CN110572411A - Method and device for testing video transmission quality - Google Patents
Method and device for testing video transmission quality Download PDFInfo
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- CN110572411A CN110572411A CN201910884551.1A CN201910884551A CN110572411A CN 110572411 A CN110572411 A CN 110572411A CN 201910884551 A CN201910884551 A CN 201910884551A CN 110572411 A CN110572411 A CN 110572411A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/154—Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion
Abstract
The embodiment of the application provides a method and a device for testing video transmission quality, wherein the method comprises the following steps: the method comprises the steps that monitoring equipment obtains a window picture of each of N equipment, wherein the window picture of each of the N equipment is from the same video source, and N is a positive integer greater than or equal to 2; the monitoring equipment generates the same picture according to the window picture of each equipment, wherein the same picture is used for simultaneously displaying the window picture of each equipment in the N equipment; the monitoring device displays the same picture so that a user can evaluate the video transmission quality from the same video source to each of the N devices according to the same picture. According to the embodiment of the application, the user does not need to watch a plurality of video clips at intervals for a plurality of times, so that the problem that the user forgets to play the details of the video can be avoided.
Description
Technical Field
the present application relates to the field of streaming media transmission technologies, and in particular, to a method and an apparatus for testing video transmission quality.
Background
With the rapid development of network technology, users have a great deal of real-time audio and video communication demands, and in the audio and video communication, users are very sensitive to the quality and delay of videos. Therefore, testing of video transmission quality is very necessary.
As shown in fig. 1, fig. 1 is a schematic diagram illustrating a method for testing video transmission quality in the prior art. The method as shown in fig. 1 comprises the following steps: the device 110 obtains video source data corresponding to the video source 120, and the device 110 encodes the video source data to obtain video data. The device 110 sends video data to the device 130, and the device 130 decodes the video data and plays the decoded video data in turn for a plurality of times, so that the user 140 can evaluate the video transmission quality according to the subjective feeling of the user 140.
in the process of implementing the invention, the inventor finds that the following problems exist in the prior art: for the conventional method for testing video transmission quality as shown in fig. 1, since the same device is used to play video in turn for multiple times, the intermittent watching mode easily causes the problem that the user forgets the details of playing video.
disclosure of Invention
an object of the embodiments of the present application is to provide a method and an apparatus for testing video transmission quality, so as to improve the problem in the prior art that a user forgets to play details of a video due to an intermittent viewing manner.
In a first aspect, an embodiment of the present application provides a method for testing video transmission quality, where the method includes: the method comprises the steps that monitoring equipment obtains a window picture of each of N equipment, wherein the window picture of each of the N equipment is from the same video source, and N is a positive integer greater than or equal to 2; the monitoring equipment generates the same picture according to the window picture of each equipment, wherein the same picture is used for simultaneously displaying the window picture of each equipment in the N equipment; the monitoring device displays the same picture so that a user can evaluate the video transmission quality from the same video source to each of the N devices according to the same picture.
Therefore, in the embodiment of the application, the monitoring device generates the same picture from the acquired window picture of each of the N devices, and the monitoring device displays the window picture of each of the N devices through the same picture, so that a user can evaluate the video transmission quality from the same video source to each of the N devices according to the same picture, where N is a positive integer greater than or equal to 2. Therefore, the window picture of each of the N devices is displayed simultaneously through the same picture, so that a user does not need to watch a plurality of video clips at intervals for a plurality of times, and the problem that the user forgets to play the details of the video can be avoided. And each of the N devices is from the same video source, thereby also avoiding problems caused by different video sources.
In one possible embodiment, the N devices include a first device and a second device, and the same picture includes a first sub-picture and a second sub-picture, the first sub-picture is used for displaying a picture corresponding to the first sub-picture in a window picture of the first device, and the second sub-picture is used for displaying a picture corresponding to the second sub-picture in a window picture of the second device.
Therefore, in the embodiment of the application, the partial picture corresponding to the first sub-picture in the window picture of the first device is displayed through the first sub-picture, and the partial picture corresponding to the second sub-picture in the window picture of the second device is displayed through the second sub-picture, so that the same picture formed by the partial pictures of the two devices is displayed on the same interface, and the sensitivity of the user for evaluating the video transmission quality can be further improved.
In one possible embodiment, the monitoring device generates the same picture according to the window picture of each device, including: the method comprises the steps that monitoring equipment respectively determines first attribute information of a first sub-picture and second attribute information of a second sub-picture, wherein the first attribute information comprises the position and the size of a display area corresponding to the first sub-picture, and the second attribute information comprises the position and the size of the display area corresponding to the second sub-picture; and the monitoring equipment generates the same picture according to the first attribute information, the second attribute information, the window picture of the first equipment and the window picture of the second equipment.
Therefore, the embodiment of the application generates the same screen accurately and quickly through the first attribute information and the second attribute information.
In one possible embodiment, the generating, by the monitoring device, the same screen according to the first attribute information, the second attribute information, the window screen of the first device, and the window screen of the second device includes: the monitoring equipment renders a picture corresponding to the first sub-picture in the window picture of the first equipment into a display area corresponding to the first sub-picture according to the first attribute information; the monitoring equipment renders a picture corresponding to the second sub-picture in the window picture of the second equipment to a display area corresponding to the second sub-picture according to the second attribute information; and the monitoring equipment generates the same picture according to the first sub-picture and the second sub-picture.
therefore, according to the embodiment of the application, by rendering a part of the window picture of the first device corresponding to the first sub-picture into the display area corresponding to the first sub-picture, and by rendering the picture of the window picture of the second device corresponding to the second sub-picture into the display area corresponding to the second sub-picture, the user can realize the evaluation of the video transmission quality by watching the video on one picture.
