公开(公告)号：US09582530B2

公开(公告)日：2017-02-28

申请号：US15181352

申请日：2016-06-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shaobo Zhang

IPC: G06F17/30 ,  H04L29/08

CPC classification number: G06F17/30368 ,  G06F17/30044 ,  G06F17/30056 ,  G06F17/3012 ,  G06F17/30371 ,  G06F17/30516 ,  H04L67/02

Abstract: The present invention discloses a method, an apparatus, and a system for updating a metadata file. The method include: sending a message to a server on a network side to request a metadata file corresponding to media presentation; receiving a metadata file returned by the server according to the message that requests the metadata file corresponding to the media presentation, where the metadata file includes information about duration of a part of described media presentation; determining update time of the metadata file according to the information about the duration of the part of described media presentation; and sending a request for updating the metadata file to the server according to the update time.

Abstract translation: 本发明公开了一种用于更新元数据文件的方法，装置和系统。 该方法包括：向网络侧的服务器发送消息以请求与媒体呈现相对应的元数据文件; 根据请求与所述媒体呈现相对应的所述元数据文件的消息，接收由所述服务器返回的元数据文件，其中所述元数据文件包括关于所描述的媒体呈现的一部分的持续时间的信息; 根据关于所描述的媒体呈现部分的持续时间的信息来确定元数据文件的更新时间; 并根据更新时间向服务器发送更新元数据文件的请求。

公开(公告)号：US09372863B2

公开(公告)日：2016-06-21

申请号：US13715339

申请日：2012-12-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shaobo Zhang

IPC: G06F17/30 ,  H04L29/08

CPC classification number: G06F17/30368 ,  G06F17/30044 ,  G06F17/30056 ,  G06F17/3012 ,  G06F17/30371 ,  G06F17/30516 ,  H04L67/02

Abstract: The present invention discloses a method, an apparatus, and a system for updating a metadata file. The method include: sending a message to a server on a network side to request a metadata file corresponding to media presentation; receiving a metadata file returned by the server according to the message that requests the metadata file corresponding to the media presentation, where the metadata file includes information about duration of a part of described media presentation; determining update time of the metadata file according to the information about the duration of the part of described media presentation; and sending a request for updating the metadata file to the server according to the update time.

Abstract translation: 本发明公开了一种用于更新元数据文件的方法，装置和系统。 该方法包括：向网络侧的服务器发送消息以请求与媒体呈现相对应的元数据文件; 根据请求与所述媒体呈现相对应的所述元数据文件的消息，接收由所述服务器返回的元数据文件，其中所述元数据文件包括关于所描述的媒体呈现的一部分的持续时间的信息; 根据关于所描述的媒体呈现部分的持续时间的信息来确定元数据文件的更新时间; 并根据更新时间向服务器发送更新元数据文件的请求。

公开(公告)号：US20150163047A1

公开(公告)日：2015-06-11

申请号：US14605509

申请日：2015-01-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shaobo Zhang

IPC: H04L7/00 ,  H04L29/08 ,  H04L29/06

CPC classification number: H04L7/0008 ,  H04L65/4069 ,  H04L67/02 ,  H04L67/2842 ,  H04L67/42 ,  H04W56/00

Abstract: An HTTP-based synchronization method includes obtaining a first response sent by a source server or a cache in response to an HTTP request for obtaining a file; determining a time when the first response is sent in local time at the source server, according to a value of a Date field and a value of an Age field in the first response; determining a time when the first response is sent in local time at a client, according to the client time of an event related to the first response; and determining a time offset between the source server time and the client time according to: the time when the first response is sent in local time at the source server and the time when the first response is sent in local time at the client, and setting up a synchronization relationship between the client time and the source server time.

