lib/python/Plugins/Extensions/DVDBurn/Process.py

   1 from Components.Task import Task, Job, job_manager, DiskspacePrecondition, Condition
   2 from Screens.MessageBox import MessageBox
   3
   4 class png2yuvTask(Task):
   5         def __init__(self, job, inputfile, outputfile):
   6                 Task.__init__(self, job, "Creating menu video")
   7                 self.setTool("/usr/bin/png2yuv")
   8                 self.args += ["-n1", "-Ip", "-f25", "-j", inputfile]
   9                 self.dumpFile = outputfile
  10                 self.weighting = 10
  11
  12         def run(self, callback, task_progress_changed):
  13                 Task.run(self, callback, task_progress_changed)
  14                 self.container.dumpToFile(self.dumpFile)
  15
  16         def processStderr(self, data):
  17                 print "[png2yuvTask]", data
  18
  19         def processStdout(self, data):
  20                 pass
  21
  22 class mpeg2encTask(Task):
  23         def __init__(self, job, inputfile, outputfile):
  24                 Task.__init__(self, job, "Encoding menu video")
  25                 self.setTool("/usr/bin/mpeg2enc")
  26                 self.args += ["-f8", "-np", "-a2", "-o", outputfile]
  27                 self.inputFile = inputfile
  28                 self.weighting = 10
  29
  30         def run(self, callback, task_progress_changed):
  31                 Task.run(self, callback, task_progress_changed)
  32                 self.container.readFromFile(self.inputFile)
  33
  34         def processOutputLine(self, line):
  35                 print "[mpeg2encTask]", line
  36
  37 class spumuxTask(Task):
  38         def __init__(self, job, xmlfile, inputfile, outputfile):
  39                 Task.__init__(self, job, "Muxing buttons into menu")
  40                 self.setTool("/usr/bin/spumux")
  41                 self.args += [xmlfile]
  42                 self.inputFile = inputfile
  43                 self.dumpFile = outputfile
  44                 self.weighting = 10
  45
  46         def run(self, callback, task_progress_changed):
  47                 Task.run(self, callback, task_progress_changed)
  48                 self.container.dumpToFile(self.dumpFile)
  49                 self.container.readFromFile(self.inputFile)
  50
  51         def processStderr(self, data):
  52                 print "[spumuxTask]", data
  53
  54         def processStdout(self, data):
  55                 pass
  56
  57 class MakeFifoNode(Task):
  58         def __init__(self, job, number):
  59                 Task.__init__(self, job, "Make FIFO nodes")
  60                 self.setTool("/bin/mknod")
  61                 nodename = self.job.workspace + "/dvd_title_%d" % number + ".mpg"
  62                 self.args += [nodename, "p"]
  63                 self.weighting = 10
  64
  65 class LinkTS(Task):
  66         def __init__(self, job, sourcefile, link_name):
  67                 Task.__init__(self, job, "Creating symlink for source titles")
  68                 self.setTool("/bin/ln")
  69                 self.args += ["-s", sourcefile, link_name]
  70                 self.weighting = 10
  71
  72 class DemuxTask(Task):
  73         def __init__(self, job, inputfile):
  74                 Task.__init__(self, job, "Demux video into ES")
  75                 title = job.project.titles[job.i]
  76                 self.global_preconditions.append(DiskspacePrecondition(title.estimatedDiskspace))
  77                 self.setTool("/usr/bin/projectx")
  78                 self.generated_files = [ ]
  79                 self.end = 300
  80                 self.prog_state = 0
  81                 self.weighting = 1000
  82                 self.cutfile = self.job.workspace + "/cut_%d.Xcl" % (job.i+1)
  83                 self.cutlist = title.cutlist
  84                 self.args += [inputfile, "-demux", "-out", self.job.workspace ]
  85                 if len(self.cutlist) > 1:
  86                         self.args += [ "-cut", self.cutfile ]
  87
  88         def prepare(self):
  89                 self.writeCutfile()
  90
  91         def processOutputLine(self, line):
  92                 line = line[:-1]
  93                 MSG_NEW_FILE = "---> new File: "
  94                 MSG_PROGRESS = "[PROGRESS] "
  95
  96                 if line.startswith(MSG_NEW_FILE):
  97                         file = line[len(MSG_NEW_FILE):]
  98                         if file[0] == "'":
  99                                 file = file[1:-1]
 100                         self.haveNewFile(file)
 101                 elif line.startswith(MSG_PROGRESS):
 102                         progress = line[len(MSG_PROGRESS):]
 103                         self.haveProgress(progress)
 104
 105         def haveNewFile(self, file):
 106                 print "PRODUCED FILE [%s]" % file
 107                 self.generated_files.append(file)
 108
 109         def haveProgress(self, progress):
