Text overlays don't work on i.MX6 in certain pipelines

[Nicolas Dufresne]

Le mercredi 17 janvier 2018 à 01:59 -0700, Toon Heyrman a écrit :
> The element gamma in the videofilter plugins has the same issue as
> the
> textoverlay. 
> Adding a delay of 15ms in the gamma element, makes the
> annotation/filtering
> work. 

That's sounds like a missing cache flush on map. This is on the
gstreamer-imx side though, as this should be handled by the GstMemory
implementation when the buffer is mapped.

> 
> Using imxg2dtextoverlay instead of the gamma or textoverlay works
> too. 
> Only this needs RGB and I need I420 for the encoder. Conversions are
> not an
> option in the pipeline due to performance reasons.
> 
> Maybe if I modify my own annotation element(based on the gamma
> element) to
> draw with the g2d it could work. 
> But is there any example on how to draw via a videofilter element
> with the
> g2d?
> 
> 
> 
> --
> Sent from: http://gstreamer-devel.966125.n4.nabble.com/
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 195 bytes
Desc: This is a digitally signed message part
URL: <https://lists.freedesktop.org/archives/gstreamer-devel/attachments/20180117/c1c7bb1f/attachment.sig>