8000 [3.10] bpo-2716: add license for audioop module (GH-19972) (#98532) · python/cpython@586bb1f · GitHub
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[3.10] bpo-2716: add license for audioop module (GH-19972) (#98532)
bpo-2716: add license for audioop module (GH-19972) (cherry picked from commit 4c1145b) Co-authored-by: Furkan Onder <furkanonder@protonmail.com>
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‎Doc/license.rst

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@@ -984,3 +984,28 @@ https://www.w3.org/TR/xml-c14n2-testcases/ and is distributed under the
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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Audioop
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-------
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The audioop module uses the code base in g771.c file of the SoX project::
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Programming the AdLib/Sound Blaster
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FM Music Chips
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Version 2.0 (24 Feb 1992)
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Copyright (c) 1991, 1992 by Jeffrey S. Lee
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jlee@smylex.uucp
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Warranty and Copyright Policy
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This document is provided on an "as-is" basis, and its author makes
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no warranty or representation, express or implied, with respect to
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its quality performance or fitness for a particular purpose. In no
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event will the author of this document be liable for direct, indirect,
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special, incidental, or consequential damages arising out of the use
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or inability to use the information contained within. Use of this
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document is at your own risk.
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This file may be used and copied freely so long as the applicable
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copyright notices are retained, and no modifications are made to the
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text of the document. No money shall be charged for its distribution
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beyond reasonable shipping, handling and duplication costs, nor shall
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proprietary changes be made to this document so that it cannot be
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distributed freely. This document may not be included in published
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material or commercial packages without the written consent of its
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author.

‎Modules/audioop.c

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/* The audioop module uses the code base in g777.c file of the Sox project.
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* Source: https://web.archive.org/web/19970716121258/http://www.spies.com/Sox/Archive/soxgamma.tar.gz
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* Programming the AdLib/Sound Blaster
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* FM Music Chips
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* Version 2.0 (24 Feb 1992)
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*
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* Copyright (c) 1991, 1992 by Jeffrey S. Lee
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*
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* jlee@smylex.uucp
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*
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*
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*
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* Warranty and Copyright Policy
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*
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* This document is provided on an "as-is" basis, and its author makes
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* no warranty or representation, express or implied, with respect to
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* its quality performance or fitness for a particular purpose. In no
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* event will the author of this document be liable for direct, indirect,
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* special, incidental, or consequential damages arising out of the use
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* or inability to use the information contained within. Use of this
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* document is at your own risk.
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*
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* This file may be used and copied freely so long as the applicable
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* copyright notices are retained, and no modifications are made to the
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* text of the document. No money shall be charged for its distribution
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* beyond reasonable shipping, handling and duplication costs, nor shall
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* proprietary changes be made to this document so that it cannot be
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* distributed freely. This document may not be included in published
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* material or commercial packages without the written consent of its
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* author. */
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/* audioopmodule - Module to detect peak values in arrays */
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}
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/* Code shamelessly stolen from sox, 12.17.7, g711.c
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** (c) Craig Reese, Joe Campbell and Jeff Poskanzer 1989 */
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/* From g711.c:
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*
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* December 30, 1994:
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* Functions linear2alaw, linear2ulaw have been updated to correctly
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* convert unquantized 16 bit values.
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* Tables for direct u- to A-law and A- to u-law conversions have been
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* corrected.
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* Borge Lindberg, Center for PersonKommunikation, Aalborg University.
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* bli@cpk.auc.dk
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*
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*/
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#define BIAS 0x84 /* define the add-in bias for 16 bit samples */
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#define CLIP 32635
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#define SIGN_BIT (0x80) /* Sign bit for an A-law byte. */

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