libmpdemux/dvdnav_stream.c

   1 #include "config.h"
   2
   3 #ifdef USE_DVDNAV
   4 #include <dvdnav_internal.h>
   5 #include <stdlib.h>
   6 #include <stdio.h>
   7 #include <unistd.h>
   8 #include <string.h>
   9 #include "mp_msg.h"
  10 #include "osdep/timer.h"
  11 #include "input/input.h"
  12 #include "stream.h"
  13 #include "dvdnav_stream.h"
  14 #include "libvo/video_out.h"
  15 #include "spudec.h"
  16 #include "m_option.h"
  17 #include "m_struct.h"
  18
  19 static struct stream_priv_s {
  20   int track;
  21   char* device;
  22 } stream_priv_dflts = {
  23   1,
  24   NULL
  25 };
  26
  27 #define ST_OFF(f) M_ST_OFF(struct stream_priv_s,f)
  28 /// URL definition
  29 static m_option_t stream_opts_fields[] = {
  30   { NULL, NULL, 0, 0, 0, 0,  NULL }
  31 };
  32 static struct m_struct_st stream_opts = {
  33   "dvd",
  34   sizeof(struct stream_priv_s),
  35   &stream_priv_dflts,
  36   stream_opts_fields
  37 };
  38
  39 int dvd_nav_skip_opening=0;     /* skip opening stalls? */
  40 int osd_show_dvd_nav_delay=0;   /* count down for dvd nav text on OSD */
  41 char dvd_nav_text[50];          /* for reporting stuff to OSD */
  42 int osd_show_dvd_nav_highlight; /* show highlight area */
  43 int osd_show_dvd_nav_sx;        /* start x .... */
  44 int osd_show_dvd_nav_ex;
  45 int osd_show_dvd_nav_sy;
  46 int osd_show_dvd_nav_ey;
  47 int dvd_nav_still=0;            /* are we on a still picture? */
  48
  49 dvdnav_priv_t * new_dvdnav_stream(char * filename) {
  50   char * title_str;
  51   dvdnav_priv_t *dvdnav_priv;
  52
  53   if (!filename)
  54     return NULL;
  55
  56   if (!(dvdnav_priv=(dvdnav_priv_t*)calloc(1,sizeof(*dvdnav_priv))))
  57     return NULL;
  58
  59   if (!(dvdnav_priv->filename=strdup(filename))) {
  60     free(dvdnav_priv);
  61     return NULL;
  62   }
  63
  64   if(dvdnav_open(&(dvdnav_priv->dvdnav),dvdnav_priv->filename)!=DVDNAV_STATUS_OK)
  65   {
  66     free(dvdnav_priv->filename);
  67     free(dvdnav_priv);
  68     return NULL;
  69   }
  70
  71   if (!dvdnav_priv->dvdnav) {
  72     free(dvdnav_priv);
  73     return NULL;
  74   }
  75
  76   dvdnav_stream_ignore_timers(dvdnav_priv,dvd_nav_skip_opening);
  77
  78   /* turn on dvdnav caching */
  79   dvdnav_set_readahead_flag(dvdnav_priv->dvdnav,1);
  80
  81   /* report the title?! */
  82   if (dvdnav_get_title_string(dvdnav_priv->dvdnav,&title_str)==DVDNAV_STATUS_OK) {
  83     mp_msg(MSGT_OPEN,MSGL_INFO,"Title: '%s'\n",title_str);
  84   }
  85
  86   return dvdnav_priv;
  87 }
  88
  89 int dvdnav_stream_reset(dvdnav_priv_t * dvdnav_priv) {
  90   if (!dvdnav_priv) return 0;
  91
  92 //  if (dvdnav_reset(dvdnav_priv->dvdnav)!=DVDNAV_STATUS_OK)
  93     return 0;
  94
  95   dvdnav_priv->started=0;
  96
  97   return 1;
  98 }
  99
 100 void free_dvdnav_stream(dvdnav_priv_t * dvdnav_priv) {
 101   if (!dvdnav_priv) return;
 102
 103   dvdnav_close(dvdnav_priv->dvdnav);
 104   dvdnav_priv->dvdnav=NULL;
 105   free(dvdnav_priv);
 106 }
 107
 108 void dvdnav_stream_ignore_timers(dvdnav_priv_t * dvdnav_priv, int ignore) {
 109   if (!dvdnav_priv) return;
 110
 111   dvdnav_priv->ignore_timers=ignore;
 112 }
 113
 114 int dvdnav_stream_sleeping(dvdnav_priv_t * dvdnav_priv) {
 115     unsigned int now;
 116
 117     if (!dvdnav_priv) return 0;
 118
 119     if(dvdnav_priv->sleeping)
 120     {
 121       now=GetTimer();
 122       while(dvdnav_priv->sleeping>1 || now<dvdnav_priv->sleep_until) {
 123 //        printf("%s %u<%u\n",__FUNCTION__,now,dvdnav_priv->sleep_until);
 124 //        usec_sleep(1000); /* 1ms granularity */
 125         return 1;
 126       }
 127       dvdnav_still_skip(dvdnav_priv->dvdnav); // continue past...
