7 Maintaining Video Quality and Security


Television is like the invention of indoor plumbing. It didn't change people's habits. It just kept them inside the house.

Alfred Hitchcock

Quality and security are important for any video delivery system. Quality is a prerequisite to keeping viewers happy (and therefore paying their monthly subscription bills) and to providing advertisers and content owners with image quality complementary to their desired public images. Security is needed to keep viewers from watching content they aren't authorized to view and to prevent them from making unauthorized copies of content that only they are authorized to view.

This chapter begins with a discussion of the main factors that affect quality and how they ...

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