[vlc-devel] [PATCH 11/14] vout: lock picture pool when restarting vout thread

Rémi Denis-Courmont remi at remlab.net
Thu Sep 11 22:49:30 CEST 2014

Le jeudi 11 septembre 2014, 22:01:18 Felix Abecassis a écrit :
> I think we can also implement this with vout display events, like what
> Of course this only works for vout that can invalidate their pictures...

Yes, changing a video format parameter dynamically independent of the decoder 
intrinsically requires that the picture buffers do not depend on the parameter.

There are only two ways to achieve that:
- the video output plugin can handle the dynamically parameter internally, or
- the video output plugin declares invalid pictures and effectively renders 
indirectly always.

I would find this performance regression unacceptable for even rotation or 
colour space. It is obviously totally unacceptable for a feature as 
confidential as stereo video.

Rémi Denis-Courmont

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