BIDIRECTIONAL PRESENTATION DATASTREAM USING CONTROL AND DATA PLANE CHANNELS

    公开(公告)号:WO2023279051A1

    公开(公告)日:2023-01-05

    申请号:PCT/US2022/073296

    申请日:2022-06-30

    摘要: Aspects of the disclosure provide methods and apparatuses for media processing. In some examples, an apparatus includes processing circuitry. The processing circuitry can exchange, with a server device, a plurality of control messages over a control plane channel that uses a first transport protocol. The plurality of control messages belongs to a control plane of a bidirectional protocol for immersive media distribution. The processing circuitry receives, from the server device, a first plurality of data messages over a first data plane channel that uses a second transport protocol. The first plurality of data messages belongs to a data plane of the bidirectional protocol and carries immersive media content. The processing circuitry presents the immersive media content carried by the first plurality of data messages.

    METHOD TO TRANSMIT AN AUDIO/VIDEO STREAM OF TO A DESTINATION DEVICE
    5.
    发明申请
    METHOD TO TRANSMIT AN AUDIO/VIDEO STREAM OF TO A DESTINATION DEVICE 审中-公开
    将音频/视频流传输到目标设备的方法

    公开(公告)号:WO2018078152A1

    公开(公告)日:2018-05-03

    申请号:PCT/EP2017/077736

    申请日:2017-10-30

    申请人: NAGRAVISION S.A.

    发明人: DEVALLONNÉ, Luc

    摘要: The present disclosure refers to the field of streaming media content to a client device. In the frame of the present disclosure, it is proposed a method and system to transmit an audio/video stream of to a destination device, said audio/video stream comprising a plurality first segments, each representing a first duration of video at original bit-rate, said method comprising : - receiving and decompressing by a transcoding node the audio/video stream to obtain a decompressed video stream and an audio stream, - dividing the decompressed video stream into a plurality of second segments, each segment representing a second duration of video at original bit-rate, said second duration being smaller than the first duration, - generating at least one low bit-rate version of the second segment, and compressing the at least one low bit-rate segment and the second segment, multiplexing the at least one low bit-rate segment, the second segment and the audio segment to produce a multi-bit-rate stream, transmitting the multi-bit-rate stream to at least one Network Access Point, - demultiplexing by the Network Access Point the multi-bit-rate stream to obtain the second segment and the at least one lower bit-rate segment, - receiving by the Network Access Point from the destination device a request to the audio/video stream, selecting the original bit-rate segment or one of the lower bit-rate segments, multiplexing the selected segment with the audio segment to form a multiplexed segment, transmitting the multiplexed segment to the destination device, receiving at least one acknowledgement message from the destination device that the multiplexed segment has been received, determining, by the Network Access Point, a level of completion of the multiplexed segment by the destination device, said level of completion being derived from the acknowledgment message, selecting the original bit-rate segment or one of the lower bit-rate segment based on the level of completion for the further multiplexed segment.

    摘要翻译: 本公开涉及到客户端设备的流媒体内容的领域。 在本公开的框架中,提出了一种用于将音频/视频流发送到目的地设备的方法和系统,所述音频/视频流包括多个第一段,每个段表示在原始比特位置处的第一视频持续时间, 所述方法包括: - 由代码转换节点接收音频/视频流并将其解压缩以获得解压缩的视频流和音频流; - 将解压缩的视频流划分成多个第二段,每个段表示第二持续时间 所述第二持续时间小于所述第一持续时间, - 生成所述第二分段的至少一个低比特率版本,以及压缩所述至少一个低比特率分段和所述第二分段,将所述至少一个低比特率分段和所述第二分段复用 至少一个低比特率段,所述第二段和所述音频段以产生多比特率流,将所述多比特率流发送到至少一个网络接入点, 由网络接入点将多比特率流复用以获得第二段和至少一个较低比特率段;由网络接入点从目的地设备接收对音频/视频流的请求; 原始比特率段或较低比特率段中的一个,将选定段与音频段复用以形成复用段,将复用段传输到目的地设备,从目的地设备接收至少一个确认消息, 已经接收到多路复用段,由网络接入点确定目标设备完成多路复用段的级别,所述完成级别从确认消息中导出,选择原始比特率段或其中一个 根据进一步多路复用段的完成程度降低比特率段。

    TRANSMITTING/RECEIVING AUDIO AND/OR VIDEO DATA OVER A WIRELESS NETWORK
    6.
    发明申请
    TRANSMITTING/RECEIVING AUDIO AND/OR VIDEO DATA OVER A WIRELESS NETWORK 审中-公开
    在无线网络中传输/接收音频和/或视频数据

    公开(公告)号:WO2016203185A1

    公开(公告)日:2016-12-22

    申请号:PCT/GB2015/051802

    申请日:2015-06-19

    摘要: A method of transmitting audio and/or video data to a plurality of client devices over a wireless network. The method includes, at a server: encoding a stream of audio and/or video data to provide an encoded stream of audio and/or video data for transmission over the wireless network; transmitting the encoded stream of audio and/or video data to the plurality of client devices over the wireless network; receiving, from one or more of the client devices, statistics derived from the encoded stream of audio and/or video data as received by the one or more client devices; and modifying the encoding of the stream of audio and/or video data based on the received statistics. The method may be particularly suitable for transmission of audio and/or video data to a large number of client devices in a densely packed environment.

