Usage of the Gstreamer Framework for the Generation, Analysis, Processing and Visualization of Sonar Signals
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Red Bud School Board Says No Mask Mandate Within District Buildings
Volume 42 Number 32 Thursday, August 12, 2021 20 Pages | 75¢ Red Bud school board says no mask mandate within district buildings. Use of face masks strongly “The decision to wear a mask or not to wear one should not be judged in recommended but not required any way,” Tallman stated By Dan Zobel the usage of masks only on in the message. “We are a Governor J.B. Pritzker an- school buses. close-knit community, and nounced August 4 a mask In speaking to the County a pillar of our community mandate for schools in the Journal August 10, Red is a collective spirit of sup- wake of rising positive Bud Superintendent Jona- port. I hope you will help us COVID-19 cases throughout than Tallman said, “The promote that by reminding the state, but the Red Bud parents were very pas- your child how important school district has chosen sionate, and at the same that is before we begin to not follow the mandate. time very respectful, and school.” The district held a special understood the position Tallman said that, so meeting August 5, the day the district was in. They far, he has heard a lot of after Pritzker’s announce- pleaded with our board to support and appreciation ment. consider the ramifications from parents. Although, After much discussion the masks have had on as he expected, he has also among board members their own children, and One mother illustrated man knows that a lot of received several notes and and with concerned par- for the district to maintain one of the ways face masks work still has to be done for emails from parents who ents who were in attend- local control.” become a hinderence. -
Inventors, Technologists and Entrepreneurs
19 November 2013 We, the undersigned, are a group of inventors, technologists and entrepreneurs. Many of us have founded technology businesses; we have invented many of the protocols, systems and devices that make the Internet work, and we are collectively listed as the inventors on over 150 patents. We write to you today about the U.S. patent system. That system is broken. Based on our experiences building and deploying new digital technologies, we believe that software patents are doing more harm than good. Perhaps it is time to reexamine the idea, dating from the 1980s, that government-issued monopolies on algorithms, protocols and data structures are the best way to promote the advancement of computer science. But that will be a complex task, and one we don't expect to happen quickly. Unfortunately, aspects of the problem have become so acute they must be addressed immediately. Broad, vague patents covering software-type inventions—some of which we ourselves are listed as inventors on—are a malfunctioning component of America's inventive machinery. This is particularly the case when those patents end up in the hands of non-practicing patent trolls. These non-practicing entities do not make or sell anything. Their exploitation of patents as a tool for extortion is undermining America’s technological progress; patent trolls are collecting taxes on innovation by extracting billions of dollars in dubious licensing fees, and wasting the time and management resources of creative businesses. Many of us would have achieved much less in our careers if the trolling problem had been as dire in past decades as it is now. -
A Software Defined Radio Testbed for Research in Dynamic Spectrum Access
