Re: AAC-HD, Flash AAC
Gregory Wright <[email protected]>
| Newsgroups | gmane.comp.multimedia.helix.devel |
|---|---|
| Message-ID | <[email protected]> |
On Jul 16, 2009, at 6:56 AM, John Stirling wrote: > Hi Eric, > > Sorry, getting pushed by our marketing people for an answer on this.. > > Just need confirmation of - > (re flv) > What branch is that supported on ? > Also, I presume once we have the appropriate .flv plugin then other > datatypes via .flv (eg mp3) will also be supported ? It is on HEAD and 310Atlas for sure. I also believe it was used on some Cayenne branches, but I was not part of that work so I am not sure. Did you need an answer on a particular branch? I would guess MP3 is supported, but someone more involved in FLV playback would have to say for sure. > > (re AAC-HD) > Are there any plans to support it ? "The HD-AAC encoding process embeds a core layer that can be played on existing music players and mobile phones that support the standard AAC format, such as Apple's iPod and the iPhone. The fully lossless signal will be available for playback in future devices that feature an HD- AAC decoder, according to the company. HD-AAC files can also be streamed to multiple devices at varying bitrates to help maximize the sound quality under varying network conditions." It sounds like AAC-HD will playback fine via current AAC decoders. So they say anyway. If the file formats/mime-types are the same and the bitestream really is compatible with normal AAC, the it "should just work(tm)". --greg. > > Thanks > John > > > John Stirling wrote: >> Eric Hyche wrote: >>> John, >>> >>> I'm not familiar with the term "AAC-HD". Is there a specification/ >>> definition for it somewhere? >>> >>> >> Some links below >> >> http://www.iis.fraunhofer.de/EN/pr/Presse/Press_Releases_2008/HD-AAC_by_Fraunhofer_IIS.jsp >> >> http://www.macworld.com/article/131447/2008/01/hdaac.html >> >>> As far as Flash AAC, I assume you mean AAC within a .flv or .f4v >>> file. If so, then yes, this is supported. >>> >>> >> Yes, .flv. >> >> What branch is that supported on ? >> >> Also, I presume once we have the appropriate .flv plugin then other >> datatypes via .flv (eg mp3) will also be supported ? >>> Eric >>> >>> ======================================= >>> Eric Hyche ( >>> [email protected] >>> ) >>> Principal Engineer >>> RealNetworks, Inc. >>> >>> >>> >>> >>>> -----Original Message----- >>>> From: >>>> [email protected] [mailto:helix-client- >>>> [email protected] >>>> ] >>>> On Behalf Of John Stirling >>>> Sent: Monday, July 13, 2009 3:37 AM >>>> To: Helix client dev >>>> Subject: [Helix-client-dev] AAC-HD, Flash AAC >>>> >>>> Are either of these formats currently supported by helix ? >>>> >>>> If so - >>>> . what branch are they available on. >>>> . what are the approx MIPs requirements for AAC-HD >>>> >>>> If not - >>>> . are there any plans to add support and what are the timescales. >>>> >>>> >>>> >>>> >>>> >>> >>> >>> >>> >> >> >> _______________________________________________ >> Helix-client-dev mailing list >> >> [email protected] >> http://lists.helixcommunity.org/mailman/listinfo/helix-client-dev >> >> >> > > _______________________________________________ > Helix-client-dev mailing list > [email protected] > http://lists.helixcommunity.org/mailman/listinfo/helix-client-dev