    摘要翻译: 一种通过无线网络向多个客户端设备发送音频和/或视频数据的方法。 该方法包括在服务器处:对音频和/或视频数据流进行编码以提供用于通过无线网络传输的音频和/或视频数据的编码流; 通过无线网络将编码的音频和/或视频数据流发送到多个客户端设备; 从一个或多个客户端设备接收由所述一个或多个客户端设备接收的所述音频和/或视频数据的编码流导出的统计信息; 以及基于所接收的统计修改音频和/或视频数据流的编码。 该方法可以特别适用于将音频和/或视频数据传输到密集封装环境中的大量客户端设备。

    情報処理装置、情報処理方法、プログラム、及び、情報処理システム
    8.
    发明申请
    情報処理装置、情報処理方法、プログラム、及び、情報処理システム 审中-公开
    信息处理装置,信息处理方法,程序和信息处理系统

    公开(公告)号:WO2015178088A1

    公开(公告)日:2015-11-26

    申请号:PCT/JP2015/058348

    申请日:2015-03-19

    摘要: 【課題】撮像装置に対して複数の情報処理端末が接続される通信形態において、複数の情報処理端末からの画像の撮像に係る指示の競合を防止することが可能な情報処理装置、情報処理方法、プログラム、及び、情報処理システムを提案する。 【解決手段】あらかじめ優先度が設定された複数の外部装置のうち少なくともいずれかから、画像の撮像に係る指示を、無線の通信経路を介して受信する受信部と、前記画像を撮像するための撮像部の、前記指示に基づく動作を、当該指示の送信元である前記外部装置に設定された前記優先度に応じて制御する制御部と、を備える、情報処理装置。

    摘要翻译: [问题]提出一种信息处理装置,信息处理方法,程序和信息处理系统,其中以多个信息处理终端连接到图像捕获装置的通信方式,图像捕获 - 可以防止来自多个信息处理终端的相关指令。 解决方案信息处理设备包括:接收单元,其经由无线通信路径从预先设置有各优先级的多个外部设备中的至少一个接收图像捕获相关指令; 以及控制单元,其根据已经设置为作为指令的发送源的外部设备的优先级来控制基于该指令的图像捕获单元的图像捕获操作。

    JUST-IN-TIME DEREFERENCING OF REMOTE ELEMENTS IN DYNAMIC ADAPTIVE STREAMING OVER HYPERTEXT TRANSFER PROTOCOL
    9.
    发明申请
    JUST-IN-TIME DEREFERENCING OF REMOTE ELEMENTS IN DYNAMIC ADAPTIVE STREAMING OVER HYPERTEXT TRANSFER PROTOCOL 审中-公开
    遥感应用中动态自适应流中远程元素的时间序列

    公开(公告)号:WO2015009723A1

    公开(公告)日:2015-01-22

    申请号:PCT/US2014/046698

    申请日:2014-07-15

    摘要: A method of dereferencing by a client in a network implementing Dynamic Adaptive Streaming over Hypertext Transfer Protocol (HTTP) (DASH), the method comprising receiving a first period of streaming content containing a message instructing the client to retrieve an updated media presentation description (MPD) and containing an indicator indicating a location from which the client is to retrieve the updated MPD, retrieving the updated MPD, and dereferencing a link in the updated MPD, wherein the link indicates a location of content to be streamed in a second period of streaming content described in the updated MPD, and wherein the client performs the dereferencing at a time before an end of the first period of streaming content that is twice a length of a minimum buffer time.

    摘要翻译: 一种在网络中实现动态自适应流超文本传输​​协议(HTTP)(DASH)的网络中的客户端解引用的方法,所述方法包括接收包含指示客户机检索更新的媒体呈现描述(MPD)的消息的第一流媒体内容周期 ),并且包含指示客户端从其获取更新的MPD的位置的指示符,检索更新的MPD以及对所更新的MPD中的链接进行解引用,其中所述链接指示要在流的第二周期中流式传输的内容的位置 在更新的MPD中描述的内容,并且其中客户端在最小缓冲时间长度的两倍的流内容的第一周期结束之前的时间执行取消引用。

    MINIMAL COGNITIVE MODE FOR WIRELESS DISPLAY DEVICES
    10.
    发明申请
    MINIMAL COGNITIVE MODE FOR WIRELESS DISPLAY DEVICES 审中-公开
    无线显示设备的最小认知模式

    公开(公告)号:WO2013052887A1

    公开(公告)日:2013-04-11

    申请号:PCT/US2012/059085

    申请日:2012-10-05

    摘要: This disclosure relates to techniques for enabling a sink device in a Wireless Display (WD) system to control operation of the source device and media data sent from the source device. In one example, a method comprises establishing a communication session between a source device and at least one sink device capable of operating in a Minimal Cognitive (MC) mode, wherein the MC mode includes one or more levels, receiving a signal from the sink device to activate a particular level of the MC mode based on trigger information detected at the sink device, and sending media data to the sink device according to an altered operation of the source device for the particular level of the MC mode.

    摘要翻译: 本公开涉及使无线显示(WD)系统中的信宿设备能够控制源设备和从源设备发送的媒体数据的操作的技术。 在一个示例中,一种方法包括在源设备和能够以最小认知(MC))模式操作的至少一个宿设备之间建立通信会话,其中MC模式包括一个或多个级别,从宿设备接收信号 基于在宿设备检测到的触发信息来激活MC模式的特定级别,以及根据针对MC模式的特定级别的源设备的改变的操作将媒体数据发送到宿设备。