CN110139061B - Video stream screen display method and device - Google Patents
Video stream screen display method and device Download PDFInfo
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- CN110139061B CN110139061B CN201910272669.9A CN201910272669A CN110139061B CN 110139061 B CN110139061 B CN 110139061B CN 201910272669 A CN201910272669 A CN 201910272669A CN 110139061 B CN110139061 B CN 110139061B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
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Abstract
The embodiment of the invention provides a method and a device for displaying a video stream by screen display, wherein the method is applied to a video network terminal and comprises the following steps: when the video networking terminal displays a plurality of video streams, the video networking terminal judges whether a video stream channel changes or not; if the video stream channel changes, the video networking terminal inquires and acquires channel information of the video stream; the video networking terminal judges whether channel information of the video stream meets a preset condition or not; if the preset condition is met, the video network terminal does not redraw the terminal identification of the video network terminal of the channel; and if the preset condition is not met, the video network terminal redraws the terminal identification of the video network terminal of the channel. The method can improve the working efficiency of switching the split screens of the video networking terminal, can also improve the use experience of networking videos of the user, and reduces the influence of split screen switching on the original user.
Description
Technical Field
The invention relates to the field of network communication, in particular to a video stream screen display method and device.
Background
A video conference system, also called a video conference system, refers to a system device for realizing a teleconference by transmitting audio, video and file data to each other through a transmission line and multimedia devices by individuals or groups in two or more different places, so as to realize real-time and interactive communication. Video conferencing is used somewhat like a telephone, and in addition to seeing people talking to you and having language communication, also can see their expressions and actions, making people in different places just like in the same conference room.
When a video conference is carried out, a video networking terminal receives video streams of a plurality of videos, divides a screen into a plurality of sub-screens, displays the received video streams on the multi-sub-screens, the video streams of each sub-screen are equivalent to a communicated data channel, and the names of the video networking terminals can be displayed on the sub-screens of each video conference.
In the video conference technology adopted at present, when the video conference needs to be switched and split-screened, the names of the video networking terminals on all the channels can be deleted, then the names of the video networking terminals on all the channels are edited, even if the channels are not changed, the names of the video networking terminals on the channels are edited and modified again, on one hand, the efficiency of switching and splitting is reduced, meanwhile, the names of the video networking terminals on each flat channel can twinkle when being edited again, the user who does not switch and split-screen operation is seriously influenced, and the use experience of the user is reduced.
Disclosure of Invention
In view of the above, embodiments of the present invention are proposed to provide a video stream screen display method and apparatus that overcome or at least partially solve the above problems.
In order to solve the above problem, an embodiment of the present invention discloses a video stream screen display method, which is applied to a video networking terminal, and the method includes:
when the video networking terminal displays a plurality of video streams, the video networking terminal judges whether a video stream channel changes or not;
if the video stream channel changes, the video networking terminal inquires and acquires channel information of the video stream;
the video networking terminal judges whether channel information of the video stream meets a preset condition or not;
if the preset condition is met, the video network terminal does not redraw the terminal identification of the video network terminal of the channel;
and if the preset condition is not met, the video network terminal redraws the terminal identification of the video network terminal of the channel.
Optionally, the channel information includes a channel identifier and a terminal identifier of a video networking terminal corresponding to the video stream channel, and the querying and obtaining of the channel information of the video stream by the video networking terminal includes:
the video network terminal counts the channel number of the current video stream and inquires the channel identification of the current video stream channel;
and the video network terminal acquires the terminal identification of the video network terminal corresponding to the current video stream channel through the channel identification of the current video stream channel.
Optionally, the determining, by the video networking terminal, whether channel information of the video stream meets a preset condition includes:
the channel information of the current video stream acquired by the video networking terminal is compared with the channel information of the video stream acquired last time to determine whether the channel information is the same;
if the two signals are the same, judging that the preset conditions are met;
if not, judging that the preset condition is not met.
Optionally, the comparing, by the video networking terminal, whether the channel information of the current video stream acquired by the video networking terminal is the same as the channel information of the video stream acquired last time, further includes:
the video network terminal compares the channel identification of the current video stream channel with the channel identification of the video stream channel obtained last time by the video network terminal to determine whether the channel identification is the same;
if the video stream channel is the same as the video stream channel, the video network terminal compares the terminal identification of the video network terminal corresponding to the current video stream channel with the terminal identification of the video network terminal corresponding to the video stream channel obtained last time by the video network terminal to determine whether the terminal identification is the same.
Optionally, the redrawing, by the video networking terminal, the terminal identifier of the video networking terminal of the channel includes:
and the video network terminal displays the terminal identification of the redrawing video network terminal on a preset screen corresponding to the channel.
Optionally, the method further comprises:
and the video network terminal records the channel information of the current video stream and stores the channel information in the preset database.
