CN110493592B - Video time delay testing method and device, computer equipment and storage medium - Google Patents
Video time delay testing method and device, computer equipment and storage medium Download PDFInfo
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Abstract
The application relates to a video time delay testing method, a video time delay testing device, a computer readable storage medium and computer equipment, wherein the method comprises the following steps: acquiring video state change time information, wherein the video state change time information is determined by the state change of a test image corresponding to a first video test sequence; receiving an audio signal, wherein the audio signal is obtained by converting an optical signal corresponding to a playing interface of a first terminal acquired in real time by a photoelectric conversion device, and the first terminal is used for playing when receiving video data corresponding to a first video test sequence; and determining the video playing time delay corresponding to the first video test sequence according to the video state change time information and the audio signal. The scheme provided by the application can improve the accuracy of the video time delay test data in the video playing process.
Description
Technical Field
The present application relates to the field of computer technologies, and in particular, to a video delay testing method and apparatus, a computer device, and a storage medium.
Background
With the development of computer technology, video time delay is generated in the process from the beginning of video acquisition to the last video playing, and the video time delay is one of the most important reference indexes for optimizing the process from the video acquisition to the video playing. However, at present, for a method of evaluating video delay, the most common method is to manually count the receiving time of the receiving end for receiving the video and the sending time of the sending end for sending the video, and then use the time difference between the receiving time and the sending time as the video delay between the receiving end and the sending end, but the accuracy of video delay test data is easily low through manual statistics.
Disclosure of Invention
Therefore, it is necessary to provide a video delay test method, device, computer device and storage medium for testing video delay between a receiving end and a transmitting end, so as to improve accuracy of video delay test data.
A video time delay test method comprises the following steps:
acquiring video state change time information, wherein the video state change time information is determined by the state change of a test image corresponding to a first video test sequence;
receiving an audio signal, wherein the audio signal is obtained by converting an optical signal corresponding to a playing interface of a first terminal acquired in real time by a photoelectric conversion device, and the first terminal is used for playing when receiving video data corresponding to a first video test sequence;
and determining the video playing time delay corresponding to the first video test sequence according to the video state change time information and the audio signal.
A video latency test system, the system comprising:
the computer equipment is respectively connected with the first terminal and the second terminal;
the photoelectric conversion device covers a playing interface of the first terminal and comprises a photosensitive resistor and an audio line connected with the photosensitive resistor;
the photoelectric conversion device is connected with the computer equipment through an audio cable.
A video latency testing apparatus, the apparatus comprising:
the acquisition module is used for acquiring video state change time information, and the video state change time information is determined by the state change of a test image corresponding to the first video test sequence;
the receiving module is used for receiving an audio signal, the audio signal is obtained by converting an optical signal corresponding to a real-time acquisition playing interface of the first terminal through the photoelectric conversion device, and the first terminal is used for playing when receiving video data corresponding to the first video test sequence;
and the generating module is used for determining the video playing time delay corresponding to the first video test sequence according to the video state change time information and the audio signal.
A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps when executing the program of:
acquiring video state change time information, wherein the video state change time information is determined by the state change of a test image corresponding to a first video test sequence;
receiving an audio signal, wherein the audio signal is obtained by converting an optical signal corresponding to a playing interface of a first terminal acquired in real time by a photoelectric conversion device, and the first terminal is used for playing when receiving video data corresponding to a first video test sequence;
and determining the video playing time delay corresponding to the first video test sequence according to the video state change time information and the audio signal.
A computer-readable storage medium having stored thereon a computer program which, when executed by a processor, causes the processor to perform the steps of:
acquiring video state change time information, wherein the video state change time information is determined by the state change of a test image corresponding to a first video test sequence;
receiving an audio signal, wherein the audio signal is obtained by converting an optical signal corresponding to a playing interface of a first terminal acquired in real time by a photoelectric conversion device, and the first terminal is used for playing when receiving video data corresponding to a first video test sequence;
and determining the video playing time delay corresponding to the first video test sequence according to the video state change time information and the audio signal.
