Index: third_party/openmax_dl/dl/sp/src/test/test_float_rfft.c |
diff --git a/third_party/openmax_dl/dl/sp/src/test/test_float_rfft.c b/third_party/openmax_dl/dl/sp/src/test/test_float_rfft.c |
new file mode 100644 |
index 0000000000000000000000000000000000000000..cb3262f94f95cc3ea44a9c1463f2c7fb158bc248 |
--- /dev/null |
+++ b/third_party/openmax_dl/dl/sp/src/test/test_float_rfft.c |
@@ -0,0 +1,272 @@ |
+/* |
+ * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. |
+ * |
+ * Use of this source code is governed by a BSD-style license |
+ * that can be found in the LICENSE file in the root of the source |
+ * tree. An additional intellectual property rights grant can be found |
+ * in the file PATENTS. All contributing project authors may |
+ * be found in the AUTHORS file in the root of the source tree. |
+ */ |
+ |
+#include <math.h> |
+#include <stdio.h> |
+#include <stdlib.h> |
+#include <time.h> |
+#include <unistd.h> |
+ |
+#include "dl/sp/api/armSP.h" |
+#include "dl/sp/api/omxSP.h" |
+#include "dl/sp/src/test/aligned_ptr.h" |
+#include "dl/sp/src/test/compare.h" |
+#include "dl/sp/src/test/gensig.h" |
+#include "dl/sp/src/test/test_util.h" |
+ |
+#define MAX_FFT_ORDER TWIDDLE_TABLE_ORDER |
+ |
+/* |
+ * Verbosity of output. Higher values means more verbose output for |
+ * debugging. |
+ */ |
+int verbose; |
+ |
+void TestFloatFFT(int fft_log_size, int sigtype, float signal_value); |
+ |
+void main(int argc, char* argv[]) { |
+ struct Options options; |
+ |
+ SetDefaultOptions(&options, 1, MAX_FFT_ORDER); |
+ |
+ options.signal_value_ = 1024; |
+ |
+ ProcessCommandLine(&options, argc, argv, |
+ "Test forward and inverse real floating-point FFT\n"); |
+ |
+ verbose = options.verbose_; |
+ |
+ if (verbose > 255) |
+ DumpOptions(stderr, &options); |
+ |
+ if (options.test_mode_) { |
+ struct TestInfo info; |
+ |
+ info.real_only_ = options.real_only_; |
+ info.min_fft_order_ = options.min_fft_order_; |
+ info.max_fft_order_ = options.max_fft_order_; |
+ info.do_forward_tests_ = options.do_forward_tests_; |
+ info.do_inverse_tests_ = options.do_inverse_tests_; |
+ /* No known failures */ |
+ info.known_failures_ = 0; |
+#ifdef BIG_FFT_TABLE |
+ info.forward_threshold_ = 136.07; |
+ info.inverse_threshold_ = 140.76; |
+#else |
+ info.forward_threshold_ = 136.07; |
+ info.inverse_threshold_ = 142.41; |
+#endif |
+ RunAllTests(&info); |
+ } else { |
+ TestFloatFFT(options.fft_log_size_, |
+ options.signal_type_, |
+ options.signal_value_); |
+ } |
+} |
+ |
+/* Briefly print out the contents of the FFT spec */ |
+void DumpFFTSpec(OMXFFTSpec_R_F32* pSpec) { |
+ ARMsFFTSpec_R_FC32* p = (ARMsFFTSpec_R_FC32*) pSpec; |
+ printf(" N = %d\n", p->N); |
+ printf(" pBitRev = %p\n", p->pBitRev); |
+ printf(" pTwiddle = %p\n", p->pTwiddle); |
+ printf(" pBuf = %p\n", p->pBuf); |
+} |
+ |
+/* |
+ * Generate a signal and the corresponding theoretical FFT |
+ */ |
+void GenerateSignal(OMX_F32* x, OMX_FC32* fft, int size, int signal_type, |
+ float signal_value) { |
+ int k; |
+ struct ComplexFloat *test_signal; |
+ struct ComplexFloat *true_fft; |
+ |
+ test_signal = (struct ComplexFloat*) malloc(sizeof(*test_signal) * size); |
+ true_fft = (struct ComplexFloat*) malloc(sizeof(*true_fft) * size); |
+ GenerateTestSignalAndFFT(test_signal, true_fft, size, signal_type, |
+ signal_value, 1); |
+ |
+ /* |
+ * Convert the complex result to what we want |
+ */ |
+ |
+ for (k = 0; k < size; ++k) { |
+ x[k] = test_signal[k].Re; |
+ } |
+ |
+ for (k = 0; k < size / 2 + 1; ++k) { |
+ fft[k].Re = true_fft[k].Re; |
+ fft[k].Im = true_fft[k].Im; |
+ } |
+ |
+ free(test_signal); |
+ free(true_fft); |
+} |
+ |
+/* |
+ * Run one test of the forward and inverse FFT for the specified FFT |
+ * size, signal type and amplitude |
+ */ |
+void TestFloatFFT(int fft_log_size, int signal_type, float signal_value) { |
+ struct SnrResult snr; |
+ |
+ RunOneForwardTest(fft_log_size, signal_type, signal_value, &snr); |
+ printf("Forward float FFT\n"); |
+ printf("SNR: real part %f dB\n", snr.real_snr_); |
+ printf(" imag part %f dB\n", snr.imag_snr_); |
+ printf(" complex part %f dB\n", snr.complex_snr_); |
