CN104980411B - Video call control method, server, terminal and video call system - Google Patents
Video call control method, server, terminal and video call system Download PDFInfo
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- CN104980411B CN104980411B CN201410148603.6A CN201410148603A CN104980411B CN 104980411 B CN104980411 B CN 104980411B CN 201410148603 A CN201410148603 A CN 201410148603A CN 104980411 B CN104980411 B CN 104980411B
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Abstract
The invention discloses a control method of video call, which comprises the following steps: the server receives network quality information sent by each terminal; the server acquires the network quality information with the worst network quality of each terminal according to the network quality information sent by each terminal; the server adjusts the signal transmission parameter value of the video call of each terminal according to the network quality information with the worst network quality; and the server sends the signal transmission parameter values of the video calls of the terminals to the terminals. The invention also discloses a control server, a terminal and a system for the video call. The invention ensures the normal operation of the video call.
Description
Technical Field
The present invention relates to the field of network technologies, and in particular, to a method, a server, a terminal, and a video call system for controlling a video call.
Background
Video call is divided into two modes of an IP line and a general telephone line, and generally refers to a communication mode for transmitting voice and images in real time between terminals based on internet and mobile internet.
With the development of the mobile internet, people can communicate in various network modes, such as 2G, 3G, 4G and WIFI. However, the network quality corresponding to different network modes is also different, and the network quality of video call under WIFI is better than that of video call under other network modes. Therefore, in the process of video call, if the network quality is inconsistent after the network modes are switched by each terminal, the normal operation of the video call is affected.
Disclosure of Invention
The embodiment of the invention mainly aims to provide a control method, a server, a terminal and a video call system for video call, and aims to ensure the normal operation of the video call.
In order to achieve the above object, an embodiment of the present invention provides a method for controlling a video call, including the following steps:
the server receives network quality information sent by each terminal;
the server acquires the network quality information with the worst network quality of each terminal according to the network quality information sent by each terminal;
the server adjusts the signal transmission parameter value of the video call of each terminal according to the network quality information with the worst network quality;
and the server sends the signal transmission parameter values of the video calls of the terminals to the terminals.
Further, an embodiment of the present invention further provides a method for controlling a video call, including the following steps:
each terminal which has established the video call acquires own network quality information;
sending the acquired network quality information to a server; the server adjusts the signal transmission parameter value of the video call of each terminal according to the network quality information sent by each terminal;
each terminal receives a signal transmission parameter value sent by a server;
and controlling the video call according to the signal transmission parameters.
Further, an embodiment of the present invention further provides a control server for video call, including:
the receiving module is used for receiving the network quality information sent by each terminal;
the comparison module is used for acquiring the network quality information with the worst network quality of each terminal according to the network quality information sent by each terminal;
the control module is used for adjusting the signal transmission parameter value of the video call of each terminal according to the network quality information with the worst network quality;
and the sending module is used for sending the signal transmission parameter values of the video calls of the terminals to the terminals.
Further, an embodiment of the present invention further provides a terminal for video call, including:
the information acquisition module is used for acquiring the network quality information of the information acquisition module;
the communication module is used for sending the acquired network quality information to a server; the server adjusts the signal transmission parameter value of the video call of each terminal according to the network quality information sent by each terminal; the server is also used for receiving signal transmission parameter values sent by the server;
and the control module is used for controlling the video call according to the signal transmission parameters.
Further, an embodiment of the present invention further provides a video call system, including the control server with the above structure and at least two terminals with the above structure, where the terminals communicate with the control server, and the control server controls video calls among the terminals.
The embodiment of the invention ensures the quality of the video call by monitoring the network quality condition of each terminal in the video call process and adjusting the transmission of the video data of each terminal according to the change of the network quality.
