公开(公告)号：US10911826B1

公开(公告)日：2021-02-02

申请号：US16155767

申请日：2018-10-09

Applicant: Facebook, Inc.

Inventor： Shankar Lakshmi Regunathan ,  Minchuan Chen

IPC: H04N21/462 ,  H04N21/2365 ,  H04N21/238

Abstract: In one embodiment, a method includes receiving, from an uploading client system, a video; calculating an overall quality score for one or more encodings for the video, wherein the overall quality score of a respective encoding is based on a playback-quality score, the playback-quality score being based on a video quality or bit rate of the respective encoding; receiving, from a requesting client system, a request for the video and information associated with the request, wherein the information associated with the request comprises information about the requesting client system; determining, for the requesting client system, a first encoding based on the overall quality score of the encoding and the information associated with the request; and sending, to the requesting client system, the first encoding for display.

公开(公告)号：US20190190976A1

公开(公告)日：2019-06-20

申请号：US15849424

申请日：2017-12-20

Applicant: Facebook, Inc.

Inventor： Minchuan Chen ,  Shankar Lakshmi Regunathan ,  Sonal Gandhi ,  Yaming He ,  Amit Puntambekar ,  Michael Hamilton Coward

IPC: H04L29/06 ,  H04L29/08 ,  H04N21/485 ,  H04N21/4402 ,  H04N21/472 ,  H04N21/462 ,  G06N99/00 ,  G06F17/30

Abstract: In one embodiment, a method includes receiving multimedia content information associated with at least one segment of a multimedia content, receiving a request to view the at least one segment of the multimedia content from a client device, logging playback information associated with the viewing of the at least one segment of the multimedia content, determining a multimedia quality metric associated with the at least one segment of multimedia content based in part upon a portion of the received multimedia content information and a portion of the logged playback information, and classifying the at least one segment of the multimedia content with the multimedia quality metric.

公开(公告)号：US20210160512A1

公开(公告)日：2021-05-27

申请号：US16691571

申请日：2019-11-21

Applicant: Facebook, Inc.

Inventor： Yu Liu ,  Pankaj Sethi ,  Shankar Lakshmi Regunathan ,  Yun Zhang ,  Jae Kim ,  Qian Chen

IPC: H04N19/179 ,  H04N19/147 ,  H04N21/2365

Abstract: The disclosed computer-implemented method may include (1) receiving a video with scenes, (2) creating an encoded video having an overall bitrate by (a) determining, for each of the scenes, a rate-distortion model, (b) determining, for each of the scenes, a downsampling-distortion model, (c) using the rate-distortion models of the scenes to determine, for each of the scenes, a per-scene bitrate that satisfies the overall bitrate, (d) determining, for each of the scenes, a per-scene resolution for the scene based on the rate-distortion model of the scene and the downsampling-distortion model of the scene, and (e) creating, for each of the scenes, an encoded scene having the per-scene bitrate of the scene and the per-scene resolution of the scene, and (3) streaming the encoded video at the overall bitrate by streaming the encoded scene of one of the scenes. Various other methods, systems, and computer-readable media are also disclosed.

公开(公告)号：US10979733B1

公开(公告)日：2021-04-13

申请号：US16546603

申请日：2019-08-21

Applicant: Facebook, Inc.

Inventor： Shankar Lakshmi Regunathan ,  Haixiong Wang

IPC: H04N19/59 ,  H04N19/593 ,  H04N19/587 ,  H04N19/182

Abstract: The disclosed computer-implemented method may include encoding media content into a plurality of encoded media files, each encoded media file having an encoded resolution and at least one associated full reference metric, identifying one of the plurality of encoded media files to provide to a computing device based on at least a playback resolution of a display device included in the computing device, and weighting a measurement of a quality of the encoded media file based on the at least one associated full reference metric and on at least one characteristic associated with the display device. Various other methods, systems, and computer-readable media are also disclosed.

公开(公告)号：US10587669B2

公开(公告)日：2020-03-10

申请号：US15849424

申请日：2017-12-20

Applicant: Facebook, Inc.

Inventor： Minchuan Chen ,  Shankar Lakshmi Regunathan ,  Sonal Gandhi ,  Yaming He ,  Amit Puntambekar ,  Michael Hamilton Coward

IPC: H04L29/06 ,  H04L29/08 ,  H04N21/485 ,  H04N21/4402 ,  H04N21/462 ,  H04N21/472 ,  G06N20/00 ,  G06F16/40 ,  H04N21/414 ,  H04N21/845 ,  H04N21/234 ,  H04N19/154 ,  H04L12/58 ,  H04N19/10 ,  H04N19/146

Abstract: In one embodiment, a method includes receiving multimedia content information associated with at least one segment of a multimedia content, receiving a request to view the at least one segment of the multimedia content from a client device, logging playback information associated with the viewing of the at least one segment of the multimedia content, determining a multimedia quality metric associated with the at least one segment of multimedia content based in part upon a portion of the received multimedia content information and a portion of the logged playback information, and classifying the at least one segment of the multimedia content with the multimedia quality metric.