-import DVDProject, TitleList, TitleCutter
-
+import DVDProject, TitleList, TitleCutter, TitleProperties, ProjectSettings, DVDToolbox, Process
from Screens.Screen import Screen
+from Screens.ChoiceBox import ChoiceBox
+from Screens.InputBox import InputBox
+from Screens.MessageBox import MessageBox
+from Screens.HelpMenu import HelpableScreen
+from Screens.TaskView import JobView
+from Components.Task import job_manager
from Components.ActionMap import HelpableActionMap, ActionMap
from Components.Sources.List import List
from Components.Sources.StaticText import StaticText
-from enigma import eListboxPythonMultiContent, gFont, RT_HALIGN_LEFT
-
-class TitleList(Screen):
+from Components.Sources.Progress import Progress
+from Components.MultiContent import MultiContentEntryText
+from Components.Label import MultiColorLabel
+from enigma import gFont, RT_HALIGN_LEFT, RT_HALIGN_RIGHT
+from Tools.Directories import resolveFilename, SCOPE_PLUGINS
+class TitleList(Screen, HelpableScreen):
skin = """
- <screen position="90,83" size="560,445" title="DVD Tool" >
- <ePixmap pixmap="skin_default/buttons/red.png" position="0,0" size="140,40" alphatest="on" />
- <ePixmap pixmap="skin_default/buttons/green.png" position="140,0" size="140,40" alphatest="on" />
- <ePixmap pixmap="skin_default/buttons/yellow.png" position="280,0" size="140,40" alphatest="on" />
- <ePixmap pixmap="skin_default/buttons/blue.png" position="420,0" size="140,40" alphatest="on" />
- <widget source="key_red" render="Label" position="0,0" zPosition="1" size="140,40" font="Regular;20" halign="center" valign="center" backgroundColor="#9f1313" transparent="1" />
- <widget source="key_green" render="Label" position="140,0" zPosition="1" size="140,40" font="Regular;20" halign="center" valign="center" backgroundColor="#1f771f" transparent="1" />
- <widget source="key_yellow" render="Label" position="280,0" zPosition="1" size="140,40" font="Regular;20" halign="center" valign="center" backgroundColor="#a08500" transparent="1" />
- <widget source="key_blue" render="Label" position="420,0" zPosition="1" size="140,40" font="Regular;20" halign="center" valign="center" backgroundColor="#18188b" transparent="1" />
- <widget source="title_label" render="Label" position="6,48" size="436,24" font="Regular;18" />
- <widget source="titles" render="Listbox" scrollbarMode="showOnDemand" position="6,72" size="400,350">
- <convert type="StaticMultiList" />
- </widget>
- <widget source="statusbar" render="Label" position="6,422" size="436,24" font="Regular;18" halign="left" />
+ <screen name="TitleList" position="center,center" size="560,470" title="DVD Tool" >
+ <ePixmap pixmap="skin_default/buttons/red.png" position="0,0" size="140,40" alphatest="on" />
+ <ePixmap pixmap="skin_default/buttons/green.png" position="140,0" size="140,40" alphatest="on" />
+ <ePixmap pixmap="skin_default/buttons/yellow.png" position="280,0" size="140,40" alphatest="on" />
+ <ePixmap pixmap="skin_default/buttons/blue.png" position="420,0" size="140,40" alphatest="on" />
+ <widget source="key_red" render="Label" position="0,0" zPosition="1" size="140,40" font="Regular;19" halign="center" valign="center" backgroundColor="#9f1313" transparent="1" />
+ <widget source="key_green" render="Label" position="140,0" zPosition="1" size="140,40" font="Regular;19" halign="center" valign="center" backgroundColor="#1f771f" transparent="1" />
+ <widget source="key_yellow" render="Label" position="280,0" zPosition="1" size="140,40" font="Regular;19" halign="center" valign="center" backgroundColor="#a08500" transparent="1" />
+ <widget source="key_blue" render="Label" position="420,0" zPosition="1" size="140,40" font="Regular;19" halign="center" valign="center" backgroundColor="#18188b" transparent="1" />
