1 files changed, 54 insertions, 0 deletions
diff --git a/webrtc/modules/video_processing/util/denoiser_filter.cc b/webrtc/modules/video_processing/util/denoiser_filter.cc
new file mode 100644
index 0000000000..fbc2435cb5
--- /dev/null
+++ b/webrtc/modules/video_processing/util/denoiser_filter.cc
@@ -0,0 +1,54 @@
+/*
+ *  Copyright (c) 2015 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/checks.h"
+#include "webrtc/modules/video_processing/util/denoiser_filter.h"
+#include "webrtc/modules/video_processing/util/denoiser_filter_c.h"
+#include "webrtc/modules/video_processing/util/denoiser_filter_neon.h"
+#include "webrtc/modules/video_processing/util/denoiser_filter_sse2.h"
+#include "webrtc/system_wrappers/include/cpu_features_wrapper.h"
+
+namespace webrtc {
+
+const int kMotionMagnitudeThreshold = 8 * 3;
+const int kSumDiffThreshold = 16 * 16 * 2;
+const int kSumDiffThresholdHigh = 600;
+
+rtc::scoped_ptr<DenoiserFilter> DenoiserFilter::Create(
+    bool runtime_cpu_detection) {
+  rtc::scoped_ptr<DenoiserFilter> filter;
+
+  if (runtime_cpu_detection) {
+// If we know the minimum architecture at compile time, avoid CPU detection.
+#if defined(WEBRTC_ARCH_X86_FAMILY)
+    // x86 CPU detection required.
+    if (WebRtc_GetCPUInfo(kSSE2)) {
+      filter.reset(new DenoiserFilterSSE2());
+    } else {
+      filter.reset(new DenoiserFilterC());
+    }
+#elif defined(WEBRTC_DETECT_NEON)
+    if (WebRtc_GetCPUFeaturesARM() & kCPUFeatureNEON) {
+      filter.reset(new DenoiserFilterNEON());
+    } else {
+      filter.reset(new DenoiserFilterC());
+    }
+#else
+    filter.reset(new DenoiserFilterC());
+#endif
+  } else {
+    filter.reset(new DenoiserFilterC());
+  }
+
+  RTC_DCHECK(filter.get() != nullptr);
+  return filter;
+}
+
+}  // namespace webrtc