapped->accumulate_channel(
+ input.get(),
+ i,
+ j,
+ map.get(i, j)
+ );
+ }
+ }
+ }
+
+ return mapped;
+}
+
+Eyes
+increment_eyes (Eyes e)
+{
+ if (e == Eyes::LEFT) {
+ return Eyes::RIGHT;
+ }
+
+ return Eyes::LEFT;
+}
+
+
+size_t
+utf8_strlen (string s)
+{
+ size_t const len = s.length ();
+ int N = 0;
+ for (size_t i = 0; i < len; ++i) {
+ unsigned char c = s[i];
+ if ((c & 0xe0) == 0xc0) {
+ ++i;
+ } else if ((c & 0xf0) == 0xe0) {
+ i += 2;
+ } else if ((c & 0xf8) == 0xf0) {
+ i += 3;
+ }
+ ++N;
+ }
+ return N;
+}
+
+
+/** @param size Size of picture that the subtitle will be overlaid onto */
+void
+emit_subtitle_image (ContentTimePeriod period, dcp::SubtitleImage sub, dcp::Size size, shared_ptr<TextDecoder> decoder)
+{
+ /* XXX: this is rather inefficient; decoding the image just to get its size */
+ FFmpegImageProxy proxy (sub.png_image());
+ auto image = proxy.image(Image::Alignment::PADDED).image;
+ /* set up rect with height and width */
+ dcpomatic::Rect<double> rect(0, 0, image->size().width / double(size.width), image->size().height / double(size.height));
+
+ /* add in position */
+
+ switch (sub.h_align()) {
+ case dcp::HAlign::LEFT:
+ rect.x += sub.h_position();
+ break;
+ case dcp::HAlign::CENTER:
+ rect.x += 0.5 + sub.h_position() - rect.width / 2;
+ break;
+ case dcp::HAlign::RIGHT:
+ rect.x += 1 - sub.h_position() - rect.width;
+ break;
+ }
+
+ switch (sub.v_align()) {
+ case dcp::VAlign::TOP:
+ rect.y += sub.v_position();
+ break;
+ case dcp::VAlign::CENTER:
+ rect.y += 0.5 + sub.v_position() - rect.height / 2;
+ break;
+ case dcp::VAlign::BOTTOM:
+ rect.y += 1 - sub.v_position() - rect.height;
+ break;
+ }
+
+ decoder->emit_bitmap (period, image, rect);
+}
+
+
+/** XXX: could use mmap? */
+void
+copy_in_bits (boost::filesystem::path from, boost::filesystem::path to, std::function<void (float)> progress)
+{
+ dcp::File f(from, "rb");
+ if (!f) {
+ throw OpenFileError (from, errno, OpenFileError::READ);
+ }
+ dcp::File t(to, "wb");
+ if (!t) {
+ throw OpenFileError (to, errno, OpenFileError::WRITE);
+ }
+
+ /* on the order of a second's worth of copying */
+ boost::uintmax_t const chunk = 20 * 1024 * 1024;
+
+ std::vector<uint8_t> buffer(chunk);
+
+ boost::uintmax_t const total = boost::filesystem::file_size (from);
+ boost::uintmax_t remaining = total;
+
+ while (remaining) {
+ boost::uintmax_t this_time = min (chunk, remaining);
+ size_t N = f.read(buffer.data(), 1, chunk);
+ if (N < this_time) {
+ throw ReadFileError (from, errno);
+ }
+
+ N = t.write(buffer.data(), 1, this_time);
+ if (N < this_time) {
+ throw WriteFileError (to, errno);
+ }
+
+ progress (1 - float(remaining) / total);
+ remaining -= this_time;
+ }
+}
+
+
+dcp::Size
+scale_for_display (dcp::Size s, dcp::Size display_container, dcp::Size film_container, PixelQuanta quanta)
+{
+ /* Now scale it down if the display container is smaller than the film container */
+ if (display_container != film_container) {
+ float const scale = min (
+ float (display_container.width) / film_container.width,
+ float (display_container.height) / film_container.height
+ );
+
+ s.width = lrintf (s.width * scale);
+ s.height = lrintf (s.height * scale);
