CN110996137B - Video processing method and device - Google Patents
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- 238000010586 diagram Methods 0.000 description 12
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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
- H04N21/239—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
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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]
- H04N21/40—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
- H04N21/4402—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 reformatting operations of video signals for household redistribution, storage or real-time display
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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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8106—Monomedia components thereof involving special audio data, e.g. different tracks for different languages
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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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8126—Monomedia components thereof involving additional data, e.g. news, sports, stocks, weather forecasts
- H04N21/8133—Monomedia components thereof involving additional data, e.g. news, sports, stocks, weather forecasts specifically related to the content, e.g. biography of the actors in a movie, detailed information about an article seen in a video program
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Abstract
The invention provides a video processing method and a video processing device, wherein the method comprises the following steps: receiving a playing request message for playing a video initiated by a client, wherein the playing request message carries a video identifier of the video to be played; acquiring configuration information of the video to be played according to the playing request message, wherein the configuration information is used for indicating the data type or the data type combination of the video to be played; acquiring target data of the video to be played, which is matched with the video identifier and the configuration information, from data of different data types of independently stored videos; the target data is returned to the client, so that the problem that the video transmission cannot be adjusted according to the actual condition of the client due to the fact that all video data are transmitted in the related technology can be solved, the video playing effect is poor, the transmission content of the video is adjusted according to the configuration condition of the client, and the video playing effect is improved.
Description
Technical Field
The invention relates to the field of image processing, in particular to a video processing method and device.
Background
The current monitoring devices (e.g., DVR, NVR, etc.) generally decode video data, and often the video data carries a lot of other information, such as: video information, audio information, metadata information, private information, and the like.
The related art cannot solve the problem that video data is separated, transmitted or all video data (including audio, metadata, private data and the like).
Aiming at the problem that the transmission of the video cannot be adjusted according to the actual condition of the client side due to the fact that all video data are transmitted in the related technology, and the video playing effect is poor, a solution is not provided.
Disclosure of Invention
The embodiment of the invention provides a video processing method and a video processing device, which are used for at least solving the problem that the transmission of a video cannot be adjusted according to the actual condition of a client side because all video data are transmitted in the related technology, so that the video playing effect is poor.
According to an embodiment of the present invention, there is provided a video processing method including:
receiving a playing request message for playing a video initiated by a client, wherein the playing request message carries a video identifier of the video to be played;
acquiring configuration information of the video to be played according to the playing request message, wherein the configuration information is used for indicating the data type or the data type combination of the video to be played;
acquiring target data of the video to be played, which is matched with the video identifier and the configuration information, from data of different data types of independently stored videos;
and returning the target data to the client.
Optionally, before receiving a client-initiated play request message for playing a video, the method further includes:
the captured video is separated into the following data types: video data, audio data, metadata, private data;
and independently storing the separated videos, wherein the data of each data type of the separated videos are associated through video identification.
Optionally, the obtaining, from data of different data types of independently stored videos, target data of the video to be played, which is matched with the video identifier and the configuration information, includes:
acquiring data of all data types associated with the video identification from data of different data types of the independently stored video;
and acquiring target data corresponding to the data type or the data type combination of the video to be played indicated by the configuration information from the data of all the data types associated with the video identifier.
Optionally, returning the target video to the client comprises:
combining the acquired data of multiple data types under the condition that the configuration information is the data type combination;
and sending the combined data to the client for the client to arrange and decode the combined data.
Optionally, the obtaining the configuration information of the video according to the play request message includes:
acquiring hardware information and/or network signal intensity of a client;
and determining the configuration information of the video corresponding to the hardware information and/or the network signal strength according to the corresponding relation between the pre-stored hardware information and/or the network signal strength grade and the configuration information.
Optionally, the obtaining the configuration information of the video according to the play request message includes:
configuration information generated through interactive operation on the client is obtained.