The video time delay testing method, the video time delay testing device, the computer readable storage medium and the computer device acquire video state change time information, wherein the video state change time information is determined by state change of a testing image corresponding to a first video testing sequence played by a second terminal, the computer device receives an audio signal, the audio signal is obtained by converting an optical signal corresponding to a playing interface of the first terminal through a photoelectric conversion device according to real-time acquisition, the first terminal is used for playing when receiving video data corresponding to the first video testing sequence, and finally the computer device determines video playing time delay corresponding to the first video testing sequence according to the video state change time information and the audio signal. The photoelectric conversion device converts the optical signal corresponding to the first terminal playing interface into the audio signal, and the detected time point of the video image state change is accurate when the photoelectric conversion device plays the first video test sequence on the first terminal playing interface, so that the pulse time corresponding to the video image state change in the converted audio signal is also accurate, the error of finally calculating the video playing time delay is small, and the accuracy of the video playing time delay test is ensured. Furthermore, the video playing time delay of the first terminal and the second terminal is detected through the photoelectric conversion device, the detection is irrelevant to the equipment of the first terminal and the second terminal and the illumination environment, cross-platform testing can be achieved, manual intervention is not needed, and the working efficiency of video playing time delay testing is improved. The hardware equipment of the photoelectric conversion device is simple and easy to use, and the cost is low.
Drawings
FIG. 1 is a diagram of an exemplary embodiment of a video latency testing method;
FIG. 2 is a flow chart illustrating a video latency testing method according to an embodiment;
FIG. 3 is a schematic diagram of a video latency testing method in one embodiment;
fig. 4 is a schematic flowchart of a video play delay generation step corresponding to a first video test sequence in an embodiment;
FIG. 5 is a block diagram of a video latency testing system in one embodiment;
FIG. 6 is a block diagram of a video latency testing system in accordance with yet another embodiment;
FIG. 7 is a block diagram of an exemplary video latency testing apparatus;
FIG. 8 is a block diagram showing the structure of a generating module in another embodiment;
FIG. 9 is a block diagram of a computer device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Fig. 1 is an application environment diagram of a video latency testing method in an embodiment. Referring to fig. 1, the video latency testing method is applied to a video latency testing system. The video latency test system comprises a first terminal 110, a second terminal 120, a third terminal 130, a computer device 140 and a photoelectric conversion device 150. The first terminal 110 and the second terminal 120 may be connected to the computer device 140 through a network connection or a Universal Serial Bus (USB) line, respectively, the photoelectric conversion device 150 includes a photo resistor and an audio line connected to the photo resistor, and the photoelectric conversion device 150 is connected to the computer device 140 through the audio line. The first terminal 110, the second terminal 120, the third terminal 130 and the computer device 140 may specifically be desktop terminals or mobile terminals, and the mobile terminals may specifically be at least one of a mobile phone, a tablet computer, a notebook computer, and the like, where the third terminal 130 must include an image capturing device. Wherein the computer device 140 may also be implemented as a stand-alone server or as a server cluster comprising a plurality of servers.
Specifically, the first terminal 110 and the second terminal 120 may be connected to the computer device 140 through a network connection or a USB cable, respectively, the computer device 140 issues a control instruction to the second terminal 120, the second terminal 120 receives the control instruction and plays the first video test sequence according to the control instruction, and the computer device 140 obtains video state change time information determined by a state change of a test image corresponding to the first video test sequence. The image acquisition device of the third terminal 130 covers the playing interface of the second terminal, and acquires the playing interface of the second terminal 120 through the image acquisition device, so as to acquire the video data corresponding to the first video test sequence, and send the acquired video data corresponding to the first video test sequence to the first terminal 110, and the first terminal 110 receives the video data corresponding to the first video test sequence and plays the video data on the related playing interface.
Further, the photoelectric conversion device 150 covering the playing interface of the first terminal 110 collects the optical signal corresponding to the playing interface of the first terminal 110 in real time, converts the collected optical signal into an audio signal through a photoresistor in the photoelectric conversion device 150, and transmits the audio signal to the computer device 140 through an audio line in the photoelectric conversion device 150. The computer device 140 receives the audio signal and determines a video playback delay corresponding to the first video test sequence based on the audio signal and the video state change time information.
