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Xing Quality MPEG-1 Encoding

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Tom Spohrer

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Mar 23, 1998, 3:00:00 AM3/23/98
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I have not been successful in coercing the Xing MPEG encoder to provide a
low compression (i.e. high datarate) MPEG encoded file. I have tried to
define my own stream using a data rate of 2000KB/sec, but the resulting
output file is always limited to around 4x CD range (600KB/sec). Is there
something else that needs to be done to get a file in the 2MB/sec range for
playing off of a hard drive? Could this be a limitation of the trial
version of the Xing encoder?


Cliff Watson

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Mar 24, 1998, 3:00:00 AM3/24/98
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Tom,

Try LSX-MPEG Encoder at www.ligos.com .

Best regards, Cliff

Tom Spohrer wrote in message <6f7aia$i...@bgtnsc02.worldnet.att.net>...

Robert Silvers

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Mar 24, 1998, 3:00:00 AM3/24/98
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I believe DVD movies run at about 600K/sec average -- just for people's
info.
Should be pretty watchable.

Does anyone know what type of file and what filename to use to make
something
that can play as a video-cd on a DVD player?

Mike Richter

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Mar 24, 1998, 3:00:00 AM3/24/98
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Robert Silvers wrote:
>
> I believe DVD movies run at about 600K/sec average -- just for people's
> info.
> Should be pretty watchable.

It is not constant, but I believe that the average rate is in excess of
1 MB/sec.


>
> Does anyone know what type of file and what filename to use to make
> something
> that can play as a video-cd on a DVD player?

A VCD - if your DVD machine plays VCD's at all and CD-R's. Many do, but
not all. As usual, the easy way is to create a whitebook MPEG and burn
it with Easy CD Creator.

Mike

mric...@mindspring.com
http://mrichter.simplenet.com
CD-R http://resource.simplenet.com

Robert Silvers

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Mar 24, 1998, 3:00:00 AM3/24/98
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Mike Richter wrote in message <35183E...@mindspring.com>...


>Robert Silvers wrote:
>>
>> I believe DVD movies run at about 600K/sec average -- just for people's
>> info.
>> Should be pretty watchable.
>
>It is not constant, but I believe that the average rate is in excess of
>1 MB/sec.

Average is 4 mega-bits/second. Peak is around 10 mega-bits second. So,
average is around 600Kbytes (under one megabyte).

Thanks.

James Schell

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Mar 25, 1998, 3:00:00 AM3/25/98
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Would you mind sharing the details of your project? Specifically, why
you are using MPEG with a data rate of 2000 kBytes/s?

In a previous article, pr...@ibm.net ("Cliff Watson") says:

>
>Tom,
>
>Try LSX-MPEG Encoder at www.ligos.com .
>
>Best regards, Cliff
>

Cliff Watson

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Mar 25, 1998, 3:00:00 AM3/25/98
to

James,

Are you asking me or Tom?

Actually I use a data rate of 2.26 MB/s for MPEG. My "project" may be a
little unusual for this news group. I am a golf instructor (pro_cw) and I
use video as a training aid. After capturing the video of a students swing,
the clip is displayed in a program that will allow me to draw lines and
angles as an overlay to the video. The program allows me to use stop
action, frame by frame, and slow motion to analyze the swing. To analyze
the swing I need a clear picture of the club head and shaft. At 75 to 110
MPH club head speed it is not possible with low data rates.

I also use a scan converter to display the computer screen on a TV and to
record my analyzes on tape for the student to review a home. The student
tape provides a record of his/her progress (and helps me remember what I ask
the student to work on between lessons).

The display program will also allow me to display a side-by-side comparison
of the student to touring professionals. I can even flip a video, i.e.,
make a right handed player swing left handed.<g>

Best Regards, Cliff

James Schell wrote in message <1998Mar25.0...@lafn.org>...

JeffD

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Apr 3, 1998, 3:00:00 AM4/3/98
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to answer this first... mpeg2's stream rate varies as to how many
sound streams (languages..sound tracks) accompany the video... it can
be fomr like 600K to 1.2 megs a second.. but no more...

now even though xing does allow dvd movie like rates and window
sizes.. its NOT mpeg2. Xing is strictly mpeg1 video... mpeg2 video
requires a shitload more cpu in encodeing and decodeing...

also dont forget.. most video cards limit there mpeg playback
acceleration to video cd resolution and lower cause nothing really
uses anything bigger. So if you made a high bit stream mpeg.. maybe a
dvd player could handel it.. but a cpu would prolly lose frames unless
useing a lossy software decode method..


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