[MPlayer-users] Re: [BUG] Wrong audio channel mapping when playing WMV3/WMVHD files

[Dominik 'Rathann' Mierzejewski]

On Tuesday, 31 October 2006 at 18:39, Corey Hickey wrote:
> Frank Aurich wrote:
> >>> I did some digging and found the WMA channel mapping to be (supposedly):
> >>>
> >>> FL FR C LFE SL SR
> >> Did you find this in some documentation somewhere? If so, can you send a
> >> URL? It would be useful for adding support for remapping other
> >> configurations, such as 5.0 and 4.0.
> >>
> >> -Corey
> > 
> > I found this tool on Microsofts website:
> > http://www.microsoft.com/downloads/details.aspx?FamilyId=49A52710-78C1-4CB4-B94F-682E338062CC&displaylang=en
> > Microsoft Windows Media Audio 9 Professional Channel Mask Mapping Tool
> > 
> > It's in-built helpfile lists these mappings:
> > 
> > 4.0: FL FR BL BR
> > 4.0: FL FR SL SR
> > 5.0: FL FR C BL BR
> > 5.1: FL FR C LFE BL BR
> > 5.1: FL FR C LFE SL SR
> > 6.1: FL FR C LFE BL BR BC
> > 7.1: FL FR C LFE BL BR SL SR
> > 7.1: FL FR C LFE BL BR FLOC FROC
> 
> Thanks, that's helpful.
> 
> > I'm not really sure what the difference is between BL/BR (back left/right) and 
> > SL/SR (surround left/right).
> 
> I think it's (usually) approximately like this for 7 speakers:
> 
>    FL   C   FR
> 
> 
>  SL     X     SR
> 
> 
>    BL      BR
> 
> 
> ...and like this for 5 speakers:
> 
>    FL   C   FR
> 
> 
>         X
> 
>    SL       SR
> 
> 
> ...where 5.x setups often have the surround speakers a little rearward.

I'm not sure if you aren't mixing SL/R with BL/R. I've always thought
that 5.1 was:

FL   C   FR
    LFE

     X

BL       BR

Regards,
R.

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