[Vorbis] Multi-channel support

[John Edwards]

Section 4.3.9 Output Channel Order of the Vorbis I Spec refers.

If you use oggdropXPd to decode the file, the output channels will be 
remapped from the vorbis channel map onto the requiements of 
WAVEFORMATEXTENSIBLE and will contain the correct header.

John

Daniel PEACOCK wrote:
> Hi All,
> 
> Are multi-channel (more than 2) formats fully supported in the OggVorbis 
> specification ? I couldn't find any information about multi-channel 
> support on xiph.org. I've used 'oggdropXPd' to encode a 5.1 wavefile and 
> the Xiph OggVorbis libraries (vorbisfile.dll) to decode the file 
> successfully, however the order of the channel interleaving is different 
> to the original wave file (a 5.1 WAVEFORMATEXTENSIBLE file). Is the 
> channel order specified for OggVorbis files, or is there a way I can 
> retrieve this information from the file itself ?
> 
> On a related note ... do any of the encoders assume that a particular 
> channel contains LFE only ?
> 
> Thanks for any help you can give me.
> 
> Dan
> 
> 
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