oddball_apple_streaming_approach

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Subject: Re: Streaming media
From: Edward Marczak <marczak@usa.net>
Date: Wed, 20 Sep 2000 17:54:22 -0400

On 19/9/00 7:39 PM, Jonathan Wilson struck keys that formed the message:

> Howdy,
> 
> Is anyone here familiar with using Linux to stream streaming media?
> We've found that Real's RealMedia Plus server runs on Linux, but we want to
> be able to stream MPEG 1 or AVI (_possilby_ also .asf for those who really
> want it).
> 
> So far I've had bad luck finding either MPEG  or AVI streaming servers for
> Linux.

A different approach:  http://www.streamingserver.org.  They can point you
to Apple's free version of Quick Time Streaming Server (properly called
Darwin Streaming Server).  Available for RedHat Linux.  It will allow you to
stream any valid QT format, including MP3.  Possibly .avi, but I've never
tested that.  Quite frankly, AVI really isn't up to the task of streaming.

===

Subject: RE: Streaming media
From: "Chapman, Matt" <chapmam2@ocps.k12.fl.us>
Date: Thu, 21 Sep 2000 08:15:27 -0400

works great and streams mpeg and mov very easily...

===


Subject: Re: Streaming media
From: wilson@claborn.net (Jonathan Wilson)
Date: Thu, 21 Sep 2000 11:57:24 -0500

Yes I saw that and I am interested in it - personally, I
love QuickTime above all the other formats. However, as
previously stated, the problem is that our clients
specifically asked that we stream in Real Media (very easy,
no problem at all) and in something that Windows Media
Player can play. Therein lies the trouble - Windows Media
player can play .asf .avi and MPEG, but I haven't found a
server for Linux that does any of those yet. See, they know
that many Windows users will never bother to download a QT
player or even Real Player in some cases, and they want
people to be able to watch their video right away with no
trouble.

Personally that makes me unhappy, I think people should
always be downloading the newest browsers, and getting
plugins and stuff. If it was up to me we'd use QuickTIme and
DivX;-) and provide a link to a player :-)

But then I use Linux too so I must be *different* ;-)

Thanks though,

        JW

P.S. mp3 is not the same as MPEG - I've noticed many people
are confused about that. MPEG is video, mp3 is audio only.

===

Subject: Re: Streaming media
From: Matt Housh <jaeger@morpheus.net>
Date: Thu, 21 Sep 2000 12:57:11 -0500

> P.S. mp3 is not the same as MPEG - I've noticed many people
> are confused about that. MPEG is video, mp3 is audio only.

Unless I've gone nuts or this has change, MP3 does indeed mean MPEG, in
a way. MP3 is short for MPEG3, which is an audio format. MPEG1 and MPEG2
are video/audio formats. MPEG4 is also a video/audio format? Is this
wrong? Someone feel free to correct me if it is...

===

Subject: Re: Streaming media
From: wilson@claborn.net (Jonathan Wilson)
Date: Thu, 21 Sep 2000 13:12:28 -0500

Actually, I think you are right - but an mp3 server, for
example icecast, cannot stream MPEG1 video - right? I looked
over icecast's web site and didn't find anything like that.

===

Subject: Re: Streaming media
From: wilson@claborn.net (Jonathan Wilson)
Date: Thu, 21 Sep 2000 13:15:55 -0500

I sure wish I could find an AVI streamer for Linux - I was
reading somewhere the other day that "writing an AVI parser"
is so simple that many schools use it in classes or somthing
like that. If it's so simple to parse it's got to be simple
to stream, so how come there isn't an AVI server for Linux?
IT would also save my company several thousand dollars :-)

===


Subject: RE: Streaming media
From: Kevin Rooney <Kevin_Rooney@sw.cc.va.us>
Date: Thu, 21 Sep 2000 14:24:57 -0400

Actually, mp3 stands for MPEG-1 Layer 3 audio.  MPEG-1, MPEG-2, MPEG-3,
MPEG-4, MPEG-7,and MPEG-21 are all video formats. Check out
http://www.cselt.it/mpeg/

===

Subject: Re: Streaming media
From: Rob Hardowa <rob@lionofzion.com>
Date: Thu, 21 Sep 2000 12:56:43 -0400

On Thu, 21 Sep 2000, you wrote:
> > P.S. mp3 is not the same as MPEG - I've noticed many people are confused about that.
> > MPEG is video, mp3 is audio only.
> 
> Unless I've gone nuts or this has change, MP3 does indeed mean MPEG, in
> a way. MP3 is short for MPEG3, which is an audio format. MPEG1 and MPEG2
> are video/audio formats. MPEG4 is also a video/audio format? Is this
> wrong? Someone feel free to correct me if it is...


MP3 = MPEG1 Layer 3 and describes the psycho-acoustic compression of audio
signals only

So MP3 is actually part of MPEG 1, but Layer 3 is the audio....
MPEG3 doesn't actually exist anymore...

>From [71] Introduction to MPEG (long) FAQ
http://www.faqs.org/faqs/compression-faq/part2/section-2.html

Q: What is MPEG, exactly?

A: MPEG is the "Moving Picture Experts Group", working under the 
   joint direction of the International Standards Organization (ISO) 
   and the International Electro-Technical Commission (IEC). This 
   group works on standards for the coding of moving pictures and 
   associated audio.

Q: What is the status of MPEG's work, then? What's about MPEG-1, -2, 
   and so on?

A: MPEG approaches the growing need for multimedia standards step-by-
   step. Today, three "phases" are defined:
   
   MPEG-1: "Coding of Moving Pictures and Associated Audio for 
           Digital Storage Media at up to about 1.5 MBit/s"  
 
   Status: International Standard IS-11172, completed in 10.92
   
   MPEG-2: "Generic Coding of Moving Pictures and Associated Audio"
   
   Status: Comittee Draft CD 13818 as found in documents MPEG93 / 
           N601, N602, N603 (11.93)   

   MPEG-3: no longer exists (has been merged into MPEG-2)
   
   MPEG-4: "Very Low Bitrate Audio-Visual Coding"
   
   Status: Call for Proposals 11.94, Working Draft in 11.96 

Q: MPEG-1 is ready-for-use. How does the standard look like?

A: MPEG-1 consists of 4 parts:

   IS 11172-1: System
   describes synchronization and multiplexing of video and audio

   IS 11172-2: Video
   describes compression of non-interlaced video signals
   
   IS 11172-3: Audio
   describes compression of audio signals 
   
   CD 11172-4: Compliance Testing
   describes procedures for determining the characteristics of coded 
   bitstreams and the decoding porcess and for testing compliance 
   with the requirements stated in the other parts

===


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