Drawings
FIG. 1 is a schematic diagram of a video call system according to an embodiment of the present invention;
fig. 2 is a functional block diagram of a control server for video call according to a first embodiment of the present invention;
fig. 3 is a functional block diagram of a control server for video call according to a second embodiment of the present invention;
FIG. 4 is a functional block diagram of a preferred embodiment of a terminal for video call;
FIG. 5 is a flowchart illustrating a control method for video call according to a first embodiment of the present invention;
fig. 6 is a flowchart illustrating a control method for video call according to a second embodiment of the present invention;
fig. 7 is a flowchart illustrating a control method for video call according to a third embodiment of the present invention;
fig. 8 is a flowchart illustrating a control method for video call according to a fourth embodiment of the present invention;
fig. 9 is a flowchart illustrating a fifth embodiment of a method for controlling a video call according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the specific embodiments in the specification. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to solve the problem that the video call cannot be carried out with guaranteed quality and even cannot be carried out and is stopped when the network capability is reduced due to the switching of network types or other reasons in the process of carrying out the video call by the terminal, the invention provides a control server of the video call. As shown in fig. 1, terminal 2, and terminal 3 may all be connected via a network and then perform a video call. The control server 100 may communicate with each terminal to receive the network quality information uploaded by each terminal, and adjust the signal transceiving of each terminal according to the network quality information to ensure the normal operation of the video call.
The terminal 1, the terminal 2 and the terminal 3 are terminals such as a PC, a tablet computer, an IPAD, a mobile phone or a PDA, which can be networked to realize a video call function. The video call can be a 3G video call between mobile phones, and also can be a video call, such as a video chat, performed by each terminal through third-party software. It is to be understood that the network connecting the terminals and controlling the server 100 may be the same network or different networks.
As shown in fig. 2, the control server 100 of the present invention includes:
a receiving module 11, configured to receive network quality information sent by each terminal;
a comparing module 12, configured to obtain network quality information with the worst network quality of each terminal according to the network quality information sent by each terminal;
the control module 13 is configured to adjust a signal transmission parameter value of a video call of each terminal according to the network quality information with the worst network quality;
and a sending module 14, configured to send the signal transmission parameter value of the video call of each terminal to each terminal.
Each terminal periodically detects network quality information of each transmission and reception signal during the video call and uploads it to the control server 100. The network quality information may include an uplink packet loss rate, a network delay, a network bandwidth limitation imposed by an operator, and the like, and the influencing factors of the change of the network quality are the switching of the network type and the change of the signal strength. The receiving module 11 is configured to collect network quality information uploaded by each terminal, classify the network quality information, and identify the network quality information uploaded by each terminal performing the same video call. Then, the comparing module 12 compares the network quality information uploaded by each terminal performing the same video call to obtain the network quality information with the worst network quality. The control module 13 adjusts the video call signal transceiving conditions of the terminals to be consistent based on the worst network quality information. The adjustment parameters generated by the control module 13 will be transmitted to the terminals via the transmission module 14.
The embodiment of the invention ensures the quality of the video call by monitoring the network quality condition of each terminal in the video call process and adjusting the transmission of the video data of each terminal according to the change of the network quality.
The comparing module 12 is specifically configured to: and comparing the network quality information of each terminal according to a preset comparison rule, and determining the network quality information with the worst network quality. The preset comparison rule may perform an overall comparison on all the network quality information, or perform a comparison only with one or more network quality information. When the signal intensity of the current network coverage is reduced or the network type is switched, if the video data is still transmitted by using the current transmission parameters, the normal operation of the video call cannot be ensured. The terminal with the worst network quality will be found by the comparison module 12.
The control module 13 is specifically configured to: and adjusting the picture resolution and the signal transmission frame rate corresponding to the change of the network quality information according to the change of the network quality information with the worst network quality.
Specifically, the picture resolution and the frame rate of signal transmission corresponding to the current network quality may be adjusted according to the change of the network quality of the terminal with the network quality information with the worst network quality twice, for example, if the packet loss rate increases, the network delay increases, and the bandwidth limit decreases, the frame rate is decreased. And similarly, adjusting the signal transmission of each terminal according to the adjusted picture resolution and the signal transmission frame rate.
Further, in the control server for video call, the control module 13 is further configured to: when the adjusted image resolution is lower than an image resolution threshold or the adjusted signal transmission frame rate is lower than a signal transmission frame rate threshold, a control instruction for closing the image data transmission function is generated. The sending module 14 is further configured to: and sending the control instruction for closing the image data transmission function to each terminal. Alternatively, the control module 13 is further configured to: when the image data transmission function is closed and the adjusted image resolution is higher than an image resolution threshold, or the adjusted signal transmission frame rate is higher than a signal transmission frame rate threshold, a control instruction for opening the image data transmission function is generated. The sending module 14 is further configured to: and sending the control instruction for starting the image data transmission function to each terminal.