A SOFTWARE DEFINED RADIO TESTBED FOR RESEARCH IN DYNAMIC SPECTRUM ACCESS A Thesis Submitted to the Faculty of Purdue University by David A. Clendenen In Partial Fulfillment of the Requirements for the Degree of Master of Science in Engineering May 2012 Purdue University Fort Wayne, Indiana ii For my uncle, Jeffrey Davis, who instilled in me from a young age the desire to learn how things work and inspired me to become an electrical engineer. iii ACKNOWLEDGMENTS I first thank Dr. Todor Cooklev for providing me with the opportunity to expand my engineering background to the world of wireless communications and software defined radio. I appreciate his patience and flexibility in working with me as I balanced my career, graduate courses and this research. Next, I thank my graduate committee; Dr. Chao Chen and Dr. Yanfei Liu and my thesis format advisor, Barbara Lloyd for their support and direction in my thesis writing. I also thank Dr. Elizabeth Thompson for first informing me of the National Science Foundation grant and Dr. Donald Mueller and Dr. Carlos Raez for selecting me as a recipient for the grant. I would also like to thank my colleagues at Regal Beloit and my manager, Dr. Roger Becerra, whose support and flexibility allowed me to accomplish my professional and educational goals. I thank my parents for always encouraging me and instilling in me the value of hard work. Most importantly I thank my wife, Tish, for her encouragement and understanding throughout my graduate studies. Above all else, without her support none of this would have been possible. -
Guile-Gnome-Gstreamer.Pdf
Guile-GNOME: GStreamer version 0.9.92, updated 10 November 2007 Wim Taymans many others This manual is for (gnome gstreamer) (version 0.9.92, updated 10 November 2007) Copyright 2000-2007 Wim Taymans and others Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 or any later version published by the Free Software Foundation. i Short Contents 1 Overview :::::::::::::::::::::::::::::::::::::::::::: 1 2 GstBin :::::::::::::::::::::::::::::::::::::::::::::: 2 3 GstBuffer:::::::::::::::::::::::::::::::::::::::::::: 8 4 GstBus::::::::::::::::::::::::::::::::::::::::::::: 13 5 GstCaps:::::::::::::::::::::::::::::::::::::::::::: 18 6 GstChildProxy :::::::::::::::::::::::::::::::::::::: 24 7 GstClock ::::::::::::::::::::::::::::::::::::::::::: 26 8 gstconfig ::::::::::::::::::::::::::::::::::::::::::: 33 9 GstElementFactory ::::::::::::::::::::::::::::::::::: 34 10 GstElement ::::::::::::::::::::::::::::::::::::::::: 37 11 GstGError :::::::::::::::::::::::::::::::::::::::::: 53 12 GstEvent ::::::::::::::::::::::::::::::::::::::::::: 55 13 GstFilter ::::::::::::::::::::::::::::::::::::::::::: 63 14 GstFormat :::::::::::::::::::::::::::::::::::::::::: 64 15 GstGhostPad:::::::::::::::::::::::::::::::::::::::: 66 16 GstImplementsInterface ::::::::::::::::::::::::::::::: 68 17 GstIndexFactory ::::::::::::::::::::::::::::::::::::: 69 18 GstIndex ::::::::::::::::::::::::::::::::::::::::::: 70 19 GstInfo :::::::::::::::::::::::::::::::::::::::::::: 74 20 GstIterator ::::::::::::::::::::::::::::::::::::::::: -
Oracle® Secure Global Desktop Platform Support and Release Notes for Release 5.2
Oracle® Secure Global Desktop Platform Support and Release Notes for Release 5.2 April 2015 E51729-03 Oracle Legal Notices Copyright © 2015, Oracle and/or its affiliates. All rights reserved. This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in any form, or by any means. Reverse engineering, disassembly, or decompilation of this software, unless required by law for interoperability, is prohibited. The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing. If this is software or related documentation that is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. Government, then the following notice is applicable: U.S. GOVERNMENT END USERS: Oracle programs, including any operating system, integrated software, any programs installed on the hardware, and/or documentation, delivered to U.S. Government end users are "commercial computer software" pursuant to the applicable Federal Acquisition Regulation and agency-specific supplemental regulations. As such, use, duplication, disclosure, modification, and adaptation of the programs, including any operating system, integrated software, any programs installed on the hardware, and/or documentation, shall be subject to license terms and license restrictions applicable to the programs. No other rights are granted to the U.S. -
Gstreamer & Rust
