Patent ID: 9538137
Date: 2017-01-03
CPC Classifications: H04N

Claim:
1. One or more computer-readable media storing computer-executable instructions for causing a node of a system configured for videoconferencing or other real-time communication, when programmed thereby, to perform bitstream modification operations comprising: receiving, at the node of the system, an incoming bitstream of encoded video organized according to a given codec standard or format, the incoming bitstream having multiple temporal layers; at the node of the system, processing the incoming bitstream to produce an outgoing bitstream of encoded video organized according to the given codec standard or format, the outgoing bitstream having a single temporal layer, wherein the processing includes converting the multiple temporal layers into the single temporal layer, and wherein the converting includes changing at least one syntax element between the incoming bitstream and the outgoing bitstream so as to mitigate picture loss effects during decoding of the outgoing bitstream under lossy delivery conditions; and outputting, from the node of the system, the outgoing bitstream.