ASS_Track* ass_default_track(ASS_Library* library) {
ASS_Track* track = ass_new_track(library);
track->track_type = TRACK_TYPE_ASS;
track->Timer = 100.;
track->PlayResY = 360;
track->WrapStyle = 0;
if (track->n_styles == 0) {
// stupid hack to stop libass to add a default track
// in front in ass_read_styles - this makes it impossible
// to completely override the "Default" track.
int sid = ass_alloc_style(track);
init_style(track->styles + sid, "MPlayerDummy", track->PlayResY);
}
if (ass_styles_file)
ass_read_styles(track, ass_styles_file, sub_cp);
if (track->default_style <= 0) {
int sid = ass_alloc_style(track);
init_style(track->styles + sid, "Default", track->PlayResY);
track->default_style = sid;
if(fake_video) {
track->PlayResX = 480;
track->PlayResY = 270;
}
}
ass_process_force_style(track);
return track;
}
ASS_Track *mp_ass_default_track(ASS_Library *library, struct MPOpts *opts)
{
ASS_Track *track = ass_new_track(library);
track->track_type = TRACK_TYPE_ASS;
track->Timer = 100.;
track->PlayResY = MP_ASS_FONT_PLAYRESY;
track->WrapStyle = 0;
if (opts->ass_styles_file && opts->ass_style_override)
ass_read_styles(track, opts->ass_styles_file, sub_cp);
if (track->n_styles == 0) {
track->Kerning = true;
int sid = ass_alloc_style(track);
track->default_style = sid;
ASS_Style *style = track->styles + sid;
style->Name = strdup("Default");
style->Alignment = 2;
mp_ass_set_style(style, opts->sub_text_style);
}
if (opts->ass_style_override)
ass_process_force_style(track);
return track;
}
/**
* \brief Parse the tail of Dialogue line
* \param track track
* \param event parsed data goes here
* \param str string to parse, zero-terminated
* \param n_ignored number of format options to skip at the beginning
*/
static int process_event_tail(ASS_Track *track, ASS_Event *event,
char *str, int n_ignored)
{
char *token;
char *tname;
char *p = str;
int i;
ASS_Event *target = event;
char *format = strdup(track->event_format);
char *q = format; // format scanning pointer
if (track->n_styles == 0) {
// add "Default" style to the end
// will be used if track does not contain a default style (or even does not contain styles at all)
int sid = ass_alloc_style(track);
set_default_style(&track->styles[sid]);
track->default_style = sid;
}
for (i = 0; i < n_ignored; ++i) {
NEXT(q, tname);
}
while (1) {
NEXT(q, tname);
if (strcasecmp(tname, "Text") == 0) {
char *last;
event->Text = strdup(p);
if (*event->Text != 0) {
last = event->Text + strlen(event->Text) - 1;
if (last >= event->Text && *last == '\r')
*last = 0;
}
ass_msg(track->library, MSGL_DBG2, "Text = %s", event->Text);
event->Duration -= event->Start;
free(format);
return 0; // "Text" is always the last
}
NEXT(p, token);
ALIAS(End, Duration) // temporarily store end timecode in event->Duration
if (0) { // cool ;)
INTVAL(Layer)
STYLEVAL(Style)
STRVAL(Name)
STRVAL(Effect)
INTVAL(MarginL)
INTVAL(MarginR)
INTVAL(MarginV)
TIMEVAL(Start)
TIMEVAL(Duration)
}
}
free(format);
return 1;
}
ASS_Track* ass_default_track(ASS_Library* library) {
ASS_Track* track = ass_new_track(library);
track->track_type = TRACK_TYPE_ASS;
track->Timer = 100.;
track->PlayResY = 288;
track->WrapStyle = 0;
if (ass_styles_file)
ass_read_styles(track, ass_styles_file, sub_cp);
if (track->n_styles == 0) {
ASS_Style* style;
int sid;
double fs;
uint32_t c1, c2;
sid = ass_alloc_style(track);
style = track->styles + sid;
style->Name = strdup("Default");
style->FontName = (font_fontconfig >= 0 && sub_font_name) ? strdup(sub_font_name) : (font_fontconfig >= 0 && font_name) ? strdup(font_name) : strdup("Sans");
style->treat_fontname_as_pattern = 1;
fs = track->PlayResY * text_font_scale_factor / 100.;
// approximate autoscale coefficients
if (subtitle_autoscale == 2)
fs *= 1.3;
else if (subtitle_autoscale == 3)
fs *= 1.4;
style->FontSize = fs;
if (ass_color) c1 = strtoll(ass_color, NULL, 16);
else c1 = 0xFFFF0000;
if (ass_border_color) c2 = strtoll(ass_border_color, NULL, 16);
else c2 = 0x00000000;
style->PrimaryColour = c1;
style->SecondaryColour = c1;
style->OutlineColour = c2;
style->BackColour = 0x00000000;
style->BorderStyle = 1;
style->Alignment = 2;
style->Outline = 2;
style->MarginL = 10;
style->MarginR = 10;
style->MarginV = 5;
style->ScaleX = 1.;
style->ScaleY = 1.;
}
ass_process_force_style(track);
return track;
}
void LibASS::initOSD()
{
if (osd_track && osd_style && osd_event && osd_renderer)
return;
osd_track = ass_new_track(ass);
int styleID = ass_alloc_style(osd_track);
osd_style = &osd_track->styles[styleID];
setOSDStyle();
int eventID = ass_alloc_event(osd_track);
osd_event = &osd_track->events[eventID];
osd_event->Start = 0;
osd_event->Duration = 1;
osd_event->Style = styleID;
osd_event->ReadOrder = eventID;
osd_renderer = ass_renderer_init(ass);
ass_set_fonts(osd_renderer, NULL, NULL, 1, NULL, 1);
}
// Add default styles, if the track does not have any styles yet.
