opus - Sep 2009 - FIXED_POINT

I have build celt with FIXED_POINT option (latest 0.6.1 as well as from the
git repo) on windows. However I am not getting a valid output (all samples
are saturated) when I try to decode with this version.  The input file was
encoded with the same fixed point version. Does fixed point version work at
all?

 

Following are the command line settings;

Samplerate; 48000

Channels: 2

Framesize: 256

Bytesperpacket: 1024

Complexity: 10

 

Note that the floating point version works fine with the above settings.

 

Thanks,

Elston

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On Tue, Sep 15, 2009 at 5:12 AM, Elston Sa <jose at rebaca.com>
wrote:
> I have build celt with FIXED_POINT option (latest 0.6.1 as well as from the
> git repo) on windows. However I am not getting a valid output (all samples
> are saturated) when I try to decode with this version. ?The input file was
> encoded with the same fixed point version. Does fixed point version work at
> all?
Yes, fixed point it tested in parallel with floating point. Since you
say you're building on windows, is it possible that you haven't setup
the correct defines for fixed point mode? Or is this a cygwin build
configured through autotools?
> Following are the command line settings;
> Samplerate; 48000
> Channels: 2
> Framesize: 256
> Bytesperpacket: 1024
> Complexity: 10
You're asking CELT for 1.536Mbit/sec output, it's also possible that
you're triggering a fixed-point specific bug. I don't to regular
testing at rates that high.  Does it work at more typical rates such
as 128 bytes per packet?