[FFmpeg-devel] [PATCH] HE-AAC v1 decoder

Alex Converse alex.converse
Wed Jan 27 07:43:08 CET 2010


On Wed, Jan 27, 2010 at 1:39 AM, Mike Melanson <mike at multimedia.cx> wrote:
> Alex Converse wrote:
>>
>> it with AAC to make an HE-AAC v1 decoder. A filterbank compatible with
>
> I have forgotten a lot about the various forms of AAC. Please educate me:
> Does 'v1' refer to a type of HE-AAC or does it just denote round 1 of the
> FFmpeg review process?
>
> Thanks...

It's a type of AAC

HE-AAC v1 is AAC-LC + SBR
HE-AAC v2 is AAC-LC + SBR + ParametricStereo



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