In the video call process, the control server can adjust the picture resolution and the signal transmission frame rate of each terminal according to the network quality change of each terminal, even control the opening or closing of the image transmission function, thereby not only ensuring the normal operation of the video call, but also automatically adjusting the quality of the video call along with the change of the current network of each terminal.
The following describes a control process of switching from the WIFI mode to the 3G mode in a video call. Terminal 1 and terminal 2 all carry out the video conversation under the WIFI mode, and in the video conversation process, terminal 1 has left the scope that WIFI can cover suddenly, and terminal 1 is switched to the 3G mode (also can be 4G mode) by the WIFI mode, and the quality of this terminal 1 current network also can descend thereupon this moment. The control server 100 monitors that the network quality of the terminal 1 is worse than that of the terminal 2, and therefore adjusts the signal transmission parameter of the terminal 2 according to the change of the network quality of the terminal 1, for example, the control server 2 switches from the WIFI mode to the 3G mode, or adjusts the picture resolution and the signal transmission frame rate of the terminal 2 to match the picture resolution and the signal transmission frame rate of the terminal 1.
When the quality of the current network of the terminal 1 continuously decreases, the control server 100 also continuously adjusts the signal transmission parameters of the terminal to ensure that the video call between the terminal 1 and the terminal 2 is normally performed. When the picture resolution and the signal transmission frame rate of the terminal 2 adjusted by the control server are correspondingly lower than the corresponding threshold values, the transmission function of the image data is controlled to be closed, and only the transmission of the voice data is reserved.
When the terminal 1 is switched from the 3G mode to the WIFI mode, the quality of the current network of the terminal 1 will increase again. The control server 100 monitors that the network quality of the terminal 2 is lower than the network quality of the terminal 1, and adjusts the signal transmission parameters of the terminal 1 according to the change of the network quality of the terminal 2, for example, controls the transmission function of the image data of the terminal 2 to be turned on, and adjusts the image resolution and the signal transmission rate of the terminal 2.
It is understood that the control server of the above embodiment can be implemented by software plus necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. As shown in fig. 3, the control server 100 includes: a processor 101, a memory 102, a user interface 103, a network interface 104, and a communication bus 105. The communication bus 105 is used for communication among the components in the local server, and the user interface 103 is used for receiving information input by a user, and can be a wired interface and a wireless interface, such as a keyboard, a mouse, and the like. The network interface 104 is used for controlling the server 100 to communicate with the outside, and may also include a wired interface and a wireless interface. Memory 102 may include one or more computer-readable storage media, and includes not only internal memory, but also external memory. The memory stores an operating system, a video call control application program, and the like. The processor 101 is configured to invoke the video call control application in the memory 102 to perform the following operations:
receiving network quality information sent by each terminal through a network interface 104;
the processor 101 acquires network quality information with the worst network quality of each terminal according to the network quality information sent by each terminal;
the processor 101 adjusts the signal transmission parameter value of the video call of each terminal according to the network quality information with the worst network quality;
and sending the signal transmission parameter value of the video call of each terminal to each terminal through the network interface 104.
Further, the network quality information includes an uplink packet loss rate, a network delay, and a network bandwidth limitation imposed by an operator, and the processor 101 is configured to invoke a video call control application program in the memory 102 to perform the following operations:
the processor 101 compares the network quality information of each terminal according to a preset comparison rule, and determines the network quality information with the worst network quality;
the processor 101 adjusts a picture resolution and a signal transmission frame rate corresponding to a change of the network quality information according to the change of the network quality information having the worst network quality.
Further, the processor 101 is configured to call the video call control application program in the memory 102 to perform the following operations:
if the adjusted image resolution is lower than an image resolution threshold, or the adjusted signal transmission frame rate is lower than a signal transmission frame rate threshold, the processor 101 generates a control instruction for closing the image data transmission function;
the control instruction is sent to each terminal through the network interface 104. Alternatively, the first and second electrodes may be,
if the image data transmission function is turned off, and the adjusted frame resolution is higher than a frame resolution threshold, or the calculated frame rate is higher than a frame rate threshold, the processor 101 generates a control instruction for turning on the image data transmission function;
and sending the control instruction for starting the image data transmission function to each terminal through a network interface.
