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  /external/speex/libspeex/
kiss_fftr.h 21 kiss_fftr_cfg kiss_fftr_alloc(int nfft,int inverse_fft,void * mem, size_t * lenmem);
23 nfft must be even
31 input timedata has nfft scalar points
32 output freqdata has nfft/2+1 complex points
42 input freqdata has nfft/2+1 complex points
43 output timedata has nfft scalar points
kiss_fftr.c 32 kiss_fftr_cfg kiss_fftr_alloc(int nfft,int inverse_fft,void * mem,size_t * lenmem)
38 if (nfft & 1) {
42 nfft >>= 1;
44 kiss_fft_alloc (nfft, inverse_fft, NULL, &subsize);
45 memneeded = sizeof(struct kiss_fftr_state) + subsize + sizeof(kiss_fft_cpx) * ( nfft * 2);
59 st->super_twiddles = st->tmpbuf + nfft;
60 kiss_fft_alloc(nfft, inverse_fft, st->substate, &subsize);
63 for (i=0;i<nfft;++i) {
64 spx_word32_t phase = i+(nfft>>1);
67 kf_cexp2(st->super_twiddles+i, DIV32(SHL32(phase,16),nfft));
    [all...]
kiss_fft.c 290 int Norig = st->nfft;
464 kiss_fft_cfg kiss_fft_alloc(int nfft,int inverse_fft,void * mem,size_t * lenmem )
468 + sizeof(kiss_fft_cpx)*(nfft-1); /* twiddle factors*/
479 st->nfft=nfft;
482 for (i=0;i<nfft;++i) {
486 kf_cexp2(st->twiddles+i, DIV32(SHL32(phase,17),nfft));
489 for (i=0;i<nfft;++i) {
491 double phase = ( -2*pi /nfft ) * i;
497 kf_factor(nfft,st->factors)
    [all...]
kiss_fft.h 74 kiss_fft_cfg kiss_fft_alloc(int nfft,int inverse_fft,void * mem,size_t * lenmem);
81 * fin should be f[0] , f[1] , ... ,f[nfft-1]
82 * fout will be F[0] , F[1] , ... ,F[nfft-1]
_kiss_fft_guts.h 32 int nfft; member in struct:kiss_fft_state
  /external/llvm/test/CodeGen/SystemZ/
2009-07-10-BadIncomingArgOffset.ll 11 define void @mp_mul_radix_test_bb3(i32 %radix, i32 %nfft, double* %tmpfft, i32* %ip, double* %w, double* %arrayidx44.reload, double* %call.out) nounwind {
22 tail call void @rdft(i32 signext %nfft, i32 signext -1, double* %arrayidx44.reload, i32* %ip, double* %w) nounwind
23 %call = tail call double @mp_mul_d2i_test(i32 signext %radix, i32 signext %nfft, double* %tmpfft) ; <double> [#uses=1]
  /frameworks/base/media/jni/audioeffect/
android_media_Visualizer.cpp 437 jbyte* nFft = (jbyte *) env->GetPrimitiveArrayCritical(jFft, NULL);
438 if (nFft == NULL) {
441 jint status = translateError(lpVisualizer->getFft((uint8_t *)nFft));
443 env->ReleasePrimitiveArrayCritical(jFft, nFft, 0);
  /external/llvm/test/CodeGen/X86/
2007-11-30-LoadFolding-Bug.ll 7 define fastcc void @mp_sqrt(i32 %n, i32 %radix, i32* %in, i32* %out, i32* %tmp1, i32* %tmp2, i32 %nfft, double* %tmp1fft, double* %tmp2fft, i32* %ip, double* %w) nounwind {

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