The invention also provides a video stream screen display device, which is applied to a video networking terminal and comprises the following components:
the video stream detection module is used for judging whether a video stream channel changes or not when the video networking terminal displays a plurality of video streams;
if the video stream channel changes, inquiring and acquiring channel information of the video stream;
the information management module is used for judging whether the channel information of the video stream meets a preset condition or not;
if the preset condition is met, the information management module does not redraw the terminal identification of the video network terminal of the channel;
if the preset condition is not met, the information management module redraws the terminal identification of the video network terminal of the channel;
optionally, the channel information includes a channel identifier and a terminal identifier of a video networking terminal corresponding to the video stream channel, and the video stream detection module includes:
the quantity detection module is used for counting the channel quantity of the current video stream and inquiring the channel identification of the current video stream channel;
and the identification acquisition module is used for acquiring the terminal identification of the video network terminal corresponding to the video stream channel through the channel identification of the video stream channel.
Optionally, the information management module includes:
the information acquisition module is used for acquiring the channel information of the current video stream and the channel information of the last video stream;
and the information comparison module is used for comparing whether the channel information of the current video stream is the same as the video stream channel information acquired last time.
Optionally, the information comparing module further comprises:
the ID identification comparison module is used for comparing whether the channel identification of the current video stream channel is the same as the channel identification of the video stream channel obtained last time by the video network terminal;
and the terminal identification comparison module is used for comparing whether the terminal identification of the video network terminal corresponding to the current video stream channel is the same as the terminal identification of the video network terminal corresponding to the video stream channel obtained last time.
Optionally, the information management module further includes:
and the identification display module is used for displaying the redrawn terminal identification of the video network terminal on a preset screen corresponding to the channel.
Optionally, the method further comprises:
and the recording module is used for recording the channel information of the current video stream and storing the channel information into the preset database.
The invention also proposes a device comprising:
one or more processors; and
one or more machine readable media having instructions stored thereon that, when executed by the one or more processors, cause the apparatus to perform a method as described above.
The present invention also proposes one or more machine-readable media having instructions stored thereon, which when executed by one or more processors, cause the processors to perform the method as described above.
The embodiment of the invention has the following advantages: in the embodiment of the invention, whether the video stream channel changes is judged through the video network terminal, if so, the video network terminal inquires the channel information of the video stream, and then the video network terminal judges whether the current video stream channel information meets the preset condition, so that whether the terminal identification of the video network terminal is redrawn is judged. The video network terminal judges whether to redraw the terminal identification of the video network terminal or not, so that the video network terminal is prevented from redrawing the terminal identification of the video network terminal for each video stream channel, the workload of the video network terminal can be greatly reduced, and the working efficiency of the video network terminal in split-screen display can be improved; and because the terminal identification of original video networking terminal can be preserved in the video networking terminal, when carrying out the split screen at every turn and switching, the video networking terminal of the video stream that corresponds as the passageway is unchangeable, and the terminal identification of the video networking terminal that this video stream corresponds on the screen can not flash, only can stop on original screen position, also can improve user's use and experience, reduces the split screen and switches the influence to original user.
Drawings
FIG. 1 is a schematic networking diagram of a video network of the present invention;
FIG. 2 is a schematic diagram of a hardware architecture of a node server according to the present invention;
fig. 3 is a schematic diagram of a hardware structure of an access switch of the present invention;
fig. 4 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway according to the present invention;
FIG. 5 is a flow chart of the steps of a video streaming screen display method in accordance with an embodiment of the present invention;
FIG. 6 is a flow chart of the steps of a video stream screen display method in accordance with an embodiment of the present invention;
FIG. 7 is a flowchart illustrating steps performed by a video networking terminal to determine whether channel information of a current video stream satisfies a predetermined condition in accordance with an embodiment of the present invention;
fig. 8 is a flowchart of the steps of comparing whether the channel information of the current video stream is the same as the video stream channel information obtained last time by the video networking terminal in the embodiment of the present invention;
fig. 9 is a schematic structural diagram of a video stream split-screen display device according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of internet applications to high-definition video, and high-definition faces each other.
The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, Personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast through a television or a computer.
To better understand the embodiments of the present invention, the following description refers to the internet of view:
some of the technologies applied in the video networking are as follows:
network Technology (Network Technology)
Network technology innovation in video networking has improved over traditional Ethernet (Ethernet) to face the potentially enormous video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network Circuit Switching (Circuit Switching), the Packet Switching is adopted by the technology of the video networking to meet the Streaming requirement. The video networking technology has the advantages of flexibility, simplicity and low price of packet switching, and simultaneously has the quality and safety guarantee of circuit switching, thereby realizing the seamless connection of the whole network switching type virtual circuit and the data format.
Switching Technology (Switching Technology)
The video network adopts two advantages of asynchronism and packet switching of the Ethernet, eliminates the Ethernet defect on the premise of full compatibility, has end-to-end seamless connection of the whole network, is directly communicated with a user video network terminal, and directly bears an IP data packet. The user data does not require any format conversion across the entire network. The video networking is a higher-level form of the Ethernet, is a real-time exchange platform, can realize the real-time transmission of the whole-network large-scale high-definition video which cannot be realized by the existing Internet, and pushes a plurality of network video applications to high-definition and unification.
