X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fdcp_examiner.cc;h=219c3ee6ed66e993afd40bcd86922db01575580d;hb=9a97c1b4116d7fb80e8ab145c0cc738dbf14d617;hp=d0c3d1021eb1e5f4ee4f9ff95af596c4c32aa795;hpb=cb6729aa79b555b219974207fbe2ff0510f9d3ea;p=dcpomatic.git

diff --git a/src/lib/dcp_examiner.cc b/src/lib/dcp_examiner.cc
index d0c3d1021..219c3ee6e 100644
--- a/src/lib/dcp_examiner.cc
+++ b/src/lib/dcp_examiner.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2014-2020 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2014-2021 Carl Hetherington <cth@carlh.net>
 
     This file is part of DCP-o-matic.
 
@@ -18,8 +18,10 @@
 
 */
 
+
 #include "dcp_examiner.h"
 #include "dcp_content.h"
+#include "dcpomatic_log.h"
 #include "exceptions.h"
 #include "image.h"
 #include "config.h"
@@ -48,29 +50,20 @@
 
 #include "i18n.h"
 
-using std::list;
+
 using std::cout;
-using std::runtime_error;
-using std::map;
-using std::shared_ptr;
 using std::dynamic_pointer_cast;
+using std::shared_ptr;
+using std::string;
+using boost::optional;
+
 
 DCPExaminer::DCPExaminer (shared_ptr<const DCPContent> content, bool tolerant)
 	: DCP (content, tolerant)
-	, _video_length (0)
-	, _audio_length (0)
-	, _has_video (false)
-	, _has_audio (false)
-	, _encrypted (false)
-	, _needs_assets (false)
-	, _kdm_valid (false)
-	, _three_d (false)
-	, _has_atmos (false)
-	, _atmos_length (0)
 {
 	shared_ptr<dcp::CPL> cpl;
 
-	for (int i = 0; i < TEXT_COUNT; ++i) {
+	for (int i = 0; i < static_cast<int>(TextType::COUNT); ++i) {
 		_text_count[i] = 0;
 	}
 
@@ -118,16 +111,33 @@ DCPExaminer::DCPExaminer (shared_ptr<const DCPContent> content, bool tolerant)
 	_name = cpl->content_title_text ();
 	_content_kind = cpl->content_kind ();
 
+	LOG_GENERAL ("Selected CPL %1", _cpl);
+
+	auto try_to_parse_language = [](optional<string> lang) -> boost::optional<dcp::LanguageTag> {
+		try {
+			if (lang) {
+				return dcp::LanguageTag (*lang);
+			}
+		} catch (...) {}
+		return boost::none;
+	};
+
+	LOG_GENERAL ("Looking at %1 reels", cpl->reels().size());
+
 	for (auto i: cpl->reels()) {
+		LOG_GENERAL ("Reel %1", i->id());
 
 		if (i->main_picture ()) {
 			if (!i->main_picture()->asset_ref().resolved()) {
 				/* We are missing this asset so we can't continue; examination will be repeated later */
 				_needs_assets = true;
+				LOG_GENERAL ("Main picture %1 of reel %2 is missing", i->main_picture()->id(), i->id());
 				return;
 			}
 
-			dcp::Fraction const frac = i->main_picture()->edit_rate ();
+			LOG_GENERAL ("Main picture %1 of reel %2 found", i->main_picture()->id(), i->id());
+
+			auto const frac = i->main_picture()->edit_rate ();
 			float const fr = float(frac.numerator) / frac.denominator;
 			if (!_video_frame_rate) {
 				_video_frame_rate = fr;
@@ -136,7 +146,7 @@ DCPExaminer::DCPExaminer (shared_ptr<const DCPContent> content, bool tolerant)
 			}
 
 			_has_video = true;
-			shared_ptr<dcp::PictureAsset> asset = i->main_picture()->asset ();
+			auto asset = i->main_picture()->asset();
 			if (!_video_size) {
 				_video_size = asset->size ();
 			} else if (_video_size.get() != asset->size ()) {
@@ -150,11 +160,14 @@ DCPExaminer::DCPExaminer (shared_ptr<const DCPContent> content, bool tolerant)
 			if (!i->main_sound()->asset_ref().resolved()) {
 				/* We are missing this asset so we can't continue; examination will be repeated later */
 				_needs_assets = true;
+				LOG_GENERAL ("Main sound %1 of reel %2 is missing", i->main_sound()->id(), i->id());
 				return;
 			}
 
+			LOG_GENERAL ("Main sound %1 of reel %2 found", i->main_sound()->id(), i->id());
+
 			_has_audio = true;
-			shared_ptr<dcp::SoundAsset> asset = i->main_sound()->asset ();
+			auto asset = i->main_sound()->asset();
 
 			if (!_audio_channels) {
 				_audio_channels = asset->channels ();
@@ -169,31 +182,39 @@ DCPExaminer::DCPExaminer (shared_ptr<const DCPContent> content, bool tolerant)
 			}
 
 			_audio_length += i->main_sound()->actual_duration();
+			_audio_language = try_to_parse_language (asset->language());
 		}
 
 		if (i->main_subtitle ()) {
 			if (!i->main_subtitle()->asset_ref().resolved()) {
 				/* We are missing this asset so we can't continue; examination will be repeated later */
 				_needs_assets = true;
+				LOG_GENERAL ("Main subtitle %1 of reel %2 is missing", i->main_subtitle()->id(), i->id());
 				return;
 			}
 
