[Bug 776927] gl: gldownload: convert GstGLMemory to GstDmaBuf

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=776927

Nicolas Dufresne (stormer) <nicolas at ndufresne.ca> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #364304|0                           |1
        is obsolete|                            |

--- Comment #59 from Nicolas Dufresne (stormer) <nicolas at ndufresne.ca> ---
Created attachment 364830
  --> https://bugzilla.gnome.org/attachment.cgi?id=364830&action=edit
gldownload: Add dmabuf exporting

This patch adds code to gldownload to export the image as a
dmabuf if requested.  The element now exposes memory:DMABuf as
a cap feature, and if it is selected, the element exports the
texture to an EGL image and then a dmabuf. It also implements a
fallback to system memory download in case the exportation failed.

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