Server Technology (Server Technology)
The server technology on the video networking and unified video platform is different from the traditional server, the streaming media transmission of the video networking and unified video platform is established on the basis of connection orientation, the data processing capacity of the video networking and unified video platform is independent of flow and communication time, and a single network layer can contain signaling and data transmission. For voice and video services, the complexity of video networking and unified video platform streaming media processing is much simpler than that of data processing, and the efficiency is greatly improved by more than one hundred times compared with that of a traditional server.
Storage Technology (Storage Technology)
The super-high speed storage technology of the unified video platform adopts the most advanced real-time operating system in order to adapt to the media content with super-large capacity and super-large flow, the program information in the server instruction is mapped to the specific hard disk space, the media content is not passed through the server any more, the media content is instantly and directly transmitted to the user video network terminal, and the user waiting time is less than 0.2 second. The optimized sector distribution greatly reduces the mechanical motion of the magnetic head track seeking of the hard disk, the resource consumption only accounts for 20% of that of the IP internet of the same grade, but concurrent flow which is 3 times larger than that of the traditional hard disk array is generated, and the comprehensive efficiency is improved by more than 10 times.
Network Security Technology (Network Security Technology)
The structural design of the video network completely eliminates the network security problem troubling the internet structurally by the modes of independent service permission control each time, complete isolation of equipment and user data and the like, generally does not need antivirus programs and firewalls, avoids the attack of hackers and viruses, and provides a structural carefree security network for users.
Service Innovation Technology (Service Innovation Technology)
The unified video platform integrates services and transmission, and is not only automatically connected once whether a single user, a private network user or a network aggregate. The user video network terminal, the set-top box or the PC are directly connected to the unified video platform to obtain various multimedia video services in various forms. The unified video platform adopts a menu type configuration table mode to replace the traditional complex application programming, can realize complex application by using very few codes, and realizes infinite new service innovation.
Networking of the video network is as follows:
the video network is a centralized control network structure, and the network can be a tree network, a star network, a ring network and the like, but on the basis of the centralized control node, the whole network is controlled by the centralized control node in the network.
As shown in fig. 1, the video network is divided into an access network and a metropolitan network.
The devices of the access network part can be mainly classified into 3 types: node server, access switch, video network terminal (including various set-top boxes, coding boards, memories, etc.). The node server is connected with an access switch, and the access switch can be connected with a plurality of video networking terminals and can be connected with an Ethernet.
The node server is a node which plays a centralized control function in the access network and can control the access switch and the video network terminal. The node server can be directly connected with the access switch or directly connected with the video networking terminal.
Similarly, devices of the metropolitan network portion may also be classified into 3 types: a metropolitan area server, a node switch and a node server. The metro server is connected to a node switch, which may be connected to a plurality of node servers.
The node server is a node server of the access network part, namely the node server belongs to both the access network part and the metropolitan area network part.
The metropolitan area server is a node which plays a centralized control function in the metropolitan area network and can control a node switch and a node server. The metropolitan area server can be directly connected with the node switch or directly connected with the node server.
Therefore, the whole video network is a network structure with layered centralized control, and the network controlled by the node server and the metropolitan area server can be in various structures such as tree, star and ring.
The access network part can form a unified video platform (the part in the dotted circle), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.
Video networking device classification
1.1 devices in the video network of the embodiment of the present invention can be mainly classified into 3 types: servers, switches (including ethernet gateways), video networking terminals (including various set-top boxes, code boards, memory, etc.). The video network as a whole can be divided into a metropolitan area network (or national network, global network, etc.) and an access network.
1.2 wherein the devices of the access network part can be mainly classified into 3 types: node servers, access switches (including ethernet gateways), video networking terminals (including various set-top boxes, code boards, memories, etc.).
The specific hardware structure of each access network device is as follows:
a node server:
as shown in fig. 2, the system mainly includes a network interface module 201, a switching engine module 202, a CPU module 203, and a disk array module 204;
the network interface module 201, the CPU module 203, and the disk array module 204 all enter the switching engine module 202; the switching engine module 202 performs an operation of looking up the address table 205 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of the corresponding packet buffer 206 based on the packet's steering information; if the queue of the packet buffer 206 is nearly full, it is discarded; the switching engine module 202 polls all packet buffer queues for forwarding if the following conditions are met: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero. The disk array module 204 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; the CPU module 203 is mainly responsible for protocol processing with an access switch and a video network terminal (not shown in the figure), configuring an address table 205 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring the disk array module 204.
The access switch:
as shown in fig. 3, the network interface module mainly includes a network interface module (a downlink network interface module 301 and an uplink network interface module 302), a switching engine module 303 and a CPU module 304;
wherein, the packet (uplink data) coming from the downlink network interface module 301 enters the packet detection module 305; the packet detection module 305 detects whether the Destination Address (DA), the Source Address (SA), the packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 303, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 302 enters the switching engine module 303; the incoming data packet of the CPU module 304 enters the switching engine module 303; the switching engine module 303 performs an operation of looking up the address table 306 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 303 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 307 in association with the stream-id; if the queue of the packet buffer 307 is nearly full, it is discarded; if the packet entering the switching engine module 303 is not from the downlink network interface to the uplink network interface, the data packet is stored in the queue of the corresponding packet buffer 307 according to the guiding information of the packet; if the queue of the packet buffer 307 is nearly full, it is discarded.
