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Update and improve autotools build

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- INCLUDES is deprecated, and CPPFLAGS is an user-defined
  variable, use the proper AM_CPPFLAGS instead

- Remove FLAC__INLINE definition, providing proper
  replacement for MSVC compilers.

- Detect if we have C99 's lround and provide a replacement
  for windows...
This commit is contained in:
Cristian Rodríguez
2012-04-07 19:24:21 -03:00
committed by Erik de Castro Lopo
parent 8340ab3bc8
commit 9b7cb22f84
30 changed files with 68 additions and 86 deletions
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28
src/libFLAC/lpc.c
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@@ -38,6 +38,7 @@
#include "FLAC/format.h"
#include "private/bitmath.h"
#include "private/lpc.h"
#include "private/macros.h"
#if defined DEBUG || defined FLAC__OVERFLOW_DETECT || defined FLAC__OVERFLOW_DETECT_VERBOSE
#include <stdio.h>
#endif
@@ -52,6 +53,18 @@
#define M_LN2 0.69314718055994530942
#endif
#if !defined(HAVE_LROUND)
#if defined(_MSC_VER)
#include <float.h>
#define copysign _copysign
#elif defined(__GNUC__)
#define copysign __builtin_copysign
#endif
static inline long int lround(double x) {
return (long)(x + copysign (0.5, x));
}
//If this fails, we are in the precence of a mid 90's compiler..move along...
#endif
void FLAC__lpc_window_data(const FLAC__int32 in[], const FLAC__real window[], FLAC__real out[], unsigned data_len)
{
@@ -199,14 +212,8 @@ int FLAC__lpc_quantize_coefficients(const FLAC__real lp_coeff[], unsigned order,
FLAC__int32 q;
for(i = 0; i < order; i++) {
error += lp_coeff[i] * (1 << *shift);
#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 */
fprintf(stderr,"FLAC__lpc_quantize_coefficients: quantizer overflow: 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 */
fprintf(stderr,"FLAC__lpc_quantize_coefficients: quantizer overflow: q>qmax %d>%d shift=%d cmax=%f precision=%u lpc[%u]=%f\n",q,qmax,*shift,cmax,precision+1,i,lp_coeff[i]);