Abstract translation: 基于HTTP的同步方法包括响应于用于获取文件的HTTP请求获得由源服务器或高速缓存发送的第一响应; 根据Date字段的值和第一个响应中Age字段的值确定在源服务器上本地时间发送第一响应的时间; 根据与第一响应相关的事件的客户端时间确定客户端在本地时间发送第一响应的时间; 以及根据源服务器本地时间发送第一响应的时间和在客户端的本地时间发送第一响应的时间，确定源服务器时间与客户端时间之间的时间偏移量，以及设置 在客户端时间和源服务器时间之间建立同步关系。

公开(公告)号：US20150074393A1

公开(公告)日：2015-03-12

申请号：US14542334

申请日：2014-11-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shaobo Zhang

IPC: H04L29/06

CPC classification number: H04L63/0435 ,  H04L9/0869 ,  H04L9/14 ,  H04L2209/60 ,  H04N21/2353 ,  H04N21/4353 ,  H04N21/6125 ,  H04N21/8456

Abstract: Some embodiments disclose a method, an apparatus, and a system for implementing media data processing. A method includes dividing media data into several data blocks and selecting a part of the several data blocks using a preset rule shared with a requester. The method also includes encrypting the selected part of the several data blocks and sending the encrypted part of the several data blocks and another unencrypted part of the several data blocks to the requester. The requester can determine the encrypted part of the several data blocks according to the preset rule.

Abstract translation: 一些实施例公开了一种用于实现媒体数据处理的方法，装置和系统。 一种方法包括将媒体数据分成若干数据块，并使用与请求者共享的预设规则来选择该数个数据块的一部分。 该方法还包括对多个数据块的所选部分进行加密，并将多个数据块的加密部分和多个数据块的另一未加密部分发送给请求者。 请求者可以根据预设规则确定几个数据块的加密部分。

公开(公告)号：US10708581B2

公开(公告)日：2020-07-07

申请号：US15071269

申请日：2016-03-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changquan Ai ,  Shaobo Zhang ,  Haitao Yang

IPC: H04N19/105 ,  H04N19/23 ,  H04N19/70 ,  H04N19/46 ,  H04N19/172 ,  H04N19/44 ,  H04N19/107

Abstract: A video frame decoding method and apparatus in order to implement efficient and fast video decoding. The method includes acquiring a target time point of a video, obtaining a frame number of a corresponding random access frame according to the target time point, obtaining a frame number of a frame that can be independently decoded, where the dependency set includes at least one dependency, and the dependency represents a correspondence between a frame number of a random access frame and a frame number of a frame that can be independently decoded, and obtaining, according to the frame number of the frame that can be independently decoded, video data of the frame that can be independently decoded, and decoding the random access frame.

公开(公告)号：US09313015B2

公开(公告)日：2016-04-12

申请号：US14605509

申请日：2015-01-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shaobo Zhang

IPC: G06F15/16 ,  H04L7/00 ,  H04W56/00 ,  H04L29/08 ,  H04L29/06

CPC classification number: H04L7/0008 ,  H04L65/4069 ,  H04L67/02 ,  H04L67/2842 ,  H04L67/42 ,  H04W56/00

Abstract: An HTTP-based synchronization method includes obtaining a first response sent by a source server or a cache in response to an HTTP request for obtaining a file; determining a time when the first response is sent in local time at the source server, according to a value of a Date field and a value of an Age field in the first response; determining a time when the first response is sent in local time at a client, according to the client time of an event related to the first response; and determining a time offset between the source server time and the client time according to: the time when the first response is sent in local time at the source server and the time when the first response is sent in local time at the client, and setting up a synchronization relationship between the client time and the source server time.

Abstract translation: 基于HTTP的同步方法包括响应于用于获取文件的HTTP请求获得由源服务器或高速缓存发送的第一响应; 根据Date字段的值和第一个响应中Age字段的值确定在源服务器上本地时间发送第一响应的时间; 根据与第一响应相关的事件的客户端时间确定客户端在本地时间发送第一响应的时间; 以及根据源服务器本地时间发送第一响应的时间和在客户端的本地时间发送第一响应的时间，确定源服务器时间与客户端时间之间的时间偏移量，以及设置 在客户端时间和源服务器时间之间建立同步关系。

公开(公告)号：US20140304297A1

公开(公告)日：2014-10-09

申请号：US14311631

申请日：2014-06-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shiguo Lian ,  Xin Wang ,  Yongliang Liu ,  Shaobo Zhang

