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/*
* .SUB
*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <stdio.h>
#include "libvo/video_out.h"
#include "libvo/sub.h"
#include "subreader.h"
#include "mp_msg.h"
#include "mpcommon.h"
static int current_sub=0;
//static subtitle* subtitles=NULL;
static int nosub_range_start=-1;
static int nosub_range_end=-1;
static const sub_data *last_sub_data = NULL;
extern float sub_delay;
extern float sub_fps;
void step_sub(sub_data *subd, float pts, int movement) {
subtitle *subs;
int key;
if (subd == NULL) return;
subs = subd->subtitles;
key = (pts+sub_delay) * (subd->sub_uses_time ? 100 : sub_fps);
/* Tell the OSD subsystem that the OSD contents will change soon */
vo_osd_changed(OSDTYPE_SUBTITLE);
/* If we are moving forward, don't count the next (current) subtitle
* if we haven't displayed it yet. Same when moving other direction.
*/
if (movement > 0 && key < subs[current_sub].start)
movement--;
if (movement < 0 && key >= subs[current_sub].end)
movement++;
/* Never move beyond first or last subtitle. */
if (current_sub+movement < 0)
movement = 0-current_sub;
if (current_sub+movement >= subd->sub_num)
movement = subd->sub_num - current_sub - 1;
current_sub += movement;
sub_delay = subs[current_sub].start / (subd->sub_uses_time ? 100 : sub_fps) - pts;
}
void find_sub(struct MPContext *mpctx, sub_data* subd,int key){
subtitle *subs;
subtitle *new_sub = NULL;
int i,j;
if ( !subd || subd->sub_num == 0) return;
subs = subd->subtitles;
if (last_sub_data != subd) {
// Sub data changed, reset nosub range.
last_sub_data = subd;
nosub_range_start = -1;
nosub_range_end = -1;
}
if(vo_sub){
if(key>=vo_sub->start && key<=vo_sub->end) return; // OK!
} else {
if(key>nosub_range_start && key<nosub_range_end) return; // OK!
}
// sub changed!
/* Tell the OSD subsystem that the OSD contents will change soon */
vo_osd_changed(OSDTYPE_SUBTITLE);
if(key<=0){
// no sub here
goto update;
}
// printf("\r---- sub changed ----\n");
// check next sub.
if(current_sub>=0 && current_sub+1 < subd->sub_num){
if(key>subs[current_sub].end && key<subs[current_sub+1].start){
// no sub
nosub_range_start=subs[current_sub].end;
nosub_range_end=subs[current_sub+1].start;
goto update;
}
// next sub?
++current_sub;
new_sub=&subs[current_sub];
if(key>=new_sub->start && key<=new_sub->end) goto update; // OK!
}
// printf("\r---- sub log search... ----\n");
// use logarithmic search:
i=0;
j = subd->sub_num - 1;
// printf("Searching %d in %d..%d\n",key,subs[i].start,subs[j].end);
while(j>=i){
current_sub=(i+j+1)/2;
new_sub=&subs[current_sub];
if(key<new_sub->start) j=current_sub-1;
else if(key>new_sub->end) i=current_sub+1;
else goto update; // found!
}
// if(key>=new_sub->start && key<=new_sub->end) return; // OK!
// check where are we...
if(key<new_sub->start){
if(current_sub<=0){
// before the first sub
nosub_range_start=key-1; // tricky
nosub_range_end=new_sub->start;
// printf("FIRST... key=%d end=%d \n",key,new_sub->start);
new_sub=NULL;
goto update;
}
--current_sub;
if(key>subs[current_sub].end && key<subs[current_sub+1].start){
// no sub
nosub_range_start=subs[current_sub].end;
nosub_range_end=subs[current_sub+1].start;
// printf("No sub... 1 \n");
new_sub=NULL;
goto update;
}
printf("HEH???? ");
} else {
if(key<=new_sub->end) printf("JAJJ! "); else
if(current_sub+1 >= subd->sub_num){
// at the end?
nosub_range_start=new_sub->end;
nosub_range_end=0x7FFFFFFF; // MAXINT
// printf("END!?\n");
new_sub=NULL;
goto update;
} else
if(key>subs[current_sub].end && key<subs[current_sub+1].start){
// no sub
nosub_range_start=subs[current_sub].end;
nosub_range_end=subs[current_sub+1].start;
// printf("No sub... 2 \n");
new_sub=NULL;
goto update;
}
}
mp_msg(MSGT_FIXME,MSGL_FIXME,"SUB ERROR: %d ? %d --- %d [%d] \n",key,(int)new_sub->start,(int)new_sub->end,current_sub);
new_sub=NULL; // no sub here
update:
set_osd_subtitle(mpctx, new_sub);
}
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