Bitexactness test for the noise suppressor

webrtc/modules/audio_processing/test/bitexactness_tools.h

+/*
+ *  Copyright (c) 2016 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.
+ */
+
+#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_TEST_BITEXACTNESS_TOOLS_H_
+#define WEBRTC_MODULES_AUDIO_PROCESSING_TEST_BITEXACTNESS_TOOLS_H_
+
+#include <string>
+
+#include "webrtc/base/array_view.h"
+#include "webrtc/modules/audio_coding/neteq/tools/input_audio_file.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace webrtc {
+namespace test {
+
+// Returns test vector to use for the render signal in an
+// APM bitexactness test.
+std::string GetApmRenderTestVectorFileName(int sample_rate_hz);
+
+// Returns test vector to use for the capture signal in an
+// APM bitexactness test.
+std::string GetApmCaptureTestVectorFileName(int sample_rate_hz);
+
+// Extract float samples from a pcm file.
+void ReadFloatSamplesFromStereoFile(size_t samples_per_channel,
+                                    size_t num_channels,
+                                    InputAudioFile* stereo_pcm_file,
+                                    rtc::ArrayView<float> data);
+
+// Verifies a frame against a reference and returns the results as an
+// AssertionResult.
+::testing::AssertionResult BitExactFrame(size_t samples_per_channel,
+                                         size_t num_channels,
+                                         rtc::ArrayView<const float> reference,
+                                         rtc::ArrayView<const float> output,
+                                         float tolerance);
+
+// Verifies a vector against a reference and returns the results as an
+// AssertionResult.
+::testing::AssertionResult BitExactVector(rtc::ArrayView<const float> reference,
+                                          rtc::ArrayView<const float> output,
+                                          float tolerance);
+
+}  // namespace test
+}  // namespace webrtc
+
+#endif  // WEBRTC_MODULES_AUDIO_PROCESSING_TEST_BITEXACTNESS_TOOLS_H_