CN115460451A - Video playing method and device, storage medium and electronic device - Google Patents
Video playing method and device, storage medium and electronic device Download PDFInfo
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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
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
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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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4383—Accessing a communication channel
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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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Abstract
The embodiment of the invention provides a video playing method, a video playing device, a storage medium and an electronic device, wherein the method comprises the following steps: acquiring an access state of a video acquisition device set in a target video cascade system, wherein the target video cascade system comprises cascaded multilayer video acquisition devices; according to the access state of the video acquisition equipment set, determining a group of video acquisition equipment of which the access state is allowed to access in the video acquisition equipment set; establishing connection between the video retrieval equipment and each video acquisition equipment in a group of video acquisition equipment; and under the condition that the target video retrieval instruction is obtained and used for indicating the retrieval of the target video, obtaining the target video and playing the target video through the pre-established connection. By the method and the device, the technical problem that the user experience is poor due to long time delay of a video playing method in the related technology is solved, and the effect of improving the user experience is achieved.
Description
Technical Field
The embodiment of the invention relates to the technical field of video monitoring, in particular to a video playing method, a video playing device, a storage medium and an electronic device.
Background
With the development of video information technology, the current networked video monitoring system has the advantages of platform diversity, independence and low networking degree; network diversity, resources are scattered on a management department portal network, a video private network and the Internet; and an effective system operation and maintenance management means is lacked, and the system availability is poor. The video is converged through multiple nodes, network delay is long, the fluency of video retrieval is influenced, and finally the multiple nodes of the video are converged and then retrieved, so that the retrieval time is prolonged, the cascade convergence efficiency is solved or improved, the problem of large delay of video retrieval under the condition of complex links is solved, the video stability and available methods or services are improved, and the experience of a user in retrieving or playing the video is finally improved. That is, the video playing method in the related art has a long delay time, which results in poor user experience.
Aiming at the technical problem that the user experience is poor due to long time delay of a video playing method in the related technology, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the invention provides a video playing method, a video playing device, a storage medium and an electronic device, which at least solve the technical problem that the user experience is poor due to long time delay of the video playing method in the related technology.
According to an embodiment of the present invention, there is provided a video playing method including: acquiring an access state of a video acquisition device set in a target video cascade system, wherein the target video cascade system comprises cascaded multilayer video acquisition devices, and the multilayer video acquisition devices comprise the video acquisition device set; determining a group of video acquisition devices in the video acquisition device set according to the access state of the video acquisition device set, wherein the access state of the group of video acquisition devices is allowed to be accessed; establishing connection between the video retrieval device and each video acquisition device in the group of video acquisition devices; the method comprises the steps that under the condition that a target video retrieval instruction is obtained on the video retrieval equipment and used for indicating retrieval of a target video obtained by target video obtaining equipment, the target video is obtained through connection established in advance between the video retrieval equipment and the target video obtaining equipment, and the target video is played on the video retrieval equipment, wherein the group of video obtaining equipment comprises the target video obtaining equipment.
In an exemplary embodiment, the obtaining the access status of the set of video obtaining devices in the target video cascading system includes: sending a target detection signaling to each video acquisition device in the video acquisition device set; and determining the access state of each video acquisition device in the video acquisition device set according to the response result of each video acquisition device in the video acquisition device set to the target detection signaling.
In an exemplary embodiment, the determining the access status of each video capturing device in the set of video capturing devices according to a response result of each video capturing device in the set of video capturing devices to the target detection signaling includes: searching for the video acquisition device with the response result as a first result in the video acquisition device set, wherein the first result indicates that preset response information sent in response to the target detection signaling is received; determining the access state of the video acquisition device with the response result of the first result as the access permission under the condition that the video acquisition device with the response result of the first result is found in the video acquisition device set; searching for the video acquiring device with the response result being a second result in the video acquiring device set, wherein the second result indicates that the preset response information sent in response to the target detection signaling is not received; and determining the access state of the video acquisition device with the response result of the second result as access prohibition under the condition that the video acquisition device with the response result of the second result is found in the video acquisition device set.
In one exemplary embodiment, after obtaining the access status of the set of video obtaining devices in the target video cascading system, the method further comprises: recording the access state of each video acquisition device in the video acquisition device set into a target cache; and under the condition that the video acquisition equipment with the access state of the allowed access is included in the video acquisition equipment set, acquiring an optimal link between the video retrieval equipment and the video acquisition equipment with the access state of the allowed access, and recording the optimal link into the target cache.
In an exemplary embodiment, the establishing a connection between the video retrieval device and each of the video retrieval devices in the set of video retrieval devices includes: acquiring an optimal link between the video retrieval device and each video acquisition device in the group of video acquisition devices in the target cache; establishing a connection between the video browsing device and each of the video capturing devices in the set of video capturing devices on an optimal link between the video browsing device and each of the video capturing devices in the set of video capturing devices.
