OMXResult ForwardFFT(OMX_FC32* x, OMX_FC32* y, OMXFFTSpec_C_FC32 *fft_fwd_spec) { return omxSP_FFTFwd_CToC_FC32_Sfs(x, y, fft_fwd_spec); }
float RunOneForwardTest(int fft_log_size, int signal_type, float signal_value, struct SnrResult* snr) { OMX_FC32* x; OMX_FC32* y; struct AlignedPtr* x_aligned; struct AlignedPtr* y_aligned; OMX_FC32* y_true; OMX_INT n, fft_spec_buffer_size; OMXResult status; OMXFFTSpec_C_FC32 * fft_fwd_spec = NULL; int fft_size; fft_size = 1 << fft_log_size; status = omxSP_FFTGetBufSize_C_FC32(fft_log_size, &fft_spec_buffer_size); if (verbose > 63) { printf("fft_spec_buffer_size = %d\n", fft_spec_buffer_size); } fft_fwd_spec = (OMXFFTSpec_C_FC32*) malloc(fft_spec_buffer_size); status = omxSP_FFTInit_C_FC32(fft_fwd_spec, fft_log_size); if (status) { fprintf(stderr, "Failed to init forward FFT: status = %d, order %d \n", status, fft_log_size); exit(1); } x_aligned = AllocAlignedPointer(32, sizeof(*x) * fft_size); y_aligned = AllocAlignedPointer(32, sizeof(*y) * (fft_size + 2)); y_true = (OMX_FC32*) malloc(sizeof(*y_true) * fft_size); x = x_aligned->aligned_pointer_; y = y_aligned->aligned_pointer_; GenerateSignal(x, y_true, fft_size, signal_type, signal_value); if (verbose > 63) { printf("Signal\n"); DumpArrayComplexFloat("x", fft_size, x); printf("Expected FFT output\n"); DumpArrayComplexFloat("y", fft_size, y_true); } status = omxSP_FFTFwd_CToC_FC32_Sfs(x, y, fft_fwd_spec); if (status) { fprintf(stderr, "Forward FFT failed: status = %d\n", status); exit(1); } if (verbose > 63) { printf("FFT Output\n"); DumpArrayComplexFloat("y", fft_size, y); } CompareComplexFloat(snr, y, y_true, fft_size); FreeAlignedPointer(x_aligned); FreeAlignedPointer(y_aligned); free(fft_fwd_spec); return snr->complex_snr_; }