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 2017-08-24 |
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A: HTML5 video is going to be the popular way of streaming video content on the web. I couldn’t really say how long it will take before it is adopted broadly, but it will happen, and probably faster than previously anticipated. As far as mobile broadband is concerned, it will improve the customer experience. As more HTML5-supported video formats are developed, the difference in experiencing video streaming, web based services and games will become smaller between different devices, OS and browsers. I don’t think HTML5 will completely replace Adobe Flash video or FLV, but it will make it much less of a dominating force.
Q: Will that hurt Adobe?
A: I believe it won’t. After all, Adobe doesn’t make any money when I download the Flash Player. As long as Adobe creates tools for developers to build applications for HTML5, developers will continue using Adobe products. And they just announced the release of Adobe Flash Media Server 4.5, with HTML5 support for developers. So it seems like a win-win situation. I think Adobe has played their hand well.
Q: And what about mobile operators? Is there anything they should do to prepare?
A: It’s no secret that smartphones and tablets have contributed to the huge growth of mobile video streaming in the last few years. Even without HTML5, that trend will continue. HTML5 will just be a new way to deliver what the subscribers want. We will need to help the operators optimize their HTML5-based video traffic to reduce congestion problems just as we do today for every other video format.
To seeking mobile TV resources and OMVC materials, visit TheFutureofTV.org/MobileTV
Choose the correct answer:
1. What technique of video-compressing has been developed in 2003?
a) H.264/MPEG-4 Part 10 or AVC
b) block-oriented – правильный вариант
2. What is the function of SVG?
a) to help developers make Adobe Flash-like animations –correct
b) to create tools for developers to support HTML5
a) HTML
b) HTML 5
4. The most common file format is:
a) WebM.
b) MP4 H264/AAC
EXERCISES TO UNIT VI:
Exercise 1. Read definitions to the key terms and analyze the context in which they are used:
| Coding | the process of assigning a code to something for classification or identification The forms are checked and returned to the census officer for coding. |
| Compression | to make a computer file use less space when it is stored in the memory of a computer or on a disk, by using a special program Firm compression of the soil in the pot will secure the plant. |
| Compiling | transformation of a program written in a high-level programming language from source code into object code. Compiling optimization can sometimes cause problems while profiling |
| Streaming | relating to or making use of a form of tape transport in which data may be transferred in bulk while the tape is in motion Streaming media allows you to listen to music or watch videos live and online. |
| DSL connections | (Digital subscriber line) is a family of technologies that provide Internet access by transmitting digital data over the wires of a local telephone network. A DSL internet connection is one of many effective communication tools for keeping employees in touch with the office. |
| LANs | (local area network) is a computer network that interconnects computers in a limited area such as a home, school, computer laboratory, or office building using network media. Early LAN cabling had been based on various grades of coaxial cable. |
| "One-to-one" system | a computer for every student which is an initiative created by many companies such as Microsoft, Apple, Dell, HP, and Intel One-to-one system is the future of education and improvement in schools and universities. |
| ITU-T | ITU Telecommunication Standardization Sector (ITU-T) is one of the three sectors (divisions or units) of the International Telecommunication Union (ITU); it coordinates standards for telecommunications In the work of standardization, ITU-T cooperates with other SDOs, e.g., the International Organization for Standardization (ISO) and the Internet Engineering Task Force (IETF). |
| ITU-T Video Coding Experts Group (VCEG) | Visual Coding Experts Group (VCEG) is the informal name of Question 6 (Visual coding) of Working Party 3 (Media coding) of Study Group 16 (Multimedia coding, systems and applications) of the ITU-T. Its abbreviated title is ITU-T Q.6/SG 16. It is responsible for standardization of the "H.26x" line of video coding standards, the "T.8xx" line of image coding standards, and related technologies. ITU-T Video Coding Experts Group’s standardization work on multimedia coding, systems and applications, including the coordination of related studies across the various ITU-T SGs. |
| ISO/IEC JTC1 Moving Picture Experts Group (MPEG) | is a working group of experts that was formed by ISO and IEC to set standards for audio and video compression and transmission. It was established in 1988 by the initiative of Hiroshi Yasuda (Nippon Telegraph and Telephone) and Leonardo Chiariglione, group Chair since its inception. The first MPEG meeting was in May 1988 in Ottawa, Canada ISO/IEC JTC1 MPEG keeps on exploring new opportunities for standards serving the needs of the media industry. |
| Demand | the desire of consumers, clients, employers, etc. for a particular commodity, service, or other item; an insistent and peremptory request, made as of right He has always demanded the highest standards of behaviour from his children. The big price rises in this country have been because of increased demand in other parts of the world. |
