X-Git-Url: https://main.carlh.net/gitweb/?p=dcpomatic.git;a=blobdiff_plain;f=src%2Flib%2Fdcp_examiner.cc;h=ffdcad1c144fd0030a70eefc6215497fecc783f2;hp=81cb98b986b4ad09236d31eb28f1b26bb34c45d9;hb=a498b8819ab431ecc2aac058b1aadb9e15d396ac;hpb=bd81f33a39c6d20e78fce0d5be3b2d487b6df344

diff --git a/src/lib/dcp_examiner.cc b/src/lib/dcp_examiner.cc
index 81cb98b98..ffdcad1c1 100644
--- a/src/lib/dcp_examiner.cc
+++ b/src/lib/dcp_examiner.cc
@@ -1,19 +1,20 @@
 /*
-    Copyright (C) 2014 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2014-2020 Carl Hetherington <cth@carlh.net>
 
-    This program is free software; you can redistribute it and/or modify
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.
 
-    This program is distributed in the hope that it will be useful,
+    DCP-o-matic is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
 
 */
 
@@ -22,6 +23,7 @@
 #include "exceptions.h"
 #include "image.h"
 #include "config.h"
+#include "util.h"
 #include <dcp/dcp.h>
 #include <dcp/decrypted_kdm.h>
 #include <dcp/cpl.h>
@@ -29,10 +31,19 @@
 #include <dcp/reel_picture_asset.h>
 #include <dcp/reel_sound_asset.h>
 #include <dcp/mono_picture_asset.h>
+#include <dcp/mono_picture_asset_reader.h>
 #include <dcp/mono_picture_frame.h>
 #include <dcp/stereo_picture_asset.h>
+#include <dcp/stereo_picture_asset_reader.h>
 #include <dcp/stereo_picture_frame.h>
 #include <dcp/sound_asset.h>
+#include <dcp/sound_asset_reader.h>
+#include <dcp/subtitle_asset.h>
+#include <dcp/reel_atmos_asset.h>
+#include <dcp/reel_subtitle_asset.h>
+#include <dcp/reel_closed_caption_asset.h>
+#include <dcp/reel_markers_asset.h>
+#include <dcp/sound_asset.h>
 #include <iostream>
 
 #include "i18n.h"
@@ -40,36 +51,85 @@
 using std::list;
 using std::cout;
 using std::runtime_error;
-using boost::shared_ptr;
-using boost::dynamic_pointer_cast;
-
-DCPExaminer::DCPExaminer (shared_ptr<const DCPContent> content)
-	: _video_length (0)
-	, _audio_length (0)
-	, _has_subtitles (false)
-	, _encrypted (false)
-	, _kdm_valid (false)
+using std::map;
+using std::shared_ptr;
+using std::string;
+using std::dynamic_pointer_cast;
+using boost::optional;
+
+
+DCPExaminer::DCPExaminer (shared_ptr<const DCPContent> content, bool tolerant)
+	: DCP (content, tolerant)
 {
-	dcp::DCP dcp (content->directory ());
-	dcp.read (false, 0, true);
+	shared_ptr<dcp::CPL> cpl;
+
+	for (int i = 0; i < static_cast<int>(TextType::COUNT); ++i) {
+		_text_count[i] = 0;
+	}
+
+	if (content->cpl ()) {
+		/* Use the CPL that the content was using before */
+		for (auto i: cpls()) {
+			if (i->id() == content->cpl().get()) {
+				cpl = i;
+			}
+		}
+	} else {
+		/* Choose the CPL with the fewest unsatisfied references */
+
+		int least_unsatisfied = INT_MAX;
+
+		for (auto i: cpls()) {
+			int unsatisfied = 0;
+			for (auto j: i->reels()) {
+				if (j->main_picture() && !j->main_picture()->asset_ref().resolved()) {
+					++unsatisfied;
+				}
+				if (j->main_sound() && !j->main_sound()->asset_ref().resolved()) {
+					++unsatisfied;
+				}
+				if (j->main_subtitle() && !j->main_subtitle()->asset_ref().resolved()) {
+					++unsatisfied;
+				}
+				if (j->atmos() && !j->atmos()->asset_ref().resolved()) {
+					++unsatisfied;
+				}
+			}
 
-	if (content->kdm ()) {
-		dcp.add (dcp::DecryptedKDM (content->kdm().get(), Config::instance()->decryption_chain()->key().get ()));
+			if (unsatisfied < least_unsatisfied) {
+				least_unsatisfied = unsatisfied;
+				cpl = i;
+			}
+		}
 	}
 
-	if (dcp.cpls().size() == 0) {
+	if (!cpl) {
 		throw DCPError ("No CPLs found in DCP");
-	} else if (dcp.cpls().size() > 1) {
-		throw DCPError ("Multiple CPLs found in DCP");
 	}
 
-	_name = dcp.cpls().front()->content_title_text ();
+	_cpl = cpl->id ();
+	_name = cpl->content_title_text ();
+	_content_kind = cpl->content_kind ();
 