In a second aspect, an embodiment of the present application provides a method for testing video transmission quality, where the method includes: the third equipment acquires a window picture displayed by a display screen of the third equipment; the third device sends the window picture to the monitoring device so that the monitoring device can simultaneously display the window pictures of the N devices through the same picture, the N devices comprise the third device, the window picture of each device in the N devices comes from the same video source, and the same picture is used for simultaneously displaying the window picture of each device in the N devices.
It should be noted that the third device may be any one of N devices.
In a third aspect, an embodiment of the present application provides an apparatus for testing video transmission quality, which is applied to a monitoring device, and the apparatus includes: the first acquisition module is used for acquiring a window picture of each of the N devices, wherein the window picture of each of the N devices is from the same video source, and N is a positive integer greater than or equal to 2; the generating module is used for generating the same picture according to the window picture of each device, wherein the same picture is used for simultaneously displaying the window picture of each device in the N devices; and the display module is used for displaying the same picture so that a user can evaluate the video transmission quality from the same video source to each of the N devices according to the same picture.
In one possible embodiment, the N devices include a first device and a second device, and the same picture includes a first sub-picture and a second sub-picture, the first sub-picture is used for displaying a picture corresponding to the first sub-picture in a window picture of the first device, and the second sub-picture is used for displaying a picture corresponding to the second sub-picture in a window picture of the second device.
In one possible embodiment, the generating module includes: the device comprises a determining module, a judging module and a display module, wherein the determining module is used for respectively determining first attribute information of a first sub-picture and second attribute information of a second sub-picture, the first attribute information comprises the position and the size of a display area corresponding to the first sub-picture, and the second attribute information comprises the position and the size of the display area corresponding to the second sub-picture; and the generating submodule is used for generating the same picture according to the first attribute information, the second attribute information, the window picture of the first equipment and the window picture of the second equipment.
In one possible embodiment, the rendering module is configured to render, according to the first attribute information, a screen corresponding to a first sub-screen in a window screen of the first device into a display area corresponding to the first sub-screen; the rendering module is further used for rendering a picture corresponding to the second sub-picture in the window picture of the second device into a display area corresponding to the second sub-picture according to the second attribute information; and the generation sub-module is also used for generating the same picture according to the first sub-picture and the second sub-picture.
In a fourth aspect, an embodiment of the present application provides an apparatus for testing video transmission quality, which is applied to a third device, and the apparatus includes: the second acquisition module is used for acquiring a window picture displayed by a display screen of the third equipment; the sending module is used for sending the window pictures to the monitoring equipment so that the monitoring equipment can simultaneously display the window pictures of the N equipment through the same picture, the N equipment comprises third equipment, the window picture of each equipment in the N equipment comes from the same video source, and the same picture is used for simultaneously displaying the window picture of each equipment in the N equipment.
in a fifth aspect, the present application provides an electronic device, comprising: a processor, a memory and a bus, the memory storing machine-readable instructions executable by the processor, the processor and the memory communicating via the bus when the electronic device is running, the machine-readable instructions when executed by the processor performing the method of the first aspect or any of the alternative implementations of the first aspect.
In a sixth aspect, the present application provides an electronic device, comprising: a processor, a memory and a bus, the memory storing machine-readable instructions executable by the processor, the processor and the memory communicating via the bus when the electronic device is running, the machine-readable instructions when executed by the processor performing the method of the second aspect or any of the alternative implementations of the second aspect.
In a seventh aspect, the present application provides a storage medium having a computer program stored thereon, where the computer program is executed by a processor to perform the method according to the first aspect or any one of the optional implementation manners of the first aspect.
In an eighth aspect, the present application provides a storage medium having stored thereon a computer program which, when executed by a processor, performs the method of the second aspect or any of the alternative implementations of the second aspect.
In a ninth aspect, the present application provides a computer program product which, when run on a computer, causes the computer to perform the method of the first aspect or any possible implementation manner of the first aspect.
In a tenth aspect, the present application provides a computer program product which, when run on a computer, causes the computer to perform the method of the second aspect or any possible implementation of the second aspect.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic diagram illustrating a method for testing video transmission quality in the prior art;
Fig. 2 is a schematic diagram illustrating another video transmission quality testing method in the prior art;
FIG. 3 illustrates a schematic diagram of an application scenario to which embodiments of the present application are applicable;
Fig. 4 is a flowchart illustrating a method for testing video transmission quality according to an embodiment of the present application;
Fig. 5 is a block diagram illustrating a structure of an apparatus for testing video transmission quality according to an embodiment of the present disclosure;
fig. 6 is a block diagram illustrating a structure of an apparatus for testing video transmission quality according to an embodiment of the present disclosure;
Fig. 7 is a block diagram of an electronic device according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating another video transmission quality testing method in the prior art. The method as shown in fig. 2 comprises the following steps: the device 210 obtains video source data corresponding to the video source 220, and the device 210 encodes the video source data corresponding to the video source 220 to obtain first video data. The device 210 transmits the first video data to the device 230, and the device 230 decodes the first video data and plays the decoded first video data.
and the device 240 acquires video source data corresponding to the video source 250, and the device 240 encodes the video source data corresponding to the video source 250 to obtain second video data, wherein the video source 250 and the video source 220 are different video sources. Device 240 sends the second video data to device 260. The device 260 decodes the second video data and plays the decoded second video data. So that the user 270 can evaluate the video transmission quality through his own experience while both the device 230 and the device 260 are playing the video.
