X-Git-Url: http://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.0%2Flibzmpeg3%2Fdvb.C;fp=cinelerra-5.0%2Flibzmpeg3%2Fdvb.C;h=0000000000000000000000000000000000000000;hb=30bdb85eb33a8ee7ba675038a86c6be59c43d7bd;hp=d1a9ad2409ea154164878777b2e8017419580d78;hpb=52fcc46226f9df46f9ce9d0566dc568455a7db0b;p=goodguy%2Fhistory.git

diff --git a/cinelerra-5.0/libzmpeg3/dvb.C b/cinelerra-5.0/libzmpeg3/dvb.C
deleted file mode 100644
index d1a9ad24..00000000
--- a/cinelerra-5.0/libzmpeg3/dvb.C
+++ /dev/null
@@ -1,1071 +0,0 @@
-#include "libzmpeg3.h"
-#include "huf.h"
-
-#ifdef ZDVB
-
-//#define DEBUG
-
-#ifdef DEBUG
-static const char *desc_name1[] = {
-/* 00 */  0,
-/* 01 */  0,
-/* 02 */  "video_stream_descr",
-/* 03 */  "audio_stream_descr",
-/* 04 */  "hierarchy_descr",
-/* 05 */  "registration_descr",
-/* 06 */  "data_stream_align_descr",
-/* 07 */  "target_background_grid_descr",
-/* 08 */  "video_window_descr",
-/* 09 */  "CA_descr",
-/* 0a */  "ISO_639_lang_descr",
-/* 0b */  "syst_clk_descr",
-/* 0c */  "multiplex_buf_utilization_descr",
-/* 0d */  "copyright_descr",
-/* 0e */  "max_bitrate_descr",
-/* 0f */  "private_data_indicator_descr",
-/* 10 */  "smoothing_buf_descr",
-/* 11 */  "STD_descr",
-/* 12 */  "IBP_descr",
-/* 13 */ 0,
-/* 14 */ "assoc_tag_descr",
-};
-
-static const char *desc_name2[] = {
-/* 80 */  "stuffing_descr",
-/* 81 */  "AC-3 audio descr",
-/* 82 */ 0, 0, 0, 0, /* - 85 */
-/* 86 */ "caption_serv_descr",
-/* 87 */ "content_advisory_descr",
-/* 88 */ 0, 0, 0, 0, 0, 0, 0, 0, /* - 8f */
-/* 90 */ 0, 0, 0, 0, 0, 0, 0, 0, /* - 97 */
-/* 98 */ 0, 0, 0, 0, 0, 0, 0, 0, /* - 9f */
-/* a0 */ "extended_ch_name_descr",
-/* a1 */ "serv_location_descr",
-/* a2 */ "time_shifted_serv_descr",
-/* a3 */ "component_name_descr",
-/* a4 */ "data_service_descr",
-/* a5 */ "PID_count_descr",
-/* a6 */ "Download_descr",
-/* a7 */ "multiprotocol_encapsulate_descr",
-/* a8 */ "DCC_departing_event_descr",
-/* a9 */ "DCC_arriving_event_descr",
-/* aa */ "Content_Protect_Copy_Mngt_descr",
-/* ab */ 0, 0, 0, 0, 0, 0, 0, 0, 0, /* - b3 */
-/* b4 */ "Module_Link_descr",
-/* b5 */ "CRC32_descr",
-/* b6 */ 0, 0, /* - b7 */
-/* b8 */ "Group_Link_descr",
-};
-
-/* print descr tag info */
-
-static void prt_descr(uint32_t tag, int len)
-{
-  int n;
-  const char *nm = 0;
-  printf("descr tag/len=0x%02x/%u (", tag, len);
-  if( tag < lengthof(desc_name1) )
-    nm = desc_name1[tag];
-  else if( (n=tag-0x80) >= 0 && n<=lengthof(desc_name2) )
-    nm = desc_name2[n];
-  if( nm == 0 ) nm = "n/a";
-  printf("%s)\n",nm);
-}
-
-static void prt_vct(zvct_t *vct)
-{
-  printf("VCT table -\n");
-  printf(" ver=0x%04x\n", vct->version);
-  printf(" items=0x%04x\n", vct->items);
-  printf(" ts_stream_id=0x%04x\n", vct->transport_stream_id);
-  for( int i=0; i<vct->items; ++i ) {
-    zvitem_t *item = vct->vct_tbl[i];
-    printf(" %2d. name= ", i);
-    for( int j=0; j<7; ++j ) {
-      int ch = item->short_name[j];
-      printf("%c", ch>=0x20 && ch<0x80 ? ch : '.');
-    }
-    printf("\n");
-    printf(" maj =0x%04x", item->major_channel_number);
-    printf(" min =0x%04x", item->minor_channel_number);
-    printf(" mod =0x%04x", item->modulation_mode     );
-    printf(" freq=0x%04x", item->carrier_frequency   );
-    printf(" TSid=0x%04x", item->channel_TSID        );
-    printf(" prog=0x%04x\n", item->program_number      );
-    printf(" etm =0x%04x", item->etm_location        );
-    printf(" acc =0x%04x", item->access_controlled   );
-    printf(" hide=0x%04x", item->hidden              );
-    printf(" serv=0x%04x", item->service_type        );
-    printf(" s_id=0x%04x", item->source_id           );
-    printf(" pcr =0x%04x\n", item->pcr_pid             );