According to another embodiment of the present invention, there is also provided a video processing apparatus including:
the receiving module is used for receiving a playing request message for playing a video initiated by a client, wherein the playing request message carries a video identifier of the video to be played;
a first obtaining module, configured to obtain configuration information of the video to be played according to the play request message, where the configuration information is used to indicate a data type or a data type combination of the video to be played;
the second acquisition module is used for acquiring target data of the video to be played, which is matched with the video identifier and the configuration information, from data of different data types of independently stored videos;
and the return module is used for returning the target data to the client.
Optionally, the apparatus further comprises:
the captured video is separated into the following data types: video data, audio data, metadata, private data;
and independently storing the separated videos, wherein the data of each data type of the separated videos are associated through video identification.
Optionally, the second obtaining module includes:
a first obtaining unit, configured to obtain data of all data types associated with the video identifier from data of different data types of the independently stored video;
and a second obtaining unit, configured to obtain, from data of all data types associated with the video identifier, target data corresponding to the data type or the data type combination of the video to be played, indicated by the configuration information.
Optionally, the return module comprises:
the combination unit is used for combining the acquired data of the multiple data types under the condition that the configuration information is the data type combination;
and the sending unit is used for sending the combined data to the client side for the client side to arrange and decode the combined data.
Optionally, the first obtaining module includes:
the third acquisition unit is used for acquiring hardware information and/or network signal strength of the client;
and the determining unit is used for determining the configuration information of the video corresponding to the hardware information and/or the network signal strength according to the corresponding relation between the pre-stored hardware information and/or the network signal strength grade and the configuration information.
Optionally, the first obtaining module is further configured to
Configuration information generated through interactive operation on the client is obtained.
According to a further embodiment of the present invention, a computer-readable storage medium is also provided, in which a computer program is stored, wherein the computer program is configured to perform the steps of any of the above-described method embodiments when executed.
According to yet another embodiment of the present invention, there is also provided an electronic device, including a memory in which a computer program is stored and a processor configured to execute the computer program to perform the steps in any of the above method embodiments.
According to the invention, a playing request message for playing the video initiated by a client is received, wherein the playing request message carries the video identification of the video to be played; acquiring configuration information of the video to be played according to the playing request message, wherein the configuration information is used for indicating the data type or the data type combination of the video to be played; acquiring target data of the video to be played, which is matched with the video identifier and the configuration information, from data of different data types of independently stored videos; the target data is returned to the client, so that the problem that the video transmission cannot be adjusted according to the actual condition of the client due to the fact that all video data are transmitted in the related technology can be solved, the video playing effect is poor, the transmission content of the video is adjusted according to the configuration condition of the client, and the video playing effect is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a block diagram of a hardware configuration of a mobile terminal of a video processing method according to an embodiment of the present invention;
FIG. 2 is a flow diagram of a video processing method according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a video composition according to an embodiment of the invention;
FIG. 4 is a schematic diagram of video storage according to an embodiment of the present invention;
FIG. 5 is a block diagram of video integration according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a client-selected video configuration according to an embodiment of the present invention;
fig. 7 is a block diagram of a video processing device according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Example 1
The method provided by the first embodiment of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking a mobile terminal as an example, fig. 1 is a hardware structure block diagram of a mobile terminal of a video processing method according to an embodiment of the present invention, as shown in fig. 1, a mobile terminal 10 may include one or more processors 102 (only one is shown in fig. 1) (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), and a memory 104 for storing data, and optionally, the mobile terminal may further include a transmission device 106 for communication function and an input/output device 108. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration, and does not limit the structure of the mobile terminal. For example, the mobile terminal 10 may include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.
The memory 104 may be used to store a computer program, for example, a software program of application software and a module, such as a computer program corresponding to the message receiving method in the embodiment of the present invention, and the processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, so as to implement the method described above. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the mobile terminal 10 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the mobile terminal 10. In one example, the transmission device 106 includes a Network adapter (NIC), which can be connected to other Network devices through a base station so as to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.
