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C++ SHL32函数代码示例

本文整理汇总了C++中SHL32函数的典型用法代码示例。如果您正苦于以下问题：C++ SHL32函数的具体用法？C++ SHL32怎么用？C++ SHL32使用的例子？那么, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了SHL32函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: split_cb_shape_sign_unquant

void split_cb_shape_sign_unquant(
spx_sig_t *exc,
const void *par,                      /* non-overlapping codebook */
int   nsf,                      /* number of samples in subframe */
SpeexBits *bits,
char *stack,
spx_int32_t *seed
)
{
   int i,j;
   VARDECL(int *ind);
   VARDECL(int *signs);
   const signed char *shape_cb;
   //int shape_cb_size;
   int subvect_size, nb_subvect;
   const split_cb_params *params;
   int have_sign;

   params = (const split_cb_params *) par;
   subvect_size = params->subvect_size;
   nb_subvect = params->nb_subvect;
   //shape_cb_size = 1<<params->shape_bits;
   shape_cb = params->shape_cb;
   have_sign = params->have_sign;

   ALLOC(ind, nb_subvect, int);
   ALLOC(signs, nb_subvect, int);

   /* Decode codewords and gains */
   for (i=0;i<nb_subvect;i++)
   {
      if (have_sign)
         signs[i] = speex_bits_unpack_unsigned(bits, 1);
      else
         signs[i] = 0;
      ind[i] = speex_bits_unpack_unsigned(bits, params->shape_bits);
   }
   /* Compute decoded excitation */
   for (i=0;i<nb_subvect;i++)
   {
      spx_word16_t s=1;
      if (signs[i])
         s=-1;
#ifdef FIXED_POINT
      if (s==1)
      {
         for (j=0;j<subvect_size;j++)
            exc[subvect_size*i+j]=SHL32(EXTEND32(shape_cb[ind[i]*subvect_size+j]),SIG_SHIFT-5);
      } else {
         for (j=0;j<subvect_size;j++)
            exc[subvect_size*i+j]=NEG32(SHL32(EXTEND32(shape_cb[ind[i]*subvect_size+j]),SIG_SHIFT-5));
      }
#else
      for (j=0;j<subvect_size;j++)
         exc[subvect_size*i+j]+=s*0.03125*shape_cb[ind[i]*subvect_size+j];      
#endif
   }
}
开发者ID:0culus，项目名称:ioq3，代码行数:58，代码来源:cb_search.c

示例2: speex_echo_ctl

EXPORT int speex_echo_ctl(SpeexEchoState *st, int request, void *ptr)
{
   switch(request)
   {
      
      case SPEEX_ECHO_GET_FRAME_SIZE:
         (*(int*)ptr) = st->frame_size;
         break;
      case SPEEX_ECHO_SET_SAMPLING_RATE:
         st->sampling_rate = (*(int*)ptr);
         st->spec_average = DIV32_16(SHL32(EXTEND32(st->frame_size), 15), st->sampling_rate);
#ifdef FIXED_POINT
         st->beta0 = DIV32_16(SHL32(EXTEND32(st->frame_size), 16), st->sampling_rate);
         st->beta_max = DIV32_16(SHL32(EXTEND32(st->frame_size), 14), st->sampling_rate);
#else
         st->beta0 = (2.0f*st->frame_size)/st->sampling_rate;
         st->beta_max = (.5f*st->frame_size)/st->sampling_rate;
#endif
         if (st->sampling_rate<12000)
            st->notch_radius = QCONST16(.9, 15);
         else if (st->sampling_rate<24000)
            st->notch_radius = QCONST16(.982, 15);
         else
            st->notch_radius = QCONST16(.992, 15);
         break;
      case SPEEX_ECHO_GET_SAMPLING_RATE:
         (*(int*)ptr) = st->sampling_rate;
         break;
      case SPEEX_ECHO_GET_IMPULSE_RESPONSE_SIZE:
         /*FIXME: Implement this for multiple channels */
         *((spx_int32_t *)ptr) = st->M * st->frame_size;
         break;
      case SPEEX_ECHO_GET_IMPULSE_RESPONSE:
      {
         int M = st->M, N = st->window_size, n = st->frame_size, i, j;
         spx_int32_t *filt = (spx_int32_t *) ptr;
         for(j=0;j<M;j++)
         {
            /*FIXME: Implement this for multiple channels */
#ifdef FIXED_POINT
            for (i=0;i<N;i++)
               st->wtmp2[i] = EXTRACT16(PSHR32(st->W[j*N+i],16+NORMALIZE_SCALEDOWN));
            spx_ifft(st->fft_table, st->wtmp2, st->wtmp);
#else
            spx_ifft(st->fft_table, &st->W[j*N], st->wtmp);
#endif
            for(i=0;i<n;i++)
               filt[j*n+i] = PSHR32(MULT16_16(32767,st->wtmp[i]), WEIGHT_SHIFT-NORMALIZE_SCALEDOWN);
         }
      }
         break;
      default:
         speex_warning_int("Unknown speex_echo_ctl request: ", request);
         return -1;
   }
   return 0;
}
开发者ID:FreshLeaf8865，项目名称:mumble，代码行数:57，代码来源:mdf.c

