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In order to eliminate the WebRTC Subtree mirror in Chromium, WebRTC is moving the content of the src/webrtc directory up to the src/ directory. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true TBR=tommi@webrtc.org Bug: chromium:611808 Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38 Reviewed-on: https://webrtc-review.googlesource.com/1560 Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Henrik Kjellander <kjellander@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19845}
45 lines
1.6 KiB
C
45 lines
1.6 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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/*--------------------------------*-C-*---------------------------------*
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* File:
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* fftn.h
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* ---------------------------------------------------------------------*
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* Re[]: real value array
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* Im[]: imaginary value array
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* nTotal: total number of complex values
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* nPass: number of elements involved in this pass of transform
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* nSpan: nspan/nPass = number of bytes to increment pointer
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* in Re[] and Im[]
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* isign: exponent: +1 = forward -1 = reverse
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* scaling: normalizing constant by which the final result is *divided*
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* scaling == -1, normalize by total dimension of the transform
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* scaling < -1, normalize by the square-root of the total dimension
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*
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* ----------------------------------------------------------------------
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* See the comments in the code for correct usage!
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*/
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#ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_FFT_H_
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#define WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_FFT_H_
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#include "structs.h"
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/* double precision routine */
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int WebRtcIsac_Fftns (unsigned int ndim, const int dims[], double Re[], double Im[],
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int isign, double scaling, FFTstr *fftstate);
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#endif /* WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_MAIN_SOURCE_FFT_H_ */
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