[FFmpeg-devel] [PATCH v3 3/3] avcodec/aacdec: Translate PCE to avutil channel layouts

[pkv.stream]

> Do you know which spec the contains the eratta for top channels? There
> doesn't seem to be much of value in Amd.6. Do you have any real
> examples of a multichannel stream with a top center speaker or any
> supporting documentation you could point me at?

Hi

The relevant spec is ISO/IEC 14496-3:2009/AMD.4:2013  and  can be found 
here:

http://www.doc88.com/p-7754944656492.html

pce has a new element in the comment field :

height_extension_element ;

when it is not specified, the channel elements default to normal height.

So this removes any ambiguity on the channel positions.

I'll give a shot at adding that both on encoder and decoder in the PCE 
bits next week.

Best


>
> Thanks,
> Alex
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