公开(公告)号：US20250113046A1

公开(公告)日：2025-04-03

申请号：US18899847

申请日：2024-09-27

Applicant: Axis AB

Inventor： Malte JOHANSSON ,  Axel Jonsson ,  Mattias Pettersson

IPC: H04N19/164 ,  H04N19/176 ,  H04N19/503

Abstract: A system for handling bandwidth shortage for transmission of encoded video frames. In a sending device, a long term reference frame which indicates bandwidth shortage is created. During a first time period, the reference frame is sent to the receiving device for storage. During a subsequent second time period, bandwidth shortage is determined in the sending device, wherein the bandwidth during the second time period is insufficient if the encoded video frames are encoded according to an encoding principle used at times without bandwidth shortage. During the second time period, inter encoded frames referencing the long term reference frame are sent, wherein each frame includes encoded blocks, and at least a subset of the blocks of the inter encoded frames are empty blocks such that the bit rate of the inter encoded frames is lower or equal to the bandwidth during the second time period.