[Bug 740557] videotestsrc: add ball motion based on system clock

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=740557
  GStreamer | gst-plugins-base | git

--- Comment #5 from carl at personnelware.com 2014-11-28 02:26:41 UTC ---
Added two new properties:


  motion              : For Pattern=Ball, what the ball does
                        flags: readable, writable
                        Enum "GstVideoTestSrcMotion" Default: 0, "wavy"
                           (0): wavy             - Ball waves back and forth,
up and down
                           (1): sweep            - 1 revoltion per seccond
                           (2): hsweep           - 1/2 revoltion per seccond,
then reset to top


  flip                : For Pattern=Ball, invert colors every second.
                        flags: readable, writable
                        Boolean. Default: false

wavy is the original pattern.  wavy is the best I could to to describe it.  I
am not sure it matters to describe any of these more accurately, they will be
reviewed visually.

sweep is my attempt at creating a sweep hand that rotates 1 revolution per
second.  

half-sweep may end up being more useful for my purposes. 

flip swaps foreground/background every second.


> I think time information is already in GstVideoFrame somewhere.
I tried to find this and gave up.  If you can give me a pointer to an example
I'll be happy to use it.

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