The switching engine module 303 polls all packet buffer queues, which in this embodiment of the present invention is divided into two cases:
if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) obtaining a token generated by a code rate control module;
if the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.
The rate control module 308 is configured by the CPU module 304, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.
The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.
Ethernet protocol conversion gateway：
As shown in fig. 4, the apparatus mainly includes a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403, a CPU module 404, a packet detection module 405, a rate control module 408, an address table 406, a packet buffer 407, a MAC adding module 409, and a MAC deleting module 410.
Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;
the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding video network terminal according to the video network destination address DA of the packet, adds the ethernet MAC DA of the video network terminal, the MAC SA of the ethernet protocol gateway, and the ethernet length or frame type, and sends the packet.
The other modules in the ethernet protocol gateway function similarly to the access switch.
The video network terminal:
the system mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and decoding engine module and a CPU module; the coding board mainly comprises a network interface module, a video and audio coding engine module and a CPU module; the memory mainly comprises a network interface module, a CPU module and a disk array module.
1.3 devices of the metropolitan area network part can be mainly classified into 2 types: node server, node exchanger, metropolitan area server. The node switch mainly comprises a network interface module, a switching engine module and a CPU module; the metropolitan area server mainly comprises a network interface module, a switching engine module and a CPU module.
2. Video networking packet definition
2.1 Access network packet definition
The data packet of the access network mainly comprises the following parts: destination Address (DA), Source Address (SA), reserved bytes, payload (pdu), CRC.
As shown in the following table, the data packet of the access network mainly includes the following parts:
| DA | SA | Reserved | Payload | CRC |
wherein:
the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (such as various protocol packets, multicast data packets, unicast data packets, etc.), there are 256 possibilities at most, the second byte to the sixth byte are metropolitan area network addresses, and the seventh byte and the eighth byte are access network addresses;
the Source Address (SA) is also composed of 8 bytes (byte), defined as the same as the Destination Address (DA);
the reserved byte consists of 2 bytes;
the payload part has different lengths according to different types of datagrams, and is 64 bytes if the datagram is various types of protocol packets, and is 32+1024 or 1056 bytes if the datagram is a unicast packet, of course, the length is not limited to the above 2 types;
the CRC consists of 4 bytes and is calculated in accordance with the standard ethernet CRC algorithm.
2.2 metropolitan area network packet definition
The topology of a metropolitan area network is a graph and there may be 2, or even more than 2, connections between two devices, i.e., there may be more than 2 connections between a node switch and a node server, a node switch and a node switch, and a node switch and a node server. However, the metro network address of the metro network device is unique, and in order to accurately describe the connection relationship between the metro network devices, parameters are introduced in the embodiment of the present invention: a label to uniquely describe a metropolitan area network device.
In this specification, the definition of the Label is similar to that of the Label of MPLS (Multi-Protocol Label Switch), and assuming that there are two connections between the device a and the device B, there are 2 labels for the packet from the device a to the device B, and 2 labels for the packet from the device B to the device a. The label is classified into an incoming label and an outgoing label, and assuming that the label (incoming label) of the packet entering the device a is 0x0000, the label (outgoing label) of the packet leaving the device a may become 0x 0001. The network access process of the metro network is a network access process under centralized control, that is, address allocation and label allocation of the metro network are both dominated by the metro server, and the node switch and the node server are both passively executed, which is different from label allocation of MPLS, and label allocation of MPLS is a result of mutual negotiation between the switch and the server.
As shown in the following table, the data packet of the metro network mainly includes the following parts:
| DA | SA | Reserved | label (R) | Payload | CRC |
Namely Destination Address (DA), Source Address (SA), Reserved byte (Reserved), tag, payload (pdu), CRC. The format of the tag may be defined by reference to the following: the tag is 32 bits with the upper 16 bits reserved and only the lower 16 bits used, and its position is between the reserved bytes and payload of the packet.
Referring to fig. 5, a flowchart illustrating steps of a video stream screen display method according to the present invention is shown, and is applied to a video network terminal, where the video network terminal is configured to receive a video stream, and the method specifically may include:
in this embodiment, can be that the video networking terminal detects the video stream channel by oneself and whether changes, the video stream video networking terminal can be in the interval time, carry out real-time detection to the video stream many times, also can be that the video networking terminal needs to carry out the networking activity, send the switching and divide the screen instruction to the video networking terminal, the video networking terminal receives and switches after dividing the screen instruction, the video networking terminal can divide the screen instruction through switching, judge whether the video stream channel changes, the networking activity can be many people video conference, video sharing or live broadcast interdynamic etc. every video networking terminal can receive a plurality of video streams simultaneously, divide the screen switching operation on the display screen to a plurality of video streams.
