similar to: Porting CELt to the C5505

I am having trouble understanding the stack allocation scheme when using a C55xx device. From what I can tell, the GLOBAL_STACK_SIZE is set in arch.h to 100,000 bytes (when using FIXED_POINT), which is then used in the ALLOC_STACK macro found in stack_alloc.h. This macro seems to say, if global_stack==0, then call celt_alloc_scratch, found in os_support.h, which in turn attempts to allocate (using

In order to determine the optimum heap size requirements for my embedded C55xx design, I have used the following to get the encoder and decoder memory requirements: size = opus_encoder_get_size(config.channels); enc = malloc(size); error = opus_encoder_init(enc, config.Fs, config.channels, config.application); size = opus_decoder_get_size(config.channels);

Hi, I am an applications engineer for Texas Instruments in the UK. I am trying to port the CELT codec to the C5505, this has HW accelerated FFT engine (http://focus.ti.com/docs/prod/folders/print/tms320vc5505.html). I am having problems with the stack allocation. Do you have any reference code that compiles for the C55x under CCS (code composer studio)? *******************************

Jean-Mark, Tim, Could either of you expound on the following comment in cwrs.c? /*If _k==0, the following do-while loop will overflow the buffer.*/ ---------------------------------------------------------------- ...because the following do-loop does overflow the buffer when k=126 k=2; do _u[k]=(k<<1)-1; while(++k<len); Thanks, MikeH -------------- next

Jean-Marc, It appears that since testcelt reads a WAVE file from disck and passes the data directly to celt_encode, so that celt_encode's "in" buffer must be expecting little-endian formatted packets. Is this correct? Is there endiness switch somewhere? Thx MikeH -------------- next part -------------- An HTML attachment was scrubbed... URL:

Gents, My TI C55xx complier is complaining about (in opus_encoder.c, opus_encode()): st->silk_mode.payloadSize_ms = 1000 * frame_size / st->Fs; where .payloadSize_ms is opus_int, frame_size is an int, and Fs is a long. Should one of these be cast differently? Thx, MikeH -------------- next part -------------- An HTML attachment was scrubbed... URL:

I am attempting to port CELT to the TI C5515 DSP. I am compiling/assembling/linking with Code Composer Studio 4. I have enabled the TI_55 specific optimizations in my config.h file per this <http://lists.xiph.org/pipermail/celt-dev/2008-December/000033.html> post. However, I am getting several "undefined symbol" linking errors that do not make sense to me. According to the error

Hi, I am currently working on C5505 USB stick http://focus.ti.com/docs/toolsw/folders/print/tmdx5505ezdsp.html to sample input voice and encode it. For compiling and buring usual programs, I am using CCStudio 4.0. For encoding voice samples, I am using Speex codec binary http://downloads.xiph.org/releases/speex/speex-1.2beta3-win32.zip or

Hi Randy, Thanks for reply. I have one question though. While compiling the speex (downloaded from http://downloads.xiph.org/releases/speex/speex-1.2rc1.tar.gz), I gave ./configure -enable-ti-c55x option and then built the library through make and make install using cygwin. In this case, I get this error "error: member "bits.o" of archive

Tim, et al, I have run into several problems with V0.8.0. I will address them seperately. 1. My compiler is complaining about the following code in celt.c which seems to define metric first as celt_word32, then as celt_word16. Am I mis-interpreting something? ?? VARDECL(celt_word32, metric); ?? ALLOC(metric, len, celt_word16); Thx MikeH -------------- next part -------------- An HTML attachment

"frame_size = PCM audio in signed 16-bit format (native endian). There must be exactly frame_size samples per channel." Sorry for such a simple request, but could you please clarify the definition of frame_size when using stereo audio channels? When you say "frame_size samples" does this mean that, if my frame_size is defined as 128, there are 64 left samples and 64 right

Gents, "CELT now supports a larger dynamic range, suitable for encoding 24-bit audio (float version only)." I realize this was way back in V6, but is it still true? Thx, MikeH -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/opus/attachments/20111010/d38482b5/attachment-0002.htm

I am trying to get CELT running on a TI 5515 and am having trouble creating a heap large enough to accommodate all of the dynamically created variables. In fact, I would much prefer to have all variables created statically. Could someone give me a short tutorial on what I need to do the create all of the requisite variable statically? Thx, MikeH -------------- next part -------------- An

Hi, I am working on a project which intends to enable voice communication over zigbee. As the handset node, I am using TI's C5505 ezDSP USB stick. I want to run speex encoder on it. After encode, I intend to send it over CC2520 radio to the backend zigbee network. The C5505 ezDSP has input and output for AIC3204 codec which I am using to give sampled input from laptop (lineout) and playback

Oh my. The c:/Program Files/Speex/libspeex.lib file is a Windows/x86 library file. The code within this files is not C55x binary but x86 binary. Further, the format of a Windows/x86 library file is different from that produced by the C55x code generation tools' archive utility, and that is what the linker is complaining about. As far as I know, there is no pre-developed C55x speex library,

Vijay, I used Code Composer Studio 3.x to directly build everything. There could certainly be issues with the ./configure, make, make install process. There are .pjt files supplied to build in the CCS simulator, so I suggest that you try that. The c55x option is just a compile switch, which deals with the fact that this platform has a 16-bit "byte", among other things. Regards, Jim

Gents, In Version 8.1, QCONST16 is defined as follows in arch.h within the FLOATING_POINT section: #define QCONST16(x,bits) (x) However, in both celt.c and quant_bands.c, QCONST16 is referenced without a conditional FLOATING_POINT define. So when I compile as FIXED_POINT I get an "undefined identifier" for QCONST16. Am I doing something wrong? Thx, MikeH

> I suggest that you start by looking at 8kbps, complexity 0. Actually, I strongly recommand *against* using complexity 0, unless you're really desperate for a few MIPS. The complexity reduction compared to 1 is small, but the loss in quality can be significant. > I (and others) > are running that on a TI C55xx DSP, and it runs a little under 30 MIPs when > I last checked, with

I am having trouble compiling Opus for my TI55xx project. When I define CONFIG_TI_C55X, I get several compile errors regarding int vs long and int vs opus_int32. (i.e. int *value = va_arg(ap, opus_int32*); in opus_decoder_ctl). Also, shouldn't the following be included at the top of opus_types.h? #ifdef HAVE_CONFIG_H #include "config.h" #endif Thanks.

Greetings, I've just started porting speex to a TI C5509 DSP. It doesn't look like it's going to be too painful, but there are a couple of quirks about the C5x. 1) chars are 16 bits because memory addresses are for 16bit words 2) ints and short are also 16 bits (so sizeof(char) = sizeof(short) = sizeof(int) = 1) 3) the c5x is essentially big endian My plan is to change int and