[st-ericsson] v4l2 vs omx for camera

[Clark, Rob]

On Thu, Feb 24, 2011 at 2:19 PM, Edward Hervey <bilboed at gmail.com> wrote:
>
>  What *needs* to be solved is an API for data allocation/passing at the
> kernel level which v4l2,omx,X,GL,vdpau,vaapi,... can use and that
> userspace (like GStreamer) can pass around, monitor and know about.

yes yes yes yes!!

vaapi/vdpau is half way there, as they cover sharing buffers with
X/GL..  but sadly they ignore camera.  There are a few other
inconveniences with vaapi and possibly vdpau.. at least we'd prefer to
have an API the covered decoding config data like SPS/PPS and not just
slice data since config data NALU's are already decoded by our
accelerators..

>  That is a *massive* challenge on its own. The choice of using
> GStreamer or not ... is what you want to do once that challenge is
> solved.
>
>  Regards,
>
>    Edward
>
> P.S. GStreamer for Android already works :
> http://www.elinux.org/images/a/a4/Android_and_Gstreamer.ppt
>

yeah, I'm aware of that.. someone please convince google to pick it up
and drop stagefright so we can only worry about a single framework
between android and linux  (and then I look forward to playing with
pitivi on an android phone :-))

BR,
-R

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