[M4IF Technotes] Re: Reference Code ISO/IEC 11164-5

[Dave Singer]

At 14:38 +0530 7/14/03, Umang Garg wrote:
>Dear Ralph,
>
>Further to your suggestion ( below) of building our own *.lib files 
>for MPEg-4 AAC; I will like to know want to know what is the 
>difference between:
>
>libisomp4 and libisomedia
>
>They seem to have the same set of source files except the directory 
>containing the source files  for Libisomp4 contains one additonal 
>file called MJ2Atoms.c

yes, libisomedia represented an update with the support for motion 
jpeg 2000 (and many bug fixes).
>
>Best Regards,
>
>Umang Garg
>NeoMagic Design Center
>
>
>Ralph Sperschneider wrote:
>
>>Kannan GS Nambiar wrote:
>>
>>>Hi all,
>>>
>>>         I have recently procured a collection of reference 
>>>software from ISO for 11164 MPEG 4 Standard. I am basically 
>>>interested in AAC LC Decoder which is part of 11164-3.
>>>
>>>         I am trying to run this code on windows XP which is not 
>>>working out.So please anyone of you tell me for which Windows OS 
>>>this code is developed for.I mean is it for NT or 2000.
>>
>>
>>The reference software (C-code) is not developed for a certain 
>>Windows OS at all. It was developed mainly under Unix systems, and 
>>is basically intended to run with gcc. Some contributors provided 
>>some *.ds[pw] files, but they might be outdated.
>>
>>>The code is failing inside the libtsp.lib which handles the I/O 
>>>operations like file open, file close etc.
>>>
>>>         The reference code consists of two libraries
>>>                 1:     
>>>\natural\rewrite\mp4AudVm\win32\lib\libisomp4.lib
>>>                 2:      \natural\rewrite\mp4AudVm\win32\lib\libtsp.lib
>>>         and I am using the workspace 
>>>\natural\rewrite\mp4AudVm\win32\mp4v2dec.dsw
>>
>>
>>I wonder how libraries found their way into the distribution. You 
>>are strongly encouraged not to use these libraries but to build 
>>them on your own. The libisomp4 / libisomedia should be available 
>>as source code as part of the Systems reference software. The 
>>libtsp source code is available here: 
>>ftp://ftp.tsp.ece.mcgill.ca/pub/AFsp.
>>
>>>         So please advise me what I am supposed to do as I do not 
>>>have the source code for these libraries.
>>
>>
>>This problem should now be solved.
>>
>>>Shall I change my OS from XP to NT??
>>
>>
>>I guess this is not necessary.
>>
>>>Thanks In Advance,
>>>KGSN.
>>
>>
>>Best regards,
>>
>>Ralph
>
>
>
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-- 
David Singer
Apple Computer/QuickTime