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  #21  
06-20-2005, 05:16 PM
rds_correia rds_correia is offline
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Quote:
Originally Posted by Prodater64
4 - Im sure that rds is getting 1% undersize in samples, not whole movie. But I can be wrong. When he do whole encoding, he will find a surprise, I think.
Nope, I'm getting undersize ~0.05% on predictions.
On real encodes I'm getting around 1% or even less.
But I don't know if I have already emphasized that I am running for a 2 movies in one DVD-5.
That means you work with ~4.000.000KB available for video whereas I work with ~1.900.000KB.
There can be the reason why you get bigger undersize figures than I do .
Just as an example, I got one prediction with full encode of "The Matrix I":
Ideal Video Size=1.861.038,4KB
Encoded Video Size=1.840.011KB
This is just slightly over 1.1% .
BUT my latest encode with "Back to the Future I" was again near the 1.8% which IMHO is a bad prediction.
So this means that the prediction behaviour is far from perfect.
Quote:
Originally Posted by Prodater64
5 - @rds: Please, if you find out the solution, let me know how? It would be great that I can include that maths in my tool. Thanks.
I sure will if I happen to find a way.
I just would need HC to give me a break .
I gotta tell you: I have been more optimistic than I am at this moment.
Maybe there really isn't any way of achieving what we're seeking .
Quote:
Originally Posted by Prodater64
Edited: Im thinking in doing a last 5% prediction and see where is going it. With this value, to do a correction of maxbitrate. Any idea.
I've been there already.
One of the 1st things I thought: maybe this doesn't work with 1%.
So I tried 2,3 and 5%.
Results were veeery similar.
So I went back to 1% which is faster and gives me the same figures.
Anyone else besides the 2 of us working on OPV prediction with HC?
Anyone??
Do I hear Karl?
Do I hear Andrej?
Phil?

Cheers
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  #22  
06-20-2005, 05:59 PM
Prodater64 Prodater64 is offline
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Quote:
Originally Posted by rds_correia
Just as an example, I got one prediction with full encode of "The Matrix I":
Ideal Video Size=1.861.038,4KB
Encoded Video Size=1.840.011KB
I also have this PAL DVD.
Could you post more data as cqmaxbitrate used and I will try to duplicate results?
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  #23  
06-20-2005, 06:08 PM
rds_correia rds_correia is offline
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I'm on a set of 2 new predictions with another 2 movies.
I have 6 movies in my HDD in IFO/VOB files ATM.
I can see that results vary from movie to movie...
All the data from previous encodes and predictions has already been erased .
But I'm sure I'll get back to "The Matrix I" again and then I'll post the results.
Cheers

EDIT: I'm working on different approaches on calcs/algorithms.
As soon as I find something usefull I'll post my findings.
For now, and since the results are so much different from movie to movie I rather not post anything as I really have got nothing .
Stand by.
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  #24  
06-20-2005, 08:22 PM
Prodater64 Prodater64 is offline
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Quote:
Originally Posted by rds_correia
...
I can see that results vary from movie to movie...
...
For now, and since the results are so much different from movie to movie ...
Im seeing same behaviour.
Differents movies, differents spikes cutted off, differents bits not brought back to the stream, differents final error.
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  #25  
06-20-2005, 09:55 PM
Prodater64 Prodater64 is offline
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As I said before, I added "prediction only" button to my tool.

Maybe you can know which is the button, even if I don't say you it.

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  #26  
06-21-2005, 01:00 AM
rds_correia rds_correia is offline
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Quote:
Originally Posted by Prodater64
Maybe you can know which is the button, even if I don't say you it.
Wow, a crystal ball
That's what we need here .
I'm quiting.
Overnight I tried two movies.
One undersized by 1.7% and the other oversized by 2.7% - my 1st oversize!
I say this is completely...unpredictable!
As for some movies that I got under less 1%, they're wonderful.
But what about all the others that I got really undersized, right?
I quit, please let me know if you find anything usefull.
Cheers
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