how remove alpha channel
Sebastian Dröge
sebastian at centricular.com
Sun Oct 26 03:15:43 PDT 2014
On Fr, 2014-10-24 at 10:39 -0700, Potoman wrote:
> Hello !
>
> I'm a little lost on the goal of "videoconvert".
>
> Does it allow to remove channel ?
>
> In fact, I have a filesrc how load a png image.
> By pngdec and imagefreeze I create a video flux with 25/1 framerate.
>
> After that, I make some snapshot of the pipe and that's work perfectly.
>
> But my caps is ARGB.
>
> I really need to have RGB caps for the end flux.
>
> I try :
>
> filesrc location=plop.png ! pngdec ! imagefreeze ! videoconvert !
> video/x-raw format=RGB ! appsink
>
> But that doesn't work !
Why does it not work? You might've made a typo in the above pipeline, it
should be
> filesrc location=plop.png ! pngdec ! imagefreeze ! videoconvert ! video/x-raw,format=RGB ! appsink
(note the comma between raw and format)
If that still does not work, please provide some more information about
what happens. Like terminal output, GStreamer debug logs, etc.
--
Sebastian Dröge, Centricular Ltd · http://www.centricular.com
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