In an exemplary embodiment, before obtaining the access status of the set of video acquirement devices in the target video cascade system, the method further comprises: determining the priority of each video acquisition device in the multilayer video acquisition devices; determining the video acquisition device set in the multilayer video acquisition devices according to the priority of each video acquisition device in the multilayer video acquisition devices, wherein the priority of each video acquisition device in the video acquisition device set is higher than the priority of video acquisition devices in the multilayer video acquisition devices except the video acquisition device set.
In an exemplary embodiment, the determining the priority of each of the plurality of layers of video capturing devices includes: determining the priority of each of the multi-layer video acquisition devices according to the reference information of each of the multi-layer video acquisition devices, wherein the reference information of each of the multi-layer video acquisition devices includes at least one of the following: the video retrieval method comprises the steps of obtaining the number of times of retrieval of videos obtained by each of the multilayer video obtaining devices, judging whether videos obtained by each of the multilayer video obtaining devices are hot videos or not, obtaining the importance levels of the videos obtained by each of the multilayer video obtaining devices, and obtaining the network transmission state between each of the multilayer video obtaining devices and the video retrieval device.
According to another embodiment of the present invention, there is also provided a video playback apparatus including: the system comprises an acquisition module, a processing module and a display module, wherein the acquisition module is used for acquiring the access state of a video acquisition device set in a target video cascade system, the target video cascade system comprises cascaded multilayer video acquisition devices, and the multilayer video acquisition devices comprise the video acquisition device set; a first determining module, configured to determine a group of video acquiring devices in the video acquiring device set according to an access state of the video acquiring device set, where the access state of the group of video acquiring devices is an access permission state; the establishing module is used for establishing connection between the video retrieval equipment and each video acquisition equipment in the group of video acquisition equipment; the playing module is used for acquiring a target video retrieval instruction on the video retrieval equipment, acquiring the target video through a pre-established connection between the video retrieval equipment and the target video acquisition equipment under the condition that the target video retrieved by the target video acquisition equipment is retrieved through the target video retrieval instruction, and playing the target video on the video retrieval equipment, wherein the group of video acquisition equipment comprises the target video acquisition equipment.
According to a further embodiment of the present invention, there is also provided a computer-readable storage medium having a computer program stored thereon, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.
According to yet another embodiment of the present invention, there is also provided an electronic device, comprising a memory in which a computer program is stored and a processor configured to run the computer program to perform the steps of any of the method embodiments described above.
According to the invention, the access state of the video acquisition device set in the target video cascade system is acquired, a group of video acquisition devices allowing access is determined from the video acquisition device set according to the access state, the connection between the video retrieval device and each video acquisition device in the group of video acquisition devices is established, and under the condition that a target video retrieval instruction is received, the target video acquired by the target video acquisition device indicated by the retrieval instruction is acquired through the pre-established connection, and the target video is played. Namely, a group of video obtaining devices (or called available video obtaining devices) is determined according to the access state of the video obtaining devices in the target video cascading system, that is, a group of video obtaining devices (or called video obtaining devices with connectable links) is determined according to the accessibility condition of the link where each video obtaining device is located in the target video cascading system, the connection with the group of video obtaining devices is established in advance, and the target video obtained by the target video obtaining device is retrieved, so that the purpose of improving the stability and speed of the video can be achieved, and the problems of long video retrieval delay time and poor video stability in the related technology are avoided.
Drawings
Fig. 1 is a block diagram of a hardware structure of a mobile terminal of a video playing method according to an embodiment of the present invention;
fig. 2 is a flowchart of a video playing method according to an embodiment of the present invention;
FIG. 3 is a diagram of a path detection system architecture for a video cascade system in accordance with an embodiment of the invention;
FIG. 4 is a diagram of an example network traffic analysis service in accordance with a specific embodiment of the present invention;
FIG. 5 is an exemplary diagram of a video recall recording statistics service in accordance with a specific embodiment of the present invention;
FIG. 6 is a diagram illustrating analysis results of a cascaded link according to an embodiment of the present invention;
FIG. 7 is an overall flowchart of a cascading system video recall method according to a specific embodiment of the present invention;
fig. 8 is a block diagram of a video playback device according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
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.
The method embodiments provided in the embodiments of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking the operation on the mobile terminal as an example, fig. 1 is a block diagram of a hardware structure of the mobile terminal of the video playing method according to the embodiment of the present invention. As shown in fig. 1, the mobile terminal may include one or more (only one shown in fig. 1) processors 102 (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, wherein the mobile terminal may further include a transmission device 106 for communication functions and an input-output device 108. It will be understood by those of ordinary skill in the art that the structure shown in fig. 1 is only an illustration and is not intended to limit the structure of the mobile terminal. For example, the mobile terminal may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.
