DVD Shrink Reauthor

[Sbofen]

Has anyone noticed when reauthoring, that you can crop (? set start/end?) with 2 different compression levels?

Normally I drag 2 instances of my movie, 1 for the main movie and crop it. The other for the credits and compress them to stills.

I noticed if I drag 1 instance of the movie up, set start/end, change your compression level, then move the start/end to the original. You'll end up with 2 compression levels.

[mrbass]

yes we've noticed. I like to call it Little House of Chop Shop.

http://forum.digital-digest.com/showthread.php?&threadid=21884

[maa]

I noticed if I drag 1 instance of the movie up, set start/end, change your compression level, then move the start/end to the original. You'll end up with 2 compression levels. Thats a really neat trick - dragging in twice results in a multiple VTS output but your method doesn't ! Wonder if you can do this more than once...

[Sbofen]

Thats a really neat trick - dragging in twice results in a multiple VTS output but your method doesn't ! Wonder if you can do this more than once...

Great idea!! YES, I've done it. I tested a trailer for convenience. I set the whole thing to no compression, set start and end to beginning of trailer, changed to level 2. Then I selected the middle part, set to level 5. Then the end to stills.

Finally I set start/end to the whole Title, and it came out with 3 compression levels.

[dvdshrink]

Think of the compression levels being stored as a kind of "bitmap" - then the start/end control just defines which part of the bitmap you are painting.

The smallest unit is one vobu - approx 0.5s of video.

You could set every vobu in the movie to a different compression level, but it would take you a long time ;-)

[luphy]

Here's a wacky idea that I have not tried yet.
Let's say you have a movie that has some some action scenes
that Shrink just can't shrink too well. I wonder if someone
could selectively single that scene out, and choose a lower
compression on it, and allow Shrink to do automatic on the
other two fragmenets of the rest of the movie (before the
action scene, and after).

Can't see any reason for this not working, but I'm not sure if there will be any pauses going from one to the other.

Maybe someone could recommend a movie with a very tough scene to shrink - even for the new ver3.


Oh oh, DVDShrink, I have a small request. :-) When the window
for Start/Stop pops up so you can edit, would it be possible to make
that window larger so that the movie windows could be larger. Thanks!

[Sbofen]

Originally posted by luphy
Here's a wacky idea that I have not tried yet.
Let's say you have a movie that has some some action scenes
that Shrink just can't shrink too well. I wonder if someone
could selectively single that scene out, and choose a lower
compression on it, and allow Shrink to do automatic on the
other two fragmenets of the rest of the movie (before the
action scene, and after).

Can't see any reason for this not working, but I'm not sure if there will be any pauses going from one to the other.

Maybe someone could recommend a movie with a very tough scene to shrink - even for the new ver3.


This would be fantastic! I would opt for the 'tough scenes' to be done with no compression, and the rest automatic though..
Maybe an advanced option to work along side of analysis button in beta3

DVDShrink, thank you again for such a flexible program.


*edit* OOP, my bad, I need to learn to experiment before posting. I guess you can switch from automatic to ratio and adjust from there.

[daehkcid]

dude, can you give me the detail please? ur post #1 is not clear i dont get how to do it.

[Sbofen]

This post was before 3.0beta versions (shrink 2.3)

I noticed if I drag 1 instance of the movie up, set start/end, change your compression level, then move the start/end to the original. You'll end up with 2 compression levels.


Here's an example:

1) Choose Reauthor
2) Drag your title up to the main window
3) Choose Start/End button
4) Move START Frame to beginning of credits
5) Press OK
6) Choose Still Picture compression Level
7) Choose Start/End button again
9) Move START Frame back to beginning
10) Press OK

You now have 2 compression levels

[daehkcid]

What if i want chapter 12 and chapter 17 to be no compress while the rest is 50%.? LEt's say i have 20 chapters. Does that mean, i just put the 'start' cursor everytime going backward?

Hey thnx buddy, i'll test this .. very usefull :)

[Sbofen]

Just set the whole title to 50%.
Then set the start to chapter 12, End to 13 (or choose 13, and press the back button once).
Set compression of this 1 chapter to none.

Do the same with 17. Then, after that's set to none, set the start to the beginning of movie, set the end to the very end.

You'll now have the whole thing set to 50% except for chapters 12 and 17 (which are set to none).

What a great program!:D

[dvdshrink]

The start frame means "start of" and the end frame means "end of"... so if you set both start and end to chapter 12, that will cover the whole chapter.

If you set start frame to chapter 12, and end frame to chapter 13, then you will cover two chapters.

[daehkcid]

Nice, .. :) thxn both of you. The only thing is.. that it can't compress more than 57% and so it does not fit into 4.7gb. Hope we can go lower than 57% in the future.

[Sbofen]

Originally posted by dvdshrink
The start frame means "start of" and the end frame means "end of"... so if you set both start and end to chapter 12, that will cover the whole chapter.

If you set start frame to chapter 12, and end frame to chapter 13, then you will cover two chapters.