However, the conventional method for testing video transmission quality as shown in fig. 2 reduces the switching time of users watching different video sources, introduces display differences among different devices, and makes the user indistinguishable for subtle differences and delays in the picture. Besides, the conventional method for testing video transmission quality as shown in fig. 1 has the problems of easily causing static and dynamic details of a user forgetting to play a video, and also has the problems of reducing user sensitivity and having no intuitive judgment for video delay of streaming media.
Based on the above, the present application skillfully provides a method and an apparatus for testing video transmission quality, in which a monitoring device generates an identical picture from a window picture of each of N devices, and the monitoring device displays the window picture of each of the N devices through the identical picture, so that a user can evaluate the video transmission quality from the identical video source to each of the N devices according to the identical picture, where N is a positive integer greater than or equal to 2. Therefore, according to the embodiment of the application, the window picture of each of the N devices is displayed simultaneously through the same picture, so that the problem that a user forgets to play static and dynamic details of a video can be avoided. And each of the N devices in the embodiment of the present application is from the same video source, so that problems caused by different video sources can also be avoided.
To facilitate understanding of the embodiments of the present application, some terms in the embodiments of the present application are first explained herein as follows:
The term "frame rate" is the frequency at which bitmap images called frames appear continuously on the display screen.
The term "screen refresh rate" refers to the rate at which an image is updated on the screen, with the lower the refresh rate, the more flickering, pausing, and shaking the image, and the faster the eye is tired. Wherein the maximum value of the screen refresh rate is limited by the performance of the hardware.
The term "screen sampling frequency" refers to the number of images acquired per second.
As shown in fig. 3, fig. 3 illustrates a schematic diagram of an application scenario 300 to which an embodiment of the present application is applicable. Specifically, the application scenario 300 includes at least a video source 310, a device 320, a device 330, a device 340, a device 350, and a monitoring device 360.
The video source 310 may be a video file, so that the device 320 and the device 330 may obtain video data corresponding to the video source by reading or downloading from a website. The video source 310 may also be a device carrying a video file, so that the video source data corresponding to the video source 310 is respectively sent to the device 320 and the device 330 by the device carrying the video file, which is not limited in this embodiment of the present invention.
The device 320 may be a terminal device. For example, the device 320 may be a cell phone, a tablet computer, a laptop portable computer, a desktop computer, or the like. That is, the specific type of the device 320 may be selected according to the actual needs of the user, and the embodiment of the present application is not limited thereto. And, the device 320 is provided with communication capabilities, and may run a browser or other application capable of loading and displaying web pages. For example, the application program may be a conference management application, a social application, an office application, or the like.
it should be noted that the device 330, the device 340, the device 350, and the monitoring device 360 are similar to the device 320, and are not described in detail herein, and refer to the foregoing description of the device 320.
In the embodiment of the present application, during the testing of the video transmission quality, the device 320 and the device 330 may be the same type and the same model of device, and the device 340 and the device 350 may also be the same type and the same model of device. That is to say, the embodiments of the present application can avoid the problem caused by the display difference of different devices in the prior art by arranging the corresponding sides in the same hardware environment.
The device 320 and the device 330 respectively acquire video source data corresponding to the video source 310. The device 320 may pre-process and encode video source data corresponding to the video source 310, and the device 330 may also pre-process and encode video source data corresponding to the video source 310, wherein the device 320 and the device 330 may encode by using different encoding methods. For example, the device 330 and the device 330 may employ different software encoders for encoding, such that the impact of the different software encoders on video transmission quality can be determined by the application scenario 300. That is to say, under the condition that the influence of the hardware environment is eliminated, the embodiment of the application can determine the influence of the software-related processing modes such as different codes on the video transmission quality.
The device 340 acquires the video data transmitted by the device 320, and the device 340 decodes and pre-processes the received video data to play the video. And, the device 340 obtains a picture in the current window of the device 340 through an API (Application Programming Interface) Interface, and sends the captured window picture to the monitoring device 360.
it should be noted that the process of the device 350 acquiring the window frame and sending the window frame to the monitoring device 360 is similar to the process of the device 340 acquiring the window frame and sending the window frame to the monitoring device 360, and detailed description is not repeated here, and specific reference may be made to the foregoing description about the device 340 acquiring the window frame and sending the window frame to the monitoring device 360.
The monitoring device 360 acquires the window screen sent by the device 340 and the window screen sent by the device 350, and the monitoring device 360 simultaneously displays the window screen sent by the device 340 and the window screen sent by the device 350 through the same screen, so that the user 370 can evaluate the video transmission quality. In addition, the generation process of the same screen shown in fig. 3 will be described below, and will not be described here, and specific reference may be made to the related description below.
It should be noted that the method for testing video transmission quality provided by the embodiment of the present invention may be further extended to other suitable implementation scenarios, and is not limited to the application scenario 300 shown in fig. 3. Although only the device 340 and the device 350 are shown in fig. 3 to send window screens to the monitoring device 360, it should be understood by those skilled in the art that the application scenario 300 may include more or less devices in the process of actual application as long as the monitoring device 360 is ensured to acquire window screens of at least two devices.
In order to facilitate understanding of the technical solution of the present application, a test for realizing video transmission quality by sending window pictures to a monitoring device through two devices (i.e., the device 2 and the device 4) is described as an example.