+ |
+ RunOneInverseTest(fft_log_size, signal_type, signal_value, &snr); |
+ printf("Inverse float FFT\n"); |
+ printf("SNR: %f dB\n", snr.real_snr_); |
+} |
+ |
+/* Run one forward FFT test in test mode */ |
+float RunOneForwardTest(int fft_log_size, int signal_type, float signal_value, |
+ struct SnrResult* snr) { |
+ OMX_F32* x; |
+ OMX_FC32* y; |
+ struct AlignedPtr* x_aligned; |
+ struct AlignedPtr* y_aligned; |
+ |
+ OMX_FC32* y_true; |
+ |
+ OMX_INT n; |
+ OMX_INT fft_spec_buffer_size; |
+ OMXResult status; |
+ OMXFFTSpec_R_F32 * fft_fwd_spec = NULL; |
+ int fft_size; |
+ |
+ fft_size = 1 << fft_log_size; |
+ |
+ status = omxSP_FFTGetBufSize_R_F32(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_R_F32*) malloc(fft_spec_buffer_size); |
+ status = omxSP_FFTInit_R_F32(fft_fwd_spec, fft_log_size); |
+ if (status) { |
+ fprintf(stderr, "Failed to init forward FFT: status = %d\n", status); |
+ exit(1); |
+ } |
+ |
+ x_aligned = AllocAlignedPointer(32, sizeof(*x) * fft_size); |
+ y_aligned = AllocAlignedPointer(32, sizeof(*y) * (fft_size + 2)); |
+ x = x_aligned->aligned_pointer_; |
+ y = y_aligned->aligned_pointer_; |
+ y_true = (OMX_FC32*) malloc(sizeof(*y_true) * (fft_size / 2 + 1)); |
+ |
+ GenerateSignal(x, y_true, fft_size, signal_type, signal_value); |
+ |
+ if (verbose > 63) { |
+ printf("Signal\n"); |
+ DumpArrayFloat("x", fft_size, x); |
+ |
+ printf("Expected FFT output\n"); |
+ DumpArrayComplexFloat("y", fft_size / 2, y_true); |
+ } |
+ |
+ status = omxSP_FFTFwd_RToCCS_F32_Sfs(x, (OMX_F32*) 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 / 2, y); |
+ } |
+ |
+ CompareComplexFloat(snr, y, y_true, fft_size / 2 + 1); |
+ |
+ FreeAlignedPointer(x_aligned); |
+ FreeAlignedPointer(y_aligned); |
+ free(y_true); |
+ free(fft_fwd_spec); |
+ |
+ return snr->complex_snr_; |
+} |
+ |
+/* Run one inverse FFT test in test mode */ |
+float RunOneInverseTest(int fft_log_size, int signal_type, float signal_value, |
+ struct SnrResult* snr) { |
+ OMX_F32* x; |
+ OMX_FC32* y; |
+ OMX_F32* z; |
+ struct AlignedPtr* x_aligned; |
+ struct AlignedPtr* y_aligned; |
+ struct AlignedPtr* z_aligned; |
+ |
+ OMX_FC32* yTrue; |
+ struct AlignedPtr* yTrueAligned; |
+ |
+ OMX_INT n; |
+ OMX_INT fft_spec_buffer_size; |
+ OMXResult status; |
+ OMXFFTSpec_R_F32 * fft_fwd_spec = NULL; |
+ OMXFFTSpec_R_F32 * fft_inv_spec = NULL; |
+ int fft_size; |
+ |
+ fft_size = 1 << fft_log_size; |
+ |
+ status = omxSP_FFTGetBufSize_R_F32(fft_log_size, &fft_spec_buffer_size); |
+ if (verbose > 3) { |
+ printf("fft_spec_buffer_size = %d\n", fft_spec_buffer_size); |
+ } |
+ |
+ fft_inv_spec = (OMXFFTSpec_R_F32*)malloc(fft_spec_buffer_size); |
+ status = omxSP_FFTInit_R_F32(fft_inv_spec, fft_log_size); |
+ if (status) { |
+ fprintf(stderr, "Failed to init backward FFT: status = %d\n", status); |
+ exit(1); |
+ } |
+ |
+ x_aligned = AllocAlignedPointer(32, sizeof(*x) * fft_size); |
+ y_aligned = AllocAlignedPointer(32, sizeof(*y) * (fft_size / 2 + 1)); |
+ z_aligned = AllocAlignedPointer(32, sizeof(*z) * fft_size); |
+ yTrueAligned = AllocAlignedPointer(32, sizeof(*y) * (fft_size / 2 + 1)); |
+ x = x_aligned->aligned_pointer_; |
+ y = y_aligned->aligned_pointer_; |
+ z = z_aligned->aligned_pointer_; |
+ yTrue = yTrueAligned->aligned_pointer_; |
+ |
+ GenerateSignal(x, yTrue, fft_size, signal_type, signal_value); |
+ |
+ if (verbose > 63) { |
+ printf("Inverse FFT Input Signal\n"); |
+ DumpArrayComplexFloat("y", fft_size / 2, yTrue); |
+ |
+ printf("Expected Inverse FFT output\n"); |
+ DumpArrayFloat("x", fft_size, x); |
+ } |
+ |
+ status = omxSP_FFTInv_CCSToR_F32_Sfs((OMX_F32 *) yTrue, z, fft_inv_spec); |
+ if (status) { |
+ fprintf(stderr, "Inverse FFT failed: status = %d\n", status); |
+ exit(1); |
+ } |
+ |
+ if (verbose > 63) { |
+ printf("Actual Inverse FFT Output\n"); |
+ DumpArrayFloat("z", fft_size, z); |
+ } |
+ |
+ CompareFloat(snr, z, x, fft_size); |
+ |
+ FreeAlignedPointer(x_aligned); |
+ FreeAlignedPointer(y_aligned); |
+ FreeAlignedPointer(z_aligned); |
+ FreeAlignedPointer(yTrueAligned); |
+ free(fft_inv_spec); |
+ |
+ return snr->real_snr_; |
+} |