SRS of video hosting

SRS OF VIDEO HOSTING SITE Under the Guidance Of Mr. SUMIT AGGARWAL on 02-Dec-09

SUBMITTED BY SUGANDHA AGARWAL UDIT MISHRA VARSHA GUPTA ALL THE ABOVE MENTIONED STUDENTS ARE OF B.TECH. (I.T.) 3RD YEAR.

VIBHUTI SINGH VISHAL TYAGI

SRS OF VIDEO HOSTING SITE

Contents Introduction to video hosting service……………………………………………………………………4 1. Purpose of video hosting site(users)…………………….

………………………………………………………..4 2. Key characteristics of video sharing as a service…..

………………………………………………………..5 3. Scope……………………………………………………………………………………

………………………………………..5 4. References………………………………………………………………………………

……………………………………..7

Overall description………………….. …………………………………………………………………………..8 1. Product perspective……………………………………………………………………………………… ……………………………8 2. Product features…………………………………………………………………………………………… ……………………………8 3. User

classes

&

characteristics……..

………………………………………………………………………………………………8 4. General constraints……………………………………………………………………………………… …………………………….9 5. Operating environment…………………………………………………………………………………… …………………………9

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External interface requirements………………….. …………………………………………………….10 1. User interfaces………………………………………………………………………………………… ……………………………….10 2. Software interfaces………………………………………………………………………………………… ………………………..11 2.1.Server site system requirements………………………………………………………………………… ………… ….11 2.2.User site system requirements………………………………………………………………………… ………… …….12 2.3.Content management system………………………………………………………………………………………. ……12 2.3.1. Capabilities………………………….. ………………………………………………………………………………..13 2.3.2. Types…………………………….. ………………………………………………………………………………………15 2.3.3. Online processing………………………………………………………………………… ………………………..15 2.3.4. Hybrid systems……………………………………………………………………………… ……………….........15 2.3.5. Web content management system and history………………………………….……..…………..15 3.

Hardware

interfaces……………………………………….

…………………………………………………………………………..16 4.

Communication

interfaces…………………….

…………………………………………………………………………………….16 2

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Performance

requirements………….

………………………………………………………………………………………………16

Video stream search………..... ………………………………………………………………………………16 1. Description and prioroity…………………………………………………………………………………………… …………….16 2. Stimulus/response sequences……………………………………………………………………………………… …………..17 3. Functional requirement……………………………………………………………………………………… …………………….17

Data flow diagram……………………………………………………………………… ………………………19 1. Data flow diagram level0…………………………………………………………………………………………………… ……19 2. Data flow diagram level1…………………………………………………………………………………………………… ……19

Use Case Diagram…………………………………………………………………………… …………………21

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INTRODUCTION TO VIDEO HOSTING SERVICE A video hosting service allows individuals to upload video clips to an Internet website. The video host will then store the video on its server, and show the individual different types of code to allow others to view this video. The website, mainly used as the video hosting website, is usually called the video sharing website. Because many users do not have unlimited web space, either as a paid service, or through an ISP offering, video hosting services are becoming increasingly popular, especially with the explosion in popularity of blogs, forums, and other interactive pages. The mass market for camera phones has increased the supply of usergenerated video. Traditional methods of personal video distribution, such as making a DVD to show to friends at home, are unsuited to the low resolution and high volume of camera phone clips. In contrast, current broadband Internet connections are well suited to serving the quality of video shot on mobile phones. Most people do not own web servers, and this has created demand for user-generated video content hosting, which the likes of YouTube are catering to. Mobile video hosting A more recent application of the video hosting services is in the mobile web 2.0 arena, where video and other mobile content can be delivered to, and easily accessed by mobile devices. While video-hosting services such as YouTube have developed means by which video can be watched on mobile devices, mobile-oriented web-based frontends for video hosting services that possess equal access and capability to desktop oriented web services have yet to be developed.  Mobile live streaming software called Qik allows the users to upload videos from their cell phones to the internet. The videos will then be stored online and can be shared to various social networking sites like Twitter, Facebook and YouTube. Videos will be stored on the servers and can be watched from both the mobile devices and the website. 

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SRS OF VIDEO HOSTING SITE  Purpose of video hosting site (USERS) •

Save on bandwidth costs, often eliminating costs entirely

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Creating a common place

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Make a hassle-free experience, where uploading a video and streaming or embedding would normally require advanced programming knowledge. It is now commonly achieved through a web browser, with little or no programming experience.

