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mpv/find_sub.c
Uoti Urpala 43b1de1dd7 core: move most mpcommon.c contents to mplayer.c
The contents of mpcommon.c were quite arbitrary; the most common
reason to place some functions in this file had been "MEncoder happens
to need similar code as MPlayer and we want to share some parts, but
we have no clue whatsoever how to organize things in a sensible way,
so we'll just dump those parts we want to share in mpcommon.c". As a
result of containing an essentially random subset of top-level player
functionality the mpcommon.h header required access to central structs
and was unsuitable for inclusion in lower-level code, but was
nonetheless included there for the mplayer_version symbol.

Move almost all contents from mpcommon.c to mplayer.c. mplayer.c is
already big and should perhaps be split further, but keeping a few
random functions in mpcommon.c would not be an improvement.
2011-01-15 18:45:43 +02:00

176 lines
5.2 KiB
C

/*
* .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"
#include "mplayer.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;
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);
}