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 #ifdef HAVE_TV_TELETEXT
  11 #include "stream/tv.h"
  12 #endif
  13
  14 double sub_last_pts = -303;
  15
  16 #ifdef USE_ASS
  17 #include "libass/ass.h"
  18 #include "libass/ass_mp.h"
  19 ass_track_t* ass_track = 0; // current track to render
  20 #endif
  21
  22 sub_data* subdata = NULL;
  23 subtitle* vo_sub_last = NULL;
  24
  25 void update_subtitles(sh_video_t *sh_video, demux_stream_t *d_dvdsub, int reset)
  26 {
  27     unsigned char *packet=NULL;
  28     int len;
  29     char type = d_dvdsub->sh ? ((sh_sub_t *)d_dvdsub->sh)->type : 'v';
  30     static subtitle subs;
  31     if (reset) {
  32         sub_clear_text(&subs, MP_NOPTS_VALUE);
  33         if (vo_sub) {
  34             vo_sub = NULL;
  35             vo_osd_changed(OSDTYPE_SUBTITLE);
  36         }
  37         if (vo_spudec) {
  38             spudec_reset(vo_spudec);
  39             vo_osd_changed(OSDTYPE_SPU);
  40         }
  41     }
  42     // find sub
  43     if (subdata) {
  44         double pts = sh_video->pts;
  45         if (sub_fps==0) sub_fps = sh_video->fps;
  46         current_module = "find_sub";
  47         if (pts > sub_last_pts || pts < sub_last_pts-1.0) {
  48             find_sub(subdata, (pts+sub_delay) *
  49                      (subdata->sub_uses_time ? 100. : sub_fps));
  50             if (vo_sub) vo_sub_last = vo_sub;
  51             // FIXME! frame counter...
  52             sub_last_pts = pts;
  53         }
  54     }
  55
  56     // DVD sub:
  57     if (vo_config_count && vo_spudec &&
  58         (vobsub_id >= 0 || (dvdsub_id >= 0 && type == 'v'))) {
  59         int timestamp;
  60         current_module = "spudec";
  61         spudec_heartbeat(vo_spudec, 90000*sh_video->timer);
  62         /* Get a sub packet from the DVD or a vobsub and make a timestamp
  63          * relative to sh_video->timer */
  64         while(1) {
  65             // Vobsub
  66             len = 0;
  67             if (vo_vobsub) {
  68                 if (sh_video->pts+sub_delay >= 0) {
  69                     len = vobsub_get_packet(vo_vobsub, sh_video->pts+sub_delay,
  70                                             (void**)&packet, &timestamp);
  71                     if (len > 0) {
  72                         timestamp -= (sh_video->pts + sub_delay - sh_video->timer)*90000;
  73                         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);
  74                     }
  75                 }
  76             } else {
  77                 // DVD sub
  78                 len = ds_get_packet_sub(d_dvdsub, (unsigned char**)&packet);
  79                 if (len > 0) {
  80                     // XXX This is wrong, sh_video->pts can be arbitrarily
  81                     // much behind demuxing position. Unfortunately using
  82                     // d_video->pts which would have been the simplest
  83                     // improvement doesn't work because mpeg specific hacks
  84                     // in video.c set d_video->pts to 0.
