/*
- Copyright (C) 2016-2019 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2016-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
*/
-#include "hints.h"
-#include "types.h"
-#include "film.h"
-#include "content.h"
-#include "video_content.h"
-#include "text_content.h"
-#include "audio_processor.h"
-#include "font.h"
-#include "ratio.h"
+
#include "audio_analysis.h"
+#include "audio_content.h"
+#include "audio_processor.h"
#include "compose.hpp"
-#include "util.h"
+#include "content.h"
#include "cross.h"
+#include "dcp_content_type.h"
+#include "film.h"
+#include "font.h"
+#include "font_data.h"
+#include "hints.h"
#include "player.h"
+#include "ratio.h"
+#include "text_content.h"
+#include "types.h"
+#include "util.h"
+#include "video_content.h"
+#include "writer.h"
+#include <dcp/cpl.h>
#include <dcp/raw_convert.h>
-#include <boost/foreach.hpp>
+#include <dcp/reel.h>
+#include <dcp/reel_closed_caption_asset.h>
+#include <dcp/reel_subtitle_asset.h>
#include <boost/algorithm/string.hpp>
#include <iostream>
#include "i18n.h"
-using std::vector;
-using std::string;
-using std::pair;
-using std::min;
-using std::max;
+
using std::cout;
-using boost::shared_ptr;
-using boost::weak_ptr;
+using std::make_shared;
+using std::max;
+using std::min;
+using std::pair;
+using std::shared_ptr;
+using std::string;
+using std::vector;
+using std::weak_ptr;
using boost::optional;
using boost::bind;
using namespace dcpomatic;
+#if BOOST_VERSION >= 106100
+using namespace boost::placeholders;
+#endif
+
+
+/* When checking to see if things are too big, we'll say they are if they
+ * are more than the target size minus this "slack."
+ */
+#define SIZE_SLACK 4096
+
+
+/* When writing hints:
+ * - put quotation marks around the name of a GUI tab that you are referring to (e.g. "DCP" or "DCP→Video" tab)
+ */
+
-Hints::Hints (weak_ptr<const Film> film)
- : _film (film)
- , _long_ccap (false)
- , _overlap_ccap (false)
- , _too_many_ccap_lines (false)
+Hints::Hints (weak_ptr<const Film> weak_film)
+ : WeakConstFilm (weak_film)
+ , _writer (new Writer(weak_film, weak_ptr<Job>(), true))
+ , _analyser (film(), film()->playlist(), true, [](float) {})
, _stop (false)
{
}
+
void
Hints::start ()
{
_thread = boost::thread (bind(&Hints::thread, this));
}
+
Hints::~Hints ()
{
boost::this_thread::disable_interruption dis;
} catch (...) {}
}
+
void
-Hints::thread ()
+Hints::check_few_audio_channels ()
{
- shared_ptr<const Film> film = _film.lock ();
- if (!film) {
- return;
- }
-
- ContentList content = film->content ();
-
- bool big_font_files = false;
- if (film->interop ()) {
- BOOST_FOREACH (shared_ptr<Content> i, content) {
- BOOST_FOREACH (shared_ptr<TextContent> j, i->text) {
- BOOST_FOREACH (shared_ptr<Font> k, j->fonts()) {
- optional<boost::filesystem::path> const p = k->file ();
- if (p && boost::filesystem::file_size(p.get()) >= (640 * 1024)) {
- big_font_files = true;
- }
- }
- }
- }
- }
-
- if (big_font_files) {
- hint (_("You have specified a font file which is larger than 640kB. This is very likely to cause problems on playback."));
- }
-
- if (film->audio_channels() < 6) {
+ if (film()->audio_channels() < 6) {
hint (_("Your DCP has fewer than 6 audio channels. This may cause problems on some projectors. You may want to set the DCP to have 6 channels. It does not matter if your content has fewer channels, as DCP-o-matic will fill the extras with silence."));
}
+}
+
- AudioProcessor const * ap = film->audio_processor();
+void
+Hints::check_upmixers ()
+{
+ auto ap = film()->audio_processor();
if (ap && (ap->id() == "stereo-5.1-upmix-a" || ap->id() == "stereo-5.1-upmix-b")) {
hint (_("You are using DCP-o-matic's stereo-to-5.1 upmixer. This is experimental and may result in poor-quality audio. If you continue, you should listen to the resulting DCP in a cinema to make sure that it sounds good."));
}
+}
+
+void
+Hints::check_incorrect_container ()
+{
int narrower_than_scope = 0;