GStreamer & Rust Fast, safe and productive multimedia software FOSDEM 2018 – Rust devroom 4 February, Brussels Sebastian Dröge < [email protected] > Introduction Who? What? + What is GStreamer? https://gstreamer.freedesktop.org for more details GStreamer Pipeline-based, cross-platform multimedia framework Media Pipelines Philosophy Toolbox for higher-level multimedia processing Batteries included … … and usable from many languages But not … Media player or playback library Codec and protocol library Transcoding tool Streaming server … can be used to build all that! GStreamer ❤ Rust Why Rust? Memory-safety, fearless concurrency & modern language and tooling Why Rust? No runtime, no GC & zero-cost abstractions Why Rust? Ownership model maps perfectly to GStreamer's Using GStreamer from Rust Applications Safe, idiomatic bindings to the GStreamer C API https://github.com/sdroege/gstreamer- rs Examples: gstreamer-rs/examples Tutorials: gstreamer-rs/tutorials Plugins Safe, plain Rust infrastructure for writing plugins https://github.com/sdroege/gst-plugin- rs Contains various examples Tutorials being written right now The Future Write more Rust & write less C more plugins (rust-av!), more useful applications This is where you can get involved! We're not going to rewrite GStreamer (yet) It's the perfect time for writing your next GStreamer application or plugin in Rust Rust experience so far Don't be afraid of unsafe code if needed … … but wrap in safe abstractions Don't be afraid of other people's code Adding dependencies is easy, and -
D3 Intelligent Camera Platform
Easy! D3 Intelligent Camera Platform Intelligent Cameras | Framegrabbers | Made in Germany WWW.STEMMER-IMAGING.COM Ease of Use The D3 Intelligent Camera New Intelligent Camera Platform The D3 is the latest, most advanced intelligent camera generation by VRmagic. The D3 platform was designed with usability, flexibility, and performance in mind. Excellent Usability The D3 platform runs a wide range of embedded software and libraries, such as Common Vision Blox Embedded, EyeVision, or HALCON Embedded. This way you can easily take advantage of the latest, state- of-the-art machine vision algorithms. Additionally, the new Mono compatible .NET interface makes applica- tion development with the VRmagic SDK much easier. Software development for the D3 intelligent camera platform – that’s ease of use. Built-In Flexibility The D3‘s embedded system provides users with a high level of flexibility by supporting a multitude of interfaces, such as Ethernet, USB, and GPIOs. Choose either a standard OEM interface board for compact systems integration or an interface evaluation board for convenient test and development. A version for industrial environments is also available. Depending on the business case, a custom interface board may also be a viable option. High Performance The D3 intelligent camera platform features a 1 GHz ARM® Cortex™-A8 Core with floating point unit (FPU) running Linux. A 700 MHz C674x™ DSP with FPU is at your disposal for computationally intensive algo- The D3 Industrial Camera has a rigid aluminum rithms. 2 GB DDR3-800 RAM with 6103 MB/s band- body and industry-standard interfaces such as width and a Gigabit Ethernet interface ensure rapid 24 V power supply and Power over Ethernet. -
Software Libre Para Una Sociedad Libre
Software libre para una sociedad libre Richard M. Stallman Software libre para una sociedad libre Richard M. Stallman Introducción de Lawrence Lessig Diciembre 2004 Versión 1.0 Software libre para una sociedad libre Richard M. Stallman Título original: Free Software, Free Society: Selected Essays of Richard M. Stallman (GNU Press, 2002) Primera edición en castellano (en papel): Noviembre 2004 Traducción principal: Jaron Rowan, Diego Sanz Paratcha y Laura Trinidad Edición: Traficantes de Sueños c/ Hortaleza 19, 1o Dcha. 28004 Madrid. Tlfno: +34 1 5320928 http://traficantes.net c Copyright 2004 de los artículos de este libro, Richard M. Stallman c Copyright 2004 de la Introducción, Lawrence Lessig c Copyright 2004 de la Edición, Traficantes de Sueños Se permite la copia, ya sea de uno o más artículos completos de esta obra o del conjunto de la edición, en cualquier formato, mecánico o digital, siempre y cuando no se modifique el contenido de los textos, se respete su autoría y esta nota se mantenga. ISBN: 84-933555-1-8 Depósito Legal: M-44298-2004 Edición digital a cargo de: Miquel Vidal <[email protected]>. Esta edición electrónica se ha realizado íntegramente con software libre, mediante el procesador LATEX 2ε, GNU Emacs y AUCTEX. 