As shown in fig. 4, the present invention also provides a terminal for video call, where the terminal 200 includes:
an information obtaining module 21, configured to obtain network quality information of itself;
the communication module 22 is configured to send the acquired network quality information to a server; the server adjusts the signal transmission parameter value of the video call of each terminal according to the network quality information sent by each terminal; the server is also used for receiving signal transmission parameter values sent by the server;
and the control module 23 is configured to perform video call control according to the signal transmission parameter.
The terminal having established the video call will periodically detect the network quality information of the signal transmitted and received by the terminal during the video call through the information obtaining module 21. The network quality information may include an uplink packet loss rate, a network delay, a network bandwidth limitation imposed by an operator, and the like, and the influencing factors of the change of the network quality are the switching of the network type and the change of the signal strength. The terminal communicates with the server through the communication module 22 to upload the network quality information acquired by the information acquisition module 21 to the control server 100. The control server 100 compares the network quality information uploaded by each terminal performing the same video call, obtains the network quality information with the worst network quality, and adjusts the video call signal transceiving conditions of each terminal to be consistent based on the worst network quality information. And generates adjustment parameters, and then sends the adjustment parameters to each terminal. After receiving the adjustment parameter, the communication module 22 of the terminal controls the video call according to the adjustment parameter.
According to the embodiment of the invention, the network quality condition of each terminal in the video call process is monitored and uploaded to the server, so that the server adjusts the transmission of video data of each terminal according to the change of the network quality, and the quality of the video call is ensured.
The control server 100 adjusts a picture resolution and a signal transmission frame rate corresponding to a change in the network quality information according to the change in the network quality information having the worst network quality. For the specific adjustment process, reference may be made to the description of the foregoing embodiment of the control server, and details are not repeated here.
The control server 100 is further configured to: the server generates a control instruction for closing the image data transmission function and sends the control instruction for closing the image data transmission function to each terminal. Therefore, the terminal receives a control instruction for closing the image data transmission function issued by the control server 100 through the communication module 22; the control module 23 then turns off the image data transfer function.
The control server 100 is further configured to: when the adjusted image resolution is lower than an image resolution threshold or the adjusted signal transmission frame rate is lower than a signal transmission frame rate threshold, a control instruction for closing the image data transmission function is generated. Or, when the image data transmission function is turned off and the adjusted image resolution is higher than an image resolution threshold, or the adjusted signal transmission frame rate is higher than a signal transmission frame rate threshold, generating a control instruction for turning on the image data transmission function. And then the server sends the control instruction for starting the image data transmission function to each terminal. Therefore, the terminal receives a control instruction for starting the image data transmission function from the control server 100 through the communication module 22, and then the control module 23 starts the image data transmission function.
In the video call process, the control server can adjust the picture resolution and the signal transmission frame rate of each terminal according to the network quality change of each terminal, even control the opening or closing of the image data transmission function, thereby not only ensuring the normal operation of the video call, but also automatically adjusting the quality of the video call along with the change of the current network of each terminal.
Corresponding to the above embodiment of the control server, the present invention further provides a method for controlling a video call, as shown in fig. 5, the method for controlling a video call includes the following steps:
step S101, a server receives network quality information sent by each terminal;
each terminal periodically detects network quality information of each transmission and reception signal during the video call and uploads it to the control server 100. The network quality information comprises the signal strength which can be carried by the current network.
Step S102, the server obtains the network quality information with the worst network quality of each terminal according to the network quality information sent by each terminal;
specifically, the network quality information may include an uplink packet loss rate, a network delay, a network bandwidth limitation of an operator, and the like, and the influencing factor of the change of the network quality is the switching of the network type and the change of the signal strength. And comparing the network quality information of each terminal according to a preset comparison rule, and determining the network quality information with the worst network quality. The preset comparison rule may perform an overall comparison on all the network quality information, or perform a comparison only with one or more network quality information.
