[MPlayer-dev-eng] pl_surround - Dolby Surround decoder - OK to commit?

Anders Johansson ajh at atri.curtin.edu.au
Mon Dec 3 15:28:09 CET 2001


Hi,

Check the changes in cfg-mplayer.h before you commit, the interface
has changed a bit.

Cheers,
//Anders

> Hi,
> 
> I've written an audio plugin to do surround decoding.  It will decode
> stereo pairs containing matrixed surround sound - eg Dolby Surround, Dolby
> ProLogic and ProLogic II compatible files.
> 
> This implements a basic Surround decoder, without the low pass filter for
> the rear channels.  I plan to extend it to make it more Pro
> Logic-like.  But it seems to work quite well as it is.
> 
> Many video files have sound in this format; its also used in TV
> broadcasts.
> 
> Even ordinary stereo pairs usually produce a listenable surround effect.
> 
> The effect is enabled using "-aop surround".  Output is 4-channel; you'll
> need a card that supports that, and that is correctly setup - see my notes
> in codecs.html or to the list about the SBLive, for instance.
> 
> I'll commit the code later today unless there are any objections?
> 
> Once its in I'd be pleased to have some feedback,
> 
> Steve
> 
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