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PostPosted: Fri Dec 07, 2007 2:25 pm 
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Joined: Wed Sep 19, 2007 1:49 pm
Posts: 45
Hi everyone, Kolibri IS really cool !

Just wondering if could possible to use its powerfulness to backup DVDs.

Of course, we need a transcoder (better if automated)... so here's the suggestion:
why don't "we" -unfortunally i'm not a developer- try to port an open source backup tool to KolibriOS ?

Here's some (hopefully) interesting links:

FairUse Wizard a powerful and high quality all-in-one DVD backup tool written in VC++ (sources).

DVD Rip-O-Matic a simple DVD-to-XviD ripping application (project page).

HandBrake an open-source, GPL-licensed, multiplatform, multithreaded DVD to MPEG-4 converter, available for MacOS X, Linux and Windows (download page).

Btw, a more ambitious port would be the MediaCoder one, a free universal batch media transcoder, which nicely integrates most popular audio/video codecs and tools into an all-in-one solution (wiki).

Hope that helps (or, at least, ispires) !

Marco Ravich
--
>>Forward Agency
In progress we (always) trust.


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PostPosted: Fri Dec 07, 2007 4:13 pm 
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Kernel Optimizer
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Joined: Mon Jan 16, 2006 7:58 pm
Posts: 657
We have some problems with system and applied programmers. Their very little and they are busy at other task. I can't work above task because I study in University and I have a work.

I'm sorry my poor English.


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PostPosted: Thu Dec 13, 2007 2:27 pm 
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Joined: Wed Sep 19, 2007 1:49 pm
Posts: 45
Here's my -private- reply to the octa os developer, that I believe could be useful for Kolibri too:

Quote:
> Hello, well since i forget my username in kolibry forum y will reply here.
>
Hi, and thanks for the reply.


> First i don´t know if it is legal to rip and play dvds without a license, thats why linux distributions don´t have this installed.
>
This is a "non-problem": if you legally own a DVD you can always make a backup copy.
Of course you shouldn't re-encode in MPEG-2 (or any other royality-unfree codec) if you don't own a regular license... but we already have Theora, Dirac and Vorbis !


> Second in kolibri os there are few developpers but in octa os there is only me (and you are not a developper so i'm still alone)
> so i have to select the projects i code by importance order, just writing the drivers for sound cards is a lot of work since there is no standard like video vesa.
>
Well, I think you already know that the main "key" for an OS success is to have a killer application (as Office for Windows, Apache for Linux, PhotoShop for MAC, etc...)
I don't know your strategy around this, but I believe that the main ability for an assembly OS is to unchain the PC computing power.
I (and i'm sure i'm not alone) to have a 1/2 Gb USB pen with an OS that allows me to backup and (dreamingly) burn movies into royalty-free (better if wavelet, that requires extreme computing powers) codecs/containers.


> And porting 'portable c sources' is also a lot of work.
>
Of course, but i believe that porting a DVD backup tool in pure assembly could benefit not just your project... (and can attract mutch uders/developers)


> There are much more important things to do in my OS like internet acces.
>
Internet access IS important but, honestly, do you really belive that peoples will adopt your OS for surfing the web ?
Actually there's no "encoding-OS" on the scene, keep it in consideration.


> And finally when i have the time for do it ,dvds will probably become obsolete.
>
Better: in the -next- future backing-up an High Definition (both BR and HD-DVD) movie will be even more CPU intensive...

BTW these are just my -poor- opinions.


Marco Ravich
--
>>Forward Agency
In progress we (always) trust.


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PostPosted: Sat Dec 22, 2007 7:05 pm 
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Joined: Wed Sep 19, 2007 1:49 pm
Posts: 45
I just discovered DVD4DOS, a DVD PLAYER for 16bit DOS systems !!!

Quote:
Minimal requirements:

-486DX computer (486 with built-in FPU)
-4/8/16 or more MB of RAM (I don't know...I have 64MB...)
-SVGA card (640x480 resolution and 8/15/16/24/32 color bits/pixel)
-SB Pro or compatible soundcard (11025 Hz, 8 bit, stereo)
-DVD drive with drivers installed (CDROM.SYS included in the package)
-a single layer and region-free DVD movie disc
-lots of spare time because DVD4DOS is not a realtime player and very slow...
(tested with my Pentium 120 MHz computer... transcoding 1 min movie takes cca. 1 hour)


Third party free softwares included and used:

-VOBSPLIT (file splitter) by Anastasis Chatzioglou (Anasto) (2000)
-DECODEVOB (A/V demux) source from the web (by ?) (DOS ported by me) (2003)
-MPEG2DEC (MPEG2 video decoder) by MSSG (1994)
-CMPEG (MPEG1 encoder) by Stefan Eckart (1993)
-MPXPLAY (AC3 decoding) by PDSoft, Padar Attila (2003)
-DISPLAY (MPEG1 playing) by Jih-Shin Ho (1993-1995)

...it would be great to have an assembly-realtime (or, well, a KolibriOS) port !

Hope that helps !


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