Step S103, the server adjusts the signal transmission parameter value of each terminal video call according to the network quality information with the worst network quality;
specifically, the picture resolution and the frame rate of signal transmission corresponding to the current network quality may be adjusted according to the change of the network quality of the terminal with the network quality information with the worst network quality twice, for example, if the packet loss rate increases, the network delay increases, and the bandwidth limit decreases, the frame rate is decreased. And similarly, adjusting the signal transmission of each terminal according to the adjusted picture resolution and the signal transmission frame rate.
And step S104, the server sends the signal transmission parameter values of the video calls of the terminals to the terminals.
The embodiment of the invention ensures the quality of the video call by monitoring the network quality condition of each terminal in the video call process and adjusting the transmission of the video data of each terminal according to the change of the network quality.
Further, as shown in fig. 6, after the step S103, the method further includes:
step S105, if the adjusted picture resolution is lower than a picture resolution threshold, or the adjusted signal transmission frame rate is lower than a signal transmission frame rate threshold, generating a control instruction for closing the image data transmission function;
and step S106, the server sends the control command and the signal transmission frame rate to each terminal.
In this embodiment, a frame resolution threshold and a frame rate threshold are set. When the picture resolution is lower than the picture resolution threshold or the signal transmission frame rate is lower than the signal transmission frame rate threshold, the image data transmission function is closed to ensure that the sound data is continuously transmitted.
Further, as shown in fig. 7, after the step S103, the method further includes:
step S107, if the image data transmission function is closed and the adjusted image resolution is higher than an image resolution threshold, or the adjusted signal transmission frame rate is higher than a signal transmission frame rate threshold, generating a control instruction for opening the image data transmission function;
and step S108, the server sends the control instruction for starting the image data transmission function to each terminal.
In this embodiment, a frame resolution threshold and a frame rate threshold are set. When the original image data function is closed and the adjusted image resolution threshold is higher than the image resolution threshold or the signal transmission frame rate is higher than the signal transmission frame rate threshold, the image data transmission function can be started, so that the integrity of data transmission is ensured.
In the video call process, the control server can adjust the picture resolution and the signal transmission frame rate of each terminal according to the network quality change of each terminal, even control the opening or closing of the image transmission function, thereby not only ensuring the normal operation of the video call, but also automatically adjusting the quality of the video call along with the change of the current network of each terminal.
The following describes a control process of switching from the WIFI mode to the 3G mode in a video call. Terminal 1 and terminal 2 all carry out the video conversation under the WIFI mode, and in the video conversation process, terminal 1 has left the scope that WIFI can cover suddenly, and terminal 1 is switched to the 3G mode (also can be 4G mode) by the WIFI mode, and the quality of this terminal 1 current network also can descend thereupon this moment. The control server 100 monitors that the network quality of the terminal 1 is worse than that of the terminal 2, and therefore adjusts the signal transmission parameter of the terminal 2 according to the change of the network quality of the terminal 1, for example, the control server 2 switches from the WIFI mode to the 3G mode, or adjusts the picture resolution and the signal transmission frame rate of the terminal 2 to match the picture resolution and the signal transmission frame rate of the terminal 1.
When the quality of the current network of the terminal 1 continuously decreases, the control server 100 also continuously adjusts the signal transmission parameters of the terminal to ensure that the video call between the terminal 1 and the terminal 2 is normally performed. When the picture resolution and the signal transmission frame rate of the terminal 2 adjusted by the control server are correspondingly lower than the corresponding threshold values, the transmission function of the image data is controlled to be closed, and only the transmission of the voice data is reserved.
When the terminal 1 is switched from the 3G mode to the WIFI mode, the quality of the current network of the terminal 1 will increase again. The control server 100 monitors that the network quality of the terminal 2 is lower than the network quality of the terminal 1, and adjusts the signal transmission parameters of the terminal 1 according to the change of the network quality of the terminal 2, for example, controls the transmission function of the image data of the terminal 2 to be turned on, and adjusts the image resolution and the signal transmission rate of the terminal 2.