The memory 104 can be used for storing computer programs, for example, software programs and modules of application software, such as a computer program corresponding to the video playing method in the embodiment of the present invention, and the processor 102 executes various functional applications and data processing by running the computer programs stored in the memory 104, so as to implement the above method. 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 examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the mobile terminal over 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 to receive or transmit 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. 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 playing method is provided, and fig. 2 is a flowchart of a video playing method according to an embodiment of the present invention, as shown in fig. 2, the flowchart includes the following steps:
step S202, obtaining an access state of a video obtaining device set in a target video cascade system, wherein the target video cascade system comprises cascaded multilayer video obtaining devices, and the multilayer video obtaining devices comprise the video obtaining device set;
step S204, according to the access state of the video acquisition equipment set, determining a group of video acquisition equipment in the video acquisition equipment set, wherein the access state of the group of video acquisition equipment is allowed to be accessed;
step S206, establishing connection between the video retrieval equipment and each video acquisition equipment in the group of video acquisition equipment;
step S208, when a target video retrieval instruction is acquired on the video retrieval device and the target video retrieval instruction is used for instructing retrieval of a target video acquired by a target video acquisition device, acquiring the target video through a pre-established connection between the video retrieval device and the target video acquisition device, and playing the target video on the video retrieval device, wherein the group of video acquisition devices includes the target video acquisition device.
Through the steps, the access state of the video acquisition device set in the target video cascade system is obtained, then a group of video acquisition devices allowing access is determined from the video acquisition device set according to the access state, the connection between the video retrieval device and each video acquisition device in the group of video acquisition devices is established, and under the condition that the target video retrieval instruction is received, the target video acquired by the target video acquisition device indicated by the retrieval instruction is obtained through the pre-established connection, and the target video is played. The method comprises the steps of determining a group of video acquisition devices (or called available video acquisition devices) according to access states of the video acquisition devices in a target video cascade system, namely determining a group of video acquisition devices (or called video acquisition devices with connectable links) according to accessibility conditions of links of the video acquisition devices in the target video cascade system, establishing connection with the group of video acquisition devices in advance, and retrieving a target video acquired by the target video acquisition devices, so that the purpose of improving video stability and speed can be achieved, and the problems of long video retrieval delay time and poor video stability in the related technology are solved.
The main body of the above steps may be a system or an apparatus side, for example, a monitoring system, or a video retrieval apparatus, or a processor with human-computer interaction capability configured on a storage apparatus, or a processing apparatus or a processing unit with similar processing capability, and the like, but is not limited thereto. The following description will be given by taking the video retrieval device as an example (which is only an exemplary description, and in actual operation, other devices or modules may be used to perform the above operations):
in the above embodiment, the video retrieval device obtains the access status of a set of video acquisition devices in a target video cascade system, where the target video cascade system includes cascaded multilayer video acquisition devices, and the multilayer video acquisition devices include a set of video acquisition devices, for example, the video acquisition devices may be cameras or cameras, or devices for video collection and summarization, and the multilayer video acquisition devices include video acquisition devices in different hierarchies, for example, taking a certain city retrieval center (or monitoring center) as an example, the retrievable video includes videos acquired by video acquisition devices in counties to which the city belongs, and may also include videos acquired by video acquisition devices in towns to which the counties belong, and may even include videos acquired by video acquisition devices in streets to which the towns belong, that is, the target video cascade system is composed of video acquisition devices in different hierarchies, and the retrieval center may acquire the access status of the set of video acquisition devices, or the city retrieval center acquires the accessibility of each device in the set of video acquisition devices, that is reachable, that it may be reached, which links are included in the video acquisition devices, and which video acquisition devices may be included in the video acquisition devices, or may be set in advance, and may include access statuses of all video acquisition devices in the video acquisition devices or may be set of the video acquisition devices, such as a cascade center, and may be taken by a user, or a cascade system, and may include a video acquisition device in which link or a cascade of a cascade system, and which is set; determining a group of video acquisition devices in the video acquisition device set according to the access state of the video acquisition device set, wherein the access state can be access permission, that is, access permission of a video acquired by a certain video acquisition device, or access prohibition, and the access state of the group of video acquisition devices is access permission, that is, access permission of a group of video acquisition devices is determined from the video acquisition device set; then establishing connection between the video retrieval device and each video acquisition device in the group of video acquisition devices, namely establishing a signaling channel of a link between the video retrieval device and each video acquisition device in the group of video acquisition devices in advance; when the target video retrieval instruction is acquired on the video retrieval device and is used for indicating to retrieve the target video acquired by the target video acquisition device, the target video can be acquired through the established connection, and the target video is played on the video retrieval device, wherein the retrieval video (or the target video) refers to retrieval and playing of the video. The method comprises the steps of determining a group of video acquisition devices (or called available video acquisition devices) according to access states of the video acquisition devices in a target video cascade system, namely determining a group of video acquisition devices (or called video acquisition devices with connectable links) according to accessibility conditions of links of the video acquisition devices in the target video cascade system, establishing connection with the group of video acquisition devices in advance, and then acquiring a target video by using the pre-established connection when a retrieval instruction is received, so that the purpose of improving the stability and speed of the video can be achieved, and the problems of long video retrieval delay time and poor video stability in the related technology are avoided.
