Since 1.20, gst_element_request_pad_simple is available and
gst_element_get_request_pad is marked as deprecated.
--
v4: winegstreamer: Add MFMPEG4SinkClassFactory.
mf/tests: Use h264 and aac in mp4 media sink tests.
winegstreamer: Add codec data to h264 format.
winegstreamer: Add push_event wrapper.
https://gitlab.winehq.org/wine/wine/-/merge_requests/3636