Displaying 20 results from an estimated 2000 matches similar to: "Port to uClinux"
2004 Aug 06
0
Port to uClinux
OK, what happens is that I try to allocate one big chunk of memory, so
that no other allocation is needed in run-time. The biggest part of that
memory is used for a custom stack I use everywhere because C doesn't
allow variable-length stack arrays. The sizes I used will work for all
configurations (any mode/bit-rate/complexity), but if you're only
interested in a subset, you can probably
2005 Feb 19
2
memory usage
Hi
I am currently trying to port speex v1.1.6 to a microcontroller with
very limited memory (<64Kbyte RAM).
what I found when initialising the encoder, a chunk of 32Kb was
attempted to be alloced, which failed:
src/nb_celp.c:
void *nb_encoder_init(const SpeexMode *m)
{
/* snip */
st = (EncState*)speex_alloc(sizeof(EncState)+8000*sizeof(spx_sig_t));
/* snip */
}
same goes for the
2005 May 25
3
Speex on TI C6x, Problem with TI C5x Patch
Hi Jean-Marc, Hi Jim,
I have also seen some problems with the 1.1.8 release on the C55x. So far I
have boiled down the issues to the following:
1) We need our own "fixed_xx.h" header file. I don't know why, and haven't
had time to investigate, but there is a definite improvement when I use the
attached fixed_c55x.h file which has turned all the maths into inline
functions.
2005 Feb 19
0
memory usage
Hi Alfred,
First thing I'd like to ask is whether you're trying to achieve
real-time performance, as I find it very unlikely that Speex could run
in real-time on a micro-controller.
Regarding bufSize, no you can't just make it the size you like. Now,
it's possible to decrease the amount of memory allocated if e.g. you
only use complexity 1. You can also assume that the stack is
2005 Apr 20
2
Speex-1.1.7 seems to crash with --enable-sse (on P3/GCC-3.2)..
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
<title></title>
</head>
<body bgcolor="#ffffff" text="#000000">
<b></b>Hi,<br>
<br>
I also tried to build speex
2005 Jul 20
1
Speex Windows from 1.1.6 source
Hi All,
I am using Speex for encoding/decoding the audio stream for
my streaming application. I have used almost the same code
In the sampleenc.c and sampledec.c, except that I have used
The buffers from the mic as input for encoder and encoded audio
As input for decoder, instead of files input.
My Problem is the audio played on the receiving side after decoding
Is only a "hush" or it
2007 Mar 14
2
Memory Allocation to St
Can anyone tell me why the size of st is defined as:
st = (EncState*)speex_alloc(sizeof(EncState)+8000*sizeof(float));
Reference: nb_encode_init function.
Specifically, I would like to know why 8000 floats are allocated?
Thanks and regards,
Vinay
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2006 Apr 08
2
speex cvs: 'EncState' has no member named 'frame'
Trying to build today's svn on fc5, gcc-4.1.0,amd64:
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I../include -I../include
-I.. -I/usr/include -O2 -fPIC -funswitch-loops
-ftree-loop-linear -march=k8 -ftree-vectorize -pipe
-mfpmath=sse -frename-registers -O3 -msse -MT nb_celp.lo -MD
-MP -MF .deps/nb_celp.Tpo -c nb_celp.c -fPIC -DPIC -o
.libs/nb_celp.o
nb_celp.c: In function 'nb_encode':
2007 Apr 11
0
Problem with speex
Hello!
I am downloaded last version of speex library and did compile DLL.
But I am have not good sound : Please see my code (Delphi) and say me
please WHat I am do not right.
Or please send me correct compiled DLL and example of correct using
SPEEX_MODEID_WB and SPEEX_MODEID_UWB , denoise, and other effects.
How I can set MONO mode in decode?