AHHHH!! Thank you for clarifying!:p

[Kedirekin]

57% is probably the maximum compression that DVDShrink can achieve on that particular block of video with the transcoding algorythms it uses. I believe DVDShrink (and most of the other transcoding tools) change the quantization in the video stream to shrink the size.

Note that 57% is the maximum for that block of video only. I have seen maximum compression ratios as low as 41% in some of the stuff I've done. I think it depends strongly on the level of quantization in the original - little quantization (i.e. very high quality) in the original gives lots of room for compression, while lots of quantization (low quality) in the original means little room for compression.

Also, I'm willing to bet these maximums are not just chosen at whim, but that they are theoretical maximums. Once your increase the quantization as high as it will go, it can't go any higher. Achieving higher compression requires a full re-encode with new motion vectors and the whole nine yards.

[layer3maniac]

Originally posted by Sbofen
I noticed if I drag 1 instance of the movie up, set start/end, change your compression level, then move the start/end to the original. You'll end up with 2 compression levels.
What "original"??? What am I missing here???

[Sbofen]

Originally posted by layer3maniac
What "original"??? What am I missing here???

Sorry for being confusing, I had meant the original Starting point and Ending point of the VTS.

Just follow the example I posted earlier for a clearer explanation

[layer3maniac]

Ahhhh the original starting AND ending point. That's where I was going wrong. Thanks for the clarification!

[gnipooldd]

Hi all. :)

A guide I made a while ago. ;)

http://www.dvdshrink.info/re-author-advanced.php

[layer3maniac]

Nice guide. But I was trying to figure out how to do it using only one instance (resulting in only one ts). Now that I've figured out how the OP accomplished this, I'm curious to see if this will remove the small gap.

[gnipooldd]

"Nice guide."
Thanks. :)

layer3maniac, maybe I did not read this thread carefully enough, but what is it you're trying to accomplish using only one instance? :confused:

[maa]

You can compress certain portions of the material heavilly and others lightly - and it all stay in one VOB set.
Good for high action scenes to compress lightly and in slow scenes heavier. Makes for better overall quallity!
(oh no - another guide to write...)
:D

[gnipooldd]

I got that bit, maa. :D
It is not possible using DVD Shrink only. :(

But maybe it will allow for "seamless" merging of titles in a future release. ;)

[MackemX]

Originally posted by gnipooldd
I got that bit, maa. :D
It is not possible using DVD Shrink only. :(

But maybe it will allow for "seamless" merging of titles in a future release. ;)

so how would you do it now?

use VOBEdit and join the VOB's?
use an authoring program also?

[layer3maniac]

See, that's the whole point of this thread.It certainly IS possible if you follow the somewhat confusing directions. The only question I have remaining is this - is the end result seamless? In 20 minutes, I'll let you know!

[maa]

Well you obviously still havn't got it. :rolleyes:

This is a big secret but you CAN already do it DVDShrink, read "Sbofens" 4th post and "DVDShrinks" first post in this thread again and again.

edit
Look at it like this:
Start by setting compression to "No Compression"
Open the start/end dialog
Set to start and end markers to chapter 3
Close dialog.
Set compression to 50% then open the dialog again and move to another chapter - say chapter 5.
Close the dialog and see that the compression is now shopwing "no Compression" again - well set it to wehat ever you like and open the dialog again.
If you don't want to compress any more chapters or scenes then drag the sliders to thier outmost positons and close the dialog.


BTW
It would be so easy to understand with ;) WINK ;) but its very time consuming to do and the background thing is confusing me at the moment. I was thinking of changing all my guides to that format but it wont load pictures - only from the clipboard or fresh capture.

[MackemX]

Originally posted by luphy
Here's a wacky idea that I have not tried yet.
Let's say you have a movie that has some some action scenes
that Shrink just can't shrink too well. I wonder if someone
could selectively single that scene out, and choose a lower
compression on it, and allow Shrink to do automatic on the
other two fragmenets of the rest of the movie (before the
action scene, and after).
does Deep analysis not try to do this but not on a grand scale?

if it does then great :), if not then why not? ;)

a 2 pass is the best way to go and if it took one hour, even two hours to do a pass and record the video data to then distribute the compression efficiently then I'd wait :D

quality takes time :cool:

[layer3maniac]

Perhaps you can answer my question before my burner even finishes, maa. IS the end result from using this method seamless?

[gnipooldd]

I get it NOW. :D

Wowow, I've got to try me it. :)

[maa]

IS the end result from using this method seamless?

YEP !!

[layer3maniac]

Does that mean that another one of your killer WINK guides is coming soon? It took me nearly a day to figure out how the OP was saying to do this.

[MackemX]

Originally posted by maa
Well you obviously still havn't got it. :rolleyes:

This is a big secret but you CAN already do it DVDShrink, read "Sbofens" 4th post and "DVDShrinks" first post in this thread again and again.