In this embodiment, a video processing method operating in the mobile terminal or the network architecture is provided, and fig. 2 is a flowchart of a video processing method according to an embodiment of the present invention, as shown in fig. 2, the flowchart includes the following steps:
step S202, receiving a playing request message for playing a video initiated by a client, wherein the playing request message carries a video identifier of the video to be played;
the video identification can be identification related to content generated after video acquisition is completed, for example, the video is an advertisement related to chocolate, and the identification can be a chocolate advertisement; or, the identifier may be directly set, such as video 1, video 2, and video 3, or video a, video B, and video C, etc., which are only exemplary and not limiting to the embodiment of the present invention.
Step S204, acquiring configuration information of the video to be played according to the playing request message, wherein the configuration information is used for indicating the data type or the data type combination of the video to be played;
step S206, acquiring target data of the video to be played, which is matched with the video identifier and the configuration information, from data of different data types of independently stored videos;
step S208, returning the target data to the client.
Through the steps S202 to S208, receiving a play request message for playing a video initiated by a client, where the play request message carries a video identifier of a video to be played; acquiring configuration information of the video to be played according to the playing request message, wherein the configuration information is used for indicating the data type or the data type combination of the video to be played; acquiring target data of the video to be played, which is matched with the video identifier and the configuration information, from data of different data types of independently stored videos; the target data is returned to the client, so that the problem that the video transmission cannot be adjusted according to the actual condition of the client due to the fact that all video data are transmitted in the related technology can be solved, the video playing effect is poor, the transmission content of the video is adjusted according to the configuration condition of the client, and the video playing effect is improved.
In the embodiment of the invention, videos are classified and independently stored, and specifically, the collected videos are separated into the following data types: video data, audio data, metadata, private data; and independently storing the separated videos, wherein the data of each data type of the separated videos are associated through video identification. And the corresponding data can be conveniently acquired subsequently according to the video identification.
Optionally, the step S206 may specifically include:
acquiring data of all data types associated with the video identification from data of different data types of the independently stored video;
and acquiring target data corresponding to the data type or the data type combination of the video to be played indicated by the configuration information from the data of all the data types associated with the video identifier.
Optionally, the step S208 may specifically include:
combining the acquired data of multiple data types under the condition that the configuration information is the data type combination;
and sending the combined data to the client for the client to arrange and decode the combined data.
In the embodiment of the present invention, there are various ways to acquire configuration information of a video to be played, and the configuration information may be a hardware configuration that automatically acquires a client, such as network signal strength at this time, if the network signal strength is low, corresponding target data may be acquired according to a preset policy, and if the hardware configuration does not support video data, only audio data may be acquired; it is also possible to obtain configuration information set by the user on the client if only video data is viewed, or only audio data is listened to.
In an optional embodiment, the step S204 may specifically include:
acquiring hardware information and/or network signal intensity of a client;
and determining the configuration information of the video corresponding to the hardware information and/or the network signal strength according to the corresponding relation between the pre-stored hardware information and/or the network signal strength grade and the configuration information.
In another optional embodiment, the step S204 may further include: configuration information generated through interactive operation on the client is obtained.
The embodiment of the invention can effectively control the elements when playing the video by performing structured decomposition, storage, transmission and the like on the code stream data, thereby achieving better video display effect. And the data composition transmitted by the code stream can be dynamically adjusted through the decoding capability and the network transmission capability of the client. Thereby achieving the effect of dynamic control.
Fig. 3 is a schematic diagram of a video composition according to an embodiment of the present invention, and as shown in fig. 3, the video is divided into the following parts: video data, audio data, metadata, private data (e.g., smart frame information). GOP data, video frames, audio frames, metadata and private frames need to be separated out.
Generally, the video code stream of the current device carries the information, and the private data information is more and more, and often, the client only wants to preview the video, such as viewing on a mobile phone. Carrying a large amount of private data and metadata, etc., may affect the decoding performance and display effect of the client.
Fig. 4 is a schematic view of video storage according to an embodiment of the present invention, and as shown in fig. 4, a device side acquires and stores a video, and the video is stored separately and independently. When the data is transmitted, different combined data is transmitted according to the selection of the user.