int scope = 0;
- BOOST_FOREACH (shared_ptr<const Content> i, content) {
+ for (auto i: film()->content()) {
if (i->video) {
- Ratio const * r = Ratio::nearest_from_ratio(i->video->scaled_size(film->frame_size()).ratio());
+ auto const r = Ratio::nearest_from_ratio(i->video->scaled_size(film()->frame_size()).ratio());
if (r && r->id() == "239") {
++scope;
} else if (r && r->id() != "239" && r->id() != "235" && r->id() != "190") {
}
}
- string const film_container = film->container()->id();
+ string const film_container = film()->container()->id();
if (scope && !narrower_than_scope && film_container == "185") {
hint (_("All of your content is in Scope (2.39:1) but your DCP's container is Flat (1.85:1). This will letter-box your content inside a Flat (1.85:1) frame. You may prefer to set your DCP's container to Scope (2.39:1) in the \"DCP\" tab."));
if (!scope && narrower_than_scope && film_container == "239") {
hint (_("All of your content narrower than 1.90:1 but your DCP's container is Scope (2.39:1). This will pillar-box your content. You may prefer to set your DCP's container to have the same ratio as your content."));
}
+}
+
- if (film_container != "185" && film_container != "239" && film_container != "190") {
- hint (_("Your DCP uses an unusual container ratio. This may cause problems on some projectors. If possible, use Flat or Scope for the DCP container ratio"));
+void
+Hints::check_unusual_container ()
+{
+ auto const film_container = film()->container()->id();
+ if (film_container != "185" && film_container != "239") {
+ hint (_("Your DCP uses an unusual container ratio. This may cause problems on some projectors. If possible, use Flat or Scope for the DCP container ratio."));
}
+}
+
- if (film->j2k_bandwidth() >= 245000000) {
+void
+Hints::check_high_j2k_bandwidth ()
+{
+ if (film()->j2k_bandwidth() >= 245000000) {
hint (_("A few projectors have problems playing back very high bit-rate DCPs. It is a good idea to drop the JPEG2000 bandwidth down to about 200Mbit/s; this is unlikely to have any visible effect on the image."));
}
+}
- switch (film->video_frame_rate()) {
+
+void
+Hints::check_frame_rate ()
+{
+ auto f = film ();
+ switch (f->video_frame_rate()) {
case 24:
/* Fine */
break;
{
/* You might want to go to 24 */
string base = String::compose(_("You are set up for a DCP at a frame rate of %1 fps. This frame rate is not supported by all projectors. You may want to consider changing your frame rate to %2 fps."), 25, 24);
- if (film->interop()) {
+ if (f->interop()) {
base += " ";
base += _("If you do use 25fps you should change your DCP standard to SMPTE.");
}
case 50:
case 60:
/* You almost certainly want to go to half frame rate */
- hint (String::compose(_("You are set up for a DCP at a frame rate of %1 fps. This frame rate is not supported by all projectors. You are advised to change the DCP frame rate to %2 fps."), film->video_frame_rate(), film->video_frame_rate() / 2));
+ hint (String::compose(_("You are set up for a DCP at a frame rate of %1 fps. This frame rate is not supported by all projectors. You are advised to change the DCP frame rate to %2 fps."), f->video_frame_rate(), f->video_frame_rate() / 2));
break;
}
+}
+
+
+void
+Hints::check_4k_3d ()
+{
+ auto f = film();
+ if (f->resolution() == Resolution::FOUR_K && f->three_d()) {
+ hint (_("4K 3D is only supported by a very limited number of projectors. Unless you know that you will play this DCP back on a capable projector, it is advisable to set the DCP to be 2K in the \"DCP→Video\" tab."));
+ }
+}
+
+void
+Hints::check_speed_up ()
+{
optional<double> lowest_speed_up;
optional<double> highest_speed_up;
- BOOST_FOREACH (shared_ptr<const Content> i, content) {
- double spu = film->active_frame_rate_change(i->position()).speed_up;
+ for (auto i: film()->content()) {
+ double spu = film()->active_frame_rate_change(i->position()).speed_up;
