[Mp4-tech] Query on EAAC+ test streams

Wed Feb 23 10:39:04 ESTEDT 2005

Hello,
true. That directory is actually:
ftp://[email protected]/guests/mpeg4audio/incoming/testSequences/mpeg4audio-conformance/compressedMp4
/Andreas
mp4-tech-bounces lists.mpegif.org wrote on 23/02/2024 05:47:55 AM:
> 
> Hello Andreas,
>       I tried to get the conformance test streams from the FhG ftp-
> site given by you, but I am not able to access the conformance test 
streams.
> The error what i got when i try to access the site is 
> 
> The resource requested could not be accessed. The following response
> received from the FTP server may contain an explanation.
> 
> >>> TYPE A200 Type set to A.>>> PASV227 Entering Passive Mode (153,
> 96,172,3,197,152)>>> RETR /mpeg4audio-conformance/compressedMp4550 
> /mpeg4audio-conformance/compressedMp4: No such file or directory.
> 
> 
> Thanks and Regards
> Shreya
> 
> 
> 
> 
> On Tue, 22 Feb 2024 Andreas Schneider wrote :
> >Hello,
> >
> >the enhanced aacPlus conformance streams come in three flavours:
> >- conformance streams for AAC-LC
> >- conformance streams for SBR
> >- conformance streams for PS
> >
> >The first two are available from the FhG ftp-site (
> >ftp://mpaudconf:[email protected]/mpeg4audio-conformance/
> >compressedMp4/). For AAC and SBR, 3GPP conformance is identical to MPEG
> >conformance.
> >The relevant AAC conformance bitstreams are prefixed alXX, where XX is 
a
> >two-digit number.
> >The SBR conformance bitstreams are named: al_sbr_*
> >
> >The 3GPP PS conformance bitstreams don't exist yet. PS conformance in 
3GPP
> >is currently under discussion.
> >The effort of defining PS conformance is ongoing within MPEG. Some
> >preliminary testbitstreams are in the subdirectory sbr_ps_new/ on the
> >abovementioned ftp-site.
> >
> >For details about conformance testing, please consult:
> >- ISO/IEC 14496-4:2004 (for AAC-LC)
> >- ISO/IEC 14496-4:2004/FDAM 8 (for SBR)
> >
> >Regards,
> >
> >Andreas
> >
> >mp4-tech-bounces lists.mpegif.org wrote on 2024-02-22 10:55:43:
> >
> > > Hello experts,
> > >
> > > How to get the Enhanced AAC+ conformance streams or any other test
> > > streams?
> > > And if there's any tool available for generating such streams.
> > >
> > > Thanks!
> > >
> > > Best Regards,
> > >
> > >  Zhang Ying
> > > iNet: 8-752-1572
> > > Tel:  +86-21-52574545-1572
> > >
> > >
> > > _______________________________________________
> > > NOTE: Please use clear subject lines for your posts. Include [audio,
> > > [video], [systems], [general] or another apppropriate identifier to
> > > indicate the type of question you have.
> > >
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> > > guidelines found at http://www.mpegif.org/public/documents/vault/mp-
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> >
> >
> >--
> >Andreas Schneider, Research Engineer
> >
> >Coding Technologies GmbH
> >Deutschherrnstr. 15-19
> >90429 Nuernberg, Germany
> >phone: +49 (0) 911 92891 -26
> >fax: +49 (0) 911 92891 -99
> >
> >mailto:snd CodingTechnologies.com
> >
> >_______________________________________________
> >NOTE: Please use clear subject lines for your posts. Include 
> [audio, [video], [systems], [general] or another apppropriate 
> identifier to indicate the type of question you have.
> >
> >Note: Conduct on the mailing list is subject to the Antitrust 
> guidelines found at http://www.mpegif.org/public/documents/vault/mp-
> out-30042-Antitrust.php
> 
> 
> [image removed] _______________________________________________
> NOTE: Please use clear subject lines for your posts. Include [audio,
> [video], [systems], [general] or another apppropriate identifier to 
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> 
> Note: Conduct on the mailing list is subject to the Antitrust 
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--
Andreas Schneider, Research Engineer
Coding Technologies GmbH
Deutschherrnstr. 15-19
90429 Nuernberg, Germany
phone: +49 (0) 911 92891 -26
fax: +49 (0) 911 92891 -99
mailto:snd CodingTechnologies.com