Sebastian Dröge aa3e64c71d compositor: Use 255 as maximum alpha instead of 256 ... 255 will easily become 0 in the blending function as they expect the maximum value to be 255. Can be reproduce with gst-launch-1.0 videotestsrc pattern=ball ! c.sink_0 \ videotestsrc pattern=snow ! c.sink_1 \ compositor name=c \ sink_0::zorder=0 sink_1::zorder=1 sink_0::crossfade-ratio=0.5 \ background=black ! \ videoconvert ! xvimagesink crossfade-ratio +/- 0.001 makes it work correctly and the same happens at e.g. 0.25, 0.75, N*0.0625 https://bugzilla.gnome.org/show_bug.cgi?id=796846		2018-07-23 18:59:33 +03:00
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compositor	compositor: Use 255 as maximum alpha instead of 256	2018-07-23 18:59:33 +03:00