watching movies. Downsize to save battery?

Discussion in 'MacBook Air' started by Bottomsup, Jun 8, 2011.

  1. Bottomsup macrumors regular

    May 10, 2011

    i'm about to take a trip and have some HD movies on disk i want to watch. Is it worth my time to re-encode them to the resolution of the MBA to save battery power decoding them since the extra resolution is wasted anyway on this little screen?

    If not I'm just going to load them up and go.

  2. amarcus macrumors 6502

    Feb 26, 2008
    London, UK
    Downsizing the videos generally won't gain you an appreciable increase in battery life. Having said that, re-encoding your videos can still be useful if the videos were previously in a format that is not accelerated by the GPU (but presumably after encoding will be). When your playing the videos if you have high CPU usage then it's safe to assume that they are not GPU accelerated and therefore could benefit from re-encoding.

  3. Ridley macrumors regular

    Mar 28, 2011
    What encoding and player is GPU accelerated like this?
  4. jdechko macrumors 68040

    Jul 1, 2004
    H.264 is accelerated in iTunes/QuickTime on Rev B, C, and D MacBook Airs (the models with the 9400M or 320M).

    Handbrake can handle the conversion for you.

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