And (3) association of data transmission at the equipment side, wherein each data transmission time relates to algorithm arrangement. And a plurality of data integration algorithms can sort the data according to the frame sequence number and integrate the data through the sorting algorithm. Fig. 5 is a block diagram of video integration according to an embodiment of the present invention, and as shown in fig. 5, the data may be as follows: 1,3,4,5,6,10,12,13,14,15,16,18,19,2,7,8,9,11,17,20, data transmission, and the device can directly transmit the combined data. When the client decodes, the data needs to be sorted and decoded according to the combined data. A sorting algorithm is used. The video frames are typically sorted for insertion. Other algorithms such as bubble sorting algorithm and the like are available, and the appropriate algorithm can be selected according to the use condition in the actual process.
Fig. 6 is a schematic diagram of a client-selected video configuration according to an embodiment of the present invention, and as shown in fig. 6, the device transmits only video data and is only used for stream display. According to the information mode selected by the user, the equipment end returns the carried information, for example, the client only requires to return audio information in the established preview channel,
the private data is often various and complex, and the private data can be continuously subdivided, for example, the private data can be divided into motion examination information, object information, heat map information and other types of information, and a user can select and return the private information of the user, and the user has many selection and combination modes which meet the permutation and combination rule.
The strategy selection mode in the embodiment of the invention comprises the following steps: the client can select the mode of data type combination; automatic optimization can also be performed by adopting a recommendation default mode; according to the local hardware condition of the local client, such as no support of sound, the method can be optimized autonomously, and the equipment does not send audio data; self-adaptive optimization can be performed according to the actual situation of the network, for example, when the network is poor, the modes of confirming the priority, preferentially transmitting the video and the like are adopted.
In the embodiment of the invention, under the condition of the scene selected by the user, the scene is self-adaptive, and for APP, if the APP is in a 4G network (mobile network), the APP can automatically start the function, so that the flow is reduced. The method can provide transmission with less bandwidth and reduce flow through the selection of a user or a scene used by the user, has more advantages for the mobile internet, reduces code stream data, reduces decoding performance and reduces the utilization rate of a CPU.
Example 2
According to another embodiment of the present invention, there is also provided a video processing apparatus, and fig. 7 is a block diagram of the video processing apparatus according to the embodiment of the present invention, as shown in fig. 7, including:
a receiving module 72, configured to receive a play request message for playing a video initiated by a client, where the play request message carries a video identifier of a video to be played;
a first obtaining module 74, configured to obtain configuration information of the video to be played according to the play request message, where the configuration information is used to indicate a data type or a data type combination of the video to be played;
a second obtaining module 76, configured to obtain, from data of different data types of independently stored videos, target data of the video to be played, where the target data is matched with the video identifier and the configuration information;
a return module 78, configured to return the target data to the client.
Optionally, the apparatus further comprises:
the captured video is separated into the following data types: video data, audio data, metadata, private data;
and independently storing the separated videos, wherein the data of each data type of the separated videos are associated through video identification.
Optionally, the second obtaining module 76 includes:
a first obtaining unit, configured to obtain data of all data types associated with the video identifier from data of different data types of the independently stored video;
and a second obtaining unit, configured to obtain, from data of all data types associated with the video identifier, target data corresponding to the data type or the data type combination of the video to be played, indicated by the configuration information.
Optionally, the return module 78 includes:
the combination unit is used for combining the acquired data of the multiple data types under the condition that the configuration information is the data type combination;
and the sending unit is used for sending the combined data to the client side for the client side to arrange and decode the combined data.
Optionally, the first obtaining module 74 includes:
the third acquisition unit is used for acquiring hardware information and/or network signal strength of the client;
and the determining unit is used for determining the configuration information of the video corresponding to the hardware information and/or the network signal strength according to the corresponding relation between the pre-stored hardware information and/or the network signal strength level and the configuration information.
Optionally, the first obtaining module 74 is further configured to
Configuration information generated through interactive operation on the client is obtained.
It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.
Example 3
An embodiment of the present invention further provides a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to perform the steps in any of the method embodiments described above when executed.
