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authorCarl Hetherington <cth@carlh.net>2025-12-28 01:21:20 +0100
committerCarl Hetherington <cth@carlh.net>2025-12-30 12:22:30 +0100
commit0beaf6245ef0c1462cbe7eaf6faeabb651b68de3 (patch)
treed35f286cf671082ca501a4a8184ebbd9e6c33285
parent931aa567b5435ae15877547b6030a583e1b19881 (diff)
Fix closed caption layout in the presence of italics / other markup (#3067).
-rw-r--r--src/lib/layout_closed_captions.cc15
-rw-r--r--test/closed_caption_test.cc43
2 files changed, 57 insertions, 1 deletions
diff --git a/src/lib/layout_closed_captions.cc b/src/lib/layout_closed_captions.cc
index 0f55f79f5..858b91c39 100644
--- a/src/lib/layout_closed_captions.cc
+++ b/src/lib/layout_closed_captions.cc
@@ -22,10 +22,12 @@
#include "dcpomatic_assert.h"
#include "layout_closed_captions.h"
#include "string_text.h"
+#include "util.h"
using std::string;
using std::vector;
+using boost::optional;
vector<string>
@@ -48,8 +50,19 @@ layout_closed_captions(vector<StringText> text)
std::sort(text.begin(), text.end(), [&](StringText const & a, StringText const & b) { return from_top(a) < from_top(b); });
vector<string> strings;
+ string current;
+ optional<float> last_position;
for (auto const& t: text) {
- strings.push_back(t.text());
+ if (last_position && !text_positions_close(*last_position, t.v_position()) && !current.empty()) {
+ strings.push_back(current);
+ current = "";
+ }
+ current += t.text();
+ last_position = t.v_position();
+ }
+
+ if (!current.empty()) {
+ strings.push_back(current);
}
return strings;
diff --git a/test/closed_caption_test.cc b/test/closed_caption_test.cc
index c8ef6865d..dc75bc5bd 100644
--- a/test/closed_caption_test.cc
+++ b/test/closed_caption_test.cc
@@ -20,6 +20,8 @@
#include "lib/film.h"
+#include "lib/layout_closed_captions.h"
+#include "lib/string_text.h"
#include "lib/string_text_file_content.h"
#include "lib/text_content.h"
#include "test.h"
@@ -32,6 +34,7 @@
using std::list;
using std::make_shared;
+using std::vector;
/** Basic test that Interop closed captions are written */
@@ -121,3 +124,43 @@ BOOST_AUTO_TEST_CASE (closed_caption_test2)
cl.run ();
}
+
+
+BOOST_AUTO_TEST_CASE(closed_captions_with_italics_test)
+{
+ vector<StringText> text = {
+ {
+ {
+ {}, false, true, true, {}, 42, 1, dcp::Time(0, 0, 0, 0, 24), dcp::Time(0, 0, 1, 0, 24),
+ 0, dcp::HAlign::CENTER,
+ 0, dcp::VAlign::CENTER,
+ 0,
+ {}, dcp::Direction::LTR, "Hello ", dcp::Effect::NONE, {}, {}, {}, 0, {}
+ }, 1, {}, dcp::SubtitleStandard::SMPTE_2014
+ },
+ {
+ {
+ {}, true, true, true, {}, 42, 1, dcp::Time(0, 0, 0, 0, 24), dcp::Time(0, 0, 1, 0, 24),
+ 0, dcp::HAlign::CENTER,
+ 0, dcp::VAlign::CENTER,
+ 0,
+ {}, dcp::Direction::LTR, "world", dcp::Effect::NONE, {}, {}, {}, 0, {}
+ }, 1, {}, dcp::SubtitleStandard::SMPTE_2014
+ },
+ {
+ {
+ {}, false, true, true, {}, 42, 1, dcp::Time(0, 0, 0, 0, 24), dcp::Time(0, 0, 1, 0, 24),
+ 0, dcp::HAlign::CENTER,
+ 4, dcp::VAlign::CENTER,
+ 0,
+ {}, dcp::Direction::LTR, "It's a new line", dcp::Effect::NONE, {}, {}, {}, 0, {}
+ }, 1, {}, dcp::SubtitleStandard::SMPTE_2014
+ }
+ };
+
+ auto const strings = layout_closed_captions(text);
+ BOOST_REQUIRE_EQUAL(strings.size(), 2U);
+ BOOST_CHECK_EQUAL(strings[0], "Hello world");
+ BOOST_CHECK_EQUAL(strings[1], "It's a new line");
+}
+