It should be understood that, in the case of having N devices to send window pictures to the monitoring device, the related flow of each device may be referred to the related description of device 2 and device 4 below, and the process of the monitoring device processing N window pictures may also be referred to the process of the monitoring device processing 2 window pictures in fig. 4, where N is a positive integer greater than or equal to 2, and will not be described in detail later.
Referring to fig. 4, fig. 4 is a flowchart illustrating a method for testing video transmission quality according to an embodiment of the present application. The method as shown in fig. 4 comprises the following steps:
In step S411, the device 1 transmits video data to the device 2.
Specifically, the device 1 may obtain video source data corresponding to a video source, and the device 1 performs preprocessing and encoding on the video source data corresponding to the video source, so that the device 1 may convert the video source data corresponding to the video source into a format required for transmission. And, device 1 may transmit the converted video data to device 2.
it should be understood that the video source may be a target video file, so that the device 1 does not need to go through a video acquisition process, and the device 1 may directly obtain video data corresponding to the video source in a reading or website downloading manner, which is not limited in this embodiment of the present application.
It should also be understood that the manner in which the device 1 preprocesses the video data corresponding to the video source may also be set according to actual requirements, and the embodiment of the present application is not limited thereto.
it should also be understood that the manner in which the device 1 encodes the video data corresponding to the video source may also be set according to actual requirements, and the embodiment of the present application is not limited thereto.
For example, the manner in which the device 1 encodes the video data corresponding to the video source includes a preset frame rate (e.g., 30 frames, etc.), and the preset frame rate may be set according to actual requirements.
For another example, the mode of encoding the video data corresponding to the video source by the apparatus 1 includes an encoding format (e.g., h.264 encoding format, etc.), and the encoding format here may also be set according to actual requirements.
In step S412, the device 3 transmits video data to the device 4.
It should be noted that the process of the device 3 sending video data to the device 4 is similar to the process of the device 1 sending video data to the device 2, and details will not be described here, and specific reference may be made to the foregoing description about sending video data by the device 1 to the device 2.
It should be further noted that, in order to avoid the problem caused by the display difference of the devices, the devices 1 and 3 may be the same type and the same model, and the devices 2 and 4 may be the same type and the same model, which is not limited to this embodiment of the present application.
In step S413, the device 2 plays the video data transmitted by the device 1.
Specifically, after the device 2 receives the video data sent by the device 1, the device 2 decodes and pre-processes the video data sent by the device 1, and plays the video data.
It should be understood that, since the manner in which the device 1 encodes the video source data corresponding to the video source may be set according to actual requirements, the manner in which the device 2 decodes the video data sent by the device 1 may also be set according to actual requirements, and the embodiment of the present application is not limited to this.
It should also be understood that the manner in which the device 2 preprocesses the video data sent by the device 1 may also be set according to actual requirements, and the embodiment of the present application is not limited thereto.
In step S414, the device 2 acquires a window screen displayed on the display screen of the device 2.
It should be understood that the window frame may also be referred to as window video data, which may also be referred to as screen video data, and the embodiments of the present application are not limited thereto.
It should also be understood that the implementation manner of the device 2 acquiring the window frame displayed by the display screen of the device 2 may be set according to actual requirements, and the embodiment of the present application is not limited thereto.
alternatively, the device 2 may obtain the screen refresh rate of the device 2, and the device 2 compares the screen refresh rate of the device 2 with the target frame rate. And the device 2 determines the smaller value of the screen refresh rate and the target frame rate as the screen sampling frequency, and the device 2 captures the picture displayed by the display screen of the device 2 through the screen sampling frequency, so that the device 2 can acquire the window picture displayed by the display screen of the device 2.
The target frame rate may be determined by a preset frame rate in a manner that the device 1 encodes video source data corresponding to a video source. For example, the target frame rate may be a preset multiple of the preset frame rate (for example, in the case that the preset frame rate may be 30HZ, the target frame rate may be 2 times of the preset frame rate, that is, the target frame rate is 60HZ), where the preset multiple may be set according to actual requirements, and the embodiment of the present application is not limited thereto.
In order to facilitate understanding of the embodiments of the present application, the following description will be given by way of specific examples.
In the case where the screen refresh rate of the device 2 is 60HZ and the target frame rate is 50HZ, and the device 2 determines that the target frame rate is less than the screen refresh rate, the device 2 may determine the target frame rate as the screen sampling frequency, that is, the device 2 captures a picture displayed on the display screen of the device 2 from the display area of the device 2 through 50HZ, so that the device 2 may acquire a window picture displayed on the display screen of the device 2.
it should be noted that, although the embodiment of the present application shows a manner in which the device 2 determines the smaller value of the screen refresh rate and the target frame rate as the screen sampling frequency, in a case in which the device 2 determines that the screen refresh rate and the target frame rate are the same value, the device 2 may use any one value of the screen refresh rate and the target frame rate as the screen sampling frequency, and the embodiment of the present application is not limited thereto.
Alternatively, the device 2 may directly use the target frame rate as the screen sampling frequency, so that the device 2 acquires the window picture displayed on the display screen of the device 2.
In step S415, the device 4 plays the video data transmitted by the device 3.
It should be noted that the process of playing the video data sent by the device 3 by the device 4 is similar to the process of playing the video data sent by the device 1 by the device 2, and detailed description is omitted here, and specific reference may be made to the foregoing description of playing the video data sent by the device 1 by the device 2.
