[vlc] Re: AAC / HE AAC / aacPlus Audio Streams

[Benjamin PRACHT]

On Wed, Dec 15, 2004, Greg J. Ogonowski wrote :
> Hello-
> 
> We currently have an AAC / HE AAC / aacPlus Streaming Encoder that works 
> with SHOUTcast, Icecast2, and QuickTime/Darwin servers. Since the audio 
> quality and performance is better than MP3 or Windows Media, allowing lower 
> bitrates, this will be the codec of the future, as it is already the MPEG-4 
> standard.
> 
> http://www.orban.com/orban/products/stream/1010_overview.html
> 
> Winamp 5.05 and above supports AAC / HE AAC / aacPlus using HTTP/ICY.
> RealPlayer 10 supports AAC / HE AAC / aacPlus using RTSP/RTP.
> 
> There is a small stream directory started here:
> 
> http://www.opticodec.net
> 
> 
> I have tested VLC with our SHOUTcast test stream at:
> 
> http://stream.orban.com:8006
> 

This one gites a 401 error ATM...

> It does not work.
> We are using a content type of audio/aac.  This can be used to authenticate 
> connection and determine the filename extension of .aac.  MP3 uses 
> audio/mpeg and AAC / HE AAC / aacPlus uses audio/aac for SHOUTcast streams.
> 
> soma fm is streaming at:
> 
> http://war.str3am.com:7800
> 

Working good, as you said...

> That stream is using an earlier beta encoder from us.  It is using a 
> content type of audio/aacp, which might be supported as well, but it will 
> more than likely go away.  They will be changing encoders within the next 
> few days, at which point VLC will no longer play this stream.
> 
> I have also tested VLC with our Icecast2 test stream at:
> 
> http://stream.orban.com:80/test.aac
> 
> This also does not work.
> Here is a bit of information on the AAC Icecast2 streams. In order to work 
> with Icecast2 servers, we are currently using a content type of audio/mpeg 
> with a mountpoint that always ends with .aac. Looking at this, you can 
> determine which extension to apply to the StreamDown resultant file. We are 
> in the process of applying for a mime type of audio/aac. When this happens 
> the Icecast developers will be adding this to the server, and we will 
> support this content type for Icecast2 as well.  At that time, you will be 
> able to use .mp3 for audio/mpeg and .aac for audio/aac.
> 

Well, I think spawning the es demux for a audio/mpeg content type is the
expected behavior... This streams plays more or less well (still some
timing issues it seems) by focing tha aac demux (http/aac://...).

-- 
BigBen

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