Made -rom_toc_scan work on closed DVD-R in a DVD-ROM drive

libisoburn/burn_wrap.c

@@ -23,6 +23,7 @@
 #include <stdlib.h>
 #include <sys/stat.h>
 #include <fcntl.h>
+#include <time.h>
 
 
 #ifndef Xorriso_standalonE
@@ -985,7 +986,8 @@ int isoburn_emulate_toc(struct burn_drive *d, int flag)
  int scan_start= 0;
  struct isoburn *o;
  struct isoburn_toc_entry *item;
- char msg[160];
+ char msg[160], *sev;
+ time_t start_time, last_pacifier, now;
  
  /* is the media emulated multi-session ? */
  ret= isoburn_find_emulator(&o, d, 0);
@@ -996,6 +998,7 @@ int isoburn_emulate_toc(struct burn_drive *d, int flag)
  if(o->emulation_mode<=0 && !(flag&1))
    return(0);
 
+ start_time= last_pacifier= time(NULL);
  lba= 0;
  if(!(flag&2)) {
    ret= isoburn_read_iso_head(d, lba, &image_size, NULL, 0);
@@ -1043,14 +1046,32 @@ int isoburn_emulate_toc(struct burn_drive *d, int flag)
    item->start_lba= lba;
    item->track_blocks= track_blocks;
 
+   now= time(NULL);
+#ifdef Not_yeT
+
+   /* >>> need asynchronous delivery of messages */;
+
+   if(now - last_pacifier > 5) {
+     last_pacifier= now;
+     sprintf(msg, "Scanning found %d ISO session headers in %.f seconds",
+             session_count, (double) (now - start_time));
+     burn_msgs_submit(0x00060000, msg, 0, "UPDATE", NULL);
+   }
+#endif
+
    lba+= track_blocks;
    if(lba % Libisoburn_nwa_alignemenT)
      lba+= Libisoburn_nwa_alignemenT - (lba % Libisoburn_nwa_alignemenT);
    scan_start= lba;
  }
- sprintf(msg,
-         "Chain of ISO session headers yielded %d sessions", session_count);
- burn_msgs_submit(0x00060000, msg, 0, "DEBUG", NULL);
+ if(last_pacifier != start_time)
+   sev= "UPDATE";
+ else
+   sev= "DEBUG";
+ now= time(NULL);
+ sprintf(msg, "Scanning found %d ISO session headers in %.f seconds",
+         session_count, (double) (now - start_time));
+ burn_msgs_submit(0x00060000, msg, 0, sev, NULL);
  return(1);
 failure:;
  isoburn_toc_entry_destroy(&(o->toc), 1);

libisoburn/isoburn.h

@@ -369,8 +369,10 @@ struct isoburn_imgen_opts {
 
 /* Maximum gap to be bridged during a outer TOC scan. Gaps appear between the
    end of a session and the start of the next session.
+   The longest gap found so far was about 38100 after the first session of a
+   DVD-R.
 */
-#define Libisoburn_toc_scan_max_gaP 8192
+#define Libisoburn_toc_scan_max_gaP 65536
 
 
 /* Creating a chain of image headers which form a TOC:

xorriso/xorriso_timestamp.h

@@ -1 +1 @@
-#define Xorriso_timestamP "2008.06.17.170622"
+#define Xorriso_timestamP "2008.06.18.132057"