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    Global approach to buffering media content
    31.
    发明授权
    Global approach to buffering media content 有权

    公开(公告)号：US11770565B2

    公开(公告)日：2023-09-26

    申请号：US17466950

    申请日：2021-09-03

    Applicant: NETFLIX, INC.

    Inventor： Mark Watson

    IPC: H04N21/234 ,  H04N21/231 ,  H04N21/2387 ,  H04N21/24

    CPC classification number: H04N21/23406 ,  H04N21/231 ,  H04N21/2387 ,  H04N21/24

    Abstract: In various embodiments, a graph streaming application computes a first distance along a first potential playback path between a first playback position and a first media content block. The graph streaming application then computes a first score for the first media content block based on the first distance and a first probability associated with the first potential playback path. Similarly, the graph streaming application computes a second score for a second media content block based on a second playback position, a second potential playback path, and a second probability associated with the second potential playback path. The graph streaming application compares the first score and the second score to determine that the first media content block should be buffered by a client device. The graph streaming application then causes the first media content block to be stored in a playback buffer for subsequent playback on the client device.

    Techniques for generating per-title encoding ladders
    33.
    发明授权
    Techniques for generating per-title encoding ladders 有权

    公开(公告)号：US11750821B2

    公开(公告)日：2023-09-05

    申请号：US17174121

    申请日：2021-02-11

    Applicant: NETFLIX, INC.

    Inventor： Anush Moorthy ,  Zhi Li ,  Liwei Guo ,  Aditya Mavlankar ,  Anne Aaron

    IPC: H04N19/146 ,  H04N19/154 ,  H04N19/184 ,  H04N19/30

    CPC classification number: H04N19/146 ,  H04N19/154 ,  H04N19/184 ,  H04N19/30

    Abstract: In various embodiments, an encoding ladder application generates encoding ladders for encoding media titles. In operation, the encoding ladder application generates a first convex hull representing encoding tradeoffs between quality and bitrate when encoding a media title at a first resolution; The encoding ladder application generates a second convex hull representing encoding tradeoffs between quality and bitrate when encoding the media title at a second resolution. Based on the first convex hull and the second convex hull, the encoding ladder application generates an overall convex hull. Subsequently, the encoding ladder application generates an encoding ladder for the media title based on at least the overall convex hull and a ladder requirement. Advantageously, the tradeoffs between quality and bitrate represented by the encoding ladder are customized for the media title. Consequently, encoding inefficiencies attributable to conventional fixed-bitrate ladders can be reduced.

    Techniques for encoding a media title via multiple encoders
    35.
    发明授权
    Techniques for encoding a media title via multiple encoders 有权

    公开(公告)号：US11722720B2

    公开(公告)日：2023-08-08

    申请号：US17581480

    申请日：2022-01-21

    Applicant: NETFLIX, INC.

    Inventor： Ioannis Katsavounidis

    IPC: H04N21/2662 ,  H04N21/2343 ,  H04N21/238

    CPC classification number: H04N21/2662 ,  H04N21/23805 ,  H04N21/234309 ,  H04N21/234363

    Abstract: In various embodiments, a subsequence-based encoding application generates subsequences based on a source sequence associated with a media title. The subsequence-based encoding application then encodes both a first subsequence and a second subsequence across each of multiple configured encoders and at least one rate control value to generate, respectively, a first set of encoded subsequences and a second set of encoded subsequences. Notably, each configured encoder is associated with a combination of an encoder and a configuration, and at least two configured encoders are different from one another. Subsequently, the subsequence-based encoding application generates encoded media sequences based on the first set of encoded subsequences and the second set of encoded subsequences. Finally, the application selects a first encoded media sequence from the encoded media sequences based on a first target value for a media metric to subsequently stream to a first endpoint device during playback of the media title.

    Configurable access-based cache policy control
    37.
    发明授权
    Configurable access-based cache policy control 有权

    公开(公告)号：US11711445B2

    公开(公告)日：2023-07-25

    申请号：US17023261

    申请日：2020-09-16

    Applicant: NETFLIX, INC.