-    for( int k=0; k<item->num_ch_elts; ++k ) {
-      printf("   %2d.", k);
-      printf(" stream=0x%04x",item->elts[k].stream_id  );
-      printf(" pid=0x%04x",item->elts[k].pes_pid    );
-      int ch0 = item->elts[k].code_639[0];
-      int ch1 = item->elts[k].code_639[1];
-      int ch2 = item->elts[k].code_639[2];
-      printf(" lang_code=%c",ch0>=0x20 && ch0<0x80 ? ch0 : '.');
-      printf("%c",ch1>=0x20 && ch1<0x80 ? ch1 : '.');
-      printf("%c",ch2>=0x20 && ch2<0x80 ? ch2 : '.');
-      printf("\n");
-    }
-  }
-}
-
-static void prt_mgt(zmgt_t *mgt)
-{
-  printf("MGT table - items=%d\n", mgt->items);
-  zmitem_t *item = mgt->mitems;
-  for( int i=0; i<mgt->items; ++i,++item ) {
-    printf("   %2d.", i);
-    printf(" typ=0x%04x", item->type);
-    char msg[16];
-    uint16_t type = item->type;
-     if( type >= 0x1500 ) sprintf(msg,"Reserved");
-else if( type >= 0x1400 ) sprintf(msg,"DCCT %04x",type-0x1400);
-else if( type >= 0x1000 ) sprintf(msg,"Reserved");
-else if( type >= 0x0400 ) sprintf(msg,"Private%3d",type-0x0400);
-else if( type >= 0x0301 ) sprintf(msg,"RRT %3d",type-0x0300);
-else if( type >= 0x0280 ) sprintf(msg,"Reserved");
-else if( type >= 0x0200 ) sprintf(msg,"ETT %3d",type-0x0200);
-else if( type >= 0x0180 ) sprintf(msg,"Reserved");
-else if( type >= 0x0100 ) sprintf(msg,"EIT %3d",type-0x0100);
-else if( type >= 0x0006 ) sprintf(msg,"Reserved");
-else if( type == 0x0005 ) sprintf(msg,"DCCSCT");
-else if( type == 0x0004 ) sprintf(msg,"ChanETT");
-else if( type == 0x0003 ) sprintf(msg,"CableVCT0");
-else if( type == 0x0002 ) sprintf(msg,"CableVCT1");
-else if( type == 0x0001 ) sprintf(msg,"TerraVCT0");
-else if( type == 0x0000 ) sprintf(msg,"TerraVCT1");
-    printf("(%-10s)",msg);
-    printf(" pid=0x%04x", item->pid);
-    printf(" ver=0x%04x", item->version);
-    printf(" size=0x%04x", item->size);
-    printf("\n");
-  }
-}
-
-static void prt_stt(zdvb_t *dvb, zstt_t *stt)
-{
-  time_t tm = stt->system_time + dvb->stt_offset();
-  printf("STT table  table_id=0x%04x - %s\n", stt->table_id, ctime(&tm));
-}
-
-static void prt_huf(zdvb_t *dvb,uint8_t *bp, int len)
-{
-  char *text = dvb->mstring(bp,len);
-  if( text ) printf("%s",text);
-  delete [] text;
-}
-
-static void prt_rrt(zrrt_t *rrt)
-{
-  int items = rrt->items;
-  printf("RRT table - items=%d\n      region=", items);
-  prt_huf(rrt->dvb,rrt->region_name,rrt->region_nlen);  printf("\n");
-  zritem_t *rp = rrt->ratings;
-  for( int i=0; i<items; ++i,++rp ) {
-    printf("  %d  ",i);
-    prt_huf(rrt->dvb,rp->dim_name,rp->dim_nlen);  printf("\n");
-    printf("   grad %d, num=%d\n", rp->graduated_scale, rp->num_values);
-    zrating_vt *ap = rp->abrevs;
-    int values = rp->num_values;
-    for( int j=0; j<values; ++j,++ap ) {
-      printf("   %3d ", j);  prt_huf(rrt->dvb,ap->rating_name,ap->rating_nlen);
-      printf(" = ");  prt_huf(rrt->dvb,ap->rating_text,ap->rating_tlen); printf("\n");
-    }
-  }
-}
-
-static void prt_ett(zdvb_t *dvb,zetext_t *etxt)
-{
-  printf("ETT table - table_id=0x%04x, etm_id=%08x, ",etxt->table_id, etxt->etm_id);
-  printf("source_id=%04x, ", etxt->etm_id>>16);
-  printf("event_id=%04x\n    ", (etxt->etm_id & 0xffff) >> 2);
-  prt_huf(dvb,etxt->msg_text,etxt->msg_tlen); printf("\n");
-}
-
-static void prt_eit(zdvb_t *dvb,zeit_t *eit)
-{
-  printf("EIT table - source_id=0x%04x, items=%d\n", eit->source_id, eit->items);
-  zeinfo_t *ep = eit->infos;
-  for( int i=0; i<eit->items; ++i,++ep ) {
-    time_t tm = ep->start_time + dvb->stt_offset();
-    printf(" %2d.  id=%04x  %02d:%02d %s    | ", i, ep->event_id,
-      ep->seconds/3600, (ep->seconds/60)%60, ctime(&tm));