| Push video on demand | is a technique used by a number of broadcasters on systems that lack connectivity to provide true video on demand or by broadcasters who want to optimize their video streaming infrastructure by pre-loading the most popular contents to the consumer device. A push VOD system uses a personal video recorder (PVR) to store a selection of content, often transmitted in spare capacity overnight or all day long at low bandwidth. As content occupies space on the PVR hard drive, downloaded content is usually deleted after a week to make way for newer programs. The limited space on a PVR hard drive means that the selection of programs is usually restricted to most popular content. A new generation of Push VOD solution recently appeared on the market which, by using efficient error correction mechanisms, can free significant amount of bandwidth and that can deliver more than video e.g. magazines, interactive applications. With push video on demand technique users can watch the downloaded content at the time they desire, immediately and without any buffering issue. |
| Near video on demand | is a pay-per-view consumer video technique used by multi-channel broadcasters using high-bandwidth distribution mechanisms such as satellite and cable television. Multiple copies of a program are broadcast at short time intervals (typically 10–20 minutes) providing convenience for viewers. This form is bandwidth intensive and is generally provided only by large operators with a great deal of redundant capacity and has been reduced in popularity as video on demand is implemented. Pay-per-view provider In Demand provided up to 40 channels in 2002, with several films receiving up to four channels on the staggered schedule to provide the NVOD experience; however the service now provides only six channels of content, with In Demand sports PPV using the other channels. Near video on demand services are for those who can watch the program without needing to tune in at a scheduled point in time |
| The Open Mobile Video Coalition (OMVC) | is a consortium founded to advance free broadcast mobile television in the United States. It was created by TV stations to promote the ATSC-M/H television standard to consumers, electronics manufacturers, the wireless industry, and the Federal Communications Commission. The Open Mobile Video Coalition says the costs associated with the advertising effort would be low. |
| The Advanced Television Systems Committee (ASTC) | is the group, established in 1982, that developed the eponymous ATSC Standards for digital television in the United States, also adopted by Canada, Mexico, South Korea, and recently Honduras and is being considered by other countries. The Advanced Television Systems Committee (ATSC) has delivered an updated version of ATSC A/85 the core technology mandated by the Commercial Advertisement Loudness Mitigation Act. |
| Scalable Vector Graphics (SVG) | is an XML-based vector image format for two-dimensional graphics that has support for interactivity and animation. The SVG specification is an open standard developed by the World Wide Web Consortium (W3C) since 1999. Scalable Vector Graphics (SVG) object can be animated when it uses the animation element. |
Exercise 2. Match the words with correct definitions:
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| · Coding | · to press something into a smaller space |
| · Compression | · the process of assigning a code to something for classification or identification |
| · Compiling | · the activity of listening to or watching sound or video directly from the internet |
| · Streaming | · convert (a program) into a machine-code or lower-level form in which the program can be executed |
| · DSL connections | · supplies networking capability to a group of computers in close proximity to each other |
| · LANs | · medium for transferring data over regular phone lines and can be used to connect to the Internet |
| · "One-to-one" system | · International Telecommunication Union that coordinates telecommunications |
| · ITU-T | · an alliance of broadcasters dedicated to accelerating the development and rollout of mobile television, has recently integrated functions with the National Association of Broadcasters. |
| · ITU-T Video Coding Experts Group (VCEG) | · a working group of ISO/IEC with the mission to develop standards for coded representation of digital audio and video and related data. |
| · ISO/IEC JTC1 Moving Picture Experts Group (MPEG) | · responsible for standardization of the "H.26x" line of video coding standards, the "T.8xx" line of image coding standards, and related technologies |
| · Demand | · pay-per-view consumer video technique |
| · Push video on demand | · to ask for something forcefully, in a way that shows that you do not expect to be refused |
| · Near video on demand | · technique used by a number of broadcasters on systems that lack connectivity to provide true video |
| · The Open Mobile Video Coalition (OMVC) | · every student or teacher is given a computer, the internet and software anytime and anywhere |
| · The Advanced Television Systems Committee (ASTC) | · vector graphics file format that enables two-dimensional images to be displayed in XML pages on the Web |
| · Scalable Vector Graphics (SVG) | · international, non-profit organization developing voluntary standards for digital television. |
Exercise 3. Watch the video: http://www.youtube.com/watch?v=JDpwPqTBXbE
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