  85                     float x = d_dvdsub->pts - sh_video->pts;
  86                     if (x > -20 && x < 20) // prevent missing subs on pts reset
  87                         timestamp = 90000*(sh_video->timer + d_dvdsub->pts
  88                                            + sub_delay - sh_video->pts);
  89                     else timestamp = 90000*(sh_video->timer + sub_delay);
  90                     mp_dbg(MSGT_CPLAYER, MSGL_V, "\rDVD sub: len=%d  "
  91                            "v_pts=%5.3f  s_pts=%5.3f  ts=%d \n", len,
  92                            sh_video->pts, d_dvdsub->pts, timestamp);
  93                 }
  94             }
  95             if (len<=0 || !packet) break;
  96             if (vo_vobsub || timestamp >= 0)
  97                 spudec_assemble(vo_spudec, packet, len, timestamp);
  98         }
  99
 100         if (spudec_changed(vo_spudec))
 101             vo_osd_changed(OSDTYPE_SPU);
 102     } else if (dvdsub_id >= 0 && (type == 't' || type == 'a')) {
 103         double curpts = sh_video->pts + sub_delay;
 104         double endpts;
 105         vo_sub = &subs;
 106         while (d_dvdsub->first) {
 107             double pts = ds_get_next_pts(d_dvdsub);
 108             if (pts > curpts)
 109                 break;
 110             endpts = d_dvdsub->first->endpts;
 111             len = ds_get_packet_sub(d_dvdsub, &packet);
 112 #ifdef USE_ASS
 113             if (type == 'a' && ass_enabled) { // ssa/ass subs with libass
 114                 sh_sub_t* sh = d_dvdsub->sh;
 115                 ass_track = sh ? sh->ass_track : NULL;
 116                 if (ass_track)
 117                     ass_process_chunk(ass_track, packet, len,
 118                                       (long long)(pts*1000 + 0.5),
 119                                       (long long)((endpts-pts)*1000 + 0.5));
 120                 continue;
 121             }
 122             if (type == 't' && ass_enabled) { // plaintext subs with libass
 123                 sh_sub_t* sh = d_dvdsub->sh;
 124                 ass_track = sh ? sh->ass_track : NULL;
 125                 vo_sub = NULL;
 126                 if (ass_track && pts != MP_NOPTS_VALUE) {
 127                     if (endpts == MP_NOPTS_VALUE) endpts = pts + 3;
 128                     sub_clear_text(&subs, MP_NOPTS_VALUE);
 129                     sub_add_text(&subs, packet, len, endpts);
 130                     subs.start = pts * 100;
 131                     subs.end = endpts * 100;
 132                     ass_process_subtitle(ass_track, &subs);
 133                 }
 134                 continue;
 135             }
 136 #endif
 137             if (pts != MP_NOPTS_VALUE) {
 138                 if (endpts == MP_NOPTS_VALUE)
 139                     sub_clear_text(&subs, MP_NOPTS_VALUE);
 140                 if (type == 'a') { // ssa/ass subs without libass => convert to plaintext
 141                     int i;
 142                     unsigned char* p = packet;
 143                     for (i=0; i < 8 && *p != '\0'; p++)
 144                         if (*p == ',')
 145                             i++;
 146                     if (*p == '\0')  /* Broken line? */
 147                         continue;
 148                     len -= p - packet;
 149                     packet = p;
 150                 }
 151                 sub_add_text(&subs, packet, len, endpts);
 152                 vo_osd_changed(OSDTYPE_SUBTITLE);
 153             }
 154         }
 155         if (sub_clear_text(&subs, curpts))
 156             vo_osd_changed(OSDTYPE_SUBTITLE);
 157     }
 158     current_module=NULL;
 159 }
 160
 161 void update_teletext(sh_video_t *sh_video, demuxer_t *demuxer, int reset)
 162 {
 163 #ifdef HAVE_TV_TELETEXT
 164     tvi_handle_t* tvh=demuxer->priv;
 165     int page_changed;
 166
 167     if (demuxer->type != DEMUXER_TYPE_TV || !tvh) return;
 168
 169     //Also forcing page update when such ioctl is not supported or call error occured
 170     if(tvh->functions->control(tvh->priv,TV_VBI_CONTROL_IS_CHANGED,&page_changed)!=TVI_CONTROL_TRUE)
 171         page_changed=1;
 172
 173     if(!page_changed)
 174         return;
 175
 176     if(tvh->functions->control(tvh->priv,TV_VBI_CONTROL_GET_VBIPAGE,&vo_osd_teletext_page)!=TVI_CONTROL_TRUE)
 177         vo_osd_teletext_page=NULL;
 178     if(tvh->functions->control(tvh->priv,TV_VBI_CONTROL_GET_HALF_PAGE,&vo_osd_teletext_half)!=TVI_CONTROL_TRUE)
 179         vo_osd_teletext_half=0;
 180     if(tvh->functions->control(tvh->priv,TV_VBI_CONTROL_GET_MODE,&vo_osd_teletext_mode)!=TVI_CONTROL_TRUE)
 181         vo_osd_teletext_mode=0;
 182     if(tvh->functions->control(tvh->priv,TV_VBI_CONTROL_GET_FORMAT,&vo_osd_teletext_format)!=TVI_CONTROL_TRUE)
 183         vo_osd_teletext_format=0;
 184     vo_osd_changed(OSDTYPE_TELETEXT);
 185
 186     tvh->functions->control(tvh->priv,TV_VBI_CONTROL_MARK_UNCHANGED,NULL);
 187 #endif
 188 }