gstreamer 1.2.3

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
gst-plugins-base 1.2.3

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
gst-plugins-good 1.2.3

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
gst-plugins-bad 1.2.3

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
gst-plugins-ugly 1.2.3

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
gst-libav 1.2.3

Closes #26769.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>