shared_ptr<ImageContent> contentA (new ImageContent (film, "test/data/simple_testcard_640x480.png"));
shared_ptr<ImageContent> contentB (new ImageContent (film, "test/data/simple_testcard_640x480.png"));
shared_ptr<ImageContent> contentA (new ImageContent (film, "test/data/simple_testcard_640x480.png"));
shared_ptr<ImageContent> contentB (new ImageContent (film, "test/data/simple_testcard_640x480.png"));