[Bug 727886] GstVideoGLTextureUploadMeta assumes no color conversion is done during upload

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=727886
  GStreamer | gst-plugins-base | git

--- Comment #2 from George Kiagiadakis <kiagiadakis.george at gmail.com> 2014-04-09 14:22:16 UTC ---
(In reply to comment #1)
> I don't think this is true. I think this only means that if you have negotiated
> the UploadMeta caps feature, the corresponding negotiated format shall be in
> RGB, for sysmem negotiation, it should  be YUV.

As I said, I could do that (i.e. negotiate
"video/x-raw(meta:GstVideoGLTextureUploadMeta), format=RGBA"), but it feels
wrong because if any intermediate plugin tries for whatever reason to map the
buffer and read its data, it will read data in a different format. It feels
more natural to negotiate: "video/x-raw(meta:GstVideoGLTextureUploadMeta),
format=I420, uploaded-format=RGBA"

> I'm leaving to needinfo, but let us know why you can't negotiate with caps
> features.

You mean add another caps feature?

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