3 Traficantes de Sueños Traficantes de Sueños no es una casa editorial, ni siquiera una editorial independiente que contempla la publicación de una colección variable de textos críticos. Es, por el contrario, un proyecto, en el sentido estricto de «apuesta», que se dirige a cartografíar las líneas constituyentes de otros órdenes de vida. La construcción teórica y práctica de la caja de herramientas que, con palabras propias, puede componer el ciclo de luchas de las próximas décadas. -
Camcorder Multimedia Framework with Linux and Gstreamer
Camcorder multimedia framework with Linux and GStreamer W. H. Lee, E. K. Kim, J. J. Lee , S. H. Kim, S. S. Park SWL, Samsung Electronics [email protected] Abstract Application Applications Layer Along with recent rapid technical advances, user expec- Multimedia Middleware Sequencer Graphics UI Connectivity DVD FS tations for multimedia devices have been changed from Layer basic functions to many intelligent features. In order to GStreamer meet such requirements, the product requires not only a OSAL HAL OS Layer powerful hardware platform, but also a software frame- Device Software Linux Kernel work based on appropriate OS, such as Linux, support- Drivers codecs Hardware Camcorder hardware platform ing many rich development features. Layer In this paper, a camcorder framework is introduced that is designed and implemented by making use of open Figure 1: Architecture diagram of camcorder multime- source middleware in Linux. Many potential develop- dia framework ers can be referred to this multimedia framework for camcorder and other similar product development. The The three software layers on any hardware platform are overall framework architecture as well as communica- application, middleware, and OS. The architecture and tion mechanisms are described in detail. Furthermore, functional operation of each layer is discussed. Addi- many methods implemented to improve the system per- tionally, some design and implementation issues are ad- formance are addressed as well. dressed from the perspective of system performance. The overall software architecture of a multimedia 1 Introduction framework is described in Section 2. The framework design and its operation are introduced in detail in Sec- It has recently become very popular to use the internet to tion 3. -
Internet of Things Spectrum Monitoring and Localization
MQP 2A18 Internet of Things Spectrum Monitoring and Localization A Major Qualifying Project Submitted to the Faculty of WORCESTER POLYTECHNIC INSTITUTE In partial fulfillment of the requirements for the Degree of Bachelor of Science By: _________________________________ Lauren Getz _________________________________ William Schwartz _________________________________ Katherine Smith Project Advisors: ____________________________________________ Professor Stephen J. Bitar, Electrical & Computer Engineering- Advisor-of-Record ____________________________________________ Professor Michael J. Ciaraldi, Computer Science -Co-Advisor ____________________________________________ Professor Alexander M. Wyglinski, Electrical & Computer Engineering- Co-Advisor Abstract A system which localizes indoor sub-1GHz transmission signals provides a low cost and effective alternative to traditional signal sensing and localization. The system uses a pre-existing WiFi network, PlutoSDRs, and a web server to visualize the estimated location of the transmitted signals. The system achieved 2.5-meter accuracy under ideal conditions satisfying the goal of 3- meter accuracy set forth by the team. i Acknowledgements We would like to thank our advisors, Stephen Bitar, Michael Ciaraldi, and Alex Wyglinski for their mentorship throughout the duration of this project. ii Executive Summary Implementing localization with SDR devices is more cost effective and more accurate than other spectrum sensing products currently on the market. With the development of Internet of Things (IoT), many smart devices are increasingly using wireless communication, making localization of these devices an important security measure. Using the PlutoSDR, signals were effectively localized within 3-meter accuracy on the 900MHz band. Problem Statement IoT devices can pose a threat to a secure network. Since there are a lot of known IoT vulnerabilities [1], many malicious actors will target them in order to gain access to an otherwise secure network. -