+ <widget source="title_label" render="Label" position="10,48" size="540,38" font="Regular;18" transparent="1" />
+ <widget source="error_label" render="Label" position="10,48" size="540,296" zPosition="3" font="Regular;20" transparent="1" />
+ <widget source="titles" render="Listbox" scrollbarMode="showOnDemand" position="10,86" size="546,296" zPosition="3" transparent="1" >
+ <convert type="TemplatedMultiContent">
+ {"template": [
+ MultiContentEntryText(pos = (0, 0), size = (360, 20), font = 0, flags = RT_HALIGN_LEFT, text = 1), # index 1 Title,
+ MultiContentEntryText(pos = (0, 20), size = (360, 17), font = 1, flags = RT_HALIGN_LEFT, text = 2), # index 2 description,
+ MultiContentEntryText(pos = (366, 6), size = (152, 20), font = 1, flags = RT_HALIGN_RIGHT, text = 3), # index 3 channel,
+ MultiContentEntryText(pos = (366, 20), size = (102, 17), font = 1, flags = RT_HALIGN_RIGHT, text = 4), # index 4 begin time,
+ MultiContentEntryText(pos = (470, 20), size = (48, 20), font = 1, flags = RT_HALIGN_RIGHT, text = 5), # index 5 duration,
+ ],
+ "fonts": [gFont("Regular", 20), gFont("Regular", 14)],
+ "itemHeight": 37
+ }
+ </convert>
+ </widget>
+ <ePixmap pixmap="skin_default/div-h.png" position="0,390" zPosition="10" size="560,2" />
+ <ePixmap pixmap="skin_default/buttons/key_menu.png" position="10,394" size="35,25" alphatest="on" />
+ <widget source="hint" render="Label" position="50,396" size="540,22" font="Regular;18" halign="left" />
+ <widget name="medium_label" position="10,420" size="540,22" font="Regular;18" halign="left" foregroundColors="#FFFFFF,#FFFF00,#FF0000" />
+ <widget source="space_bar_single" render="Progress" position="10,446" size="270,24" borderWidth="1" zPosition="2" backgroundColor="#254f7497" />
+ <widget source="space_label_single" render="Label" position="10,449" size="270,22" zPosition="3" font="Regular;18" halign="center" transparent="1" foregroundColor="#000000" />
+ <widget source="space_bar_dual" render="Progress" position="10,446" size="540,24" borderWidth="1" backgroundColor="#254f7497" />
+ <widget source="space_label_dual" render="Label" position="10,449" size="540,22" zPosition="2" font="Regular;18" halign="center" transparent="1" foregroundColor="#000000" />
+
</screen>"""
def __init__(self, session, project = None):
Screen.__init__(self, session)
-
- if project is not None:
- self.project = project
- else:
- self.newProject()
-
+ HelpableScreen.__init__(self)
+
self["titleactions"] = HelpableActionMap(self, "DVDTitleList",
{
- "addTitle": (self.addTitle, _("Add a new title"), _("Add title...")),
- "editTitle": (self.editTitle, _("Edit current title"), _("Edit title...")),
+ "addTitle": (self.addTitle, _("Add a new title"), _("Add title")),
+ "titleProperties": (self.titleProperties, _("Properties of current title"), _("Title properties")),
"removeCurrentTitle": (self.removeCurrentTitle, _("Remove currently selected title"), _("Remove title")),
- "saveProject": (self.saveProject, _("Save current project to disk"), _("Save...")),
- "burnProject": (self.burnProject, _("Burn DVD"), _("Burn")),
+ "settings": (self.settings, _("Collection settings"), _("Settings")),
+ "burnProject": (self.askBurnProject, _("Burn DVD"), _("Burn DVD")),
})
- self["key_red"] = StaticText(_("Add title"))
- self["key_green"] = StaticText(_("Edit title"))
- self["key_yellow"] = StaticText(_("Remove title"))
- self["key_blue"] = StaticText(_("Save"))
-
- self["title_label"] = StaticText(_("Table of content to be burned to DVD:"))
- self["statusbar"] = StaticText(_("When complete, press Key 0 to burn the collection!"))