The screen switching and splitting instruction can be a screen switching and splitting instruction issued by a user or a screen switching and splitting instruction sent by other video networking terminals. If the user sends a screen splitting switching instruction to the video networking terminal, after the video networking terminal receives the screen splitting switching instruction, the video networking terminal sends a networking working instruction to other target video networking terminals and receives video stream data sent by other video networking terminals.
When the video networking terminal receives the video stream, one video stream is received through one corresponding video stream channel, namely, each video stream has one corresponding channel, and the number of the channels corresponds to the number of the video streams, and also can correspond to the number of other video networking terminals connected with the video networking terminal. The video network terminal displays the video stream of each video stream channel in different areas of a screen to realize split screen.
in this embodiment, the video stream channel changes may be that a new video stream is added and a split screen needs to be performed, or that an original video stream exits and a split screen needs to be performed, or that a new video stream replaces an original video stream. Meanwhile, the workload of switching the split screens of the video networking terminals can be reduced, and the load of the video networking terminals is reduced.
The video network terminal can inquire the channel information of the video stream through the current video stream, can inquire the video network terminal corresponding to the video stream, and can inquire the video stream channel information of the video network terminal corresponding to the video stream. Determining that each video stream has channel information corresponding to the video stream, and when a video stream is switched in or switched out or replaced, acquiring the channel information of a new video stream, or keeping original information of an original unchanged video stream unchanged.
The original video stream channel information can be stored in a video network terminal memory where the video stream is located, and can also be stored in a video network terminal database. If the video stream is stored in the memory of the video networking terminal, the video networking terminal sends the channel information of the video stream and the video stream to other video networking terminals which are working in networking each time when sending the video stream; and if the channel information is stored in the video network terminal database, the video network terminal queries and calls the channel information corresponding to the received video stream channel from the database.
and 505, if the preset condition is not met, the video network terminal redraws the terminal identifier of the video network terminal of the channel.
When the video stream channel changes, the video networking terminal compares the currently displayed video stream channel information of each video stream one by one to determine whether the currently displayed video stream channel information meets the preset condition, and the video networking terminal can know whether the channel is the video stream channel which is used originally only by judging whether the channel information meets the preset condition because the channel information of the original unchanged video stream channel is kept unchanged, and if the channel information meets the preset condition, namely the video stream channel is the original video stream channel, the original terminal identification of the video networking terminal can be adopted without drawing the terminal identification of the video networking terminal; if the preset condition is not met, that is, the video stream channel is a new video stream channel, a new terminal identifier of the video network terminal needs to be drawn for the new video stream channel.
In this embodiment, the preset condition may be a terminal identifier of a video network terminal corresponding to the video stream channel, a data identifier of the video stream, an address or ID information of the video stream, an interface tag of the video stream channel, or the like.
In this embodiment, whether the video stream channel changes is judged through the video networking terminal, if so, the video networking terminal inquires and acquires channel information of the video stream, and then the video networking terminal judges whether the current video stream channel information meets a preset condition, so that whether the terminal identification of the video networking terminal is renewed is judged. The video network terminal judges whether to redraw the terminal identification or not, so that the complicated operation that the video network terminal redraws the terminal identification for each video stream channel under the condition that any video stream channel is changed can be avoided, the workload of the video network terminal can be reduced, and the working efficiency of switching the split screens of the video network terminal is improved; and the terminal identification of original video networking terminal can be preserved in the video networking terminal, when carrying out the split screen at every turn and showing, the video networking terminal that corresponds as the video stream channel is unchangeable, and the terminal identification that this video networking terminal shows the video networking terminal on the screen is unchangeable, only can stop on original screen position, also can improve user's use and experience, reduces the influence of terminal identification scintillation to the user when the split screen switches.
Referring to fig. 6, a flowchart of steps of a video stream screen display method according to the present invention is shown, and is applied to a video network terminal, and the video network terminal receives a video stream, and the method may include the following steps:
601, when the video network terminal displays a plurality of video streams, the video network terminal judges whether a video stream channel changes;
in this embodiment, when the video network terminal displays a plurality of video streams on the screen, the video network terminal often needs to receive the video streams sent by the plurality of video network terminals, and each video stream corresponds to one video stream channel. The video network terminal can automatically detect and judge whether the video stream channel changes or not, and can detect all the video stream channels in a preset time interval, so that each video stream is detected in real time, and the preset time interval can be modified according to actual application requirements. The video network terminal can also be a switching split screen instruction sent to the video network terminal by the user according to the use requirements of the user, for example, the user needs to perform networking activities, and the video network terminal detects whether the video stream channel changes or not after receiving the switching split screen instruction.
The screen switching and splitting instruction can be sent to the video networking terminal by a user or sent by other video networking terminals needing networking activity; when a user needs to perform video networking, the user issues a screen splitting switching instruction, and the video networking terminal receives the screen splitting switching instruction and sends the screen splitting switching instruction to other target video networking terminals. In this embodiment, the video networking terminal may receive the switching split screen instruction, and may also send the switching split screen instruction.
