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 #include "libavutil/intreadwrite.h"
  14
  15 double sub_last_pts = -303;
  16
  17 #ifdef USE_ASS
  18 #include "libass/ass.h"
  19 #include "libass/ass_mp.h"
  20 ass_track_t* ass_track = 0; // current track to render
  21 #endif
  22
  23 sub_data* subdata = NULL;
  24 subtitle* vo_sub_last = NULL;
  25
  26 void update_subtitles(sh_video_t *sh_video, demux_stream_t *d_dvdsub, int reset)
  27 {
  28     unsigned char *packet=NULL;
  29     int len;
  30     char type = d_dvdsub->sh ? ((sh_sub_t *)d_dvdsub->sh)->type : 'v';
  31     static subtitle subs;
  32     if (reset) {
  33         sub_clear_text(&subs, MP_NOPTS_VALUE);
  34         if (vo_sub) {
  35             vo_sub = NULL;
  36             vo_osd_changed(OSDTYPE_SUBTITLE);
  37         }
  38         if (vo_spudec) {
  39             spudec_reset(vo_spudec);
  40             vo_osd_changed(OSDTYPE_SPU);
  41         }
  42     }
  43     // find sub
  44     if (subdata) {
  45         double pts = sh_video->pts;
  46         if (sub_fps==0) sub_fps = sh_video->fps;
  47         current_module = "find_sub";
  48         if (pts > sub_last_pts || pts < sub_last_pts-1.0) {
  49             find_sub(subdata, (pts+sub_delay) *
  50                      (subdata->sub_uses_time ? 100. : sub_fps));
  51             if (vo_sub) vo_sub_last = vo_sub;
  52             // FIXME! frame counter...
  53             sub_last_pts = pts;
  54         }
  55     }
  56
  57     // DVD sub:
  58     if (vo_config_count && vo_spudec &&
  59         (vobsub_id >= 0 || (dvdsub_id >= 0 && 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 (vo_vobsub || 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' || type == 'm' || type == 'a')) {
 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             if (type == 'm') {
 114                 if (len < 2) continue;
 115                 len = FFMIN(len - 2, AV_RB16(packet));
 116                 packet += 2;
 117             }
 118 #ifdef USE_ASS
 119             if (ass_enabled) {
 120                 sh_sub_t* sh = d_dvdsub->sh;
 121                 ass_track = sh ? sh->ass_track : NULL;
 122                 if (!ass_track) continue;
 123                 if (type == 'a') { // ssa/ass subs with libass
 124                     ass_process_chunk(ass_track, packet, len,
 125                                       (long long)(pts*1000 + 0.5),
 126                                       (long long)((endpts-pts)*1000 + 0.5));
 127                 } else { // plaintext subs with libass
 128                     vo_sub = NULL;
 129                     if (pts != MP_NOPTS_VALUE) {
 130                         if (endpts == MP_NOPTS_VALUE) endpts = pts + 3;
 131                         sub_clear_text(&subs, MP_NOPTS_VALUE);
 132                         sub_add_text(&subs, packet, len, endpts);
 133                         subs.start = pts * 100;
 134                         subs.end = endpts * 100;
 135                         ass_process_subtitle(ass_track, &subs);
 136                     }
 137                 }
 138                 continue;
 139             }
 140 #endif
 141             if (pts != MP_NOPTS_VALUE) {
 142                 if (endpts == MP_NOPTS_VALUE)
 143                     sub_clear_text(&subs, MP_NOPTS_VALUE);
 144                 if (type == 'a') { // ssa/ass subs without libass => convert to plaintext
 145                     int i;
 146                     unsigned char* p = packet;
 147                     for (i=0; i < 8 && *p != '\0'; p++)
 148                         if (*p == ',')
 149                             i++;
 150                     if (*p == '\0')  /* Broken line? */
 151                         continue;
 152                     len -= p - packet;
 153                     packet = p;
 154                 }
 155                 sub_add_text(&subs, packet, len, endpts);
 156                 vo_osd_changed(OSDTYPE_SUBTITLE);
 157             }
 158         }
 159         if (sub_clear_text(&subs, curpts))
 160             vo_osd_changed(OSDTYPE_SUBTITLE);
 161     }
 162     current_module=NULL;
 163 }
 164
 165 void update_teletext(sh_video_t *sh_video, demuxer_t *demuxer, int reset)
 166 {
 167 #ifdef HAVE_TV_TELETEXT
 168     tvi_handle_t* tvh=demuxer->priv;
 169     int page_changed;
 170
 171     if (demuxer->type != DEMUXER_TYPE_TV || !tvh) return;
 172
 173     //Also forcing page update when such ioctl is not supported or call error occured
 174     if(tvh->functions->control(tvh->priv,TV_VBI_CONTROL_IS_CHANGED,&page_changed)!=TVI_CONTROL_TRUE)
 175         page_changed=1;
 176
 177     if(!page_changed)
 178         return;
 179
 180     if(tvh->functions->control(tvh->priv,TV_VBI_CONTROL_GET_VBIPAGE,&vo_osd_teletext_page)!=TVI_CONTROL_TRUE)
 181         vo_osd_teletext_page=NULL;
 182     if(tvh->functions->control(tvh->priv,TV_VBI_CONTROL_GET_HALF_PAGE,&vo_osd_teletext_half)!=TVI_CONTROL_TRUE)
 183         vo_osd_teletext_half=0;
 184     if(tvh->functions->control(tvh->priv,TV_VBI_CONTROL_GET_MODE,&vo_osd_teletext_mode)!=TVI_CONTROL_TRUE)
 185         vo_osd_teletext_mode=0;
 186     if(tvh->functions->control(tvh->priv,TV_VBI_CONTROL_GET_FORMAT,&vo_osd_teletext_format)!=TVI_CONTROL_TRUE)
 187         vo_osd_teletext_format=0;
 188     vo_osd_changed(OSDTYPE_TELETEXT);
 189
 190     tvh->functions->control(tvh->priv,TV_VBI_CONTROL_MARK_UNCHANGED,NULL);
 191 #endif
 192 }
 193
 194 int select_audio(demuxer_t* demuxer, int audio_id, char* audio_lang)
 195 {
 196     if (audio_id == -1 && audio_lang)
 197         audio_id = demuxer_audio_track_by_lang(demuxer, audio_lang);
 198     if (audio_id != -1) // -1 (automatic) is the default behaviour of demuxers
 199         demuxer_switch_audio(demuxer, audio_id);
 200     if (audio_id == -2) { // some demuxers don't yet know how to switch to no sound
 201         demuxer->audio->id = -2;
 202         demuxer->audio->sh = NULL;
 203     }
 204     return demuxer->audio->id;
 205 }