-	list<shared_ptr<dcp::Reel> > reels = dcp.cpls().front()->reels ();
-	for (list<shared_ptr<dcp::Reel> >::const_iterator i = reels.begin(); i != reels.end(); ++i) {
+	auto try_to_parse_language = [](optional<string> lang) -> boost::optional<dcp::LanguageTag> {
+		try {
+			if (lang) {
+				return dcp::LanguageTag (*lang);
+			}
+		} catch (...) {}
+		return boost::none;
+	};
+
+	for (auto i: cpl->reels()) {
 
-		if ((*i)->main_picture ()) {
-			dcp::Fraction const frac = (*i)->main_picture()->frame_rate ();
+		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;
+				return;
+			}
+
+			auto const frac = i->main_picture()->edit_rate ();
 			float const fr = float(frac.numerator) / frac.denominator;
 			if (!_video_frame_rate) {
 				_video_frame_rate = fr;
@@ -77,18 +137,26 @@ DCPExaminer::DCPExaminer (shared_ptr<const DCPContent> content)
 				throw DCPError (_("Mismatched frame rates in DCP"));
 			}
 
-			shared_ptr<dcp::PictureAsset> asset = (*i)->main_picture()->asset ();
+			_has_video = true;
+			auto asset = i->main_picture()->asset();
 			if (!_video_size) {
 				_video_size = asset->size ();
 			} else if (_video_size.get() != asset->size ()) {
 				throw DCPError (_("Mismatched video sizes in DCP"));
 			}
 
-			_video_length += (*i)->main_picture()->duration();
+			_video_length += i->main_picture()->actual_duration();
 		}
 
-		if ((*i)->main_sound ()) {
-			shared_ptr<dcp::SoundAsset> asset = (*i)->main_sound()->asset ();
+		if (i->main_sound ()) {
+			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;
+				return;
+			}
+
+			_has_audio = true;
+			auto asset = i->main_sound()->asset();
 
 			if (!_audio_channels) {
 				_audio_channels = asset->channels ();
@@ -102,36 +170,128 @@ DCPExaminer::DCPExaminer (shared_ptr<const DCPContent> content)
 				throw DCPError (_("Mismatched audio sample rates in DCP"));
 			}
 
-			_audio_length += (*i)->main_sound()->duration();
+			_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;
+				return;
+			}
+
+			_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;
+				return;
+			}
+
+			_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 ()) {
+			auto rm = i->main_markers()->get();
+			_markers.insert (rm.begin(), rm.end());
+		}
+
+		if (i->atmos()) {
+			_has_atmos = true;
+			_atmos_length += i->atmos()->actual_duration();
+			if (_atmos_edit_rate != dcp::Fraction()) {
+				DCPOMATIC_ASSERT (i->atmos()->edit_rate() == _atmos_edit_rate);
+			}
+			_atmos_edit_rate = i->atmos()->edit_rate();
 		}
 
-		if ((*i)->main_subtitle ()) {
-			_has_subtitles = true;
+		if (i->main_picture()) {
+			_reel_lengths.push_back (i->main_picture()->actual_duration());
+		} else if (i->main_sound()) {
+			_reel_lengths.push_back (i->main_sound()->actual_duration());
+		} else if (i->main_subtitle()) {
+			_reel_lengths.push_back (i->main_subtitle()->actual_duration());
+		} else if (!i->closed_captions().empty()) {
+			_reel_lengths.push_back (i->closed_captions().front()->actual_duration());
+		} else if (!i->atmos()) {
+			_reel_lengths.push_back (i->atmos()->actual_duration());
 		}
 	}
 
-	_encrypted = dcp.encrypted ();
+	_encrypted = cpl->any_encrypted ();
 	_kdm_valid = true;
 
-	/* Check that we can read the first picture frame */
+	/* 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 {
-		if (!dcp.cpls().empty () && !dcp.cpls().front()->reels().empty ()) {
-			shared_ptr<dcp::PictureAsset> asset = dcp.cpls().front()->reels().front()->main_picture()->asset ();
-			shared_ptr<dcp::MonoPictureAsset> mono = dynamic_pointer_cast<dcp::MonoPictureAsset> (asset);
-			shared_ptr<dcp::StereoPictureAsset> stereo = dynamic_pointer_cast<dcp::StereoPictureAsset> (asset);
+		for (auto i: cpl->reels()) {
+			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->get_frame(0)->xyz_image ();
+				auto reader = mono->start_read();
+				reader->set_check_hmac (false);
+				reader->get_frame(0)->xyz_image();
 			} else {
-				stereo->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()) {
+				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()) {
+				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()) {
+				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::DCPReadError& e) {
+	} catch (dcp::ReadError& e) {
+		_kdm_valid = false;
+	} catch (dcp::MiscError& e) {
 		_kdm_valid = false;
-		if (_encrypted && content->kdm ()) {
-			/* XXX: maybe don't use an exception for this */
-			throw runtime_error (_("The KDM does not decrypt the DCP.  Perhaps it is targeted at the wrong CPL."));
-		}
 	}
+
+	_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();
+	for (auto i: cpl->content_versions()) {
+		_content_versions.push_back (i.label_text);
+	}
+
+	_cpl = cpl->id ();
 }