 110                 print "PROGRESS [%s]" % progress
 111                 MSG_CHECK = "check & synchronize audio file"
 112                 MSG_DONE = "done..."
 113                 if progress == "preparing collection(s)...":
 114                         self.prog_state = 0
 115                 elif progress[:len(MSG_CHECK)] == MSG_CHECK:
 116                         self.prog_state += 1
 117                 else:
 118                         try:
 119                                 p = int(progress)
 120                                 p = p - 1 + self.prog_state * 100
 121                                 if p > self.progress:
 122                                         self.progress = p
 123                         except ValueError:
 124                                 print "val error"
 125                                 pass
 126
 127         def writeCutfile(self):
 128                 f = open(self.cutfile, "w")
 129                 f.write("CollectionPanel.CutMode=4\n")
 130                 for p in self.cutlist:
 131                         s = p / 90000
 132                         m = s / 60
 133                         h = m / 60
 134
 135                         m %= 60
 136                         s %= 60
 137
 138                         f.write("%02d:%02d:%02d\n" % (h, m, s))
 139                 f.close()
 140
 141         def cleanup(self, failed):
 142                 if failed:
 143                         import os
 144                         for f in self.generated_files:
 145                                 os.remove(f)
 146
 147 class MplexTask(Task):
 148         def __init__(self, job, outputfile, inputfiles=None, demux_task=None):
 149                 Task.__init__(self, job, "Mux ES into PS")
 150                 self.weighting = 500
 151                 self.demux_task = demux_task
 152                 self.setTool("/usr/bin/mplex")
 153                 self.args += ["-f8", "-o", outputfile, "-v1"]
 154                 if inputfiles:
 155                         self.args += inputfiles
 156
 157         def prepare(self):
 158                 if self.demux_task:
 159                         self.args += self.demux_task.generated_files
 160
 161         def processOutputLine(self, line):
 162                 print "[MplexTask] processOutputLine=", line
 163
 164 class RemoveESFiles(Task):
 165         def __init__(self, job, demux_task):
 166                 Task.__init__(self, job, "Remove temp. files")
 167                 self.demux_task = demux_task
 168                 self.setTool("/bin/rm")
 169
 170         def prepare(self):
 171                 self.args += ["-f"]
 172                 self.args += self.demux_task.generated_files
 173                 self.args += [self.demux_task.cutfile]
 174
 175 class DVDAuthorTask(Task):
 176         def __init__(self, job, diskspaceNeeded):
 177                 Task.__init__(self, job, "Authoring DVD")
 178
 179                 self.global_preconditions.append(DiskspacePrecondition(diskspaceNeeded))
 180                 self.weighting = 300
 181                 self.setTool("/usr/bin/dvdauthor")
 182                 self.CWD = self.job.workspace
 183                 self.args += ["-x", self.job.workspace+"/dvdauthor.xml"]
 184                 self.menupreview = job.menupreview
 185
 186         def processOutputLine(self, line):
 187                 print "[DVDAuthorTask] processOutputLine=", line
 188                 if not self.menupreview and line.startswith("STAT: Processing"):
 189                         self.callback(self, [], stay_resident=True)
 190
 191 class DVDAuthorFinalTask(Task):
 192         def __init__(self, job):
 193                 Task.__init__(self, job, "dvdauthor finalize")
 194                 self.setTool("/usr/bin/dvdauthor")
