METHOD AND APPARATUS FOR MEDIA DATA TRANSMISSION
    2.
    发明公开
    METHOD AND APPARATUS FOR MEDIA DATA TRANSMISSION 审中-公开
    方法和装置传输媒体数据

    公开(公告)号:EP2420066A1

    公开(公告)日:2012-02-22

    申请号:EP10717922.8

    申请日:2010-04-09

    Applicant: Apple Inc.

    Abstract: The present invention provides methods and apparatuses for processing readable content stored in a stream of data which contains samples for presenting a presentation at a plurality of views. In one embodiment, the first stream is stored and a second stream is derived from a first stream, where the second stream contains references to the first stream for use in selecting data, for an operating point within the content that includes the plurality of views, from the first stream. According to one aspect of the invention, references contained in stored second stream are accessed to transmit or store the data from the first stream.

    METHOD AND APPARATUS FOR STATISTICAL MULTIPLEXING
    3.
    发明公开
    METHOD AND APPARATUS FOR STATISTICAL MULTIPLEXING 有权
    方法和设备的统计复用

    公开(公告)号:EP2359602A1

    公开(公告)日:2011-08-24

    申请号:EP08875364.5

    申请日:2008-11-25

    Abstract: There is provided a method of statistically multiplexing a plurality of input video data streams into at least one output data stream having a pre-determined capacity, comprising providing a plurality of bit rate estimates at different quality levels for each input video data stream using a look-ahead encoder, summing together the bit rate estimates of the same quality level for all input video data streams, determining the picture quality of each input video data stream at which the summed bit rate estimates is equal to or less than the output data stream pre-determined capacity. There is also provided an apparatus and system for carrying out the method, and a computer readable product carrying instructions which when executed carry out the method.

    STREAM SYNCHRONIZATION FOR LIVE VIDEO ENCODING
    4.
    发明公开
    STREAM SYNCHRONIZATION FOR LIVE VIDEO ENCODING 审中-公开
    STREAM同步视频直播CODING

    公开(公告)号:EP2351372A1

    公开(公告)日:2011-08-03

    申请号:EP09749257.3

    申请日:2009-10-27

    Abstract: Methods of encoding a live video signal in a video encoding system including a plurality of video capture and encoding subsystems include providing the live video signal and an associated time code signal to the plurality of video capture and encoding subsystems, starting video capture and encoding in a first one of the subsystems at a first frame of the live video signal, starting video capture and encoding in a second one of the subsystems at a second frame of the live video signal that is later than the first frame, generating encode frame timestamps for the second frame in both the first and second video capture and encoding subsystems that are synchronized across the first and second subsystems, and associating the encode frame timestamp with the second frame in both the first and second subsystems. Related systems are also disclosed.

    PACKET SCHEDULING SYSTEM FOR DIGITAL VIDEO BROADCASTING
    5.
    发明公开
    PACKET SCHEDULING SYSTEM FOR DIGITAL VIDEO BROADCASTING 审中-公开
    分组调度系统的数字视频广播

    公开(公告)号:EP2332333A1

    公开(公告)日:2011-06-15

    申请号:EP09789269.9

    申请日:2009-09-04

    Inventor: LI, Xiaoguang

    Abstract: A system and method for processing multiple client flows to a single outbound link is provided. Specifically, a scheduler enforces a maximum symbol rate on the aggregate output flow. Inbound client flows are scheduled for output based upon individual quality of service parameters. For each round of scheduling, packets configured for a first bandwidth range are processed in a first pass and packets configured for a second bandwidth range are processed in a second pass. The packets are placed into frames before transmission. A comparison of the actual symbol usage with the estimated symbol is made and used to determine how to schedule inbound client flows for the second pass of the round.

    Method for allocating bit rates to video programs transmitted within a fixed rate channel
    8.
    发明公开
    Method for allocating bit rates to video programs transmitted within a fixed rate channel 审中-公开
    一种用于被一个信道固定速率内传送的位速率对视频节目的分配方法

    公开(公告)号:EP2239947A1

    公开(公告)日:2010-10-13

    申请号:EP09305287.6

    申请日:2009-04-06

    Applicant: Alcatel Lucent

    Abstract: The invention relates to a method for allocating bit rates to video programs (14 1 , 14 2, ...14 N ) broadcasted as groups of pictures through a transmission channel (19) having a constant transmission rate, each video program (14i) being encoded through at least one encoding parameter depending on a first smoothness measure representative of quality variations between pictures currently and/ previously transmitted within said video program (14i), characterized in that the encoding parameter also depends on:
    - A second smoothness measure representative of quality variations between future pictures to be transmitted thereafter in the same video program, and
    - At least one quality standard ensuring an encoding quality for any broadcasted video program, transmitted through the channel (19), above a determined absolute and/or relative quality threshold.

    Abstract translation: 本发明涉及一种用于分配的位速率对视频节目(14 1,14 2,... 14 N)广播通过具有恒定的传输速率的传输信道(19)的画面组,每个视频节目(14 1) 通过至少一个编码参数来进行编码根据第一平滑度量代表当前和/此前反mitted所述视频节目(14I)内的图片间的质量变化的,在没有编码参数为特征因而取决于: - 第二平滑度量代表的 将来的图片之间的质量变化为反式mitted此后在相同的视频节目,以及 - 至少一个质量标准确保编码质量对任何广播的视频节目的,反式通过所述通道(19)mitted,上述确定性开采绝对和/或相对质量阈值 ,

    METHOD AND APPARATUS FOR INSERTING DIGITAL MEDIA ADVERTISEMENTS INTO STATISTICAL MULTIPLEXED STREAMS
    10.
    发明授权
    METHOD AND APPARATUS FOR INSERTING DIGITAL MEDIA ADVERTISEMENTS INTO STATISTICAL MULTIPLEXED STREAMS 有权
    方法和装置在统计多路复用流INSERTING DIGITAL MEDIA SHOW

    公开(公告)号:EP1410646B1

    公开(公告)日:2009-08-12

    申请号:EP00972294.3

    申请日:2000-10-20

    CPC classification number: H04N21/23424 H04N21/23655 H04N21/25841 H04N21/812

    Abstract: A method and system for the insertion of local signals (165), including digital media advertisements, into statistically multiplexed streams (135) is presented. The rate control (120) and timing information is computed and is used to specify the insertion time and rate parameters for digital advertisements. In one embodiment, a maximum bit rate over the advertisement duration is specified. The maximum bit rate may be constant or may vary in time, such that high bit rate portions of the advertisement are supported. High bit rate portions of the advertisements in different program streams may be staggered, such that the total bandwidth required does not exceed a maximum, but allowing for high bit rate portions of advertisements. Custom bit rate profiles for advertisements may also be defined, with the profiles being defined at a high granularity or a low granularity.

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