search for: word2int

Hello, some misc. cleanup patches for speexdsp, nothing big I'm not sure about how to submit patches, so this is a test balloon :) ultimately, I'd like to fix the FIXED_POINT issue, see http://lists.xiph.org/pipermail/speex-dev/2013-December/008465.html currently, I think the only way to find out how speexdsp has been compiled is to resample some bytes and observe the output; which is

...B a/libspeex/resample.c b/libspeex/resample.c --- a/libspeex/resample.c 2013-12-20 17:40:27.326576921 +0500 +++ b/libspeex/resample.c 2013-12-20 17:40:16.918577087 +0500 @@ -915,7 +915,7 @@ if (in) { for(j=0;j<ichunk;++j) #ifdef FIXED_POINT - x[j+st->filt_len-1]=WORD2INT(in[j*istride_save]); + x[j+st->filt_len-1]=WORD2INT(32768.*in[j*istride_save]); #else x[j+st->filt_len-1]=in[j*istride_save]; #endif -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/speex-dev/attachments/20131...

...----- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/libspeexdsp/resample.c b/libspeexdsp/resample.c index e32ca45..a19b997 100644 --- a/libspeexdsp/resample.c +++ b/libspeexdsp/resample.c @@ -85,7 +85,7 @@ static void speex_free (void *ptr) {free(ptr);} #ifdef FIXED_POINT #define WORD2INT(x) ((x) < -32767 ? -32768 : ((x) > 32766 ? 32767 : (x))) #else -#define WORD2INT(x) ((x) < -32767.5f ? -32768 : ((x) > 32766.5f ? 32767 : floor(.5+(x)))) +#define WORD2INT(x) ((x) < -32767.5f ? -32768 : ((x) > 32766.5f ? 32767 : floorf(.5+(x)))) #endif #def...

...7 deletions(-) > > diff --git a/libspeexdsp/resample.c b/libspeexdsp/resample.c > index e32ca45..a19b997 100644 > --- a/libspeexdsp/resample.c > +++ b/libspeexdsp/resample.c > @@ -85,7 +85,7 @@ static void speex_free (void *ptr) {free(ptr);} > #ifdef FIXED_POINT > #define WORD2INT(x) ((x) < -32767 ? -32768 : ((x) > 32766 ? 32767 : (x))) > #else > -#define WORD2INT(x) ((x) < -32767.5f ? -32768 : ((x) > 32766.5f ? 32767 : > floor(.5+(x)))) > +#define WORD2INT(x) ((x) < -32767.5f ? -32768 : ((x) > 32766.5f ? 32767 : > floorf(.5+(x)))) > #en...

From: Jyri Sarha <jsarha at ti.com> Also adds inline asm implementations of WORD2INT(x) macro for fixed and floating point. --- libspeex/resample_neon.h | 101 ++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 101 insertions(+), 0 deletions(-) diff --git a/libspeex/resample_neon.h b/libspeex/resample_neon.h index ba93e41..e7e981e 100644 --- a/libspeex/resample_neon...

...define M_PI 3.14159265358979323846 +#define M_PI 3.14159265358979323846f #endif #define IMAX(a,b) ((a) > (b) ? (a) : (b)) @@ -1000,7 +1000,8 @@ EXPORT int speex_resampler_process_int(S if (in) { for(j=0;j<ichunk;++j) #ifdef FIXED_POINT - x[j+st->filt_len-1]=WORD2INT(in[j*istride_save]); + /* [-1.0, 1.0] ==> [-32768, 32767] */ + x[j+st->filt_len-1]=WORD2INT(32768 * in[j*istride_save]); #else x[j+st->filt_len-1]=in[j*istride_save]; #endif @@ -1017,7 +1018,8 @@ EXPORT int speex_resampler_process_int(S for (j=0;j&...

From: Jyri Sarha <jsarha at ti.com> I optimized Speex resampler for NEON capable ARM CPUs. The first patch should speed up resampling on any platform that can spare the increased memory usage. It would be nice to have these merged to the master branch. Please let me know if there is anything I can do to help the the merge. The patches have been rebased on top of master branch in

...=============================== --- libspeex/resample.c (revision 14829) +++ libspeex/resample.c (working copy) @@ -74,6 +74,7 @@ #include "os_support.h" #endif /* OUTSIDE_SPEEX */ +#include "stack_alloc.h" #include <math.h> #ifndef M_PI @@ -86,10 +87,6 @@ #define WORD2INT(x) ((x) < -32767.5f ? -32768 : ((x) > 32766.5f ? 32767 : floor(.5+(x)))) #endif -/*#define float double*/ -#define FILTER_SIZE 64 -#define OVERSAMPLE 8 - #define IMAX(a,b) ((a) > (b) ? (a) : (b)) #define IMIN(a,b) ((a) < (b) ? (a) : (b)) @@ -97,6 +94,17 @@ #defi...