示例3: kf_bfly2

static void kf_bfly2(
        kiss_fft_cpx * Fout,
        const size_t fstride,
        const kiss_fft_cfg st,
        int m,
        int N,
        int mm
        )
{
    kiss_fft_cpx * Fout2;
    kiss_fft_cpx * tw1;
    kiss_fft_cpx t;
    if (!st->inverse) {
       int i,j;
       kiss_fft_cpx * Fout_beg = Fout;
       for (i=0;i<N;i++)
       {
          Fout = Fout_beg + i*mm;
          Fout2 = Fout + m;
          tw1 = st->twiddles;
          for(j=0;j<m;j++)
          {
             /* Almost the same as the code path below, except that we divide the input by two
              (while keeping the best accuracy possible) */
             ms_word32_t tr, ti;
             tr = SHR32(SUB32(MULT16_16(Fout2->r , tw1->r),MULT16_16(Fout2->i , tw1->i)), 1);
             ti = SHR32(ADD32(MULT16_16(Fout2->i , tw1->r),MULT16_16(Fout2->r , tw1->i)), 1);
             tw1 += fstride;
             Fout2->r = PSHR32(SUB32(SHL32(EXTEND32(Fout->r), 14), tr), 15);
             Fout2->i = PSHR32(SUB32(SHL32(EXTEND32(Fout->i), 14), ti), 15);
             Fout->r = PSHR32(ADD32(SHL32(EXTEND32(Fout->r), 14), tr), 15);
             Fout->i = PSHR32(ADD32(SHL32(EXTEND32(Fout->i), 14), ti), 15);
             ++Fout2;
             ++Fout;
          }
       }
    } else {
       int i,j;
       kiss_fft_cpx * Fout_beg = Fout;
       for (i=0;i<N;i++)
       {
          Fout = Fout_beg + i*mm;
          Fout2 = Fout + m;
          tw1 = st->twiddles;
          for(j=0;j<m;j++)
          {
             C_MUL (t,  *Fout2 , *tw1);
             tw1 += fstride;
             C_SUB( *Fout2 ,  *Fout , t );
             C_ADDTO( *Fout ,  t );
             ++Fout2;
             ++Fout;
          }
       }
    }
}
开发者ID:Amini-Philips，项目名称:mediastreamer2，代码行数:56，代码来源:kiss_fft.c

