11.3.1 development build 31 for XO-1.75

Jon Nettleton jon.nettleton at gmail.com
Thu Mar 22 12:11:17 EDT 2012

On Thu, Mar 22, 2012 at 5:02 PM, Martin Langhoff
<martin.langhoff at gmail.com> wrote:
> On Thu, Mar 22, 2012 at 11:50 AM, Gary Martin
> <garycmartin at googlemail.com> wrote:
>> No panics yet with Record (five 6min videos so far). Changing quality to high causes the video to stall after a handful of frames, but no panic, and Recored would respond to Stop even if it was beach-balling. Low quality video records fine.
> Cool. I hear Jon Nettleton has evil plans to improve our
> capture/encode performance so we can grab higher-quality video.

*laughing maniacally, and rubbing hands together*

Yes I will hatch my evil plans soon.  We have a three pronged attack

1)  Enable the vmeta dsp and hook that up to gstreamer
2)  get iWMMxT accelerated codepaths wherever possible.  Marvell
provided us with an optimized vp8 encoder and I have looked at some of
the optimizations that exist in ffmpeg to see if they can be applied
3)  Not that I am doing this, but switching to F17 and hardfp builds.
Encoding our audio is actually one of the biggest pigs, as it is all
floating point and we are doing all of that number crunching in

I will keep everyone apprised of new information as my plan unfolds.

*locks himself back in his lair located somewhere in the Danish countryside*


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