vp8enc: improve unit tests

• make test_encode_simple cope with libvpx built with CONFIG_REALTIME_ONLY. Sadly, there's no way to detect this at runtime beyond trying to set lag-in-frames to >0, pushing a buffer and catching the GST_FLOW_NOT_NEGOTIATED return.

  • fix bitrot in test_encode_simple_when_bitrate_set_to_zero.

  • port test_encode_simple to GstHarness and introduce a separate test for the lag-in-frames property.

approved this merge request

added Post release label

assigned to @gkiagia

oops, misclick

assigned to @gstreamer-merge-bot and unassigned @gkiagia

mentioned in commit meh/gst-plugins-good@8f684913

added 12 commits

• c286dda3...5dc09f44 - 11 commits from branch gstreamer:master
• 8f684913 - vp8enc: improve unit tests

Compare with previous version

merged

changed milestone to %1.19.1