[vlc-devel] [PATCH] add V4L2 video_output module

Francois Cartegnie fcvlcdev at free.fr
Tue Jan 17 21:20:12 CET 2012

Le 17/01/2012 21:06, Rémi Denis-Courmont a écrit :
> That driver is non-standard, and it seems buggy. As far as I know the linux-
> media guys, it is probably never going to get merged. V4L2 video output is 
> meant to drive, well... video outputs. The analog TV out on some OMAP board is 
> an example.

The old v4l loopback was buggy. The v4l2 looks really stable for me.
We just have few lines to deal with it, and that will easily bring
features to users. In all other cases (and if forcing fails) it
fallsback on regular negociation.

>> We need in that particular case to be able to define a proper format
>> that will be mirrored by the loopback device and exposed to the client app.
> That is the client app problem. If the client app does not support the format, 
> libv4l2 can convert on the fly. That is how V4L2 is meant to work.

Supports less chroma than vlc and HAVE_LIBV4L2 is guaranteed.


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