Look at it like this:
Open the start/end dialog
Set to start and end markers to chapter 3
Compress chapter 3 to 50% then drag the start and end sliders to the beginning and end of the whole film, close the dialog.
[Now you still have the whole film but chapter3 is compressed at 50% the rest NOT compressed]

Open the dialog again and set start /end to chapter 5.
Compress to 25%, drag the start / end points to the start of the first chapter and the end of the last chapter again and close the dialog.
[Now you have chapter 3 at 50% and chapter 5 at 25%, the rest is NOT compressed]

BTW
It would be so easy to understand with ;) WINK ;) but its very time consuming to do and the background thing is confusing me at the moment. I was thinking of changing all my guides to that format but it wont load pictures - only from the clipboard or fresh capture.

Compress chapter 3 to 50% then drag the start and end sliders to the beginning and end of the whole film, close the dialog.

that's the bit I don't get, Is is me missing something or do you have to click OK to close the start/end window to access the % settings?

all I see you have to do is click start/end, choose the chapters you wanna compress, click OK, set % and then move onto next bit and compress it to what you want and finally set start/end to original start/end

[layer3maniac]

Originally posted by maa
YEP !! SWEEEET! :D

[maa]

Originally posted by gnipooldd
I get it NOW. :D
Oh thats good - you can write the guide :D

[MackemX]

Originally posted by maa
Oh thats good - you can write the guide :D
I still don't :confused:

[maa]

Originally posted by MackemX
all I see you have to do is click start/end, choose the chapters you wanna compress, click OK, set % and then move onto next bit
Yes you're right - thats my fault for not having DVD Shrink on this computer - anyway it seems to have helped a bit:D

:D :D

[gnipooldd]

Well I think I do. :D

I'm gonna give it a try and let you know.
If it works I will be making a guide. ;)

[maa]

OK - I'm goga look and re-write the above mess in just a minute ....

[MackemX]

LOL, I knew it was simple :D

you just select the parts you wanna compress differently and do it
finally set the start/end to original start/end

it's as simple as that (or is it?????)

why is everyone so confused????? :confused:

trying it now anyway

[MackemX]

yep, it's as simple as that :D

[gnipooldd]

Simple but not working. ;)

Screen captures coming up in 5.

[layer3maniac]

Trust me, it DOES work.

Here's what I did, step by step, to convert the credits in chapter 32 to stills.

1. Drag one instance into the Reauthor window.
2. Set the compression to Automatic.
3. Click Start End
4. Select Chapter 32 for both the Start Frame Chapter and the End Frame Chapter in the Set Start/End Frames dialog
5. Click OK in the Set Start/End Frames dialog
6. Click Still Pictures to compress the Credits to stills
7. Click Start End again
8. Select Chapter 1 for the Start Frame Chapter and Chapter 32 for the End Frame Chapter in the Set Start/End Frames dialog
9. Click OK in the Set Start/End Frames dialog
10. You will now see TWO compression streams ticked, one at the automatic level (for the main movie) and one as stills (for the credits)

[MackemX]

Originally posted by layer3maniac
Trust me, it DOES work.

Here's what I did, step by step, to convert the credits in chapter 32 to stills.

1. Drag one instance into the Reauthor window.
2. Set the compression to Automatic.
3. Click Start End
4. Select Chapter 32 for both the Start Frame Chapter and the End Frame Chapter in the Set Start/End Frames dialog
5. Click OK in the Set Start/End Frames dialog
6. Click Still Pictures to compress the Credits to stills
7. Click Start End again
8. Select Chapter 1 for the Start Frame Chapter and Chapter 32 for the End Frame Chapter in the Set Start/End Frames dialog
9. Click OK in the Set Start/End Frames dialog
10. You will now see TWO compression streams ticked, one at the automatic level (for the main movie) and one as stills (for the credits)

too confusing ;)

1. select the parts you wanna compress and do it
2. set the start/end to original start/end

just kidding of course, but it does work but it took me a while to finally get the idea

[maa]

OK - its re-written - hjope its clearer now...
:rolleyes:

[gnipooldd]

I do agree that DVD Shrink indicates two (or more) levels of compression are being used.
What I'm not sure about is if it actually works. :)

[MackemX]

have you tried using stills in the middle of it?

that definitely works

maybe you can only have 3 different settings to set them at

automatic/ratio and stills?

[gnipooldd]

Nope, I haven't done the actual backup yet.
I'm still trying to understand these:

http://www.dvdshrink.info/temp/images/compressions.gif

Can someone explain me all these numbers? :confused:

[MackemX]

@ ddlooping,

instead of using a complete title, crop 3 chapters from that and create a miniDVD then use that to play with as processing takes minutes

I'm thinking if you set the first bit you want using the ratio to say 70% and then set another part to 80% it overwites the previous setting to 80% also

I wonder of you can only tell parts of the title to either be whatever the original automatic setting is, ratio or stills

or can you have independent ratio's

[layer3maniac]

Originally posted by gnipooldd
I do agree that DVD Shrink indicates two (or more) levels of compression are being used.
What I'm not sure about is if it actually works. :) It actually works. I'm looking at the finished product on my standalone, with the credits converted to stills, right now.

[layer3maniac]

And, BTW, it's COMPLETELY SEAMLESS!!!