PDA

View Full Version : DVD Menu decoding problem


[Toff]
7th September 2002, 00:39
DVD2AVI drop a lots of frame when decoding DVD menu.
This is a big synchronization problem because in menu you can have still picture.
Did someone as already investigate this problem ?
Any idea to fix this problem ?

hitch
27th September 2002, 16:16
May I ask what you're trying to do? If you're ripping menus for encoding to SVCD, see below.

First rip menu vob with vstrip (make sure split by cell id is selected). This results in indivudal vobs and is an easy way to separate motion menus, transitions and still VOBs. Then load each motion menu and transition VOB into DVD2AVI and create d2v projects for encoding. This assumes you don't want to edit the menus. If you want to do this there is an extra step.

Second extract ac3 and determine delay from each vob and convert to .mp2 with Besweet pluggin in the delay.

Third mux with BBmpeg

I never have any synch problems with this method.

hope that helps.

[Toff]
27th September 2002, 20:51
May I ask what you're trying to do? I


I try to automate DVD to XCD menu encoding.


Then load each motion menu and transition VOB into DVD2AVI and create d2v projects for encoding.


But you are missing some frame at end of each cell, I don't want to miss any frame.
Moreover I want to be able to use multi-pass encoding to keep best quality. Multi-pass encoding is not very efficient on small part.

I understand that your method is good for SVCD.

hitch
27th September 2002, 20:56
What do you mean by XCD? Do you mean Non standard VCD or SVCD?



But you are missing some frame at end of each cell, I don't want to miss any frame.

Nto sure I follow you, what frame am I missing? If the conern was synching, then there is no problem with this method.



Moreover I want to be able to use multi-pass encoding to keep best quality. Multi-pass encoding is not very efficient on small part

Not sure I understand you here either. You can use multipass encoding on the d2v project you create, in fact its what I do.

Oh well, seems you're off in a different direction. Good luck to you.

gizmau
4th October 2002, 00:17
@toff

>DVD2AVI drop a lots of frame when decoding DVD menu.

not really. it seems to depend on the extraction method used within dvd2avi.

when you want to load the menu-vob, make sure you load the vob before (mostly video_vts) and the following vob (vts_1_1) as well. then move to the start and end of the cell and set the points. then press f5 to play the selection. now you can save the menu-stream - at least in 98% of all cases.

when there are still problem, try saving as avi (dont forget to load the prvious and next vob!), then importing in virtual dub, cut, then encode.

pixelfreak
9th October 2002, 17:48
This assumes you don't want to edit the menus. If you want to do this there is an extra step.



How can I edit the menus ???

hitch
10th October 2002, 05:11
http://www.angelfire.com/anime3/airanime/guide/guide.html

[Toff]
10th October 2002, 16:02
First, thanks for your comments.


make sure you load the vob before (mostly video_vts)


I haven't try that. I will do asap.