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>
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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 >
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 >