WO2023197811A1 - 视频下载、传输方法、装置、终端设备、服务器及介质 - Google Patents
视频下载、传输方法、装置、终端设备、服务器及介质 Download PDFInfo
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
- H04N21/2401—Monitoring of the client buffer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/23805—Controlling the feeding rate to the network, e.g. by controlling the video pump
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/239—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
- H04N21/2393—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/437—Interfacing the upstream path of the transmission network, e.g. for transmitting client requests to a VOD server
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44004—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video buffer management, e.g. video decoder buffer or video display buffer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/816—Monomedia components thereof involving special video data, e.g 3D video
Definitions
- Figure 9 is a structural block diagram of a video transmission device in Embodiment 5 of the present disclosure.
- Figure 4 is a flow chart of a video downloading method provided in Embodiment 2 of the present disclosure. This embodiment is adjusted based on each of the above embodiments.
- the buffer length includes the first current buffer length and the first target buffer length; generating a video data download request according to the buffer length may include: if the first current buffer length is less than the first target buffer length, Then a video data download request for downloading the target video data belonging to the first video data is generated.
- the target video data is the video data in the panoramic video stored in the server.
- the historical perspective prediction accuracy can be determined by the user perspective recording/prediction module based on the user perspective sent in real time/regularly by the user perspective acquisition module, and can also be used to predict the user perspective in future time periods.
- the download scheduling module can determine the target video to be downloaded after receiving the first target buffer length and the second target buffer length sent by the target buffer length control module, and the first current buffer length and the second current buffer length sent by the buffer zone.
- the method of this embodiment may include the following steps:
- the original video data may be unencoded video data of a certain frame of video in the panoramic video.
- the original video data is spatially cut to obtain original video sub-data.
- the video data corresponding to each small block is an original video sub-data.
- each target video sub-data can be encoded separately based on the first preset code rate, and then the respective target video sub-data can be updated according to the encoding result. data and transmit them to the client respectively.
- scalable video coding Scalable Video Coding, svc
- svc Scalable Video Coding
- FIG. 8 is a structural block diagram of a video downloading device provided in Embodiment 4 of the present disclosure.
- the device is used to execute the video downloading method provided in any of the above embodiments.
- This device has the same concept as the video downloading method in the above embodiments.
- the device can be configured on the client and can include: a buffer length acquisition module 410, a download request generation module 420, and a target video data download module 430. in,
- the video downloading device provided in Embodiment 4 of the present disclosure cooperates with the buffer length acquisition module and the download request generation module to obtain the buffer length, and generates a video file for downloading the target video data in the panoramic video stored in the server based on the buffer length.
- Video data download request the target video data may include video data associated with the first video data and/or the second video data corresponding to the buffer length; further, the video data download request is sent to the server through the target video data download module, according to The received server downloads the target video data based on the request result returned by the video data download request.
- the above-mentioned device improves the panoramic video viewing experience for video viewing users.
- FIG. 9 is a structural block diagram of a video transmission device provided by Embodiment 5 of the present disclosure.
- the device is used to execute the video transmission method provided by any of the above embodiments.
- This device has the same concept as the video transmission methods in the above embodiments.
- the device can be configured on a server that stores panoramic videos, and can include: a download request receiving module 510 and a target video data transmission module 520.
- the download request receiving module 510 is configured to receive a video data download request sent by the client.
- the video data download request includes a request generated according to the buffer length for downloading the target video data in the panoramic video.
- the target video data is the same as the first one. Association of one video data and/or second video data;
- the various units and modules included are only divided according to functional logic, but are not limited to the above divisions, as long as they can realize the corresponding functions; in addition, each unit and module is not limited to the above division.
- the specific names of the functional units are only for the convenience of distinguishing each other and are not used to limit the scope of protection of the present disclosure.
- embodiments of the present disclosure include a computer program product including a computer program carried on a non-transitory computer-readable medium, the computer program containing program code for performing the method illustrated in the flowchart.
- the computer program may be downloaded and installed from the network via communication device 509, or from storage device 508, or from ROM 502.
- the processing device 501 When the computer program is executed by the processing device 501, the above-mentioned functions defined in the method of the embodiment of the present disclosure are performed.
- the computer-readable medium mentioned above in the present disclosure may be a computer-readable signal medium or a computer-readable storage medium, or any combination of the above two.
- the computer-readable storage medium may be, for example, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or any combination thereof.
