[Speex-dev] Speex support for TI DaVinci processor

Andy Ngo ndno72-speex at yahoo.com
Thu Jan 4 15:39:32 PST 2007

Thanks Jean-Marc.  Is there a Speex trunk for the C64xx I can use?  Or do I have to figure what options 
to turn on (in configure) when building the library?  Thanks.

Andy Ngo

----- Original Message ----
From: Jean-Marc Valin <jean-marc.valin at usherbrooke.ca>
To: ndno72-speex at yahoo.com
Cc: jtrantow at ieee.org; speex-dev at xiph.org
Sent: Tuesday, December 5, 2006 2:52:02 PM
Subject: Re: [Speex-dev] Speex support for TI DaVinci processor

Hi Andy,

Speex itself (the library) should work fine on the C64xx because from
the libspeex point of view, just just another 32-bit architecture with
no FPU. There wasn't anything special to do to port Speex to the C64
(unlike the C5x).


ndno72-speex at yahoo.com a écrit :
> Jerry,
> Thanks for the response; basically, I need to get just the narrow
> band working now (maybe use advanced features such as jitter buffer,
> echo cancellation, VAD, etc in the future); the DSP will do the
> encode and decode simultaneously as data are available. My main
> objective is just do a voice application that runs on the ARM side of
> the DaVinci with the codec running on the DSP side; the application
> on the ARM will get from and give to the DSP Speex encoded data via
> shared memory.  On the outbound flow (to ARM), the DSP basically
> continuously samples a mic, encodes it in Speex format, and give it
> to the application on the ARM side via the shared memory; on the
> inbound flow (from ARM), the DSP gets encoded Speex data via the
> shared memory, decodes it and then plays it to the speaker.
> I know there's a Speex port for the TMS320VC5510 but will that port
> work for the C64xx series?  Thanks.
> Regards Andy
> ----- Original Message ---- From: Jerry Trantow <jtrantow at ieee.org> 
> To: ndno72-speex at yahoo.com; speex-dev at xiph.org Sent: Tuesday,
> December 5, 2006 1:55:13 PM Subject: RE: [Speex-dev] Speex support
> for TI DaVinci processor
> Do you need to encode and/or decode?  I did some work optimizing the
> DM642 speex encoder earlier this year.  I was able to reduce
> the narrow band MIPS from approx 30 to 16 using some of the #pragmas
> and optimizing the functions (Following the BlackFin example.)   The
> project I was working on has been put on hold so I haven’t looked at
> the more recent changes.  If you are tight on MIPS, there are plenty
> of opportunities to optimize Speex following the BlackFin example.
> -----Original Message----- From: speex-dev-bounces at xiph.org
> [mailto:speex-dev-bounces at xiph.org] On Behalf Of
> ndno72-speex at yahoo.com Sent: Friday, December 01, 2006 5:18 PM To:
> speex-dev at xiph.org Subject: [Speex-dev] Speex support for TI DaVinci
> processor
> Hi,
> My company just recently bought a TI DaVinci development board and
> I'm trying to port Speex to run on it.  The TI DaVinci chip has an
> ARM926 processor and a TMS320C64+ DSP in it.  I was able to get Speex
> somewhat working on a TMS320VC5510 about a year ago but I was
> wondering is there anything special I need to do to get Speex working
> on the TMS320C64+ DSP in the DaVinci chip.  I appreciate any insight
> or comment you may give me or point me to sites where I can get more
> information.  Thanks in advance!
> Andy
> ------------------------------------------------------------------------
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> list Speex-dev at xiph.org 
> http://lists.xiph.org/mailman/listinfo/speex-dev
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