stream_dvdnav.c

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#include "config.h"

#include <mplaylib.h>
#include <mplaylib.h>
#include <mplaylib.h>
#include <mplaylib.h>
#include "mp_msg.h"
#include "osdep/timer.h"
#include "input/input.h"
#include "stream.h"
#include "libmpdemux/demuxer.h"
#include "stream_dvdnav.h"
#include "libvo/video_out.h"
#include "libavutil/common.h"
#include "spudec.h"
#include "m_option.h"
#include "m_struct.h"
#include "help_mp.h"
#undef memcpy
#define memcpy uc_memcpy
extern char *dvd_device;
extern int dvd_chapter;
extern int dvd_last_chapter;
extern int dvd_angle;
extern char *audio_lang, *dvdsub_lang;

static struct stream_priv_s {
  int track;
  char* device;
} stream_priv_dflts = {
  0,
  NULL
};

#define ST_OFF(f) M_ST_OFF(struct stream_priv_s,f)
/// URL definition
static m_option_t stream_opts_fields[] = {
  {"filename", 	ST_OFF(device), CONF_TYPE_STRING, 0, 0, 0, NULL },
  {"hostname", 	ST_OFF(track), CONF_TYPE_INT, 0, 0, 0, NULL},
  { NULL, NULL, 0, 0, 0, 0,  NULL }
};
static struct m_struct_st stream_opts = {
  "dvd",
  sizeof(struct stream_priv_s),
  &stream_priv_dflts,
  stream_opts_fields
};

static int seek(stream_t *s, off_t newpos);

static dvdnav_priv_t * new_dvdnav_stream(char * filename) {
  char * title_str;
  dvdnav_priv_t *priv;

  if (!filename)
    return NULL;

  if (!(priv=calloc(1,sizeof(dvdnav_priv_t))))
    return NULL;

  if (!(priv->filename=strdup(filename))) {
    free(priv);
    return NULL;
  }

  if(dvdnav_open(&(priv->dvdnav),priv->filename)!=DVDNAV_STATUS_OK)
  {
    free(priv->filename);
    free(priv);
    return NULL;
  }

  if (!priv->dvdnav) {
    free(priv);
    return NULL;
  }

  if(1)	//from vlc: if not used dvdnav from cvs will fail
  {
    int len, event;
    char buf[2048];

    dvdnav_get_next_block(priv->dvdnav,buf,&event,&len);
    dvdnav_sector_search(priv->dvdnav, 0, SEEK_SET);
  }

  /* turn off dvdnav caching */
  dvdnav_set_readahead_flag(priv->dvdnav, 0);
  if(dvdnav_set_PGC_positioning_flag(priv->dvdnav, 1) != DVDNAV_STATUS_OK)
    mp_msg(MSGT_OPEN,MSGL_ERR,"stream_dvdnav, failed to set PGC positioning\n");
#if 1
  /* report the title?! */
  if (dvdnav_get_title_string(priv->dvdnav,&title_str)==DVDNAV_STATUS_OK) {
    mp_msg(MSGT_IDENTIFY, MSGL_INFO,"Title: '%s'\n",title_str);
  }
#endif

  //dvdnav_event_clear(priv);

  return priv;
}

static void dvdnav_get_highlight (dvdnav_priv_t *priv, int display_mode) {
  pci_t *pnavpci = NULL;
  dvdnav_highlight_event_t *hlev = &(priv->hlev);
  int btnum;

  if (!priv || !priv->dvdnav)
    return;

  pnavpci = dvdnav_get_current_nav_pci (priv->dvdnav);
  if (!pnavpci)
    return;

  dvdnav_get_current_highlight (priv->dvdnav, &(hlev->buttonN));
  hlev->display = display_mode; /* show */

  if (hlev->buttonN > 0 && pnavpci->hli.hl_gi.btn_ns > 0 && hlev->display) {
    for (btnum = 0; btnum < pnavpci->hli.hl_gi.btn_ns; btnum++) {
      btni_t *btni = &(pnavpci->hli.btnit[btnum]);