Alternatively, in the present embodiment, the storage medium may be configured to store a computer program for executing the steps of:
the method comprises the steps of S1, receiving a playing request message for playing a video initiated by a client, wherein the playing request message carries a video identifier of the video to be played;
s2, acquiring configuration information of the video to be played according to the playing request message, wherein the configuration information is used for indicating the data type or the data type combination of the video to be played;
s3, acquiring target data of the video to be played, which is matched with the video identifier and the configuration information, from data of different data types of independently stored videos;
and S4, returning the target data to the client.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing computer programs, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Example 4
Embodiments of the present invention also provide an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.
Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.
Optionally, in this embodiment, the processor may be configured to execute the following steps by a computer program:
the method comprises the steps of S1, receiving a playing request message for playing a video initiated by a client, wherein the playing request message carries a video identifier of the video to be played;
s2, acquiring configuration information of the video to be played according to the playing request message, wherein the configuration information is used for indicating the data type or the data type combination of the video to be played;
s3, acquiring target data of the video to be played, which is matched with the video identifier and the configuration information, from data of different data types of independently stored videos;
and S4, returning the target data to the client.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A video processing method, comprising:
the captured video is separated into the following data types: video data, audio data, metadata, and private data;
the method comprises the steps of independently storing separated videos, wherein data of each data type of the separated videos are related through video identification;
receiving a playing request message for playing a video initiated by a client, wherein the playing request message carries a video identifier of the video to be played;
acquiring configuration information of the video to be played according to the playing request message, wherein the configuration information is used for indicating the data type or the data type combination of the video to be played;
acquiring target data of the video to be played, which is matched with the video identifier and the configuration information, from data of different data types of independently stored videos;
returning the target data to the client, including:
under the condition that the configuration information is a data type combination, combining the acquired data of multiple data types, including: integrating the data through a sorting algorithm, and/or sorting the data according to the frame sequence number;
and sending the combined data to the client for the client to arrange and decode the combined data.
2. The method of claim 1, wherein obtaining target data of the video to be played, which matches the video identifier and the configuration information, from data of different data types of independently stored videos comprises:
acquiring data of all data types associated with the video identification from data of different data types of the independently stored video;
and acquiring target data corresponding to the data type or the data type combination of the video to be played indicated by the configuration information from the data of all the data types associated with the video identifier.
3. The method according to any one of claims 1 to 2, wherein obtaining the configuration information of the video according to the play request message comprises:
acquiring hardware information and/or network signal intensity of a client;
and determining the configuration information of the video corresponding to the hardware information and/or the network signal strength according to the corresponding relation between the pre-stored hardware information and/or the network signal strength grade and the configuration information.
4. The method according to any one of claims 1 to 2, wherein obtaining the configuration information of the video according to the play request message comprises:
configuration information generated through interactive operation on the client is obtained.
5. A video processing apparatus, comprising:
the system comprises a receiving module, a playing module and a playing module, wherein the receiving module is used for receiving a playing request message for playing a video, which is initiated by a client, and the playing request message carries a video identifier of the video to be played;
a first obtaining module, configured to obtain configuration information of the video to be played according to the play request message, where the configuration information is used to indicate a data type or a data type combination of the video to be played;
the second acquisition module is used for acquiring target data of the video to be played, which is matched with the video identifier and the configuration information, from data of different data types of independently stored videos;
the return module is used for returning the target data to the client;
wherein the return module comprises:
a combining unit, configured to combine the acquired data of multiple data types when the configuration information is a data type combination, where the combining unit includes: integrating the data through a sorting algorithm, and/or sorting the data according to the frame sequence number;
a sending unit, configured to send the combined data to the client, so that the client can sort and decode the combined data;
the device further comprises:
the captured video is separated into the following data types: video data, audio data, metadata, and private data;
and independently storing the separated videos, wherein the data of each data type of the separated videos are associated through video identification.
6. A computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to carry out the method of any one of claims 1 to 4 when executed.
7. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and wherein the processor is arranged to execute the computer program to perform the method of any of claims 1 to 4.
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