+ self["MovieSelectionActions"] = HelpableActionMap(self, "MovieSelectionActions",
+ {
+ "contextMenu": (self.showMenu, _("menu")),
+ })
self["actions"] = ActionMap(["OkCancelActions"],
{
"cancel": self.leave
})
- #Action("addTitle", self.addTitle)
-
- self["titles"] = List(list = [ ], enableWrapAround = True, item_height=30, fonts = [gFont("Regular", 20)])
- self.updateTitleList()
-
- #self["addTitle"] = ActionButton("titleactions", "addTitle")
- #self["editTitle"] = ActionButton("titleactions", "editTitle")
- #self["removeCurrentTitle"] = ActionButton("titleactions", "removeCurrentTitle")
- #self["saveProject"] = ActionButton("titleactions", "saveProject")
- #self["burnProject"] = ActionButton("titleactions", "burnProject")
+ self["key_red"] = StaticText()
+ self["key_green"] = StaticText(_("Add title"))
+ self["key_yellow"] = StaticText()
+ self["key_blue"] = StaticText(_("Settings"))
+
+ self["title_label"] = StaticText()
+ self["error_label"] = StaticText()
+ self["space_label_single"] = StaticText()
+ self["space_label_dual"] = StaticText()
+ self["hint"] = StaticText(_("Advanced Options"))
+ self["medium_label"] = MultiColorLabel()
+ self["space_bar_single"] = Progress()
+ self["space_bar_dual"] = Progress()
+
+ self["titles"] = List([])
+ self.previous_size = 0
+ if project is not None:
+ self.project = project
+ else:
+ self.newProject()
+ self.onLayoutFinish.append(self.layoutFinished)
+
+ def layoutFinished(self):
+ self.setTitle(_("DVD Titlelist"))
+
+ def checkBackgroundJobs(self):
+ for job in job_manager.getPendingJobs():
+ print "type(job):", type(job)
+ print "Process.DVDJob:", Process.DVDJob
+ if type(job) == Process.DVDJob:
+ self.backgroundJob = job
+ return
+ self.backgroundJob = None
+
+ def showMenu(self):
+ menu = []
+ self.checkBackgroundJobs()
+ if self.backgroundJob:
+ j = self.backgroundJob
+ menu.append(("%s: %s (%d%%)" % (j.getStatustext(), j.name, int(100*j.progress/float(j.end))), self.showBackgroundJob))
+ menu.append((_("DVD media toolbox"), self.toolbox))
+ if self.project.settings.output.getValue() == "dvd":
+ if len(self["titles"].list):
+ menu.append((_("Burn DVD"), self.burnProject))
+ elif self.project.settings.output.getValue() == "iso":
+ menu.append((_("Create DVD-ISO"), self.burnProject))
+ menu.append((_("Burn existing image to DVD"), self.selectImage))
+ if len(self["titles"].list):
+ menu.append((_("Preview menu"), self.previewMenu))
+ menu.append((_("Edit chapters of current title"), self.editTitle))
+ menu.append((_("Reset and renumerate title names"), self.resetTitles))
+ menu.append((_("Exit"), self.leave))
+ self.session.openWithCallback(self.menuCallback, ChoiceBox, title="", list=menu)
+
+ def menuCallback(self, choice):
+ if choice:
+ choice[1]()
+
+ def showBackgroundJob(self):
+ job_manager.in_background = False
+ self.session.openWithCallback(self.JobViewCB, JobView, self.backgroundJob)
+ self.backgroundJob = None
+
+ def titleProperties(self):
+ if self.getCurrentTitle():
+ self.session.openWithCallback(self.updateTitleList, TitleProperties.TitleProperties, self, self.project, self["titles"].getIndex())
+
+ def selectImage(self):
+ self.session.openWithCallback(self.burnISO, ProjectSettings.FileBrowser, "image", self.project.settings)
def newProject(self):
self.project = DVDProject.DVDProject()
- self.project.titles = [ ]
+ if self.loadTemplate():
+ self.project.session = self.session
+ self.settingsCB()
def addTitle(self):
from Screens.MovieSelection import MovieSelection
- self.session.openWithCallback(self.selectedSource, MovieSelection)
-
- def selectedSource(self, source):
