webrtc/modules/audio_coding/neteq/random_vector.h
Niels Möller a12c42a6b2 Delete root header file typedef.h.
Usage replaced with stdint.h, rtc_base/system/arch.h and
rtc_base/system/unused.h, as appropriate.

Bug: webrtc:6854
Change-Id: I97225465d14b969903d92979e2df3c3c05d35f18
Reviewed-on: https://webrtc-review.googlesource.com/90249
Reviewed-by: Niklas Enbom <niklas.enbom@webrtc.org>
Reviewed-by: Fredrik Solenberg <solenberg@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24100}
2018-07-25 14:59:26 +00:00

47 lines
1.3 KiB
C++

/*
* 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>
#include "rtc_base/constructormagic.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) {}
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_;
RTC_DISALLOW_COPY_AND_ASSIGN(RandomVector);
};
} // namespace webrtc
#endif // MODULES_AUDIO_CODING_NETEQ_RANDOM_VECTOR_H_