INFORMATION PROCESSING APPARATUS AND INFORMATION PROCESSING METHOD

    公开(公告)号:US20190014358A1

    公开(公告)日:2019-01-10

    申请号:US16067468

    申请日:2017-01-30

    Abstract: There is provided an information processing apparatus and an information processing method that enable efficient transmission of an initialization file of a content possessing a predetermined attribute among a plurality of attributes. An http client transmits an MPD request including a push-init-segment command to request a delivery server to transmit an MPD file that manages a motion video content possessing a plurality of attributes and an initialization segment file of the motion video content possessing a predetermined attribute among the plurality of attributes. The present disclosure can be applied to a reproduction client in an information processing system configured by, for example, connecting the delivery server to the reproduction client via a network, or the like.

    DELIVERY APPARATUS, DELIVERY METHOD, AND PROGRAM

    公开(公告)号:US20210021659A1

    公开(公告)日:2021-01-21

    申请号:US17043233

    申请日:2019-03-22

    Abstract: There is provided a delivery apparatus, a delivery method, and a program that are capable of providing live delivery with lower delay. Based on a URL specified by a request from a client regarded as a destination to which a content is live-delivered by using MPEG-DASH, DASH segments included in content are delivered. An extended function of independently specifying a duration of DASH segments and a placement of an SAP is used to define the URL so as to make a request for a whole of a segment sequence including a series of DASH segments consecutively arranged. Further, the URL is defined so as to make a request for a predetermined number of DASH segments from a random access point, including a random-accessible DASH segment and subsequent DASH segments in the same segment sequence. The present technology is applicable, for example, to a content delivery system that provides live delivery by using MPEG-DASH.

    DISTRIBUTION DEVICE, DISTRIBUTION METHOD, RECEPTION DEVICE, RECEPTION METHOD, PROGRAM, AND CONTENT DISTRIBUTION SYSTEM

    公开(公告)号:US20190182550A1

    公开(公告)日:2019-06-13

    申请号:US16328542

    申请日:2017-08-17

    Abstract: A distribution device includes a segment filing unit configured to make a video stream of each of areas obtained by imaging an imaging range divided into plural of the areas into a segment file, a distribution unit configured to supply the segment file of the video stream of each of the areas to a reception side by at least one of net distribution or broadcast distribution, and a notification unit configured to notify, in a case an ROI including one or more of the areas is set to the imaging range, the reception side of an ROI identifier for identifying the belonging ROI as attribute information related to the segment file corresponding to the area included in the ROI. The device can be applied to streaming distribution using DASH and enables signaling of an ROI identifier of a video distributed by at least one of broadcast distribution or net distribution.

    RECEPTION APPARATUS, RECEPTION METHOD, AND TRANSMISSION APPARATUS

    公开(公告)号:US20190028757A1

    公开(公告)日:2019-01-24

    申请号:US16070815

    申请日:2017-01-17

    Abstract: An object is to make it possible to perform caption display satisfactorily in a case where the caption display position is designated as a relative position.The video stream is decoded to obtain video data, and the subtitle stream including the caption information is decoded to obtain bitmap data of the caption. The caption display position in the caption display position information included in the caption information is designated as a relative position with respect to the caption display range. In a case where the aspect ratio of the video area is different from the aspect ratio of the display video area, the caption display position is determined with the display video area defined as the caption display range, further resize processing is performed, and the display position control is performed onto the bitmap data of the caption on the basis of the caption display position that has undergone the resize processing. Bitmap data of the caption that has undergone display position control is superimposed on the video data to obtain display video data.

    CONTENT PRESENTATION SYSTEM AND CONTENT PRESENTATION METHOD, AND PROGRAM

    公开(公告)号:US20200053411A1

    公开(公告)日:2020-02-13

    申请号:US16486020

    申请日:2018-03-14

    Abstract: The present disclosure relates to a content presentation system, a content presentation method, and a program which are capable of optimizing and streamlining allocation of a plurality of transport media. A content delivery apparatus delivers content to a client that reproduces the content using a plurality of networks with different transport characteristics. A content providing apparatus provides the content delivery apparatus with a policy serving as a determination criterion when delivery of each of streams is distributed by the plurality of networks when the content constituted by a plurality of streams with different characteristics. The present technology can be applied to, for example, a content presentation system that provides content using MPEG DASH.

    TRANSMISSION APPARATUS, TRANSMISSION METHOD, RECEPTION APPARATUS, AND RECEPTION METHOD

    公开(公告)号:US20190028773A1

    公开(公告)日:2019-01-24

    申请号:US16068825

    申请日:2017-01-17

    Abstract: To enhance transmission efficiency in partially adding or changing subtitle display, for example.A document of subtitle text information with display timing information is divided into a plurality of pieces. A plurality of packets having each divided piece arranged in a payload are generated. The plurality of packets are sequentially transmitted. For example, packet type information corresponding to an attribute of a divided piece arranged in the payload of a packet is arranged in the header of the packet. Further, for example, when a divided piece arranged in the payload of a packet is subtitle information to be displayed in a predetermined region, identification information indicating the predetermined region is arranged in the header of the packet.

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