CN112543319A - Video call quality testing method, device and computer readable storage medium - Google Patents
Video call quality testing method, device and computer readable storage medium Download PDFInfo
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- CN112543319A CN112543319A CN201910895106.5A CN201910895106A CN112543319A CN 112543319 A CN112543319 A CN 112543319A CN 201910895106 A CN201910895106 A CN 201910895106A CN 112543319 A CN112543319 A CN 112543319A
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000012372 quality testing Methods 0.000 title claims abstract description 27
- 238000012360 testing method Methods 0.000 claims description 49
- 238000004590 computer program Methods 0.000 claims description 24
- 230000015654 memory Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000007175 bidirectional communication Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
- H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
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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
Abstract
The embodiment of the invention provides a video call quality testing method, a video call quality testing device and a computer readable storage medium, wherein the method is applied to a single terminal and comprises the following steps: sending a reference video based on an uplink air interface of the terminal; receiving a damaged video based on a downlink air interface of the terminal; and comparing and scoring the reference video and the damaged video to obtain the video call quality.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a method and an apparatus for testing video call quality, and a computer-readable storage medium.
Background
At present, video call quality test schemes are more, such as: the method comprises the steps of carrying out audio and video quality testing on the Ciboren 8100, shooting videos received by a terminal (UE) through an external high-definition camera, carrying out picture cutting and processing according to the boundary of a terminal screen to obtain damaged videos, carrying out comparison and grading on the damaged videos and prestored reference videos, and mainly in a laboratory testing stage, wherein the testing accuracy is low.
In addition, in the existing test system, two terminals are used for testing, the two terminals are used for bidirectional communication, communication in one direction is only used during testing, and the test configuration and the test process are complicated.
Disclosure of Invention
In view of the above, embodiments of the present invention are intended to provide a method, an apparatus, and a computer-readable storage medium for testing video call quality.
In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:
the embodiment of the invention provides a video call quality testing method, which is applied to a single terminal and comprises the following steps:
sending a reference video based on an uplink air interface of the terminal;
receiving a damaged video based on a downlink air interface of the terminal;
and comparing and scoring the reference video and the damaged video to obtain the video call quality.
Wherein the sending a reference video based on the uplink air interface of the terminal and receiving a damaged video based on the downlink air interface of the terminal include:
and sending the reference video to a call center through an uplink air interface of the terminal, and receiving the damaged video forwarded by the call center through a downlink air interface of the terminal.
The call center is used for directly forwarding the uplink media of the call to the corresponding downlink media.
Optionally, the method further includes:
setting a corresponding frame number mark for each frame of a reference video to be sent; accordingly, the method can be used for solving the problems that,
the damaged video also carries the frame number mark;
and determining the time delay of the call video based on the frame number of the reference video transmitted at the current moment and the frame number of the damaged video received at the same moment.
Wherein, the determining the time delay of the call video based on the frame number of the reference video sent at the current moment and the frame number of the damaged video received at the same moment comprises:
determining a difference value between a frame number of a reference video sent at the current moment and a frame number of a damaged video received at the same moment;
and determining the time delay of the call video based on the difference value and the frame rate of the reference video.
Optionally, the method further includes:
and displaying the reference video transmitted at the same moment and the received damaged video, and displaying the corresponding frame numbers of the reference video and the received damaged video.
The embodiment of the invention also provides a video call quality testing method, which is applied to a call center and comprises the following steps:
receiving a reference video sent by a terminal through an uplink air interface;
directly forwarding the reference video to a corresponding downlink video;
sending the downlink video to the terminal through a downlink air interface of the terminal, wherein the downlink video is used for testing the video call quality of the terminal; and the downlink video received by the terminal is a damaged video.
The embodiment of the invention also provides a video call quality testing device, which is applied to a single terminal and comprises the following steps:
a first sending module, configured to send a reference video based on an uplink air interface of the terminal;
a first receiving module, configured to receive a damaged video based on a downlink air interface of the terminal;
and the test module is used for comparing and grading the reference video and the damaged video to obtain the video call quality.
The embodiment of the invention also provides a video call quality testing device, which is applied to a call center and comprises the following components:
the second receiving module is used for receiving a reference video sent by the terminal through an uplink air interface;
the forwarding module is used for directly forwarding the reference video to the corresponding downlink video;
the second sending module is used for sending the downlink video to the terminal through a downlink air interface of the terminal and testing the video call quality of the terminal; and the downlink video received by the terminal is a damaged video.