In one embodiment, as shown in fig. 2, a video latency testing method is provided. The embodiment is mainly illustrated by applying the method to the computer device 140 in fig. 1. Referring to fig. 2, the video latency testing method specifically includes the following steps:
Wherein the first video test sequence is composed of a pre-constructed video picture with a state change, and the first video test sequence can be stored in the second terminal in advance. The state change refers to a difference that can be detected by the photoelectric conversion device in the test image, such as a first video test sequence that can be transited from a first state to a second state, or a first video test sequence that can be transited from the second state to the first state, or a first video test sequence that can be transited from a third state to a fourth state, or a first video test sequence that can be transited from the fourth state to the third state, and so on. Wherein the first state and the second state may be, but are not limited to, black and white states of the first video test sequence.
The video state change time information refers to a time point when a state of a test image corresponding to a first video test sequence changes, and the video state change time information may be, but is not limited to, a time point when the test image corresponding to the first video test sequence jumps from a first state to a second state, or a time point when the test image corresponding to the first video test sequence jumps from the second state to the first state, or both the time point when the test image corresponding to the first video test sequence jumps from the first state to the second state and the time point when the test image corresponding to the first video test sequence jumps from the second state to the first state, and so on. Since the first video test sequence is a video frame with a state change, the corresponding video state change time information can be determined according to the state change of the test image corresponding to the first video test sequence. The specific way of determining the video state change time information may be, but is not limited to, taking a time point of the state change of the test image corresponding to the first video test sequence as the video state change time information. For example, the test image corresponding to the first video test sequence jumps from the first state to the second state at the time point T1, or the test image corresponding to the first video test sequence jumps from the second state to the first state at the time point T2, i.e., the time point T1 and the time point T2 are video state change time information.
In an embodiment, the obtaining of the video state change time information may be obtaining a time point of state change of a test image corresponding to a first video test sequence in a relevant configuration file of the first video test sequence in the second terminal, and then taking the time point of state change of the first video test sequence obtained from the configuration file as the video state change time information. If the video state change time information cannot be acquired from the related configuration file in the second terminal, the video state change time information is acquired by playing the first video test sequence and then performing image acquisition and detection, wherein the mode of playing the first video test sequence can be, but is not limited to, that a computer device issues a control instruction to the second terminal, the second terminal receives the control instruction and plays the first video test sequence according to the control instruction, or the second terminal presets the play time of the first video test sequence through the related configuration file, and when the play time is reached, the second terminal can automatically play the first video test sequence. And when the second terminal plays the first video test sequence, taking the time point of the state change of the test image corresponding to the first video test sequence as the video state change time information.
And 204, receiving an audio signal, wherein the audio signal is obtained by converting an optical signal corresponding to a real-time acquisition playing interface of the first terminal by the photoelectric conversion device, and the first terminal is used for playing when receiving video data corresponding to the first video test sequence.
The audio signal is obtained by converting the optical signal corresponding to the playing interface of the first terminal collected in real time through the photoelectric conversion device, and the audio signal can be embodied by but not limited to a curve composed of countless points on a plane coordinate. The photoelectric conversion device is a device for converting an optical signal of the first video test sequence with a state change into a corresponding audio signal, and includes, but is not limited to, a light-sensitive resistor, a power supply for supplying power to the light-sensitive resistor, an audio line connected to the light-sensitive resistor, and the like. The number of the photoresistors, the power supply and the audio lines in the photoelectric conversion device can be customized, and the photoelectric conversion device is covered on a related playing interface of a first terminal which is playing video data corresponding to the first video test sequence.
Specifically, when the video time delay generated in the video acquisition process does not need to be tested, the second terminal can directly send the video data corresponding to the first video test sequence to the first terminal, or when the time delay generated in the video acquisition process needs to be tested, the video data corresponding to the first video test sequence can be acquired through the image acquisition device of the third terminal, and then the third terminal sends the acquired video data corresponding to the first video test sequence to the first terminal. The video data corresponding to the first video test sequence may be video data that has been video-encoded or may be video data that has not been video-encoded. If the video data corresponding to the first video test sequence is video data which is subjected to video coding, the test video delay comprises video delay generated in the video coding process, and if the video data corresponding to the first video test sequence is video data which is not subjected to video coding, the test video delay does not comprise video delay generated in the video coding process. When the first terminal receives the video data corresponding to the first video test sequence, the video data corresponding to the received first video test sequence can be played through the playing interface.
