Displaying 10 results from an estimated 10 matches for "nshift".
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2014 Jul 02
2
[PATCH] two patches of doubtful usefulness
1)
lpc.c, FLAC__lpc_quantize_coefficients():
This function declares "const int nshift = -(*shift)" variable
when *shift is less than 0. Then nshift is used in the loop:
for(i = 0; i < order; i++) {
error += lp_coeff[i] / (1 << nshift);
This patch adds "const int pshift = *shift" variable.
Pros:
* more symmetry for two branches
* compiler does...
2005 Nov 05
2
Noisy sound quality with Blackfin in WB-mode
Hello Jean-Marc,
> Got any luck with the Blackfin stuff? One thing I forgot mentioning that
> would probably help a lot in narrowing down the bug is to simply disable
> assembly functions one by one and see which one breaks Speex.
sorry that I didn't reply for some days. Unfortunately I had some other serious
problems with my software which are not related to Speex. I hope to solve
2005 Nov 12
2
Noisy sound quality with Blackfin in WB-mode
...================================================
--- lpc_bfin.h (r?vision 10333)
+++ lpc_bfin.h (copie de travail)
@@ -47,7 +47,7 @@
spx_word32_t ac0=1;
spx_word32_t ac32[11], *ac32top;
int shift, ac_shift;
- ac32top = ac32+10;
+ ac32top = ac32+lag-1;
int lag_1, N_lag;
int nshift;
lag_1 = lag-1;
Let me know if it works.
Jean-Marc
Le mercredi 09 novembre 2005 ? 14:02 +0100, Bernhard Gerlach a ?crit :
> Hello Jean-Marc,
>
> I disabled the Blackfin optimization functions one by one and found
> the error in libspeex/lpc_bfin.h in the autocorrelation compu...
2005 Nov 09
0
Noisy sound quality with Blackfin in WB-mode
...st regards,
Bernhard
Index: lpc_bfin.h
===================================================================
--- lpc_bfin.h
+++ lpc_bfin.h
@@ -109,23 +110,19 @@
: : "m" (xs), "m" (x), "m" (ac32top), "m" (N_lag), "m" (lag_1),
"m" (nshift)
: "A0", "A1", "P0", "P1", "P2", "P3", "P4", "R0", "R1", "R2",
"R3", "R4", "I0", "I1", "L0", "L1", "B0", "B1", &...
2017 Jan 13
0
[PATCH 1/4] Do not override CFLAGS, as CFLAGS is a user flag.
...RFLOW_DETECT || defined FLAC__OVERFLOW_DETECT_VERBOSE
+#if !defined(NDEBUG) || defined FLAC__OVERFLOW_DETECT || defined FLAC__OVERFLOW_DETECT_VERBOSE
#include <stdio.h>
#endif
@@ -234,7 +234,7 @@ int FLAC__lpc_quantize_coefficients(const FLAC__real lp_coeff[], unsigned order,
const int nshift = -(*shift);
double error = 0.0;
FLAC__int32 q;
-#ifdef DEBUG
+#ifndef NDEBUG
fprintf(stderr,"FLAC__lpc_quantize_coefficients: negative shift=%d order=%u cmax=%f\n", *shift, order, cmax);
#endif
for(i = 0; i < order; i++) {
diff --git a/src/libFLAC/stream_encoder.c b/src/l...
2017 Jan 15
0
[PATCH 1/2] Do not override CFLAGS, as CFLAGS is a user flag.
...RFLOW_DETECT || defined FLAC__OVERFLOW_DETECT_VERBOSE
+#if !defined(NDEBUG) || defined FLAC__OVERFLOW_DETECT || defined FLAC__OVERFLOW_DETECT_VERBOSE
#include <stdio.h>
#endif
@@ -234,7 +234,7 @@ int FLAC__lpc_quantize_coefficients(const FLAC__real lp_coeff[], uint32_t order,
const int nshift = -(*shift);
double error = 0.0;
FLAC__int32 q;
-#ifdef DEBUG
+#ifndef NDEBUG
fprintf(stderr,"FLAC__lpc_quantize_coefficients: negative shift=%d order=%u cmax=%f\n", *shift, order, cmax);
#endif
for(i = 0; i < order; i++) {
diff --git a/src/libFLAC/stream_encoder.c b/src/l...
2009 Apr 24
2
[PATCH] Blackfin: cleanup astat/cc/hardware loop asm clobbers
...x_word16_t *x, /* in: [0...n-1] samples x */
@@ -107,7 +109,8 @@ int n
"P0 += 4;\n\t"
"LOOP_END pitch%=;\n\t"
: : "m" (xs), "m" (x), "m" (ac32top), "m" (N_lag), "m" (lag_1), "m" (nshift)
- : "A0", "A1", "P0", "P1", "P2", "P3", "P4", "R0", "R1", "R2", "R3", "R4", "I0", "I1", "L0", "L1", "B0", "B1", &quo...
2017 Jan 15
4
Updated CFLAGS patches and make test compilation conditional
Hi Erik,
I've found a middleground for the problem of setting default CFLAGS. I've gone back
to setting them if {C,CXX,CPP,LD}FLAGS are unset at the onset of the configure script
(i.e., the user hasn't specified anything) and then proceed to set them to the defaults
as before. This has been suggested before:
https://lists.gnu.org/archive/html/autoconf/2006-04/msg00022.html
In
2017 Jan 13
9
Upstreaming Gentoo patches
Dear FLAC devs,
I would like to get some of our patches merged into master. Most
of them deal with adhering to GNU conventions, respectively not
overriding flags/variables that are up to the user to set. For instance,
honoring $(htmldir) is important, as we have installation paths for the
documentation that differ from what is currently coded in the various
Makefile.am's.
Regards
David
2012 Apr 07
1
[PATCH 2/2] Update and improve autotools build
...q>qmax %d>%d shift=%d cmax=%f precision=%u lpc[%u]=%f\n",q,qmax,*shift,cmax,precision+1,i,lp_coeff[i]);
@@ -234,14 +241,7 @@ int FLAC__lpc_quantize_coefficients(const FLAC__real lp_coeff[], unsigned order,
#endif
for(i = 0; i < order; i++) {
error += lp_coeff[i] / (1 << nshift);
-#if 1 /* unfortunately lround() is C99 */
- if(error >= 0.0)
- q = (FLAC__int32)(error + 0.5);
- else
- q = (FLAC__int32)(error - 0.5);
-#else
q = lround(error);
-#endif
#ifdef FLAC__OVERFLOW_DETECT
if(q > qmax+1) /* we expect q==qmax+1 occasionally due to rounding */...