X-Git-Url: https://main.carlh.net/gitweb/?p=dcpomatic.git;a=blobdiff_plain;f=src%2Flib%2Freel_writer.cc;h=78148d18f1fb4b6c301b59269f177124d1da253e;hp=366e6edc63271ac8c5152505be6910471b3d9636;hb=ac34066d5e448d1984d11a180be74e31b6e13b5c;hpb=0f45c718bf9b8e3922349dc4d2e92db229e64d88

diff --git a/src/lib/reel_writer.cc b/src/lib/reel_writer.cc
index 366e6edc6..78148d18f 100644
--- a/src/lib/reel_writer.cc
+++ b/src/lib/reel_writer.cc
@@ -32,24 +32,26 @@
 #include "image.h"
 #include <dcp/atmos_asset.h>
 #include <dcp/atmos_asset_writer.h>
+#include <dcp/certificate_chain.h>
+#include <dcp/cpl.h>
+#include <dcp/dcp.h>
+#include <dcp/interop_subtitle_asset.h>
 #include <dcp/mono_picture_asset.h>
-#include <dcp/stereo_picture_asset.h>
-#include <dcp/sound_asset.h>
-#include <dcp/sound_asset_writer.h>
+#include <dcp/raw_convert.h>
 #include <dcp/reel.h>
 #include <dcp/reel_atmos_asset.h>
+#include <dcp/reel_interop_closed_caption_asset.h>
+#include <dcp/reel_interop_subtitle_asset.h>
+#include <dcp/reel_markers_asset.h>
 #include <dcp/reel_mono_picture_asset.h>
-#include <dcp/reel_stereo_picture_asset.h>
+#include <dcp/reel_smpte_closed_caption_asset.h>
+#include <dcp/reel_smpte_subtitle_asset.h>
 #include <dcp/reel_sound_asset.h>
-#include <dcp/reel_subtitle_asset.h>
-#include <dcp/reel_closed_caption_asset.h>
-#include <dcp/reel_markers_asset.h>
-#include <dcp/dcp.h>
-#include <dcp/cpl.h>
-#include <dcp/certificate_chain.h>
-#include <dcp/interop_subtitle_asset.h>
+#include <dcp/reel_stereo_picture_asset.h>
 #include <dcp/smpte_subtitle_asset.h>
-#include <dcp/raw_convert.h>
+#include <dcp/sound_asset.h>
+#include <dcp/sound_asset_writer.h>
+#include <dcp/stereo_picture_asset.h>
 #include <dcp/subtitle_image.h>
 
 #include "i18n.h"
@@ -166,8 +168,13 @@ ReelWriter::ReelWriter (
 	}
 
 	if (film()->audio_channels()) {
+		auto lang = film()->audio_language();
 		_sound_asset = make_shared<dcp::SoundAsset> (
-			dcp::Fraction(film()->video_frame_rate(), 1), film()->audio_frame_rate(), film()->audio_channels(), film()->audio_language(), standard
+			dcp::Fraction(film()->video_frame_rate(), 1),
+			film()->audio_frame_rate(),
+			film()->audio_channels(),
+			lang ? *lang : dcp::LanguageTag("en-US"),
+			standard
 			);
 
 		_sound_asset->set_metadata (mxf_metadata());
@@ -433,8 +440,12 @@ ReelWriter::finish (boost::filesystem::path output_dcp)
 	}
 }
 
-template <class T>
-shared_ptr<T>
+
+/** Try to make a ReelAsset for a subtitles or closed captions in a given period in the DCP.
+ *  A SubtitleAsset can be provided, or we will use one from @ref refs if not.
+ */
+template <class Interop, class SMPTE, class Result>
+shared_ptr<Result>
 maybe_add_text (
 	shared_ptr<dcp::SubtitleAsset> asset,
 	int64_t picture_duration,
@@ -450,7 +461,7 @@ maybe_add_text (
 {
 	Frame const period_duration = period.duration().frames_round(film->video_frame_rate());
 
-	shared_ptr<T> reel_asset;
+	shared_ptr<Result> reel_asset;
 
 	if (asset) {
 		/* Add the font to the subtitle content */
@@ -458,33 +469,38 @@ maybe_add_text (
 			asset->add_font (j.id, j.data.get_value_or(default_font));
 		}
 