Further, because the playing interface of the first terminal is playing the video data corresponding to the first video test sequence, and the video image frame on the playing interface of the first terminal also has a corresponding state change, then the photoelectric conversion device covering the playing interface of the first terminal playing the video data corresponding to the first video test sequence can acquire the optical signal on the playing interface of the first terminal in real time, specifically, the optical signal corresponding to the playing interface of the first terminal is acquired in real time through the photoresistor in the photoelectric conversion device, and the photoresistor in the photoelectric conversion device converts the acquired optical signal into the corresponding audio signal. The video data corresponding to the first video test sequence played on the first terminal playing interface is a video image with a state change, so that the photoresistor in the photoelectric conversion device acquires a corresponding optical signal through the video image with the state change, and converts the optical signal into an audio signal, namely, a corresponding pulse signal exists at a time point when the state change is performed each time. If the state change of the first video test sequence is a transition from the first state to the second state at the time point T1, the photoresistor in the photoelectric conversion device converts the audio signal into a corresponding pulse signal at the time point T1.
And step 206, determining the video playing time delay corresponding to the first video test sequence according to the video state change time information and the audio signal.
The video playing time delay refers to the time delay brought in the process from the acquisition to the playing of the whole video, and the time delay brought in the process from the acquisition to the playing of the whole video includes but is not limited to the processes of camera acquisition, preprocessing, encoding, network transmission, decoding, postprocessing, screen rendering and playing and the like. Further, after receiving the video state change time information and the audio signal, the computer device determines a video playing time delay corresponding to the first video test sequence according to the video state change time information and the audio signal, wherein specifically, a pulse signal corresponding to the video state change time information can be obtained from the audio signal, and then the video playing time delay corresponding to the first video test sequence is further calculated according to the time corresponding to the video state change time information and the pulse signal.
In an embodiment, if the video state change time information includes only one time point, a pulse signal corresponding to the video state change time information is obtained from the audio signal, a time point corresponding to the pulse signal is obtained, and then a difference value between the time point corresponding to the pulse signal and the video state change time information is directly used as the video playing delay corresponding to the first video test sequence.
In another embodiment, if the video state change time information includes a plurality of time points, the pulse signal corresponding to the video state time information is first obtained from the audio signal, then the time point corresponding to each pulse signal is obtained, the difference between the time point corresponding to the pulse signal and the corresponding video state change time information is calculated, the video playing delay corresponding to each video state time information is obtained, then the video playing delay corresponding to the first video test sequence is finally calculated according to the video playing time corresponding to each video state time information, wherein the method for calculating the video playing delay corresponding to the first video test sequence is customizable, and the customization may specifically be, but not limited to, calculating an average value or calculating a variance, and the like. For example, the playing time of the first video test sequence is 10 seconds, the time point of the video state transition from the first state to the second state is TS1, the time point of the video state transition from the second state to the first state is TS2, and the TS1 and the TS2 are separated by 5 seconds. The time points corresponding to the pulse signals corresponding to the video state time information TS1 and TS2 obtained from the audio signal are TR1 and TR2, respectively, and the difference between the pulse signals and the corresponding video state change time information is calculated as Δ T1-TR 1-TS1 and Δ T2-TR 2-TS2, so that the video playing time delay corresponding to the first video test sequence is ([ delta ] T1+ [ delta ] T2)/2.