- Examples of computer readable storage media may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard drive, random access memory (RAM), read only memory (ROM), erasable programmable read only memory Memory (Erasable Programmable Read-Only Memory, EPROM) or flash memory, optical fiber, portable compact disk read-only memory (Compact Disc Read-Only Memory, CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above .
- a computer-readable storage medium may be any tangible medium that contains or stores a program for use by or in connection with an instruction execution system, apparatus, or device.
- the client and server can communicate using any currently known or future developed network protocol such as HTTP (HyperText Transfer Protocol), and can communicate with digital data in any form or medium.
- Communications e.g., communications network
- Examples of communication networks include Local Area Networks (LANs), Wide Area Networks (WANs), the Internet (e.g., the Internet), and end-to-end networks (e.g., ad hoc end-to-end networks), as well as any current network for knowledge or future research and development.
- LANs Local Area Networks
- WANs Wide Area Networks
- the Internet e.g., the Internet
- end-to-end networks e.g., ad hoc end-to-end networks
- the buffer length includes at least one of the following: the first current buffer length and the first target buffer length of the first video data corresponding to the target perspective in the panoramic video, and the second video corresponding to the user perspective
- the second current buffer length and the second target buffer length of the data, the user perspective includes the perspective of the video viewing user of the panoramic video, the coverage of the target perspective is greater than the user perspective, and the video quality of the first video data is lower than the second video data;
- a video data download request is generated according to the buffer length, where the video data download request is a request for downloading target video data in the panoramic video stored in the server, and the target video data is the same as the first video data and/or the second video. data association;
- the video data download request is sent to the server, and the target video data is downloaded according to the received request result returned by the server for the video data download request.
- each block in the flowchart or block diagram may represent a module, segment, or portion of code that contains one or more logic functions that implement the specified executable instructions.
- the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown one after another may actually execute substantially in parallel, or they may sometimes execute in the reverse order, depending on the functionality involved.
- each block of the block diagram and/or flowchart illustration, and combinations of blocks in the block diagram and/or flowchart illustration can be implemented by special purpose hardware-based systems that perform the specified functions or operations. , or can be implemented using a combination of specialized hardware and computer instructions.
- the units involved in the embodiments of the present disclosure can be implemented in software or hardware. Among them, the name of the unit does not constitute a limitation on the unit itself under certain circumstances.
- the target video data download module can also be described as "sending a video data download request to the server, and based on the received server's response to the video The request result returned by the data download request, the module for downloading the target video data.”
- exemplary types of hardware logic components include: field programmable gate array (Field Programmable Gate Array, FPGA), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), application specific standard product (Application Specific Standard Product, ASSP), system on chip (System on Chip, SOC), complex programmable logic device (Complex Programmable Logic Device, CPLD), etc.
- the user perspective of the video viewing user at the playback time is predicted again, and it is determined that the panoramic video corresponds to the again predicted user perspective and playback time and is consistent with the second video data third video data with the same video quality;
- the third video data does not include the fourth video data, it is determined that the fifth video data in the panoramic video has the same video quality as the currently buffered second video data and is spatially adjacent, and is generated for downloading based on the fifth video data.
- the video data is obtained from the video data download request of the target video data.
- Example 7 provides the method of Example 1.
- a buffer is provided in the terminal device having the client, and the buffer includes a first buffer for buffering the downloaded first video data and a second buffer for buffering the downloaded second video data;
- Example 8 provides a video transmission method, which is applied to a server that stores panoramic videos and may include:
- the original video data For the original video data that has not been encoded in the panoramic video, the original video data is spatially segmented to obtain the original video sub-data;
- the target video data downloaded by the client includes target video sub-data and/or user video sub-data.
- the above video transmission method may also include:
- the downloaded target video sub-data and the user video sub-data that overlap in spatial position are combined, and the combined target video sub-data is updated based on the combination result.
- the buffer length acquisition module is configured to acquire the buffer length, wherein the buffer length includes at least one of the following: the first current buffer length and the first target buffer length of the first video data corresponding to the target perspective in the panoramic video, and the user The second current buffer length and the second target buffer length of the second video data corresponding to the perspective, the user perspective includes the perspective of the video viewing user of the panoramic video, the coverage of the target perspective is greater than the user perspective, and the video quality of the first video data is lower than second video data;
- a download request generation module configured to generate a video data download request according to the buffer length, wherein the video data download request includes a request for downloading target video data in the panoramic video stored in the server, and the target video data is the same as the first video data. and/or second video data association;
- the first download request generating unit is configured to generate a video data download request for downloading target video data belonging to the first video data if the first current buffer length is less than the first target buffer length.
