diff options
Diffstat (limited to 'celt/pitch.c')
-rw-r--r-- | celt/pitch.c | 29 |
1 files changed, 11 insertions, 18 deletions
diff --git a/celt/pitch.c b/celt/pitch.c index 5b061d86..872582a4 100644 --- a/celt/pitch.c +++ b/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. */ @@ -256,7 +249,7 @@ celt_pitch_xcorr_c(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}; |