Patent ID: 8925027
Filing Date: 2014-12-30
Classification: H04N

Abstract:
1. A method for video distribution between a plurality of sending endpoints, each including an Endpoint Encoder Configuration Manager (EECM) and an SVC encoder, and a plurality of receiving endpoints, each including an Endpoint Decoder Configuration Manager (EDCM), involving an SVCS Encoder Configuration Manager (SECM), comprising: receiving a plurality of receiver constraints at the SECM from the EDCMs of at least two of the plurality of receiving endpoints, including a first display window size measured in units of pixels, a second display window size measured in units of pixels, and at least one other parameter; determining, based on the receiver constraints, a plurality of sender constraints in the SECM, including at least an upper bound and a lower bound for a window size measured in units of pixels, wherein the upper bound is greater than the lower bound; sending the sender constraints to the EECM of at least one sending endpoint of the plurality of sending endpoints; and changing at least one encoder parameter in the SVC encoder of the at least one sending endpoint based on the sender constraints, wherein the at least one encoder parameter comprises a picture size, the picture size is less than or equal to the upper bound for the window size and greater than or equal to the lower bound for the window size, and at least a bit rate is determined independently from the upper bound of the window size and lower bound of the window size.