+ int N = 0;
+ for (list<Line>::const_iterator j = i->lines.begin(); j != i->lines.end(); ++j) {
+
+ memset (buffer, 0, 1024);
+
+ /* Subtitle group number */
+ put_int_as_int (buffer + 0, 1, 1);
+ /* Subtitle number */
+ put_int_as_int (buffer + 1, N, 2);
+ /* Extension block number. Use 0xff here to indicate that it is the last TTI
+ block in this subtitle "set", as we only ever use one.
+ */
+ put_int_as_int (buffer + 3, 255, 1);
+ /* Cumulative status */
+ put_int_as_int (buffer + 4, tables.cumulative_status_enum_to_file (CUMULATIVE_STATUS_NOT_CUMULATIVE), 1);
+ /* Time code in */
+ put_int_as_int (buffer + 5, i->from.hours (), 1);
+ put_int_as_int (buffer + 6, i->from.minutes (), 1);
+ put_int_as_int (buffer + 7, i->from.seconds (), 1);
+ put_int_as_int (buffer + 8, i->from.frames_at (sub::Rational (frames_per_second * 1000, 1000)), 1);
+ /* Time code out */
+ put_int_as_int (buffer + 9, i->to.hours (), 1);
+ put_int_as_int (buffer + 10, i->to.minutes (), 1);
+ put_int_as_int (buffer + 11, i->to.seconds (), 1);
+ put_int_as_int (buffer + 12, i->to.frames_at (sub::Rational (frames_per_second * 1000, 1000)), 1);
+ /* Vertical position */
+ int vp = 0;
+ if (j->vertical_position.proportional) {
+ switch (j->vertical_position.reference.get_value_or (TOP_OF_SCREEN)) {
+ case TOP_OF_SCREEN:
+ vp = rint (j->vertical_position.proportional.get() * ROWS);
+ break;
+ case CENTRE_OF_SCREEN:
+ vp = rint (j->vertical_position.proportional.get() * ROWS + (ROWS / 2.0));
+ break;
+ case BOTTOM_OF_SCREEN:
+ vp = rint (ROWS - (j->vertical_position.proportional.get() * ROWS));
+ break;
+ default:
+ break;
+ }
+ } else if (j->vertical_position.line) {
+ float const prop = float (j->vertical_position.line.get()) / j->vertical_position.lines.get ();
+ switch (j->vertical_position.reference.get_value_or (TOP_OF_SCREEN)) {
+ case TOP_OF_SCREEN:
+ vp = prop * ROWS;
+ break;
+ case CENTRE_OF_SCREEN:
+ vp = (prop + 0.5) * ROWS;
+ break;
+ case BOTTOM_OF_SCREEN:
+ vp = (1 - prop) * ROWS;
+ break;
+ default:
+ break;
+ }
+ }
+ put_int_as_int (buffer + 13, vp, 1);
+ /* Justification code */
+ /* XXX */
+ put_int_as_int (buffer + 14, tables.justification_enum_to_file (JUSTIFICATION_NONE), 1);
+ /* Comment flag */
+ put_int_as_int (buffer + 15, tables.comment_enum_to_file (COMMENT_NO), 1);
+
+ /* Text */
+ string text;
+ bool italic = false;
+ bool underline = false;
+
+ for (list<Block>::const_iterator k = j->blocks.begin(); k != j->blocks.end(); ++k) {
+ if (k->underline && !underline) {
+ text += "\x82";
+ underline = true;
+ } else if (underline && !k->underline) {
+ text += "\x83";
+ underline = false;
+ }
+ if (k->italic && !italic) {
+ text += "\x80";
+ italic = true;
+ } else if (italic && !k->italic) {
+ text += "\x81";
+ italic = false;
+ }
+
+ text += utf16_to_iso6937 (utf_to_utf<wchar_t> (k->text));
+ }
+
+ text += "\x8A";
+
+ if (text.length() > 111) {
+ text = text.substr (111);
+ }
+
+ while (text.length() < 112) {
+ text += "\x8F";
+ }
+
+ put_string (buffer + 16, text);
+ output.write (buffer, 128);
+
+ ++N;
+ }