*/
+/** @file src/stl_binary_writer.cc
+ * @brief Writer for STL binary files.
+ */
+
#include "stl_binary_writer.h"
#include "subtitle.h"
#include "iso6937.h"
using boost::locale::conv::utf_to_utf;
using namespace sub;
+/** Arbitrary number which to divide the screen into rows; e.g.
+ * 64 here would mean that there are 64 addressable vertical positions
+ * on the screen, each 1/64th of the screen height tall.
+ *
+ * The magic 23 makes our output agree more closely with
+ * AnnotationEdit, which makes life easier when testing.
+ */
+static int const ROWS = 23;
+
static void
put_string (char* p, string s)
{
ofstream output (file_name.string().c_str ());
STLBinaryTables tables;
- /* Find the longest subtitle in characters and the number of rows */
+ /* Find the longest subtitle in characters and the number of lines */
int longest = 0;
+ int lines = 0;
- set<float> check_top;
- set<float> check_centre;
- set<float> check_bottom;
- set<int> check_rows;
-
for (list<Subtitle>::const_iterator i = subtitles.begin(); i != subtitles.end(); ++i) {
for (list<Line>::const_iterator j = i->lines.begin(); j != i->lines.end(); ++j) {
int t = 0;
t += k->text.size ();
}
longest = max (longest, t);
-
- if (j->vertical_position.proportional) {
- switch (j->vertical_position.reference.get ()) {
- case TOP:
- check_top.insert (j->vertical_position.proportional.get ());
- break;
- case CENTRE:
- check_centre.insert (j->vertical_position.proportional.get ());
- break;
- case BOTTOM:
- check_bottom.insert (j->vertical_position.proportional.get ());
- break;
- }
- } else {
- check_rows.insert (j->vertical_position.line.get ());
- }
+ ++lines;
}
}
-
- int const rows = check_top.size() + check_centre.size() + check_bottom.size() + check_rows.size();
/* Code page: 850 */
put_string (buffer + 0, "850");
put_string (buffer + 230, revision_date);
put_int_as_string (buffer + 236, revision_number, 2);
/* TTI blocks */
- put_int_as_string (buffer + 238, subtitles.size (), 5);
+ put_int_as_string (buffer + 238, lines, 5);
/* Total number of subtitles */
- put_int_as_string (buffer + 243, subtitles.size (), 5);
+ put_int_as_string (buffer + 243, lines, 5);
/* Total number of subtitle groups */
put_string (buffer + 248, "001");
/* Maximum number of displayable characters in any text row */
put_int_as_string (buffer + 251, longest, 2);
/* Maximum number of displayable rows */
- put_int_as_string (buffer + 253, rows, 2);
+ put_int_as_string (buffer + 253, ROWS, 2);
/* Time code status */
put_string (buffer + 255, "1");
/* Start-of-programme time code */
output.write (buffer, 1024);
- int N = 0;
for (list<Subtitle>::const_iterator i = subtitles.begin(); i != subtitles.end(); ++i) {
+ 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.frame(frames_per_second).hours (), 1);
- put_int_as_int (buffer + 6, i->from.frame(frames_per_second).minutes (), 1);
- put_int_as_int (buffer + 7, i->from.frame(frames_per_second).seconds (), 1);
- put_int_as_int (buffer + 8, i->from.frame(frames_per_second).frames (), 1);
- /* Time code out */
- put_int_as_int (buffer + 9, i->to.frame(frames_per_second).hours (), 1);
- put_int_as_int (buffer + 10, i->to.frame(frames_per_second).minutes (), 1);
- put_int_as_int (buffer + 11, i->to.frame(frames_per_second).seconds (), 1);
- put_int_as_int (buffer + 12, i->to.frame(frames_per_second).frames (), 1);
- /* Vertical position */
- /* XXX */
- put_int_as_int (buffer + 13, 0, 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);
+ memset (buffer, 0, 1024);
- /* Text */
- string text;
- bool italic = false;
- bool underline = false;
-
- for (list<Line>::const_iterator j = i->lines.begin(); j != i->lines.end(); ++j) {
+ /* 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";
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);
- }
+
+ if (text.length() > 111) {
+ text = text.substr (111);
+ }
+
+ while (text.length() < 112) {
+ text += "\x8F";
+ }
+
+ put_string (buffer + 16, text);
+ output.write (buffer, 128);
- while (text.length() < 112) {
- text += "\x8F";
+ ++N;
}
-
- put_string (buffer + 16, text);
- output.write (buffer, 128);
}
delete[] buffer;
projects / libsub.git / blobdiff