Corresponding to the above terminal embodiment, the present invention further provides a method for controlling a video call, as shown in fig. 8, the method for controlling a video call includes the following steps:
step S201, each terminal which has established the video call acquires own network quality information;
step S202, sending the acquired network quality information to a server; the server adjusts the signal transmission parameter value of the video call of each terminal according to the network quality information sent by each terminal;
step S203, each terminal receives signal transmission parameter values issued by the server;
and step S204, controlling the video call according to the signal transmission parameters.
The terminal which has established the video call periodically detects the network quality information of the signals which are transmitted and received by the terminal in the process of carrying out the video call. The network quality information may include an uplink packet loss rate, a network delay, a network bandwidth limitation imposed by an operator, and the like, and the influencing factors of the change of the network quality are the switching of the network type and the change of the signal strength. The terminal will communicate with the control server 100 to upload the acquired network quality information to the control server 100. The control server 100 compares the network quality information uploaded by each terminal performing the same video call, obtains the network quality information with the worst network quality, and adjusts the video call signal transceiving conditions of each terminal to be consistent based on the worst network quality information. And generates adjustment parameters, and then sends the adjustment parameters to each terminal. And after receiving the adjustment parameter, the terminal controls the video call according to the adjustment parameter.
According to the embodiment of the invention, the network quality condition of each terminal in the video call process is monitored and uploaded to the server, so that the server adjusts the transmission of video data of each terminal according to the change of the network quality, and the quality of the video call is ensured.
The control server 100 adjusts a picture resolution and a signal transmission frame rate corresponding to a change in the network quality information according to the change in the network quality information having the worst network quality. For the specific adjustment process, reference may be made to the description of the foregoing embodiment of the control server, and details are not repeated here.
If the picture resolution adjusted by the server is lower than a picture resolution threshold or the signal transmission frame rate adjusted by the server is lower than a signal transmission frame rate threshold, the server generates a control instruction for closing the image data transmission function and sends the control instruction for closing the image data transmission function to each terminal; the terminals receive the control instruction for closing the image data transmission function and close the image data transmission function according to the control instruction.
If the image data transmission function is closed, and the adjusted image resolution is higher than an image resolution threshold, or the adjusted signal transmission frame rate is higher than a signal transmission frame rate threshold, generating a control instruction for opening the image data transmission function; sending the control instruction for starting the image data transmission function to each terminal; the terminals receive the control instruction for starting the image data transmission function and start the image data transmission function according to the control instruction.
In the video call process, the control server can adjust the picture resolution and the signal transmission frame rate of each terminal according to the network quality change of each terminal, even control the opening or closing of the image data transmission function, thereby not only ensuring the normal operation of the video call, but also automatically adjusting the quality of the video call along with the change of the current network of each terminal.
Correspondingly, an embodiment of the present invention further provides a method for controlling a video call, as shown in fig. 9, taking a video call between two terminals as an example, the method for controlling a video call further includes the following steps:
step S301, establishing a video call between the terminal 1 and the terminal 2;
step S302, in the process of carrying out video call, the terminal 1 and the terminal 2 acquire own network quality information and send the network quality information to a control server;
step S303, the control server acquires the network quality information with the worst network quality of each terminal according to the network quality information uploaded by each terminal;
step S304, the control server adjusts the picture resolution and the signal transmission frame rate corresponding to the change of the worst network quality information according to the change of the worst network quality information;
step S305, the control server sends the adjusted image resolution and the signal transmission frame rate to each terminal;
s306, each terminal receives the picture resolution and the signal transmission frame rate and performs video call control;
step S307, the control server generates a control instruction for closing the image data transmission function, wherein the adjusted image resolution is lower than an image resolution threshold, or the adjusted signal transmission frame rate is lower than a signal transmission frame rate threshold;
step S308, the control server issues a control instruction for closing the image data transmission function to each terminal;
step S309, each terminal receives the control instruction for closing the image data transmission function and closes the image data transmission function;
step S310, if the image data transmission function is closed, and the adjusted image resolution is higher than an image resolution threshold, or the adjusted signal transmission frame rate is higher than a signal transmission frame rate threshold, the control server generates a control instruction for opening the image data transmission function; sending the control instruction for starting the image data transmission function to each terminal;
step S311, the control server issues the control instruction for starting the image data transmission function to each terminal;
step S312, each terminal receives the control instruction for starting the image data transmission function, and starts the image data transmission function.