 195                 self.args += ["-T", "-o", self.job.workspace + "/dvd"]
 196
 197 class WaitForResidentTasks(Task):
 198         def __init__(self, job):
 199                 Task.__init__(self, job, "waiting for dvdauthor to finalize")
 200
 201         def run(self, callback, task_progress_changed):
 202                 print "waiting for %d resident task(s) %s to finish..." % (len(self.job.resident_tasks),str(self.job.resident_tasks))
 203                 if self.job.resident_tasks == 0:
 204                         callback(self, [])
 205
 206 class BurnTaskPostcondition(Condition):
 207         def check(self, task):
 208                 return task.error is None
 209
 210         def getErrorMessage(self, task):
 211                 return {
 212                         task.ERROR_MEDIA: ("Medium is not a writeable DVD!"),
 213                         task.ERROR_SIZE: ("Content does not fit on DVD!"),
 214                         task.ERROR_WRITE_FAILED: ("Write failed!"),
 215                         task.ERROR_DVDROM: ("No (supported) DVDROM found!"),
 216                         task.ERROR_UNKNOWN: ("An unknown error occured!")
 217                 }[task.error]
 218
 219 class BurnTask(Task):
 220         ERROR_MEDIA, ERROR_SIZE, ERROR_WRITE_FAILED, ERROR_DVDROM, ERROR_UNKNOWN = range(5)
 221         def __init__(self, job):
 222                 Task.__init__(self, job, "burn")
 223
 224                 self.weighting = 500
 225                 self.end = 120 # 100 for writing, 10 for buffer flush, 10 for closing disc
 226                 self.postconditions.append(BurnTaskPostcondition())
 227                 self.setTool("/bin/growisofs")
 228
 229                 self.args += ["-dvd-video", "-dvd-compat", "-Z", "/dev/cdroms/cdrom0", "-V", self.getASCIIname(job.project.name), "-P", "Dreambox", "-use-the-force-luke=dummy", self.job.workspace + "/dvd"]
 230
 231         def getASCIIname(self, name):
 232                 ASCIIname = ""
 233                 for char in name.decode("utf-8").encode("ascii","replace"):
 234                         if ord(char) <= 0x20 or ( ord(char) >= 0x3a and ord(char) <= 0x40 ):
 235                                 ASCIIname += '_'
 236                         else:
 237                                 ASCIIname += char
 238                 return ASCIIname
 239
 240         def prepare(self):
 241                 self.error = None
 242
 243         def processOutputLine(self, line):
 244                 line = line[:-1]
 245                 print "[GROWISOFS] %s" % line
 246                 if line[8:14] == "done, ":
 247                         self.progress = float(line[:6])
 248                         print "progress:", self.progress
 249                 elif line.find("flushing cache") != -1:
 250                         self.progress = 100
 251                 elif line.find("closing disc") != -1:
 252                         self.progress = 110
 253                 elif line.startswith(":-["):
 254                         if line.find("ASC=30h") != -1:
 255                                 self.error = self.ERROR_MEDIA
 256                         else:
 257                                 self.error = self.ERROR_UNKNOWN
 258                                 print "BurnTask: unknown error %s" % line
 259                 elif line.startswith(":-("):
 260                         if line.find("No space left on device") != -1:
 261                                 self.error = self.ERROR_SIZE
 262                         elif line.find("write failed") != -1:
 263                                 self.error = self.ERROR_WRITE_FAILED
 264                         elif line.find("unable to open64(\"/dev/cdroms/cdrom0\",O_RDONLY): No such file or directory") != -1: # fixme
 265                                 self.error = self.ERROR_DVDROM