示例4: bmw_small_f2

static
void bmw_small_f2(uint32_t* h, uint32_t* q, const void* m){
	uint32_t xl=0, xh;
	uint8_t i;
	for(i=16;i<24;++i){
		xl ^= q[i];
	}
	xh = xl;
	for(i=24;i<32;++i){
		xh ^= q[i];
	}
#if DEBUG
	cli_putstr("\r\n XL = ");
	cli_hexdump_rev(&xl, 4);
	cli_putstr("\r\n XH = ");
	cli_hexdump_rev(&xh, 4);
#endif
	memcpy(h, m, 16*4);
	h[0] ^= SHL32(xh, 5) ^ SHR32(q[16], 5);
	h[1] ^= SHR32(xh, 7) ^ SHL32(q[17], 8);
	h[2] ^= SHR32(xh, 5) ^ SHL32(q[18], 5);
	h[3] ^= SHR32(xh, 1) ^ SHL32(q[19], 5);
	h[4] ^= SHR32(xh, 3) ^ q[20];
	h[5] ^= SHL32(xh, 6) ^ SHR32(q[21], 6);
	h[6] ^= SHR32(xh, 4) ^ SHL32(q[22], 6);
	h[7] ^= SHR32(xh,11) ^ SHL32(q[23], 2);
	for(i=0; i<8; ++i){
		h[i] += xl ^ q[24+i] ^ q[i];
	}
	for(i=0; i<8; ++i){
		h[8+i] ^= xh ^ q[24+i];
		h[8+i] += ROTL32(h[(4+i)%8],i+9);
	}
/*
	h[ 8] += SHL32(xl, 8) ^ q[23] ^ q[ 8];
	h[ 9] += SHR32(xl, 6) ^ q[16] ^ q[ 9];
	h[10] += SHL32(xl, 6) ^ q[17] ^ q[10];
	h[11] += SHL32(xl, 4) ^ q[18] ^ q[11];
	h[12] += SHR32(xl, 3) ^ q[19] ^ q[12];
	h[13] += SHR32(xl, 4) ^ q[20] ^ q[13];
	h[14] += SHR32(xl, 7) ^ q[21] ^ q[14];
	h[15] += SHR32(xl, 2) ^ q[22] ^ q[15];
*/
	memxor(q+9, q+16, 7*4);
	q[8] ^= q[23];
	h[ 8] += SHL32(xl, 8) ^ q[ 8];
	h[ 9] += SHR32(xl, 6) ^ q[ 9];
	h[10] += SHL32(xl, 6) ^ q[10];
	h[11] += SHL32(xl, 4) ^ q[11];
	h[12] += SHR32(xl, 3) ^ q[12];
	h[13] += SHR32(xl, 4) ^ q[13];
	h[14] += SHR32(xl, 7) ^ q[14];
	h[15] += SHR32(xl, 2) ^ q[15];

}
开发者ID:nerilex，项目名称:arm-crypto-lib，代码行数:55，代码来源:bmw_small-asm-cstub.c

示例5: clt_mdct_init

void clt_mdct_init(mdct_lookup *l,int N)
{
   int i;
   int N2;
   l->n = N;
   N2 = N>>1;
   l->kfft = cpx32_fft_alloc(N>>2);
#ifndef ENABLE_TI_DSPLIB55
   if (l->kfft==NULL)
     return;
#endif
   l->trig = (kiss_twiddle_scalar*)celt_alloc(N2*sizeof(kiss_twiddle_scalar));
   if (l->trig==NULL)
     return;
   /* We have enough points that sine isn't necessary */
#if defined(FIXED_POINT)
#if defined(DOUBLE_PRECISION) & !defined(MIXED_PRECISION)
   for (i=0;i<N2;i++)
      l->trig[i] = SAMP_MAX*cos(2*M_PI*(i+1./8.)/N);
#else
   for (i=0;i<N2;i++)
      l->trig[i] = TRIG_UPSCALE*celt_cos_norm(DIV32(ADD32(SHL32(EXTEND32(i),17),16386),N));
#endif
#else
   for (i=0;i<N2;i++)
      l->trig[i] = cos(2*M_PI*(i+1./8.)/N);
#endif
}
开发者ID:EvolveLabs，项目名称:electron-celt，代码行数:28，代码来源:mdct.c

