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/*
* 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.
*/
/*
* This file contains the function WebRtcSpl_GetSizeInBits().
* The description header can be found in signal_processing_library.h
*
*/
#include "signal_processing_library.h"
#ifndef SPL_NO_DOUBLE_IMPLEMENTATIONS
WebRtc_Word16 WebRtcSpl_GetSizeInBits(WebRtc_UWord32 value)
{
int bits = 0;
// Fast binary search to find the number of bits used
if ((0xFFFF0000 & value))
bits = 16;
if ((0x0000FF00 & (value >> bits)))
bits += 8;
if ((0x000000F0 & (value >> bits)))
bits += 4;
if ((0x0000000C & (value >> bits)))
bits += 2;
if ((0x00000002 & (value >> bits)))
bits += 1;
if ((0x00000001 & (value >> bits)))
bits += 1;
return bits;
}
#endif
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