if (!lowest_speed_up || spu < *lowest_speed_up) {
lowest_speed_up = spu;
}
hint (_("There is a large difference between the frame rate of your DCP and that of some of your content. This will cause your audio to play back at a much lower or higher pitch than it should. You are advised to set your DCP frame rate to one closer to your content, provided that your target projection systems support your chosen DCP rate."));
}
+}
+
+
+void
+Hints::check_interop ()
+{
+ if (film()->interop()) {
+ hint (_("In general it is now advisable to make SMPTE DCPs unless you have a particular reason to use Interop. You are advised to set your DCP to use the SMPTE standard in the \"DCP\" tab."));
+ }
+}
+
+
+void
+Hints::check_big_font_files ()
+{
+ bool big_font_files = false;
+ if (film()->interop ()) {
+ for (auto i: film()->content()) {
+ for (auto j: i->text) {
+ for (auto k: j->fonts()) {
+ auto const p = k->file ();
+ if (p && boost::filesystem::file_size(p.get()) >= (MAX_FONT_FILE_SIZE - SIZE_SLACK)) {
+ big_font_files = true;
+ }
+ }
+ }
+ }
+ }
+
+ if (big_font_files) {
+ hint (_("You have specified a font file which is larger than 640kB. This is very likely to cause problems on playback."));
+ }
+}
+
+
+void
+Hints::check_vob ()
+{
int vob = 0;
- BOOST_FOREACH (shared_ptr<const Content> i, content) {
- if (boost::algorithm::starts_with (i->path(0).filename().string(), "VTS_")) {
+ for (auto i: film()->content()) {
+ if (boost::algorithm::starts_with(i->path(0).filename().string(), "VTS_")) {
++vob;
}
}
if (vob > 1) {
hint (String::compose (_("You have %1 files that look like they are VOB files from DVD. You should join them to ensure smooth joins between the files."), vob));
}
+}
+
+void
+Hints::check_3d_in_2d ()
+{
int three_d = 0;
- BOOST_FOREACH (shared_ptr<const Content> i, content) {
- if (i->video && i->video->frame_type() != VIDEO_FRAME_TYPE_2D) {
+ for (auto i: film()->content()) {
+ if (i->video && i->video->frame_type() != VideoFrameType::TWO_D) {
++three_d;
}
}
- if (three_d > 0 && !film->three_d()) {
+ if (three_d > 0 && !film()->three_d()) {
hint (_("You are using 3D content but your DCP is set to 2D. Set the DCP to 3D if you want to play it back on a 3D system (e.g. Real-D, MasterImage etc.)"));
}
+}
- boost::filesystem::path path = film->audio_analysis_path (film->playlist ());
- if (boost::filesystem::exists (path)) {
- try {
- shared_ptr<AudioAnalysis> an (new AudioAnalysis (path));
- string ch;
+/** @return true if the loudness could be checked, false if it could not because no analysis was available */
+bool
+Hints::check_loudness ()
+{
+ auto path = film()->audio_analysis_path(film()->playlist());
+ if (!boost::filesystem::exists(path)) {
+ return false;
+ }
- vector<AudioAnalysis::PeakTime> sample_peak = an->sample_peak ();
- vector<float> true_peak = an->true_peak ();
+ try {
+ auto an = make_shared<AudioAnalysis>(path);
- for (size_t i = 0; i < sample_peak.size(); ++i) {
- float const peak = max (sample_peak[i].peak, true_peak.empty() ? 0 : true_peak[i]);
- float const peak_dB = linear_to_db(peak) + an->gain_correction(film->playlist());
- if (peak_dB > -3) {
- ch += dcp::raw_convert<string> (short_audio_channel_name (i)) + ", ";
- }
- }
+ string ch;
- ch = ch.substr (0, ch.length() - 2);
+ auto sample_peak = an->sample_peak ();
+ auto true_peak = an->true_peak ();
- if (!ch.empty ()) {
- hint (String::compose (
- _("Your audio level is very high (on %1). You should reduce the gain of your audio content."),
- ch
- )
- );
+ for (size_t i = 0; i < sample_peak.size(); ++i) {
+ float const peak = max (sample_peak[i].peak, true_peak.empty() ? 0 : true_peak[i]);
+ float const peak_dB = linear_to_db(peak) + an->gain_correction(film()->playlist());
+ if (peak_dB > -3) {
+ ch += dcp::raw_convert<string>(short_audio_channel_name(i)) + ", ";
}
- } catch (OldFormatError& e) {
- /* The audio analysis is too old to load in; just skip this hint as if
- it had never been run.
