DVD Decrypter & Auto G Knot

[beartrax]

Hi all,
This is my first post here and believe me I have read the forums so much, I am now more confused than ever, but I think I have a basic understanding here.
Here is my situation:
I run an internet radio station, fully licensed (ASCAP,BMI,SESAC). I wish to add music videos to my site, and have chosen a flash player as the viewing medium.
I subscribe to Promo Only's Country Video DVD.
I used DVD Decrypter to rip the chapters and Auto Guardian Knot to convert. I specified the input and output file, but the Audio track only gave me 2 choices; Unknown Audio & No Audio.
Seems all went well till the end of the process. I get an "EXCEPTION: Audio is not found".
I know the audio is on the DVD.
Did DVD Decrypter not rip the audio?
Hopefully someone reading this can shead some light on my situation.

It is my hope to rip & encode the DVD. Then use Vegas to edit and finally Riva FLV Encoder to get the final flash music video's
If there is anyone else out there that is doing anything simular, please let me know how it is working for you.

Any and all suggestions would be most appreciated.....Thank you !

[castellanos]

Did you run DVD Decrypter in IFO Mode?

[killingspree]

hi and welcome to the forum,

as a general suggestion i'd have to say that your method is far from ideal and will probably yield far worse quality than possible. of course i do not know Riva FLV Encoder, but imho you should check if it can directly take avs files as input (instead of avis). if so, you should check out doom9's frameserving guides and avoid to reencode the video.

if it doesn't accept avs files, you should try the ffdshow avs2avi wrapper... it creates a kind of fake avi, only a couple of megs in size, which basically tricks the encoder into thinking it's dealing with a real avi, but in reality is directly accessing the log files.

sounds complicated? well it actually isn't! if you need any further help, feel free to ask, but please reconsider the double encoding approach! (your customers will thank you ;))

kr
steVe

[beartrax]

Thanks guys for the responses.

To answer Castellanos, yes I did make sure DVD Decrypter was set to IFO Mode.

Killingspree, I would like to talk to your further about what you are suggesting. You can either post here, or ask me for my email if not available.

Thanks again guys......

[jggimi]

AutoGK produces MPEG-4 videos in .avi containers with either the XviD or DivX codec. All MPEG compression technologies are lossy. Lossy means that video information is discarded as part of the compression process. Whenever you use MPEG compression as an interim step, you are introducing image loss into the process. This should be avoided, it will reduce the image quality of your final product.

There are lossless codecs designed for use in interim steps such as editing. HuffYUV is the most commonly used one. But, that lossless compression comes at a high capacity cost. You can expect to consume in the range of 20-40 GB per hour of video, with DVD video sources.

Because of the high storage capacity requirements of these interim files, and also, for procedural simplicity, Frameserving techniques have been developed. These skip the interim storage step, by routing uncompressed video, frame by frame, as output from one process directly into another, typically an encoder.

There are several different frameserving technologies. Killingspree recommended the most popular frameserving technology in use today, AviSynth. AviSynth is a little different than most other frameserving technologies. Its a video editing scripting language, as well as a frameserver.

All the other frameservers work as a method of moving video from one application to another. This type of frameserving was Kikllingspree's second recommendation. But I'm not familiar with ffdshow frameserving in particular, so if you're interested, he'll have to follow up with you on that. I'm only familiar with VFAPI and Frameserving from VirtualDub, both of which are program-to-program technologies.

AviSynth scripts (.avs files) are text files that describe video sources, and then scripted manipulation, such as cropping and resizing. When these text files are opened by most AVI players and most video encoders, they produce video, just like an .avi file.

AviSynth is used by AutoGK, to decompress the MPEG-2 images in your VOB set, test the images, crop, resize, perhaps additional manipulations such as Inverse Telecine, and finally send them to the MPEG-4 encoder, which for AutoGK is VirtualDubMod.

------

If you still want to use AutoGK as an interim step...

It "sounds" like you may have been using AutoGK in File input mode rather than in DVD input mode. File mode is for MPEG-2 (.mpg) sources, not VOB sets. Use DVD input mode for VOBs. If you were using DVD input mode and still having trouble, then please copy and paste the contents of your "streams information" text file, found in the folder with your VOB set.

[beartrax]

Originally posted by killingspree
hi and welcome to the forum,

as a general suggestion i'd have to say that your method is far from ideal and will probably yield far worse quality than possible. of course i do not know Riva FLV Encoder, but imho you should check if it can directly take avs files as input (instead of avis). if so, you should check out doom9's frameserving guides and avoid to reencode the video.

if it doesn't accept avs files, you should try the ffdshow avs2avi wrapper... it creates a kind of fake avi, only a couple of megs in size, which basically tricks the encoder into thinking it's dealing with a real avi, but in reality is directly accessing the log files.

sounds complicated? well it actually isn't! if you need any further help, feel free to ask, but please reconsider the double encoding approach! (your customers will thank you ;))

kr
steVe

Hi Killingspree,
I checked out the frameserving as you suggested and it looks like a good alternitave....but I don't know the first thing about scripting.
So I guess I am asking you for your help here.
Thanks,
Doug

[killingspree]

hi again,

perhaps you should start by reading the guides ;)

here's (http://www.doom9.org/mpg/d2a-mpeg2dec.htm) a comprehensive guide to avisynth frameserving, try to create your first small script so you can check if your encoder can handle avs files!!

@jggimi: great reply, makes mine look tiny ;)

kr
SteVe

edit: also you might to want to take a closer look at this thread: http://forum.doom9.org/showthread.php?s=&threadid=89512