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

[Umang Garg]

Hi Dave, Ralph :
So is it right to say that libisomedia is a more updated version 
compared to libisomp4 ?
Hence it should imply that we should use libisomedia.
Then , what is the need for libisomp4  ?
Regards,
Umang Garg
NeoMagic Design Center
Dave Singer wrote:
> 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 some *.ds[pw] files, but they might be outdated.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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