-    prt_huf(eit->dvb,ep->title_text,ep->title_tlen); printf("\n");
-  }
-}
-
-#endif
-// comment/uncomment to enable/disable prt
-//#define dprintf(s...) printf(s)
-#define dprintf(s...) do {} while(0)
-#define prt_descr(s,t) do {} while(0)
-#define prt_vct(s) do {} while(0)
-#define prt_mgt(s) do {} while(0)
-#define prt_stt(d,s) do {} while(0)
-#define prt_rrt(s) do {} while(0)
-#define prt_eit(d,s) do {} while(0)
-#define prt_ett(d,s) do {} while(0)
-
-zdvb_t::
-dvb_t(zmpeg3_t *zsrc)
-: src(zsrc),
-  base_pid(0x1ffb)
-{
-  char *cp = getenv("DVB_STREAM_PROBE");
-  empirical = cp ? atoi(cp) : 0;
-  active = 0;
-}
-
-zdvb_t::
-~dvb_t()
-{
-  reset();
-}
-
-void zdvb_t::
-reset()
-{
-  stt_start_time = 0;
-  delete mgt;  mgt = 0;
-  while( eit ) { eit_t *nxt = eit->next;  delete eit;  eit = nxt; }
-  while( ett ) { ett_t *nxt = ett->next;  delete ett;  ett = nxt; }
-  delete tvct; tvct = 0;
-  delete cvct; cvct = 0;
-  delete rrt;  rrt = 0;
-  delete stt;  stt = 0;
-  base_pid.clear();
-  active = 0;
-}
-
-void zdvb_t::
-skip_bfr(int n)
-{
-  int len = bfr_len();
-  if( n > len ) n = len;
-  xbfr += n;
-}
-
-int zdvb_t::
-get_text(uint8_t *dat, int bytes)
-{
-  int len = get8bits();
-  int count = len < bytes ? len : bytes;
-  for( int i=0; i<count; ++i ) *dat++ = get8bits();
-  skp_bfr(len-count);
-  return count;
-}
-
-void zdvb_t::
-append_text(char *msg, int n)
-{
-  int len = strnlen(msg, n);
-  int m = text_length + len + 1;
-  if( m > text_allocated ) {
-    int allocated = 2*text_allocated + len + 0x100;
-    char *new_text = new char[allocated];
-    text_allocated = allocated;
-    memcpy(new_text, text, text_length);
-    delete text;  text = new_text;
-  }
-  memmove(text+text_length,msg,len);
-  text[text_length += len] = 0;
-}
-
-char *zdvb_t::
-mstring(uint8_t *bp, int len)
-{
-  char msg[4096];
-  text_length = text_allocated = 0;
-  text = 0;  uint8_t *ep = bp + len;
-  int num = !len ? 0 : *bp++;
-  for( int i=0; i<num && bp<ep; ++i ) {
-    //uint8_t enc[4];
-    //enc[0] = *bp++; enc[1] = *bp++;
-    //enc[2] = *bp++; enc[3] = 0;
-    bp += 3; // enc
-    int segs = *bp++;
-    for( int j=0; j<segs; ++j ) {
-      int type = *bp++;
-      int mode = *bp++;  (void)mode;
-      int bytes = *bp++;
-      uint8_t *dat = bp;
-      bp += bytes;
-      switch( type ) {
-      case 0x01: { // huffman 1
-        int len = huf::huf1_decode(dat,bytes*8,msg,sizeof(msg));
-        append_text(msg,len);
-        break; }
-      case 0x02: { // huffman 2
-        int len = huf::huf2_decode(dat,bytes*8,msg,sizeof(msg));
-        append_text(msg,len);
-        break; }
-      default: { // no compression
-        append_text((char*)&dat[0],bytes);
-        break; }
-      }
-    }
-  }
-  return text;
-}
-
-void zdvb_t::
-skip_descr(int descr_length)
-{
-  if( descr_length > 0 && descr_length <= bfr_len() ) {
-    int descr_bytes = 0;
-    while( descr_bytes < descr_length ) {
-      uint32_t tag = get8bits();
-     (void)tag; /* avoid cmplr msg when debug off */
-      int len = get8bits() + 2;
-      int count = 2;
-      prt_descr(tag, len);
-      skp_bfr(len-count);
-      descr_bytes += len;
-    }
-  }
-}
-
-void zmitem_t::
-init(int len)
-{
-  if( len > bfr_alloc ) {
-    delete [] bfr;
-    bfr = new uint8_t[len];
-    bfr_alloc = len;
-  }
-  bfr_size = 0;
-  tbl_len = len;
-}
-
-void zmitem_t::
-extract(uint8_t *dat, int len)
-{
-  if( bfr_size+len <= bfr_alloc || (len=bfr_alloc-bfr_size) > 0 ) {
-    memcpy(bfr+bfr_size, dat, len);
-    bfr_size += len;
-  }
-}
-
-void zmitem_t::
-clear()
-{
-  delete [] bfr;
-  bfr = 0;
-  bfr_size = bfr_alloc = 0;
-}
-
-void zmgt_t::
-extract()
-{
-  clear();
-  items = dvb->get16bits();
