diff options
Diffstat (limited to 'sub/find_sub.c')
| -rw-r--r-- | sub/find_sub.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/sub/find_sub.c b/sub/find_sub.c new file mode 100644 index 0000000000..97c232b1db --- /dev/null +++ b/sub/find_sub.c @@ -0,0 +1,175 @@ +/* + * .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 "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); +} |