mpcommon.c

   1 #include <stdlib.h>
   2 #include "stream/stream.h"
   3 #include "libmpdemux/demuxer.h"
   4 #include "libmpdemux/stheader.h"
   5 #include "mplayer.h"
   6 #include "libvo/sub.h"
   7 #include "libvo/video_out.h"
   8 #include "spudec.h"
   9 #include "vobsub.h"
  10
  11 double sub_last_pts = -303;
  12
  13 #ifdef USE_ASS
  14 #include "libass/ass.h"
  15 #include "libass/ass_mp.h"
  16 ass_track_t* ass_track = 0; // current track to render
  17 #endif
  18
  19 sub_data* subdata = NULL;
  20 subtitle* vo_sub_last = NULL;
  21
  22 void update_subtitles(sh_video_t *sh_video, demux_stream_t *d_dvdsub, int reset)
  23 {
  24     unsigned char *packet=NULL;
  25     int len;
  26     char type = d_dvdsub->sh ? ((sh_sub_t *)d_dvdsub->sh)->type : 'v';
  27     static subtitle subs;
  28     if (type == 'a')
  29 #ifdef USE_ASS
  30       if (!ass_enabled)
  31 #endif
  32       type = 't';
  33     if (reset) {
  34         sub_clear_text(&subs, MP_NOPTS_VALUE);
  35         if (vo_sub) {
  36             vo_sub = NULL;
  37             vo_osd_changed(OSDTYPE_SUBTITLE);
  38         }
  39         if (vo_spudec) {
  40             spudec_reset(vo_spudec);
  41             vo_osd_changed(OSDTYPE_SPU);
  42         }
  43     }
  44     // find sub
  45     if (subdata) {
  46         double pts = sh_video->pts;
  47         if (sub_fps==0) sub_fps = sh_video->fps;
  48         current_module = "find_sub";
  49         if (pts > sub_last_pts || pts < sub_last_pts-1.0) {
  50             find_sub(subdata, (pts+sub_delay) *
  51                      (subdata->sub_uses_time ? 100. : sub_fps));
  52             if (vo_sub) vo_sub_last = vo_sub;
  53             // FIXME! frame counter...
  54             sub_last_pts = pts;
  55         }
  56     }
  57
  58     // DVD sub:
  59     if (vo_config_count && vo_spudec && type == 'v') {
  60         int timestamp;
  61         current_module = "spudec";
  62         spudec_heartbeat(vo_spudec, 90000*sh_video->timer);
  63         /* Get a sub packet from the DVD or a vobsub and make a timestamp
  64          * relative to sh_video->timer */
  65         while(1) {
  66             // Vobsub
  67             len = 0;
  68             if (vo_vobsub) {
  69                 if (sh_video->pts+sub_delay >= 0) {
  70                     len = vobsub_get_packet(vo_vobsub, sh_video->pts+sub_delay,
  71                                             (void**)&packet, &timestamp);
  72                     if (len > 0) {
  73                         timestamp -= (sh_video->pts + sub_delay - sh_video->timer)*90000;
  74                         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);
  75                     }
  76                 }
  77             } else {
  78                 // DVD sub
  79                 len = ds_get_packet_sub(d_dvdsub, (unsigned char**)&packet);
  80                 if (len > 0) {
  81                     // XXX This is wrong, sh_video->pts can be arbitrarily
  82                     // much behind demuxing position. Unfortunately using
  83                     // d_video->pts which would have been the simplest
  84                     // improvement doesn't work because mpeg specific hacks
  85                     // in video.c set d_video->pts to 0.
  86                     float x = d_dvdsub->pts - sh_video->pts;
  87                     if (x > -20 && x < 20) // prevent missing subs on pts reset
  88                         timestamp = 90000*(sh_video->timer + d_dvdsub->pts
  89                                            + sub_delay - sh_video->pts);
  90                     else timestamp = 90000*(sh_video->timer + sub_delay);
  91                     mp_dbg(MSGT_CPLAYER, MSGL_V, "\rDVD sub: len=%d  "
  92                            "v_pts=%5.3f  s_pts=%5.3f  ts=%d \n", len,
  93                            sh_video->pts, d_dvdsub->pts, timestamp);
  94                 }
  95             }
  96             if (len<=0 || !packet) break;
  97             if (timestamp >= 0)
  98                 spudec_assemble(vo_spudec, packet, len, timestamp);
  99         }
 100
 101         if (spudec_changed(vo_spudec))
 102             vo_osd_changed(OSDTYPE_SPU);
 103     } else if (dvdsub_id >= 0 && type == 't') {
 104         double curpts = sh_video->pts + sub_delay;
 105         double endpts;
 106         vo_sub = &subs;
 107         while (d_dvdsub->first) {
 108             double pts = ds_get_next_pts(d_dvdsub);
 109             if (pts > curpts)
 110                 break;
 111             endpts = d_dvdsub->first->endpts;
 112             len = ds_get_packet_sub(d_dvdsub, &packet);
 113 #ifdef USE_ASS
 114             if (ass_enabled) {
 115                 static ass_track_t *global_ass_track = NULL;
 116                 if (!global_ass_track) global_ass_track = ass_default_track(ass_library);
 117                 ass_track = global_ass_track;
 118                 vo_sub = NULL;
 119                 if (pts != MP_NOPTS_VALUE) {
 120                     if (endpts == MP_NOPTS_VALUE) endpts = pts + 3;
 121                     sub_clear_text(&subs, MP_NOPTS_VALUE);
 122                     sub_add_text(&subs, packet, len, endpts);
 123                     subs.start = pts * 100;
 124                     subs.end = endpts * 100;
 125                     ass_process_subtitle(ass_track, &subs);
 126                 }
 127             } else
 128 #endif
 129                 if (pts != MP_NOPTS_VALUE) {
 130                     if (endpts == MP_NOPTS_VALUE)
 131                         sub_clear_text(&subs, MP_NOPTS_VALUE);
 132                     sub_add_text(&subs, packet, len, endpts);
 133                     vo_osd_changed(OSDTYPE_SUBTITLE);
 134                 }
 135         }
 136         if (sub_clear_text(&subs, curpts))
 137             vo_osd_changed(OSDTYPE_SUBTITLE);
 138     }
 139     current_module=NULL;
 140 }