In step S416, the device 4 acquires a window screen displayed on the display screen of the device 4.
It should be noted that the process of the device 4 acquiring the window picture displayed by the display screen of the device 4 is similar to the process of the device 2 acquiring the window picture displayed by the display screen of the device 2, and detailed description is not provided herein, and specific reference may be made to the foregoing description of the device 2 acquiring the window picture displayed by the display screen of the device 2.
It should be noted that step S414 and step S416 may also be combined into one step. For example, step S414 and step S416 may be combined into the following steps: the third device acquires a window picture displayed by the display screen, where the third device may be any one of N devices (e.g., device 2 and device 4) that send the window picture to the monitoring device, that is, the third device may be device 2 or device 4, where N is a positive integer greater than or equal to 2, and the embodiment of the present application is not limited thereto.
In step S417, the device 2 transmits the window screen to the monitoring device. Correspondingly, the monitoring device acquires a window screen of the device 2.
Specifically, in the process of the device 2 transmitting the window picture to the monitoring device, the device 2 may encode the window picture into video data in a desired format, so that the device 2 transmits the encoded video data to the monitoring device. Correspondingly, when the monitoring device acquires the video data sent by the device 2, the monitoring device may acquire the window picture in a decoding manner.
It should be understood that the manner in which the device 2 encodes the window picture may be set according to actual requirements, and the embodiment of the present application is not limited thereto.
For example, the manner of encoding the window picture by the device 2 includes a preset frame rate, where the preset frame rate may be a screen sampling frequency, and may also be set according to actual requirements.
For another example, the device 2 may re-encode the window picture into RTP (Real-time Transport Protocol) video data.
In step S418, the device 4 sends a window frame to the monitoring device, where the window frame of the device 4 and the window frame of the device 2 are from the same video source. Correspondingly, the monitoring device obtains a window screen of the device 4.
It should be noted that the process of the device 4 sending the window frame to the monitoring device is similar to the process of the device 2 sending the window frame to the monitoring device, and details will not be described here, and specific reference may be made to the foregoing description of the device 2 sending the window frame to the monitoring device.
It should be noted that step S417 and step S418 may be combined into one step. For example, step S417 and step S418 may be combined into the following steps: the third device sends the window picture to the monitoring device, where the third device may be any one of N devices (e.g., device 2 and device 4) that send the window picture to the monitoring device, that is, the third device may be device 2 or device 4, where N is a positive integer greater than or equal to 2, and this embodiment of the application is not limited to this.
Correspondingly, when step S417 and step S418 are combined into one step, the following steps may be further included: the monitoring device acquires window screens of N devices (e.g., device 2 and device 4).
In step S419, the monitoring device generates the same screen according to the window screen of the device 2 and the window screen of the device 4. Wherein the same screen is used to simultaneously display the window screen of the device 2 and the window screen of the device 4.
It should be understood that the same frame may be displayed in a manner of displaying two same frames, or displaying a complete frame, where the complete frame is formed by a partial frame in the window frame sent by the device 2 and a partial frame in the window frame sent by the device 4, and the embodiment of the present application is not limited thereto.
it should be understood that the window frame sent by the device 2 and the window frame sent by the device 4 may be frames corresponding to the same frame, or may also be frames corresponding to different frames due to network delay, and the embodiment of the present application is not limited thereto.
It should also be understood that the two identical frames may be corresponding to the same frame, or may also be corresponding to different frames due to network delay, and the embodiment of the present application is not limited thereto.
in the case that the same screen has different display modes, the monitoring device may generate the same screen from the window screen of the device 2 and the window screen of the device 4, or may have different implementation modes.
In order to facilitate understanding of the embodiments of the present application, the following description will be given by way of specific examples.
Optionally, in a case that the display mode of the same picture is a complete picture (that is, the same picture includes a first sub-picture and a second sub-picture, the first sub-picture is used for a picture corresponding to the first sub-picture in the window picture of the display device 2, and the second sub-picture is used for a picture corresponding to the second sub-picture in the window picture of the display device 4), the monitoring device determines first attribute information corresponding to the first sub-picture and second attribute information corresponding to the second sub-picture, respectively. The first attribute information includes a position and a size of a display area corresponding to the first sub-screen, and the second attribute information includes a position and a size of a display area corresponding to the second sub-screen.
In the case where the monitoring apparatus determines the first attribute information and the second attribute information, the monitoring apparatus may render a partial screen corresponding to the first sub-screen (or a display area corresponding to the first sub-screen) in the window screen transmitted by the apparatus 2 into the display area corresponding to the first sub-screen according to the size and the position of the display area corresponding to the first sub-screen in the first attribute information.
And the monitoring device may further render a part of the screen corresponding to the second sub-screen (or the display area corresponding to the second sub-screen) in the window screen sent by the device 4 into the display area corresponding to the second sub-screen according to the size and the position of the display area corresponding to the second sub-screen in the second attribute information. Therefore, through the process, the monitoring device can splice the first sub-picture and the second sub-picture into the same picture according to the first sub-picture and the second sub-picture.
further, the same screen may be displayed in a display area of the monitoring apparatus or a display apparatus connected to the monitoring apparatus, where the same screen may be displayed in a manner as shown in fig. 3 (a left part of the screen shown in fig. 3 is a partial screen of a window screen of the apparatus 340, and a right part of the screen is a partial screen of a window screen of the apparatus 350).
In order to facilitate understanding of the same picture, the following description is made by way of specific embodiments.
