Perceptual visual quality video chunk selection

A device comprising:

• a processing system including at least one processor;
• and
• a computer-readable medium storing instructions which, when executed by the processing system, cause the processing system to perform operations, the operations comprising:
• obtaining a selection of a designated perceptual visual quality for a video;
• selecting a video chunk from among a plurality of video chunks associated with a first time block of the video, based upon a manifest file of the video, wherein the selecting is in accordance with the designated perceptual visual quality, wherein each of the plurality of video chunks is associated with a respective perceptual visual quality, and wherein the selecting is further in accordance with an objective function:
• J(lt)=∥max(0,utRt(lt)−Ĉt)∥2+α∥Qr−Qt(lt)∥2, where ut is a control policy factor, Rt(lt) is a bitrate of a given video chunk, Ĉt is a network bandwidth, Qt(lt) is a perceptual visual quality of the given video chunk, Qr is the designated perceptual visual quality, a comprises a tunable factor, and J(lt) is a metric for the given video chunk lt, wherein a given video chunk from among the plurality of video chunks having the lowest value of the metric J(lt) is selected as the video chunk;
• obtaining the video chunk from a server;
• and
• recording the video chunk in a buffer.

A non-transitory computer-readable medium storing instructions which, when executed by a processing system including at least one processor, cause the processing system to perform operations, the operations comprising:

• obtaining a selection of a designated perceptual visual quality for a video;
• selecting a video chunk from among a plurality of video chunks associated with a first time block of the video, based upon a manifest file of the video, wherein the selecting is in accordance with the designated perceptual visual quality, wherein each of the plurality of video chunks is associated with a respective perceptual visual quality, and wherein the selecting is further in accordance with an objective function:
• J(lt)=∥max(0,utRt(lt)−Ĉt)∥2+α∥Qr−Qt(lt)∥2, where ut is a control policy factor, Rt(lt) is a bitrate of a given video chunk, Ĉt is a network bandwidth, Qt(lt) is a perceptual visual quality of the given video chunk, Qr is the designated perceptual visual quality, a comprises a tunable factor, and J(lt) is a metric for the given video chunk lt, wherein a given video chunk from among the plurality of video chunks having the lowest value of the metric J(lt) is selected as the video chunk;
• obtaining the video chunk from a server;
• and
• recording the video chunk in a buffer.