X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fdcp_subtitle_decoder.cc;h=d5cbabf1b51d5e65f652638a8518adbd3d2859de;hb=59953282b9f9da1164f39181347a01672c4f674c;hp=04b264192cd9d43c184449820b9c16213118ed28;hpb=89aa9d4ba69e471949f791cdafe4ae20cea554d2;p=dcpomatic.git

diff --git a/src/lib/dcp_subtitle_decoder.cc b/src/lib/dcp_subtitle_decoder.cc
index 04b264192..d5cbabf1b 100644
--- a/src/lib/dcp_subtitle_decoder.cc
+++ b/src/lib/dcp_subtitle_decoder.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2014-2016 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2014-2021 Carl Hetherington <cth@carlh.net>
 
     This file is part of DCP-o-matic.
 
@@ -18,37 +18,92 @@
 
 */
 
-#include "dcp_subtitle_decoder.h"
+
 #include "dcp_subtitle_content.h"
+#include "dcp_subtitle_decoder.h"
+#include "font.h"
+#include "text_content.h"
 #include <dcp/interop_subtitle_asset.h>
-#include <iostream>
+#include <dcp/load_font_node.h>
 
+
+using std::dynamic_pointer_cast;
 using std::list;
-using std::cout;
-using boost::shared_ptr;
-using boost::bind;
+using std::make_shared;
+using std::shared_ptr;
+using std::string;
+using std::vector;
+using boost::optional;
+using namespace dcpomatic;
 
-DCPSubtitleDecoder::DCPSubtitleDecoder (shared_ptr<const DCPSubtitleContent> content, shared_ptr<Log> log)
-{
-	subtitle.reset (new SubtitleDecoder (this, content->subtitle, log));
 
-	shared_ptr<dcp::SubtitleAsset> c (load (content->path (0)));
+DCPSubtitleDecoder::DCPSubtitleDecoder (shared_ptr<const Film> film, shared_ptr<const DCPSubtitleContent> content)
+	: Decoder (film)
+{
+	/* Load the XML or MXF file */
+	auto const c = load (content->path(0));
+	c->fix_empty_font_ids ();
 	_subtitles = c->subtitles ();
 	_next = _subtitles.begin ();
+
+	ContentTime first;
+	if (_next != _subtitles.end()) {
+		first = content_time_period(*_next).from;
+	}
+	text.push_back (make_shared<TextDecoder>(this, content->only_text(), first));
+
+	/* The fonts that are included in content's file; if it's interop there will be none
+	 * (as the fonts are held in separate assets).
+	 */
+	auto fonts_in_asset = c->font_data();
+
+	/* Fonts specified in the TextContent */
+	list<shared_ptr<dcpomatic::Font>> fonts_in_content;
+	for (auto i: content->text) {
+		auto this_fonts = i->fonts();
+		std::copy(this_fonts.begin(), this_fonts.end(), std::back_inserter(fonts_in_content));
+	}
+	fonts_in_content.sort();
+	fonts_in_content.unique();
+
+	/* Find a font for each <LoadFont> Node */
+	for (auto i: c->load_font_nodes()) {
+		bool done = false;
+		for (auto j: fonts_in_content) {
+			if (j->id() == i->id && j->file()) {
+				// One was specified in the content
+				_fonts.push_back (FontData(i->id, dcp::ArrayData(*j->file())));
+				done = true;
+			}
+		}
+		if (!done) {
+			if (fonts_in_asset.find(i->id) != fonts_in_asset.end()) {
+				// One was included in the subtitle file
+				_fonts.push_back (FontData(i->id, fonts_in_asset[i->id]));
+				done = true;
+			}
+		}
+		if (!done) {
+			// Give up and add a default
+			_fonts.push_back (FontData(i->id, dcp::ArrayData(default_font_file())));
+		}
+	}
 }
 
+
 void
 DCPSubtitleDecoder::seek (ContentTime time, bool accurate)
 {
 	Decoder::seek (time, accurate);
 
 	_next = _subtitles.begin ();
-	list<dcp::SubtitleString>::const_iterator i = _subtitles.begin ();
-	while (i != _subtitles.end() && ContentTime::from_seconds (_next->in().as_seconds()) < time) {
+	auto i = _subtitles.begin ();
+	while (i != _subtitles.end() && ContentTime::from_seconds ((*_next)->in().as_seconds()) < time) {
 		++i;
 	}
 }
 
+
 bool
 DCPSubtitleDecoder::pass ()
 {
@@ -58,28 +113,62 @@ DCPSubtitleDecoder::pass ()
 
 	/* Gather all subtitles with the same time period that are next
 	   on the list.  We must emit all subtitles for the same time
-	   period with the same text_subtitle() call otherwise the
-	   SubtitleDecoder will assume there is nothing else at the
-	   time of emit the first.
+	   period with the same emit*() call otherwise the
+	   TextDecoder will assume there is nothing else at the
+	   time of emitting the first.
 	*/
 
 	list<dcp::SubtitleString> s;
-	ContentTimePeriod const p = content_time_period (*_next);
+	list<dcp::SubtitleImage> i;
+	auto const p = content_time_period (*_next);
 
 	while (_next != _subtitles.end () && content_time_period (*_next) == p) {
-		s.push_back (*_next);
-		++_next;
+		auto ns = dynamic_pointer_cast<const dcp::SubtitleString>(*_next);
+		if (ns) {
+			s.push_back (*ns);
+			++_next;
+		} else {
+			/* XXX: perhaps these image subs should also be collected together like the string ones are;
+			   this would need to be done both here and in DCPDecoder.
+			*/
+
+			auto ni = dynamic_pointer_cast<const dcp::SubtitleImage>(*_next);
+			if (ni) {
+				emit_subtitle_image (p, *ni, film()->frame_size(), only_text());
+				++_next;
+			}
+		}
 	}
 
-	subtitle->emit_text (p, s);
+	only_text()->emit_plain (p, s);
 	return false;
 }
 
+
 ContentTimePeriod
-DCPSubtitleDecoder::content_time_period (dcp::SubtitleString s) const
+DCPSubtitleDecoder::content_time_period (shared_ptr<const dcp::Subtitle> s) const
+{
+	return {
+		ContentTime::from_seconds(s->in().as_seconds()),
+		ContentTime::from_seconds(s->out().as_seconds())
+	};
+}
+
+
+vector<dcpomatic::FontData>
+DCPSubtitleDecoder::fonts () const
 {
-	return ContentTimePeriod (
-		ContentTime::from_seconds (s.in().as_seconds ()),
-		ContentTime::from_seconds (s.out().as_seconds ())
-		);
+	return _fonts;
+}
+
+
+/** @return time of first subtitle, if there is one */
+optional<ContentTime>
+DCPSubtitleDecoder::first () const
+{
+	if (_subtitles.empty()) {
+		return {};
+	}
+
+	return ContentTime::from_seconds(_subtitles[0]->in().as_seconds());
 }