[MPlayer-dev-eng] Displaying an image on top of video

[Reimar Döffinger]

On Wed, Mar 13, 2013 at 03:53:23PM -0400, compn wrote:
> On Wed, 13 Mar 2013 19:43:24 +0100, Reimar Döffinger wrote:
> >On Wed, Mar 13, 2013 at 03:08:08PM -0300, Alexandre Amoedo Amorim wrote:
> >> Hello everyone,
> >> 
> >> I'm working on a project where I display videos fullscreen on an embedded
> >> linux device, without X, using VO: fbdev.
> >> There's another app on the backgroup that needs to show information over
> >> that video.
> >> 
> >> I suppose I'd neet to hack the vo_fbdev.c in order to write my
> >> image/message to the fb with every frame.
> >> 
> >> I'd appreciate any thoughts on this... Is this the way to go, or...?
> >
> >I mostly think this belongs on the -users list,
> >but look at DOCS/tech/slave.txt, in particular either
> >osd_show_text or overlay_add
> 
> probably easier than editing code or making a filter or using
> vf_overlay just to use mplayer -rootwin with a clear desktop and just
> display images on top of that , easy...

I think you missed the "without X" part...
I don't think you'd necessarily want to run X on an embedded device.
On the other hand, many embedded devices can do overlays via their
display controller, which would of course offer better performance.