Fix incorrect calculation of extension block number (EBN); previously

an incorrect 0 would be used if the line length was exactly 112.

diff --git a/src/stl_binary_writer.cc b/src/stl_binary_writer.cc
index 456bbe17ff0c035f7967e25f4ff8d61ec65fbd46..adb9e1145c75736bd9ca11fe987350eb2d73953b 100644 (file)
--- a/src/stl_binary_writer.cc
+++ b/src/stl_binary_writer.cc
@@ -272,7 +272,7 @@ make_tti_blocks (list<Subtitle> const& subtitles, STLBinaryTables const& tables,
                        offset += this_time;
 
                        /* Extension block number.  Count up from 0 but use 0xff for the last one */
                        offset += this_time;
 
                        /* Extension block number.  Count up from 0 but use 0xff for the last one */

-                       put_int_as_int (buffer + 3, this_time < block_size ? 0xff : block_number, 1);
+                       put_int_as_int (buffer + 3, offset == text.length() ? 0xff : block_number, 1);

                        ++block_number;
 
                        char* finished = new char[tti_size];
                        ++block_number;
 
                        char* finished = new char[tti_size];