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telemike 02-13-2003 12:51 PM

Ever think of taking KVCD commercial and legit?
 
Kwag and others-

Have you copywrited or patented KVCD yet? Have you though of selling out to a major software firm to make KVCD a format to go against say Divx.......?

kwag 02-13-2003 01:47 PM

Re: Ever think of taking KVCD commercial and legit?
 
Quote:

Originally Posted by telemike
Kwag and others-

Have you copywrited or patented KVCD yet? Have you though of selling out to a major software firm to make KVCD a format to go against say Divx.......?

KVCD is currently being registered as a trademark. As for patent, it doesn't apply, because it's an MPEG modification to an existing standard. Read this:

Quoting the book Video Demystified, by author Keith Jack, page 519:

MPEG-1 is an ISO standard (ISO/IEC 11172), and consists of six parts:
System ISO/IEC 11172-1
Video ISO/IEC/11172-2
Audio ISO/IEC 111172-3
Low bit rate audio ISO/IEC 13818-2
Conformance testing ISO/IEC/ 11172-4
Simulation software ISO/IEC 11172-5


"The compression algorithms are up to the individual manufacturers (KVCD?), allowing a propietary advantage to be obtained within the scope of an international standard"

The last paragraph is where KVCD fits in. So the KVCD GOP/Matrix applies to MPEG-1 and MPEG-2, and applies prefectly well for satellite digital transmissions and other wireless streaming methods. That's out propietary advantage. KVCD's legal department and is currently negotiating with several prospects :wink: . However, the techniques developed are open just like "Open Source" and can be used by any manufacturer or broadcast company. I see very clear that KVCD's methods can greatly enhance digital transmissions, while providing higher quality at lower bit rates. The end result is that DVB transmissions can reduce current bandwidths while maintaining very high quality standards.
We'll see what happens in the future, because MPEG-2 in digital transmissions is here to stay for many years to come, and we can all benefit from all the research and techniques that have been done by many people here at KVCD.Net

-kwag

telemike 02-13-2003 01:55 PM

Thanks! I will be trying my first conversion from my tuner card today. I am recording a cable broadcast with WinDVR2. 3600K, Mpeg2, 352x480. I will be encoding to KVCD+ 352x240 LBR. How should I handle the interlace/de-interlace?

kwag 02-13-2003 02:46 PM

Hi telemike,

I assume you are capturing NTSC material.
First of all, what are you capturing? Is it a regular TV show or episodes. If your captured original source was shot "Video" and not "Film", then you have to encode at 29.97fps and deinterlace if your target is VCD(KVCD). If your target is SVCD(SKVCD), then you still encode at 29.97 but you don't need to deinterlace.
If the source was FILM, then you should do Inverse Telecine (IVCT) on your material, and encode at 23.976fps. The best way to do IVTC is to use the "decomb.dll" and use the functions Telecide() followed by Decimate() on your .avs script right after your source line.

-kwag

telemike 02-13-2003 02:50 PM

I am capturing episodes of "I Love Lucy" off TV Land for my wife.

What would be the best way to capture this and convert to 352x240 KVCD?

kwag 02-13-2003 06:39 PM

Quote:

Originally Posted by telemike
I am capturing episodes of "I Love Lucy" off TV Land for my wife.

What would be the best way to capture this and convert to 352x240 KVCD?

:mrgreen: Your wife likes that too :D . So does my wife 8)
I'm pretty sure that those were shot FILM, as they were filmed years before digital cameras were available. So capture as regular, 29.97fps, and then use a .avs script with Telecide() and Decimate(). That will automatically remove the telecine'd frames, and you encode with KVCD 352x240 PLUS with default settings at 23.976fps. You might want to use prediction to fit a couple of episodes on a single CD :idea:

-kwag


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