 Key characteristics of Video Sharing as a Service: •

The application is delivered primarily in a one-to-many model (single instance, Multi-tenant architecture)

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Feature updates are done in the network and are transparent to the users, which eliminates the need for downloadable patches and upgrades

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Edge devices (cameras and recorders) are plug-and-play - all customer premise equipment connects to the video service without requiring configuration by the customer

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All application functionality is available via the Internet using a web interface without requiring an application installed on a desktop

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Provides centrally controlled/administered access that is mandatory for proper security and allows centralized administration of users and video, making it easy to add or remove users

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Scalable to hundreds or thousands of locations

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Provides ability to view not only live video but also to search and review recorded video

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Works through firewalls and NAT devices without configuration, and will run over low speed, high speed, and satellite connections

 SCOPE

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Video sharing refers to websites or software where users can distribute their video clips. Some services may charge, but the large majority of them offer free services. Many services have options for private sharing and other publication options. Video sharing services can be classified into several categories, among them: user generated video sharing websites, video sharing platform / white label providers and web based video editing. Please note that websites that are solely search engines and do not provide the hosting of their video content (such as Singingfish) is not included in this article.

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User generated video sharing User generated sites mostly offer free services whereby users can upload video clips and share it with the masses. Many sites place restrictions on the file size, duration, subject matter and format of the uploaded video file. Most sites don't allow nudity, though each site makes judgment calls on what qualifies as inappropriate content. Some sites also flag adult material to keep it out of their public pool of content. Some sites screen all their content before it is published and others approve first and use community features to filter out inappropriate content "after-the-fact." Website in this category are: Facebook, Flickr, Gubb (Gubb.tv)

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Video sharing platform/ White label Providers Platform and White Label Providers sell the technology to various parties that allow them to create the services of the aforementioned "User Generated Video Sharing" websites with the client's brand. Just as Akamai and other companies host and manage video/image/audio for many companies, these white-labels "host video content". Many of these companies also offer their own user-generated video sharing website both for commercial purposes and to show off their platform. Websites in this category are: Clip-Share, Homemovie.com.

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Enterprise Video Hosting Providers Enterprise video hosting sites are aimed at businesses wanting to share video content internally with employees or externally with customers, partners,

or

prospects.

Features

may

include

limiting

access

to 2

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authenticated users, tracking of user actions, integration with single signonservices and a lack of the advertisements normally present on public sites. Among sites in this category are: Brightcove, Kewego, TVtrip.com •

Web based video editing Web based video editing sites generally offer the "user generated video sharing" website in addition to some form of editing application. Some of these applications simply allow the user to crop a video into a smaller clip. Other services have invested much time and effort into replicating the same functionality that has previously only been available via Windows Movie Maker, iMovie and other client-side applications that run outside of a web page. Some of these applications are based in AJAX and others in Flash. Some websites also offer downloadable editors but they will not be listed here due to the number of pre-existing video editors. Websites in this category include (in alphabetical order): Homemovie.com, YouTube



REFERENCES

Separate studies conducted by Vishal Tyagi, Udit Mishra, Vibhuti Singh, Sugandha Agarwal and Varsha Gupta on video distribution within the home. All studies created on Nov 2009. http://www.youtube.com, http://www.megavideo.com, http://www.facebook.com, http://www.surfthechannel.com, http://www.google.com

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OVERALL DESCRIPTION  Product Perspective

The program is a new self-contained product. It has come about due to the demand for such a product being identified in a series of Ethnography studies. From these studies we saw that the main activity people used video for was the watch content found online. These people would regularly spend periods of time searching websites to try and find the videos they wanted to watch, either somewhere to stream the video from or the files to download the video. Our system will aim to speed up this process.  Product Features The main feature of the system will be a search engine for finding the location of videos and streaming sites for videos on the internet. The user can specify which of the 2 or both to look for. The results will be divided into the types that were specified using different tabs, and then the results will be orderable by different categories, such as name, size, site, etc. The user will have the option to filter out videos containing certain content depending on age restrictions, for example adult content. In addition the user will have the option to filter out or only search certain websites; for example a user may only want to look at videos on YouTube. They will have the facility for users to store their favorite videos, so that they can come back to the video at another time.  User Classes and Characteristics There will be two levels of user for our system. The first will be the general user that will be using our software to find their videos. They will only see the front end of the system. The second level will be the system developers. They will be able to edit which sites the system will search, depending on 1

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whether they think the site is safe, compatible with respective softwares, the speed at which the site can be searched, and how useful the site is to users, i.e. how many results have come back from that site  General Constraints

Server capacity is how many users can access or can be online at once. More is the number of users more will be the network traffic and hence the server comes in a down state. Personal firewall and updating is a tough task, it should be such that it should not block the network traffic, making the system slower. Firewall of the server should not collide with the firewall of the user system.  Operating Environment The system will be portable; this means it will work across different operating systems including Microsoft XP and Vista, Mac OS X and a range of Linux platforms. Also it will work with different web browsers, for example Internet Explorer, Firefox, and Safari. The hardware needed for our system will be a reasonably up-to-date computer that is connected to the internet via a modem.