-			_text_count[TEXT_OPEN_SUBTITLE] = 1;
+			LOG_GENERAL ("Main subtitle %1 of reel %2 found", i->main_subtitle()->id(), i->id());
+
+			_text_count[static_cast<int>(TextType::OPEN_SUBTITLE)] = 1;
+			_open_subtitle_language = try_to_parse_language (i->main_subtitle()->language());
 		}
 
 		for (auto j: i->closed_captions()) {
 			if (!j->asset_ref().resolved()) {
 				/* We are missing this asset so we can't continue; examination will be repeated later */
 				_needs_assets = true;
+				LOG_GENERAL ("Closed caption %1 of reel %2 is missing", j->id(), i->id());
 				return;
 			}
 
-			_text_count[TEXT_CLOSED_CAPTION]++;
-			_dcp_text_tracks.push_back (DCPTextTrack(j->annotation_text(), j->language().get_value_or(_("Unknown"))));
+			LOG_GENERAL ("Closed caption %1 of reel %2 found", j->id(), i->id());
+
+			_text_count[static_cast<int>(TextType::CLOSED_CAPTION)]++;
+			_dcp_text_tracks.push_back (DCPTextTrack(j->annotation_text(), try_to_parse_language(j->language())));
 		}
 
 		if (i->main_markers ()) {
-			map<dcp::Marker, dcp::Time> rm = i->main_markers()->get();
+			auto rm = i->main_markers()->get();
 			_markers.insert (rm.begin(), rm.end());
 		}
 
@@ -222,30 +243,60 @@ DCPExaminer::DCPExaminer (shared_ptr<const DCPContent> content, bool tolerant)
 	_encrypted = cpl->any_encrypted ();
 	_kdm_valid = true;
 
-	/* Check that we can read the first picture, sound and subtitle frames of each reel */
+	LOG_GENERAL_NC ("Check that everything encrypted has a key");
+
+	/* Check first that anything encrypted has a key.  We must do this, as if we try to
+	 * read encrypted data with asdcplib without even offering a key it will just return
+	 * the encrypted data.  Secondly, check that we can read the first thing from each
+	 * asset in each reel.  This checks that when we do have a key it's the right one.
+	 */
 	try {
 		for (auto i: cpl->reels()) {
-			shared_ptr<dcp::PictureAsset> pic = i->main_picture()->asset ();
-			shared_ptr<dcp::MonoPictureAsset> mono = dynamic_pointer_cast<dcp::MonoPictureAsset> (pic);
-			shared_ptr<dcp::StereoPictureAsset> stereo = dynamic_pointer_cast<dcp::StereoPictureAsset> (pic);
+			LOG_GENERAL ("Reel %1", i->id());
+			auto pic = i->main_picture()->asset();
+			if (pic->encrypted() && !pic->key()) {
+				_kdm_valid = false;
+			}
+			auto mono = dynamic_pointer_cast<dcp::MonoPictureAsset>(pic);
+			auto stereo = dynamic_pointer_cast<dcp::StereoPictureAsset>(pic);
 
 			if (mono) {
-				mono->start_read()->get_frame(0)->xyz_image ();
+				auto reader = mono->start_read();
+				reader->set_check_hmac (false);
+				reader->get_frame(0)->xyz_image();
 			} else {
-				stereo->start_read()->get_frame(0)->xyz_image (dcp::EYE_LEFT);
+				auto reader = stereo->start_read();
+				reader->set_check_hmac (false);
+				reader->get_frame(0)->xyz_image(dcp::Eye::LEFT);
 			}
 
 			if (i->main_sound()) {
-				shared_ptr<dcp::SoundAsset> sound = i->main_sound()->asset ();
-				i->main_sound()->asset()->start_read()->get_frame(0);
+				auto sound = i->main_sound()->asset ();
+				if (sound->encrypted() && !sound->key()) {
+					_kdm_valid = false;
+				}
+				auto reader = i->main_sound()->asset()->start_read();
+				reader->set_check_hmac (false);
+				reader->get_frame(0);
 			}
 
 			if (i->main_subtitle()) {
-				i->main_subtitle()->asset()->subtitles ();
+				auto sub = i->main_subtitle()->asset();
+				auto mxf_sub = dynamic_pointer_cast<dcp::MXF>(sub);
+				if (mxf_sub && mxf_sub->encrypted() && !mxf_sub->key()) {
+					_kdm_valid = false;
+				}
+				sub->subtitles ();
 			}
 
 			if (i->atmos()) {
-				i->atmos()->asset()->start_read()->get_frame(0);
+				auto atmos = i->atmos()->asset();
+				if (atmos->encrypted() && !atmos->key()) {
+					_kdm_valid = false;
+				}
+				auto reader = atmos->start_read();
+				reader->set_check_hmac (false);
+				reader->get_frame(0);
 			}
 		}
 	} catch (dcp::ReadError& e) {
@@ -254,8 +305,7 @@ DCPExaminer::DCPExaminer (shared_ptr<const DCPContent> content, bool tolerant)
 		_kdm_valid = false;
 	}
 
-	DCPOMATIC_ASSERT (cpl->standard ());
-	_standard = cpl->standard().get();
+	_standard = cpl->standard();
 	_three_d = !cpl->reels().empty() && cpl->reels().front()->main_picture() &&
 		dynamic_pointer_cast<dcp::StereoPictureAsset> (cpl->reels().front()->main_picture()->asset());
 	_ratings = cpl->ratings();