generate a modified MPD to include the re-encoded media content segments in order to provide a substantially constant quality playback of the media content segments in the defined representation.
17. The circuitry of claim 16, further configured to communicate the modified MPD file to a client device that supports DASH.
18. The circuitry of claim 16, further configured to generate the modified MPD for a particular device type.
19. The circuitry of claim 16, wherein the network device is located in a content delivery network (CDN) or an operator network.
20. The circuitry of claim 16, further configured to identify the quality metric for the media content segments using at least one of a bitrate parameter or a quality parameter.
21. The circuitry of claim 16, further configured to replace the identified media content segments with corresponding media content segments from a different representation that are described in the MPD file to form the modified MPD file, wherein the quality metric for the corresponding media content segments is greater than the selected threshold.
22. The circuitry of claim 21, wherein the corresponding media content segments are from a substantially identical media time range in the different representation as compared to the media content segments in the defined representation.