Media Viewers

This add-on project for Alfresco Share provides a number of content viewers to
complement the out-of-the box set supplied with Share. It was previously named
Media Preview.

Viewers can be configured into the Web Preview component of the Document
Details Page. In addition, the add-on supplies a custom dashlet which can be
used to display any chosen document or content item on a site dashboard.

The following viewers are supplied in the v2.x add-on for use on Alfresco 4

• PdfJs displays documents, presentations and any other file capable of being
  transformed to PDF in-line in the web browser using the excellent pdf.js
  viewer, which uses the power of HTML5 to remove Share's Flash dependency for
  document viewing.

  The viewer supports a number of features not directly supported by the Flash
  document previewer, such as a sidebar with thumbnail, outline and search views,
  bookmarking of individual pages of a document, and will remember the page
  number and zoom level of previous documents that you have viewed.

  

• FLVPlayer and MP3Player display compatible audio and video files respectively, within the web-browser using the
  open source FLV Player and MP3 Player media players by neolao. Based on the
  content's MIME type, the updated component automatically chooses the appropriate
  previewer to use.

  While similar to the Flash players provided by Share out-of-the-box, these
  implementations allow advanced customization of the player via configuration and
  if FFmpeg is installed, will fire up a transformation to allow viewing
  of non-H264/FLV video and non-MP3 audio. The user is informed when conversion
  is in progress and the screen automatically updates when the content can
  be viewed.

• Embed uses an in-line iFrame to embed the content itself directly inside the
  web page. It is suitable for use with content types that can be viewed
  directly within the web browser such as plain text and PDF, with the Chrome
  or Acrobat plugins installed. Again, this can be used to avoid the use of
  the Flash previewer for some clients.
• Prettify allows formatted code, mark-up and other supported text formats
  to be displayed in directly in the document and uses the google-code-prettify
  project to provide an in-line browser-based view with syntax highlighting.

  

• WebODF is an EXPERIMENTAL viewer which uses the AGPL-licensed WebODF
  project to display ODF content directly in the web browser.

  WebODF cannot be distributed with the add-in itself, so in order to use it you must also
  download the latest JAR file from the supporting share-webodf project and
  install it in the same way as the main media-viewers JAR file.

The v0.x/1.x add-on supplies only the FLVPlayer and MP3Player add-ons and works on Alfresco 3.3/3.4.

In addition to the Share component extensions the add-on supplies repository extension configuration
for defining 'thumbnailed' content in PDF, H264/FLV and MP3 formats, a full-size image thumbnail for
video files in JPEG format, and a transformer based on FFmpeg for generating the audio and video formats.