- */
}
+
+ ch = ch.substr (0, ch.length() - 2);
+
+ if (!ch.empty()) {
+ hint(String::compose(
+ _("Your audio level is very high (on %1). You should reduce the gain of your audio content."),
+ ch
+ )
+ );
+ }
+ } catch (OldFormatError& e) {
+ /* The audio analysis is too old to load in */
+ return false;
+ }
+
+ return true;
+}
+
+
+static
+bool
+subtitle_mxf_too_big (shared_ptr<dcp::SubtitleAsset> asset)
+{
+ return asset && asset->file() && boost::filesystem::file_size(*asset->file()) >= (MAX_TEXT_MXF_SIZE - SIZE_SLACK);
+}
+
+
+void
+Hints::check_out_of_range_markers ()
+{
+ auto const length = film()->length();
+ for (auto const& i: film()->markers()) {
+ if (i.second >= length) {
+ hint (_("At least one marker comes after the end of the project and will be ignored."));
+ }
+ }
+}
+
+
+void
+Hints::thread ()
+try
+{
+ start_of_thread ("Hints");
+
+ auto film = _film.lock ();
+ if (!film) {
+ return;
}
- emit (bind(boost::ref(Progress), _("Examining closed captions")));
+ auto content = film->content ();
+
+ check_interop ();
+ check_big_font_files ();
+ check_few_audio_channels ();
+ check_upmixers ();
+ check_incorrect_container ();
+ check_unusual_container ();
+ check_high_j2k_bandwidth ();
+ check_frame_rate ();
+ check_4k_3d ();
+ check_speed_up ();
+ check_vob ();
+ check_3d_in_2d ();
+ auto const check_loudness_done = check_loudness ();
+ check_ffec_and_ffmc_in_smpte_feature ();
+ check_out_of_range_markers ();
+ check_text_languages ();
+ check_audio_language ();
+
+ if (check_loudness_done) {
+ emit (bind(boost::ref(Progress), _("Examining subtitles and closed captions")));
+ } else {
+ emit (bind(boost::ref(Progress), _("Examining audio, subtitles and closed captions")));
+ }
- shared_ptr<Player> player (new Player(film));
+ auto player = make_shared<Player>(film);
player->set_ignore_video ();
- player->set_ignore_audio ();
- player->Text.connect (bind(&Hints::text, this, _1, _2, _4));
+ if (check_loudness_done) {
+ /* We don't need to analyse audio because we already loaded a suitable analysis */
+ player->set_ignore_audio ();
+ }
+ player->Audio.connect (bind(&Hints::audio, this, _1, _2));
+ player->Text.connect (bind(&Hints::text, this, _1, _2, _3, _4));
struct timeval last_pulse;
gettimeofday (&last_pulse, 0);
- try {
- while (!player->pass()) {
+ while (!player->pass()) {
- struct timeval now;
- gettimeofday (&now, 0);
- if ((seconds(now) - seconds(last_pulse)) > 1) {
- if (_stop) {
- break;
- }
- emit (bind (boost::ref(Pulse)));
- last_pulse = now;
+ struct timeval now;
+ gettimeofday (&now, 0);
+ if ((seconds(now) - seconds(last_pulse)) > 1) {
+ if (_stop) {
+ return;
}
+ emit (bind (boost::ref(Pulse)));
+ last_pulse = now;
}
- } catch (...) {
- store_current ();
}
+ if (!check_loudness_done) {
+ _analyser.finish ();
+ _analyser.get().write(film->audio_analysis_path(film->playlist()));
+ check_loudness ();
+ }
+
+ _writer->write (player->get_subtitle_fonts());
+
+ if (_long_subtitle && !_very_long_subtitle) {
+ hint (_("At least one of your subtitle lines has more than 52 characters. It is recommended to make each line 52 characters at most in length."));
+ } else if (_very_long_subtitle) {
+ hint (_("At least one of your subtitle lines has more than 79 characters. You should make each line 79 characters at most in length."));
+ }
+
+ bool ccap_xml_too_big = false;
+ bool ccap_mxf_too_big = false;
+ bool subs_mxf_too_big = false;
+
+ auto dcp_dir = film->dir("hints") / dcpomatic::get_process_id();
+ boost::filesystem::remove_all (dcp_dir);
+
+ _writer->finish (film->dir("hints") / dcpomatic::get_process_id());
+
+ dcp::DCP dcp (dcp_dir);
+ dcp.read ();
+ DCPOMATIC_ASSERT (dcp.cpls().size() == 1);
+ for (auto reel: dcp.cpls()[0]->reels()) {
+ for (auto ccap: reel->closed_captions()) {
+ if (ccap->asset() && ccap->asset()->xml_as_string().length() > static_cast<size_t>(MAX_CLOSED_CAPTION_XML_SIZE - SIZE_SLACK) && !ccap_xml_too_big) {
+ hint (_(
+ "At least one of your closed caption files' XML part is larger than " MAX_CLOSED_CAPTION_XML_SIZE_TEXT
+ ". You should divide the DCP into shorter reels."
