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LSO ("Flash Cookies") and Media Player: Update

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Paul Clark Paul Clark | 15:21 UK time, Monday, 1 November 2010

In James Hewines' earlier post about Flash LSOs and the BBC's Media Player it was suggested that the work to remove the LSO dependency would be completed in several months time. I thought it would be useful to provide some more detail around progress towards this.

Since the last post we have been working hard to move our code base from the legacy programming language (AS2) to the new one (AS3). In doing so we've examined all of the EMP codebase and realised that we underestimated the original scale of work we had to complete. We still have the following modules of code left to port across:

CDN Redundancy (switch across, failover etc)

Robust connection routine covering multiple port and protocol combinations - rtmp, rtmpe, rtmpt, rtmpte (tunnelling for firewalls)

Javascript API work

CDN services for all supported CDNs for basic streaming

AS3 Dynamic resizing for Console

Streaming for EMP Audio

iStats reporting for AS3

Dynamic streaming for FP 10

Dynamic streaming for FP 10.1

CDN switching & fail-over completed

Security - token auth and swf verification

From having completed much of the EMP work we are now more confident about our timescales. Our best estimate is that we will have a fully transitioned and LSO free EMP by Spring 2011. As well a removing the LSO dependency the EMP will also have a new look and feel, moving to the latest BBC wide GEL (global experience language) style. I hope this provides more clarity on where we are with our transition work and the impact it has on removing our LSO dependency.

Paul Clark is Executive Product Owner Media Playout, BBC FM&T


  • Comment number 1.

    Is there any work to ensure the Flash based media player will work with alternative Flash implementations?

    I appreciate the support of DRM on alternatives might be something that can't be done but it would be nice if I could at least watch the clips on the news pages with Gnash.

  • Comment number 2.

    I note you are mentioning above dynamic streaming for FP 10 & 10.1.
    Is that anything related to the adaptive bit rate system that your EMP will be using ?

    One thing that I think may be appreciated would be; as iPlayer provides now; an option for a specific LowBandwidh. Your video clips are presumably normally about 800kbps whereas iPlayer usually has a low bandwidth option of around 500kbps.

    Such an option would help anyone with low or costly bandwidth and also those with legacy or lowpower computers.

    And thanks for posting, it is good to have updates from the BBC, even if it is to say that there are some delays, much better than just not hearing anything.

  • Comment number 3.

    Thanks for the update - be good to have another one early in the new year?

  • Comment number 4.

    This comment was removed because the moderators found it broke the house rules. Explain.


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