[vlc-devel] [Patch] Sending a signal when a vout is created/destroyed

[Laurent Aimar]

Hi,

On Tue, Feb 02, 2010, Rémi Denis-Courmont wrote:
> On Tue, 2 Feb 2010 10:33:27 +0100, Hugo Beauzee-Luyssen
> <beauze.h at gmail.com> wrote:
> > In the end, is there anyway to know when a snapshot could be taken,
> > that won't be flagged as work arround or bug ?
> 
> I don't see the need to know that.
> 
> By definition, the snapshot function takes whatever picture is visible now.
> If no picture is visible, it takes nothing. This is the normal behavior.
> 
> > I'd like to avoid polling "has_vout()" as much as possible, as it's
> > definitely an ugly way of doing things, and it can lead to infinite
> > loop in case something goes wrong (e.g. no codec found, or anything
> > that can cause the vout not to be created actually...)
> 
> If the user tries to take a snapshot when there is no video, (s)he expect
> it to fail.
> I don't see any reason to poll at the programming level.

 As I already told, I do find useless to display (or to make clickable) a
snapshot button on the GUI when it is going to fail... and so it is useful
to know when there is video.

-- 
fenrir