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    Capturing media in synchronized fashion
    12.
    发明授权
    Capturing media in synchronized fashion 有权
    以同步方式捕捉媒体

    公开(公告)号：US08958014B2

    公开(公告)日：2015-02-17

    申请号：US14071255

    申请日：2013-11-04

    Applicant: Apple Inc.

    Inventor： Nicolas Moss ,  Gregory R. Chapman ,  John Samuel Bushell ,  Bradley Ford

    IPC: H04N9/475 ,  G11B27/10 ,  H04N21/2368 ,  H04N21/43 ,  H04N21/434 ,  H04N21/462 ,  H04N5/04 ,  H04N9/802

    CPC classification number: G11B27/10 ,  H04N5/04 ,  H04N9/802 ,  H04N21/2368 ,  H04N21/4305 ,  H04N21/4307 ,  H04N21/4341 ,  H04N21/4622

    Abstract: Techniques for synchronizing audio and video content for presentation to a user at a same rate are provided. Streams of content from two or more sources of media, each media source having an associated clock, are synchronized by a synchronizing component and processor with respect to a master clock. As well, techniques are provided for ensuring that output devices are synchronized at preview startup. That is, such techniques ensure that the output devices start playing the media at the same time as well as at the same rate.

    Abstract translation: 提供用于以相同速率同步用于呈现给用户的音频和视频内容的技术。 来自两个或更多媒体源的内容流，每个媒体源具有相关联的时钟，由同步组件和处理器相对于主时钟同步。 同样，提供了确保输出设备在预览启动时同步的技术。 也就是说，这样的技术确保输出设备同时以相同的速率开始播放媒体。

    Techniques for selecting frames for decode in media player
    13.
    发明授权
    Techniques for selecting frames for decode in media player 有权

    公开(公告)号：US10199074B2

    公开(公告)日：2019-02-05

    申请号：US15612947

    申请日：2017-06-02

    Applicant: Apple Inc.

    Inventor： Jerome Decoodt ,  John Samuel Bushell

    IPC: H04N5/92 ,  G11B27/34 ,  H04N19/44 ,  H04N21/845 ,  H04N21/4402 ,  G11B27/00 ,  H04N5/917 ,  H04N5/89 ,  H04N5/783

    Abstract: Techniques are disclosed for selecting frames for decode and display during different playback modes of a media player. Prediction dependencies may be estimated among frames from a sample table of a media item identifying dependency state among frames in the media item. Based on a playback rate of a media player, a collection of frames may be identified from the media item that have presentation times within a display refresh time of the player. A frame may be selected for decode and display during the display refresh time based on the estimated prediction dependencies. The selected frame may be decoded for display during the player display refresh time.

    Determining playability of media files with minimal downloading
    15.
    发明授权
    Determining playability of media files with minimal downloading 有权
    确定最少下载的媒体文件的播放性

    公开(公告)号：US09015276B2

    公开(公告)日：2015-04-21

    申请号：US13926742

    申请日：2013-06-25

    Applicant: Apple Inc.

    Inventor： James D. Batson ,  John Samuel Bushell ,  Eric Carlson ,  Jeremy Spencer Jones ,  Roger Pantos

    IPC: G06F15/16 ,  H04L29/06 ,  G06F17/30

    CPC classification number: H04L65/60 ,  G06F17/30017 ,  G06F17/30781 ,  G06F17/30896

    Abstract: A method is provided through which information about media files embedded in web pages is obtained from a server and analyzed to determine if the media files are playable on a device. This information may be external to the media file or may be a portion of the media file itself. The determination of whether a media file is playable by a device is made based on information obtained from the server without downloading the entirety of the media file.

    Abstract translation: 提供了一种方法，通过该方法从服务器获得关于嵌入在网页中的媒体文件的信息并进行分析，以确定媒体文件是否可在设备上播放。 该信息可以在媒体文件的外部，也可以是媒体文件本身的一部分。 基于从服务器获得的信息而不下载整个媒体文件来确定媒体文件是否可由设备播放。

    PLAYLISTS FOR REAL-TIME OR NEAR REAL-TIME STREAMING
    16.
    发明申请
    PLAYLISTS FOR REAL-TIME OR NEAR REAL-TIME STREAMING 审中-公开
    实时或实时流行的播放列表

    公开(公告)号：US20140379873A1

    公开(公告)日：2014-12-25

    申请号：US14480490

    申请日：2014-09-08

    Applicant: Apple Inc.

    Inventor： David Biderman ,  William May, JR. ,  Roger Pantos ,  James David Batson ,  John Samuel Bushell

    IPC: H04L29/06

    CPC classification number: H04L65/60 ,  H04N5/783 ,  H04N21/23439 ,  H04N21/6587 ,  H04N21/8456 ,  H04N21/8543

    Abstract: Methods, systems and machine readable storage medium for allowing playback of streaming media at playback rates of other than 1× are described. In one embodiment, a method can determine different sets of I-frames that are available before a display deadline, where each set can have a different cadence, and one of the sets can be selected for download and display to achieve playback at other than 1×. Byte range requests from a client device can be used to retrieve each of the I-frames. Other methods, system and media are also described.

    Abstract translation: 描述了用于允许以除1×之外的回放速率回放流媒体的方法，系统和机器可读存储介质。 在一个实施例中，一种方法可以在显示截止日期之前确定可用的不同的I帧集合，其中每个集合可以具有不同的节奏，并且可以选择其中一个集合进行下载和显示以实现不同于1的播放 ×。 来自客户端设备的字节范围请求可用于检索每个I帧。 还描述了其他方法，系统和介质。

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