The embodiment of the invention also provides a video call quality testing device, which comprises: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to perform the steps of the above method when running the computer program.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the above-mentioned method.
The video call quality testing method, the video call quality testing device and the computer-readable storage medium provided by the embodiment of the invention are based on that a single terminal sends a reference video through an uplink air interface and receives a damaged video through a downlink air interface; and comparing and scoring the reference video and the damaged video to obtain the video call quality. Therefore, in the embodiment of the invention, the tester can perform the quality test of the mobile network video call service equivalent to end-to-end only by one terminal, the test operation is simpler, the test equipment is lighter, and the scale popularization and application are more convenient.
In addition, the embodiment of the invention can also obtain the video time delay based on the frame number, and the content of the test result is more comprehensive.
Drawings
Fig. 1 is a first schematic flow chart of a video call quality testing method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a video call quality testing method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a video call quality testing apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a video call quality testing apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a video call quality testing apparatus according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a video call quality testing system according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a terminal test process screen display according to an embodiment of the present invention.
Detailed Description
The invention is described below with reference to the figures and examples.
An embodiment of the present invention provides a method for testing video call quality, as shown in fig. 1, where the method is applied to a single terminal, and includes:
step 101: sending a reference video based on an uplink air interface of the terminal;
step 102: receiving a damaged video based on a downlink air interface of the terminal;
step 103: and comparing and scoring the reference video and the damaged video to obtain the video call quality.
In the embodiment of the invention, the tester can carry out the quality test of the mobile network video call service equivalent to end-to-end only by one terminal, the test operation is simpler, the test equipment is lighter, and the scale popularization and application are more convenient.
In this embodiment of the present invention, the sending a reference video over an uplink air interface based on the terminal and receiving a damaged video over a downlink air interface based on the terminal includes:
and sending the reference video to a call center through an uplink air interface of the terminal, and receiving the damaged video forwarded by the call center through a downlink air interface of the terminal.
In the embodiment of the invention, the call center is used for directly forwarding the uplink media of the call to the corresponding downlink media.
In one embodiment, the method further comprises:
setting a corresponding frame number mark for each frame of a reference video to be sent; accordingly, the method can be used for solving the problems that,
the damaged video also carries the frame number mark;
and determining the time delay of the call video based on the frame number of the reference video transmitted at the current moment and the frame number of the damaged video received at the same moment.
For the video call quality test, common network damages include packet loss, time delay, jitter and the like, the jitter is the change of the network time delay, and the jitter has a great influence on the call quality due to the real-time property and the time duration of the video call. Therefore, the determination of the time delay of the call video can better understand the video call quality, and the larger the time delay is, the lower the video call quality is. Moreover, the video delay obtained from the frame number difference can reflect the real service delay experienced by the user most.
In the embodiment of the present invention, the determining the time delay of the call video based on the frame number of the reference video transmitted at the current moment and the frame number of the damaged video received at the same moment includes:
determining a difference value between a frame number of a reference video sent at the current moment and a frame number of a damaged video received at the same moment;
and determining the time delay of the call video based on the difference value and the frame rate of the reference video.
In one embodiment, the method further comprises:
and displaying the reference video transmitted at the same moment and the received damaged video, and displaying the corresponding frame numbers of the reference video and the received damaged video.
In the practical application process, the reference video and the damaged video are displayed on the terminal display screen, so that a tester can more intuitively see the video call quality and determine the approximate damaged condition of the video; the display of the corresponding frame number can enable a tester to visually determine the current time delay condition, and the subjective test is facilitated.
An embodiment of the present invention further provides a method for testing video call quality, as shown in fig. 2, where the method is applied to a call center, and includes:
step 201: receiving a reference video sent by a terminal through an uplink air interface;
step 202: directly forwarding the reference video to a corresponding downlink video;
step 203: sending the downlink video to the terminal through a downlink air interface of the terminal, wherein the downlink video is used for testing the video call quality of the terminal; and the downlink video received by the terminal is a damaged video.
