/**
* \brief Convert subdata to ASS_Track
* \param subdata subtitles struct from subreader
* \param fps video framerate
* \return newly allocated ASS_Track, filled with subtitles from subdata
*/
ASS_Track* ass_read_subdata(ASS_Library* library, sub_data* subdata, double fps) {
ASS_Track* track;
int i;
track = ass_default_track(library);
track->name = subdata->filename ? strdup(subdata->filename) : 0;
for (i = 0; i < subdata->sub_num; ++i) {
int eid = ass_process_subtitle(track, subdata->subtitles + i);
if (eid < 0)
continue;
if (!subdata->sub_uses_time) {
track->events[eid].Start *= 100. / fps;
track->events[eid].Duration *= 100. / fps;
}
}
return track;
}
void update_subtitles(sh_video_t *sh_video, demux_stream_t *d_dvdsub, int reset)
{
unsigned char *packet=NULL;
int len;
char type = d_dvdsub->sh ? ((sh_sub_t *)d_dvdsub->sh)->type : 'v';
static subtitle subs;
if (type == 'a')
#ifdef USE_ASS
if (!ass_enabled)
#endif
type = 't';
if (reset) {
sub_clear_text(&subs, MP_NOPTS_VALUE);
if (vo_sub) {
vo_sub = NULL;
vo_osd_changed(OSDTYPE_SUBTITLE);
}
if (vo_spudec) {
spudec_reset(vo_spudec);
vo_osd_changed(OSDTYPE_SPU);
}
}
// find sub
if (subdata) {
double pts = sh_video->pts;
if (sub_fps==0) sub_fps = sh_video->fps;
current_module = "find_sub";
if (pts > sub_last_pts || pts < sub_last_pts-1.0) {
find_sub(subdata, (pts+sub_delay) *
(subdata->sub_uses_time ? 100. : sub_fps));
if (vo_sub) vo_sub_last = vo_sub;
// FIXME! frame counter...
sub_last_pts = pts;
}
}
// DVD sub:
if (vo_config_count && vo_spudec && type == 'v') {
int timestamp;
current_module = "spudec";
spudec_heartbeat(vo_spudec, 90000*sh_video->timer);
/* Get a sub packet from the DVD or a vobsub and make a timestamp
* relative to sh_video->timer */
while(1) {
// Vobsub
len = 0;
if (vo_vobsub) {
if (sh_video->pts+sub_delay >= 0) {
len = vobsub_get_packet(vo_vobsub, sh_video->pts+sub_delay,
(void**)&packet, ×tamp);
if (len > 0) {
timestamp -= (sh_video->pts + sub_delay - sh_video->timer)*90000;
mp_dbg(MSGT_CPLAYER,MSGL_V,"\rVOB sub: len=%d v_pts=%5.3f v_timer=%5.3f sub=%5.3f ts=%d \n",len,sh_video->pts,sh_video->timer,timestamp / 90000.0,timestamp);
}
}
} else {
// DVD sub
len = ds_get_packet_sub(d_dvdsub, (unsigned char**)&packet);
if (len > 0) {
// XXX This is wrong, sh_video->pts can be arbitrarily
// much behind demuxing position. Unfortunately using
// d_video->pts which would have been the simplest
// improvement doesn't work because mpeg specific hacks
// in video.c set d_video->pts to 0.
float x = d_dvdsub->pts - sh_video->pts;
if (x > -20 && x < 20) // prevent missing subs on pts reset
timestamp = 90000*(sh_video->timer + d_dvdsub->pts
+ sub_delay - sh_video->pts);
else timestamp = 90000*(sh_video->timer + sub_delay);
mp_dbg(MSGT_CPLAYER, MSGL_V, "\rDVD sub: len=%d "
"v_pts=%5.3f s_pts=%5.3f ts=%d \n", len,
sh_video->pts, d_dvdsub->pts, timestamp);
}
}
if (len<=0 || !packet) break;
if (timestamp >= 0)
spudec_assemble(vo_spudec, packet, len, timestamp);
}
if (spudec_changed(vo_spudec))
vo_osd_changed(OSDTYPE_SPU);
} else if (dvdsub_id >= 0 && type == 't') {
double curpts = sh_video->pts + sub_delay;
double endpts;
vo_sub = &subs;
while (d_dvdsub->first) {
double pts = ds_get_next_pts(d_dvdsub);
if (pts > curpts)
break;
endpts = d_dvdsub->first->endpts;
len = ds_get_packet_sub(d_dvdsub, &packet);
#ifdef USE_ASS
if (ass_enabled) {
static ass_track_t *global_ass_track = NULL;
if (!global_ass_track) global_ass_track = ass_default_track(ass_library);
ass_track = global_ass_track;
vo_sub = NULL;
if (pts != MP_NOPTS_VALUE) {
if (endpts == MP_NOPTS_VALUE) endpts = pts + 3;
sub_clear_text(&subs, MP_NOPTS_VALUE);
sub_add_text(&subs, packet, len, endpts);
subs.start = pts * 100;
subs.end = endpts * 100;
ass_process_subtitle(ass_track, &subs);
}
} else
#endif
if (pts != MP_NOPTS_VALUE) {
if (endpts == MP_NOPTS_VALUE)
sub_clear_text(&subs, MP_NOPTS_VALUE);
sub_add_text(&subs, packet, len, endpts);
vo_osd_changed(OSDTYPE_SUBTITLE);
}
}
if (sub_clear_text(&subs, curpts))
vo_osd_changed(OSDTYPE_SUBTITLE);
}
current_module=NULL;
}
