[opus] OPUS at Texas Instruments C6418

[Robert Madinger]

Hi Jean-Marc,

thank you for that suggestion!
It seems that the file "fixed_c6x.h" is not part of the Opus sources, so the compiler cannot find it after enabling the TI_C6X_ASM config option.
Maybe it was only part of an early version of the Opus sources?
I looked for the file in versions V1.1, V1.1.1, V1.2alpha and V1.3 but did not found it.

Do you have an idea, where I can get the file?

Thank you and best regards,
Robert




AVT Audio Video Technologies GmbH
Nordostpark 91 | D-90411 Nuernberg
T: +49 911 5271-0 | F: +49 911 5271-100
RMadinger at avt-nbg.de | www.avt-nbg.de
Managing Director:  Wilfried Hecht
Registered Office:   Nuernberg, HRB 14317
          AVT is now on Twitter - Follow @AVTGmbH




-----Ursprüngliche Nachricht-----
Von: Jean-Marc Valin <jmvalin at jmvalin.ca> 
Gesendet: Freitag, 19. Oktober 2018 20:04
An: Robert Madinger <rmadinger at avt-nbg.de>; opus at xiph.org
Betreff: Re: [opus] OPUS at Texas Instruments C6418

Hi Robert,

There's also a TI_C6X_ASM config option, that causes the fixed_c6x.h header to be used, but I think it hasn't been tested in years. I don't know if it still works, but if not it's probably not too hard to fix (patch welcome). The fixed_c6x.h file can also probably be extended to cover more of the C6x arithmetic operators. Beyond that, you'd have to go to assembly/intrinsic optimization of specific functions.

Cheers,

	Jean-Marc


On 10/19/2018 11:37 AM, Robert Madinger wrote:
> Dear Opus family,
> 
>  
> 
> we have implemented the Opus codec at a Texas Instruments DSP C6418.
> 
> It is working fine!
> 
>  
> 
> Does anyone has experience with the configuration of the codec for a 
> speed optimized implementation on that DSP?
> 
> At the moment, we use the following settings:
> 
>  
> 
> #define NONTHREADSAFE_PSEUDOSTACK                           1
> 
> #define
> FIXED_POINT
> 1
> 
> #define DISABLE_FLOAT_API
>                 1
> 
> #define
> OPUS_BUILD
> 1
> 
> #define
> CONFIG_TI_C6X                                                              
> 1
> 
>  
> 
>  
> 
> Are there any better or further possibilities to get a speed optimized 
> code on the TI C6418?
> 
> Code size is less relevant.
> 
>  
> 
> Many thanks in advance!
> 
> Best regards,
> 
> Robert
> 
>  
> 
>  
> 
> Robert Madinger
> 
> avt_logo_signatur
> AVT Audio Video Technologies GmbH
> Nordostpark 91 | D-90411 Nuernberg
> T:+49 911 5271-0 | F: +49 911 5271-100_ RMadinger at avt-nbg.de 
> <mailto:%0bRMadinger at avt-nbg.de>_| www.avt-nbg.de 
> <http://www.avt-nbg.de/> Managing Director:  Wilfried Hecht Registered 
> Office:   Nuernberg, HRB 14317
> 
>      Twitter_logo_blue Signatur     *AVT is now on Twitter - **Follow 
> @AVTGmbH <https://twitter.com/avtgmbh>*
> 
>  
> 
> 
> 
> _______________________________________________
> opus mailing list
> opus at xiph.org
> http://lists.xiph.org/mailman/listinfo/opus
>