According to the video time delay testing method, the computer equipment obtains video state change time information, wherein the video state change time information is determined by state change of a testing image corresponding to a first video testing sequence played by a second terminal, the computer equipment receives an audio signal, the audio signal is obtained by converting the audio signal through a photoelectric conversion device according to an optical signal corresponding to a playing interface of the first terminal, the first terminal is used for playing when video data corresponding to the first video testing sequence is received, and finally the computer equipment determines video playing time delay corresponding to the first video testing sequence according to the video state change time information and the audio signal. The photoelectric conversion device converts the optical signal corresponding to the first terminal playing interface into the audio signal, and the detected time point of the video image state change is accurate when the photoelectric conversion device plays the first video test sequence on the first terminal playing interface, so that the pulse time corresponding to the video image state change in the converted audio signal is also accurate, the error of finally calculating the video playing time delay is small, and the accuracy of the video playing time delay test is ensured. Furthermore, the video playing time delay of the first terminal and the second terminal is detected through the photoelectric conversion device, the detection is irrelevant to the equipment of the first terminal and the second terminal and the illumination environment, cross-platform testing can be achieved, manual intervention is not needed, and the working efficiency of video playing time delay testing is improved. The hardware equipment of the photoelectric conversion device is simple and easy to use, and the cost is low.
In an embodiment, the video data corresponding to the first video test sequence is video data sent by a third terminal, and the third terminal is configured to acquire an interface of the second terminal playing the first video test sequence in real time, obtain a second video test sequence corresponding to the first video test sequence, and send the video data corresponding to the second video test sequence to the first terminal in real time.
Specifically, the second terminal stores the first video test sequence in its own memory in advance, and if the computer device issues the control instruction to the second terminal, the second terminal receives the control instruction issued by the computer device, and can play the first video test sequence stored in advance on the playing interface according to the control instruction. Or the playing time of the first video test sequence playing is preset in the related configuration file of the first video test sequence in the second terminal, and when the playing time is reached, the first video test sequence can automatically play the first video test sequence.
And the image acquisition device of the third terminal covers the playing interface of the second terminal. When the second terminal plays the first video test sequence, the third terminal acquires images in real time through the image acquisition device so as to obtain a second video test sequence corresponding to the first video test sequence. The image capturing device may be, but is not limited to, a camera, such as a USB digital camera.
Further, the third terminal sends the collected video data corresponding to the second video test sequence to the first terminal in real time. The video data corresponding to the second video test sequence may be encoded video data, or may be unencoded video data, and so on. And finally, when the first terminal receives the video data corresponding to the second video test sequence, the first terminal plays the received video data corresponding to the second video test sequence on a playing interface of a related video client of the first terminal. And acquiring the first video test sequence played by the second terminal through the third terminal to obtain a corresponding second video test sequence, wherein the final video playing time delay comprises the time delay brought by the camera acquisition.
In one embodiment, the states of the test images corresponding to the first video test sequence include a first state and a second state, a brightness difference between the brightness of the image in the first state and the brightness of the image in the second state exceeds a preset threshold, and the states of the test images change periodically.
Specifically, the first video test sequence in the second terminal is a video test sequence with a state change, so that when playing a test image corresponding to the first video test sequence, the state of the test image corresponding to the first video test sequence is changed. The states of the test images corresponding to the first video test sequence include, but are not limited to, a first state and a second state, and a brightness difference between the image brightness of the first state and the image brightness of the second state exceeds a preset threshold. That is, the image brightness of the first state may be greater than the image brightness of the second state, or the image brightness of the first state may be less than the image brightness of the second state. For example, the first state and the second state are black and white states, respectively.
Further, the state of the test image corresponding to the first video test sequence changes periodically, where the periodic change refers to that the first state and the second state of the test image corresponding to the first video test sequence alternate regularly, and the presentation duration of the first state and the second state of the test image corresponding to the first video test sequence may be specifically set by a user, where the user may be, but is not limited to, that the first state and the second state present the same duration interval, or the duration interval of presentation of the first state is greater than the duration interval of presentation of the second state, or the duration interval of presentation of the second state is greater than the duration interval of presentation of the first state, and so on.
In an embodiment, the presentation durations of the first state and the second state of the test image corresponding to the first video test sequence are the same time interval, for example, the presentation durations of the first state and the second state are both 5 seconds, the playing duration of the test image corresponding to the first video test sequence is 5 minutes, the playing duration of the test image is 5 minutes, and the test image is converted into units of seconds, that is, the playing duration of the test image is 300 seconds, then the state change of the test image corresponding to the first video test sequence is a periodic state change every 5 seconds, 60 times of the first state and 60 times of the second state occur within 300 seconds of the playing duration of the test image, and the first state and the second state of the test image are periodically changed every 5 seconds.
