[MPlayer-dev-eng] Re: Fwd: [ANNOUNCE] First release of dtsdec

[Gildas Bazin]

On Wednesday 11 February 2004 21:04, Peter Niemayer wrote:
> 
> > Of course there is still much work to be done on dtsdec and a few things 
are 
> > still not implemented but it is nonetheless working quite well on all 
the 
> > samples I could get my hand on (not a lot though, I have to admit).
> 
> Can you name some special kinds of samples you are missing?
> 

Right now I'm looking for samples with joint channels coding as well as 
sum-difference channels coding. I suspect joint channels coding might not 
be common though because DTS is usualy targetted at high bitrate / high 
quality applications.
I'd also like to have a few samples using high frequencies vector 
quantization. I already have a couple of these, but more would be nice. 

Basically if you see libdts output a debug message on a stream, that should 
mean that I'd be interested in having a look at this stream ;)

> > VLC media player also becomes the first Open Source application able to 
play 
> > DTS audio. You can find pre-compiled versions of VLC with DTS support 
over 
> > here: http://download.videolan.org/pub/testing/vlc-0.7.1-test1/
> 
> I used mplayer so far to replay DTS audio tracks, decoding in the 
amplifier, though.

DTS over S/PDIF has been available in VLC for some time too ;)

> Once libdtsdec is available in mplayer as well, I'd love to see it decode 
the
> DTS tracks in .mkv files in software, too...
> 

Shouldn't be difficult as the api is almost identical to the liba52 one.
Have a look at doc/libdts.txt. But bear in mind that some things are not 
implemented yet (Dynamic Range for instance).

--
Gildas