-  mitems = new mitem_t[items];
-  mitem_t *item = mitems;
-  for( int i=0; i<items; ++i,++item ) {
-    item->type = dvb->get16bits();
-    item->pid = dvb->get16bits() & 0x1fff;
-    item->version = dvb->get8bits() & 0x1f;
-    item->size = dvb->get32bits();
-    int descr_len = dvb->get16bits() & 0xfff;
-    dvb->skip_descr(descr_len);
-  }
-  int descr_len = dvb->get16bits() & 0xfff;
-  dvb->skip_descr(descr_len);
-  prt_mgt(this);
-}
-
-void zmgt_t::
-clear()
-{
-  delete [] mitems;  mitems = 0;
-  items = 0;
-}
-
-zmitem_t *zmgt_t::
-search(uint16_t pid)
-{
-  mitem_t *item = mitems;
-  int i = items;
-  while( --i>=0 && item->pid!=pid ) ++item;
-  return i < 0 ? 0 : item;
-}
-
-void zch_elts_t::
-extract(dvb_t *dvb)
-{
-  stream_id = dvb->get8bits();
-  pes_pid = dvb->get16bits() & 0x1fff;
-  code_639[0] = dvb->get8bits();
-  code_639[1] = dvb->get8bits();
-  code_639[2] = dvb->get8bits();
-}
-
-void zvitem_t::
-extract(dvb_t *dvb)
-{
-  for( int i=0; i<7 ; ++i ) short_name[i] = dvb->get16bits();
-  uint8_t b0 = dvb->get8bits();
-  uint8_t b1 = dvb->get8bits();
-  uint8_t b2 = dvb->get8bits();
-  major_channel_number = ((b0&0x0f)<<6) | ((b1>>2)&0x3f);
-  minor_channel_number = ((b1&0x03)<<8) | b2;
-  modulation_mode = dvb->get8bits();
-  carrier_frequency = dvb->get32bits();
-  channel_TSID = dvb->get16bits();
-  program_number = dvb->get16bits();
-  b0 = dvb->get8bits();
-  etm_location = (b0 >> 6) & 0x03;
-  access_controlled = (b0 >> 5) & 1;
-  hidden = (b0 >> 4) & 1;
-  path_select = (b0 >> 3) & 1;
-  out_of_band = (b0 >> 2) & 1;
-  service_type = dvb->get8bits() & 0x3f;
-  source_id = dvb->get16bits();
-  num_ch_elts = 0;
-
-  int descr_length = dvb->get16bits() & 0x3ff;
-  int descr_bytes = 0;
-
-  while( descr_bytes < descr_length ) {
-    if( dvb->bfr_len() < 2 ) return;
-    uint32_t tag = dvb->get8bits();
-    int len = dvb->get8bits() + 2;
-    prt_descr(tag, len);
-    int count = 2;
-    if( tag == 0xa1 ) {
-      /* "Service Location Descriptor", extract common info */
-      pcr_pid = dvb->get16bits() & 0x1fff;
-      int num_elts = dvb->get8bits();
-      count += 3;
-      int n = num_elts;
-      if( n > lengthof(elts) ) {
-        n = lengthof(elts);
-        printf("num of pids = %d -- truncated to %d\n", num_elts,n);
-      }
-      /* step thru each channel element & extract info into the VCT */
-      num_ch_elts += n;
-      for( int j=0; j<n; ++j )
-        elts[j].extract(dvb);
-      count += n*6;
-    }
-    dvb->skp_bfr(len-count);
-    descr_bytes += len;
-  }
-}
-
-int zvct_t::
-search(zvitem_t &new_item)
-{
-  uint32_t maj = new_item.major_channel_number;
-  uint32_t min = new_item.minor_channel_number;
-  for( int i=items; --i>=0; ) {
-    vitem_t *item = vct_tbl[i];
-    if( maj == item->major_channel_number &&
-        min == item->minor_channel_number ) return 1;
-  }
-  return 0;
-}
-
-void zvct_t::
-append(zvitem_t &new_vitem)
-{
-  if( items >= items_allocated ) {
-    int allocated = 2*items_allocated + 16;
-    vitem_t **new_vct_tbl = new vitem_t *[allocated];
-    items_allocated = allocated;
-    for( int i=0; i<items; ++i ) new_vct_tbl[i] = vct_tbl[i];
-    delete [] vct_tbl;  vct_tbl = new_vct_tbl;
-  }
-  vct_tbl[items++] = new vitem_t(new_vitem);
-}
-
-void zvct_t::
-extract()
-{
-  transport_stream_id = dvb->stream_id;
-  version = dvb->version;
-  int nitems = dvb->get8bits();
-  /* append new entries */
-  for( int i=0; i<nitems; ++i ) {
-    vct_t::vitem_t new_item;
-    new_item.extract(dvb);
-    if( !search(new_item) )
-      append(new_item);
-  }
-  int descr_len = dvb->get16bits() & 0x3ff;
-  dvb->skip_descr(descr_len);
-  prt_vct(this);
-}
-
-void zvct_t::
-clear()
-{
