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Diffstat (limited to 'libs/libopus/celt/pitch.c')
-rw-r--r--libs/libopus/celt/pitch.c46
1 files changed, 13 insertions, 33 deletions
diff --git a/libs/libopus/celt/pitch.c b/libs/libopus/celt/pitch.c
index bf46e7d56..872582a48 100644
--- a/libs/libopus/celt/pitch.c
+++ b/libs/libopus/celt/pitch.c
@@ -102,11 +102,9 @@ static void find_best_pitch(opus_val32 *xcorr, opus_val16 *y, int len,
}
}
-static void celt_fir5(const opus_val16 *x,
+static void celt_fir5(opus_val16 *x,
const opus_val16 *num,
- opus_val16 *y,
- int N,
- opus_val16 *mem)
+ int N)
{
int i;
opus_val16 num0, num1, num2, num3, num4;
@@ -116,11 +114,11 @@ static void celt_fir5(const opus_val16 *x,
num2=num[2];
num3=num[3];
num4=num[4];
- mem0=mem[0];
- mem1=mem[1];
- mem2=mem[2];
- mem3=mem[3];
- mem4=mem[4];
+ mem0=0;
+ mem1=0;
+ mem2=0;
+ mem3=0;
+ mem4=0;
for (i=0;i<N;i++)
{
opus_val32 sum = SHL32(EXTEND32(x[i]), SIG_SHIFT);
@@ -134,13 +132,8 @@ static void celt_fir5(const opus_val16 *x,
mem2 = mem1;
mem1 = mem0;
mem0 = x[i];
- y[i] = ROUND16(sum, SIG_SHIFT);
+ x[i] = ROUND16(sum, SIG_SHIFT);
}
- mem[0]=mem0;
- mem[1]=mem1;
- mem[2]=mem2;
- mem[3]=mem3;
- mem[4]=mem4;
}
@@ -150,7 +143,7 @@ void pitch_downsample(celt_sig * OPUS_RESTRICT x[], opus_val16 * OPUS_RESTRICT x
int i;
opus_val32 ac[5];
opus_val16 tmp=Q15ONE;
- opus_val16 lpc[4], mem[5]={0,0,0,0,0};
+ opus_val16 lpc[4];
opus_val16 lpc2[5];
opus_val16 c1 = QCONST16(.8f,15);
#ifdef FIXED_POINT
@@ -211,7 +204,7 @@ void pitch_downsample(celt_sig * OPUS_RESTRICT x[], opus_val16 * OPUS_RESTRICT x
lpc2[2] = lpc[2] + MULT16_16_Q15(c1,lpc[1]);
lpc2[3] = lpc[3] + MULT16_16_Q15(c1,lpc[2]);
lpc2[4] = MULT16_16_Q15(c1,lpc[3]);
- celt_fir5(x_lp, lpc2, x_lp, len>>1, mem);
+ celt_fir5(x_lp, lpc2, len>>1);
}
/* Pure C implementation. */
@@ -220,13 +213,8 @@ opus_val32
#else
void
#endif
-#if defined(OVERRIDE_PITCH_XCORR)
celt_pitch_xcorr_c(const opus_val16 *_x, const opus_val16 *_y,
- opus_val32 *xcorr, int len, int max_pitch)
-#else
-celt_pitch_xcorr(const opus_val16 *_x, const opus_val16 *_y,
opus_val32 *xcorr, int len, int max_pitch, int arch)
-#endif
{
#if 0 /* This is a simple version of the pitch correlation that should work
@@ -261,15 +249,11 @@ celt_pitch_xcorr(const opus_val16 *_x, const opus_val16 *_y,
opus_val32 maxcorr=1;
#endif
celt_assert(max_pitch>0);
- celt_assert((((unsigned char *)_x-(unsigned char *)NULL)&3)==0);
+ celt_sig_assert((((unsigned char *)_x-(unsigned char *)NULL)&3)==0);
for (i=0;i<max_pitch-3;i+=4)
{
opus_val32 sum[4]={0,0,0,0};
-#if defined(OVERRIDE_PITCH_XCORR)
- xcorr_kernel_c(_x, _y+i, sum, len);
-#else
xcorr_kernel(_x, _y+i, sum, len, arch);
-#endif
xcorr[i]=sum[0];
xcorr[i+1]=sum[1];
xcorr[i+2]=sum[2];
@@ -285,11 +269,7 @@ celt_pitch_xcorr(const opus_val16 *_x, const opus_val16 *_y,
for (;i<max_pitch;i++)
{
opus_val32 sum;
-#if defined(OVERRIDE_PITCH_XCORR)
- sum = celt_inner_prod_c(_x, _y+i, len);
-#else
sum = celt_inner_prod(_x, _y+i, len, arch);
-#endif
xcorr[i] = sum;
#ifdef FIXED_POINT
maxcorr = MAX32(maxcorr, sum);
@@ -378,7 +358,7 @@ void pitch_search(const opus_val16 * OPUS_RESTRICT x_lp, opus_val16 * OPUS_RESTR
for (j=0;j<len>>1;j++)
sum += SHR32(MULT16_16(x_lp[j],y[i+j]), shift);
#else
- sum = celt_inner_prod_c(x_lp, y+i, len>>1);
+ sum = celt_inner_prod(x_lp, y+i, len>>1, arch);
#endif
xcorr[i] = MAX32(-1, sum);
#ifdef FIXED_POINT
@@ -424,7 +404,7 @@ static opus_val16 compute_pitch_gain(opus_val32 xy, opus_val32 xx, opus_val32 yy
sx = celt_ilog2(xx)-14;
sy = celt_ilog2(yy)-14;
shift = sx + sy;
- x2y2 = MULT16_16_Q14(VSHR32(xx, sx), VSHR32(yy, sy));
+ x2y2 = SHR32(MULT16_16(VSHR32(xx, sx), VSHR32(yy, sy)), 14);
if (shift & 1) {
if (x2y2 < 32768)
{