-		if (dynamic_pointer_cast<dcp::InteropSubtitleAsset> (asset)) {
-			auto directory = output_dcp / asset->id ();
+		if (auto interop = dynamic_pointer_cast<dcp::InteropSubtitleAsset>(asset)) {
+			auto directory = output_dcp / interop->id ();
 			boost::filesystem::create_directories (directory);
-			asset->write (directory / ("sub_" + asset->id() + ".xml"));
-		} else {
+			interop->write (directory / ("sub_" + interop->id() + ".xml"));
+			reel_asset = make_shared<Interop> (
+				interop,
+				dcp::Fraction(film->video_frame_rate(), 1),
+				picture_duration,
+				0
+				);
+		} else if (auto smpte = dynamic_pointer_cast<dcp::SMPTESubtitleAsset>(asset)) {
 			/* All our assets should be the same length; use the picture asset length here
 			   as a reference to set the subtitle one.  We'll use the duration rather than
 			   the intrinsic duration; we don't care if the picture asset has been trimmed, we're
 			   just interested in its presentation length.
 			*/
-			dynamic_pointer_cast<dcp::SMPTESubtitleAsset>(asset)->set_intrinsic_duration (picture_duration);
-
-			asset->write (
+			smpte->set_intrinsic_duration(picture_duration);
+			smpte->write (
 				output_dcp / ("sub_" + asset->id() + ".mxf")
 				);
+			reel_asset = make_shared<SMPTE> (
+				smpte,
+				dcp::Fraction(film->video_frame_rate(), 1),
+				picture_duration,
+				0
+				);
 		}
 
-		reel_asset = make_shared<T> (
-			asset,
-			dcp::Fraction(film->video_frame_rate(), 1),
-			picture_duration,
-			0
-			);
 	} else {
 		/* We don't have a subtitle asset of our own; hopefully we have one to reference */
 		for (auto j: refs) {
-			auto k = dynamic_pointer_cast<T> (j.asset);
+			auto k = dynamic_pointer_cast<Result> (j.asset);
 			if (k && j.period == period) {
 				reel_asset = k;
 				/* If we have a hash for this asset in the CPL, assume that it is correct */
@@ -617,19 +633,19 @@ ReelWriter::create_reel_text (
 	set<DCPTextTrack> ensure_closed_captions
 	) const
 {
-	auto subtitle = maybe_add_text<dcp::ReelSubtitleAsset> (
+	auto subtitle = maybe_add_text<dcp::ReelInteropSubtitleAsset, dcp::ReelSMPTESubtitleAsset, dcp::ReelSubtitleAsset> (
 		_subtitle_asset, duration, reel, refs, fonts, _default_font, film(), _period, output_dcp, _text_only
 		);
 
 	if (subtitle) {
 		/* We have a subtitle asset that we either made or are referencing */
-		if (!film()->subtitle_languages().empty()) {
-			subtitle->set_language (film()->subtitle_languages().front());
+		if (auto main_language = film()->subtitle_languages().first) {
+			subtitle->set_language (*main_language);
 		}
 	} else if (ensure_subtitles) {
 		/* We had no subtitle asset, but we've been asked to make sure there is one */
-		subtitle = maybe_add_text<dcp::ReelSubtitleAsset>(
-			empty_text_asset(TextType::OPEN_SUBTITLE, optional<DCPTextTrack>()),
+		subtitle = maybe_add_text<dcp::ReelInteropSubtitleAsset, dcp::ReelSMPTESubtitleAsset, dcp::ReelSubtitleAsset> (
+			empty_text_asset(TextType::OPEN_SUBTITLE, optional<DCPTextTrack>(), true),
 			duration,
 			reel,
 			refs,
@@ -643,13 +659,13 @@ ReelWriter::create_reel_text (
 	}
 
 	for (auto const& i: _closed_caption_assets) {
-		auto a = maybe_add_text<dcp::ReelClosedCaptionAsset> (
+		auto a = maybe_add_text<dcp::ReelInteropClosedCaptionAsset, dcp::ReelSMPTEClosedCaptionAsset, dcp::ReelClosedCaptionAsset> (
 			i.second, duration, reel, refs, fonts, _default_font, film(), _period, output_dcp, _text_only
 			);
 		DCPOMATIC_ASSERT (a);
 		a->set_annotation_text (i.first.name);
-		if (!i.first.language.empty()) {
-			a->set_language (dcp::LanguageTag(i.first.language));
+		if (i.first.language) {
+			a->set_language (i.first.language.get());
 		}
 
 		ensure_closed_captions.erase (i.first);
@@ -657,19 +673,18 @@ ReelWriter::create_reel_text (
 
 	/* Make empty tracks for anything we've been asked to ensure but that we haven't added */
 	for (auto i: ensure_closed_captions) {
-		auto a = maybe_add_text<dcp::ReelClosedCaptionAsset> (
-			empty_text_asset(TextType::CLOSED_CAPTION, i), duration, reel, refs, fonts, _default_font, film(), _period, output_dcp, _text_only
+		auto a = maybe_add_text<dcp::ReelInteropClosedCaptionAsset, dcp::ReelSMPTEClosedCaptionAsset, dcp::ReelClosedCaptionAsset> (
+			empty_text_asset(TextType::CLOSED_CAPTION, i, true), duration, reel, refs, fonts, _default_font, film(), _period, output_dcp, _text_only
 			);
 		DCPOMATIC_ASSERT (a);
 		a->set_annotation_text (i.name);
-		if (!i.language.empty()) {
-			a->set_language (dcp::LanguageTag(i.language));
+		if (i.language) {
+			a->set_language (i.language.get());
 		}
 	}
 }
 