-  for( int i=0; i<items; ++i ) delete vct_tbl[i];
-  delete [] vct_tbl;  vct_tbl = 0;
-  items = items_allocated = 0;
-}
-
-void zrating_vt::
-extract(dvb_t *dvb)
-{
-  rating_nlen = dvb->get_text(rating_name, lengthof(rating_name));
-  rating_tlen = dvb->get_text(rating_text, lengthof(rating_text));
-}
-
-void zritem_t::
-extract(dvb_t *dvb)
-{
-  clear();
-  dim_nlen = dvb->get_text(dim_name,lengthof(dim_name));
-  int len = dvb->get8bits();
-  graduated_scale = (len>>4) & 1;
-  num_values = len & 0x0f;
-  abrevs = new rating_vt[num_values];
-  for( int i=0; i<num_values; ++i )
-    abrevs[i].extract(dvb);
-}
-
-void zritem_t::
-clear()
-{
-  delete [] abrevs;  abrevs = 0;
-  num_values = 0;
-}
-
-void zrrt_t::
-extract()
-{
-  clear();
-  version = dvb->version;
-  region_nlen = dvb->get_text(region_name,lengthof(region_name));
-  items = dvb->get8bits();
-  ratings = new ritem_t[items];
-  for( int i=0; i<items; ++i )
-    ratings[i].extract(dvb);
-  int descr_len = dvb->get16bits() & 0x3ff;
-  dvb->skip_descr(descr_len);
-  prt_rrt(this);
-}
-
-void zrrt_t::
-clear()
-{
-  delete [] ratings;  ratings = 0;
-  items = 0;
-}
-
-
-void zeinfo_t::
-extract(dvb_t *dvb)
-{
-  event_id = dvb->get16bits() & 0x3fff;
-  start_time = dvb->get32bits();
-  uint32_t loc = dvb->get24bits();
-  location = (loc>>20) & 0x3;
-  seconds = loc & 0x0fffff;
-  title_tlen = dvb->get8bits();
-  title_text = new uint8_t[title_tlen];
-  for( int i=0; i<title_tlen; ++i )
-    title_text[i] = dvb->get8bits();
-  int descr_len = dvb->get16bits() & 0xfff;
-  dvb->skip_descr(descr_len);
-}
-
-void zeinfo_t::
-clear()
-{
-  delete [] title_text;  title_text = 0;
-  title_tlen = 0;
-}
-
-void zeit_t::
-extract()
-{
-  clear();
-  version = dvb->version;
-  source_id = dvb->stream_id;
-  nitems = dvb->get8bits();
-  infos = new einfo_t[nitems];
-  items = 0;
-  for( int i=0; i<nitems; ++i ) {
-    infos[items].extract(dvb);
-    if( !search(infos[items].event_id) ) ++items;
-    else infos[items].clear();
-  }
-  prt_eit(dvb,this);
-}
-
-void zeit_t::
-clear()
-{
-  for( int i=0; i<items; ++i ) infos[i].clear();
-  delete [] infos;  infos = 0;
-  items = nitems = 0;
-}
-
-int zeit_t::
-search(uint16_t evt_id)
-{
-  uint16_t src_id = id >> 16;
-  for( eit_t *ep=dvb->eit; ep; ep=ep->next ) {
-    if( (ep->id>>16) != src_id ) continue;
-    for( int i=0; i<ep->items; ++i )
-      if( ep->infos[i].event_id == evt_id ) return 1;
-  }
-  return 0;
-}
-
-void zetext_t::
-extract(dvb_t *dvb, uint32_t eid)
-{
-  clear();
-  version = dvb->version;
-  table_id = dvb->stream_id;
-  etm_id = eid;
-  int tlen = dvb->bfr_len() - sizeof(uint32_t);
-  msg_text = new uint8_t[tlen];
-  msg_tlen = tlen;
-  for( int i=0; i<msg_tlen; ++i )
-    msg_text[i] = dvb->get8bits();
-  prt_ett(dvb, this);
-}
-
-void zetext_t::
-clear()
-{
-  delete [] msg_text;  msg_text = 0;
-  msg_tlen = 0;
-}
-
-void zett_t::
-extract()
-{
-  uint32_t eid = dvb->get32bits();
-  int id = (eid & ~0xffff) | ((eid & 0xffff) >> 2);
-  etext_t *etp = texts;
-  while( etp && etp->id != id ) etp=etp->next;
-  if( !etp ) { etp = new etext_t(id);  etp->next = texts;  texts = etp; }
-  etp->extract(dvb, eid);
-}
-
-void zett_t::
-clear()
-{
-  while( texts ) { etext_t *nxt = texts->next;  delete texts;  texts = nxt; }
-}
-
-
-void zstt_t::
-extract()
-{
-  clear();
-  version = dvb->version;
-  table_id = dvb->stream_id;
-  system_time = dvb->get32bits();
-  utc_offset = dvb->get8bits();
-  daylight_saving = dvb->get16bits();
-  //doesnt seem to really be there
-  //int descr_len = len - sizeof(uint32_t);
-  //dvb->skip_descr(descr_len);
-  dvb->skp_bfr(sizeof(uint32_t)); /*crc32*/
-  prt_stt(dvb,this);
-}
-
