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Post #114342

Author
MaximRecoil
Parent topic
Info: Fixing the ESB TR47 4 second black screen
Link to post in topic
https://originaltrilogy.com/post/id/114342/action/topic#114342
Date created
12-Jun-2005, 5:42 AM
Originally posted by: Darth Mallwalker
Soon we'll need a sticky index thread to list all the other threads covering this topic:

http://originaltrilogy.com/forum/messageview.cfm?catid=9&threadid=2495
http://originaltrilogy.com/forum/messageview.cfm?catid=9&threadid=2326
http://originaltrilogy.com/forum/messageview.cfm?catid=9&threadid=1307


Seriously though, the third link might help to jog RowMan's memory (scroll down to October 03)
This is interesting; from that third link:
Yeah, I got it down to 1 frame, it's still there, BUT is only as bad as a layer change now, which I can live with. I extracted the whole thing as an MPEG2, then edited it in TMPEGDVD. As it has been noted, unfortunetly you WILL NOT be able to get any closer than 1 frame unless you have access to the original, uncompressed footage, OR go back and recapture the whole movie from LD again. You can cut out exactly on the shot change, but cutting back in gives you the last frame of the gap. Whoever did the encoding (TR47 admits it's not his work, he's just selling them), ended up with that last black frame being an I or P or B frame (I can never remember which is which ), so for the file to work as an MPEG2, it HAS to remain. On the whole, I'd definetly say it was worth the little time it took to fix.

Judging from that (I haven't read all the threads yet), does this mean I am the first one here to come up with a perfect edit of the original ESB TR47 disc? What with all the new stuff out there and "X0" on the horizon, I guess I am a dollar short and a day late though, lol.

Technically he is right about what he says there, but he is not taking into account software that can work around the problem by combining a small amount of re-encoding with copying. If you watch the dialog box as VideoReDo is saving the file, it is saving it in two parts, part 1 = the beginning of the movie up until the point that you started the cut and part 2 = from the point that the cut ended through to the end of the movie. Anyway, as you watch, it says "fast frame copy part 1" or something like that and then for like a second, it changes its dialog to say "encoding" and then it goes to saying "fast frame copy part 2" (it only takes about 10 minutes to save the entire 4.36 GB file on my machine). Apparently it has to re-encode right at the point that it is joining "part 1" and "part 2" together, probably to put an I-frame in the right location. This bit of a workaround that is built into the program allows you to make a cut on any frame and still leave the vast majority of the video stream untouched when you save it. It seems like a fairly unique procedure to me, as everything else seems to mandate that you make edits only on I-frames or else it wants to re-encode the entire thing. With this, only a frame or two gets re-encoded (just a guess judging from the very short time that the dialog says "encoding") and the rest is a bit-for-bit copy.