My Code:
smpRt:=32000;
n:=10;
encbits:
2007 Aug 29
2
high-pass filter issues
Hi, I am using 1.2beta2 on a C5416 doing narrowband
in the decode function I am having a problem with the execution of my
program vectoring off to random interrupts that are not used. I have
tracked down the error to the highpass function called in nb_decode
-very close to the end of the function-context:
it is called here: ln 1719 for me
if (st->highpass_enabled)
highpass(out,
2005 May 24
2
Speex on TI C6x, Problem with TI C5x Patch
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2005 May 25
3
Speex on TI C6x, Problem with TI C5x Patch
>> There is a bit of work remaining to get the memory usage down for a
>> multichannel application. There have been some good posts over the
>> last couple of months about reducing memory usage.
>
> I think 1.1.8 incorporates all memory reductions proposed. Let me know
> otherwise.
For the persistent storage, the only change that I have made is to
MAX_CHARS_PER_FRAME,
2007 Sep 13
2
innov_save, what is it? why does it hurt me so?
hi,
I am using speex1.2beta2 on a TI 54x on narrow band
I have been trying to get speex to work for a while now, and it's been
a real teeter-totter ride. For a long time I noticed that I will get a
project to work and then without changing any code and programming it to
an eprom/flash the project will not work. It turns out it was a value
called innov_save. I found this bugger by zero
2013 May 09
1
Moving from Speex to Opus (question 2)
Hello!
I was using Speex all the time, and I am now moving to Opus.
I had encapsulated the decoder a bit, I had the following cpp file:
#include "StdAfx.h"
#include "spxcodec.h"
#define MAX_FRAME_SIZE 2000
#define MAX_FRAME_BYTES 2000
CSpxCodec::CSpxCodec() : enh(1), rate(8000)
{
}
CSpxCodec::~CSpxCodec()
{
}
void CSpxCodec::Init()
{
speex_bits_init(&bits);
2005 Oct 17
3
Error Executing sampledec in VC++
hey guys, I just compiled an application similar to sampledec.c (for speex
1.1.10) and it was fine but when I executed it, the app exited without doing
anything. I'm using MS VC 6.0 and this was all I got - First-chance
exception in sampledec.exe : 0xC0000005: Access Violation. Has anyone
encountered this / does anyone know how to deal with it? by the way,
sampleenc executed perfectly...
When
2005 Oct 17
6
Error Executing sampledec in VC++
Hi Steve, thanks for the advice. I placed the appropriate functions outside
the while statement but I still get this error at the while loop:
First-chance exception at 0x004010fa in SPXDEC.exe: 0xC0000005: Access
violation reading location 0x0000000c.
Unhandled exception at 0x004010fa in SPXDEC.exe: 0xC0000005: Access
violation reading location 0x0000000c.
It looks like the same error. I've
2006 Nov 15
2
Quick survey for Speex 1.2
> Another issue is the memory allocations distributed so many places that
> it's hard to provide a single memory initial function interface.
>
> In a VoIP case on ARM, the total memory size for speex codec should be
> known at the inital stage since all the memories are allocated
> at the initial stage.
If you want everything in the same big block, all you need to do is
2004 Aug 06
1
Status of fixed point
Hello,
Can somebody tell me something about the status of the fixed point code at
this moment ? I did some tests today with the latest CVS version of speex,
but enabling -DFIXED_POINT results in distorted sound in my test
application.
Is the fixed point code supposed to work properly at this moment ?
Regards,
/Ico
--
:wq
^X^Cy^K^X^C^C^C
--- >8 ----
List archives:
2004 Nov 17
3
Jitter buffer
Jean-Marc Valin wrote:
>>Heh. I guess after playing with different jitter buffers long enough,
>>I've realized that there's always situations that you haven't properly
>>accounted for when designing one.
>>
>>
>
>For example? :-)
>
>
I have a bunch of examples listed on the wiki page where I had written
initial specifications:
2004 Aug 06
1
Sample rate inaccuracy
Hi all,
I'm having some problems with inaccurate sampling rates between sending
and receiving party. (Using a simple raw UDP protocol sending packets
from speex to speex)
Both PC's have their soundcard set to 8 khz, but the samplerate seems to
differ slightly between machines. The problem I have is that the sending
machine sometimes samples with a slightly lower rate than the player