-void zstt_t::
-clear()
-{
-}
-
-
-zmitem_t *zdvb_t::
-atsc_pid(int pid)
-{
-  return pid==0x1ffb ? &base_pid : !mgt ? 0 : mgt->search(pid);
-}
-
-int zdvb_t::
-atsc_tables(zdemuxer_t *demux, int pid)
-{
-  active = atsc_pid(pid);
-  if( !active ) return 0;
-  int dlen = demux->zdata.size;
-//zmsgs("*** packet, pid = %04x, len=%04x\n", pid, dlen);
-  uint8_t *dbfr = demux->zdata.buffer;
-  uint8_t *dend = dbfr + dlen;
-  while( dbfr < dend ) {
-    if( demux->payload_unit_start_indicator ) {
-      if( active->tbl_id ) {
-        if( src->log_errs )
-          zmsgs("atsc_tables, unfinished table %04x, len=%d\n",
-            active->tbl_id, active->bfr_len());
-//      extract();
-      }
-      xbfr = dbfr;  eob = dend;
-      uint32_t tbl_id = get16bits();
-      switch( tbl_id ) {
-      case 0xc7: dprintf("MGT: ");     break;
-      case 0xc8: dprintf("TVCT: ");    break;
-      case 0xc9: dprintf("CVCT: ");    break;
-      case 0xca: dprintf("RRT: ");     break;
-      case 0xcb: dprintf("EIT: ");     break;
-      case 0xcc: dprintf("ETT: ");     break;
-      case 0xcd: dprintf("STT: ");     break;
-      case 0xd3: dprintf("DCCT\n");    return 0;
-      case 0xd4: dprintf("DCCSCT\n");  return 0;
-      case 0xffff:                     return 0;
-      default:   dprintf("tbl_id = 0x%02x\n",tbl_id);
-        return 1;
-      }
-      /* read header */
-      sect_len = get16bits() & 0x0fff;  /* 1,2 */
-      if( (sect_len-=6) < 0 ) {
-        zmsgs("sect_len=%d too small for header\n",sect_len);
-        return 1;
-      }
-      stream_id = get16bits();          /* 3,4 */
-      uint8_t byt = get8bits();         /* 5 */
-      version = (byt >> 1) & 0x1f;
-      cur_next = byt & 0x01;
-      sect_num = get8bits();            /* 6 */
-      proto_ver = get16bits() & 0xff;   /* 7,8 */
-      dprintf("pid/tid=%04x/%02x  len=%04x strm=%04x ver=%d cur=%d sect=%d proto=%d\n",
-        pid, tbl_id, sect_len, stream_id, version, cur_next, sect_num, proto_ver);
-      if( proto_ver != 0 ) return 1;
-      active->init(sect_len);
-      active->tbl_id = tbl_id;
-      active->src_id = stream_id;
-      dbfr = xbfr;
-    }
-    else if( !active->tbl_id )
-      return 1;
-
-    /* append data to buffer */
-    int len = dend - dbfr;
-    int want = active->bfr_len();
-    if( want < len ) len = want;
-    if( len > 0 ) {
-      active->extract(dbfr, len);
-      dbfr += len;
-    }
-    dprintf("append tbl_id=%04x, len=%04x, size=%04x\n",
-      active->tbl_id, len, active->bfr_size);
-
-    /* if table assembled, extract data */
-    if( !active->bfr_len() )
-      extract();
-  }
-
-  return 0;
-}
-
-void zdvb_t::extract()
-{
-  xbfr = active->bfr;
-  eob = xbfr + active->bfr_size;
-
-  switch( active->tbl_id ) {
-  case 0xc7:
-    if( !mgt ) mgt = new mgt_t(this);
-      mgt->extract();
-      break;
-  case 0xc8:
-    if( !tvct ) tvct = new vct_t(this);
-    tvct->extract();
-    break;
-  case 0xc9:
-    if( !cvct ) cvct = new vct_t(this);
-    cvct->extract();
-    break;
-  case 0xca:
-    if( !rrt ) rrt = new rrt_t(this);
-    rrt->extract();
-    break;
-  case 0xcb: { int id;
-    if( (id=active->type-0x100) < 0 || id >= 0x80 ) break;
-    id |= active->src_id << 16;
-    eit_t *eip = eit;
-    while( eip && eip->id != id ) eip = eip->next;
-    if( !eip ) { eip = new eit_t(this, id);  eip->next = eit;  eit = eip; }
-    eip->extract();
-    break; }
-  case 0xcc: { int id;
-    if( active->type == 0x0004 ) id = -1; // channel ett
-    else if( (id=active->type-0x200) < 0 || id >= 0x80 ) break;
-    ett_t *etp = ett;
-    while( etp && etp->id != id ) etp = etp->next;
-    if( !etp ) { etp = new ett_t(this, id);  etp->next = ett;  ett = etp; }
