qmlgloverlay: reset gl state after drawing
commit 00777d80
qt/gloverlay: reset OpenGL state after Qt drawing
Reset to the original OpenGL state as required by the OpenGL API
contract. Fixes output with a glimagesink element downstream.
commit d59fa1e8
qt/gloverlay: reset current OpenGL context after Qt
Qt may replace the drawable with its own which breaks output if Qt is
not displaying the resulting video as used with e.g. glimagesink.
Edited by Matthew Waters