+ from Components.ActionMap import HelpableActionMap
+ class DVDMovieSelection(MovieSelection):
+ skin = """<screen name="DVDMovieSelection" position="center,center" size="560,445" title="Select a movie">
+ <ePixmap pixmap="skin_default/buttons/red.png" position="0,0" size="140,40" alphatest="on" />
+ <ePixmap pixmap="skin_default/buttons/green.png" position="140,0" size="140,40" alphatest="on" />
+ <ePixmap pixmap="skin_default/buttons/yellow.png" position="280,0" size="140,40" alphatest="on" />
+ <widget source="key_red" render="Label" position="0,0" zPosition="1" size="140,40" font="Regular;19" halign="center" valign="center" backgroundColor="#9f1313" transparent="1" />
+ <widget source="key_green" render="Label" position="140,0" zPosition="1" size="140,40" font="Regular;19" halign="center" valign="center" backgroundColor="#1f771f" transparent="1" />
+ <widget source="key_yellow" render="Label" position="280,0" zPosition="1" size="140,40" font="Regular;19" halign="center" valign="center" backgroundColor="#a08500" transparent="1" />
+ <widget name="waitingtext" position="0,45" size="560,395" zPosition="4" font="Regular;22" halign="center" valign="center" />
+ <widget name="list" position="5,40" size="550,375" zPosition="2" scrollbarMode="showOnDemand" />
+ <widget name="DescriptionBorder" pixmap="skin_default/border_eventinfo.png" position="0,316" zPosition="1" size="560,103" transparent="1" alphatest="on" />
+ <widget source="Service" render="Label" position="5,318" zPosition="1" size="480,35" font="Regular;17" foregroundColor="#cccccc">
+ <convert type="MovieInfo">ShortDescription</convert>
+ </widget>
+ <widget source="Service" render="Label" position="495,318" zPosition="1" size="60,22" font="Regular;17" halign="right">
+ <convert type="ServiceTime">Duration</convert>
+ <convert type="ClockToText">AsLength</convert>
+ </widget>
+ <widget source="Service" render="Label" position="380,337" zPosition="2" size="175,22" font="Regular;17" halign="right">
+ <convert type="MovieInfo">RecordServiceName</convert>
+ </widget>
+ <widget source="Service" render="Label" position="5,357" zPosition="1" size="550,58" font="Regular;19">
+ <convert type="EventName">ExtendedDescription</convert>
+ </widget>
+ <widget name="freeDiskSpace" position="10,425" size="540,20" font="Regular;19" valign="center" halign="right" />
+ </screen>"""
+ def __init__(self, session):
+ MovieSelection.__init__(self, session)
+ self["key_red"] = StaticText(_("Close"))
+ self["key_green"] = StaticText(_("Add"))
+ self["key_yellow"] = StaticText(_("Edit title"))
+ self["ColorActions"] = HelpableActionMap(self, "ColorActions",
+ {
+ "red": (self.close, _("Close title selection")),
+ "green": (self.insertWithoutEdit, ("insert without cutlist editor")),
+ "yellow": (self.movieSelected, _("Add a new title"))
+ })
+ def updateTags(self):
+ pass
+ def doContext(self):
+ print "context menu forbidden inside DVDBurn to prevent calling multiple instances"
+ def insertWithoutEdit(self):
+ current = self.getCurrent()
+ if current is not None:
+ current.edit = False
+ self.close(current)
+ def movieSelected(self):
+ current = self.getCurrent()
+ if current is not None:
+ current.edit = True
+ self.close(current)
+ self.session.openWithCallback(self.selectedSource, DVDMovieSelection)
+
+ def selectedSource(self, source = None):
if source is None:
return None
+ if not source.getPath().endswith(".ts"):
+ self.session.open(MessageBox,text = _("You can only burn Dreambox recordings!"), type = MessageBox.TYPE_ERROR)
+ return None
t = self.project.addService(source)
- self.updateTitleList()
-
- self.editTitle(t)
