17 Aralık 2007 Pazartesi

Google Video

Google Video is a free video sharing service from Google that allows anyone to upload video clips to Google's web servers as well as make their own media available free of charge; some videos are also offered for sale through the Google Video Store. Users can search and play these uploaded videos directly from the Google Video website, as well as download video files and remotely embed them on their web pages.

Uploaded videos were saved as a .gvi files under the "Google Videos" folder in "My Videos" and reports of the video(s) details are logged and stored in the user account. The report sorts and lists the number of times that each of the users videos have been viewed and downloaded within a specific time frame. These range from the previous day, week, month or the entire time that the videos have been there for. Totals are calculated and displayed and the information can be downloaded into a spreadsheet format or printed out.

Competing services include iFilm, Metacafe, Veoh, blip.tv and Outloud.tv. On October 9, 2006 Google agreed to buy former competitor YouTube for $1.65 billion in stock, but YouTube will remain a separate service under its own identity for the near future, though Google video searches include YouTube results as well..

Google Video logo

Video content

Google Video is geared towards providing a large archive of freely searchable videos. Besides amateur media, Internet videos, viral ads, and movie trailers, the service also aims to distribute commercial professional media, such as televised content and movies.

A number of educational discourses by Google employees have been recorded and available for viewing via Google Video. The lectures have been done mainly at the employee's former universities. The topics cover Google technologies and software engineering but also include other pioneering efforts by major players in the software engineering field.

Various media companies offer content on Google Video for purchase, including CBS programs, NBA, music videos, and independent film. Initially, the content of a number of broadcasting companies (such as ABC, NBC, CNN) was available as free streaming content or stills with closed captioning. In addition, the U.S. National Archive uses Google Video to make historic films available online.

Flash Video

The Google Video Player displays a Flash Video (.flv) file in a Flash-enabled browser. The flash video file is in Adobe Flash format, and requires that the Adobe Flash plugin be installed in the web browser (the latest version of this plugin is called Adobe Flash Player 9). The plugin is available at Adobe's website.

The browser automatically caches the flash file whilst it plays, and it can be retrieved from the browser's cache once it has fully played. In Windows o/s variants this cache is typically located at "C:WindowsTemporary Internet Files". This flash file will play in Media Player Classic (provided that ffdshow is installed), MPlayer, or in the standalone Wimpy flash player, amongst others. In Mac OS X you can playback .flv files in SWF & FLV Player.

Google Video Player

Google Video Player is another way to view Google videos; it runs on Microsoft Windows and Mac OS X. The Google Video Player renders files in Google's own Google Video File (.gvi) media format and supports playlists in "Google Video Pointer" (.gvp) format. When users download to their computers, the resulting file will be a small .gvp (pointer) file rather than a .gvi file. When run, the .gvp file will download a .gvi (movie) file to the user's default directory.

While early versions of Google's in-browser video player code were based on the open source VLC Media Player, the current version of Google Video Player is not based on VLC, according to its readme file. However, it does include the OpenSSL cryptographic toolkit and some libraries from the Qt widget toolkit.

GVI format and conversion

Google Video Files (.gvi), and latterly its .avi files, are modified Audio Video Interleave (.avi) files that have an extra list containing the FourCC "goog" immediately following the header. The list can be removed with a hex editor to avoid playback issues with various video players.[4][5] The video is encoded in DivX4 alongside an MP3 audio stream. DivX video players can render .gvi Google Video Files without format conversion (after changing the extension from .gvi to .avi, although this method of just renaming the file extension does not work with videos purchased with DRM to inhibit unauthorized copying). Among other software VirtualDub is able to read .gvi files and allows the user to convert them into different formats of choice. There are also privately developed software solutions, such as GVideo Fix, that can convert them to .avi format without recompression. MEncoder with "-oac copy -ovc copy" as parameters also suffices

Google Video Player
Google Video Player icon
Google Video Player main window.
The main window.
Developer: Google
Latest release: 2.0.0.060608 / 2006-08-22
OS: Mac OS X, Windows
Use: Video player
License: Freeware
Website: http://video.google.com/playerdownload

External embedding of Google Video files

Google Video allows select videos to be remotely embedded on other websites and provides the necessary HTML code alongside the media, similar to YouTube. This allows for websites to host large amounts of video remotely on Google Video without running into bandwidth or storage capacity issues.

Uploading videos

Users may choose to upload videos either through the Google Video website (limited to 100MB) or alternatively through the Google Video Uploader, available for Microsoft Windows, Mac OS X and Linux. Major producers with a thousand or more hours of video can apply for Google's Premium Program.

While the Video Uploader application is available as three separate downloads, the Linux version is written in Java, a cross-platform programming language, and will therefore also work on other operating systems, including Microsoft Windows, without modifications, providing that the Java Runtime Environment (JRE) is installed. Also worthy of note is the fact that this Java executable (.jar) file is a standalone application that does not require installation. Consequently, it can be run from removable media such as USB flash drives, CD-ROMs, or network storage. This allows users to upload video even if the computer terminal on which they are working will not allow them to install programs, such as a public library computer.

Unlike YouTube, users are provided with reports on how many views each video has received over different periods of time. Each video display not only how many views total, but how many were viewed in the previous day, and provides a chart of the past few days. YouTube does not provide any method to compute daily or views over a period of time. However, there is no user page, and these reports are not available to be viewed by other users. YouTube does report the total number of video views for each user, however, which Google Video does not. Most videos are made available for download, but there is no option to defeat this. Videos cannot be downloaded on YouTube, which must be captured on a camcorder over a video output, with player artifacts. NOTE: Although there is no option to download videos on YouTube itself, some websites, such as Keepvid.com, allow the video to be downloaded as an FLV file, by simply copying the address of the video page and entering it on the site.


Google Video

Google Video, Google tarafından işletilen, hareketli görsel görüntü arşividir.

İnternetin ilk açık video pazarı; video arayabilir, izleyebilir ya da satın alabilirsiniz. Size ait görüntüleri satabilir veya geçiçi süre için kiralanmasına izin verebilir bu şekilde gelir elde edebilirsiniz. Görüntüler Google'ın sunucularında saklanmaktadır.

İnternet TV (IPTv) konseptinin pratik uygulaması olarak da görülebilir. Bu görüntülerin bazılarını indirebilir ve Google video player ile (ya da codec ile) daha sonra izleyebilirsiniz.

Teknik codec bilgileri:

  • Divx 480 x 360 veya 480x(değişken çözünürlük)
  • Bitrate oranı saniyede 128bit (mpeg-1 ebatında mp4 sunulmaktadır şu an için)
  • Psp ve Ipod kullanılan sabit codec H.264 (*.mp4)

formatı 320x 240 veya 320x(değişken çözünürlük)

  • bitrate oranı hakkında : 1 dakkalık görüntü 5mb alan istiyor!

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