示例6: noise_codebook_quant

void noise_codebook_quant(
spx_word16_t target[],			/* target vector */
spx_coef_t ak[],			/* LPCs for this subframe */
spx_coef_t awk1[],			/* Weighted LPCs for this subframe */
spx_coef_t awk2[],			/* Weighted LPCs for this subframe */
const void *par,                      /* Codebook/search parameters*/
int   p,                        /* number of LPC coeffs */
int   nsf,                      /* number of samples in subframe */
spx_sig_t *exc,
spx_word16_t *r,
SpeexBits *bits,
char *stack,
int   complexity,
int   update_target
)
{
   int i;
   VARDECL(spx_word16_t *tmp);
   ALLOC(tmp, nsf, spx_word16_t);
   residue_percep_zero16(target, ak, awk1, awk2, tmp, nsf, p, stack);

   for (i=0;i<nsf;i++)
      exc[i]+=SHL32(EXTEND32(tmp[i]),8);
   SPEEX_MEMSET(target, 0, nsf);
}
开发者ID:TomDataworks，项目名称:whisper_client，代码行数:25，代码来源:cb_search.c

示例7: lsp_interpolate

void lsp_interpolate(spx_lsp_t *old_lsp, spx_lsp_t *new_lsp, spx_lsp_t *interp_lsp, int len, int subframe, int nb_subframes)
{
#ifndef FIXED_LPC_SIZE
   int i;
#endif

   spx_word16_t tmp = DIV32_16(SHL32(EXTEND32(1 + subframe),14),nb_subframes);
   spx_word16_t tmp2 = 16384-tmp;

#ifndef FIXED_LPC_SIZE
   for (i=0;i<len;i++)
   {
      interp_lsp[i] = MULT16_16_P14(tmp2,old_lsp[i]) + MULT16_16_P14(tmp,new_lsp[i]);
   }
#else
   interp_lsp[0] = MULT16_16_P14(tmp2,old_lsp[0]) + MULT16_16_P14(tmp,new_lsp[0]);
   interp_lsp[1] = MULT16_16_P14(tmp2,old_lsp[1]) + MULT16_16_P14(tmp,new_lsp[1]);
   interp_lsp[2] = MULT16_16_P14(tmp2,old_lsp[2]) + MULT16_16_P14(tmp,new_lsp[2]);
   interp_lsp[3] = MULT16_16_P14(tmp2,old_lsp[3]) + MULT16_16_P14(tmp,new_lsp[3]);
   interp_lsp[4] = MULT16_16_P14(tmp2,old_lsp[4]) + MULT16_16_P14(tmp,new_lsp[4]);
   interp_lsp[5] = MULT16_16_P14(tmp2,old_lsp[5]) + MULT16_16_P14(tmp,new_lsp[5]);
   interp_lsp[6] = MULT16_16_P14(tmp2,old_lsp[6]) + MULT16_16_P14(tmp,new_lsp[6]);
   interp_lsp[7] = MULT16_16_P14(tmp2,old_lsp[7]) + MULT16_16_P14(tmp,new_lsp[7]);
   interp_lsp[8] = MULT16_16_P14(tmp2,old_lsp[8]) + MULT16_16_P14(tmp,new_lsp[8]);
   interp_lsp[9] = MULT16_16_P14(tmp2,old_lsp[9]) + MULT16_16_P14(tmp,new_lsp[9]);
#endif
}
开发者ID:bahadir89，项目名称:freertos-networked-arm-cortex-m3，代码行数:27，代码来源:lsp.c

示例8: celt_fir5

static void celt_fir5(opus_val16 *x,
         const opus_val16 *num,
         int N)
{
   int i;
   opus_val16 num0, num1, num2, num3, num4;
   opus_val32 mem0, mem1, mem2, mem3, mem4;
   num0=num[0];
   num1=num[1];
   num2=num[2];
   num3=num[3];
   num4=num[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);
      sum = MAC16_16(sum,num0,mem0);
      sum = MAC16_16(sum,num1,mem1);
      sum = MAC16_16(sum,num2,mem2);
      sum = MAC16_16(sum,num3,mem3);
      sum = MAC16_16(sum,num4,mem4);
      mem4 = mem3;
      mem3 = mem2;
      mem2 = mem1;
      mem1 = mem0;
      mem0 = x[i];
      x[i] = ROUND16(sum, SIG_SHIFT);
   }
}
开发者ID:DrKLO，项目名称:Telegram，代码行数:33，代码来源:pitch.c