1. Mengapa GIMP & Inkscape Tidak Punya Warna
Paten Software Merugikan Komunitas Free Software Bismillahirrahmanirrahim. Copyright © 2016 Ade Malsasa Akbar <[email protected]> Tulisan ini berbicara mengenai bahaya paten software yang mengakibatkan banyak Free Software mengalami kekurangan fitur dibanding software proprietari komersial. Tulisan ini awalnya berjudul Mengapa Free Software Mengalami Kekurangan Fitur? tetapi diubah pada 16 Maret 2016 menjadi berjudul yang sekarang. Tulisan ini diharapkan membangkitkan kesadaran setiap orang terhadap perlunya Free Software. Tulisan ini disusun dalam format tanya jawab atau FAQ supaya tepat sasaran dan mudah dimengerti. Saya bukan hanya menulis ini untuk mereka yang bertanya-tanya kenapa Free Software seperti LibreOffice, GIMP, Inkscape, ODF, dan OGG Vorbis mengalami kekurangan fitur. Namun juga saya meniatkan tulisan ini sebagai pengantar buat siapa saja yang hendak menggunakan Free Software, baik pengguna baru maupun yang sudah lama. 1. Mengapa GIMP & Inkscape tidak punya warna Pantone? Karena Pantone Color Matching telah dipatenkan1. Hanya pemilik paten tersebut yang berhak membuat implementasi Pantone di dalam software. Konsekuensinya, GIMP (dan free software lainnya) dilarang membuat fitur Pantone ke dalam software. 2. Mengapa Linux Mint menyediakan versi no-codec? Karena versi no-codec2 dibuat untuk negara Jepang yang di sana MP3 dipatenkan. Pada dasarnya tidak boleh mendistribusikan codec MP3 di Jepang kecuali pemegang asli paten MP3. Berlaku juga untuk negara Amerika Serikat dan Uni Eropa. 3. Mengapa Linux Mint menyertakan codec? Karena versi Linux Mint yang menyertakan codec itu ditujukan untuk semua negara yang di sana codec MP3 tidak dipatenkan. Linux Mint (yang memuat codec) tidak didistribusikan di negara Jepang, Amerika Serikat, dan Uni Eropa3 karena di sana MP3 telah dipatenkan. Kenyataan ini yang tidak banyak diketahui. -
Praise for the Official Ubuntu Book
Praise for The Official Ubuntu Book “The Official Ubuntu Book is a great way to get you started with Ubuntu, giving you enough information to be productive without overloading you.” —John Stevenson, DZone Book Reviewer “OUB is one of the best books I’ve seen for beginners.” —Bill Blinn, TechByter Worldwide “This book is the perfect companion for users new to Linux and Ubuntu. It covers the basics in a concise and well-organized manner. General use is covered separately from troubleshooting and error-handling, making the book well-suited both for the beginner as well as the user that needs extended help.” —Thomas Petrucha, Austria Ubuntu User Group “I have recommended this book to several users who I instruct regularly on the use of Ubuntu. All of them have been satisfied with their purchase and have even been able to use it to help them in their journey along the way.” —Chris Crisafulli, Ubuntu LoCo Council, Florida Local Community Team “This text demystifies a very powerful Linux operating system . in just a few weeks of having it, I’ve used it as a quick reference a half dozen times, which saved me the time I would have spent scouring the Ubuntu forums online.” —Darren Frey, Member, Houston Local User Group This page intentionally left blank The Official Ubuntu Book Sixth Edition This page intentionally left blank The Official Ubuntu Book Sixth Edition Benjamin Mako Hill Matthew Helmke Amber Graner Corey Burger With Jonathan Jesse, Kyle Rankin, and Jono Bacon Upper Saddle River, NJ • Boston • Indianapolis • San Francisco New York • Toronto • Montreal • London • Munich • Paris • Madrid Capetown • Sydney • Tokyo • Singapore • Mexico City Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks.