[gst-devel] Videomixer bgra

[Stefan Kost]

Alex Ugarte schrieb:
> Hi all,
> I have done some changes to videomixer plugin so that it can now blend
> also BGRA frames. In the same way as "adder" element, does, the first
> sink pad determines the caps for the rest of the sink pads. The src
> pad Will have the same video format (AYUV or BGRA) with the size of
> the biggest input frame. I use cairo to blend the rgb frames; I have
> not modified the algorithm to blend AYUV. I think it is working but I
> want to do some more tests.
hi,

thanks for the changes. Could you actually put those into a gnome
bugzilla ticket. Then its easier to discuss them and we won't forget.

Stefan

>
> I send attached the source of the project. I have built it using
> cmake, so I am not sure wether the Makefile.am is correct. I have
> tried to build it inside the gst-plugins-good tree downloaded with
> git, but it asks for a version of gstreamer greater than 0.10.22, and
> I have installed 0.10.19  (in debian squeeze). Then I have compiled
> gstreamer from downloaded with git and installed it into a folder in
> my home, but hen I do not know how tell configure in
> gst-plugins-{base, good} to link against those binaries.
> So, do you have any comments or suggestions on how to setup an
> environment to build these plugins.
>
> And is there any policy on how to build tests for plugin?
>
> I hope my adds to the plugin are useful, and  any comments or
> suggestions will be appreciated. By the way, to test this I have done
> a filter that can escale the video and position it in some specified
> coordinates. I also use cairo to do these operations. Is it worth to
> integrate it with the videobox?
>
> Regards,
> Alex
>
> PS: I have done this because the ffmpegcolorspace converter does not
> keep the alpha levels when converting from BGRA to AYUV. Is this
> something known?
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