In an optional embodiment, the obtaining the access status of the set of video obtaining devices in the target video cascading system includes: sending a target detection signaling to each video acquisition device in the video acquisition device set; and determining the access state of each video acquisition device in the video acquisition device set according to the response result of each video acquisition device in the video acquisition device set to the target detection signaling. In this embodiment, the access state of each video acquisition device may be determined by sending the target detection signaling to each video acquisition device, and then determining, according to a response result of each video acquisition device to the target detection signaling, whether each video acquisition device is allowed to be accessed, or optionally, sending the target detection signaling to all video acquisition devices included in the target video cascade system, and further determining the access states of all video acquisition devices. In practical application, the heartbeat signaling may be sent to each video acquisition device according to a predetermined period to determine an access state of each video acquisition device, or to say, determine an accessibility situation of a link where each video acquisition device is located. Through the embodiment, the aim of determining the access state of the video acquisition equipment by sending the target detection signaling is fulfilled.
In an optional embodiment, the determining, according to a response result of each video acquisition device in the set of video acquisition devices to the target detection signaling, the access state of each video acquisition device in the set of video acquisition devices includes: searching for the video acquisition device with the response result as a first result in the video acquisition device set, wherein the first result indicates that preset response information sent in response to the target detection signaling is received; determining the access state of the video acquisition device with the response result of the first result as the access permission under the condition that the video acquisition device with the response result of the first result is found in the video acquisition device set; searching for the video acquisition device with the response result being a second result in the video acquisition device set, wherein the second result indicates that the preset response information sent in response to the target detection signaling is not received; and determining the access state of the video acquisition device with the response result of the second result as access prohibition under the condition that the video acquisition device with the response result of the second result is found in the video acquisition device set. For example, when the response result of the video obtaining device a to the target detection signaling is the first result, it indicates that the link where the video obtaining device a is located is reachable, that is, the device a is accessible, and at this time, the access state of the video obtaining device a may be determined as allowed to be accessed; conversely, when the response result of the video obtaining device B to the target detection signaling is the second result, it indicates that the link where the video obtaining device B is located is unreachable, that is, the device B is inaccessible, and at this time, the access state of the video obtaining device B may be determined as access prohibition. Through the embodiment, the purpose of determining the access state of each video acquisition device according to the acquired response result of each video acquisition device to the target detection signaling is achieved.
In an optional embodiment, after obtaining the access status of the set of video obtaining devices in the target video cascading system, the method further comprises: recording the access state of each video acquisition device in the video acquisition device set into a target cache; and under the condition that the video acquisition equipment with the access state of the allowed access is included in the video acquisition equipment set, acquiring an optimal link between the video retrieval equipment and the video acquisition equipment with the access state of the allowed access, and recording the optimal link into the target cache. In this embodiment, the access state of each video obtaining device may be recorded in a target cache, including an access state of a device (e.g., the device a) that allows access and an access state of a device (e.g., the device B) that does not allow access, where the target cache may be an information cache module in a retrieval device (or a system), optionally, link information (or a path) that accesses a certain video obtaining device (e.g., the device C) may be stored in the target cache, and in an actual application, there are multiple paths that may access the device C, at this time, an optimal link may be determined from the multiple paths, for example, an optimal link may be selected according to a principle that the path is the shortest, a path with the highest success rate may also be determined according to historical access data as the optimal link, and, of course, an optimal link may also be determined according to other principles, and the optimal link is also recorded in the target cache. By the embodiment, the purpose of recording the access state of each video acquisition device in the target cache is achieved, and meanwhile, the purposes of determining the optimal link and recording the optimal link in the target cache can be achieved under the condition that a plurality of access paths exist for the accessed video acquisition device.
In an optional embodiment, the establishing a connection between the video retrieval device and each video retrieval device in the group of video retrieval devices includes: acquiring an optimal link between the video retrieval device and each video acquisition device in the group of video acquisition devices in the target cache; establishing a connection between the video retrieval device and each of the video acquisition devices in the set of video acquisition devices on an optimal link between the video retrieval device and each of the video acquisition devices in the set of video acquisition devices. In this embodiment, when establishing a connection between the video retrieval device and each of the video capture devices in the set of video capture devices, the optimal link corresponding to each of the video capture devices may be obtained from the target cache, where the set of video capture devices are all devices with access status as allowed access, and as described in the foregoing embodiment, the optimal link of each of the video capture devices allowed to access is also recorded in the target cache, so that the optimal link between each of the video capture devices allowed to access (e.g., the foregoing device a) may be obtained from the target cache, and then, the connection between the video retrieval device and each of the video capture devices allowed to access is established on the optimal link. Through the embodiment, the purpose of establishing connection on the optimal link between the video retrieval device and the video acquisition device allowed to be accessed is achieved.
In an optional embodiment, before obtaining the access status of the set of video obtaining devices in the target video cascading system, the method further comprises: determining the priority of each video acquisition device in the multilayer video acquisition devices; determining the video acquisition device set in the multilayer video acquisition devices according to the priority of each video acquisition device in the multilayer video acquisition devices, wherein the priority of each video acquisition device in the video acquisition device set is higher than the priority of video acquisition devices in the multilayer video acquisition devices except the video acquisition device set. In practical application, different priorities may be set for video acquisition devices of different hierarchies included in a target video cascade system, and then a video acquisition device set is determined from multiple layers of video acquisition devices according to the priorities of the video acquisition devices, for example, for some video acquisition devices with higher attention or videos acquired by the devices, a higher priority may be set, conversely, for video acquisition devices with lower attention or videos acquired by the devices only need to pay attention occasionally, a lower priority may be set, and of course, in practical application, the priorities of different video acquisition devices may be adjusted temporarily as needed. By the embodiment, the purposes of determining the priority of each video acquisition device and determining the video acquisition device set according to the priority are achieved.