IPC: G06F17/30

CPC classification number: G06F17/30106 ,  G06F17/30017 ,  G06F17/30283 ,  G06F17/30864 ,  G06F21/10 ,  H04L65/4084 ,  H04L67/06 ,  H04N21/25816 ,  H04N21/42684 ,  H04N21/6332 ,  H04N21/84 ,  H04N21/8456

Abstract: A method, a server, and a user terminal for providing and acquiring media content are provided. The providing method includes: receiving a file segment acquiring request sent by a user terminal, where the file segment acquiring request is generated and sent by the user terminal according to an identifier of the user terminal, and the media segment description file includes a storage address and an embedded identifier of each media file segment that is divided from media content; and providing the user terminal with a media file segment that is embedded with the identifier of the user terminal. In the technical solution of the present invention, a server no longer processes media content in real time and responds to an acquiring request of a user terminal, thereby reducing concurrent load of the server and reducing concurrent bandwidth occupied by media content distribution.

Abstract translation: 提供了一种用于提供和获取媒体内容的方法，服务器和用户终端。 提供方法包括：接收由用户终端发送的文件段获取请求，其中文件段获取请求由用户终端根据用户终端的标识符生成和发送，并且媒体段描述文件包括存储地址 以及从媒体内容分割的每个媒体文件段的嵌入标识符; 以及向用户终端提供嵌入有用户终端的标识符的媒体文件段。 在本发明的技术方案中，服务器不再实时地处理媒体内容，并响应于用户终端的获取请求，从而减少了服务器的并发负载，并降低了媒体内容分发占用的并发带宽。

公开(公告)号：US20130254418A1

公开(公告)日：2013-09-26

申请号：US13889932

申请日：2013-05-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shaobo Zhang

IPC: H04L29/06

CPC classification number: H04L65/60 ,  H04L65/4084 ,  H04L65/4092 ,  H04L65/607 ,  H04L65/80

Abstract: A method, a system, and a client for a streaming media service are disclosed. The method includes: obtaining, by a client, a media presentation description file, where the media presentation description file includes a priority level of a coding representation group of media; selecting a coding representation group according to the priority level of the coding representation group and a current network bandwidth, and selecting one coding representation from each selected coding representation group; and requesting, according to address information that is of the selected coding representation and is obtained by parsing the media presentation description file, a media segment of the coding representation from a server that is indicated by the address information.

Abstract translation: 公开了用于流媒体服务的方法，系统和客户端。 该方法包括：由客户端获取媒体呈现描述文件，其中媒体呈现描述文件包括媒体的编码表示组的优先级; 根据编码表示组的优先级和当前网络带宽选择编码表示组，并从每个选择的编码表示组中选择一个编码表示; 以及根据所选择的编码表示的地址信息，并且通过解析所述媒体呈现描述文件，从由所述地址信息指示的服务器请求所述编码表示的媒体片段。

公开(公告)号：US20130103642A1

公开(公告)日：2013-04-25

申请号：US13715339

申请日：2012-12-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shaobo Zhang

IPC: G06F17/30

CPC classification number: G06F17/30368 ,  G06F17/30044 ,  G06F17/30056 ,  G06F17/3012 ,  G06F17/30371 ,  G06F17/30516 ,  H04L67/02

Abstract: The present invention discloses a method, an apparatus, and a system for updating a metadata file. The method include: sending a message to a server on a network side to request a metadata file corresponding to media presentation; receiving a metadata file returned by the server according to the message that requests the metadata file corresponding to the media presentation, where the metadata file includes information about duration of a part of described media presentation; determining update time of the metadata file according to the information about the duration of the part of described media presentation; and sending a request for updating the metadata file to the server according to the update time.

Abstract translation: 本发明公开了一种用于更新元数据文件的方法，装置和系统。 该方法包括：向网络侧的服务器发送消息以请求与媒体呈现相对应的元数据文件; 根据请求与所述媒体呈现相对应的所述元数据文件的消息，接收由所述服务器返回的元数据文件，其中所述元数据文件包括关于所描述的媒体呈现的一部分的持续时间的信息; 根据关于所描述的媒体呈现部分的持续时间的信息来确定元数据文件的更新时间; 并根据更新时间向服务器发送更新元数据文件的请求。