Douglas Rushkoff expounds on his new book ‘Program or Be Programmed‘ in the Computers & Society Speaker Series at the Courant Institute NYU on Nov 3 2010.
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Video: Tim Wu ‘The Master Switch’ at Columbia Law School #netneutrality #structsep #telcom #internet
Tim Wu presents the theme of his book ‘The Master Switch: The Rise and Fall of Information Empires’ at Columbia Law School on Nov 3 2010.
WebM defines the file container structure, video and audio formats. WebM files consist of video streams compressed with the VP8 video codec and audio streams compressed with the Vorbis audio codec. The WebM file structure is based on the Matroska container.
Benefits of WebM
*Openness and innovation. A key factor in the web’s success is that its core technologies such as HTML, HTTP, and TCP/IP are open for anyone to implement and improve. With video being core to the web experience, a high-quality, open video format choice is needed. WebM is 100% free, and open-sourced under a BSD-style license.
*Optimized for the web. Serving video on the web is different from traditional broadcast and offline mediums. Existing video formats were designed to serve the needs of these mediums and do it very well. WebM is focused on addressing the unique needs of serving video on the web.
o Low computational footprint to enable playback on any device, including low-power netbooks, handhelds, tablets, etc.
o Simple container format
o Highest quality real-time video delivery
o Click and encode. Minimal codec profiles, sub-options; when possible, let the encoder make the tough choices.
For more information about WebM, see http://www.webmproject.org/
The live webcast from INET in Washington DC is below:
Twitter tag: #inetdc
April 8, 2010: In the second event of the Annenberg “Art of the Long View” series, communication professor Jonathan Taplin discusses the future of communication with Verizon CEO and chairman of the board Ivan Seidenberg.
As we know Steve Jobs and other Apple execs have recently condemned the Flash plugin as too CPU intensive for use in their products, instead suggesting everyone follow their lead in moving to h.264 playback in html5. Jan Ozer of the Streaming Learning Center has run some comparison tests as to which method uses the most cpu resources.
Only Safari and Chrome currently support html5 h.264. First thing he found was that as far as Safari in Windows goes that support is imaginary as it doesn’t work.
On Macs, however, Safari html5 showed marked superiority – 12.39% versus all the competition at 40-50%. On Windows Flash 10 had a slight lead but once he upgraded to Flash 10.1, which takes advantage of hardware acceleration, there were massive CPU savings – in chrome, for example, dropping the load to 6.3%.
Ozer quotes Anand Lai Shimpi as saying that it’s up to Apple to expose the “hooks” that would allow Flash to exploit hardware acceleration in their products.
Apple complaining about Flash being a CPU Hog while not exposing “the appropriate hooks” to enable Adobe to access hardware acceleration seems disingenous at best. To be fair to Apple, though, the iPad related timing was unfortunate, with the bulk of the development work done under the shadow of Flash Player 10.0, which didnt offer hardware acceleration other than full screen on any platform and was clearly less efficient than the HTML5-based approach Apple adopted. Now that Adobe has proven the concept on Windows, perhaps Apple will cooperate with Adobe to make hardware acceleration on the Mac, iPad and future devices happen. If they choose not to, however, they should quit pointing fingers at Flash.
What else? We also learned that not all HTML5 browsers/H.264 decoders are created equal. Significantly, with Flash 10.1 deployed, Googles HTML5 implementation required the most CPU horsepower of all playback scenarios — by far — on the Windows platform. On the Mac, Firefox and Safari with Flash required less CPU horsepower than Chromes HTML5 implementation.At least from a CPU utilization perspective, Flash isnt BAD and HTML5 isnt GOOD. It all depends upon the platform and implementation
On his recent visit to NYC Matt Mullenweg, founder of Automattic and WordPress, talks at SVA about the universals he’s learned in starting WordPress:
“A universal I’ve found is that the more I’ve given away, the more I’ve gotten back.”