Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 91 insertions, 0 deletions

diff --git a/third_party/libwebrtc/common_audio/vad/vad_filterbank_unittest.cc b/third_party/libwebrtc/common_audio/vad/vad_filterbank_unittest.cc
new file mode 100644
index 0000000000..51d8d0fefd
--- /dev/null
+++ b/third_party/libwebrtc/common_audio/vad/vad_filterbank_unittest.cc
@@ -0,0 +1,91 @@
+/*
+ *  Copyright (c) 2012 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 <stdlib.h>
+
+#include "common_audio/vad/vad_unittest.h"
+#include "test/gtest.h"
+
+extern "C" {
+#include "common_audio/vad/vad_core.h"
+#include "common_audio/vad/vad_filterbank.h"
+}
+
+namespace webrtc {
+namespace test {
+
+const int kNumValidFrameLengths = 3;
+
+TEST_F(VadTest, vad_filterbank) {
+  VadInstT* self = reinterpret_cast<VadInstT*>(malloc(sizeof(VadInstT)));
+  static const int16_t kReference[kNumValidFrameLengths] = {48, 11, 11};
+  static const int16_t kFeatures[kNumValidFrameLengths * kNumChannels] = {
+      1213, 759,  587,  462,  434,  272,  1479, 1385, 1291,
+      1200, 1103, 1099, 1732, 1692, 1681, 1629, 1436, 1436};
+  static const int16_t kOffsetVector[kNumChannels] = {368, 368, 272,
+                                                      176, 176, 176};
+  int16_t features[kNumChannels];
+
+  // Construct a speech signal that will trigger the VAD in all modes. It is
+  // known that (i * i) will wrap around, but that doesn't matter in this case.
+  int16_t speech[kMaxFrameLength];
+  for (size_t i = 0; i < kMaxFrameLength; ++i) {
+    speech[i] = static_cast<int16_t>(i * i);
+  }
+
+  int frame_length_index = 0;
+  ASSERT_EQ(0, WebRtcVad_InitCore(self));
+  for (size_t j = 0; j < kFrameLengthsSize; ++j) {
+    if (ValidRatesAndFrameLengths(8000, kFrameLengths[j])) {
+      EXPECT_EQ(kReference[frame_length_index],
+                WebRtcVad_CalculateFeatures(self, speech, kFrameLengths[j],
+                                            features));
+      for (int k = 0; k < kNumChannels; ++k) {
+        EXPECT_EQ(kFeatures[k + frame_length_index * kNumChannels],
+                  features[k]);
+      }
+      frame_length_index++;
+    }
+  }
+  EXPECT_EQ(kNumValidFrameLengths, frame_length_index);
+
+  // Verify that all zeros in gives kOffsetVector out.
+  memset(speech, 0, sizeof(speech));
+  ASSERT_EQ(0, WebRtcVad_InitCore(self));
+  for (size_t j = 0; j < kFrameLengthsSize; ++j) {
+    if (ValidRatesAndFrameLengths(8000, kFrameLengths[j])) {
+      EXPECT_EQ(0, WebRtcVad_CalculateFeatures(self, speech, kFrameLengths[j],
+                                               features));
+      for (int k = 0; k < kNumChannels; ++k) {
+        EXPECT_EQ(kOffsetVector[k], features[k]);
+      }
+    }
+  }
+
+  // Verify that all ones in gives kOffsetVector out. Any other constant input
+  // will have a small impact in the sub bands.
+  for (size_t i = 0; i < kMaxFrameLength; ++i) {
+    speech[i] = 1;
+  }
+  for (size_t j = 0; j < kFrameLengthsSize; ++j) {
+    if (ValidRatesAndFrameLengths(8000, kFrameLengths[j])) {
+      ASSERT_EQ(0, WebRtcVad_InitCore(self));
+      EXPECT_EQ(0, WebRtcVad_CalculateFeatures(self, speech, kFrameLengths[j],
+                                               features));
+      for (int k = 0; k < kNumChannels; ++k) {
+        EXPECT_EQ(kOffsetVector[k], features[k]);
+      }
+    }
+  }
+
+  free(self);
+}
+}  // namespace test
+}  // namespace webrtc