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109 lines
2.5 KiB
C
109 lines
2.5 KiB
C
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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/*
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* This file contains the implementation of functions
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* WebRtcSpl_MemSetW16()
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* WebRtcSpl_MemSetW32()
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* WebRtcSpl_MemCpyReversedOrder()
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* WebRtcSpl_CopyFromEndW16()
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* WebRtcSpl_ZerosArrayW16()
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* WebRtcSpl_ZerosArrayW32()
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* WebRtcSpl_OnesArrayW16()
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* WebRtcSpl_OnesArrayW32()
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*
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* The description header can be found in signal_processing_library.h
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*
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*/
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#include <string.h>
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#include "webrtc/common_audio/signal_processing/include/signal_processing_library.h"
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void WebRtcSpl_MemSetW16(int16_t *ptr, int16_t set_value, int length)
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{
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int j;
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int16_t *arrptr = ptr;
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for (j = length; j > 0; j--)
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{
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*arrptr++ = set_value;
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}
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}
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void WebRtcSpl_MemSetW32(int32_t *ptr, int32_t set_value, int length)
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{
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int j;
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int32_t *arrptr = ptr;
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for (j = length; j > 0; j--)
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{
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*arrptr++ = set_value;
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}
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}
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void WebRtcSpl_MemCpyReversedOrder(int16_t* dest, int16_t* source, int length)
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{
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int j;
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int16_t* destPtr = dest;
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int16_t* sourcePtr = source;
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for (j = 0; j < length; j++)
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{
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*destPtr-- = *sourcePtr++;
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}
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}
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int16_t WebRtcSpl_CopyFromEndW16(const int16_t *vector_in,
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int16_t length,
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int16_t samples,
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int16_t *vector_out)
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{
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// Copy the last <samples> of the input vector to vector_out
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WEBRTC_SPL_MEMCPY_W16(vector_out, &vector_in[length - samples], samples);
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return samples;
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}
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int16_t WebRtcSpl_ZerosArrayW16(int16_t *vector, int16_t length)
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{
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WebRtcSpl_MemSetW16(vector, 0, length);
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return length;
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}
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int16_t WebRtcSpl_ZerosArrayW32(int32_t *vector, int16_t length)
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{
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WebRtcSpl_MemSetW32(vector, 0, length);
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return length;
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}
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int16_t WebRtcSpl_OnesArrayW16(int16_t *vector, int16_t length)
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{
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int16_t i;
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int16_t *tmpvec = vector;
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for (i = 0; i < length; i++)
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{
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*tmpvec++ = 1;
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}
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return length;
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}
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int16_t WebRtcSpl_OnesArrayW32(int32_t *vector, int16_t length)
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{
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int16_t i;
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int32_t *tmpvec = vector;
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for (i = 0; i < length; i++)
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{
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*tmpvec++ = 1;
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}
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return length;
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}
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