According to the embodiment of the invention, the network quality condition of each terminal in the video call process is monitored and uploaded to the server, so that the server adjusts the transmission of video data of each terminal according to the change of the network quality, and the quality of the video call is ensured.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes that can be directly or indirectly applied to other related technical fields using the contents of the present specification and the accompanying drawings are included in the scope of the present invention.
Claims (17)
1. A control method of video call is characterized by comprising the following steps:
the method comprises the steps that a server receives network quality information sent by each terminal, wherein video call connection is established between each terminal;
the server acquires the network quality information with the worst network quality of each terminal according to the network quality information sent by each terminal;
the server adjusts the signal transmission parameter value of each terminal video call according to the change of the network quality of the terminal with the network quality information with the worst network quality in the two times, wherein the signal transmission parameter value comprises the picture resolution and the signal transmission frame rate;
and the server sends the signal transmission parameter values of the video calls of the terminals to the terminals.
2. The method of claim 1, wherein the network quality information includes an uplink packet loss rate, a network delay, and a network bandwidth limitation imposed by an operator, and the obtaining, by the server, the network quality information with the worst network quality of each terminal according to the network quality information sent by each terminal comprises:
and the server compares the network quality information of each terminal according to a preset comparison rule and determines the network quality information with the worst network quality.
3. The method for controlling video calls of claim 1, wherein the adjusting the value of the signal transmission parameter for each terminal video call further comprises:
if the adjusted picture resolution is lower than a picture resolution threshold value or the adjusted signal transmission frame rate is lower than a signal transmission frame rate threshold value, generating a control instruction for closing the image data transmission function;
and the server sends the control instruction to each terminal.
4. The method for controlling video calls of claim 1, wherein the adjusting the value of the signal transmission parameter for each terminal video call further comprises:
if the image data transmission function is closed, and the adjusted image resolution is higher than an image resolution threshold, or the adjusted signal transmission frame rate is higher than a signal transmission frame rate threshold, generating a control instruction for opening the image data transmission function;
and the server sends the control instruction for starting the image data transmission function to each terminal.
5. A control method of video call is characterized by comprising the following steps:
each terminal which has established the video call acquires own network quality information;
sending the acquired network quality information to a server; the server adjusts the signal transmission parameter values of video calls of each terminal according to the changes of the network quality of the terminal with the network quality information with the worst network quality in the network quality information sent by each terminal, wherein the signal transmission parameter values comprise the image resolution and the signal transmission frame rate;
each terminal receives a signal transmission parameter value sent by a server;
and controlling the video call according to the signal transmission parameters.
6. The method of claim 5, wherein the network quality information comprises an uplink packet loss rate, a network delay, and a network bandwidth limitation imposed by an operator.
7. The method as claimed in claim 5, wherein if the adjusted frame resolution of the server is lower than a frame resolution threshold, or the adjusted frame rate of the signal transmission is lower than a frame rate threshold, the server generates a control command for turning off the image data transmission function, and sends the control command for turning off the image data transmission function to each terminal;
and when the terminals receive the control instruction for closing the image data transmission function, closing the image data transmission function.
8. The method as claimed in claim 5, wherein if the image data transfer function is turned off and the adjusted frame resolution is higher than a frame resolution threshold or the adjusted frame rate is higher than a frame rate threshold, generating a control command to turn on the image data transfer function; sending the control instruction for starting the image data transmission function to each terminal;
and when the terminals receive the control instruction for starting the image data transmission function, starting the image data transmission function.
9. A control server for a video call, comprising:
the receiving module is used for receiving the network quality information sent by each terminal, wherein each terminal is established with video call connection;
the comparison module is used for acquiring the network quality information with the worst network quality of each terminal according to the network quality information sent by each terminal;
the control module is used for adjusting the signal transmission parameter values of video calls of each terminal according to the change of the network quality of the terminal with the network quality information with the worst network quality in the two times, wherein the signal transmission parameter values comprise the image resolution and the signal transmission frame rate;
and the sending module is used for sending the signal transmission parameter values of the video calls of the terminals to the terminals.