...=============================== --- libspeex/resample.c (revision 14829) +++ libspeex/resample.c (working copy) @@ -74,6 +74,7 @@ #include "os_support.h" #endif /* OUTSIDE_SPEEX */ +#include "stack_alloc.h" #include <math.h> #ifndef M_PI @@ -86,10 +87,6 @@ #define WORD2INT(x) ((x) < -32767.5f ? -32768 : ((x) > 32766.5f ? 32767 : floor(.5+(x)))) #endif -/*#define float double*/ -#define FILTER_SIZE 64 -#define OVERSAMPLE 8 - #define IMAX(a,b) ((a) > (b) ? (a) : (b)) #define IMIN(a,b) ((a) < (b) ? (a) : (b)) @@ -97,6 +94,17 @@ #defi...

...hardware saturation available on >> Blackfin, or does it saturate by software? Can you point me to the >> place I have to look at inside the resampler function for >> saturation? > > Saturation is entirely done in software. The resampler does the > conversion using the WORD2INT macro. > > Jean-Marc > > > > _______________________________________________________________________ > Jetzt neu! Sch?tzen Sie Ihren PC mit McAfee und WEB.DE. 30 Tage > kostenlos testen. > http://www.pc-sicherheit.web.de/startseite/?mc=022220 > > > __...

...tion available on >>> Blackfin, or does it saturate by software? Can you point me to >>> the place I have to look at inside the resampler function for >>> saturation? >> Saturation is entirely done in software. The resampler does the >> conversion using the WORD2INT macro. >> >> Jean-Marc >> >> >> >> _______________________________________________________________________ >> Jetzt neu! Sch?tzen Sie Ihren PC mit McAfee und WEB.DE. 30 Tage >> kostenlos testen. >> http://www.pc-sicherheit.web.de/startsei...

...hardware saturation available on >> Blackfin, or does it saturate by software? Can you point me to the >> place I have to look at inside the resampler function for >> saturation? > > Saturation is entirely done in software. The resampler does the > conversion using the WORD2INT macro. > > Jean-Marc > > > > _______________________________________________________________________ > Jetzt neu! Sch?tzen Sie Ihren PC mit McAfee und WEB.DE. 30 Tage > kostenlos testen. > http://www.pc-sicherheit.web.de/startseite/?mc=022220 > > >

...t;>>> Blackfin, or does it saturate by software? Can you point me to >>>> the place I have to look at inside the resampler function for >>>> saturation? >>> Saturation is entirely done in software. The resampler does the >>> conversion using the WORD2INT macro. >>> >>> Jean-Marc >>> >>> >>> >>> _______________________________________________________________________ >>> Jetzt neu! Sch?tzen Sie Ihren PC mit McAfee und WEB.DE. 30 Tage >>> kostenlos testen. >>> http...

Hi Jean-Marc, didn't get a reply to my last post (see below) -- do you have no idea what happens here? After some more tests, I disabled the DIV32_16 Blackfin optimizations and now get good quality on the Blackfin. But when I have overdrive on the input, things become very bad -- I'm not sure if this is really a filter stability issue like I wrote some weeks ago. I use the speex

...lackfin, or does it saturate by software? Can you point me to >>>>> the place I have to look at inside the resampler function for >>>>> saturation? >>>> Saturation is entirely done in software. The resampler does the >>>> conversion using the WORD2INT macro. >>>> >>>> Jean-Marc >>>> >>>> >>>> >>>> _______________________________________________________________________ >>>> Jetzt neu! Sch?tzen Sie Ihren PC mit McAfee und WEB.DE. 30 Tage >>>> kostenlo...

...oes it saturate by software? Can you point >>>>>> me to the place I have to look at inside the resampler >>>>>> function for saturation? >>>>> Saturation is entirely done in software. The resampler does >>>>> the conversion using the WORD2INT macro. >>>>> >>>>> Jean-Marc >>>>> >>>>> >>>>> >>>>> _______________________________________________________________________ >>>>> Jetzt neu! Sch?tzen Sie Ihren PC mit McAfee und WEB.DE. 30...