      if (hlev->buttonN == btnum + 1) {
        hlev->sx = FFMIN (btni->x_start, btni->x_end);
        hlev->ex = FFMAX (btni->x_start, btni->x_end);
        hlev->sy = FFMIN (btni->y_start, btni->y_end);
        hlev->ey = FFMAX (btni->y_start, btni->y_end);

        hlev->palette = (btni->btn_coln == 0) ? 0 :
          pnavpci->hli.btn_colit.btn_coli[btni->btn_coln - 1][0];
        break;
      }
    }
  } else { /* hide button or no button */
    hlev->sx = hlev->ex = 0;
    hlev->sy = hlev->ey = 0;
    hlev->palette = hlev->buttonN = 0;
  }
}

static int dvdnav_stream_read(dvdnav_priv_t * priv, unsigned char *buf, int *len) {
  int event = DVDNAV_NOP;

  if (!len) return -1;
  *len=-1;
  if (!priv) return -1;
  if (!buf) return -1;

  if (dvdnav_get_next_block(priv->dvdnav,buf,&event,len)!=DVDNAV_STATUS_OK) {
    mp_msg(MSGT_OPEN,MSGL_V, "Error getting next block from DVD %d (%s)\n",event, dvdnav_err_to_string(priv->dvdnav) );
    *len=-1;
  }
  else if (event!=DVDNAV_BLOCK_OK) {
    // need to handle certain events internally (like skipping stills)
    switch (event) {
      case DVDNAV_NAV_PACKET:
        return event;
      case DVDNAV_STILL_FRAME: {
        dvdnav_still_skip(priv->dvdnav); // don't let dvdnav stall on this image
        break;
      }
      case DVDNAV_HIGHLIGHT: {
        dvdnav_get_highlight (priv, 1);
        break;
      }
      case DVDNAV_CELL_CHANGE: {
        dvdnav_cell_change_event_t *ev =  (dvdnav_cell_change_event_t*)buf;
        if(ev->pgc_length)
          priv->duration = ev->pgc_length/90;
        break;
      }
      case DVDNAV_SPU_CLUT_CHANGE: {
        memcpy(priv->spu_clut, buf, 16*sizeof(unsigned int));
        priv->spu_set = 1;
        break;
      }
      case DVDNAV_WAIT:
        dvdnav_wait_skip(priv->dvdnav);
        break;
    }

    *len=0;
  }
  return event;
}

static void update_title_len(stream_t *stream) {
  dvdnav_priv_t *priv = stream->priv;
  dvdnav_status_t status;
  uint32_t pos = 0, len = 0;

  status = dvdnav_get_position(priv->dvdnav, &pos, &len);
  if(status == DVDNAV_STATUS_OK && len) {
    stream->end_pos = (off_t) len * 2048;
    stream->seek = seek;
  } else {
    stream->seek = NULL;
    stream->end_pos = 0;
  }
}


static int seek(stream_t *s, off_t newpos) {
  uint32_t sector = 0;
  dvdnav_priv_t *priv = s->priv;

  if(s->end_pos && newpos > s->end_pos) 
     newpos = s->end_pos;
  sector = newpos / 2048ULL;
  if(dvdnav_sector_search(priv->dvdnav, (uint64_t) sector, SEEK_SET) != DVDNAV_STATUS_OK)
    goto fail;

  s->pos = newpos;

  return 1;

fail:
  mp_msg(MSGT_STREAM,MSGL_INFO,"dvdnav_stream, seeking to %"PRIu64" failed: %s\n", newpos, dvdnav_err_to_string(priv->dvdnav));

  return 1;
}

static void stream_dvdnav_close(stream_t *s) {
  dvdnav_priv_t *priv = s->priv;
  dvdnav_close(priv->dvdnav);
  priv->dvdnav = NULL;
  free(priv);
}


static int fill_buffer(stream_t *s, char *but, int len)
{
    int event;

