On Mon, 24 Feb 2014 19:38:46 -0500 "[email protected]"
<[email protected]> wrote:
> On Mon, Feb 24, 2014 at 6:21 PM, Manuel Braga <[email protected]>
> wrote:
> > On Mon, 24 Feb 2014 16:17:31 -0500 "[email protected]"
> > <[email protected]> wrote:
> >> Compare it to these public Dropcams. They are using a slightly
> >> better image sensor - OV5630. 500Kb/s 720P h.264 high encoding.
> >> https://www.dropcam.com/cameras/featured
> >>
> >> CPU - http://www.ambarella.com/
> >>
> >> I'd love to get that good of quality recording.
> >
> > You know who to go complain => Allwinner
> 
> What I can't tell is if the hardware is good and the software is just
> messed up, or if the hardware is fundamentally broken.
> 
> So maybe I can do an experiment. First I can save some uncompressed
> stills to assess the camera.
> 
> Second, there is uncompressed test 720P video here.
> https://media.xiph.org/video/derf/
> 
> I can feed it through the compression hardware and compare to x86
> software encoders. This works since there is no requirement to
> compress in real-time. There is no way to save real-time uncompressed
> video on the A20. It is just too fast. Would you happen to already
> have an app written that can compress the raw video?

https://github.com/patrickhwood/h264encoder
This is it, remenber NV12 format, both width and height must be a
32 multiple.


> 
> This will provide some good data for Allwinner if it show problems in
> the h264 encoder.
> 


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