[Mp4-tech] Re: Audio Reference Software Problem

[Ralph Sperschneider]

Garima Singh wrote:
> Dear Ralph,
>  
> Can you please mail me the Software Decoder archive in zip format? I 
> would like to check it at my end.
>  
> Thanks and Regards,
> Garima

Dear Garima,
I think you are on the safe side to you the software available her:
http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_IEC_14496-5_2001_Amd_6_Reference_Software/audio.zip
Best regards,
Ralph
>
> */Ralph Sperschneider <ralph.sperschneider iis.fraunhofer.de>/* wrote:
>
>     Garima Singh wrote:
>     > Hi All,
>     >
>     > I am facing a problem with Audio reference software for the streams
>     > having 3 Channels. I got the "al06_08.mp4" stream from
>     ftp.iis.fhg.de
>     > and it has 3 channels. Reference decoder
>     > executable mp4audec.exe crashes while decoding this file and i am
>     > getting an error in command prompt "No Standard for putting 3
>     channels
>     > into one file -> Using multiple files".
>     >
>     > Is support for more than 2 channels in not added in the
>     reference software?
>     >
>     >
>     > Regards,
>     > Garima
>     >
>     >
>     >
>     >
>     > Regards,
>     > Garima Singh
>     >
>
>     Hi Garima,
>
>     the message "No Standard for putting 3 channels into one file ->
>     Using multiple
>     files" is correct:
>
>     The reference software does not write more than two channels into
>     one file,
>     since there seems to be no means as to identify a particular
>     channel with a
>     particular channel position. Instead, it writes multiple mono
>     files, using
>     special file extensions to outline the channel positions.
>
>     The crash is not correct, but luckily it does not happen on my
>     site: Running the
>     decoder on my site (most recent version of the rewrite, compiled
>     on linux with
>     gcc 3.4.4) with al06_08.mp4:
>
>     mpeg4audio/bin/mp4AudVm_Tbt_VmMp4AuDecRewrite/Linux_v2_c1_eptool_sbr_gcc_O3/mp4audec
>
>     al06_08.mp4
>
>     results in the generation of three waveform files:
>
>     al06_08_f00.au
>     al06_08_f01.au
>     al06_08_f02.au
>
>     Ralph
>
>
>     -- 
>     Dipl.-Ing. Ralph Sperschneider | Phone: +49 9131 776 344
>     Fraunhofer IIS | Fax: +49 9131 776 398
>     Am Wolfsmantel 33 | mailto:ralph.sperschneider iis.fraunhofer.de
>     D 91058 Erlangen | http://www.iis.fraunhofer.de/amm/
>     _______________________________________________
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>
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>
>
>
>
> Regards,
> Garima Singh
>
> TIVR Communications - Delivering Efficient Solutions for Mobile 
> Multimedia 
> www.tivr.co.in <http://www.tivr.co.in/>

-- 
Dipl.-Ing. Ralph Sperschneider  | Phone: +49 9131 776 344
Fraunhofer IIS                  | Fax:   +49 9131 776 398
Am Wolfsmantel 33               | mailto:ralph.sperschneider iis.fraunhofer.de
D 91058 Erlangen                | http://www.iis.fraunhofer.de/amm/