    dvdnav_priv_t* priv=s->priv;
    len=0;
    if(!s->end_pos)
      update_title_len(s);
    while(!len) /* grab all event until DVDNAV_BLOCK_OK (len=2048), DVDNAV_STOP or DVDNAV_STILL_FRAME */
    {
      event=dvdnav_stream_read(priv, s->buffer, &len);
      if(event==-1 || len==-1)
      {
        mp_msg(MSGT_CPLAYER,MSGL_ERR, "DVDNAV stream read error!\n");
        return 0;
      }
      switch (event) {
        case DVDNAV_STOP:
        case DVDNAV_BLOCK_OK:
        case DVDNAV_NAV_PACKET:
          return len;
        case DVDNAV_VTS_CHANGE: {
          int tit = 0, part = 0;
          dvdnav_vts_change_event_t *vts_event = (dvdnav_vts_change_event_t *)s->buffer;
          mp_msg(MSGT_CPLAYER,MSGL_INFO, "DVDNAV, switched to title: %d\r\n", vts_event->new_vtsN);
          s->end_pos = 0;
          update_title_len(s);
          if(dvdnav_current_title_info(priv->dvdnav, &tit, &part) == DVDNAV_STATUS_OK) {
            mp_msg(MSGT_CPLAYER,MSGL_V, "\r\nDVDNAV, NEW TITLE %d\r\n", tit);
            dvdnav_get_highlight (priv, 0);
            if(priv->title > 0 && tit != priv->title)
              return 0;
          }
          break;
        }
        case DVDNAV_CELL_CHANGE: {
          if(priv->title > 0 && dvd_last_chapter > 0) {
            int tit=0, part=0;
            if(dvdnav_current_title_info(priv->dvdnav, &tit, &part) == DVDNAV_STATUS_OK && part > dvd_last_chapter)
              return 0;
            }
        }
        break;
      }
  }
  mp_msg(MSGT_STREAM,MSGL_DBG2,"DVDNAV fill_buffer len: %d\n",len);
  return len;
}

static int control(stream_t *stream, int cmd, void* arg) {
  dvdnav_priv_t* priv=stream->priv;
  int tit, part;

  switch(cmd) 
  {
    case STREAM_CTRL_SEEK_TO_CHAPTER:
    {
      int chap = *((unsigned int *)arg)+1;

      if(chap < 1 || dvdnav_current_title_info(priv->dvdnav, &tit, &part) != DVDNAV_STATUS_OK)
        break;
      if(dvdnav_part_play(priv->dvdnav, tit, chap) != DVDNAV_STATUS_OK)
        break;
      return 1;
    }
    case STREAM_CTRL_GET_NUM_CHAPTERS:
    {
      if(dvdnav_current_title_info(priv->dvdnav, &tit, &part) != DVDNAV_STATUS_OK)
        break;
      if(dvdnav_get_number_of_parts(priv->dvdnav, tit, &part) != DVDNAV_STATUS_OK)
        break;
      if(!part)
        break;
      *((unsigned int *)arg) = part;
      return 1;
    }
    case STREAM_CTRL_GET_CURRENT_CHAPTER:
    {
      if(dvdnav_current_title_info(priv->dvdnav, &tit, &part) != DVDNAV_STATUS_OK)
        break;
      *((unsigned int *)arg) = part - 1;
      return 1;
    }
    case STREAM_CTRL_GET_TIME_LENGTH:
    {
      if(priv->duration)
      {
        *((double *)arg) = (double)priv->duration / 1000.0;
        return 1;
      }
      break;
    }
    case STREAM_CTRL_GET_ASPECT_RATIO:
    {
      uint8_t ar = dvdnav_get_video_aspect(priv->dvdnav);
      *((double *)arg) = !ar ? 4.0/3.0 : 16.0/9.0;
      return 1;
    }
#ifdef MP_DVDNAV
    case STREAM_CTRL_GET_CURRENT_TIME:
    {