[gstreamer-bugs] [Bug 576286] [videomixer] Should accept/output non-alpha streams

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-good | Ver: git

Alex Ugarte changed:

           What    |Removed                     |Added
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                 CC|                            |alexugarte at gmail.com




------- Comment #4 from Alex Ugarte  2009-03-27 19:57 UTC -------
Hi!

I have been working on a modification for videomixer, so that it also accepts
BGRA buffers. Although this is not what is requested in this "bug", i think it
could help to fix it.

This is a summary of what I have done:
*I have removed the following functions:
  gst_videomixer_fill_checker
  gst_videomixer_fill_color
  gst_videomixer_blend_ayuv_ayuv
and replace them by three functors:
  (*blend) 
  (*fill_checker)
  (*fill_color)
These functionalities are implemented in two files, one for AYUV (blend_ayuv.c)
and one for BGRA (blend_bgra.c)

*The plugin's pads now negotitate their format so that tey all have the same
format (size may be different), more or less in the sameway as audio "adder"
does. Depending on the format AYUV or BGRA functions are set to the functors.

I think it would be easy to add the functionality requested in this "bug", by
simply providing a blend_i420.c file.

However, I do not know how to proceed to submit my give all these changes to
the project. I sent a ZIP file to the mailing list, but I was redirected to
submit a bug here and I have seen this.

I have downloaded the last version from git, and included my changes there, so
I could easily submit a patch (I still have to learn a couple of things about
git :). But where should I send it?

Any instrunctions on how to preceed?


Kindly regards,
Alex


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