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Fixed an old issue where the fixed-point MDCT twiddles were stored as 32-bit values

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This commit is contained in:
Jean-Marc Valin 2010-08-25 22:20:35 -04:00
parent bb5288174d
commit 0ff9be6aec
2 changed files with 5 additions and 5 deletions
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2
libcelt/kiss_fft.h
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@ -55,7 +55,7 @@ extern "C" {
#ifdef DOUBLE_PRECISION #ifdef DOUBLE_PRECISION
# define kiss_fft_scalar celt_int32 # define kiss_fft_scalar celt_int32
# define kiss_twiddle_scalar celt_int32 # define kiss_twiddle_scalar celt_int16
# define KF_SUFFIX _celt_double # define KF_SUFFIX _celt_double
#else #else
# define kiss_fft_scalar celt_int16 # define kiss_fft_scalar celt_int16

8
libcelt/mdct.c
View file

@ -162,7 +162,7 @@ void clt_mdct_forward(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scalar
/* Pre-rotation */ /* Pre-rotation */
{ {
kiss_fft_scalar * restrict yp = out; kiss_fft_scalar * restrict yp = out;
const kiss_fft_scalar *t = &l->trig[0]; const kiss_twiddle_scalar *t = &l->trig[0];
for(i=0;i<N4;i++) for(i=0;i<N4;i++)
{ {
kiss_fft_scalar re, im, yr, yi; kiss_fft_scalar re, im, yr, yi;
@ -185,7 +185,7 @@ void clt_mdct_forward(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scalar
const kiss_fft_scalar * restrict fp = f; const kiss_fft_scalar * restrict fp = f;
kiss_fft_scalar * restrict yp1 = out; kiss_fft_scalar * restrict yp1 = out;
kiss_fft_scalar * restrict yp2 = out+N2-1; kiss_fft_scalar * restrict yp2 = out+N2-1;
const kiss_fft_scalar *t = &l->trig[0]; const kiss_twiddle_scalar *t = &l->trig[0];
/* Temp pointers to make it really clear to the compiler what we're doing */ /* Temp pointers to make it really clear to the compiler what we're doing */
for(i=0;i<N4;i++) for(i=0;i<N4;i++)
{ {
@ -231,7 +231,7 @@ void clt_mdct_backward(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scala
const kiss_fft_scalar * restrict xp1 = in; const kiss_fft_scalar * restrict xp1 = in;
const kiss_fft_scalar * restrict xp2 = in+N2-1; const kiss_fft_scalar * restrict xp2 = in+N2-1;
kiss_fft_scalar * restrict yp = f2; kiss_fft_scalar * restrict yp = f2;
const kiss_fft_scalar *t = &l->trig[0]; const kiss_twiddle_scalar *t = &l->trig[0];
for(i=0;i<N4;i++) for(i=0;i<N4;i++)
{ {
kiss_fft_scalar yr, yi; kiss_fft_scalar yr, yi;
@ -251,7 +251,7 @@ void clt_mdct_backward(const mdct_lookup *l, kiss_fft_scalar *in, kiss_fft_scala
/* Post-rotate */ /* Post-rotate */
{ {
kiss_fft_scalar * restrict fp = f; kiss_fft_scalar * restrict fp = f;
const kiss_fft_scalar *t = &l->trig[0]; const kiss_twiddle_scalar *t = &l->trig[0];
for(i=0;i<N4;i++) for(i=0;i<N4;i++)
{ {