公开(公告)号：US20240422385A1

公开(公告)日：2024-12-19

申请号：US18740859

申请日：2024-06-12

Applicant: Tata Consultancy Services Limited

Inventor： Abhijan BHATTACHARYYA ,  Madhurima GANGULY ,  Ashis SAU ,  Suraj Kumar MAHATO ,  Balamuralidhar PURUSHOTHAMAN

IPC: H04N21/44 ,  H04N21/434 ,  H04N21/435 ,  H04N21/462

Abstract: This disclosure provides a Kalman filter based predictive jitter buffer adaptation for smooth live video streaming. In the present disclosure, at receiver of a live video steaming system, reassembly of received data packets is performed to reconstruct different types of encoded frames transmitted by a transmitter. The different types of encoded frames are Full encoded frames in basic state and Delta encoded frames. To tackle data packet loss, the receiver is also equipped with a frugal yet efficient loss handling mechanism for both basic and delta frames. To achieve smooth rendering of the live video, the receiver employs a Kalman Filter based Jitter Buffer Adaptation mechanism. The Kalman Filter based Jitter Buffer Adaptation mechanism observes variability in arrival time of the open-loop best-effort traffic and adapts a jitter-buffer based on future end-to-end delay estimates. Thus, smoothness of streaming is preserved at the receiving end augmented with robust loss-resilience.