Under the condition that a certain picture captured by the equipment 2 and the equipment 4 only contains two characters of "beijing", the same picture of the monitoring equipment can display the two characters of "beijing", wherein the area for displaying the "beijing" character comes from a partial picture in a window picture of the equipment 2, and the area for displaying the "beijing" character comes from a partial picture in a window picture of the equipment 4. That is, one part of the complete picture is a partial picture in the window picture of the device 2, and the other part is a partial picture in the window picture of the device 4.
Here, in order to distinguish the first sub-picture from the second sub-picture more clearly, a dividing line may be provided on an adjacent boundary between the first sub-picture and the second sub-picture. And in order to meet the requirements of the user, the user can move the position of the dividing line by touching or remote control of a remote controller and the like. And in the process of moving the dividing line, the monitoring device can adjust the size of the first sub-picture and the position and the size of the second sub-picture in the same picture by repeating the generation process of the same picture in the foregoing.
Therefore, the user in the embodiment of the present application can observe the video on the same picture, and since a part of the same picture may be a partial picture in the window picture of the device 2 and another part may be a partial picture in the window picture of the device 4, the user is more sensitive to the difference of the static picture, the dynamic detail and the delay.
Optionally, in a case that the same screen is displayed in a manner of displaying two same screens (that is, the same screen includes a third sub-screen and a fourth sub-screen, and the third sub-screen and the fourth sub-screen may be images of the same frame or images of different frames), the monitoring device determines third attribute information corresponding to the third sub-screen and fourth attribute information corresponding to the fourth sub-screen, respectively. Wherein the third attribute information includes a position and a size of a display area corresponding to the third sub-screen, and the fourth attribute information includes a position and a size of a display area corresponding to the fourth attribute information.
When the monitoring device determines the third attribute information and the fourth attribute information, the monitoring device may adjust the size of the window screen transmitted by the device 2 by the position and size of the display area corresponding to the third sub-screen in the third attribute information. And the monitoring device can also display the window picture sent by the adjusted device 2 in the display area corresponding to the third sub-picture.
And the monitoring apparatus may also adjust the size of the window screen transmitted by the apparatus 4 by the position and size of the display area corresponding to the fourth sub-screen in the fourth attribute information. And the monitoring device may further display the window picture sent by the adjusted device 4 in a display area corresponding to the fourth sub-picture. Therefore, the monitoring device can splice the third sub-picture and the fourth sub-picture into the same picture.
Further, the same screen may be displayed through a display area of the monitoring apparatus or a display apparatus connected to the monitoring apparatus. Here, the same screen may simultaneously display the video data sent by the device 2 and the video data sent by the device 4, that is, the same screen may display images of two same frames, or may display images of different frames due to network delay and the like. The two identical frames may refer to the same displayed content, but the sizes of the two identical frames may be set according to actual requirements.
In order to facilitate understanding of the same picture, the following description is made by way of specific embodiments.
Under the condition that a certain picture captured by the equipment 2 and the equipment 4 only contains two characters of Beijing, two pieces of Beijing can be displayed on the same picture of the monitoring equipment, wherein one area displaying the Beijing is a window picture of the equipment 2, and the other area displaying the Beijing is a window picture of the equipment 4.
Here, in order to distinguish two identical pictures more clearly, a dividing line may be provided on an adjacent boundary of the two identical pictures. And in order to meet the requirements of the user, the user can move the position of the dividing line by touching or remote control of a remote controller and the like. And in the process of moving the dividing line, the monitoring device can adjust the position and the size of two same pictures in the same picture by repeating the generation process of the same picture in the foregoing.
In step S420, the monitoring device displays the same picture, so that the user can evaluate the video transmission quality from the same video source to the device 2 or the device 4 according to the same picture.
It should be appreciated that user ratings of video transmission quality may be compared from the three aspects of still image quality, continuously varying dynamic quality, and delay. The static image quality can include parameters such as definition, brightness, contrast and color of a single frame image; the continuously changing dynamic quality can comprise parameters such as continuity, definition and the like of playing multiple frames of images; the delay may indicate how well the video is coherent.
Wherein the static image quality and the continuously changing dynamic quality may be affected by encoding, network, etc., and the delay may be affected by a network (e.g., a network between the device 1 and the device 2, etc.), etc.
Therefore, in the embodiment of the application, the monitoring device generates the same picture from the acquired window picture of each of the N devices, and the monitoring device displays the window picture of each of the N devices through the same picture, so that a user can evaluate the video transmission quality from the same video source to each of the N devices according to the same picture, where N is a positive integer greater than or equal to 2. Therefore, the window picture of each of the N devices is displayed simultaneously through the same picture, so that a user does not need to watch a plurality of video clips at intervals for a plurality of times, and the problem that the user forgets to play the details of the video can be avoided. And each of the N devices is from the same video source, thereby also avoiding problems caused by different video sources.
