How to see if a movie are encoded using a 1 click program ?

[GZZ]

Anyone here know if there is any difference in the vob file structure, so you can make a program to see if a movie are encoding using one of the those 1 click tools or it is have been reencoded using CCE or simalary tools ?


I want to make a little program which can tell you if its made with 1 click tool or CCE.

I have found out that for the most times the Timecode inside each GOP are reset to 00:00:00.00 if a 1 click tool have been used and not if CCE and scenarist have been used.


Anyone know if there is anything else that Identify if a 1 click tool have been used ???


GZZ

I hope someone have some input please.

[bilu]

I'm not a developer but have some questions to you:

1) Symptoms like the timecode reset you speak of can be changed in future versions, so how can you garantee that all 1-click tools would do it?

2) Why do you want to distinguish them with a tool? Wouldn't you rather trust your own eyes? ;)

Bilu

[GZZ]

Good reply and yes, nothing beats the eye.


and I guess there is no way to see it. But to bring it down to why I really want to make a tool like that are quiet simple to tell the difference between (without the eye) between a CCE encoded movie and a 1 click movie.


Because 1 click reencoded movies SUX compared du CCE encoded movies and I got the question ask from some people in the 'scene', if it was possible to tell the difference, so you could make some kind of prove what kind of tool have been used du make the movie.


GZZ

[bilu]

I don't do MPEG-2 but I've heard that some 1-click tools are worst than others.

This tool is a free one and it seems to get the attention from some fine community developers: http://www.rejig.org

But CCE is undoubtedly the best :)


Bilu

[int 21h]

It depends greatly on the target compression amount.

Just graphing the results of traditional DCT based compression vs. a compressed domain transcoding can show you that in some situations, a transcoder can deliver better, more efficient bit usage than a full encoder.

[MLS]

How often is that?

/MLS

[int 21h]

I'd estimate its times when you're reducing size above 70% or so, I haven't actually taken the time to graph it out.