+ ));
+ ccap_xml_too_big = true;
+ }
+ if (subtitle_mxf_too_big(ccap->asset()) && !ccap_mxf_too_big) {
+ hint (_(
+ "At least one of your closed caption files is larger than " MAX_TEXT_MXF_SIZE_TEXT
+ " in total. You should divide the DCP into shorter reels."
+ ));
+ ccap_mxf_too_big = true;
+ }
+ }
+ if (reel->main_subtitle() && subtitle_mxf_too_big(reel->main_subtitle()->asset()) && !subs_mxf_too_big) {
+ hint (_(
+ "At least one of your subtitle files is larger than " MAX_TEXT_MXF_SIZE_TEXT " in total. "
+ "You should divide the DCP into shorter reels."
+ ));
+ subs_mxf_too_big = true;
+ }
+ }
+ boost::filesystem::remove_all (dcp_dir);
+
emit (bind(boost::ref(Finished)));
}
+catch (boost::thread_interrupted)
+{
+ /* The Hints object is being destroyed before it has finished, so just give up */
+}
+catch (...)
+{
+ store_current ();
+}
+
void
Hints::hint (string h)
emit(bind(boost::ref(Hint), h));
}
+
void
-Hints::text (PlayerText text, TextType type, DCPTimePeriod period)
+Hints::audio (shared_ptr<AudioBuffers> audio, DCPTime time)
{
- if (type != TEXT_CLOSED_CAPTION) {
- return;
+ _analyser.analyse (audio, time);
+}
+
+
+void
+Hints::text (PlayerText text, TextType type, optional<DCPTextTrack> track, DCPTimePeriod period)
+{
+ _writer->write (text, type, track, period);
+
+ switch (type) {
+ case TextType::CLOSED_CAPTION:
+ closed_caption (text, period);
+ break;
+ case TextType::OPEN_SUBTITLE:
+ open_subtitle (text, period);
+ break;
+ default:
+ break;
}
+}
+
+void
+Hints::closed_caption (PlayerText text, DCPTimePeriod period)
+{
int lines = text.string.size();
- BOOST_FOREACH (StringText i, text.string) {
- if (utf8_strlen(i.text()) > CLOSED_CAPTION_LENGTH) {
+ for (auto i: text.string) {
+ if (utf8_strlen(i.text()) > MAX_CLOSED_CAPTION_LENGTH) {
++lines;
if (!_long_ccap) {
_long_ccap = true;
- hint (String::compose(_("Some of your closed captions have lines longer than %1 characters, so they will probably be word-wrapped."), CLOSED_CAPTION_LENGTH));
+ hint (
+ String::compose(
+ "At least one of your closed caption lines has more than %1 characters. "
+ "It is advisable to make each line %1 characters at most in length.",
+ MAX_CLOSED_CAPTION_LENGTH,
+ MAX_CLOSED_CAPTION_LENGTH)
+ );
}
}
}
- if (!_too_many_ccap_lines && lines > CLOSED_CAPTION_LINES) {
- hint (String::compose(_("Some of your closed captions span more than %1 lines, so they will be truncated."), CLOSED_CAPTION_LINES));
+ if (!_too_many_ccap_lines && lines > MAX_CLOSED_CAPTION_LINES) {
+ hint (String::compose(_("Some of your closed captions span more than %1 lines, so they will be truncated."), MAX_CLOSED_CAPTION_LINES));
_too_many_ccap_lines = true;
}
- shared_ptr<const Film> film = _film.lock ();
- DCPOMATIC_ASSERT (film);
-
/* XXX: maybe overlapping closed captions (i.e. different languages) are OK with Interop? */
- if (film->interop() && !_overlap_ccap && _last && _last->overlap(period)) {
+ if (film()->interop() && !_overlap_ccap && _last_ccap && _last_ccap->overlap(period)) {
_overlap_ccap = true;