 128       dvdnav_priv->sleeping=0;
 129       printf("%s: woke up!\n",__FUNCTION__);
 130     }
 131     dvd_nav_still=0;
 132     printf("%s: active\n",__FUNCTION__);
 133     return 0;
 134 }
 135
 136 void dvdnav_stream_sleep(dvdnav_priv_t * dvdnav_priv, int seconds) {
 137     if (!dvdnav_priv) return;
 138
 139     if (!dvdnav_priv->started) return;
 140
 141     dvdnav_priv->sleeping=0;
 142     switch (seconds) {
 143     case 0:
 144             return;
 145     case 0xff:
 146             printf( "Sleeping indefinately\n" );
 147             dvdnav_priv->sleeping=2;
 148             break;
 149     default:
 150             printf( "Sleeping %d sec(s)\n", seconds );
 151             dvdnav_priv->sleep_until = GetTimer();// + seconds*1000000;
 152             dvdnav_priv->sleeping=1;
 153             break;
 154     }
 155     //if (dvdnav_priv->started) dvd_nav_still=1;
 156 }
 157
 158 void dvdnav_stream_add_event(dvdnav_priv_t* dvdnav_priv, int event, unsigned char *buf, int len) {
 159   //printf("%s: %d\n",__FUNCTION__,event);
 160
 161   dvdnav_event_t * dvdnav_event;
 162   mp_cmd_t * cmd;
 163
 164   if (!dvdnav_priv->started) return;
 165
 166   if (!(dvdnav_event=(dvdnav_event_t*)calloc(1,sizeof(*dvdnav_event)))) {
 167     printf("%s: dvdnav_event: out of memory!\n",__FUNCTION__);
 168     return;
 169   }
 170   dvdnav_event->event=event;
 171   dvdnav_event->details=calloc(1,len);
 172   memcpy(dvdnav_event->details,buf,len);
 173   dvdnav_event->len=len;
 174
 175   if (!(cmd = (mp_cmd_t*)calloc(1,sizeof(*cmd)))) {
 176     printf("%s: mp_cmd_t: out of memory!\n",__FUNCTION__);
 177     free(dvdnav_event->details);
 178     free(dvdnav_event);
 179     return;
 180   }
 181   cmd->id=MP_CMD_DVDNAV_EVENT; // S+event;
 182   cmd->name=strdup("dvdnav_event"); // FIXME: do I really need a 'name'?
