[Mp4-tech] RE: Mp4-tech Digest, Vol 9, Issue 16

Thu Apr 22 11:26:10 ESTEDT 2004

Hi experts,
	I am unable to predict the differences between MPEG4 Video standard and
WMV9( MS video codec). So pls let me know the differences between those two
standards both theoritically and practically. Give me some good documents or
atleast some weblinks regarding the same.
thanks,
James.
-----Original Message-----
From: mp4-tech-bounces lists.mpegif.org
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Sent: Wednesday, April 21, 2024 9:32 PM
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Subject: Mp4-tech Digest, Vol 9, Issue 16
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Today's Topics:
   1. MPEG-4 condiguration information (rakesh  kothari)
   2. how can i use ISO/IEC 14496-4's test bitstreams (tim huang)
   3. RE: puzzle about MPEG-4's video profile (i.g.richardson rgu.ac.uk)
   4. query reg Mpeg4 ( )
----------------------------------------------------------------------
Message: 1
Date: 20 Apr 2024 23:30:15 -0000
From: "rakesh  kothari" <rkothari_iit rediffmail.com>
Subject: [Mp4-tech] MPEG-4 condiguration information
To: mp4-tech lists.mpegif.org
Message-ID: <20040420233015.31891.qmail webmail36.rediffmail.com>
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Hi,
I have a beginners question on MPEG-4 and please forgive me if this is not
the right forum to ask this question.
I am trying to do live streaming of MPEG-4 video over RTP/UDP using mp4live
in MPEG4IP. What I couldn't understand is how is the "config"
parameter is generated in the SDP file. Can't we use any inband mechanism to
transmit that configuration information?
Is SDP is a required mechanism for tuning into the live streaming or is
there any other mechanism also?
Apart from SDP parameters is there any other way for client to know the
bit-rate and frame-rate at which the live transmission is going on? I mean
mpeg-4 packet inside RTP payload have any control information like this?
Where could I get the information about MPEG-4 packet format (which goes
into RTP payload while streaming)?
I would really appreciate if someone could help me out on this.
Thanks,
Rakesh Kothari
------------------------------
Message: 2
Date: Wed, 21 Apr 2024 10:05:26 +0800
From: "tim huang" <h_jch 163.com>
Subject: [Mp4-tech] how can i use ISO/IEC 14496-4's test bitstreams
To: "=?gb2312?B?TVBFRy0008q8/sHQse0=?=" <mp4-tech lists.mpegif.org>
Message-ID: <ICEPIPCAGDAMIJCCGACOAEDPCAAA.h_jch 163.com>
Content-Type: text/plain;	charset="gb2312"
	hi..all
	I download the test bitstreams form Internet,and use the decoder provided
by microsoft-vfdis-v10-990812 to decoder these.but i find that that output
file always be empty.
	and how about you use these test bitstreams,or what decoder are you used?
	thanks
	tim huang
------------------------------
Message: 3
Date: Wed, 21 Apr 2024 08:59:01 +0100
From: <i.g.richardson rgu.ac.uk>
Subject: RE: [Mp4-tech] puzzle about MPEG-4's video profile
To: <h_jch 163.com>
Cc: mp4-tech lists.mpegif.org
Message-ID: <80A9EC5F99C0744896728B5579E36D364E4601 EXVS001.rgu.ac.uk>
Content-Type: text/plain;	charset="Windows-1252"
Hello
There are 19 MPEG-4 Visual profiles (last time I counted !) but most
manufacturers / developers have gone with Simple Profile and Advanced Simple
Profile (coding of rectangular frames). One or two manufacturers made
announcements about other profiles (e.g. Dicas, Core Profile) but I notice
that Dicas are no longer advertising Core (www.dicas.de).
AVC is not a profile of MPEG-4 Visual but an alternative coding standard
(also part of the MPEG-4 portfolio, published as MPEG-4 Part 10 and also
H.264).
Regards
Iain Richardson
www.vcodex.com
-----Original Message-----
From: mp4-tech-bounces lists.mpegif.org
[mailto:mp4-tech-bounces lists.mpegif.org] On Behalf Of tim.huang
Sent: 20 April 2024 07:35
To: MPEG-4????
Subject: [Mp4-tech] puzzle about MPEG-4's video profile
	hi..all
	i am puzzling about MPEG-4's video profile.
	From MPEG's home page,we can see MPEG-4 video profile include below:Simple
Profile, Simple Scalable Profile,Core Profile,Main Profile,N-bit,Scaleable
Texture Profile,Simple Face Profile,Hybrid Profile,Basic Animated Texture
Profile. http://www.chiariglione.org/mpeg/faq/mp4-vid/mp4-vid.htm
	From ISO/IEC JTC1/SC29/WG11 W4457,we can see two MPEG-4 video profile
include below:Simple Studio Profile and Core Studio Profile.
	From ISO/IEC JTC1/SC29/WG11MPEG2003/N6231,we only see  Simple
Profile,Advance Simple Profile and three AVC Profile.
	I looked for it at some company's web site, and only finded that they
support Simple Profile, Advance Simple Profile and AVC.Is it mean that now
MPEG-4 only have these Proflie?What the other profiles use?
	Can someone help me?
	thanks!!
	tim.huang  2024.4.20
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Message: 4
Date: Wed, 21 Apr 2024 10:05:34 -0400 (EDT)
From: " " <oviya excite.com>
Subject: [Mp4-tech] query reg Mpeg4
To: Mp4-tech lists.mpegif.org
Message-ID: <20040421140534.85968B73B xprdmailfe19.nwk.excite.com>
Content-Type: text/plain; charset="us-ascii"
 Dear Friends,        Thank u all giving such a great information to me.. i
have downloaded MPEGIP and compiled itunder linux but i am getting follwing
error if any body have used MPEG4IP please tell me
__________________________________________In file included from
../../include/SDL_endian.h:60,from SDL_blit.h:31,from
SDL_RLEaccel.c:101:/usr/include/asm/byteorder.h:6:2: warning: #warning using
private kernel header;include <endian.h> instead!SDL_RLEaccel.c: In
function `RLEClipBlit':SDL_RLEaccel.c:845: error: invalid `asm': invalid
expression as operandSDL_RLEaccel.c:845: error: invalid `asm': invalid
expression as operandSDL_RLEaccel.c:845: error: invalid `asm': invalid
expression as operandmake[6]: *** [SDL_RLEaccel.lo] Error 1make[6]: Leaving
directory `/opt/tvar/Oviya/mpeg4ip-1.0/lib/SDL/src/video'make[5]: ***
[all-recursive] Error 1make[5]: Leaving directory
`/opt/tvar/Oviya/mpeg4ip-1.0/lib/SDL/src/video'make[4]: *** [all-recursive]
Error 1make[4]: Leaving direc!
 tory `/opt/tvar/Oviya/mpeg4ip-1.0/lib/SDL/src'make[3]: *** [all-recursive]
Error 1make[3]: Leaving directory
`/opt/tvar/Oviya/mpeg4ip-1.0/lib/SDL'make[2]: *** [all-recursive] Error
1make[2]: Leaving directory `/opt/tvar/Oviya/mpeg4ip-1.0/lib'make[1]: ***
[all-recursive] Error 1make[1]: Leaving directory
`/opt/tvar/Oviya/mpeg4ip-1.0'make: *** [all] Error
2---------------------------------------------------------------------------
-----------thank uregardsOviya
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End of Mp4-tech Digest, Vol 9, Issue 16
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