Multiple interoperability points for scalable media coding and transmission
    142.
    发明申请
    Multiple interoperability points for scalable media coding and transmission 审中-公开
    用于可扩展媒体编码和传输的多个互操作性点

    公开(公告)号:US20050254575A1

    公开(公告)日:2005-11-17

    申请号:US10844676

    申请日:2004-05-12

    Abstract: A method and device for encoding, decoding, storage and transmission of a scalable data stream to include layers having different coding properties. The method includes: producing one or more layers of the scalable data stream, wherein the layers are characterized by a coding property, and signaling the layers with the coding property such that they are readable by a decoder to determine the coding property without analyzing the scalable data stream. Also, a method of encoding, decoding, storage, and transmission of a scalable bit stream, wherein at least two scalability layers are present and each layer is characterized by a set of at least one property, such as profile, level and a set of at least one HRD/VBV parameter, that may be different from that of the entire stream, and wherein said a set of at least one property is signaled for at least one layer that is different from the entire stream, wherein signaling of said a set of at least one property may be in said scalable bit stream, in a file format container containing said scalable bit stream, or in a transmission or control protocol for transmission or control of at least one layer of said scalable bit stream.

    Abstract translation: 一种用于编码,解码,存储和传输可伸缩数据流以包括具有不同编码特性的层的方法和装置。 该方法包括:产生可伸缩数据流的一个或多个层,其中这些层的特征在于编码属性,并且以具有编码属性的层信令,使得它们可被解码器读取以确定编码属性而不分析可缩放的数据流 数据流。 而且,可缩放比特流的编码,解码,存储和传输的方法,其中存在至少两个可伸缩层,并且每个层的特征在于至少一个属性的集合,诸如简档,级别和一组 至少一个HRD / VBV参数,其可以与整个流的HRD / VBV参数不同,并且其中所述至少一个属性的集合针对不同于整个流的至少一个信号通知,其中所述一组的信令 至少一个属性可以在所述可缩放比特流中,在包含所述可缩放比特流的文件格式容器中,或在用于传输或控制所述可缩放比特流的至少一个层的传输或控制协议中。

    Parameter sets update in streaming applications
    143.
    发明申请
    Parameter sets update in streaming applications 审中-公开
    流媒体应用程序中的参数集更新

    公开(公告)号:US20050254526A1

    公开(公告)日:2005-11-17

    申请号:US10844668

    申请日:2004-05-12

    CPC classification number: H04L65/607 H04L29/06027 H04L65/608 H04N21/643

    Abstract: A system and method provide for updating a parameter set in streaming applications. The method includes receiving a first parameter set from a server device at a client device, receiving an updated parameter set having synchronization information at the client device, wherein the updated parameter set is sent from the server device using a Real Time Streaming Protocol (RTSP) method or Session Description Protocol, processing a bitstream received from the server device at the client device using the first parameter set, and processing the bitstream at the client device using the updated parameter set when the synchronization information indicates that the updated parameter set should be used. The synchronization information may include, but is not limited to, a real-time transport protocol timestamp, a normal play time timestamp, network abstraction layer unit time, and a decoding order number. The RTSP method may include, but is not limited to, a SET_PARAMETER method, a GET_PARAMETER method, a PAUSE method, a PLAY method, a OPTIONS method, a DESCRIBE method and a PING method.

    Abstract translation: 一种系统和方法提供了更新流应用中的参数集。 该方法包括:在客户端设备处从服务器设备接收第一参数集,在客户端设备处接收具有同步信息的更新参数集,其中使用实时流协议(RTSP)从服务器设备发送更新的参数集, 方法或会话描述协议,使用第一参数集处理在客户端设备处从服务器设备接收的比特流,并且当同步信息指示应当使用更新的参数集时,使用更新的参数集在客户端设备处理比特流 。 同步信息可以包括但不限于实时传输协议时间戳,正常播放时间时间戳,网络抽象层单位时间和解码顺序号。 RTSP方法可以包括但不限于SET_PARAMETER方法,GET_PARAMETER方法,PAUSE方法,PLAY方法,OPTIONS方法,DESCRIBE方法和PING方法。

    Buffer level signaling for rate adaptation in multimedia streaming
    144.
    发明申请
    Buffer level signaling for rate adaptation in multimedia streaming 审中-公开
    缓冲区信令用于多媒体流中的速率适配

    公开(公告)号:US20050254499A1

    公开(公告)日:2005-11-17

    申请号:US10901015

    申请日:2004-07-28

    Abstract: In a multimedia streaming network where a client has a receiver buffer to store a plurality of packets received from a server so as to compensate for the difference between data transmission amount by the server and data usage amount by the client, the server should be able to adapt the data transmission rate based on the status of the receiver buffer. For rate adaptation purposes, server reconstructs a list of packets in the receiver buffer based on information provided by the client. The information signaled to the server is indicative of the next unit to be decoded and the sequence number of the packet to which the next unit to be decoded belongs.

    Abstract translation: 在多媒体流网络中,客户端具有存储从服务器接收的多个分组的接收缓冲器,以补偿服务器的数据传输量与客户端的数据使用量之间的差异,服务器应能够 根据接收缓冲区的状态调整数据传输速率。 为了速率调整的目的,服务器根据客户端提供的信息重构接收缓冲区中的数据包列表。 信号通知给服务器的信息表示下一个要被解码的单元,下一个被解码的单元所属的分组的序列号。

    Reducing effects caused by transmission channel errors during a streaming session
    145.
    发明申请
    Reducing effects caused by transmission channel errors during a streaming session 审中-公开
    在流媒体会话期间减少由传输信道错误引起的影响

    公开(公告)号:US20050002337A1

    公开(公告)日:2005-01-06

    申请号:US10612401

    申请日:2003-07-01

    CPC classification number: H04L65/80 H04L1/0009 H04L29/06027

    Abstract: The invention relates to a method for streaming media from a streaming server (111) to a streaming client (101) via a transmission channel (121), wherein the method comprises reducing effects caused by transmission channel error variation by applying error resilience adaptation to the streaming media. The error resilience adaptation may comprise improving or reducing error resilience properties of a streaming content during an ongoing streaming session, through, e.g, the use of a set of pre-defined error resilience levels.

    Abstract translation: 本发明涉及一种用于经由传输信道(121)将流媒体从流服务器(111)流式传输到流客户端(101)的方法,其中所述方法包括通过将误差恢复适应性应用于传输信道误差变化 流媒体。 错误恢复能力适应可以包括通过例如使用一组预定义的错误恢复级别来改善或减少正在进行的流传输会话期间的流内容的错误恢复属性。

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