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Searched refs:fft (Results 1 – 8 of 8) sorted by relevance

/external/srec/srec/cfront/
Dspec_anl.c83 channel->shift += place_sample_data(&freqobj->fft, channel->prebuff, in filterbank_emulation()
89 …write_scaled_frames(freqobj->fft.size, 1, freqobj->fft.real, D_FIXED, (float)(0x01 << channel->shi… in filterbank_emulation()
90 …write_scaled_frames(freqobj->fft.size, 1, freqobj->fft.imag, D_FIXED, (float)(0x01 << channel->shi… in filterbank_emulation()
94 …write_scaled_frames(freqobj->fft.size, 1, freqobj->fft.real, D_FIXED, (float)1 / (0x01 << -channel… in filterbank_emulation()
95 …write_scaled_frames(freqobj->fft.size, 1, freqobj->fft.imag, D_FIXED, (float)1 / (0x01 << -channel… in filterbank_emulation()
99 channel->shift += fft_perform_and_magsq(&freqobj->fft); in filterbank_emulation()
104 …write_scaled_frames(freqobj->fft.size, 1, freqobj->fft.real, D_FIXED, (float)(0x01 << (channel->sh… in filterbank_emulation()
106 …write_scaled_frames(freqobj->fft.size, 1, freqobj->fft.real, D_FIXED, (float)1 / (0x01 << (- chann… in filterbank_emulation()
112 …write_scaled_frames(freqobj->fft.size, 1, (void *)freqobj->fft.real, D_FIXED, (float)(0x01 << cha… in filterbank_emulation()
114 …write_scaled_frames(freqobj->fft.size, 1, (void *)freqobj->fft.real, D_FIXED, (float)1 / (0x01 << … in filterbank_emulation()
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Dsp_fft.c811 void configure_fft(fft_info *fft, int size) in configure_fft() argument
824 fft->size2 = size; in configure_fft()
825 fft->size = size / 2; in configure_fft()
827 fft->m_srfft = new_srfft(log2Length); in configure_fft()
828 fft->real = (fftdata*) CALLOC(size + 2, sizeof(fftdata), "srfft.fft_data"); in configure_fft()
829 fft->imag = fft->real + size / 2 + 1; in configure_fft()
832 int fft_perform_and_magsq(fft_info *fft) in fft_perform_and_magsq() argument
834 unsigned n = fft->size2; in fft_perform_and_magsq()
835 fftdata *real = fft->real; in fft_perform_and_magsq()
836 srfft *pSrfft = fft->m_srfft; in fft_perform_and_magsq()
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Dfrontobj.c405 configure_fft(&freqobj->fft, freqobj->np); in setup_freq_object()
516 unconfigure_fft(&freqobj->fft); in clear_freq_object()
/external/srec/srec/include/
Dfft.h36 int fft_perform_and_magsq(fft_info *fft);
37 void do_magsq(fft_info *fft);
39 void configure_fft(fft_info *fft, int size);
40 int place_sample_data(fft_info *fft, fftdata *seq, fftdata *smooth, int num);
41 void unconfigure_fft(fft_info *fft);
Dfront.h172 fft_info fft; member
/external/speex/libspeex/
Dfftwrap.c175 fftwf_plan fft; member
186 table->fft = fftwf_plan_dft_r2c_1d(size, table->in, (fftwf_complex *) table->out, FFTW_PATIENT); in spx_fft_init()
196 fftwf_destroy_plan(t->fft); in spx_fft_destroy()
215 fftwf_execute(t->fft); in spx_fft()
/external/opencore/codecs_v2/audio/aac/dec/src/
Dpvmp4audiodecoderframe.cpp942 pVars->scratch.fft); /* scratch memory for FFT */ in PVMP4AudioDecodeFrame()
1052 pVars->scratch.fft, in PVMP4AudioDecodeFrame()
1085 pVars->scratch.fft); in PVMP4AudioDecodeFrame()
1098 pVars->scratch.fft, in PVMP4AudioDecodeFrame()
Ds_tdec_int_file.h225 Int32 fft[LONG_WINDOW]; /* 1024, as needed by the FFT */ member