    Inventor： Christopher Newton

    IPC: G06F15/16 ,  H04L67/568 ,  H04L69/22 ,  H04L69/329 ,  H04L67/1001

    CPC classification number: H04L67/568 ,  H04L67/1001 ,  H04L69/22 ,  H04L69/329

    Abstract: Various embodiments of the present disclosure relate to a computer-implemented method of receiving a header associated with an object, where the header includes a limit value that specifies a quantity of times the object is to be served from a cache device before revalidation, and a current count value that specifies a number of times that the object has been served since a most-recent revalidation or load, receiving a request for the object from a requesting device, and upon determining that the current count value is below the limit value, serving the object to the requesting device from the cache device, or upon determining that the current count value matches the limit value, transmitting a request for revalidating the object.

    Audio transitions when streaming audiovisual media titles
    38.
    发明授权
    Audio transitions when streaming audiovisual media titles 有权

    公开(公告)号：US11700415B2

    公开(公告)日：2023-07-11

    申请号：US17746823

    申请日：2022-05-17

    Applicant: NETFLIX, INC.

    Inventor： Mark Watson

    IPC: H04N21/43 ,  G06F16/783 ,  H04N21/439 ,  G06V20/40

    CPC classification number: H04N21/4307 ,  G06F16/7834 ,  G06V20/46 ,  G06V20/49 ,  H04N21/4394

    Abstract: A playback application is configured to analyze audio frames associated with transitions between segments within a media title to identify one or more portions of extraneous audio. The playback application is configured to analyze the one or more portions of extraneous audio and then determine which of the one or more corresponding audio frames should be dropped. In doing so, the playback application can analyze a topology associated with the media title to determine whether any specific portions of extraneous audio are to be played outside of a logical ordering of audio samples set forth in the topology. These specific portions of extraneous audio are preferentially removed.

    Automated video cropping
    39.
    发明授权
    Automated video cropping 有权

    公开(公告)号：US11700404B2

    公开(公告)日：2023-07-11

    申请号：US18045790

    申请日：2022-10-11

    Applicant: Netflix, Inc.

    Inventor： Apurvakumar Dilipkumar Kansara ,  Sanford Holsapple ,  Arica Westadt ,  Kunal Bisla ,  Sameer Shah

    IPC: H04N21/4728 ,  H04N21/431 ,  H04N21/4402 ,  H04N21/485 ,  G06V20/40

    CPC classification number: H04N21/4728 ,  G06V20/46 ,  G06V20/49 ,  H04N21/4318 ,  H04N21/440272 ,  H04N21/4854 ,  H04N21/4858

    Abstract: The disclosed computer-implemented method may include receiving, as an input, segmented video scenes, where each video scene includes a specified length of video content. The method may further include scanning the video scenes to identify objects within the video scene and also determining a relative importance value for the identified objects. The relative importance value may include an indication of which objects are to be included in a cropped version of the video scene. The method may also include generating a video crop that is to be applied to the video scene such that the resulting cropped version of the video scene includes those identified objects that are to be included based on the relative importance value. The method may also include applying the generated video crop to the video scene to produce the cropped version of the video scene. Various other methods, systems, and computer-readable media are also disclosed.

    TECHNIQUES FOR COMPONENT-BASED IMAGE PREPROCESSING
    40.
    发明公开
    TECHNIQUES FOR COMPONENT-BASED IMAGE PREPROCESSING 审中-公开

    公开(公告)号：US20230186435A1

    公开(公告)日：2023-06-15

    申请号：US17551087

    申请日：2021-12-14

    Applicant: NETFLIX, INC.

    Inventor： Christos G. BAMPIS ,  Li-Heng CHEN ,  Aditya MAVLANKAR ,  Anush MOORTHY

    IPC: G06T5/00 ,  G06T7/90 ,  G06T3/40

    CPC classification number: G06T5/002 ,  G06T3/40 ,  G06T7/90 ,  G06T2207/10024 ,  G06T2207/20081

    Abstract: In various embodiments, an image preprocessing application preprocesses images. To preprocess an image, the image preprocessing application executes a trained machine learning model on first data corresponding to both the image and a first set of components of a luma-chroma color space to generate first preprocessed data. The image preprocessing application executes at least a different trained machine learning model or a non-machine learning algorithm on second data corresponding to both the image and a second set of components of the luma-chroma color space to generate second preprocessed data. Subsequently, the image preprocessing application aggregates at least the first preprocessed data and the second preprocessed data to generate a preprocessed image.

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