示例9: resampler_basic_interpolate_single

static int resampler_basic_interpolate_single(SpeexResamplerState *st, spx_uint32_t channel_index, const spx_word16_t *in, spx_uint32_t *in_len, spx_word16_t *out, spx_uint32_t *out_len)
{
   const int N = st->filt_len;
   int out_sample = 0;
   int last_sample = st->last_sample[channel_index];
   spx_uint32_t samp_frac_num = st->samp_frac_num[channel_index];
   const int out_stride = st->out_stride;
   const int int_advance = st->int_advance;
   const int frac_advance = st->frac_advance;
   const spx_uint32_t den_rate = st->den_rate;
   spx_word32_t sum;

   while (!(last_sample >= (spx_int32_t)*in_len || out_sample >= (spx_int32_t)*out_len))
   {
      const spx_word16_t *iptr = & in[last_sample];

      const int offset = samp_frac_num*st->oversample/st->den_rate;
#ifdef FIXED_POINT
      const spx_word16_t frac = PDIV32(SHL32((samp_frac_num*st->oversample) % st->den_rate,15),st->den_rate);
#else
      const spx_word16_t frac = ((float)((samp_frac_num*st->oversample) % st->den_rate))/st->den_rate;
#endif
      spx_word16_t interp[4];


#ifndef OVERRIDE_INTERPOLATE_PRODUCT_SINGLE
      int j;
      spx_word32_t accum[4] = {0,0,0,0};

      for(j=0;j<N;j++) {
        const spx_word16_t curr_in=iptr[j];
        accum[0] += MULT16_16(curr_in,st->sinc_table[4+(j+1)*st->oversample-offset-2]);
        accum[1] += MULT16_16(curr_in,st->sinc_table[4+(j+1)*st->oversample-offset-1]);
        accum[2] += MULT16_16(curr_in,st->sinc_table[4+(j+1)*st->oversample-offset]);
        accum[3] += MULT16_16(curr_in,st->sinc_table[4+(j+1)*st->oversample-offset+1]);
      }

      cubic_coef(frac, interp);
      sum = MULT16_32_Q15(interp[0],SHR32(accum[0], 1)) + MULT16_32_Q15(interp[1],SHR32(accum[1], 1)) + MULT16_32_Q15(interp[2],SHR32(accum[2], 1)) + MULT16_32_Q15(interp[3],SHR32(accum[3], 1));
      sum = SATURATE32PSHR(sum, 15, 32767);
#else
      cubic_coef(frac, interp);
      sum = interpolate_product_single(iptr, st->sinc_table + st->oversample + 4 - offset - 2, N, st->oversample, interp);
#endif

      out[out_stride * out_sample++] = sum;
      last_sample += int_advance;
      samp_frac_num += frac_advance;
      if (samp_frac_num >= den_rate)
      {
         samp_frac_num -= den_rate;
         last_sample++;
      }
   }

   st->last_sample[channel_index] = last_sample;
   st->samp_frac_num[channel_index] = samp_frac_num;
   return out_sample;
}
开发者ID:CharaD7，项目名称:wireshark，代码行数:59，代码来源:resample.c

示例10: lsp_interpolate

void lsp_interpolate(spx_lsp_t *old_lsp, spx_lsp_t *new_lsp, spx_lsp_t *interp_lsp, int len, int subframe, int nb_subframes)
{
   int i;
   spx_word16_t tmp = DIV32_16(SHL32(EXTEND32(1 + subframe),14),nb_subframes);
   spx_word16_t tmp2 = 16384-tmp;
   for (i=0;i<len;i++)
   {
      interp_lsp[i] = MULT16_16_P14(tmp2,old_lsp[i]) + MULT16_16_P14(tmp,new_lsp[i]);
   }
}
开发者ID:DastanIqbal，项目名称:pfhiaxdroid，代码行数:10，代码来源:lsp.c