In order to implement the foregoing method embodiment, an embodiment of the present invention further provides a video call quality testing apparatus, as shown in fig. 3, where the apparatus is applied to a single terminal, and includes:
a first sending module 301, configured to send a reference video based on an uplink air interface of the terminal;
a first receiving module 302, configured to receive a damaged video based on a downlink air interface of the terminal;
the test module 303 is configured to compare and score the reference video and the damaged video to obtain video call quality.
In this embodiment of the present invention, the sending of the reference video by the first sending module 301 based on the uplink air interface of the terminal and the receiving of the damaged video by the first receiving module 302 based on the downlink air interface of the terminal by the first sending module 301 include:
the first sending module 301 sends the reference video to a call center via an uplink air interface of the terminal;
the first receiving module 302 receives the damaged video forwarded by the call center via the downlink air interface of the terminal.
In the embodiment of the invention, the call center is used for directly forwarding the uplink media of the call to the corresponding downlink media.
In one embodiment, before the first sending module 301 sends the reference video, the first sending module is further configured to set a corresponding frame number flag for each frame of the reference video to be sent; accordingly, the method can be used for solving the problems that,
the damaged video also carries the frame number mark;
the test module 303 is further configured to determine a time delay of the call video based on the frame number of the reference video sent at the current moment and the frame number of the damaged video received at the same moment.
In this embodiment of the present invention, the determining, by the testing module 303, the time delay of the call video based on the frame number of the reference video sent at the current time and the frame number of the damaged video received at the same time includes:
determining a difference value between a frame number of a reference video sent at the current moment and a frame number of a damaged video received at the same moment;
and determining the time delay of the call video based on the difference value and the frame rate of the reference video.
In one embodiment, as shown in fig. 4, the apparatus further comprises: and the display module 304 is configured to display the reference video and the received impaired video transmitted at the same time, and display corresponding frame numbers of the reference video and the received impaired video.
An embodiment of the present invention further provides a video call quality testing apparatus, as shown in fig. 5, the apparatus is applied to a call center, and includes:
a second receiving module 501, configured to receive a reference video sent by a terminal over an uplink air interface;
a forwarding module 502, configured to directly forward the reference video to a corresponding downlink video;
a second sending module 503, configured to send the downlink video to the terminal through a downlink air interface of the terminal, where the downlink video is used for the terminal to test video call quality; and the downlink video received by the terminal is a damaged video.
The embodiment of the invention also provides a video call quality testing device, which comprises: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to execute, when running the computer program:
sending a reference video based on an uplink air interface of the terminal;
receiving a damaged video based on a downlink air interface of the terminal;
and comparing and scoring the reference video and the damaged video to obtain the video call quality.
When the uplink air interface based on the terminal sends the reference video and the downlink air interface based on the terminal receives the damaged video, the processor is further configured to execute, when the computer program runs, the following steps:
and sending the reference video to a call center through an uplink air interface of the terminal, and receiving the damaged video forwarded by the call center through a downlink air interface of the terminal.
The call center is used for directly forwarding the uplink media of the call to the corresponding downlink media.
The processor is further configured to, when executing the computer program, perform:
setting a corresponding frame number mark for each frame of a reference video to be sent; accordingly, the method can be used for solving the problems that,
the damaged video also carries the frame number mark;
and determining the time delay of the call video based on the frame number of the reference video transmitted at the current moment and the frame number of the damaged video received at the same moment.
The processor is further configured to determine a time delay of the call video based on the frame number of the reference video sent at the current time and the frame number of the damaged video received at the same time, and execute, when running the computer program:
determining a difference value between a frame number of a reference video sent at the current moment and a frame number of a damaged video received at the same moment;
and determining the time delay of the call video based on the difference value and the frame rate of the reference video.
The processor is further configured to, when executing the computer program, perform:
and displaying the reference video transmitted at the same moment and the received damaged video, and displaying the corresponding frame numbers of the reference video and the received damaged video.
The embodiment of the invention also provides a video call quality testing device, which comprises: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to execute, when running the computer program:
receiving a reference video sent by a terminal through an uplink air interface;
directly forwarding the reference video to a corresponding downlink video;
sending the downlink video to the terminal through a downlink air interface of the terminal, wherein the downlink video is used for testing the video call quality of the terminal; and the downlink video received by the terminal is a damaged video.
