Adding upstream version 124.0.1.upstream/124.0.1

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

1 files changed, 46 insertions, 0 deletions

diff --git a/third_party/libwebrtc/modules/audio_coding/neteq/random_vector.h b/third_party/libwebrtc/modules/audio_coding/neteq/random_vector.h
new file mode 100644
index 0000000000..4a782f1116
--- /dev/null
+++ b/third_party/libwebrtc/modules/audio_coding/neteq/random_vector.h
@@ -0,0 +1,46 @@
+/*
+ *  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.
+ */
+
+#ifndef MODULES_AUDIO_CODING_NETEQ_RANDOM_VECTOR_H_
+#define MODULES_AUDIO_CODING_NETEQ_RANDOM_VECTOR_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+namespace webrtc {
+
+// This class generates pseudo-random samples.
+class RandomVector {
+ public:
+  static const size_t kRandomTableSize = 256;
+  static const int16_t kRandomTable[kRandomTableSize];
+
+  RandomVector() : seed_(777), seed_increment_(1) {}
+
+  RandomVector(const RandomVector&) = delete;
+  RandomVector& operator=(const RandomVector&) = delete;
+
+  void Reset();
+
+  void Generate(size_t length, int16_t* output);
+
+  void IncreaseSeedIncrement(int16_t increase_by);
+
+  // Accessors and mutators.
+  int16_t seed_increment() { return seed_increment_; }
+  void set_seed_increment(int16_t value) { seed_increment_ = value; }
+
+ private:
+  uint32_t seed_;
+  int16_t seed_increment_;
+};
+
+}  // namespace webrtc
+#endif  // MODULES_AUDIO_CODING_NETEQ_RANDOM_VECTOR_H_