Whether the video stream channel changes or not is judged through the video network terminal, whether the video network terminal corresponding to the video stream channel changes or not can be judged, if the video network terminal changes, the terminal identification needs to be modified, on one hand, the workload of compiling the terminal identification by the video network terminal can be reduced, and on the other hand, the influence of the terminal identification on a user can be reduced.
in this embodiment, the channel information may include a channel identifier and a terminal identifier of a video stream channel corresponding to a video stream channel terminal, and the channel information may be ID information of the video stream channel, where each video stream channel corresponds to one video stream network terminal, and each video stream network terminal corresponds to one ID, so that each video stream channel has one corresponding ID. By inquiring the corresponding ID of each video stream channel, each video stream channel can be marked through ID information, and the video network terminal corresponding to the video stream can be inquired through inquiring the ID. In this embodiment, the terminal of the video network may also query the corresponding code or serial number of the video stream channel.
By inquiring the ID corresponding to the video stream, the information of the ID can be inquired when the video stream identification is detected every time, the video networking terminal corresponding to the video stream does not need to be inquired, and the inquiring efficiency is improved.
when each video stream is displayed on the screen, a terminal identifier of the video networking terminal corresponding to one video stream is displayed on the corresponding screen, the terminal identifier of the video networking terminal can be the name of the video networking terminal, the serial number of the video networking terminal, the ID information of the video networking terminal, and when the video networking terminal is accessed into the video streams of other video networking terminals, each video stream video networking terminal is coded and the like.
Each video stream video network terminal can be marked through the terminal identification of the video network terminal, and the terminal identification of each video network terminal can be displayed in different places on the screen, such as the upper left corner or the upper right corner of the screen.
the video network terminal can know whether the terminal identification of the video network terminal needs to be redrawn for the video stream by judging whether the channel information of the current video stream meets the preset condition.
In this embodiment, the preset condition may be whether the ID information is the same, whether the terminal identifiers of the video networking terminals are the same, whether the codes of the video networking terminals are the same, or the like.
Referring to fig. 7, which is a flowchart illustrating steps of determining whether channel information of a current video stream satisfies a preset condition by a video network terminal in the implementation of the present invention, step 604 may include the following sub-steps:
and a substep 6041, comparing the channel information of the current video stream acquired by the video networking terminal with the channel information of the video stream acquired last time, and determining whether the channel information is the same.
In this embodiment, the video network terminal may determine whether the terminal identifier needs to be redrawn for the current video stream by determining whether the channel information of the current video stream is the same as the channel information of the video stream acquired last time. If the channel information of the current video stream is the same as the video stream channel information obtained last time, namely the current video stream channel is not changed, a new terminal identification can not be drawn, the workload of the video network terminal is reduced, and the efficiency of split screen display is improved.
Referring to fig. 8, which shows a flowchart of steps of comparing whether the channel information of the current video stream is the same as the video stream channel information obtained last time by the video networking terminal in the embodiment of the present invention, sub-step 6041 may further include the following sub-steps:
in substep 60412, if they are the same, the terminal of the video network compares the terminal identifier of the video network terminal corresponding to the current video stream channel with the terminal identifier of the video network terminal corresponding to the video stream channel obtained last time by the video network terminal;
and comparing the video stream channel identifier of the current channel with the terminal identifier of the video network terminal, and determining whether the channel identifier of the current channel obtained last time is the same as the terminal identifier of the video network terminal, so that whether the video stream of the current channel is the original video stream can be definitely known, if so, the terminal identifier does not need to be drawn again on the video stream, and the detection can be rapidly carried out.
During detection, each channel is detected one by one until all channels are completely detected, so that detection omission can be avoided, the detection sequence can be adjusted according to practical application,
when the video network terminal acquires the channel information of the current video stream and the channel information acquired last time corresponding to the current video stream channel, whether the current video stream is changed or not can be known by comparing whether the channel information of the current video stream and the channel information of the last time corresponding to the current video stream channel are the same or not.
When the video network terminal performs split-screen switching display, the original video stream channel may be replaced by a new video stream channel, that is, the original video stream of the video network terminal is replaced by a new video stream of the video network terminal, so that the video streams received by the video network terminal are different, the information of the video network terminal displayed on the screen is also different, and the terminal identifier of the displayed video network terminal needs to be redrawn.
By inquiring the ID information of the video stream, if the ID information changes, it can be known that the current video stream has changed, and the video networking terminal needs to redraw the terminal identifier of the video networking terminal corresponding to the video stream. And the ID is inquired to judge whether the received video stream of the video networking terminal changes more quickly, and the efficiency is higher.
605, if the preset condition is met, the terminal does not redraw the terminal identifier of the video network terminal of the channel;
and 606, if the preset condition is not met, the terminal of the video network redraws the terminal identification of the video network terminal of the channel.
In this embodiment, step 606 may further include:
and the video network terminal displays the redrawing terminal identification on a preset screen corresponding to the channel.
