mirror of https://github.com/mpv-player/mpv
110 lines
2.6 KiB
C
110 lines
2.6 KiB
C
#include <inttypes.h>
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#include <string.h>
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#include "ass.h"
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#include "ass_mp.h"
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// libass-related command line options
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int ass_enabled = 0;
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float ass_font_scale = 1.;
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float ass_line_spacing = 0.;
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int ass_top_margin = 0;
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int ass_bottom_margin = 0;
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int extract_embedded_fonts = 0;
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extern int font_fontconfig;
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extern char* font_name;
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extern float text_font_scale_factor;
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extern int subtitle_autoscale;
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extern double ass_internal_font_size_coeff;
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/**
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* \brief Convert subdata to ass_track
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* \param subdata subtitles struct from subreader
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* \param fps video framerate
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* \return newly allocated ass_track, filled with subtitles from subdata
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*/
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ass_track_t* ass_read_subdata(sub_data* subdata, double fps) {
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ass_track_t* track = ass_new_track();
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ass_style_t* style;
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ass_event_t* event;
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subtitle* sub;
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int sid, eid;
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int i;
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double fs;
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track->track_type = TRACK_TYPE_ASS;
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track->name = subdata->filename ? strdup(subdata->filename) : 0;
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track->Timer = 100.;
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track->PlayResX = 384;
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track->PlayResY = 288;
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track->WrapStyle = 0;
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sid = ass_alloc_style(track);
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style = track->styles + sid;
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style->Name = strdup("Default");
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style->FontName = font_fontconfig ? strdup(font_name) : strdup("Tahoma");
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fs = track->PlayResY * text_font_scale_factor / 100. / ass_internal_font_size_coeff;
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// approximate autoscale coefficients
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if (subtitle_autoscale == 2)
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fs *= 1.3;
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else if (subtitle_autoscale == 3)
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fs *= 1.4;
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style->FontSize = fs;
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style->PrimaryColour = 0xC0E9FE00;
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style->SecondaryColour = 0x1B429E00;
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style->OutlineColour = 0x1B429E00;
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style->BackColour = 0x00000000;
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style->BorderStyle = 1;
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style->Alignment = 2;
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style->Outline = 2;
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style->MarginL = 30;
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style->MarginR = 30;
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style->MarginV = 20;
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style->ScaleX = 1.;
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style->ScaleY = 1.;
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for (i = 0; i < subdata->sub_num; ++i) {
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int len = 0, j;
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char* p;
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char* end;
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sub = subdata->subtitles + i;
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eid = ass_alloc_event(track);
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event = track->events + eid;
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event->Start = sub->start * 10;
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event->Duration = (sub->end - sub->start) * 10;
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if (!subdata->sub_uses_time) {
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event->Start *= 100. / fps;
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event->Duration *= 100. / fps;
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}
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event->Style = sid;
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for (j = 0; j < sub->lines; ++j)
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len += sub->text[j] ? strlen(sub->text[j]) : 0;
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len += 2 * sub->lines; // '\N', including the one after the last line
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len += 6; // {\anX}
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len += 1; // '\0'
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event->Text = malloc(len);
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end = event->Text + len;
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p = event->Text;
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if (sub->alignment)
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p += snprintf(p, end - p, "{\\an%d}", sub->alignment);
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for (j = 0; j < sub->lines; ++j)
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p += snprintf(p, end - p, "%s ", sub->text[j]);
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p--; // remove last ' '
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*p = 0;
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}
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return track;
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}
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