 266                         elif line.find("media is not recognized as recordable DVD") != -1:
 267                                 self.error = self.ERROR_MEDIA
 268                         else:
 269                                 self.error = self.ERROR_UNKNOWN
 270                                 print "BurnTask: unknown error %s" % line
 271
 272 class RemoveDVDFolder(Task):
 273         def __init__(self, job):
 274                 Task.__init__(self, job, "Remove temp. files")
 275                 self.setTool("/bin/rm")
 276                 self.args += ["-rf", self.job.workspace]
 277
 278 class PreviewTask(Task):
 279         def __init__(self, job):
 280                 Task.__init__(self, job, "Preview")
 281                 self.job = job
 282
 283         def run(self, callback, task_progress_changed):
 284                 self.callback = callback
 285                 self.task_progress_changed = task_progress_changed
 286                 if self.job.project.waitboxref:
 287                         self.job.project.waitboxref.close()
 288                 if self.job.menupreview:
 289                         self.waitAndOpenPlayer()
 290                 else:
 291                         self.job.project.session.openWithCallback(self.previewCB, MessageBox, _("Do you want to preview this project before burning?"), timeout = 60, default = False)
 292
 293         def previewCB(self, answer):
 294                 if answer == True:
 295                         self.waitAndOpenPlayer()
 296                 else:
 297                         self.closedCB(True)
 298
 299         def playerClosed(self):
 300                 if self.job.menupreview:
 301                         self.closedCB(True)
 302                 else:
 303                         self.job.project.session.openWithCallback(self.closedCB, MessageBox, _("Do you want to burn this project to DVD medium?") )
 304
 305         def closedCB(self, answer):
 306                 if answer == True:
 307                         Task.processFinished(self, 0)
 308                 else:
 309                         Task.processFinished(self, 1)
 310
 311         def waitAndOpenPlayer(self):
 312                 from enigma import eTimer
 313                 self.delayTimer = eTimer()
 314                 self.delayTimer.callback.append(self.previewProject)
 315                 self.delayTimer.start(10,1)
 316
 317         def previewProject(self):
 318                 from Plugins.Extensions.DVDPlayer.plugin import DVDPlayer
 319                 self.job.project.session.openWithCallback(self.playerClosed, DVDPlayer, dvd_filelist= [ self.job.project.workspace + "/dvd/VIDEO_TS/" ])
 320
 321 def getTitlesPerMenu(nr_titles):
 322         if nr_titles < 6:
 323                 titles_per_menu = 5
 324         else:
 325                 titles_per_menu = 4
 326         return titles_per_menu
 327
 328 def CreateMenus(job):
 329         import os, Image, ImageDraw, ImageFont, re
 330         imgwidth = 720
 331         imgheight = 576
 332
 333         im_bg_orig = Image.open(job.project.menubg)
 334         if im_bg_orig.size != (imgwidth, imgheight):
 335                 im_bg_orig = im_bg_orig.resize((720, 576))
 336
 337         font0 = ImageFont.truetype(job.project.font_face, job.project.font_size[0])
 338         font1 = ImageFont.truetype(job.project.font_face, job.project.font_size[1])
 339         font2 = ImageFont.truetype(job.project.font_face, job.project.font_size[2])
 340         spu_palette = [ 0x60, 0x60, 0x60 ] + list(job.project.color_highlight)
 341
 342         nr_titles = len(job.project.titles)
 343         titles_per_menu = getTitlesPerMenu(nr_titles)
 344         job.nr_menus = ((nr_titles+titles_per_menu-1)/titles_per_menu)
 345
 346         #a new menu_count every 5 titles (1,2,3,4,5->1 ; 6,7,8,9,10->2 etc.)
