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Tag Archives: video

JPEG2000 to Zoomify Code4Lib Lightning Talk Video Now Available

Thanks, Noel, and everyone else who made the video editions of Code4Lib 2008 presentations possible. I just had a chance to notice that the video from my JPEG2000 to Zoomify Shim lightning talk was online:

Some updates since the post and the presentation were first done. The code that exists in the source code repository now was refactored to use JJ2000 as part of the Sun ImageIO package. We were seeing non-threadsafe problems with Kakadu and thought that using the multithreaded ImageIO package would help. Unfortunately, even with extensive caching, it did not. My next task is to bring Kakadu back into the picture using the threadsafe JNI implementation that is part of the ImageIO-ext project to see if that helps.

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Preserving Digital Video

My place of work is looking to acquire educational videos in a digital form with an eye towards long-term preservation. At this point we receive a physical form (preferably DVD, but sometimes VHS) and digitize it to a very lossy access format (RealMedia, in this case). With this change, we would get a preservation-worthy digital copy from the producer/distributor and forego the physical version.

There is quite a lot written on preserving video, but I wanted to distill the requirements down into statements that vendors could reasonably provide today. I think these are pretty sound requirements, but I’m looking for feedback. In particular, I’m not quite sure how to handle the transfer of closed caption text from the publisher/distributor; suggestions are welcome.

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Wireless JPEG2000 Video and a Paper on How JPEG2000 Works

Two items of recent note in the JPEG2000 world. The first is the announcement of “the world’s first fully integrated wireless HDTV” that uses JPEG2000 over the air:

The High Definition LCD TV, featuring Pulse~LINK’s integrated CWave® UWB Wireless HDMI technology, will be on display for the first time at the 2008 International Consumer Electronics Show (CES) in Las Vegas, Nevada, January 7-10. [...] With the integration of CWave® Wireless HDMI, digital display products can be mounted anywhere in the room without needing to run data cabling from the TV to the content source, such as a DVR, Blu-ray or HD DVD player, or a live cable or satellite feed. Video data is encoded using the JPEG2000 video codec, the same codec used by movie theaters for “Digital Cinema,” providing a secure high quality HD experience. Pulse-LINK’s Wireless HDMI solution is engineered to be equivalent in both content protection and visual experience to a wired HDMI connection.

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Two Lectures on Copyright and Fair Use Today

Spotted in the Chronicle of Higher Education Online this morning is mention of two lectures by Wendy Seltzer that will happen today on the topic of copyright and fair-use doctrine. Here are the summaries and hCalendar events (the latter being useful if your browser and/or RSS reader understands the hCalendar microformat markup). Long-time readers of DLTJ might remember Professor Seltzer’s battle with the NFL over the overly broad statement about use of telecasts by posting a 33-second clip the SuperBowl on YouTube, which, at the moment, is still online.

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“iTunes U” for Libraries?

A recent posting in the Chronicle of Higher Education “Wired Campus” section describes the new iTunes U portal, “a spot on the site that will collect college lectures, commencement speeches, tours, sports highlights, and promotional material, all available at no cost.” (If you have iTunes on your desktop/laptop, you can use this link to visit iTunes U in the iTunes Store.) Now, according to the Apple press release, “content from iTunes can be loaded onto an iPod® with just one click and experienced on-the-go, anytime, making learning from a lecture just as simple as enjoying music.”

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Fair Use Versus the NFL with YouTube Caught in the Middle

Here is something to keep an eye on. Via the Chronicle of Higher Education, Wendy Seltzer, a visiting assistant professor at Brooklyn Law School and Fellow at the Berkman Center for Internet & Society at Harvard Law School, is demonstrating the concept of fair use to her class by going head-to-head with the National Football League. Specifically, she posted a 30 second video snippet of the NFL’s standard copyright statement to YouTube on February 8th and waited to see what would happen.

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Update to ‘Embedded Web Video in a Standards-Compliant, Accessible, and Successful Way’

With the release of Microsoft’s Windows Media Player version 11, the Microsoft Media Server (MMS) protocol is officially no longer supported. (Except, of course, for the confusing/amusing footnote on that page that says ‘mms://’ URIs are “highly recommended” as a protocol rollover URL — only Microsoft can at the same time make something deprecated and highly recommended.) As Ryan Eby noted earlier this year, those generating ASX files for Windows Media Player need to adjust their scripts.

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Embedded Web Video in a Standards-Compliant, Accessible, and Successful Way

The word “Successful” in the title, when juxtaposed with “Standards-Compliant” and “Accessible,” should be big, bold and flashing (except that the flashing style would then go against web accessibility best practice). The goal is to embed a video clip into a web page that validates as “XHTML4.01 Transitional”, includes a Closed Captioning text track to be displayed in the web page, and could be viewed in one of three flavors: Windows Media, QuickTime, and Real. And the content being presented is about using accessible technologies in the classroom, so it had to be “right.” This task was much harder than I thought, and I’ll offer much harder than it should have been. Piecing together sources too numerous to mention, I managed to make it happen … with just a few caveats. Here, documented for all time, or at least until dltj.org goes away or the next major browser/streaming-client revision (which ever comes first) is how it can be done.

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AJAX-based Video Editing Tool

This is amazing stuff — an AJAX-based video editing tool…in your web browser! I haven’t looked at the underlying technology or it’s licensing terms (the message announcing it says that it is tied to the ‘eyespot’ service) but it may be possible to port this to a generic repository. If so, this poses some exiting possibilities for the DRC!

Editing video in your browser? Try eyespot - the AJAX video editor

April 5th, 2006

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From the Disruptive Library Technology Jester (http://dltj.org/), printed on Friday the 25th of July 2008 at 8:21:50 AM EDT (-0400). The URL to this page is http://dltj.org/tag/video/

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