 183   cmd->nargs=1;
 184   cmd->args[0].v.v=dvdnav_event;
 185
 186   mp_input_queue_cmd(cmd);
 187 }
 188
 189 void dvdnav_stream_read(dvdnav_priv_t * dvdnav_priv, unsigned char *buf, int *len) {
 190   int event = DVDNAV_NOP;
 191
 192   if (!len) return;
 193   *len=-1;
 194   if (!dvdnav_priv) return;
 195   if (!buf) return;
 196
 197   if (dvd_nav_still) {
 198     printf("%s: got a stream_read while I should be asleep!\n",__FUNCTION__);
 199     *len=0;
 200     return;
 201   }
 202
 203   if (dvdnav_get_next_block(dvdnav_priv->dvdnav,buf,&event,len)!=DVDNAV_STATUS_OK) {
 204     printf( "Error getting next block from DVD (%s)\n",dvdnav_err_to_string(dvdnav_priv->dvdnav) );
 205     *len=-1;
 206   }
 207   else if (event!=DVDNAV_BLOCK_OK) {
 208
 209     // need to handle certain events internally (like skipping stills)
 210     switch (event) {
 211     case DVDNAV_STILL_FRAME: {
 212       dvdnav_still_event_t *still_event = (dvdnav_still_event_t*)(buf);
 213
 214       printf("************************************************************ STILL \n");
 215
 216       //if (dvdnav_priv->started) dvd_nav_still=1;
 217       //else
 218         dvdnav_still_skip(dvdnav_priv->dvdnav); // don't let dvdnav stall on this image
 219
 220       break;
 221     }
 222     }
 223
 224     // got an event, repeat the read
 225     dvdnav_stream_add_event(dvdnav_priv,event,buf,*len);
 226     *len=0;
 227   }
 228 //  printf("%s: got %d\n",__FUNCTION__,*len);
 229 }
 230
 231 void dvdnav_stream_fullstart(dvdnav_priv_t * dvdnav_priv) {
 232   if (dvdnav_priv && !dvdnav_priv->started) {
 233     dvdnav_stream_reset(dvdnav_priv);
 234     dvdnav_priv->started=1;
 235   }
 236 }
 237
 238 unsigned int * dvdnav_stream_get_palette(dvdnav_priv_t * dvdnav_priv) {
 239   if (!dvdnav_priv) {
 240     printf("%s: NULL dvdnav_priv\n",__FUNCTION__);
 241     return NULL;
 242   }
 243   if (!dvdnav_priv->dvdnav) {
 244     printf("%s: NULL dvdnav_priv->dvdnav\n",__FUNCTION__);
 245     return NULL;
 246   }
 247   if (!dvdnav_priv->dvdnav->vm) {
 248     printf("%s: NULL dvdnav_priv->dvdnav->vm\n",__FUNCTION__);
 249     return NULL;
 250   }
 251   if (!dvdnav_priv->dvdnav->vm->state.pgc) {
 252     printf("%s: NULL dvdnav_priv->dvdnav->vm->state.pgc\n",__FUNCTION__);
 253     return NULL;
 254   }
 255   return dvdnav_priv->dvdnav->vm->state.pgc->palette;
 256 }
 257
 258
 259 static int seek(stream_t *s, off_t newpos) {
 260   if(newpos==0) {
 261     if(dvdnav_stream_reset((dvdnav_priv_t*)s->priv))
 262       s->pos=0;
 263   }
 264   if(newpos!=s->pos)
 265     mp_msg(MSGT_STREAM,MSGL_INFO,"Cannot seek in DVDNAV streams yet!\n");
 266
 267   return 1;
 268 }
 269
 270 static void stream_dvd_close(stream_t *s) {
 271   dvd_close(s->priv);
 272 }
 273
 274 static int open_s(stream_t *stream,int mode, void* opts, int* file_format) {
 275   struct stream_priv_s* p = (struct stream_priv_s*)opts;
 276   char *filename, *name;
 277   int event,len,tmplen=0;
 278   dvdnav_priv_t *dvdnav_priv;
 279
 280   mp_msg(MSGT_OPEN,MSGL_INFO,"URL: %s\n", filename);
 281   filename = strdup(stream->url);
 282   name = (filename[9] == '\0') ? NULL : filename + 9;
 283   if(!name) name=DEFAULT_DVD_DEVICE;
 284   if(!(dvdnav_priv=new_dvdnav_stream(name))) {
 285     mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_CantOpenDVD,name);
 286     return STREAM_UNSUPORTED;
 287   }
 288
 289   stream->sector_size = 2048;
 290   stream->flags = STREAM_READ | STREAM_SEEK;
 291   stream->fill_buffer = fill_buffer;
 292   stream->seek = seek;
 293   stream->close = stream_dvd_close;
 294   stream->type = STREAMTYPE_DVDNAV;
 295   stream->priv=(void*)dvdnav_priv;
 296
 297   return STREAM_OK;
 298 }
 299
 300 stream_info_t stream_info_dvdnav = {
 301   "DVDNAV stream",
 302   "null",
 303   "",
 304   "",
 305   open_s,
 306   { "dvdnav", NULL },
 307   &stream_opts,
 308   1 // Urls are an option string
 309 };
 310
 311 #endif /* USE_DVDNAV */