It should be understood that the above-described method for testing video transmission quality is only exemplary, and those skilled in the art can make various modifications according to the above-described method.
for example, while the operations of the method of the invention are depicted in the drawings in a particular order, this does not require or imply that the operations must be performed in this particular order, or that all of the illustrated operations must be performed, to achieve desirable results. Rather, the steps depicted in the flowcharts may change the order of execution. For example, step S415 may be provided before step S414. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions. For example, step S417 and step S418 may be combined into one step.
referring to fig. 5, fig. 5 shows a block diagram of a device 500 for testing video transmission quality according to an embodiment of the present application, it should be understood that the device 500 corresponds to the monitoring apparatus side in the embodiment of the method in fig. 4, and is capable of performing various steps related to the monitoring apparatus side in the embodiment of the method, and specific functions of the device 500 may be referred to the description above, and detailed descriptions are appropriately omitted here to avoid repetition. The device 500 includes at least one software functional module that can be stored in a memory in the form of software or firmware (firmware) or solidified in an Operating System (OS) of the device 500. Specifically, the apparatus 500 includes:
a first obtaining module 510, configured to obtain a window picture of each of N devices, where the window picture of each of the N devices is from the same video source, and N is a positive integer greater than or equal to 2; a generating module 520, configured to generate a same screen according to the window screen of each device, where the same screen is used to simultaneously display the window screen of each device of the N devices; a display module 530 for displaying the same picture so that the user can evaluate the video transmission quality from the same video source to each of the N devices according to the same picture.
In one possible embodiment, the N devices include a first device and a second device, and the same picture includes a first sub-picture and a second sub-picture, the first sub-picture is used for displaying a picture corresponding to the first sub-picture in a window picture of the first device, and the second sub-picture is used for displaying a picture corresponding to the second sub-picture in a window picture of the second device.
In one possible embodiment, the generating module 520 includes: a determining module (not shown) for determining first attribute information of the first sub-picture and second attribute information of the second sub-picture, respectively, wherein the first attribute information includes a position and a size of a display area corresponding to the first sub-picture, and the second attribute information includes a position and a size of a display area corresponding to the second sub-picture; and a generation sub-module (not shown) for generating the same screen according to the first attribute information, the second attribute information, the window screen of the first device, and the window screen of the second device.
In one possible embodiment, the rendering module (not shown) is configured to render a screen corresponding to a first sub-screen in a window screen of the first device into a display area corresponding to the first sub-screen according to the first attribute information; the rendering module is further used for rendering a picture corresponding to the second sub-picture in the window picture of the second device into a display area corresponding to the second sub-picture according to the second attribute information; and the generation sub-module is also used for generating the same picture according to the first sub-picture and the second sub-picture.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the apparatus described above may refer to the corresponding process in the foregoing method, and will not be described in too much detail herein.
Referring to fig. 6, fig. 6 shows a block diagram of a device 600 for testing video transmission quality according to an embodiment of the present application, and it should be understood that the device 600 corresponds to the third device (e.g., device 2 or device 4) side in the above-described method embodiment of fig. 4, and is capable of performing various steps related to the third device side in the above-described method embodiment, and specific functions of the device 600 may be referred to the description above, and a detailed description is appropriately omitted here to avoid redundancy. The device 600 includes at least one software functional module that can be stored in a memory in the form of software or firmware (firmware) or solidified in an Operating System (OS) of the device 600. Specifically, the apparatus 600 includes:
a second obtaining module 610, configured to obtain a window frame displayed by a display screen of a third device; the sending module 620 is configured to send the window frame to the monitoring device, so that the monitoring device simultaneously displays the window frames of the N devices through the same frame, where the N devices include the third device, the window frame of each of the N devices is from the same video source, and the same frame is used to simultaneously display the window frame of each of the N devices.
it is clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the apparatus described above may refer to the corresponding process in the foregoing method, and will not be described in too much detail herein.
The present application further provides an electronic device 700, where the electronic device 700 may be disposed in a monitoring device or a third device.
Fig. 7 is a block diagram of an electronic device 700 according to an embodiment of the present disclosure, and as shown in fig. 7, the electronic device 700 may include a processor 710, a communication interface 720, a memory 730, and at least one communication bus 740. Wherein a communication bus 740 is used to enable direct, connected communication of these components. In this embodiment, the communication interface 720 of the device in this application is used for performing signaling or data communication with other node devices. Processor 710 may be an integrated circuit chip having signal processing capabilities. The Processor 710 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor 710 may be any conventional processor or the like.
The Memory 730 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like. The memory 730 stores computer readable instructions, and when the computer readable instructions are executed by the processor 710, the electronic device 700 may perform the steps of the corresponding apparatus side in the embodiment of the method in fig. 4. For example, in the case where the electronic device 700 is provided in a monitoring device, the memory 730 stores computer-readable instructions, and when the computer-readable instructions are executed by the processor 710, the electronic device 700 may perform the steps of the monitoring device side in the embodiment of the method of fig. 4 described above.
The electronic device 700 may further include a memory controller, an input-output unit, an audio unit, and a display unit.
The memory 730, the memory controller, the processor 710, the peripheral interface, the input/output unit, the audio unit, and the display unit are electrically connected to each other directly or indirectly to realize data transmission or interaction. For example, these components may be electrically coupled to each other via one or more communication buses 740. The processor 710 is adapted to execute executable modules stored in the memory 730, such as software functional modules or computer programs comprised by the electronic device 700.
The input and output unit is used for providing input data for a user to realize the interaction of the user and the server (or the local terminal). The input/output unit may be, but is not limited to, a mouse, a keyboard, and the like.
The audio unit provides an audio interface to the user, which may include one or more microphones, one or more speakers, and audio circuitry.
The display unit provides an interactive interface (e.g. a user interface) between the electronic device and a user or for displaying image data to a user reference. In this embodiment, the display unit may be a liquid crystal display or a touch display. In the case of a touch display, the display can be a capacitive touch screen or a resistive touch screen, which supports single-point and multi-point touch operations. The support of single-point and multi-point touch operations means that the touch display can sense touch operations simultaneously generated from one or more positions on the touch display, and the sensed touch operations are sent to the processor for calculation and processing.