+ try:
+ editor = source.edit
+ except AttributeError:
+ editor = True
+ self.editTitle(t, editor)
def removeCurrentTitle(self):
title = self.getCurrentTitle()
+ self.removeTitle(title)
+
+ def removeTitle(self, title):
if title is not None:
self.project.titles.remove(title)
self.updateTitleList()
- def saveProject(self):
- pass
+ def toolbox(self):
+ self.session.open(DVDToolbox.DVDToolbox)
+
+ def settings(self):
+ self.session.openWithCallback(self.settingsCB, ProjectSettings.ProjectSettings, self.project)
- def burnProject(self):
- print "producing final cue sheet:"
- cue = self.produceFinalCuesheet()
- import Process
- job = Process.Burn(self.session, cue)
- print cue
- from Screens.TaskView import JobView
- self.session.open(JobView, job)
+ def settingsCB(self, update=True):
+ if not update:
+ return
+ self.updateTitleList()
+
+ def loadTemplate(self):
+ filename = resolveFilename(SCOPE_PLUGINS)+"Extensions/DVDBurn/DreamboxDVD.ddvdp.xml"
+ if self.project.load(filename):
+ self["error_label"].setText("")
+ return True
+ else:
+ self["error_label"].setText(self.project.error)
+ return False
+
+ def askBurnProject(self):
+ if len(self["titles"].list):
+ self.session.openWithCallback(self.burnProject,MessageBox,text = _("Do you want to burn this collection to DVD medium?"), type = MessageBox.TYPE_YESNO)
+
+ def burnProject(self, answer=True):
+ if not answer:
+ return
+ if self.project.settings.authormode.getValue() == "data_ts":
+ job = Process.DVDdataJob(self.project)
+ job_manager.AddJob(job)
+ job_manager.in_background = False
+ self.session.openWithCallback(self.JobViewCB, JobView, job)
+ else:
+ job = Process.DVDJob(self.project)
+ job_manager.AddJob(job)
+ job_manager.in_background = False
+ self.session.openWithCallback(self.JobViewCB, JobView, job)
+
+ def burnISO(self, path, scope, configRef):
+ if path:
+ job = Process.DVDisoJob(self.project, path)
+ job_manager.AddJob(job)
+ job_manager.in_background = False
+ self.session.openWithCallback(self.JobViewCB, JobView, job)
+
+ def JobViewCB(self, in_background):
+ job_manager.in_background = in_background
+
+ def previewMenu(self):
+ job = Process.DVDJob(self.project, menupreview=True)
+ job_manager.in_background = False
+ job_manager.AddJob(job)
def updateTitleList(self):
- res = [ ]
+ list = [ ]
for title in self.project.titles:
- a = [ title, (eListboxPythonMultiContent.TYPE_TEXT, 0, 10, 400, 50, 0, RT_HALIGN_LEFT, title.name) ]
- res.append(a)
-
- self["titles"].list = res
+ list.append((title, title.properties.menutitle.getValue(), title.properties.menusubtitle.getValue(), title.DVBchannel, title.formatDVDmenuText("$D.$M.$Y, $T", 0), title.formatDVDmenuText("$l", 0)))
+ self["titles"].list = list
+ self.updateSize()
+ if len(list):
+ self["key_red"].text = _("Remove title")
+ self["key_yellow"].text = _("Title properties")
+ self["title_label"].text = _("Table of content for collection") + " \"" + self.project.settings.name.getValue() + "\":"
+ else:
+ self["key_red"].text = ""
+ self["key_yellow"].text = ""
+ self["title_label"].text = _("Please add titles to the compilation.")
+
+ def updateSize(self):
+ size = self.project.size/(1024*1024)
+ MAX_DL = self.project.MAX_DL-100
+ MAX_SL = self.project.MAX_SL-100
+ print "updateSize:", size, "MAX_DL:", MAX_DL, "MAX_SL:", MAX_SL
+ if size > MAX_DL:
+ percent = 100 * size / float(MAX_DL)
+ self["space_label_dual"].text = "%d MB (%.2f%%)" % (size, percent)
+ self["space_bar_dual"].value = int(percent)
+ self["space_bar_single"].value = 100
+ self["space_label_single"].text = ""
+ self["medium_label"].setText(_("Exceeds dual layer medium!"))