+ s = quanta.round (s);
+ }
+
+ return s;
+}
+
+
+dcp::DecryptedKDM
+decrypt_kdm_with_helpful_error (dcp::EncryptedKDM kdm)
+{
+ try {
+ return dcp::DecryptedKDM (kdm, Config::instance()->decryption_chain()->key().get());
+ } catch (dcp::KDMDecryptionError& e) {
+ /* Try to flesh out the error a bit */
+ auto const kdm_subject_name = kdm.recipient_x509_subject_name();
+ bool on_chain = false;
+ auto dc = Config::instance()->decryption_chain();
+ for (auto i: dc->root_to_leaf()) {
+ if (i.subject() == kdm_subject_name) {
+ on_chain = true;
+ }
+ }
+ if (!on_chain) {
+ throw KDMError (_("This KDM was not made for DCP-o-matic's decryption certificate."), e.what());
+ } else if (kdm_subject_name != dc->leaf().subject()) {
+ throw KDMError (_("This KDM was made for DCP-o-matic but not for its leaf certificate."), e.what());
+ } else {
+ throw;
+ }
+ }
+}
+
+
+boost::filesystem::path
+default_font_file ()
+{
+ boost::filesystem::path liberation_normal;
+ try {
+ liberation_normal = resources_path() / "LiberationSans-Regular.ttf";
+ if (!boost::filesystem::exists (liberation_normal)) {
+ /* Hack for unit tests */
+ liberation_normal = resources_path() / "fonts" / "LiberationSans-Regular.ttf";
+ }
+ } catch (boost::filesystem::filesystem_error& e) {
+
+ }
+
+ if (!boost::filesystem::exists(liberation_normal)) {
+ liberation_normal = "/usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf";
+ }
+ if (!boost::filesystem::exists(liberation_normal)) {
+ liberation_normal = "/usr/share/fonts/liberation-sans/LiberationSans-Regular.ttf";
+ }
+
+ return liberation_normal;
+}
+
+
+/* Set to 1 to print the IDs of some of our threads to stdout on creation */
+#define DCPOMATIC_DEBUG_THREADS 0
+
+#if DCPOMATIC_DEBUG_THREADS
+void
+start_of_thread (string name)
+{
+ std::cout << "THREAD:" << name << ":" << std::hex << pthread_self() << "\n";
+}
+#else
+void
+start_of_thread (string)
+{
+
+}
+#endif
+
+
+string
+error_details(boost::system::error_code ec)
+{
+ return String::compose("%1:%2:%3", ec.category().name(), ec.value(), ec.message());
+}
+
+
+bool
+contains_assetmap(boost::filesystem::path dir)
+{
+ return boost::filesystem::is_regular_file(dir / "ASSETMAP") || boost::filesystem::is_regular_file(dir / "ASSETMAP.xml");
+}
+
+
+string
+word_wrap(string input, int columns)
+{
+ icu::Locale locale;
+ UErrorCode status = U_ZERO_ERROR;
+ auto iter = icu::BreakIterator::createLineInstance(locale, status);
+ ScopeGuard sg = [iter]() { delete iter; };
+ if (U_FAILURE(status)) {
+ return input;
+ }
+
+ auto input_icu = icu::UnicodeString::fromUTF8(icu::StringPiece(input));
+ iter->setText(input_icu);
+
+ int position = 0;
+ string output;
+ while (position < input_icu.length()) {
+ int end_of_line = iter->preceding(position + columns + 1);
+ icu::UnicodeString line;
+ if (end_of_line <= position) {
+ /* There's no good line-break position; just break in the middle of a word */
+ line = input_icu.tempSubString(position, columns);
+ position += columns;
+ } else {
+ line = input_icu.tempSubString(position, end_of_line - position);
+ position = end_of_line;
+ }
+ line.toUTF8String(output);
+ output += "\n";
+ }
+
+ return output;
+}
+