It will be appreciated that the configuration shown in fig. 7 is merely illustrative and that the electronic device 700 may include more or fewer components than shown in fig. 7 or may have a different configuration than shown in fig. 7. The components shown in fig. 7 may be implemented in hardware, software, or a combination thereof.
The present application provides a storage medium having a computer program stored thereon, which when executed by a processor performs the method according to any of the alternative implementations on the monitoring device side in fig. 4.
the present application provides a storage medium having stored thereon a computer program which, when executed by a processor, performs the method of any of the alternative implementations on the third device (e.g., device 2 or device 4) side of fig. 4.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the system described above may refer to the corresponding process in the foregoing method, and will not be described in too much detail herein.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. For the device-like embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
the functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes. It is 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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
the above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A method for testing video transmission quality, comprising:
The method comprises the steps that monitoring equipment obtains a window picture of each of N equipment, wherein the window picture of each of the N equipment is from the same video source, and N is a positive integer greater than or equal to 2;
The monitoring equipment generates the same picture according to the window picture of each piece of equipment, wherein the same picture is used for simultaneously displaying the window picture of each piece of equipment in the N pieces of equipment;
The monitoring device displays the same picture so that a user can evaluate the video transmission quality from the same video source to each of the N devices according to the same picture.
2. The method according to claim 1, wherein the N devices include a first device and a second device, and the same picture includes a first sub-picture and a second sub-picture, the first sub-picture is used for displaying a picture corresponding to the first sub-picture in the window pictures of the first device, and the second sub-picture is used for displaying a picture corresponding to the second sub-picture in the window pictures of the second device.
3. The method of claim 2, wherein the monitoring device generates the same picture from the window picture of each device, comprising:
The monitoring equipment respectively determines first attribute information of the first sub-picture and second attribute information of the second sub-picture, wherein the first attribute information comprises the position and the size of a display area corresponding to the first sub-picture, and the second attribute information comprises the position and the size of a display area corresponding to the second sub-picture;
And the monitoring equipment generates the same picture according to the first attribute information, the second attribute information, the window picture of the first equipment and the window picture of the second equipment.
4. The method of claim 3, wherein the monitoring device generating the same screen according to the first attribute information, the second attribute information, the window screen of the first device, and the window screen of the second device comprises:
The monitoring equipment renders a picture corresponding to the first sub-picture in a window picture of the first equipment into a display area corresponding to the first sub-picture according to the first attribute information; and the number of the first and second groups,
The monitoring equipment renders a picture corresponding to the second sub-picture in a window picture of the second equipment into a display area corresponding to the second sub-picture according to the second attribute information;
And the monitoring equipment generates the same picture according to the first sub-picture and the second sub-picture.
5. A method for testing video transmission quality, comprising:
The method comprises the steps that a third device obtains a window picture displayed by a display screen of the third device;
The third device sends the window picture to the monitoring device, so that the monitoring device can simultaneously display the window pictures of the N devices through the same picture, the N devices comprise the third device, the window picture of each device in the N devices is from the same video source, and the same picture is used for simultaneously displaying the window picture of each device in the N devices.
6. an apparatus for testing video transmission quality, applied to a monitoring device, the apparatus comprising:
The device comprises a first acquisition module, a second acquisition module and a display module, wherein the first acquisition module is used for acquiring a window picture of each of N devices, the window picture of each of the N devices is from the same video source, and N is a positive integer greater than or equal to 2;
A generating module, configured to generate a same picture according to the window picture of each device, where the same picture is used to simultaneously display the window picture of each device of the N devices;
And the display module is used for displaying the same picture so that a user can evaluate the video transmission quality from the same video source to each of the N devices according to the same picture.
7. The apparatus according to claim 6, wherein the N devices comprise a first device and a second device, and the same frame comprises a first sub-frame and a second sub-frame, the first sub-frame is used for displaying a frame corresponding to the first sub-frame in the window frame of the first device, and the second sub-frame is used for displaying a frame corresponding to the second sub-frame in the window frame of the second device.
8. The apparatus of claim 7, wherein the generating module comprises:
A determining module, configured to determine first attribute information of the first sub-picture and second attribute information of the second sub-picture, respectively, where the first attribute information includes a position and a size of a display area corresponding to the first sub-picture, and the second attribute information includes a position and a size of a display area corresponding to the second sub-picture;
And the generating submodule is used for generating the same picture according to the first attribute information, the second attribute information, the window picture of the first equipment and the window picture of the second equipment.
9. The apparatus according to claim 8, wherein the rendering module is configured to render a screen corresponding to the first sub-screen in a window screen of the first device into a display area corresponding to the first sub-screen according to the first attribute information;
The rendering module is further configured to render, according to the second attribute information, a picture corresponding to the second sub-picture in a window picture of the second device into a display area corresponding to the second sub-picture;
the generating sub-module is further configured to generate the same picture according to the first sub-picture and the second sub-picture.
10. An apparatus for testing video transmission quality, applied to a third device, the apparatus comprising:
the second acquisition module is used for acquiring a window picture displayed by a display screen of the third equipment;
The sending module is configured to send the window frame to the monitoring device, so that the monitoring device displays the window frames of the N devices through the same frame at the same time, where the N devices include the third device, the window frame of each device in the N devices is from the same video source, and the same frame is used for displaying the window frame of each device in the N devices at the same time.
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Application publication date: 20191213 |