In an optional embodiment, the determining the priority of each of the multiple layers of video capturing devices includes: determining the priority of each of the multi-layer video acquisition devices according to the reference information of each of the multi-layer video acquisition devices, wherein the reference information of each of the multi-layer video acquisition devices includes at least one of the following: the video retrieval method comprises the steps of obtaining the number of times of retrieval of videos obtained by each of the multilayer video obtaining devices, judging whether the videos obtained by each of the multilayer video obtaining devices are hot videos or not, obtaining the importance levels of the videos obtained by each of the multilayer video obtaining devices, and obtaining the network transmission state between each of the multilayer video obtaining devices and the video retrieval device. In this embodiment, the priority of each video acquisition device may be determined according to reference information of each video acquisition device, for example, the priority of a hotspot video is higher and the priority of a non-hotspot video is lower according to the number of times that a video acquired by each video acquisition device is called, or the nature of the video acquired by each video acquisition device, such as whether the video is a hotspot video, or the priority of the hotspot video is higher and the priority of the non-hotspot video is lower, or the priority of each video acquisition device may be determined according to the importance level of the video itself acquired by each video acquisition device, or optionally, the priority of each video acquisition device may be determined according to a network transmission state between each video acquisition device and the video calling device. Through the embodiment, the purpose of determining the priority of each video acquisition device based on different principles is achieved.
It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. The present invention will be described in detail with reference to examples.
In this embodiment, a path detection system of a video cascade system is further provided, and fig. 3 is a diagram of a path detection system architecture of a video cascade system according to an embodiment of the present invention, where the system (i.e., the cascade path detection cache system in fig. 3) includes: the device comprises a network analysis module, a video queue analysis module, a cascade information caching module, a cascade detection monitoring module and an alarm sending module. The network analysis module is mainly used for counting and analyzing the current network flow service condition and avoiding network flow congestion. The video queue analysis module is mainly used for forming a hot video by analyzing the video retrieval record of the user and supporting the setting of important video point positions with high priority. The cascade information caching module is mainly used for recording the link connection condition of the cascade video point location and caching all link connection information capable of reaching the video, and when a user reads the video point location, the user can directly read the video stream and simultaneously the video stream is used as the information basis of the alarm sending module. The cascade detection monitoring module is a core module in the embodiment of the present application, and is mainly used for detecting link conditions of all videos in a video cascade system (a dashed-line frame on the right side in fig. 3) through signaling heartbeat, forming reachability analysis, and recording the reachability analysis in the cascade information caching module. The alarm sending module is mainly used for ensuring that a link is normal aiming at important video points, and automatically sending alarm information to operation and maintenance workers when the important video points are unreachable. And guiding operation and maintenance workers to patrol and repair the equipment, so that the key video equipment can be used.
The functional principle or flow of each block is explained below.
(1) Network analysis module
The current network use condition is detected at regular time, and whether the network congestion occurs in the current video retrieval is mainly analyzed. The principal analytical procedure is as follows:
1) Acquiring the total bandwidth of the current network;
2) Estimating the bandwidth occupied by the currently retrieved video (calculated according to 4mbps code stream);
3) Under the condition of reserving 20% -30% of bandwidth, estimating the number of videos which can be read (calculated according to 4mbps code stream);
4) In an exceptional case, if the retrieval of the video (calculated according to 4mbps code stream) exceeds 80% of the total bandwidth, the last 5 paths of videos are sent to the operation and maintenance personnel according to the queue priority in the video queue analysis module, so that the operation and maintenance personnel close unimportant videos.
Fig. 4 is a diagram of an example network traffic analysis service according to an embodiment of the present invention, which may include: (1) the current network use condition can be detected through a network flow query tool; (2) secondly, according to the queue priority in the video queue analysis module, under the condition that the bandwidth allows, the video with high priority is called first; (3) when the bandwidth exceeds a certain threshold (which may be preset), an alarm notification may be issued.
(2) Video queue analysis module
The video queue analysis module is mainly used for forming a hot video by analyzing the video retrieval record of the user and supporting the setting of important video point positions with high priority. The general flow is as follows:
1) And analyzing the video retrieval record, and recording the video information of the first 150 high-frequency hot spots into a database.
2) For emergency events, operation and maintenance personnel can manually adjust the video priority at a background management end.
3) A priority video queue is maintained for use by other modules based on the statistical information and the manual adjustment information in the database.
Fig. 5 is a diagram of an example of a video retrieval record statistics service according to an embodiment of the present invention, as shown in fig. 5, the process includes: (1) inquiring video retrieval records; (2) counting and recording hot videos; (3) the high priority may be set manually.