It should be noted that: in the device provided in the foregoing embodiment, when performing a video call quality test, only the division of the program modules is illustrated, and in practical applications, the processing distribution may be completed by different program modules according to needs, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the apparatus provided in the above embodiments and the corresponding method embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
In an exemplary embodiment, the embodiment of the present invention also provides a computer-readable storage medium, which may be a Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disc, or CD-ROM; or may be a variety of devices including one or any combination of the above memories, such as a mobile phone, computer, tablet device, personal digital assistant, etc.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, performs:
sending a reference video based on an uplink air interface of the terminal;
receiving a damaged video based on a downlink air interface of the terminal;
and comparing and scoring the reference video and the damaged video to obtain the video call quality.
When the uplink air interface based on the terminal sends the reference video and the downlink air interface based on the terminal receives the damaged video, and when the computer program is operated by the processor, the computer program further executes:
and sending the reference video to a call center through an uplink air interface of the terminal, and receiving the damaged video forwarded by the call center through a downlink air interface of the terminal.
The call center is used for directly forwarding the uplink media of the call to the corresponding downlink media.
The computer program, when executed by the processor, further performs:
setting a corresponding frame number mark for each frame of a reference video to be sent; accordingly, the method can be used for solving the problems that,
the damaged video also carries the frame number mark;
and determining the time delay of the call video based on the frame number of the reference video transmitted at the current moment and the frame number of the damaged video received at the same moment.
The time delay of the call video is determined based on the frame number of the reference video sent at the current moment and the frame number of the damaged video received at the same moment, and when the computer program is executed by the processor, the computer program further executes:
determining a difference value between a frame number of a reference video sent at the current moment and a frame number of a damaged video received at the same moment;
and determining the time delay of the call video based on the difference value and the frame rate of the reference video.
The computer program, when executed by the processor, further performs:
and displaying the reference video transmitted at the same moment and the received damaged video, and displaying the corresponding frame numbers of the reference video and the received damaged video.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, performs:
receiving a reference video sent by a terminal through an uplink air interface;
directly forwarding the reference video to a corresponding downlink video;
sending the downlink video to the terminal through a downlink air interface of the terminal, wherein the downlink video is used for testing the video call quality of the terminal; and the downlink video received by the terminal is a damaged video.
The invention is described below in conjunction with the scenario embodiments.
The embodiment provides a method for realizing end-to-end video quality test of a mobile network, based on the method, end-to-end test can be carried out by utilizing a terminal; besides video picture quality, the end-to-end video time delay index can be tested.
Fig. 6 shows a schematic diagram of a system architecture of the present embodiment, which includes: a test terminal and a call center;
the test terminal sends an uplink reference video to be transmitted to a (test) call center through a network;
the call center directly forwards the uplink video to the downlink and transmits the uplink video to the test terminal through the network;
and the test terminal receives the damaged video, and compares and scores the reference video and the damaged video to obtain the video call quality.
It should be noted that the call center in the above figure is not a traditional call center, but implements a function of directly forwarding the uplink media of a call to the corresponding downlink media.
In a mobile communication network, the air interface has the greatest impact on the service quality, and end-to-end video calls need to be affected by the transmission of the air interfaces at the uplink and downlink ends.
Fig. 7 is a schematic diagram of a terminal test procedure screen display. In this embodiment, the terminal simultaneously displays the reference video sent at the current time and the damaged video received at that time in the display screen. The frame numbers corresponding to the reference video and the damaged video are also displayed on the screen.
Here, each frame of the reference video to be sent is marked with a frame number mark, and the frame number mark can adopt a number or adopt a coded graph; the frame number indicia is also displayed on the received marred video.
After the test mobile phone acquires the screen video, as shown in fig. 7, the originating video frame number mark and the terminating video frame number mark are simultaneously displayed on each frame of video, and the specific frame number can be acquired by performing image recognition according to the predetermined image recognition rule, where it is assumed that the originating video frame number is n and the terminating video frame number is n-x, and the difference x between the two frame numbers is recorded as the video call delay frame number. And if the frame rate of the sending-end video is a preset value f, the call video time delay is x/f seconds.
The method for originating reference video insertion is as follows:
for a common commercial handset: when the video calls, the high-definition video which is repeatedly played is shot through the camera and is used as the reference video input of the sending end. The positions of the test mobile phone and the shot video screen need to be relatively fixed so as to keep the video content stable. Here, a frame number flag needs to be added to this repeated playback high definition video.