示例11: celt_fir_c

void celt_fir_c(
         const opus_val16 *_x,
         const opus_val16 *num,
         opus_val16 *_y,
         int N,
         int ord,
         opus_val16 *mem,
         int arch)
{
   int i,j;
   VARDECL(opus_val16, rnum);
   VARDECL(opus_val16, x);
   SAVE_STACK;

   ALLOC(rnum, ord, opus_val16);
   ALLOC(x, N+ord, opus_val16);
   for(i=0;i<ord;i++)
      rnum[i] = num[ord-i-1];
   for(i=0;i<ord;i++)
      x[i] = mem[ord-i-1];
   for (i=0;i<N;i++)
      x[i+ord]=_x[i];
   for(i=0;i<ord;i++)
      mem[i] = _x[N-i-1];
#ifdef SMALL_FOOTPRINT
   (void)arch;
   for (i=0;i<N;i++)
   {
      opus_val32 sum = SHL32(EXTEND32(_x[i]), SIG_SHIFT);
      for (j=0;j<ord;j++)
      {
         sum = MAC16_16(sum,rnum[j],x[i+j]);
      }
      _y[i] = SATURATE16(PSHR32(sum, SIG_SHIFT));
   }
#else
   for (i=0;i<N-3;i+=4)
   {
      opus_val32 sum[4]={0,0,0,0};
      xcorr_kernel(rnum, x+i, sum, ord, arch);
      _y[i  ] = SATURATE16(ADD32(EXTEND32(_x[i  ]), PSHR32(sum[0], SIG_SHIFT)));
      _y[i+1] = SATURATE16(ADD32(EXTEND32(_x[i+1]), PSHR32(sum[1], SIG_SHIFT)));
      _y[i+2] = SATURATE16(ADD32(EXTEND32(_x[i+2]), PSHR32(sum[2], SIG_SHIFT)));
      _y[i+3] = SATURATE16(ADD32(EXTEND32(_x[i+3]), PSHR32(sum[3], SIG_SHIFT)));
   }
   for (;i<N;i++)
   {
      opus_val32 sum = 0;
      for (j=0;j<ord;j++)
         sum = MAC16_16(sum,rnum[j],x[i+j]);
      _y[i] = SATURATE16(ADD32(EXTEND32(_x[i]), PSHR32(sum, SIG_SHIFT)));
   }
#endif
   RESTORE_STACK;
}
开发者ID:03050903，项目名称:godot，代码行数:55，代码来源:celt_lpc.c

示例12: mlp_process

void mlp_process(const MLP * m, const opus_val16 * in, opus_val16 * out)
{
	int j;
	opus_val16 hidden[MAX_NEURONS];
	const opus_val16 *W = m->weights;
	/* Copy to tmp_in */
	for (j = 0; j < m->topo[1]; j++) {
		int k;
		opus_val32 sum = SHL32(EXTEND32(*W++), 8);
		for (k = 0; k < m->topo[0]; k++)
			sum = MAC16_16(sum, in[k], *W++);
		hidden[j] = tansig_approx(sum);
	}
	for (j = 0; j < m->topo[2]; j++) {
		int k;
		opus_val32 sum = SHL32(EXTEND32(*W++), 14);
		for (k = 0; k < m->topo[1]; k++)
			sum = MAC16_16(sum, hidden[k], *W++);
		out[j] = tansig_approx(EXTRACT16(PSHR32(sum, 17)));
	}
}
开发者ID:CEPBEP，项目名称:onion-phone，代码行数:21，代码来源:mlp.c