EXTERNAL INTERFACE REQUIREMENTS  User Interfaces 2

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The user Interface will consist of one main screen, allowing all the functionally to come from this one screen. This allows the user to use the software with ease by not flicking through a number of different screens. In addition to this the user can always see the videos they are looking for. The main screen will be laid out as in Appendix: B Diagram along with the description of the diagram. We decided on this type of interface because we felt that it would be very simple for the user to navigate. From our reports we found that the simpler the interface was, the more people liked it. With all these features complied into one screen it will give the software more flexibility and allows for easy and simple usage. This will appeal to both naïve computer users and experienced computer users with a higher selling market. Appendix B: Diagrams

1- The first feature of the software is a menu bar. This software includes the basic features used in similar products such as new search, close, load etc. However with our software there are two extra features. These being a filter option which allows the user to set parental controls over the software. This enables the user to be able to search for videos without getting explicit 2

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content. In addition to this there is a favorite’s option. This feature gives the user the option of being able to store links to their favorite videos in the software, and be able to go back to these websites after restarting the software. 2- This is the main engine behind the software. This is where the user enters the name of the video they wish to search for. Once the user has typed in the name of their desired video they can either press the enter key or the search button to run the query. 3- These tick boxes tell the software to search for either torrents or streaming videos, depending on what type of video the user wishes to view. 4- These are the tabs which bring up the different pages of the search results. This allows the user. 5- This is where the actual search results will be displayed. Within these display fields the User will be told the name of the video, the location of the video (which website the Video is on), the size of the video so the user can decide if they wish to download the Video or just to stream the video, the rating of the video with information on how safe The website is, and finally comments on the video (what other user think of the video). With this the user can then decide on how he wants the search results sorted using the Column headers at the top.  Software Interfaces The software will use hyperlinks to allow the user to open websites in their default Web browser. ➢

Server Site system requirements

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Unix/Linux operating system with 32-bit or 64-bit support

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SQL database. MySQL pre-compiled binaries recommended

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Apache2 (mpm-prefork) with SSL support

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PHP5 with support for MySQL, OpenSSL, cURL, etc.

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Setup and configuration of: log rotation in cron jobs, virtual hosts, SSL certificates, RAID 5 storage or NAS/SAN storage in larger installations. ➢ User Site System Requirements In order to watch videos on such sites, user should make sure that his system has access to the following system requirements: •

Macromedia Flash Player 7.0+ plug-in

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Windows 2000 or higher with latest updates installed

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Mac OS X 10.3 or higher

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Firefox 1.1+, Internet Explorer 5.0+ or Safari 1.0+

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Broadband connection with 500+ Kbps

➢ Content Management System

Web-content-management system (WCM, WCMS or Web CMS) is content management system (CMS) software, implemented as a Web application, for creating and managing HTML content. It is used to manage and control a large, dynamic collection of Web material (HTML documents and their associated images). A WCMS facilitates content creation, content control, editing, and essential Web maintenance functions. The software provides authoring (and other) tools designed to allow users with little knowledge of programming languages or markup languages to create and manage content with relative ease. Most systems use a database to store content, metadata, or artifacts that might be needed by the system. Content is frequently, but not universally, stored as XML, to facilitate reuse and enable flexible presentation options.[1][2] A presentation layer displays the content to Web-site visitors based on a set of templates. The templates are sometimes XSLT files.[3] Most systems use server side caching boosting performance. This works best when the WCMS is not changed often but visits happen on a regular basis.[4]

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Administration is typically done through browser-based interfaces, but some systems require the use of a fat client. Unlike Web-site builders, a WCMS allows non-technical users to make changes to a website with little training. A WCMS typically requires an experienced coder to set up and add features, but is primarily a Web-site maintenance tool for non-technical administrators. a) Capabilities A WCMS is a software system used to manage and control a dynamic collection of Web material (HTML documents, images and other forms of media).[5] A CMS facilitates document control, auditing, editing, and timeline management. A WCMS typically has: •

Automated templates

Create standard output templates (usually HTML and XML) that can be automatically applied to new and existing content, allowing the appearance of all content to be changed from one central place. •

Easily editable content

Once content is separated from the visual presentation of a site, it usually becomes much easier and quicker to edit and manipulate. Most WCMS software includes WYSIWYG editing tools allowing non-technical individuals to create and edit content. •

Scalable feature sets

Most WCMS software includes plug-ins or modules that can be easily installed to extend an existing site's functionality. •

Web standards upgrades

Active WCMS software usually receives regular updates that include new feature sets and keep the system up to current web standards. •