-    etp->extract();
-    break; }
-  case 0xcd:
-    if( !stt ) stt = new stt_t(this);
-    stt->extract();
-    if( !stt_start_time )
-      stt_start_time = stt->system_time;
-    break;
-  }
-
-  active->tbl_id = 0;
-}
-
-int zdvb_t::
-signal_time()
-{
-  return stt_start_time ? stt->system_time - stt_start_time : 0;
-}
-
-int zdvb_t::
-channel_count()
-{
-  vct_t *vct = tvct ? tvct : cvct;
-  return vct ? vct->items : -1;
-}
-
-int zdvb_t::
-get_channel(int n, int &major, int &minor)
-{
-  vct_t *vct = tvct ? tvct : cvct;
-  if( !vct ) return -1;
-  if( n < 0 || n >= vct->items ) return 1;
-  vct_t::vitem_t *item = vct->vct_tbl[n];
-  major = item->major_channel_number;
-  minor = item->minor_channel_number;
-  return 0;
-}
-
-int zdvb_t::
-get_station_id(int n, char *name)
-{
-  vct_t *vct = tvct ? tvct : cvct;
-  if( !vct ) return -1;
-  if( n < 0 || n >= vct->items ) return 1;
-  vct_t::vitem_t *item = vct->vct_tbl[n];
-  int i = 0;
-  while( i < 7 ) {
-    int ch = item->short_name[i];
-    name[i] = ch >= 0x20 && ch < 0x80 ? ch : '_';
-    ++i;
-  }
-  name[i] = 0;
-  return 0;
-}
-
-int zdvb_t::
-total_astreams(int n, int &count)
-{
-  vct_t *vct = tvct ? tvct : cvct;
-  if( !vct ) return -1;
-  if( n < 0 || n >= vct->items ) return 1;
-  vct_t::vitem_t *item = vct->vct_tbl[n];
-  count = 0;
-  for( int i=0; i<item->num_ch_elts; ++i ) {
-    int stream_id = item->elts[i].stream_id;
-    if( stream_id == 0x81 ||  /* AC3-audio */
-        stream_id == 0x03 ||  /* MPEG1-audio */
-        stream_id == 0x04 ) { /* MPEG1-audio */
-      ++count;
-    }
-  }
-  return 0;
-}
-
-int zdvb_t::
-astream_number(int n, int ord, int &stream, char *enc)
-{
-  vct_t *vct = tvct ? tvct : cvct;
-  if( !vct ) return -1;
-  if( n < 0 || n >= vct->items ) return 1;
-  vct_t::vitem_t *item = vct->vct_tbl[n];
-  vct_t::vitem_t::ch_elts_t *elt = 0;
-  int count = 0;
-  for( int i=0; i<item->num_ch_elts; ++i ) {
-    int stream_id = item->elts[i].stream_id;
-    if( stream_id == 0x81 || stream_id == 0x03 || stream_id == 0x04 ) {
-      if( count == ord ) {
-        elt = &item->elts[i];
-        break;
-      }
-      ++count;
-    }
-  }
-  if( !elt ) return 1;
-  int pid = elt->pes_pid;
-  int trk = 0;
-  while( trk < src->total_atracks ) {
-    if( src->atrack[trk]->pid == pid ) break;
-    ++trk;
-  }
-  if( trk >= src->total_atracks ) return 1;
-  stream = trk;
-  if( enc ) {
-    int ch0 = elt->code_639[0];
-    int ch1 = elt->code_639[1];
-    int ch2 = elt->code_639[2];
-    enc[0] = ch0>=0x20 && ch0<0x80 ? ch0 : '.';
-    enc[1] = ch1>=0x20 && ch1<0x80 ? ch1 : '.';
-    enc[2] = ch2>=0x20 && ch2<0x80 ? ch2 : '.';
-    enc[3] = 0;
-  }
-  return 0;
-}
-
-int zdvb_t::
-total_vstreams(int n,int &count)
-{
-  vct_t *vct = tvct ? tvct : cvct;
-  if( !vct ) return -1;
-  if( n < 0 || n >= vct->items ) return 1;
-  vct_t::vitem_t *item = vct->vct_tbl[n];
-  count = 0;
-  for( int i=0; i<item->num_ch_elts; ++i ) {
-    int stream_id = item->elts[i].stream_id;
-    if( stream_id == 0x02 || stream_id == 0x80 ) { /* video */
-      ++count;
-    }
-  }
-  return 0;
-}
-
-int zdvb_t::
-vstream_number(int n, int ord, int &stream)
-{
-  vct_t *vct = tvct ? tvct : cvct;
-  if( !vct ) return -1;
-  if( n < 0 || n >= vct->items ) return 1;
-  vct_t::vitem_t *item = vct->vct_tbl[n];
-  int pid = -1;
-  int count = 0;
-  for( int i=0; i<item->num_ch_elts; ++i ) {
-    int stream_id = item->elts[i].stream_id;
-    if( stream_id == 0x02 || stream_id == 0x80 ) {
-      if( count == ord ) {
-        pid = item->elts[i].pes_pid;
-        break;
-      }
-      ++count;
-    }
-  }
-  if( pid < 0 ) return 1;
-  int trk = 0;
