This link has been bookmarked by 18 people . It was first bookmarked on 10 Mar 2008, by Julian Elve.
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27 May 10
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23 Oct 09
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02 Aug 08
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28 Jul 08
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the iPhone's EDGE connectivity is too slow for streaming video
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the iPhone's EDGE connectivity is too slow for streaming video
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video format and bitrate
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For devices with browsers, assuming that those browsers are able to access and display the BBC iPlayer website, getting BBC iPlayer working on those devices "merely" [see below] requires us to provide audio and/or video streams in a format that is supported by the media player(s) available on that device.
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devices without browsers, it becomes necessary to create custom applications that users need to install and run on that device
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516Kbps streams (400Kbps H.264 video, 116Kbps AAC audio)
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every programme needs to be transcoded in a Flash version (for PC streaming), a WMV version (Windows PC download), MPEG2 (TV set-top box), H.264 (web browser)
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The transcoded files are then "pushed" to streaming and p2p download head-end servers, and rights management (i.e. content encryption) applied as needed. Separately, programme metadata is delivered into our database. As soon as both metadata and the first of the available media files for a given programme have been received and are confirmed (all automatically, of course) by our system, then that programme becomes available in BBC iPlaye
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19 Mar 08
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10 Mar 08
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09 Mar 08
David CorkingSo this is how the BBC did it for the smallest Macintosh so far.
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This means that every programme needs to be transcoded in a Flash version (for PC streaming), a WMV version (Windows PC download), MPEG2 (TV set-top box), H.264 (web browser), and a variety of other formats coming soon. To do this, we have a transcoding farm of over 50 rack-mount PCs, most of which are running really fast dual quad-core Xeon CPUs.
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08 Mar 08
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07 Mar 08
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