Workflow management

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Workflow is the process of creating cycles of sequential and parallel tasks that must be accomplished in the CMS. For example, a content creator can submit a story, but it is not published until the copy editor cleans it up and the editor-in-chief approves it. •

Delegation

Some CMS software allows for various user groups to have limited privileges over specific content on the website, spreading out the responsibility of content management. •

Document management

CMS software may provide a means of managing the life cycle of a document from initial creation time, through revisions, publication, archive, and document destruction. •

Content virtualization

CMS software may provide a means of allowing each user to work within a virtual copy of the entire Web site, document set, and/or code base. This enables changes to multiple interdependent resources to be viewed and/or executed in-context prior to submission.

a) Types There are three major types of WCMS: offline processing, online processing, and hybrid systems. These terms describe the deployment pattern for the WCMS in terms of when presentation templates are applied to render Web pages from structured content. b) Online processing (called "frying" systems) These systems apply templates on-demand. HTML may be generated when a user visits the page, or pulled from a cache. Most open source WCMSs have the capability to support add-ons, which provide extended capabilities including forums, blog, wiki, web-stores, photo2

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galleries, contact-management, etc. These are often called modules, nodes, widgets, add-ons or extensions. Add-ons may be based on an open-source or paid licence model. Different

WCMSs

have

significantly

different

feature-sets

and

target

audiences. c) Hybrid Systems Some systems combine the offline and online approaches. Some systems write out executable code (e.g. JSP, ASP, PHP, ColdFusion, or Perl pages) rather than just static HTML, so that the CMS itself does not need to be deployed on every Web server. Other hybrids, operate in either an online or offline mode. d) Web content management system history Web content management systems began to be formally developed as commercial software products in the mid 1990s. In the mid 2000s, the web content management market became a fragmented market as a plethora of new providers emerged to complement the traditional vendors. These web content management systems may be categorized as: software as a service, enterprise, mid-market, or open source.  Hardware Interfaces

The external hardware interface used for accessing the video hosting sites is the personal computers of the users. The PCs may be laptops, notebooks, netbooks with internet connections as a wireless connection, via modems, or broadband.  Communications Interfaces Communication standards that will be used through the software will be PHP or Other such languages. These will be used to query the different servers that the Websites use and will give us back.  Performance Requirements

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Query times will take no longer than 5 seconds to any website.

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Sending the hyperlink to the default browser will take less than 1 second.

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Loading the program will take less than 10 seconds.

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Any result with 0 seeds will not be displayed.

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Sorting results should take less than 0.1 seconds.

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A results page will display 100 results.

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Any result with a rating of less than 1 will not be displayed.

Video Stream Search  Description and Priority This feature will search a term the user enters, through a database of compatible video streaming websites that are added by the development team. The video websites will range from sites that actually host video such as MegaVideo, YouTube, etc as well as websites that show links to videos hosted on other sites such as surfthechannel.com, alluc.org, etc. The results will be displayed in a tab on the programs main window. This tab will be split horizontally into two sections, the top half for the video hosting sites and the bottom half for the video link sites. This is another of the main features of the software and also has a higher priority for development.  Stimulus/Response Sequences User ticks streaming host tick box – system will now query the video hosting sites in its database when a search is started. Hosting sites will include the actual videos on their servers, e.g. YouTube. User ticks streaming links tick box – system will now query the video link sites in its database when a search is started. The link sites will include external video links to different video hosting sites, e.g. surfthechannel.com. User enters search term and

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starts search – system sends queries to the video websites in its database based on the search term. Results for this query will then be sent to the video stream tab in the program. The hosting half of the tab displays the website, full video name, length and date posted. The link half of the tab displays the website and video name (e.g. combination of the show’s name and the episode name). User sorts the search results by clicking once on the column header – system sorts all results by descending/ascending order. User filters websites they want to be shown in the results – system removes unselected websites from the results. User clicks on next page button – system displays the next set of results for the search.  Functional Requirements • •

Streaming search will share the same search bar with the torrent search. Database of video hosting and video linking sites can be updated via the internet.

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There will be a tick box to allow the user to choose to include video host searching in the search

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There will be a tick box to allow the user to choose to include video link searching in the search.

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Query to video hosting sites will retrieve full video name, length, date posted and a link to the video itself.

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Query to video link sites will retrieve the show’s name, episode name and a link to the webpage itself.

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If no results are found on a search it will display a message “No results were found for this search.”

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Results will be arranged in length/date/alphabetical order by clicking on the column headers.

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There will be page button for the user to navigate the results.

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DATA FLOW DIAGRAM •

Data flow diagram level-0

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Data flow diagram level-1

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USE CASE DIAGRAM

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