示例13: _celt_lpc

void _celt_lpc(
      opus_val16       *_lpc, /* out: [0...p-1] LPC coefficients      */
const opus_val32 *ac,  /* in:  [0...p] autocorrelation values  */
int          p
)
{
   int i, j;
   opus_val32 r;
   opus_val32 error = ac[0];
#ifdef OPUS_FIXED_POINT
   opus_val32 lpc[LPC_ORDER];
#else
   float *lpc = _lpc;
#endif

   for (i = 0; i < p; i++)
      lpc[i] = 0;
   if (ac[0] != 0)
   {
      for (i = 0; i < p; i++) {
         /* Sum up this iteration's reflection coefficient */
         opus_val32 rr = 0;
         for (j = 0; j < i; j++)
            rr += MULT32_32_Q31(lpc[j],ac[i - j]);
         rr += SHR32(ac[i + 1],3);
         r = -frac_div32(SHL32(rr,3), error);
         /*  Update LPC coefficients and total error */
         lpc[i] = SHR32(r,3);
         for (j = 0; j < (i+1)>>1; j++)
         {
            opus_val32 tmp1, tmp2;
            tmp1 = lpc[j];
            tmp2 = lpc[i-1-j];
            lpc[j]     = tmp1 + MULT32_32_Q31(r,tmp2);
            lpc[i-1-j] = tmp2 + MULT32_32_Q31(r,tmp1);
         }

         error = error - MULT32_32_Q31(MULT32_32_Q31(r,r),error);
         /* Bail out once we get 30 dB gain */
#ifdef OPUS_FIXED_POINT
         if (error<SHR32(ac[0],10))
            break;
#else
         if (error<.001f*ac[0])
            break;
#endif
      }
   }
#ifdef OPUS_FIXED_POINT
   for (i=0;i<p;i++)
      _lpc[i] = ROUND16(lpc[i],16);
#endif
}
开发者ID:03050903，项目名称:godot，代码行数:53，代码来源:celt_lpc.c

示例14: noise_codebook_unquant

void noise_codebook_unquant(
spx_sig_t *exc,
const void *par,                      /* non-overlapping codebook */
int   nsf,                      /* number of samples in subframe */
SpeexBits *bits,
char *stack,
spx_int32_t *seed
)
{
   int i;
   /* FIXME: This is bad, but I don't think the function ever gets called anyway */
   for (i=0;i<nsf;i++)
      exc[i]=SHL32(EXTEND32(speex_rand(1, seed)),SIG_SHIFT);
}
开发者ID:TomDataworks，项目名称:whisper_client，代码行数:14，代码来源:cb_search.c

示例15: filter_dc_notch16

static inline void filter_dc_notch16(const spx_int16_t *in, spx_word16_t radius, spx_word16_t *out, int len, spx_mem_t *mem, int stride)
{
   int i;
   spx_word16_t den2;
#ifdef FIXED_POINT
   den2 = MULT16_16_Q15(radius,radius) + MULT16_16_Q15(QCONST16(.7,15),MULT16_16_Q15(32767-radius,32767-radius));
#else
   den2 = radius*radius + .7*(1-radius)*(1-radius);
#endif   
   /*printf ("%d %d %d %d %d %d\n", num[0], num[1], num[2], den[0], den[1], den[2]);*/
   for (i=0;i<len;i++)
   {
      spx_word16_t vin = in[i*stride];
      spx_word32_t vout = mem[0] + SHL32(EXTEND32(vin),15);
#ifdef FIXED_POINT
      mem[0] = mem[1] + SHL32(SHL32(-EXTEND32(vin),15) + MULT16_32_Q15(radius,vout),1);
#else
      mem[0] = mem[1] + 2*(-vin + radius*vout);
#endif
      mem[1] = SHL32(EXTEND32(vin),15) - MULT16_32_Q15(den2,vout);
      out[i] = SATURATE32(PSHR32(MULT16_32_Q15(radius,vout),15),32767);
   }
}
开发者ID:FreshLeaf8865，项目名称:mumble，代码行数:23，代码来源:mdf.c


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