hint (_("You have overlapping closed captions, which are not allowed in Interop DCPs. Change your DCP standard to SMPTE."));
}
- _last = period;
+ _last_ccap = period;
+}
+
+
+void
+Hints::open_subtitle (PlayerText text, DCPTimePeriod period)
+{
+ if (period.from < DCPTime::from_seconds(4) && !_early_subtitle) {
+ _early_subtitle = true;
+ hint (_("It is advisable to put your first subtitle at least 4 seconds after the start of the DCP to make sure it is seen."));
+ }
+
+ int const vfr = film()->video_frame_rate ();
+
+ if (period.duration().frames_round(vfr) < 15 && !_short_subtitle) {
+ _short_subtitle = true;
+ hint (_("At least one of your subtitles lasts less than 15 frames. It is advisable to make each subtitle at least 15 frames long."));
+ }
+
+ if (_last_subtitle && DCPTime(period.from - _last_subtitle->to).frames_round(vfr) < 2 && !_subtitles_too_close) {
+ _subtitles_too_close = true;
+ hint (_("At least one of your subtitles starts less than 2 frames after the previous one. It is advisable to make the gap between subtitles at least 2 frames."));
+ }
+
+ if (text.string.size() > 3 && !_too_many_subtitle_lines) {
+ _too_many_subtitle_lines = true;
+ hint (_("At least one of your subtitles has more than 3 lines. It is advisable to use no more than 3 lines."));
+ }
+
+ size_t longest_line = 0;
+ for (auto const& i: text.string) {
+ longest_line = max (longest_line, i.text().length());
+ }
+
+ if (longest_line > 52) {
+ _long_subtitle = true;
+ }
+
+ if (longest_line > 79) {
+ _very_long_subtitle = true;
+ }
+
+ _last_subtitle = period;
}
+
+
+void
+Hints::check_ffec_and_ffmc_in_smpte_feature ()
+{
+ auto f = film();
+ if (!f->interop() && f->dcp_content_type()->libdcp_kind() == dcp::ContentKind::FEATURE && (!f->marker(dcp::Marker::FFEC) || !f->marker(dcp::Marker::FFMC))) {
+ hint (_("SMPTE DCPs with the type FTR (feature) should have markers for the first frame of end credits (FFEC) and the first frame of moving credits (FFMC). You should add these markers using the 'Markers' button in the \"DCP\" tab."));
+ }
+}
+
+
+void
+Hints::join ()
+{
+ _thread.join ();
+}
+
+
+void
+Hints::check_text_languages ()
+{
+ for (auto i: film()->content()) {
+ for (auto j: i->text) {
+ if (j->use() && !j->language()) {
+ hint (_("At least one piece of subtitle or closed caption content has no specified language. "
+ "It is advisable to set the language for each piece of subtitle or closed caption content "
+ "in the \"Content→Timed text\", \"Content→Open subtitles\" or \"Content→Closed captions\" tab."));
+ return;
+ }
+ }
+ }
+}
+
+
+void
+Hints::check_audio_language ()
+{
+ auto content = film()->content();
+ auto mapped_audio =
+ std::find_if(content.begin(), content.end(), [](shared_ptr<const Content> c) {
+ return c->audio && !c->audio->mapping().mapped_output_channels().empty();
+ });
+
+ if (mapped_audio != content.end() && !film()->audio_language()) {
+ hint (_("Some of your content has audio but you have not set the audio language. It is advisable to set the audio language "
+ "in the \"DCP\" tab unless your audio has no spoken parts."));
+ }
+}
+
projects / dcpomatic.git / blobdiff