After the terminal identifier is redrawn by the video network terminal, a new video network terminal identifier can be displayed at a corresponding position of a preset screen corresponding to the channel, wherein the position can be the middle position, the left upper corner, the right upper corner or the left lower corner of the screen, or the position of the original terminal identifier, and the displayed position can be adjusted according to the actual condition.
In this embodiment, the method further includes a preset database connected to the video networking terminal, and the method may further include:
and the video network terminal records the channel information of the current video stream and stores the channel information in the preset database.
After the video networking terminal acquires the channel information of the current video stream, if the ID information and the terminal identification of the current video stream are acquired, the acquired ID information and the terminal identification are recorded and stored in a preset database, and when the next split-screen display is carried out and new video stream channel information needs to be compared, the video networking terminal can directly extract the previous channel information from the database. The method is convenient to manage, and the efficiency of drawing the terminal identification of the video network terminal can be improved.
In this embodiment, the technician can also manage the video networking terminal conveniently by querying and calling the information of each video streaming video networking terminal in the database.
In this embodiment, whether the number of the video stream channels changes is judged by the video networking terminal, if so, the video networking terminal inquires channel information of the video stream, and then the video networking terminal judges whether the ID information corresponding to the current video stream and the terminal identifier of the video networking terminal are the same as the terminal identifier of the video networking terminal and the video stream ID information corresponding to the channel obtained last time by the video networking terminal, so as to judge whether the terminal identifier of the video networking terminal is redrawn. The method can reduce the workload of drawing the terminal identification by the video network terminal and improve the working efficiency of switching the split screens by the video network terminal; and because original terminal identification can be preserved in the video networking terminal, when dividing the screen and switching at every turn, the video stream video networking terminal that receives when the passageway is unchangeable, and this video stream video networking terminal identification on the screen can not flash, only can stop on original screen position, also can improve user's use and experience, reduces and divides the screen and switch the influence to original user.
Referring to fig. 9, a block diagram of a mechanism of a video stream split-screen display device in an embodiment of the present invention is shown, which may specifically include the following modules:
a video stream detection module 901, configured to determine whether a video stream channel changes when the video networking terminal displays multiple video streams;
if the video stream channel changes, the video stream detection module 901 queries channel information of the video stream;
the information management module 902 is configured to determine whether current video stream channel information meets a preset condition;
if the preset condition is met, the information management module 902 does not redraw the terminal identifier of the video network terminal of the channel;
if the preset condition is not met, the information management module 902 redraws the terminal identifier of the video network terminal of the channel;
in this embodiment, the video stream detection module 901 determines whether the video stream channel changes, if the video stream channel changes, the video stream detection module 901 queries and acquires channel information of the video stream, then the information management module 902 determines whether the current video stream channel information meets a preset condition, and when the preset condition is met, the information management module 902 does not redraw the terminal identifier of the video network terminal of the channel; when the preset condition is not met, the information management module 902 draws a terminal identifier of the video network terminal of the channel; the whole process is efficient, and the terminal identification can be drawn quickly.
In this embodiment, the video stream detection module 901 may include the following modules:
the number detection module 9011 is configured to count the number of channels of the current video stream, and query a channel identifier of the current video stream channel;
and the identifier obtaining module 9012 is configured to obtain, through the channel identifier of the video stream channel, a terminal identifier of the video networking terminal corresponding to the video stream channel.
In this embodiment, the information management module 902 may include the following modules:
the information acquiring module 9021 is configured to acquire channel information of a current video stream and channel information of a previous video stream;
the information comparing module 9022 is configured to compare whether channel information of the current video stream is the same as video stream channel information acquired last time.
In this embodiment, the information comparing module 9022 further includes the following modules:
the ID identification comparing module 90221 is configured to compare whether the ID of the current video stream channel is the same as the ID of the video stream channel obtained last time by the video network terminal.
And the terminal identifier comparing module 90222 is configured to compare whether the terminal identifier of the video networking terminal corresponding to the current video stream channel is the same as the terminal identifier of the video networking terminal corresponding to the video stream channel obtained last time.
In this embodiment, the information management module 902 may further include the following modules:
and the identifier display module 9023 is configured to display the terminal identifier of the redrawn video networking terminal on a preset screen corresponding to the channel.
In this embodiment, the video stream split-screen display device may further include the following modules:
and the recording module 903 is configured to record channel information of the current video stream, and store the channel information in the preset database.
In this embodiment, the video stream detection module 901 determines whether the video stream channel changes; if the video stream channel changes, the video stream detection module 901 queries channel information of the video stream; then the information management module 902 determines whether the current video stream channel information meets a preset condition; if the preset condition is not met, the terminal identification of the video network terminal of the channel is redrawn, so that the device can improve the efficiency of the video network terminal in drawing the terminal identification and reduce the workload of the video network terminal; and original terminal identification can be preserved in the video networking terminal, when dividing the screen and switching at every turn, the video networking terminal that corresponds as the passageway is unchangeable, and the terminal identification of the video networking terminal that this video stream corresponds on the screen can not flash, only can stop on original screen position, also can improve user's use and experience.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
An embodiment of the present invention further provides an apparatus, including:
one or more processors; and
one or more machine-readable media having instructions stored thereon, which when executed by the one or more processors, cause the apparatus to perform methods as described in embodiments of the invention.
