Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(1652)

Unified Diff: webrtc/base/numerics/exp_filter.cc

Issue 2877023002: Move webrtc/{base => rtc_base} (Closed)
Patch Set: update presubmit.py and DEPS include rules Created 3 years, 6 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « webrtc/base/numerics/exp_filter.h ('k') | webrtc/base/numerics/exp_filter_unittest.cc » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: webrtc/base/numerics/exp_filter.cc
diff --git a/webrtc/base/numerics/exp_filter.cc b/webrtc/base/numerics/exp_filter.cc
deleted file mode 100644
index a4754a64b386c2da7dc20f4a04821146c1b6a2c8..0000000000000000000000000000000000000000
--- a/webrtc/base/numerics/exp_filter.cc
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Copyright (c) 2011 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 "webrtc/base/numerics/exp_filter.h"
-
-#include <math.h>
-
-namespace rtc {
-
-const float ExpFilter::kValueUndefined = -1.0f;
-
-void ExpFilter::Reset(float alpha) {
- alpha_ = alpha;
- filtered_ = kValueUndefined;
-}
-
-float ExpFilter::Apply(float exp, float sample) {
- if (filtered_ == kValueUndefined) {
- // Initialize filtered value.
- filtered_ = sample;
- } else if (exp == 1.0) {
- filtered_ = alpha_ * filtered_ + (1 - alpha_) * sample;
- } else {
- float alpha = pow(alpha_, exp);
- filtered_ = alpha * filtered_ + (1 - alpha) * sample;
- }
- if (max_ != kValueUndefined && filtered_ > max_) {
- filtered_ = max_;
- }
- return filtered_;
-}
-
-void ExpFilter::UpdateBase(float alpha) {
- alpha_ = alpha;
-}
-} // namespace rtc
« no previous file with comments | « webrtc/base/numerics/exp_filter.h ('k') | webrtc/base/numerics/exp_filter_unittest.cc » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698