公开(公告)号：US20240244224A1

公开(公告)日：2024-07-18

申请号：US18154680

申请日：2023-01-13

Applicant: NETFLIX, INC.

Inventor： Sagar Bharadwaj KALASIBAIL SEETHARAM ,  Te-Yuan HUANG ,  Renata Cruz TEIXEIRA ,  Xiaoqing ZHU

IPC: H04N19/146 ,  H04N19/105

CPC classification number: H04N19/146 ,  H04N19/105

Abstract: In various embodiments, an encoding ladder application generates encoding ladders that are used to stream media titles. The encoding ladder application generates an objective function based on a ladder configuration and a parameterized objective function. The parameterized objective function approximates a tradeoff between a quality of experience and a cost term associated with a candidate encoding ladder. The encoding ladder application generates constraints based on the ladder configuration and parameterized constraints. The encoding ladder application executes a constrained optimization algorithm on the objective function, the constraints, and encoding point metadata associated with a set of encoded videos to generate a first candidate encoding ladder for a media title.

公开(公告)号：US20240244281A1

公开(公告)日：2024-07-18

申请号：US18154709

申请日：2023-01-13

Applicant: NETFLIX, INC.

Inventor： Xiaoqing ZHU ,  Sagar Bharadwaj KALASIBAIL SEETHARAM ,  Te-Yuan HUANG ,  Kaylie Alexa KWON ,  Kyle Christopher SWANSON ,  Renata Cruz TEIXEIRA

IPC: H04N21/647 ,  H04N21/238 ,  H04N21/84

CPC classification number: H04N21/64738 ,  H04N21/238 ,  H04N21/84

Abstract: In various embodiments, a simulation evaluation application generates a first streaming header based on rungs of a first candidate encoding ladder, where each rung specifies a resolution and a bitrate of a different encoded video. The simulation evaluation application executes an adaptive bitrate algorithm on the first streaming header based on a network throughput trace to determine a first value for a metric that is relevant to quality of experience. The simulation evaluation application generates a second streaming header based on a second candidate encoding ladder. The simulation evaluation application executes the adaptive bitrate algorithm on the second streaming header based on the network throughput trace to determine a second value for the first metric. The simulation evaluation application compares the first value to the second value to determine that the first candidate encoding ladder instead of the second candidate encoding ladder should be used to stream the media title.