diff options
Diffstat (limited to 'find_sub.c')
| -rw-r--r-- | find_sub.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/find_sub.c b/find_sub.c index 2682b99c8c..6ee327cf48 100644 --- a/find_sub.c +++ b/find_sub.c @@ -18,6 +18,35 @@ static int current_sub=0; static int nosub_range_start=-1; static int nosub_range_end=-1; +extern float sub_delay; + +void step_sub(subtitle *subtitles, float pts, int movement) { + int key = sub_uses_time ? (100*(pts+sub_delay)) : ((pts+sub_delay)*sub_fps); + + if (subtitles == NULL) + return; + + /* 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 < subtitles[current_sub].start) + movement--; + if (movement < 0 && key >= subtitles[current_sub].end) + movement++; + + /* Never move beyond first or last subtitle. */ + if (current_sub+movement < 0) + movement = 0-current_sub; + if (current_sub+movement >= sub_num) + movement = sub_num-current_sub-1; + + current_sub += movement; + sub_delay = subtitles[current_sub].start/(sub_uses_time ? 100 : sub_fps) - pts; +} + void find_sub(subtitle* subtitles,int key){ int i,j; |