// Apply style overrides if the user provides any.
static void mp_ass_add_default_styles(ASS_Track *track, struct MPOpts *opts)
{
if (opts->ass_styles_file && opts->ass_style_override)
ass_read_styles(track, opts->ass_styles_file, NULL);
if (track->n_styles == 0) {
if (!track->PlayResY) {
track->PlayResY = MP_ASS_FONT_PLAYRESY;
track->PlayResX = track->PlayResY * 4 / 3;
}
track->Kerning = true;
int sid = ass_alloc_style(track);
track->default_style = sid;
ASS_Style *style = track->styles + sid;
style->Name = strdup("Default");
mp_ass_set_style(style, track->PlayResY, opts->sub_text_style);
}
if (opts->ass_style_override)
ass_process_force_style(track);
}
void LibASS::initASS(const QByteArray &ass_data)
{
if (ass_sub_track && ass_sub_renderer)
return;
ass_sub_track = ass_new_track(ass);
if (!ass_data.isEmpty())
{
ass_process_data(ass_sub_track, (char *)ass_data.data(), ass_data.size());
hasASSData = true;
setASSStyle();
}
else
{
ass_alloc_style(ass_sub_track);
ass_sub_track->styles[0].ScaleX = ass_sub_track->styles[0].ScaleY = 1;
overridePlayRes = true;
hasASSData = false;
setASSStyle();
}
ass_sub_renderer = ass_renderer_init(ass);
ass_set_fonts(ass_sub_renderer, NULL, NULL, true, NULL, true);
}
ASS_Track *mp_ass_default_track(ASS_Library *library)
{
ASS_Track *track = ass_new_track(library);
track->track_type = TRACK_TYPE_ASS;
track->Timer = 100.;
track->PlayResY = 288;
track->WrapStyle = 0;
if (ass_styles_file)
ass_read_styles(track, ass_styles_file, sub_cp);
if (track->n_styles == 0) {
track->Kerning = true;
int sid = ass_alloc_style(track);
ASS_Style *style = track->styles + sid;
style->Name = strdup("Default");
style->FontName = (font_fontconfig >= 0
&& sub_font_name) ? strdup(sub_font_name)
: (font_fontconfig >= 0
&& font_name) ? strdup(font_name) : strdup("Sans");
style->treat_fontname_as_pattern = 1;
double fs = track->PlayResY * text_font_scale_factor / 100.;
/* The font size is always proportional to video height only;
* real -subfont-autoscale behavior is not implemented.
* Apply a correction that corresponds to about 4:3 aspect ratio
* video to get a size somewhat closer to what non-libass rendering
* would produce with the same text_font_scale_factor
* and subtitle_autoscale.
*/
if (subtitle_autoscale == 2)
fs *= 1.3;
else if (subtitle_autoscale == 3)
fs *= 1.7;
uint32_t c1 = 0xFFFFFF00;
uint32_t c2 = 0x00000000;
if (ass_color)
c1 = strtoll(ass_color, NULL, 16);
if (ass_border_color)
c2 = strtoll(ass_border_color, NULL, 16);
style->FontSize = fs;
style->PrimaryColour = c1;
style->SecondaryColour = c1;
style->OutlineColour = c2;
style->BackColour = 0x00000000;
style->BorderStyle = 1;
style->Alignment = 2;
style->Outline = fs / 16;
style->MarginL = 10;
style->MarginR = 10;
style->MarginV = 5;
style->ScaleX = 1.;
style->ScaleY = 1.;
}
ass_process_force_style(track);
return track;
}
