#5988 HIGH -: Theora encoding is too slow

[Zarro Boogs per Child]

#5988: Theora encoding is too slow
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           Reporter:  bemasc       |       Owner:  jg 
               Type:  enhancement  |      Status:  new
           Priority:  high         |   Milestone:     
          Component:  distro       |     Version:     
         Resolution:               |    Keywords:     
        Next_action:  never set    |    Verified:  0  
Deployment_affected:               |   Blockedby:     
           Blocking:               |  
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Changes (by sunrise1):

  * next_action:  => never set


Comment:

 (09:35:07) maikmerten: bemasc|sleep,
 http://people.xiph.org/~maikmerten/speed_example.diff provides an example
 of how to enable a very fast mode in the Theora encoder using the
 theora_control() API (09:35:50) maikmerten: bemasc|sleep, for optimal
 results use libtheora from SVN, the fastest mode in beta 1 and 2 are
 offering far worse quality (09:36:01) maikmerten: s/are/is (10:12:56)
 xiphmont: The Thusnelda encoder I'm working on will be able to offer
 faster mainline modes in a few days as well.

 (14:50:31) derf: bemasc: Also, I'd highly recommend you compile libtheora
 with a geode-aware version of gcc specifically targeting that
 architecture. (14:51:07) bemasc: derf: [http://www.tagnice.com  nike air
 yeezy shoes]I'll do that. OLPC is maintaining a patched geode-aware gcc
 for that purpose, but is avoiding recompiling most of the system.
 (14:51:41) maikmerten: ask the Gentoo people if they can do some nice
 unrolled-loops builds for yer ;) (14:51:43) derf: libtheora in general has
 a huge reliance on the compiler doing smart things for the given
 architecture. (14:51:59) bemasc: maikmerten: I run Gentoo, so my instinct
 was of course to recompile everything for the target cpu (14:52:09) derf:
 As in, compiler options can make up to a 50% difference in speed.

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Ticket URL: <http://dev.laptop.org/ticket/5988#comment:7>
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