(3) Cascade information buffer module
The module mainly records the link connection condition of the cascade video point location, caches all the link connection information of the reachable video, and when a user reads the video point location, the video stream can be directly read and used as the information basis of the alarm sending module. The module is mainly a memory data structure. The Channelanalysis represents the reachability analysis result of the video channel cascade link; pathNode denotes each node on the concatenation path. The relationship is shown in fig. 6.
1)ChannelAnalysis
channel code is channel coding;
reacable: whether the access is available;
optimalNodPath: the linked data structure is used for recording all node information;
failedNodPathList: if the path is not reachable, all link information is recorded and can be used for alarm notification.
2)PathNode
A nodeName: a node name;
reacable: whether the node is reachable.
(4) Cascade detection monitoring module
The cascade detection monitoring module is a core module of the embodiment of the application, and mainly functions to detect the link conditions of all videos in a video cascade system through signaling heartbeat, form reachability analysis and record the reachability analysis in the cascade information caching module. The general flow is as follows:
1) 2 data were obtained from the network analysis module: total bandwidth configuration and current network usage.
2) The first 150 high-priority video point location information (corresponding to the aforementioned cascaded multi-layer video acquisition devices) are acquired from the video queue analysis module.
3) And acquiring the reachability analysis data (corresponding to the access state of the video acquisition equipment) of the cascaded path of the high-priority video point location by timing polling, and storing the data into a cascaded information cache module.
4) The streaming media connection is cached, and the video retrieval speed is improved. For the video point locations with high priority, under the condition of occupying a small amount of bandwidth, streaming media signaling channel connection information (corresponding to the connection between the video retrieval device and each video acquisition device in the group of video acquisition devices) is established in advance and stored in the cascade information cache module. When the video is retrieved, the established cache connection is directly sent to the client, so that the video retrieval speed is accelerated, and the video quality and stability are improved.
5) And acquiring the reachability analysis data of the cascade paths of all point positions with low priority through timing polling, and storing the reachability analysis data into a cascade information caching module.
(5) Alarm sending module
The alarm sending module is mainly used for determining whether to send information to operation and maintenance personnel according to the data of the cascade cache module and the video priority queue information. The general flow is as follows:
1) And acquiring all the failed link information (corresponding to the link information of the device with the access state being the access prohibition) from the cascade cache data module.
2) And acquiring important video information from the video queue priority.
3) And (3) taking the intersection of the step (1) and the step (2), calculating failure nodes with the most unreachable, and sending unreachable node information of corresponding points to operation and maintenance personnel to inform the inspection and maintenance personnel.
The above is a path detection system of a video cascade system in an embodiment of the present application and each module included in the path detection system, the embodiment of the present application further provides a video retrieval method of the cascade system, fig. 7 is an overall flowchart of the video retrieval method of the cascade system according to an embodiment of the present invention, and the flowchart includes:
s702, analyzing the network condition; before the video is retrieved, whether the bandwidth is enough is estimated to prevent the network congestion;
s704, determining a video priority queue; for example, the priorities of different video point locations (corresponding to the aforementioned video acquisition devices) may be different;
s706, detecting the link condition of each video point in the cascade system through signaling; this step corresponds to the aforementioned determination of the access status of each video acquisition device;
s708, recording the video point location link connection condition; the video point location link information can be stored in a cache module, and the link connection information of the reachable video point location can also be stored in the cache module, so that a streaming media signaling channel with the reachable video point location can be established in advance;
and S710, sending alarm information.
It should be noted that, the steps S702 and S704 do not have a strict sequence, that is, the step S704 may be executed first, and then the step S702 is executed, or the step S702 and the step S704 may be executed simultaneously; step S710 is also not necessary, and only when some link failures are determined according to S708 and/or according to the priorities of the video points, whether alarm information needs to be sent out is determined, so as to facilitate the operation and maintenance personnel to perform inspection and maintenance.
In the above embodiment, the reachability of the video cascade link is detected by a detection program to form statistical analysis data; analyzing the conditions of the network and the like to form a priority queue so as to ensure the video retrieval quality and stability; by establishing the data of the cascade link channel in advance, the time consumed by video retrieval is reduced, and the retrieval speed is improved; and according to the link accessibility condition, informing the operation and maintenance personnel of the inaccessible cascade node information so as to facilitate routing inspection and maintenance.
By the embodiment of the application, the accessibility of the complex cascade link can be automatically monitored and identified, the available cascade link can be identified, the signaling channel of the complex cascade link can be established in advance, and the connection state of the cascade link can be cached, so that the effect of improving the video stability and speed can be achieved; the reachability analysis of the detection link can be carried out according to the priority conditions such as network conditions, hotspot videos and key videos; in addition, after the link is identified to be unreachable, alarm is selectively performed according to the priority strategy to inform operation and maintenance personnel to perform routing inspection.
