Westerman, Hattori, Daniels & Adrian, LLP
Adaptive control of layer count of layered media stream
A technique is disclosed of controlling a layer count of actual layers within a layered media stream having a maximum number “M” of layers that include “m(0≦m≦M)” video layers and an audio layer. The technique includes: receiving from at least one destination a quality event indicative of audio quality of the audio layer; calculating an estimated value of subjective quality of the received audio layer, based on the received quality event; calculating a quality value indicative of transmission quality of the media stream, based on the calculated subjective quality, and a ratio of a layer count “m” of at least one of the video layers, to the maximum number “M;” and, based on the calculated quality value, controlling a layer count of actual layers within the media stream.
KDDI Corporation
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Hajime Hideaki
Nakamura Yamada