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92ea95e34a
In https://webrtc-review.googlesource.com/c/src/+/1560 we moved WebRTC from src/webrtc to src/ (in order to preserve an healthy git history). This CL takes care of fixing header guards, #include paths, etc... NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true TBR=tommi@webrtc.org Bug: chromium:611808 Change-Id: Iea91618212bee0af16aa3f05071eab8f93706578 Reviewed-on: https://webrtc-review.googlesource.com/1561 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Henrik Kjellander <kjellander@webrtc.org> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19846}
90 lines
2.9 KiB
C
90 lines
2.9 KiB
C
/*
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* Copyright (c) 2012 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 implementations of the iLBC specific functions
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* WebRtcSpl_ReverseOrderMultArrayElements()
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* WebRtcSpl_ElementwiseVectorMult()
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* WebRtcSpl_AddVectorsAndShift()
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* WebRtcSpl_AddAffineVectorToVector()
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* WebRtcSpl_AffineTransformVector()
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*
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*/
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#include "common_audio/signal_processing/include/signal_processing_library.h"
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void WebRtcSpl_ReverseOrderMultArrayElements(int16_t *out, const int16_t *in,
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const int16_t *win,
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size_t vector_length,
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int16_t right_shifts)
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{
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size_t i;
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int16_t *outptr = out;
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const int16_t *inptr = in;
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const int16_t *winptr = win;
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for (i = 0; i < vector_length; i++)
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{
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*outptr++ = (int16_t)((*inptr++ * *winptr--) >> right_shifts);
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}
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}
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void WebRtcSpl_ElementwiseVectorMult(int16_t *out, const int16_t *in,
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const int16_t *win, size_t vector_length,
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int16_t right_shifts)
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{
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size_t i;
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int16_t *outptr = out;
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const int16_t *inptr = in;
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const int16_t *winptr = win;
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for (i = 0; i < vector_length; i++)
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{
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*outptr++ = (int16_t)((*inptr++ * *winptr++) >> right_shifts);
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}
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}
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void WebRtcSpl_AddVectorsAndShift(int16_t *out, const int16_t *in1,
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const int16_t *in2, size_t vector_length,
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int16_t right_shifts)
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{
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size_t i;
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int16_t *outptr = out;
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const int16_t *in1ptr = in1;
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const int16_t *in2ptr = in2;
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for (i = vector_length; i > 0; i--)
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{
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(*outptr++) = (int16_t)(((*in1ptr++) + (*in2ptr++)) >> right_shifts);
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}
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}
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void WebRtcSpl_AddAffineVectorToVector(int16_t *out, int16_t *in,
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int16_t gain, int32_t add_constant,
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int16_t right_shifts,
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size_t vector_length)
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{
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size_t i;
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for (i = 0; i < vector_length; i++)
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{
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out[i] += (int16_t)((in[i] * gain + add_constant) >> right_shifts);
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}
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}
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void WebRtcSpl_AffineTransformVector(int16_t *out, int16_t *in,
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int16_t gain, int32_t add_constant,
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int16_t right_shifts, size_t vector_length)
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{
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size_t i;
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for (i = 0; i < vector_length; i++)
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{
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out[i] = (int16_t)((in[i] * gain + add_constant) >> right_shifts);
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}
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}
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