For a dedicated test handset: the reference video can be directly used as the video of the video call to input the video content by modifying the camera drive of the mobile phone operating system.
Therefore, in the embodiment of the invention, the tester can perform the quality test of the mobile network video call service equivalent to end-to-end only by one terminal, and can obtain the video delay, the test operation is simpler, the test equipment is lighter, and the scale popularization and application are more convenient.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (11)
1. A video call quality testing method is applied to a single terminal and comprises the following steps:
sending a reference video based on an uplink air interface of the terminal;
receiving a damaged video based on a downlink air interface of the terminal;
and comparing and scoring the reference video and the damaged video to obtain the video call quality.
2. The method according to claim 1, wherein the sending a reference video over an uplink air interface of the terminal and receiving a corrupted video over a downlink air interface of the terminal comprises:
and sending the reference video to a call center through an uplink air interface of the terminal, and receiving the damaged video forwarded by the call center through a downlink air interface of the terminal.
3. The method of claim 2, wherein the call center is configured to forward uplink media of the call directly to corresponding downlink media.
4. The method of claim 1, further comprising:
setting a corresponding frame number mark for each frame of a reference video to be sent; accordingly, the method can be used for solving the problems that,
the damaged video also carries the frame number mark;
and determining the time delay of the call video based on the frame number of the reference video transmitted at the current moment and the frame number of the damaged video received at the same moment.
5. The method of claim 4, wherein determining the time delay of the call video based on the frame number of the reference video transmitted at the current moment and the frame number of the corrupted video received at the same moment comprises:
determining a difference value between a frame number of a reference video sent at the current moment and a frame number of a damaged video received at the same moment;
and determining the time delay of the call video based on the difference value and the frame rate of the reference video.
6. The method of claim 4, further comprising:
and displaying the reference video transmitted at the same moment and the received damaged video, and displaying the corresponding frame numbers of the reference video and the received damaged video.
7. A video call quality testing method is characterized in that the method is applied to a call center and comprises the following steps:
receiving a reference video sent by a terminal through an uplink air interface;
directly forwarding the reference video to a corresponding downlink video;
sending the downlink video to the terminal through a downlink air interface of the terminal, wherein the downlink video is used for testing the video call quality of the terminal; and the downlink video received by the terminal is a damaged video.
8. A video call quality testing device, applied to a single terminal, includes:
a first sending module, configured to send a reference video based on an uplink air interface of the terminal;
a first receiving module, configured to receive a damaged video based on a downlink air interface of the terminal;
and the test module is used for comparing and grading the reference video and the damaged video to obtain the video call quality.
9. A video call quality testing device is characterized in that the device is applied to a call center and comprises:
the second receiving module is used for receiving a reference video sent by the terminal through an uplink air interface;
the forwarding module is used for directly forwarding the reference video to the corresponding downlink video;
the second sending module is used for sending the downlink video to the terminal through a downlink air interface of the terminal and testing the video call quality of the terminal; and the downlink video received by the terminal is a damaged video.
10. A video call quality testing apparatus, comprising: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is adapted to perform the steps of the method of any one of claims 1-6 or to perform the steps of the method of claim 7 when running the computer program.
11. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6 or carries out the steps of the method of claim 7.
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| CN104871498A (en) * | 2012-10-31 | 2015-08-26 | 株式会社理光 | Transmission system, relay apparatus, transmission terminal, and transmission terminal control program |
| JP2016213784A (en) * | 2015-05-13 | 2016-12-15 | Kddi株式会社 | Real-time video communication quality evaluation method and system |
| CN108574840A (en) * | 2017-03-10 | 2018-09-25 | 华为技术有限公司 | A kind of method and device of assessment quality of experience of video |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH04373338A (en) * | 1991-06-24 | 1992-12-25 | Graphics Commun Technol:Kk | Device for synchronizing channels |
| CN104871498A (en) * | 2012-10-31 | 2015-08-26 | 株式会社理光 | Transmission system, relay apparatus, transmission terminal, and transmission terminal control program |
| JP2016213784A (en) * | 2015-05-13 | 2016-12-15 | Kddi株式会社 | Real-time video communication quality evaluation method and system |
| CN108574840A (en) * | 2017-03-10 | 2018-09-25 | 华为技术有限公司 | A kind of method and device of assessment quality of experience of video |
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