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dvdpunk81
20th December 2001, 03:46
704x384 @ 0.201 Bits/(Pixel*Frame)
672x368 @ 0.219 Bits/(Pixel*Frame)
640x352 @ 0.241 Bits/(Pixel*Frame)

If the source was from DVD, which setting would you choose to encode at with DiVX 4.11?

Note: That's with cropping.

FactorM
20th December 2001, 09:26
It depends on how many cd's you want to use.

ProfDrMorph
20th December 2001, 12:05
It depends on how many cd's you want to use.
The bitrate which is the important factor is given indirectly since we have the Bits/(Pixel*Frame) calculates.

I would go for the highest resolution. Gordian Knot suggest to use a value of at least 0.2 and I think this was a suggestion for DivX3.11. Since DivX4 handles low Bits/(Pixel*Frame) better than DivX3.11 you should go for the highest resolution ( if the target computers are fast enough for playback ;) ).

ChristianHJW
20th December 2001, 14:19
...this poll is much too unspecific.

- Aiming for 1 or 2 CD rip ( bits/pixel*frame value alone is not enough here ) ?
- filtering out picture noise ( light, heavy, medium ) ?
- resizing filter ( sharp, neutral, soft bicubic or bilinear ) ?

etc. ....

dvdpunk81
20th December 2001, 14:44
Originally posted by ChristianHJW
...this poll is much too unspecific.

- Aiming for 1 or 2 CD rip ( bits/pixel*frame value alone is not enough here ) ?
- filtering out picture noise ( light, heavy, medium ) ?
- resizing filter ( sharp, neutral, soft bicubic or bilinear ) ?

etc. ....

Well, I'm assuming all other variables are fixed.

How would 1 or 2 CD make a difference in how the picture looked if the given (bits/pixel*frame value) and resolution were the same? Doesn't fixing those values for a given input file produce a single possible output file size?

As for picture noise, isn't there one type that works the best? Or is it the case that different picture noise filters work better with different combinations of settings? Also, I'd think the same would apply for the resizing filter.

ProfDrMorph
20th December 2001, 17:24
I think this poll is specific enough. It's completly unnecessary to know if you want to use 1 or 2 CDs if the Bits/(Pixel*Frame) value is given. The only reason why you can go for higher resolutions when you do a 2 CD Rip instead of a 1 CD Rip is that the Bits/(Pixel*Frame) value raises. So this value is specific enough. Only the lower limit you should stay above differs from target platfrom ( TV, monitor ) and compressibility of the frames ( is there noise, much motion, etc ). But in general you can say that for monitors you should stay above 0.2 and for TVs over 0.13.

snol
20th December 2001, 18:41
might make a difference if it's got lots of action or mostly relatively still scenery. Probably best to keep full res if it's all still scenes with lots of detail and better to pare down if it's the motion that matters and not the picture.

ProfDrMorph
21st December 2001, 12:44
might make a difference if it's got lots of action compressibility of the frames ( is there noise, much motion, etc )
Hehe I already said that the content is important. But most of the time a Bits/(Pixels*Frame) of more than 0.2 should be ok.


I quoted myself with the second quote ;).