- Example 12 provides the device of Example 11, and the buffer length further includes a second current buffer length and a second target buffer length;
- Download the request generation module which can also include:
- the second current buffer length determination unit is configured to determine whether the second current buffer length is less than the second target buffer length if the first current buffer length is greater than or equal to the first target buffer length;
- the second download request generating unit is configured to generate a video data download request for downloading the target video data belonging to the second video data if the second current buffer length is less than the second target buffer length.
- Example 13 provides the device of Example 12, and the user perspective corresponding to the currently buffered second video data is the predicted video viewing user in the currently buffered second video.
- the third video data determining unit is configured to, after determining whether the second current buffer length is less than the second target buffer length, and if the second current buffer length is greater than or equal to the second target buffer length, predict the video viewing user again at playback time user perspective, and determine third video data in the panoramic video that corresponds to the re-predicted user perspective and playback time and has the same video quality as the second video data;
- the fourth download request generating unit is configured to determine a fifth video in the panoramic video that has the same video quality as the currently buffered second video data and is spatially adjacent if the third video data does not include the fourth video data. data to generate a video data download request for downloading target video data obtained based on the fifth video data.
- Example 14 provides the device of Example 10.
- the above video transmission device may also include:
- the first target buffer length determination module is configured to obtain historical bandwidth information and historical bandwidth prediction accuracy, predict the network bandwidth when downloading the target video data based on the historical bandwidth information and historical bandwidth prediction accuracy, and determine the first target buffer length based on the network bandwidth;
- the network bandwidth prediction unit is configured to predict the network bandwidth when downloading the target video data
- the second video data playback module is configured to obtain and play the corresponding second video data from the second buffer if the second video data corresponding to the current video data is buffered in the second buffer when playing the current video data in the panoramic video. the second video data;
- the first video data playing module is configured to obtain and play the first video data corresponding to the current video data from the first buffer.
- Example 17 provides a video transmission device, which is configured on a server that stores panoramic videos, and may include:
- the download request receiving module is configured to receive a video data download request sent by the client.
- the video data download request includes a request generated based on the buffer length for downloading the target video data in the panoramic video.
- the target video data is the same as the first video data. and/or second video data association;
- the buffer length includes at least one of the following: a first current buffer length and a first target buffer length of the first video data corresponding to the target perspective in the panoramic video, and a third buffer length of the second video data corresponding to the user perspective. 2.
- the current buffer length and the second target buffer length, the user's perspective includes the perspective of the video viewing user of the panoramic video, the coverage of the target perspective is greater than the user's perspective, and the video quality of the first video data is lower than the second video data.
- Example 18 provides the device of Example 17.
- the above video transmission device may also include:
- the request result return unit is configured to determine the request result corresponding to the video data download request based on the target video sub-data and/or the user video sub-data, and return the request result to the client;
- the target video data downloaded by the client includes target video sub-data and/or user video sub-data.
- the target video data transmission module may also include:
- the video sub-data combining unit is configured to, after the client downloads the target video data transmitted by the server according to the received request result, combine the downloaded target video sub-data that overlaps in spatial position with the user video sub-data, and The combined target video sub-data is updated based on the combination result.