 347         for menu_count in range(1 , job.nr_menus+1):
 348                 im_bg = im_bg_orig.copy()
 349                 im_high = Image.new("P", (imgwidth, imgheight), 0)
 350                 im_high.putpalette(spu_palette)
 351                 draw_bg = ImageDraw.Draw(im_bg)
 352                 draw_high = ImageDraw.Draw(im_high)
 353
 354                 if menu_count == 1:
 355                         headline = job.project.name.decode("utf-8")
 356                         textsize = draw_bg.textsize(headline, font=font0)
 357                         if textsize[0] > imgwidth:
 358                                 offset = (0 , 20)
 359                         else:
 360                                 offset = (((imgwidth-textsize[0]) / 2) , 20)
 361                         draw_bg.text(offset, headline, fill=job.project.color_headline, font=font0)
 362
 363                 menubgpngfilename = job.workspace+"/dvd_menubg"+str(menu_count)+".png"
 364                 highlightpngfilename = job.workspace+"/dvd_highlight"+str(menu_count)+".png"
 365                 spuxml = """<?xml version="1.0" encoding="utf-8"?>
 366         <subpictures>
 367         <stream>
 368         <spu
 369         highlight="%s"
 370         transparent="%02x%02x%02x"
 371         start="00:00:00.00"
 372         force="yes" >""" % (highlightpngfilename, spu_palette[0], spu_palette[1], spu_palette[2])
 373
 374                 rowheight = (job.project.font_size[1]+job.project.font_size[2]+job.project.space_rows)
 375                 menu_start_title = (menu_count-1)*titles_per_menu + 1
 376                 menu_end_title = (menu_count)*titles_per_menu + 1
 377                 if menu_end_title > nr_titles:
 378                         menu_end_title = nr_titles+1
 379                 menu_i = 0
 380                 for title_no in range( menu_start_title , menu_end_title ):
 381                         i = title_no-1
 382                         top = job.project.space_top + ( menu_i * rowheight )
 383                         menu_i += 1
 384                         title = job.project.titles[i]
 385                         titlename = title.name.decode("utf-8")
 386                         menuitem = "%d. %s" % (title_no, titlename)
 387                         draw_bg.text((job.project.space_left,top), menuitem, fill=job.project.color_button, font=font1)
 388                         draw_high.text((job.project.space_left,top), menuitem, fill=1, font=font1)
 389                         res = re.search("(?:/.*?).*/(?P<year>\d{4})(?P<month>\d{2})(?P<day>\d{2}).(?P<hour>\d{2})(?P<minute>\d{2}).-.*.?.ts", title.inputfile)
 390                         subtitle = ""
 391                         if res:
 392                                 subtitle = "%s-%s-%s, %s:%s. " % (res.group("year"),res.group("month"),res.group("day"),res.group("hour"),res.group("minute"))
 393                         if len(title.descr) > 1:
 394                                 subtitle += title.descr.decode("utf-8") + ". "
 395                         if len(title.chaptermarks) > 1:
 396                                 subtitle += (" (%d %s)" % (len(title.chaptermarks)+1, _("chapters")))
 397                         draw_bg.text((job.project.space_left,top+36), subtitle, fill=job.project.color_button, font=font2)
 398
 399                         bottom = top+rowheight
 400                         if bottom > imgheight:
 401                                 bottom = imgheight
 402                         spuxml += """
 403         <button name="button%s" x0="%d" x1="%d" y0="%d" y1="%d"/>""" % (str(title_no).zfill(2),job.project.space_left,imgwidth,top,bottom )
 404                 if menu_count > 1:
 405                         prev_page_text = "<<<"
 406                         textsize = draw_bg.textsize(prev_page_text, font=font1)
 407                         offset = ( 2*job.project.space_left, job.project.space_top + ( titles_per_menu * rowheight ) )
 408                         draw_bg.text(offset, prev_page_text, fill=job.project.color_button, font=font1)
 409                         draw_high.text(offset, prev_page_text, fill=1, font=font1)