10. The control server of claim 9, wherein the network quality information includes an uplink packet loss rate, a network delay, and a network bandwidth limitation imposed by an operator, and the comparing module is configured to: and comparing the network quality information of each terminal according to a preset comparison rule, and determining the network quality information with the worst network quality.
11. The control server of claim 10, wherein the control module is further configured to: when the adjusted picture resolution is lower than a picture resolution threshold or the calculated signal transmission frame rate is lower than a signal transmission frame rate threshold, generating a control instruction for closing the image data transmission function;
the sending module is further configured to: and sending the control instruction for closing the image data transmission function to each terminal.
12. The control server for video calls of claim 10, wherein the control module is further configured to:
when the image data transmission function is closed and the adjusted image resolution is higher than an image resolution threshold, or the adjusted signal transmission frame rate is higher than a signal transmission frame rate threshold, generating a control instruction for starting the image data transmission function;
the sending module is further configured to: and sending the control instruction for starting the image data transmission function to each terminal.
13. A terminal for video call, comprising:
the information acquisition module is used for acquiring the network quality information of the terminal, wherein the terminal and other terminals establish video call connection;
the communication module is used for sending the acquired network quality information to a server; the server adjusts the signal transmission parameter value of the video call of each terminal according to the change of the network quality of the terminal with the network quality information with the worst network quality in the network quality information sent by each terminal; the device is also used for receiving signal transmission parameter values issued by the server, wherein the signal transmission parameter values comprise picture resolution and signal transmission frame rate;
and the control module is used for controlling the video call according to the signal transmission parameters.
14. The terminal of claim 13, wherein the network quality information comprises an uplink packet loss rate, a network delay, and an operator's limitation on a network bandwidth.
15. The terminal of claim 14, wherein if the adjusted frame resolution of the server is lower than a frame resolution threshold or the adjusted frame rate of the signal transmission is lower than a frame rate threshold, the server generates a control command for turning off the image data transmission function and sends the control command for turning off the image data transmission function to each terminal;
the communication module is further configured to: receiving a control instruction for closing the image data transmission function issued by the server;
the control module is further configured to: the image data transfer function is turned off.
16. The terminal for video call according to claim 14, wherein if the image data transfer function is turned off,
the adjusted image resolution is higher than an image resolution threshold, or the adjusted signal transmission frame rate is higher than a signal transmission frame rate threshold, and the server generates a control instruction for starting an image data transmission function; sending the control instruction for starting the image data transmission function to each terminal;
the communication module is further configured to: receiving a control instruction for starting an image data transmission function;
the control module is further configured to: the image data transfer function is turned on.
17. A video call system comprising at least two terminals and a server for controlling a video call between the terminals, wherein the server is the control server according to any one of claims 9 to 12; the terminal is a terminal for video call according to any one of claims 13 to 16.
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| CN106060447B (en) * | 2016-05-17 | 2022-09-30 | 国网山西省电力公司 | Monitoring method and monitoring system based on mobile communication terminal and video telephone |
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| CN107040747A (en) * | 2017-04-27 | 2017-08-11 | 宇龙计算机通信科技(深圳)有限公司 | Video calling method of adjustment and system |
| CN107743275A (en) * | 2017-10-24 | 2018-02-27 | 国网冀北电力有限公司 | A kind of video adjusting method and device |
| KR102345503B1 (en) | 2020-03-03 | 2022-01-03 | 주식회사 하이퍼커넥트 | Mediating Method and Computer Readable Recording Medium |
| CN111770297A (en) * | 2020-06-03 | 2020-10-13 | 广东以诺通讯有限公司 | Method for reducing video call flow consumption |
| CN114125517B (en) * | 2020-08-27 | 2024-04-05 | 腾讯科技（北京）有限公司 | Video playing method and device, electronic equipment and readable storage medium |
| CN112333414A (en) * | 2020-10-30 | 2021-02-05 | 维沃移动通信有限公司 | Video call method and device, electronic equipment and readable storage medium |
| CN112804469B (en) * | 2021-01-04 | 2023-03-24 | 北京小米松果电子有限公司 | Video call processing method, device, equipment and storage medium |
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