Eric Laurent | e48d584 | 2011-06-16 21:50:24 -0700 | [diff] [blame] | 1 | =============================================================================== |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. |
| 5 | * |
| 6 | * Use of this source code is governed by a BSD-style license |
| 7 | * that can be found in the LICENSE file in the root of the source |
| 8 | * tree. An additional intellectual property rights grant can be found |
| 9 | * in the file PATENTS. All contributing project authors may |
| 10 | * be found in the AUTHORS file in the root of the source tree. |
| 11 | */ |
| 12 | |
| 13 | =============================================================================== |
| 14 | |
| 15 | /* |
| 16 | * Copyright (C) 2010 The Android Open Source Project |
| 17 | * |
| 18 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 19 | * you may not use this file except in compliance with the License. |
| 20 | * You may obtain a copy of the License at |
| 21 | * |
| 22 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 23 | * |
| 24 | * Unless required by applicable law or agreed to in writing, software |
| 25 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 26 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 27 | * See the License for the specific language governing permissions and |
| 28 | * limitations under the License. |
| 29 | * |
| 30 | */ |
| 31 | |
| 32 | =============================================================================== |
| 33 | |
| 34 | /* |
| 35 | * http://www.kurims.kyoto-u.ac.jp/~ooura/fft.html |
| 36 | * Copyright Takuya OOURA, 1996-2001 |
| 37 | * |
| 38 | * You may use, copy, modify and distribute this code for any purpose (include |
| 39 | * commercial use) and without fee. Please refer to this package when you modify |
| 40 | * this code. |
| 41 | * |
| 42 | * Changes by the WebRTC authors: |
| 43 | * - Trivial type modifications. |
| 44 | * - Minimal code subset to do rdft of length 128. |
| 45 | * - Optimizations because of known length. |
| 46 | * |
| 47 | * All changes are covered by the WebRTC license and IP grant: |
| 48 | * Use of this source code is governed by a BSD-style license |
| 49 | * that can be found in the LICENSE file in the root of the source |
| 50 | * tree. An additional intellectual property rights grant can be found |
| 51 | * in the file PATENTS. All contributing project authors may |
| 52 | * be found in the AUTHORS file in the root of the source tree. |
| 53 | */ |
| 54 | |
| 55 | =============================================================================== |
| 56 | |
| 57 | /* |
| 58 | * http://www.kurims.kyoto-u.ac.jp/~ooura/fft.html |
| 59 | * Copyright Takuya OOURA, 1996-2001 |
| 60 | * |
| 61 | * You may use, copy, modify and distribute this code for any purpose (include |
| 62 | * commercial use) and without fee. Please refer to this package when you modify |
| 63 | * this code. |
| 64 | * |
| 65 | * Changes: |
| 66 | * Trivial type modifications by the WebRTC authors. |
| 67 | */ |
| 68 | |
| 69 | =============================================================================== |
| 70 | |
| 71 | /*Boost Software License - Version 1.0 - August 17th, 2003 |
| 72 | |
| 73 | Permission is hereby granted, free of charge, to any person or organization |
| 74 | obtaining a copy of the software and accompanying documentation covered by |
| 75 | this license (the "Software") to use, reproduce, display, distribute, |
| 76 | execute, and transmit the Software, and to prepare derivative works of the |
| 77 | Software, and to permit third-parties to whom the Software is furnished to |
| 78 | do so, all subject to the following: |
| 79 | |
| 80 | The copyright notices in the Software and this entire statement, including |
| 81 | the above license grant, this restriction and the following disclaimer, |
| 82 | must be included in all copies of the Software, in whole or in part, and |
| 83 | all derivative works of the Software, unless such copies or derivative |
| 84 | works are solely in the form of machine-executable object code generated by |
| 85 | a source language processor. |
| 86 | |
| 87 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 88 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 89 | FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT |
| 90 | SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE |
| 91 | FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, |
| 92 | ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 93 | DEALINGS IN THE SOFTWARE.*/ |
| 94 | |
| 95 | =============================================================================== |
| 96 | |
| 97 | // Copyright Steven J. Ross 2001 - 2009. |
| 98 | // Distributed under the Boost Software License, Version 1.0. |
| 99 | // (See accompanying file LICENSE_1_0.txt or copy at |
| 100 | // http://www.boost.org/LICENSE_1_0.txt) |
| 101 | |
| 102 | // See http://www.boost.org/ for updates, documentation, and revision history. |
| 103 | |
| 104 | /* |
| 105 | Some improvements suggested by: |