Compared with the scheme in the related art, the embodiment of the application has the following advantages: 1) Analyzing accessibility conditions of complex cascade links of multiple networks (video private networks, government affair extranets and the Internet), forming priority queues according to priority conditions of network conditions, hotspot videos, key videos and the like, preferentially establishing signaling channels with high priority, caching connection states of the cascade links, and reducing time consumed by video retrieval, thereby improving the quality and stability of videos; 2) The failure link information and the video priority queue information in the cascade cache data module are synthesized, and operation and maintenance personnel are informed through the alarm module to carry out routing inspection and repair; 3) And the accessibility of the cascade path is analyzed through a software program, so that a large amount of equipment construction cost and labor input are saved.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
In this embodiment, a video playing apparatus is further provided, and fig. 8 is a block diagram of a structure of a video playing apparatus according to an embodiment of the present invention, as shown in fig. 8, the apparatus includes:
an obtaining module 802, configured to obtain an access state of a video obtaining device set in a target video cascading system, where the target video cascading system includes cascaded multilayer video obtaining devices, and the multilayer video obtaining devices include the video obtaining device set;
a first determining module 804, configured to determine a group of video acquiring devices in the video acquiring device set according to an access state of the video acquiring device set, where the access state of the group of video acquiring devices is an access permission state;
an establishing module 806, configured to establish a connection between the video retrieval device and each video obtaining device in the group of video obtaining devices;
a playing module 808, configured to, in a case that a target video retrieval instruction is obtained on the video retrieval device and the target video retrieval instruction is used to instruct to retrieve a target video obtained by a target video obtaining device, obtain the target video through a pre-established connection between the video retrieval device and the target video obtaining device, and play the target video on the video retrieval device, where the group of video obtaining devices includes the target video obtaining device.
In an optional embodiment, the obtaining module 802 includes: a sending unit, configured to send a target detection signaling to each video acquisition device in the video acquisition device set; a first determining unit, configured to determine the access status of each video acquiring device in the set of video acquiring devices according to a response result of each video acquiring device in the set of video acquiring devices to the target detection signaling.
In an optional embodiment, the first determining unit includes: a first searching subunit, configured to search, in the video acquisition device set, a video acquisition device whose response result is a first result, where the first result indicates that preset response information sent in response to the target detection signaling is received; a first determining subunit, configured to determine, when a video acquisition device whose response result is the first result is found in the video acquisition device set, an access state of the video acquisition device whose response result is the first result as the permitted access; a second searching subunit, configured to search, in the video acquiring device set, a video acquiring device whose response result is a second result, where the second result indicates that the preset response information sent in response to the target detection signaling is not received; a second determining subunit, configured to determine, when the video obtaining device with the response result as the second result is found in the video obtaining device set, that the access state of the video obtaining device with the response result as the second result is prohibited from accessing.
In an optional embodiment, the apparatus further comprises: the recording module is used for recording the access state of each video acquisition device in the video acquisition device set into a target cache after the access state of the video acquisition device set in the target video cascade system is acquired; and the processing module is used for acquiring an optimal link between the video retrieval device and the video retrieval device with the access state allowed to be accessed under the condition that the video retrieval device set comprises the video retrieval device with the access state allowed to be accessed, and recording the optimal link into the target cache.
In an alternative embodiment, the establishing module 806 includes: an obtaining unit, configured to obtain, in the target cache, an optimal link between the video retrieval device and each video obtaining device in the group of video obtaining devices; an establishing unit, configured to establish a connection between the video retrieval device and each of the video capturing devices in the group of video capturing devices on an optimal link between the video retrieval device and each of the video capturing devices in the group of video capturing devices.
In an optional embodiment, the apparatus further comprises: the second determining module is used for determining the priority of each video acquiring device in the multilayer video acquiring devices before acquiring the access state of the video acquiring device set in the target video cascading system; a third determining module, configured to determine, according to priorities of video obtaining devices in the multiple layers of video obtaining devices, the video obtaining device set in the multiple layers of video obtaining devices, where the priority of each video obtaining device in the video obtaining device set is higher than priorities of video obtaining devices, other than the video obtaining device set, in the multiple layers of video obtaining devices.
In an optional embodiment, the second determining module includes: a second determining unit, configured to determine a priority of each of the multiple layers of video obtaining devices according to reference information of each of the multiple layers of video obtaining devices, where the reference information of each of the multiple layers of video obtaining devices includes at least one of: the video retrieval method comprises the steps of obtaining the number of times of retrieval of videos obtained by each of the multilayer video obtaining devices, judging whether the videos obtained by each of the multilayer video obtaining devices are hot videos or not, obtaining the importance levels of the videos obtained by each of the multilayer video obtaining devices, and obtaining the network transmission state between each of the multilayer video obtaining devices and the video retrieval device.
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.
Embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, wherein the computer program is arranged to perform the steps of any of the above-mentioned method embodiments when executed.
In an exemplary embodiment, the computer-readable 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.
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.
In an exemplary embodiment, 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.
For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary embodiments, and details of this embodiment are not repeated herein.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented in a general purpose computing device, they may be centralized in a single computing device or distributed across a network of multiple computing devices, and they may be implemented in program code that is executable by a computing device, such that they may be stored in a memory device and executed by a computing device, and in some cases, the steps shown or described may be executed in an order different from that shown or described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple modules or steps therein 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 shall be included in the protection scope of the present invention.