 410                         spuxml += """
 411         <button name="button_prev" x0="%d" x1="%d" y0="%d" y1="%d"/>""" % (offset[0],offset[0]+textsize[0],offset[1],offset[1]+textsize[1])
 412
 413                 if menu_count < job.nr_menus:
 414                         next_page_text = ">>>"
 415                         textsize = draw_bg.textsize(next_page_text, font=font1)
 416                         offset = ( imgwidth-textsize[0]-2*job.project.space_left, job.project.space_top + ( titles_per_menu * rowheight ) )
 417                         draw_bg.text(offset, next_page_text, fill=job.project.color_button, font=font1)
 418                         draw_high.text(offset, next_page_text, fill=1, font=font1)
 419                         spuxml += """
 420         <button name="button_next" x0="%d" x1="%d" y0="%d" y1="%d"/>""" % (offset[0],offset[0]+textsize[0],offset[1],offset[1]+textsize[1])
 421
 422                 del draw_bg
 423                 del draw_high
 424                 fd=open(menubgpngfilename,"w")
 425                 im_bg.save(fd,"PNG")
 426                 fd.close()
 427                 fd=open(highlightpngfilename,"w")
 428                 im_high.save(fd,"PNG")
 429                 fd.close()
 430
 431                 png2yuvTask(job, menubgpngfilename, job.workspace+"/dvdmenubg"+str(menu_count)+".yuv")
 432                 menubgm2vfilename = job.workspace+"/dvdmenubg"+str(menu_count)+".mv2"
 433                 mpeg2encTask(job, job.workspace+"/dvdmenubg"+str(menu_count)+".yuv", menubgm2vfilename)
 434                 menubgmpgfilename = job.workspace+"/dvdmenubg"+str(menu_count)+".mpg"
 435                 MplexTask(job, outputfile=menubgmpgfilename, inputfiles = [menubgm2vfilename, job.project.menuaudio])
 436
 437                 spuxml += """
 438         </spu>
 439         </stream>
 440         </subpictures>"""
 441                 spuxmlfilename = job.workspace+"/spumux"+str(menu_count)+".xml"
 442                 f = open(spuxmlfilename, "w")
 443                 f.write(spuxml)
 444                 f.close()
 445
 446                 menuoutputfilename = job.workspace+"/dvdmenu"+str(menu_count)+".mpg"
 447                 spumuxTask(job, spuxmlfilename, menubgmpgfilename, menuoutputfilename)
 448
 449 def CreateAuthoringXML(job):
 450         nr_titles = len(job.project.titles)
 451         titles_per_menu = getTitlesPerMenu(nr_titles)
 452         authorxml = """<?xml version="1.0" encoding="utf-8"?>
 453 <dvdauthor dest="%s">
 454    <vmgm>
 455       <menus>
 456          <pgc>
 457             <vob file="%s" />
 458             <post> jump titleset 1 menu; </post>
 459          </pgc>
 460       </menus>
 461    </vmgm>
 462    <titleset>
 463       <menus>
 464          <video aspect="4:3"/>"""% (job.workspace+"/dvd", job.project.vmgm)
 465         for menu_count in range(1 , job.nr_menus+1):
 466                 if menu_count == 1:
 467                         authorxml += """
 468          <pgc entry="root">"""
 469                 else:
 470                         authorxml += """
 471          <pgc>"""
 472                 menu_start_title = (menu_count-1)*titles_per_menu + 1
 473                 menu_end_title = (menu_count)*titles_per_menu + 1
 474                 if menu_end_title > nr_titles:
 475                         menu_end_title = nr_titles+1
 476                 for i in range( menu_start_title , menu_end_title ):
 477                         authorxml += """
 478             <button name="button%s">jump title %d;</button>""" % (str(i).zfill(2), i)
 479
 480                 if menu_count > 1:
 481                         authorxml += """
 482             <button name="button_prev">jump menu %d;</button>""" % (menu_count-1)
 483
 484                 if menu_count < job.nr_menus:
 485                         authorxml += """
 486             <button name="button_next">jump menu %d;</button>""" % (menu_count+1)
 487
 488                 menuoutputfilename = job.workspace+"/dvdmenu"+str(menu_count)+".mpg"
 489                 authorxml += """