 
-
 void
 ReelWriter::create_reel_markers (shared_ptr<dcp::Reel> reel) const
 {
@@ -732,7 +747,8 @@ ReelWriter::create_reel (
 }
 
 void
-ReelWriter::calculate_digests (boost::function<void (float)> set_progress)
+ReelWriter::calculate_digests (std::function<void (float)> set_progress)
+try
 {
 	if (_picture_asset) {
 		_picture_asset->hash (set_progress);
@@ -745,6 +761,10 @@ ReelWriter::calculate_digests (boost::function<void (float)> set_progress)
 	if (_atmos_asset) {
 		_atmos_asset->hash (set_progress);
 	}
+} catch (boost::thread_interrupted) {
+	/* set_progress contains an interruption_point, so any of these methods
+	 * may throw thread_interrupted, at which point we just give up.
+	 */
 }
 
 Frame
@@ -767,7 +787,7 @@ ReelWriter::write (shared_ptr<const AudioBuffers> audio)
 
 
 shared_ptr<dcp::SubtitleAsset>
-ReelWriter::empty_text_asset (TextType type, optional<DCPTextTrack> track) const
+ReelWriter::empty_text_asset (TextType type, optional<DCPTextTrack> track, bool with_dummy) const
 {
 	shared_ptr<dcp::SubtitleAsset> asset;
 
@@ -776,9 +796,9 @@ ReelWriter::empty_text_asset (TextType type, optional<DCPTextTrack> track) const
 		auto s = make_shared<dcp::InteropSubtitleAsset>();
 		s->set_movie_title (film()->name());
 		if (type == TextType::OPEN_SUBTITLE) {
-			s->set_language (lang.empty() ? "Unknown" : lang.front().to_string());
-		} else if (!track->language.empty()) {
-			s->set_language (track->language);
+			s->set_language (lang.first ? lang.first->to_string() : "Unknown");
+		} else if (track->language) {
+			s->set_language (track->language->to_string());
 		}
 		s->set_reel_number (raw_convert<string> (_reel_index + 1));
 		asset = s;
@@ -786,10 +806,10 @@ ReelWriter::empty_text_asset (TextType type, optional<DCPTextTrack> track) const
 		auto s = make_shared<dcp::SMPTESubtitleAsset>();
 		s->set_content_title_text (film()->name());
 		s->set_metadata (mxf_metadata());
-		if (type == TextType::OPEN_SUBTITLE && !lang.empty()) {
-			s->set_language (lang.front());
-		} else if (track && !track->language.empty()) {
-			s->set_language (dcp::LanguageTag(track->language));
+		if (type == TextType::OPEN_SUBTITLE && lang.first) {
+			s->set_language (*lang.first);
+		} else if (track && track->language) {
+			s->set_language (dcp::LanguageTag(track->language->to_string()));
 		}
 		s->set_edit_rate (dcp::Fraction (film()->video_frame_rate(), 1));
 		s->set_reel_number (_reel_index + 1);
@@ -798,29 +818,32 @@ ReelWriter::empty_text_asset (TextType type, optional<DCPTextTrack> track) const
 		if (film()->encrypted()) {
 			s->set_key (film()->key());
 		}
-		s->add (
-			std::make_shared<dcp::SubtitleString>(
-				optional<std::string>(),
-				false,
-				false,
-				false,
-				dcp::Colour(),
-				42,
-				1.0,
-				dcp::Time(0, 0, 0, 0, 24),
-				dcp::Time(0, 0, 1, 0, 24),
-				0.5,
-				dcp::HAlign::CENTER,
-				0.5,
-				dcp::VAlign::CENTER,
-				dcp::Direction::LTR,
-				"",
-				dcp::Effect::NONE,
-				dcp::Colour(),
-				dcp::Time(),
-				dcp::Time()
-				)
-		       );
+		if (with_dummy) {
+			s->add (
+				std::make_shared<dcp::SubtitleString>(
+					optional<std::string>(),
+					false,
+					false,
+					false,
+					dcp::Colour(),
+					42,
+					1.0,
+					dcp::Time(0, 0, 0, 0, 24),
+					dcp::Time(0, 0, 1, 0, 24),
+					0.5,
+					dcp::HAlign::CENTER,
+					0.5,
+					dcp::VAlign::CENTER,
+					dcp::Direction::LTR,
+					" ",
+					dcp::Effect::NONE,
+					dcp::Colour(),
+					dcp::Time(),
+					dcp::Time(),
+					0
+					)
+			       );
+		}
 		asset = s;
 	}
 
@@ -846,7 +869,7 @@ ReelWriter::write (PlayerText subs, TextType type, optional<DCPTextTrack> track,
 	}
 
 	if (!asset) {
-		asset = empty_text_asset (type, track);
+		asset = empty_text_asset (type, track, false);
 	}
 
 	switch (type) {