opus - Jun 2015 - 24 bits samples

Hi
It pretty works for 16 bits samples but not for 24 bits samples.
In fact, I am going to implement opus on ADSP-21489 (DSP processor from 
Analog Devices), I compiled "celt directory" from opus 1.1
and used "opus_custom_demo.c". It hasn't any problem with 16 bits
samples
but when I use 24 bits samples , there is no output audio.
opus_decoder will still generate 16 bits samples and these output samples 
are saturated  . I use following function for 16 / 24 bit depth :

opus_custom_encoder_ctl(enc, OPUS_SET_LSB_DEPTH(16/24));

How can I solve this problem ?

Thanks a lot
Kazem

----------------------------------------
From: "Timothy B. Terriberry" <tterribe at xiph.org>
Sent: Tuesday, June 23, 2015 11:22 PM
To: opus at xiph.org
Subject: Re: [opus] 24 bits samples

Jean-Marc Valin wrote:
> Opus itself supports 24-bit audio and can handle all of the dynamic
> range (and then some). I *think* the opusenc command-line tool can
> handle 24-bit wav files, but I could be wrong (if not it's something
> that needs to be added).
It can (little-endian only).

_______________________________________________
opus mailing list
opus at xiph.org
http://lists.xiph.org/mailman/listinfo/opus


-------------- next part --------------
An HTML attachment was scrubbed...
URL:
http://lists.xiph.org/pipermail/opus/attachments/20150624/253c336e/attachment.htm

Well, if you're on a fixed-point DSP, then you shouldn't use the float
API. In that case, your only option is to downshift to 16-bit and use
the int API.

On 06/24/2015 08:43 AM, Kazem Baadpie wrote:
> I use following function for 16 / 24 bit depth :
> 
> opus_custom_encoder_ctl(enc, OPUS_SET_LSB_DEPTH(16/24));
OPUS_SET_LSB_DEPTH is just for telling the encoder where the noise floor
is. In this case you don't need it at all. I especially hope you weren't
passing "16/24" since that would equal zero and tell the encoder that
all your input is noise and it can consider it as silence.

Cheers,

	Jean-Marc
> How can I solve this problem ?
> 
> Thanks a lot
> Kazem
> 
> 
> ------------------------------------------------------------------------
> *From*: "Timothy B. Terriberry" <tterribe at xiph.org>
> *Sent*: Tuesday, June 23, 2015 11:22 PM
> *To*: opus at xiph.org
> *Subject*: Re: [opus] 24 bits samples
> 
> Jean-Marc Valin wrote:
>> Opus itself supports 24-bit audio and can handle all of the dynamic
>> range (and then some). I *think* the opusenc command-line tool can
>> handle 24-bit wav files, but I could be wrong (if not it's
something
>> that needs to be added).
> 
> It can (little-endian only).
> 
> _______________________________________________
> opus mailing list
> opus at xiph.org
> http://lists.xiph.org/mailman/listinfo/opus
>