+ self["medium_label"].setForegroundColorNum(2)
+ if self.previous_size < MAX_DL:
+ self.session.open(MessageBox,text = _("Exceeds dual layer medium!"), type = MessageBox.TYPE_ERROR)
+ elif size > MAX_SL:
+ percent = 100 * size / float(MAX_DL)
+ self["space_label_dual"].text = "%d MB (%.2f%%)" % (size, percent)
+ self["space_bar_dual"].value = int(percent)
+ self["space_bar_single"].value = 100
+ self["space_label_single"].text = ""
+ self["medium_label"].setText(_("Required medium type:") + " " + _("DUAL LAYER DVD") + ", %d MB " % (MAX_DL - size) + _("free"))
+ self["medium_label"].setForegroundColorNum(1)
+ if self.previous_size < MAX_SL:
+ self.session.open(MessageBox, text = _("Your collection exceeds the size of a single layer medium, you will need a blank dual layer DVD!"), timeout = 10, type = MessageBox.TYPE_INFO)
+ elif size < MAX_SL:
+ percent = 100 * size / float(MAX_SL)
+ self["space_label_single"].text = "%d MB (%.2f%%)" % (size, percent)
+ self["space_bar_single"].value = int(percent)
+ self["space_bar_dual"].value = 0
+ self["space_label_dual"].text = ""
+ self["medium_label"].setText(_("Required medium type:") + " " + _("SINGLE LAYER DVD") + ", %d MB " % (MAX_SL - size) + _("free"))
+ self["medium_label"].setForegroundColorNum(0)
+ self.previous_size = size
def getCurrentTitle(self):
t = self["titles"].getCurrent()
return t and t[0]
- def editTitle(self, title = None):
+ def editTitle(self, title = None, editor = True):
t = title or self.getCurrentTitle()
if t is not None:
self.current_edit_title = t
- self.session.openWithCallback(self.titleEditDone, TitleCutter.TitleCutter, t)
+ if editor:
+ self.session.openWithCallback(self.titleEditDone, TitleCutter.TitleCutter, t)
+ else:
+ self.session.openWithCallback(self.titleEditDone, TitleCutter.CutlistReader, t)
def titleEditDone(self, cutlist):
t = self.current_edit_title
- t.cutlist = cutlist
- print "title edit of %s done, resulting cutlist:" % (t.source.toString()), t.cutlist
-
- def leave(self):
- self.close()
+ t.titleEditDone(cutlist)
+ if t.VideoType != 0:
+ self.session.openWithCallback(self.DVDformatCB,MessageBox,text = _("The DVD standard doesn't support H.264 (HDTV) video streams. Do you want to create a Dreambox format data DVD (which will not play in stand-alone DVD players) instead?"), type = MessageBox.TYPE_YESNO)
+ else:
+ self.updateTitleList()
- def produceFinalCuesheet(self):
- res = [ ]
+ def resetTitles(self):
+ count = 0
for title in self.project.titles:
- path = title.source.getPath()
- print ">>> path:", path
- cutlist = title.cutlist
-
- # our demuxer expects *stricly* IN,OUT lists.
- first = True
- currently_in = False
- CUT_TYPE_IN = 0
- CUT_TYPE_OUT = 1
- CUT_TYPE_MARK = 2
- CUT_TYPE_LAST = 3
-
- accumulated_in = 0
- accumulated_at = 0
- last_in = 0
-
- res_cutlist = [ ]
-
- res_chaptermarks = [0]
-
- for (pts, type) in cutlist:
- if first and type == CUT_TYPE_OUT: # first mark is "out"
- res_cutlist.append(0) # emulate "in" at first
- currently_in = True
-
- first = False
-
- if type == CUT_TYPE_IN and not currently_in:
- res_cutlist.append(pts)
- last_in = pts
- currently_in = True
-
- if type == CUT_TYPE_OUT and currently_in:
- res_cutlist.append(pts)
-
- # accumulate the segment
- accumulated_in += pts - last_in
- accumulated_at = pts
- currently_in = False
+ count += 1
+ title.initDVDmenuText(count)
+ self.updateTitleList()
- if type == CUT_TYPE_MARK and currently_in:
- # relocate chaptermark against "in" time. This is not 100% accurate,
- # as the in/out points are not.
- res_chaptermarks.append(pts - accumulated_at + accumulated_in)
+ def DVDformatCB(self, answer):
+ t = self.current_edit_title
+ if answer == True:
+ self.project.settings.authormode.setValue("data_ts")
+ self.updateTitleList()
+ else:
+ self.removeTitle(t)
- res.append( (path, res_cutlist, res_chaptermarks) )
+ def leave(self, close = False):
+ if not len(self["titles"].list) or close:
+ self.close()
+ else:
+ self.session.openWithCallback(self.exitCB, MessageBox,text = _("Your current collection will get lost!") + "\n" + _("Do you really want to exit?"), type = MessageBox.TYPE_YESNO)
- return res
+ def exitCB(self, answer):
+ print "exitCB", answer
+ if answer is not None and answer:
+ self.close()
\ No newline at end of file
git.cweiske.de / enigma2.git / blobdiff