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Abstract
Description
Claims (14)
- 一种视频下载方法,应用于客户端,所述方法包括:获取缓冲长度,其中,所述缓冲长度包括下述中的至少一个:全景视频中与目标视角对应的第一视频数据的第一当前缓冲长度和第一目标缓冲长度、以及与用户视角对应的第二视频数据的第二当前缓冲长度和第二目标缓冲长度,所述用户视角包括所述全景视频的视频观看用户的视角,所述目标视角的覆盖范围大于所述用户视角,所述第一视频数据的视频质量低于所述第二视频数据;根据所述缓冲长度生成视频数据下载请求,其中,所述视频数据下载请求是用于对存储在服务器中的所述全景视频中的目标视频数据进行下载的请求,所述目标视频数据与所述第一视频数据或所述第二视频数据中的至少一个关联;将所述视频数据下载请求发送给所述服务器,并根据接收到的所述服务器针对于所述视频数据下载请求返回的请求结果,下载所述目标视频数据。
- 根据权利要求1所述的方法,其中,所述缓冲长度包括所述第一当前缓冲长度和所述第一目标缓冲长度;所述根据所述缓冲长度生成视频数据下载请求,包括:响应于所述第一当前缓冲长度小于所述第一目标缓冲长度,生成用于下载属于所述第一视频数据的所述目标视频数据的视频数据下载请求。
- 根据权利要求2所述的方法,其中,所述缓冲长度还包括所述第二当前缓冲长度和所述第二目标缓冲长度;所述根据所述缓冲长度生成视频数据下载请求,还包括:响应于所述第一当前缓冲长度大于或是等于所述第一目标缓冲长度,确定所述第二当前缓冲长度是否小于所述第二目标缓冲长度;响应于所述第二当前缓冲长度小于所述第二目标缓冲长度,生成用于下载属于所述第二视频数据的所述目标视频数据的视频数据下载请求。
- 根据权利要求3所述的方法,其中,与当前缓冲的所述第二视频数据对应的所述用户视角是预测出的所述视频观看用户在所述当前缓冲的所述第二视频数据的播放时间时的视角,在所述确定所述第二当前缓冲长度是否小于所述第二目标缓冲长度之后,所述方法还包括:响应于所述第二当前缓冲长度大于或是等于所述第二目标缓冲长度,再次预测所述视频观看用户在所述播放时间时的所述用户视角,确定所述全景视频中与再次预测的所述用户视角和所述播放时间对应并且与所述第二视频数据的视频质量相同的第三视频数据;响应于所述第三视频数据中包括除了所述当前缓冲的所述第二视频数据之外的第四视频数据,生成用于下载基于所述第四视频数据得到的所述目标视频数据的视频数据下载请求;响应于所述第三视频数据中未包括所述第四视频数据,确定所述全景视频中与所述当前缓冲的所述第二视频数据视频质量相同并且在空间位置上相邻的第五视频数据,生成用于下载基于所述第五视频数据得到的所述目标视频数据的视频数据下载请求。
- 根据权利要求1所述的方法,还包括以下中的至少一个:获取历史带宽信息和历史带宽预测精度,并根据所述历史带宽信息和所述历史带宽预测精度预测在下载所述目标视频数据时的网络带宽,根据所述网络带宽确定所述第一目标缓冲长度;或,当所述用户视角是预测出的所述视频观看用户在观看待缓冲的所述第二视频数据时的视角时,获取历史视角预测精度,并根据所述历史视角预测精度以及所述网络带宽确定所述第二目标缓冲长度。
- 根据权利要求1所述的方法,其中,所述根据所述缓冲长度生成视频数据下载请求,包括:预测在下载所述目标视频数据时的网络带宽;根据所述缓冲长度以及所述网络带宽生成视频数据下载请求,其中,所述视频数据下载请求表示出的所述目标视频数据的目标码率与所述网络带宽有关。
- 根据权利要求1所述的方法,其中,在配置有所述客户端的终端设备内设置有缓冲区,所述缓冲区包括用于缓冲下载得到的所述第一视频数据的第一缓冲区以及用于缓冲下载得到的所述第二视频数据的第二缓冲区;在所述下载所述目标视频数据之后,还包括:将所述目标视频数据缓冲到与所述目标视频数据关联的所述缓冲区内;在播放所述全景视频中的当前视频数据时,响应于所述第二缓冲区中缓冲有与所述当前视频数据对应的所述第二视频数据,从所述第二缓冲区中获取并播放所述对应的所述第二视频数据;响应于所述第二缓冲区中未缓冲有所述与所述当前视频数据对应的所述第二视频数据,确定所述第一缓冲区中是否缓冲有与所述当前视频数据相对应的所述第一视频数据;响应于所述第一缓冲区中缓冲有与所述当前视频数据相对应的所述第一视频数据,从所述第一缓冲区中获取并且播放所述与所述当前视频数据相对应的所述第一视频数据。