| 106 | Phil Endecott and Frank Gennari |
| 107 | Cygwin fix provided by: |
| 108 | Scott McMurray |
| 109 | */ |
| 110 | |
Eric Laurent | c55a963 | 2012-01-31 14:20:52 -0800 | [diff] [blame] | 111 | =============================================================================== |
Eric Laurent | e48d584 | 2011-06-16 21:50:24 -0700 | [diff] [blame] | 112 | |
Eric Laurent | c55a963 | 2012-01-31 14:20:52 -0800 | [diff] [blame] | 113 | // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 114 | // |
| 115 | // Redistribution and use in source and binary forms, with or without |
| 116 | // modification, are permitted provided that the following conditions are |
| 117 | // met: |
| 118 | // |
| 119 | // * Redistributions of source code must retain the above copyright |
| 120 | // notice, this list of conditions and the following disclaimer. |
| 121 | // * Redistributions in binary form must reproduce the above |
| 122 | // copyright notice, this list of conditions and the following disclaimer |
| 123 | // in the documentation and/or other materials provided with the |
| 124 | // distribution. |
| 125 | // * Neither the name of Google Inc. nor the names of its |
| 126 | // contributors may be used to endorse or promote products derived from |
| 127 | // this software without specific prior written permission. |
| 128 | // |
| 129 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 130 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 131 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 132 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 133 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 134 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 135 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 136 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 137 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 138 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 139 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 140 | |
| 141 | =============================================================================== |
| 142 | |
| 143 | // (C) Copyright Greg Colvin and Beman Dawes 1998, 1999. |
| 144 | // Copyright (c) 2001, 2002 Peter Dimov |
| 145 | // |
| 146 | // Permission to copy, use, modify, sell and distribute this software |
| 147 | // is granted provided this copyright notice appears in all copies. |
| 148 | // This software is provided "as is" without express or implied |
| 149 | // warranty, and with no claim as to its suitability for any purpose. |
| 150 | // |
| 151 | // See http://www.boost.org/libs/smart_ptr/scoped_ptr.htm for documentation. |
| 152 | // |
| 153 | |
| 154 | // scoped_ptr mimics a built-in pointer except that it guarantees deletion |
| 155 | // of the object pointed to, either on destruction of the scoped_ptr or via |
| 156 | // an explicit reset(). scoped_ptr is a simple solution for simple needs; |
| 157 | // use shared_ptr or std::auto_ptr if your needs are more complex. |
| 158 | |
| 159 | // scoped_ptr_malloc added in by Google. When one of |
| 160 | // these goes out of scope, instead of doing a delete or delete[], it |
| 161 | // calls free(). scoped_ptr_malloc<char> is likely to see much more |
| 162 | // use than any other specializations. |
| 163 | |
| 164 | // release() added in by Google. Use this to conditionally |
| 165 | // transfer ownership of a heap-allocated object to the caller, usually on |
| 166 | // method success. |
Eric Laurent | 5870e07 | 2012-02-17 10:26:11 -0800 | [diff] [blame] | 167 | |
| 168 | |
| 169 | =============================================================================== |
| 170 | /* |
| 171 | * Written by Wilco Dijkstra, 1996. |
| 172 | * Refer to NOTICE file at the root of git project. |
| 173 | * |
| 174 | * Minor modifications in code style for WebRTC, 2012. |
| 175 | */ |
| 176 | |
| 177 | // The following email record is related to source files spl_sqrt_floor.c |
| 178 | // and spl_sqrt_floor.s in trunk/src/common_audio/signal_processing/. |
| 179 | // |
| 180 | // |
| 181 | // From: Wilco Dijkstra <Wilco.Dijkstra@ntlworld.com> |
| 182 | // Date: Fri, Jun 24, 2011 at 3:20 AM |
| 183 | // Subject: Re: sqrt routine |
| 184 | // To: Kevin Ma <kma@google.com> |
| 185 | // Hi Kevin, |
| 186 | // Thanks for asking. Those routines are public domain (originally posted to |
| 187 | // comp.sys.arm a long time ago), so you can use them freely for any purpose. |
| 188 | // Cheers, |
| 189 | // Wilco |
| 190 | // |
| 191 | // ----- Original Message ----- |
| 192 | // From: "Kevin Ma" <kma@google.com> |
| 193 | // To: <Wilco.Dijkstra@ntlworld.com> |
| 194 | // Sent: Thursday, June 23, 2011 11:44 PM |
| 195 | // Subject: Fwd: sqrt routine |
| 196 | // Hi Wilco, |
| 197 | // I saw your sqrt routine from several web sites, including |
| 198 | // http://www.finesse.demon.co.uk/steven/sqrt.html. |
| 199 | // Just wonder if there's any copyright information with your Successive |
| 200 | // approximation routines, or if I can freely use it for any purpose. |
| 201 | // Thanks. |
| 202 | // Kevin |