-  while( trk < src->total_vtracks ) {
-    if( src->vtrack[trk]->pid == pid ) break;
-    ++trk;
-  }
-  if( trk >= src->total_vtracks ) return 1;
-  stream = trk;
-  return 0;
-}
-
-int zdvb_t::
-read_dvb(zdemuxer_t *demux)
-{
-  vct_t *vct = tvct ? tvct : cvct;
-  /* scan tables or use empirical data */
-  if( vct && !empirical ) {
-    memset(demux->astream_table,0,sizeof(demux->astream_table));
-    memset(demux->vstream_table,0,sizeof(demux->vstream_table));
-    /* mark active streams */
-    for( int n=0; n<vct->items; ++n ) {
-      vct_t::vitem_t *item = vct->vct_tbl[n];
-      for( int i=0; i<item->num_ch_elts; ++i ) {
-        int stream_id = item->elts[i].stream_id;
-        int pid = item->elts[i].pes_pid;
-//zmsgs("** dvb stream %02x pid %04x\n",stream_id,pid);
-        switch( stream_id ) {
-        case 0x80: /* video */
-        case 0x02: /* video */
-          demux->vstream_table[pid] = 1;
-          break;
-        case 0x03: /* MPEG1-audio */
-        case 0x04: /* MPEG1-audio */
-          demux->astream_table[pid] = afmt_MPEG;
-          break;
-        case 0x81: /* AC3-audio */
-          demux->astream_table[pid] = afmt_AC3;
-          break;
-        }
-      }
-    }
-  }
-  return 0;
-}
-
-int zdvb_t::
-get_chan_info(int n, int ord, int i, char *txt, int len)
-{
-  char *cp = txt;
-  if( len > 0 ) *cp = 0;
-  vct_t *vct = tvct ? tvct : cvct;
-  if( !vct ) return -1;
-  if( n < 0 || n >= vct->items ) return -1;
-  zvitem_t *item = vct->vct_tbl[n];
-  zeinfo_t *eip = 0;
-  int eid = item->source_id << 16;
-  if( ord >= 0 ) {  // not channel info
-    int xid = eid | ord;
-    eit_t *ep = eit;
-    while( ep && ep->id != xid ) ep = ep->next;
-    if( !ep || i >= ep->items ) return -1;
-    eip = &ep->infos[i];
-    time_t st = eip->start_time + stt_offset();
-    time_t et = st + eip->seconds;
-    struct tm stm;  localtime_r(&st, &stm);
-    struct tm etm;  localtime_r(&et, &etm);
-    if( len > 0 ) { // output start time
-      n = snprintf(cp,len,"%02d:%02d:%02d-", stm.tm_hour, stm.tm_min, stm.tm_sec);
-      cp += n;  len -= n;
-    }
-    if( len > 0 ) { // output end time
-      n = snprintf(cp,len,"%02d:%02d:%02d  ", etm.tm_hour, etm.tm_min, etm.tm_sec);
-      cp += n;  len -= n;
-    }
-    if( len > 0 ) { // output title text
-      char *text = mstring(eip->title_text,eip->title_tlen);
-      if( text ) {
-        char *bp = text;
-        while( *bp && len>0 ) {  // no new lines, messes up decoding title
-          *cp++ = *bp != '\n' ? *bp : ';';
-          --len;  ++bp;
-        }
-        if( len > 0 ) { *cp++ = '\n'; --len; }
-        delete [] text;
-      }
-    }
-    if( len > 0 ) { // output start weekday
-      n = snprintf(cp,len,"(%3.3s) ",&"sunmontuewedthufrisat"[stm.tm_wday*3]);
-      cp += n;  len -= n;
-    }
-    if( len > 0 ) { // output start date
-      n = snprintf(cp,len,"%04d/%02d/%02d\n", stm.tm_year+1900, stm.tm_mon+1, stm.tm_mday);
-      cp += n;  len -= n;
-    }
-    eid |= eip->event_id;
-  }
-  if( len > 0 && (eip ? eip->location : ord == -1) ) {
-    ett_t *etp = ett;
-    while( etp && etp->id != ord ) etp = etp->next;
-    if( etp ) {    // output extended message text
-      zetext_t *tp = etp->texts;
-      while( tp && tp->id != eid ) tp = tp->next;
-      if( tp ) {
-        if( ord < 0 ) {  // channel ett exists
-          n = snprintf(cp,len,"** ");
-          cp += n;  len -= n;
-        }
-        char *text = mstring(tp->msg_text,tp->msg_tlen);
-        if( text ) {
-          n = snprintf(cp,len,"%s\n",text);
-          cp += n;  len -= n;
-          delete [] text;
-        }
-      }
-    }
-  }
-  if( len > 0 ) *cp = 0;
-  return cp - txt;
-}
-
-#endif