[Bug 712714] Properly document how videomixing works

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=712714
  GStreamer | gst-editing-services | 1.2.0

Thibault Saunier <thibault.saunier> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |thibault.saunier at collabora.
                   |                            |com
            Summary|Being able to fix the size  |Properly document how
                   |of the output window in GES |videomixing works
                   |would be nice.              |

--- Comment #1 from Thibault Saunier <thibault.saunier at collabora.com> 2013-11-19 20:27:06 UTC ---
You can set the restriction caps on the track so that the size of the frames is
set.

Then you can also set the size and position of each source using:

ges_track_element_set_child_properties(element, "height", someheight, "width"
somewidth, "posx", the_x_position_for_videomixer, "posy",
the_y_position_for_videomixer, NULL);

Renaming the bug so that it becomes about documenting that feature.

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