Claims (10)
1. A video playback method, comprising:
acquiring an access state of a video acquisition device set in a target video cascade system, wherein the target video cascade system comprises cascaded multilayer video acquisition devices, and the multilayer video acquisition devices comprise the video acquisition device set;
determining a group of video acquisition devices in the video acquisition device set according to the access state of the video acquisition device set, wherein the access state of the group of video acquisition devices is access permission;
establishing connection between the video retrieval device and each video acquisition device in the group of video acquisition devices;
the method comprises the steps that under the condition that a target video retrieval instruction is obtained on the video retrieval equipment and used for indicating retrieval of a target video obtained by target video obtaining equipment, the target video is obtained through connection established in advance between the video retrieval equipment and the target video obtaining equipment, and the target video is played on the video retrieval equipment, wherein the group of video obtaining equipment comprises the target video obtaining equipment.
2. The method according to claim 1, wherein the obtaining the access status of the set of video obtaining devices in the target video cascading system comprises:
sending a target detection signaling to each video acquisition device in the video acquisition device set;
and determining the access state of each video acquisition device in the video acquisition device set according to the response result of each video acquisition device in the video acquisition device set to the target detection signaling.
3. The method according to claim 2, wherein the determining the access status of each video capturing device in the set of video capturing devices according to the response result of each video capturing device in the set of video capturing devices to the target detection signaling comprises:
searching for the video acquisition device with the response result as a first result in the video acquisition device set, wherein the first result indicates that preset response information sent in response to the target detection signaling is received;
determining the access state of the video acquisition device with the response result of the first result as the access permission under the condition that the video acquisition device with the response result of the first result is found in the video acquisition device set;
searching for the video acquiring device with the response result being a second result in the video acquiring device set, wherein the second result indicates that the preset response information sent in response to the target detection signaling is not received;
and determining the access state of the video acquisition device with the response result of the second result as access prohibition under the condition that the video acquisition device with the response result of the second result is found in the video acquisition device set.
4. The method of claim 2, wherein after obtaining the access status of the set of video capture devices in the target video cascading system, the method further comprises:
recording the access state of each video acquisition device in the video acquisition device set into a target cache;
and under the condition that the video acquisition equipment with the access state of the allowed access is included in the video acquisition equipment set, acquiring an optimal link between the video retrieval equipment and the video acquisition equipment with the access state of the allowed access, and recording the optimal link into the target cache.
5. The method of claim 4, wherein establishing a connection between a video recall device and each video capture device in the set of video capture devices comprises:
acquiring an optimal link between the video retrieval device and each video acquisition device in the group of video acquisition devices in the target cache;
establishing a connection between the video retrieval device and each of the video acquisition devices in the set of video acquisition devices on an optimal link between the video retrieval device and each of the video acquisition devices in the set of video acquisition devices.
6. The method of claim 1, wherein prior to obtaining the access status of the set of video capture devices in the target video cascading system, the method further comprises:
determining the priority of each video acquisition device in the multilayer video acquisition devices;
determining the video acquisition device set in the multilayer video acquisition devices according to the priority of each video acquisition device in the multilayer video acquisition devices, wherein the priority of each video acquisition device in the video acquisition device set is higher than the priority of video acquisition devices in the multilayer video acquisition devices except the video acquisition device set.
7. The method of claim 6, wherein determining the priority of each of the plurality of layers of video capture devices comprises:
determining the priority of each of the multi-layer video acquisition devices according to the reference information of each of the multi-layer video acquisition devices, wherein the reference information of each of the multi-layer video acquisition devices includes at least one of: the video retrieval method comprises the steps of obtaining the number of times of retrieval of videos obtained by each of the multilayer video obtaining devices, judging whether videos obtained by each of the multilayer video obtaining devices are hot videos or not, obtaining the importance levels of the videos obtained by each of the multilayer video obtaining devices, and obtaining the network transmission state between each of the multilayer video obtaining devices and the video retrieval device.
8. A video playback apparatus, comprising:
the system comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring the access state of a video acquisition device set in a target video cascade system, the target video cascade system comprises cascaded multilayer video acquisition devices, and the multilayer video acquisition devices comprise the video acquisition device set;
a first determining module, configured to determine a group of video acquiring devices in the video acquiring device set according to an access state of the video acquiring device set, where the access state of the group of video acquiring devices is an access permission state;
the establishing module is used for establishing connection between the video retrieval equipment and each video acquisition equipment in the group of video acquisition equipment;
the playing module is used for acquiring a target video retrieval instruction on the video retrieval equipment, acquiring the target video through a pre-established connection between the video retrieval equipment and the target video acquisition equipment under the condition that the target video retrieved by the target video acquisition equipment is retrieved through the target video retrieval instruction, and playing the target video on the video retrieval equipment, wherein the group of video acquisition equipment comprises the target video acquisition equipment.
9. A computer-readable storage medium, in which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method as claimed in any one of claims 1 to 7 when executing the computer program.
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