message: Only Enable Video on Travis CI for Ubuntu 18.04, as it is inside container
diff: @@ -49,18 +49,18 @@ matrix:
  - pip install pyarrow==0.11.1
  script:
  - bazel test --show_progress=no --spawn_strategy standalone -s --verbose_failures --test_output=errors -- //tensorflow_io/... -//tensorflow_io/video:video_py_test
  - - name: "Ubuntu 18.04 Python 2.7"
  + - name: "Ubuntu 18.04 Python 2.7 (Video Only)"
  language: python
  python:
  - 2.7
  script:
  - - docker run -i -t -e PYTHON_VERSION= -e BAZEL_VERSION=0.20.0 -e BAZEL_OS=linux --rm -v $PWD:/workspace -w /workspace --net=host ubuntu:18.04 bash -x -c ".travis/python.ubuntu.18.04.sh && apt-get -y -qq install libavformat57 libavcodec57 libavutil55 libswscale4 && bazel test --spawn_strategy standalone -s --verbose_failures -- //tensorflow_io/... -//tensorflow_io/ignite:ignite_py_test"
  - - name: "Ubuntu 18.04 Python 3.6"
  + - docker run -i -t -e PYTHON_VERSION= -e BAZEL_VERSION=0.20.0 -e BAZEL_OS=linux --rm -v $PWD:/workspace -w /workspace --net=host ubuntu:18.04 bash -x -c ".travis/python.ubuntu.18.04.sh && apt-get -y -qq install libavformat57 libavcodec57 libavutil55 libswscale4 && bazel test --spawn_strategy standalone -s --verbose_failures -- //tensorflow_io/video:all"
  + - name: "Ubuntu 18.04 Python 3.6 (Video Only)"
  language: python
  python:
  - 3.6
  script:
  - - docker run -i -t -e PYTHON_VERSION=3 -e BAZEL_VERSION=0.20.0 -e BAZEL_OS=linux --rm -v $PWD:/workspace -w /workspace --net=host ubuntu:18.04 bash -x -c ".travis/python.ubuntu.18.04.sh && apt-get -y -qq install libavformat57 libavcodec57 libavutil55 libswscale4 && bazel test --spawn_strategy standalone -s --verbose_failures -- //tensorflow_io/... -//tensorflow_io/ignite:ignite_py_test"
  + - docker run -i -t -e PYTHON_VERSION=3 -e BAZEL_VERSION=0.20.0 -e BAZEL_OS=linux --rm -v $PWD:/workspace -w /workspace --net=host ubuntu:18.04 bash -x -c ".travis/python.ubuntu.18.04.sh && apt-get -y -qq install libavformat57 libavcodec57 libavutil55 libswscale4 && bazel test --spawn_strategy standalone -s --verbose_failures -- //tensorflow_io/video:all"
  - name: "Ubuntu 14.04 R 3.2"
  language: r
  r:
  