This is a testharness.js-based test.
[PRECONDITION_FAILED] Verify stream compliance h26x annexb
  Unsupported config: {"codec":"avc1.42001E","avc":{"format":"annexb"},"hardwareAcceleration":"prefer-hardware","width":320,"height":200,"bitrate":1000000,"framerate":30}
Harness: the test ran to completion.