- 一种视频传输方法,应用于存储有全景视频的服务器上,所述方法包括:接收客户端发送的视频数据下载请求,其中,所述视频数据下载请求包括根据缓冲长度生成的用于对所述全景视频中的目标视频数据进行下载的请求,所述目标视频数据与第一视频数据或第二视频数据中的至少一个关联;将与所述视频数据下载请求对应的请求结果返回给所述客户端,以使所述客户端根据接收到的所述请求结果下载所述服务器传输的所述目标视频数据;其中,所述缓冲长度包括下述中的至少一个:全景视频中与目标视角对应的所述第一视频数据的第一当前缓冲长度和第一目标缓冲长度、及与用户视角对应的所述第二视频数据的第二当前缓冲长度和第二目标缓冲长度,所述用户视角包括所述全景视频的视频观看用户的视角,所述目标视角的覆盖范围大于所述用户视角,所述第一视频数据的视频质量低于所述第二视频数据。
- 根据权利要求8所述的方法,还包括:针对于所述全景视频中未进行编码的原始视频数据,将所述原始视频数据进行空间切割,得到原始视频子数据;针对于所述原始视频子数据中与所述目标视角对应的目标视频子数据、及与所述用户视角对应的用户视频子数据,基于第一预设码率对所述目标视频子数据进行编码并更新,并且采用可分级视频编码的方式,基于第二预设码率对所述用户视频子数据进行编码并更新;所述将与所述视频数据下载请求对应的请求结果返回给所述客户端,包括:根据所述目标视频子数据或所述用户视频子数据中的至少一个确定与所述视频数据下载请求对应的请求结果,并将所述请求结果返回给所述客户端;所述客户端下载的所述目标视频数据包括所述目标视频子数据或所述用户视频子数据中的至少一个,在所述以使所述客户端根据接收到的所述请求结果下载所述服务器传输的所述目标视频数据之后,还包括:将下载得到的在空间位置上重叠的所述目标视频子数据和所述用户视频子数据进行组合,并基于组合结果更新进行组合的所述目标视频子数据。
- 一种视频下载装置,配置于客户端,所述装置包括:缓冲长度获取模块,设置为获取缓冲长度,其中,所述缓冲长度包括下述中的至少一个:全景视频中与目标视角对应的第一视频数据的第一当前缓冲长 度和第一目标缓冲长度、及与用户视角对应的第二视频数据的第二当前缓冲长度和第二目标缓冲长度,所述用户视角包括所述全景视频的视频观看用户的视角,所述目标视角的覆盖范围大于所述用户视角,所述第一视频数据的视频质量低于所述第二视频数据;下载请求生成模块,设置为根据所述缓冲长度生成视频数据下载请求,其中,所述视频数据下载请求包括用于对存储在服务器中的所述全景视频中的目标视频数据进行下载的请求,所述目标视频数据与所述第一视频数据或所述第二视频数据中的至少一个关联;目标视频数据下载模块,设置为将所述视频数据下载请求发送给所述服务器,并根据接收的所述服务器针对于所述视频数据下载请求返回的请求结果,下载所述目标视频数据。
- 一种视频传输装置,配置于存储有全景视频的服务器,所述装置包括:下载请求接收模块,设置为接收客户端发送的视频数据下载请求,所述视频数据下载请求包括根据缓冲长度生成的用于对所述全景视频中的目标视频数据进行下载的请求,所述目标视频数据与第一视频数据或第二视频数据中的至少一个关联;目标视频数据传输模块,设置为将与所述视频数据下载请求对应的请求结果返回给所述客户端,以使所述客户端根据接收到的所述请求结果下载所述服务器传输的所述目标视频数据;其中,所述缓冲长度包括下述中的至少一个:全景视频中与目标视角对应的所述第一视频数据的第一当前缓冲长度和第一目标缓冲长度、及与用户视角对应的所述第二视频数据的第二当前缓冲长度和第二目标缓冲长度,所述用户视角包括所述全景视频的视频观看用户的视角,所述目标视角的覆盖范围大于所述用户视角,所述第一视频数据的视频质量低于所述第二视频数据。
- 一种终端设备,包括:一个或多个处理器;存储器,设置为存储一个或多个程序;当所述一个或多个程序被所述一个或多个处理器执行,使得所述一个或多个处理器实现如权利要求1-7中任一所述的视频下载方法。
- 一种服务器,包括:一个或多个处理器;存储器,设置为存储一个或多个程序;当所述一个或多个程序被所述一个或多个处理器执行,使得所述一个或多个处理器实现如权利要求8-9中任一所述的视频传输方法。
- 一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1-7中任一所述的视频下载方法,或是如权利要求8-9中任一所述的视频传输方法。
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| CN115604584B (zh) * | 2022-09-28 | 2025-06-10 | 脸萌有限公司 | 一种视角预测方法、装置、设备和存储介质 |
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