Abstract: A first portion of a video item is transmitted using a first encoding profile. The first encoding profile is a first set of one or more first video representations of the video item having first image quality characteristics. Viewer information including at least one of a viewer quantity for the video item or a viewer playback platform distribution for the video item is receiving during transmitting the video item. A second encoding profile is determined based on the at least one of the viewer quantity or the viewer playback platform distribution. The second encoding profile is a second set of one or more second video representations of the video item having second image quality characteristics. The second image quality characteristics include a selected image quality characteristic that is not included in the first image quality characteristics. A second portion of the video item is transmitted using the second encoding profile.

Abstract: Systems and methods for playing videos and video advertisements utilize background loading techniques to shorten any delay between the time that a first video finishes playing and the time that a subsequent video begins playing. These techniques can be utilized when videos are playing automatically, one after another. These techniques also can be used when videos and video advertisements are playing in an alternating fashion.

Abstract: Methods and apparatus for controlling the flow through a compressor with a valve assembly comprising a rotating body having an outer surface. The rotating body is disposed within a valve cavity in the compressor. A non-contacting seal operates to limit the flow of fluid between the outer surface of the rotating body and the valve cavity. An aperture is disposed through the rotating body. A drive assembly rotates the rotating body such that the aperture intermittently allows fluid to bypass the non-contacting seal as the rotating body is rotated.