Embodiments of the invention also provide one or more machine-readable media having instructions stored thereon, which when executed by one or more processors, cause the processors to perform the methods described in embodiments of the invention.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, video networking end devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing end-point device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing end-point device, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing video networking terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing end-point device to cause a series of operational steps to be performed on the computer or other programmable end-point device to produce a computer implemented process such that the instructions which execute on the computer or other programmable end-point device provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or end-point device that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or end-point device. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or end-point device on an internet of view that includes the element.
The method and the device for displaying the video stream screen provided by the invention are described in detail, and the principle and the implementation mode of the invention are explained by applying specific examples in the text, and the description of the above examples is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A video stream screen display method is applied to a video network terminal, and is characterized by comprising the following steps:
when the video networking terminal displays a plurality of video streams, the video networking terminal judges whether a video stream channel changes or not;
if the video stream channel changes, the video networking terminal inquires and acquires channel information of the video stream;
the video network terminal judges whether the channel information of the video stream is the same as the video stream channel information obtained last time one by one;
if the channel is the same as the channel, the terminal identification of the video network terminal of the channel is not drawn again by the video network terminal;
if the channel is different, the terminal identification of the video network terminal of the channel is redrawn by the video network terminal;
the channel information includes a channel identifier and a terminal identifier of a video network terminal corresponding to the video stream channel, and the video network terminal queries and acquires the channel information of the video stream, including:
the video network terminal counts the channel number of the current video stream and inquires the channel identification of the current video stream channel;
and the video network terminal acquires the terminal identification of the video network terminal corresponding to the current video stream channel through the channel identification of the current video stream channel.
2. The method according to claim 1, wherein after the video networking terminal determines one by one whether the channel information of the video stream is the same as the video stream channel information obtained last time, the method further comprises:
the video network terminal compares the channel identification of the current video stream channel with the channel identification of the video stream channel obtained last time by the video network terminal to determine whether the channel identification is the same;
if the video stream channel is the same as the video stream channel, the video network terminal compares the terminal identification of the video network terminal corresponding to the current video stream channel with the terminal identification of the video network terminal corresponding to the video stream channel obtained last time by the video network terminal to determine whether the terminal identification is the same.
3. The method of claim 2, wherein the terminal identifier of the video network terminal redrawing the channel comprises:
and the video network terminal displays the terminal identification of the redrawing video network terminal on a preset screen corresponding to the channel.
4. The method of claim 2, further comprising:
and the video network terminal records the channel information of the current video stream and stores the channel information in a preset database.
5. A video stream screen display device is applied to a video network terminal and is characterized by comprising:
the video stream detection module is used for judging whether a video stream channel changes or not when the video networking terminal displays a plurality of video streams;
if the video stream channel changes, inquiring and acquiring channel information of the video stream;
the information management module is used for judging whether the channel information of the video stream is the same as the video stream channel information obtained last time one by one;
if the channel is the same as the terminal identifier of the video network terminal, the information management module does not redraw the terminal identifier of the video network terminal of the channel;
if the channel is different, the information management module redraws the terminal identification of the video network terminal of the channel;
the channel information includes a channel identifier and a terminal identifier of a video network terminal corresponding to the video stream channel, and the video stream detection module includes:
the quantity detection module is used for counting the channel quantity of the current video stream and inquiring the channel identification of the current video stream channel;
and the identification acquisition module is used for acquiring the terminal identification of the video network terminal corresponding to the video stream channel through the channel identification of the video stream channel.
6. The apparatus for displaying a video stream in a split screen manner according to claim 5, wherein the information comparison module further comprises:
the ID identification comparison module is used for comparing whether the channel identification of the current video stream channel is the same as the channel identification of the video stream channel obtained last time by the video network terminal;
and the terminal identification comparison module is used for comparing whether the terminal identification of the video network terminal corresponding to the current video stream channel is the same as the terminal identification of the video network terminal corresponding to the video stream channel obtained last time.
7. The apparatus for displaying a video stream in a split screen manner according to claim 6, wherein the information management module further comprises:
and the identification display module is used for displaying the redrawn terminal identification of the video network terminal on a preset screen corresponding to the channel.
8. The video stream split-screen display device according to claim 6, further comprising:
and the recording module is used for recording the channel information of the current video stream and storing the channel information into a preset database.
9. An apparatus, comprising:
one or more processors; and
one or more machine-readable media having instructions stored thereon that, when executed by the one or more processors, cause the apparatus to perform the methods of claims 1-4.
10. One or more machine-readable media having instructions stored thereon, which when executed by one or more processors, cause the processors to perform the method recited in claims 1-4.
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| JP6384095B2 (en) * | 2013-06-06 | 2018-09-05 | 株式会社リコー | Transmission terminal, program, image display method, transmission system |
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