 490             <vob file="%s" pause="inf"/>
 491          </pgc>""" % menuoutputfilename
 492         authorxml += """
 493       </menus>
 494       <titles>"""
 495         for i in range( nr_titles ):
 496                 chapters = ','.join(["%d:%02d:%02d.%03d" % (p / (90000 * 3600), p % (90000 * 3600) / (90000 * 60), p % (90000 * 60) / 90000, (p % 90000) / 90) for p in job.project.titles[i].chaptermarks])
 497
 498                 title_no = i+1
 499                 title_filename = job.workspace + "/dvd_title_%d.mpg" % (title_no)
 500
 501                 if job.menupreview:
 502                         LinkTS(job, job.project.vmgm, title_filename)
 503                 else:
 504                         MakeFifoNode(job, title_no)
 505
 506                 vob_tag = """file="%s" chapters="%s" />""" % (title_filename, chapters)
 507
 508                 if title_no < nr_titles:
 509                         post_tag = "jump title %d;" % ( title_no+1 )
 510                 else:
 511                         post_tag = "call vmgm menu 1;"
 512                 authorxml += """
 513          <pgc>
 514             <vob %s
 515             <post> %s </post>
 516          </pgc>""" % (vob_tag, post_tag)
 517
 518         authorxml += """
 519      </titles>
 520    </titleset>
 521 </dvdauthor>
 522 """
 523         f = open(job.workspace+"/dvdauthor.xml", "w")
 524         f.write(authorxml)
 525         f.close()
 526
 527 class DVDJob(Job):
 528         def __init__(self, project, menupreview=False):
 529                 Job.__init__(self, "DVD Burn")
 530                 self.project = project
 531                 from time import strftime
 532                 from Tools.Directories import SCOPE_HDD, resolveFilename, createDir
 533                 new_workspace = resolveFilename(SCOPE_HDD) + "tmp/" + strftime("%Y%m%d%H%M%S")
 534                 createDir(new_workspace)
 535                 self.workspace = new_workspace
 536                 self.project.workspace = self.workspace
 537                 self.menupreview = menupreview
 538                 self.conduct()
 539
 540         def conduct(self):
 541                 CreateMenus(self)
 542                 CreateAuthoringXML(self)
 543
 544                 totalsize = 50*1024*1024 # require an extra safety 50 MB
 545                 maxsize = 0
 546                 for title in self.project.titles:
 547                         titlesize = title.estimatedDiskspace
 548                         if titlesize > maxsize: maxsize = titlesize
 549                         totalsize += titlesize
 550                 diskSpaceNeeded = totalsize + maxsize
 551                 print "diskSpaceNeeded:", diskSpaceNeeded
 552
 553                 DVDAuthorTask(self, diskSpaceNeeded)
 554
 555                 nr_titles = len(self.project.titles)
 556
 557                 if self.menupreview:
 558                         PreviewTask(self)
 559                 else:
 560                         for self.i in range(nr_titles):
 561                                 title = self.project.titles[self.i]
 562                                 link_name =  self.workspace + "/source_title_%d.ts" % (self.i+1)
 563                                 title_filename = self.workspace + "/dvd_title_%d.mpg" % (self.i+1)
 564                                 LinkTS(self, title.inputfile, link_name)
 565                                 demux = DemuxTask(self, link_name)
 566                                 MplexTask(self, outputfile=title_filename, demux_task=demux)
 567                                 RemoveESFiles(self, demux)
 568                         WaitForResidentTasks(self)
 569                         PreviewTask(self)
 570                         BurnTask(self)
 571                 #RemoveDVDFolder(self)
 572
 573 def Burn(session, project):
 574         print "burning cuesheet!"
 575         j = DVDJob(project)
 576         job_manager.AddJob(j)
 577         return j
 578
 579 def PreviewMenu(session, project):
 580         print "preview DVD menu!"
 581         j = DVDJob(project, menupreview=True)
 582         job_manager.AddJob(j)
 583         return j