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Douglas Pollard schrieb:
Well got up about 4am, couldn't sleep. Started my computer and then
Cinelerra. It came up and then I screwed up, I clicked save backup. Then I
clicked Load back up. I guess it had been written over by the back up with
another back up of a blank time line.
Hi Doug,
unfortunately Cinelerra acts quite dumb regarding to this "backup"
function. This is supposed rather to work like a last safety net
when the application crashes and you hadn't saved your session beforehand
for a longer period of time.
Basically, when you select "save backup" it writes your session into
.bcast/backup.xml
You rarely need to do this manually, because Cinelerra does this automatically
very often, thus this file should always contain a relatively recent state of
your work.
But unfortunately, according to your description, you
1) screwed up
2) wrote that screwed up state into .bcast/backup.xml
(by selecting "save backup")
3) "load backup" now just loads back this screwed up state into your sesison.
Now the chances if we're able to rescue anything of your work depend on some
very specific circumstances:
- - do you back up your real session.xml manually from time to time? (guess no)
- - did you save your session after you screwed up and before you saved/loaded
backup? or did you save your session after loading the backup? or didn't
you save at all?
The last question determines if there is a non-screwed up version of your
session left anywhere, or not. If you *did* save *after* screwing up, you
overwrote the last non-corrupted state with the current corrupted state.
If moreover you don't have any manual backup, then actually all you have
now is the corrupted state of the session.
If you did *not* save after screwing up, then the original session.xml should
still contain the (hopefully not corrupted) state at the time you did the
last session save (Menu "file>save" or press ctrl-s)
I loaded the file for my video and it put the video files back into
resourses. But it was not on the timeline so I have resourses but no video.
This might indicate two different situations
(a) Cinelerra already lost the actual edit (contents of the timeline)
when you "screwed up"
(b) Your edit (contents of the timeline) contained in the backup is somewhat
corrupted, so Cinelerra discarded information on load-back in order to
rescue what it was still able to interpret.
Again, what this means for your chances of a recovery largely depends on
what you did *after* loading the corrupted state back ("load backup")
- - if you did *not* save it again, than the backup might even contain more
information, which Cinelerra isn't able to interpret, but which we might
be able to repair manually
- - but if you *did* save it over the normal session or the backup, then you
really saved an empty timeline and thus overwrote any information which
might still have been there.
I had several years ago used Adobie Premeir and In a situation like this I
went to the Premeir files and loaded a file of the movi and there it was on
the timeline. I'm guessing they may have been rendered while saving? Do I
need to render my work every time I get ready to stop working for the day?
Obviously you can do so and this would at least leave you with a render
of your work (but without the possibility to change anything).
But what is much more important: you should manually copy your session.xml
file at that point somewhere as a backup. Include the date in the name!
Only the session.xml (no need to copy media files, as Cinelerra never modifies
your source media files)
This definitively is a practice I'd recommend, as this would leave you
with a snapshot of your work every day.
All this seems to go right over my head. I am wondering if anyone knows of a
tutorial covering this specific problem. If not and if I ever figure this
out I likely ought to write one and post it online someplace. I can't be the
dumbest person trying to use Cinelerra and maybe I can help some dumber than
me one? In the meantime please help :-(
I can understand how you feel, after maybe having lost quite some work.
Certainly you're not the "dumb person" here, but rather Cinelerra should
handle these fundamental security matters a little bit more intelligently.
Anyway, the good news, when compared with Premiere, is that Cinelerra saves
the session state, i.e. all the edits and tweaks you did in the course of
your work, into a text based session file
Above, I sloppily called this file "session.xml". But actually it bears
the name you gave the session when you created it and saved it the first time.
Just the extension "xml" is fixed. Also, the backup, which is always
"~/.bcast/backup.xml", is stored in the same, text-based format.
You could open these files with any plain text editor ("gedit" on gnome,
"kate", mouse pad or whatever), look into them and maybe repair things.
Also, if you think there is one of these session files which actually
still might contain some traces of your work to be recovered, you may
well send me these files by private email, I'll have a look if I can
determine the problem
hope that helps,
Hermann V.
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