Cache film length for Player::pass.

[dcpomatic.git] / src / lib / text_decoder.cc

diff --git a/src/lib/text_decoder.cc b/src/lib/text_decoder.cc
index 4eaaf37af7cbd50b86ad2fdce8bfbc17253c88c3..4e2432463c260565fbe7829344d970e6d935ce7d 100644 (file)
--- a/src/lib/text_decoder.cc
+++ b/src/lib/text_decoder.cc
@@ -148,9 +148,14 @@ TextDecoder::emit_plain_start (ContentTime from, sub::Subtitle const & subtitle)
 
                                v_align = dcp::VALIGN_TOP;
                        } else {
-                               DCPOMATIC_ASSERT (i.vertical_position.proportional);
                                DCPOMATIC_ASSERT (i.vertical_position.reference);
-                               v_position = i.vertical_position.proportional.get();
+                               if (i.vertical_position.proportional) {
+                                       v_position = i.vertical_position.proportional.get();
+                               } else {
+                                       DCPOMATIC_ASSERT (i.vertical_position.line);
+                                       DCPOMATIC_ASSERT (i.vertical_position.lines);
+                                       v_position = float(*i.vertical_position.line) / *i.vertical_position.lines;
+                               }
 
                                if (lowest_proportional) {
                                        /* Adjust line spacing */