New computer source code.. true?

New computer source code.. true?

Re: New computer source code.. true?

Berichtdoor Johan1951 » wo 20 okt 2010, 18:20

From: Monique

More detailed: for every movie there are a limited amount of sounds and colors. The basic data would be stored in five algorithms. Every algorithm would be a max size of 74 Mb, 370 Mb in total: the motor of the invention. The only thing needed to get it started would be a fitting key. Sloot would make for every movie screen a unique code, which in total would result in a unique code. The last code, the key, only takes 1 kb of memory, independent of the lenght of the movie. On one simple chip he could thus store tens of keys, 64 keys on a smartcard. So against payment you could be sent the key to a number of movies through your cell phone, which can be put into the 370 Mb algorithms that are present in the player. :?
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Re: New computer source code.. true?

Berichtdoor Johan1951 » wo 20 okt 2010, 18:21

From: The_Professional

I can only imagine how poor the quality of the movie is if it will be compress to such a small size.

I read a similar article on 2600 magazine on how to compress movies so you can watch it in your PDA or Ipaq.
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Re: New computer source code.. true?

Berichtdoor Johan1951 » wo 20 okt 2010, 18:22

From: Aychamo

So basically he more or less encrypted movies that were compressed to pretty junky quality?

Wow :)

I have some source code to compress files and it only increases the file size by 200%. Anyone interested?
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Re: New computer source code.. true?

Berichtdoor Johan1951 » wo 20 okt 2010, 18:23

From: Check

Monique wrote:
More detailed: for every movie there are a limited amount of sounds and colors. The basic data would be stored in five algorithms. Every algorithm would be a max size of 74 Mb, 370 Mb in total: the motor of the invention. The only thing needed to get it started would be a fitting key. Sloot would make for every movie screen a unique code, which in total would result in a unique code. The last code, the key, only takes 1 kb of memory, independent of the lenght of the movie. On one simple chip he could thus store tens of keys, 64 keys on a smartcard. So against payment you could be sent the key to a number of movies through your cell phone, which can be put into the 370 Mb algorithms that are present in the player. :?

Ah, I see what you're saying. Sort of like those Text to Speech programs. The different pieces of sounds, syllables, are already stored in the computer and you simply input the text. So a 100KB text file could be turned into a 10MB or whatever .wav file. Kind of an incomplete analogy, but that's how I'm thinking about it.

However, there are probably a million reasons why this would either be impossible or extremely inefficent to do with video.
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Re: New computer source code.. true?

Berichtdoor Johan1951 » wo 20 okt 2010, 18:25

From: Russ_watters

Monique wrote:
So how does compression work now? zip, rar, mp3 files? You can take out redundant information, the wavelengths you do not hear or freeze the background of the film when it does not move.

But if you can break up the code in blocks, and only store those blocks, you can dramatically reduce the size if you know the code.

Media and text require completely different types of compression.

[simplifications here]
Compression schemes like zip and rar find patterns and replace the contents with markers. You could take out the word "compression" out of this post and replace it with "$1", then put in a table at the end that $1="compression". Decompressing the files re-assembles the words.

Media can be encoded the same way, but its much more difficult (try zipping a photo and see how much smaller it gets - 2% if you're lucky). Most media compression schemes actually reduce the quality of the media, but in ways that you won't notice. If you zoom in on a .jpg picture, you'll see little blocks of color - say, a blue sky has 4 pixels in a square that are almost, but not quite, the same shade of blue. .jpg compression replaces all 4 with the same shade of blue. Most photos can be compressed by upwards of 90% in this way without noticing the loss. DVD uses .jpg compression.

Newer forms of media compression compare frames: if that block of 4 shades of blue is still there in the next frame, you can replace both blocks at the same time. Divx does this. As you can imagine, this is extremely processor intensive.
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Re: New computer source code.. true?

Berichtdoor Johan1951 » wo 20 okt 2010, 18:26

From: Monique

Aychamo wrote:
I have some source code to compress files and it only increases the file size by 200%. Anyone interested?


:roll: no thanks, I think I'll pass..

thanks russ for that explanation :)
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Re: New computer source code.. true?

Berichtdoor Johan1951 » wo 20 okt 2010, 18:28

From: Chroot

You can't use zip to compress a jpg file much, because jpg is already a "compressed" format, as russ explained. You can use zip to compress a bitmap file, though, to an enormous degree. The bitmap format is completely uncompressed.

Some newer formats, like png (portable network graphic) are lossless as well, and rapidly gaining ground on the internet. The latex images on this forum are png files, in fact. :)

- Warren
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Re: New computer source code.. true?

Berichtdoor Johan1951 » wo 20 okt 2010, 18:29

FRom: Dduardo

So when do you predict IE will have full support for png?
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Re: New computer source code.. true?

Berichtdoor Johan1951 » wo 20 okt 2010, 18:29

From: Chroot

IE does not already support png? What do you mean by "full support?"

- Warren
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Re: New computer source code.. true?

Berichtdoor Johan1951 » wo 20 okt 2010, 18:30

From: Hitssquad

Russ_watters wrote:
If you zoom in on a .jpg picture, you'll see little blocks of color - say, a blue sky has 4 pixels in a square that are almost, but not quite, the same shade of blue. .jpg compression replaces all 4 with the same shade of blue. Most photos can be compressed by upwards of 90% in this way without noticing the loss. DVD uses .jpg compression.

DVD uses MPEG-2 compression.
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