Remove all files except OWNERS.HEADandroid-t-preview-2android-t-preview-1android-t-beta-3android-s-v2-preview-2android-s-v2-preview-1android-s-v2-beta-3android-s-v2-beta-2android-s-qpr3-beta-1android-s-beta-5mastermainandroid-t-preview-1android-s-v2-preview-1android-s-v2-beta-3android-s-qpr3-beta-1android-s-beta-5

This repository will be removed from the manifest change, but Treehugger
seems unable to test the manifest change, so this change first removes
all files so we can test that instead.

Bug: 190503456
Test: m crosvm
Change-Id: I133ef3bd8b39035a68113c4da8fe4c637a40daac

1 files changed, 0 insertions, 81 deletions

diff --git a/cras/src/server/ewma_power.c b/cras/src/server/ewma_power.c
deleted file mode 100644
index 5270ef0e..00000000
--- a/cras/src/server/ewma_power.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/* Copyright 2020 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "ewma_power.h"
-#include "math.h"
-
-/* One sample per 1ms. */
-#define EWMA_SAMPLE_RATE 1000
-
-/* Smooth factor for EWMA, 1 - expf(-1.0/(rate * 0.01))
- * where the 0.01 corresponds to 10ms interval that is chosen and
- * being used in Chrome for a long time.
- * Here the |rate| is set to the down sampled EWMA_SAMPLE_RATE and
- * whenever it changes the calculated |smooth_factor| should be updated
- * accordingly.
- */
-const static float smooth_factor = 0.095;
-
-void ewma_power_disable(struct ewma_power *ewma)
-{
-	ewma->enabled = 0;
-}
-
-void ewma_power_init(struct ewma_power *ewma, unsigned int rate)
-{
-	ewma->enabled = 1;
-	ewma->power_set = 0;
-	ewma->step_fr = rate / EWMA_SAMPLE_RATE;
-}
-
-void ewma_power_calculate(struct ewma_power *ewma, const int16_t *buf,
-			  unsigned int channels, unsigned int size)
-{
-	int i, ch;
-	float power, f;
-
-	if (!ewma->enabled)
-		return;
-	for (i = 0; i < size; i += ewma->step_fr * channels) {
-		power = 0.0f;
-		for (ch = 0; ch < channels; ch++) {
-			f = buf[i + ch] / 32768.0f;
-			power += f * f / channels;
-		}
-		if (!ewma->power_set) {
-			ewma->power = power;
-			ewma->power_set = 1;
-		} else {
-			ewma->power = smooth_factor * power +
-				      (1 - smooth_factor) * ewma->power;
-		}
-	}
-}
-
-void ewma_power_calculate_area(struct ewma_power *ewma, const int16_t *buf,
-			       struct cras_audio_area *area, unsigned int size)
-{
-	int i, ch;
-	float power, f;
-
-	if (!ewma->enabled)
-		return;
-	for (i = 0; i < size; i += ewma->step_fr * area->num_channels) {
-		power = 0.0f;
-		for (ch = 0; ch < area->num_channels; ch++) {
-			if (area->channels[ch].ch_set == 0)
-				continue;
-			f = buf[i + ch] / 32768.0f;
-			power += f * f / area->num_channels;
-		}
-		if (!ewma->power_set) {
-			ewma->power = power;
-			ewma->power_set = 1;
-		} else {
-			ewma->power = smooth_factor * power +
-				      (1 - smooth_factor) * ewma->power;
-		}
-	}
-}