In one embodiment, as shown in fig. 4, the video state change time information includes at least one first time point, where the first time point is a time corresponding to a time when a state change occurs in a test image corresponding to a first video test sequence, and determining a video playback delay corresponding to the first video test sequence according to the video state change time information and an audio signal includes:
Specifically, when the video state change time information includes at least one first time point, where the first time point is a time corresponding to a time at which a test image corresponding to the first video test sequence changes state, and if the state of the test image corresponding to the first video test sequence includes a first state and a second state, the first time point is a time point at which the test image corresponding to the first video test sequence jumps from the first state to the second state or a time point at which the test image jumps from the second state to the first state.
If the video state change time information includes a plurality of first time points, the first time points are all time points at which state changes occur in the video state change time information, that is, all time points corresponding to the time at which the state changes occur in the test image corresponding to the first video test sequence. If the first time point a is a time point at which the test image corresponding to the first video test sequence jumps from the first state to the second state, the first time point b is a time point at which the test image corresponding to the first video test sequence jumps from the second state to the first state, the first time point c is a time point at which the test image corresponding to the first video test sequence jumps from the first state to the second state, and the first time point d is a time point at which the test image corresponding to the first video test sequence jumps from the second state to the first state. The first time point a, the first time point b, the first time point c and the first time point d constitute video state change time information.
Further, a target first time point is selected from all the first time points in the video state change time information, the rule for selecting the target first time point can be customized, the customized selection of the target first time point can be, but is not limited to, selecting the time point at which the test image jumps from the first state to the second state from a plurality of first time points as the target first time point, or selecting a time point at which the test image jumps from the second state to the first state from the plurality of first time points as a target first time point, or the time points of two adjacent state changes in the plurality of first time points are both the target first time point, if the target first time point a is a time point at which the test image transits from the first state to the second state, and the target first time point b is a time point at which the test image transits from the second state to the first state. And finally, forming a target time point set by the target first time points selected from the video state change time information.
And 406, calculating to obtain the video playing time delay according to each target first time point and the corresponding second time point.
Specifically, after the target time point set is obtained, a pulse signal corresponding to each target first time point is obtained from the audio signal according to each target first time point in the target time point set, and then a second time point corresponding to each target first time point is obtained according to the time corresponding to the pulse signal. As shown in fig. 3, the two waveforms in fig. 3 represent a waveform corresponding to the video state change time information of the second terminal and a waveform corresponding to the audio signal, the target first point in time TS1 in figure 3 is the point in time at which the test image corresponding to the first video test sequence transitions from the first state to the second state, and the target first point in time TS2 is the point in time at which the test image corresponding to the first video test sequence transitions from the second state to the first state, and pulse signals corresponding to TS1 and TS2 are obtained from the audio signal as a pulse signal a and a pulse signal b, the time TR1 corresponding to the pulse signal a corresponds to the target first time point TS1, the time TR2 corresponding to the pulse signal b corresponds to the target first time point TS2, namely, TR1 and TR2 are second time points corresponding to the target first time point TS1 and the target first time point TS2, respectively.
And further, calculating to obtain the video playing time delay in the whole video playing process according to each target first time point and the corresponding second time point. The specific calculation manner according to each target first time point and the corresponding second time may be, but is not limited to, calculating an average value or calculating a variance, and the like, and finally calculating the video playing delay generated in the whole video playing process.
In one embodiment, the video latency testing method further comprises: and sending a video test sequence playing instruction to the second terminal, acquiring initial playing time corresponding to the first video test sequence played by the second terminal according to the video test sequence playing instruction, and modifying the current time of the local terminal according to the initial playing time.
Specifically, in order to ensure the accuracy of the finally calculated video playing delay, the time of the second terminal and the time of the computer device need to be kept consistent at the beginning, so that when a video test sequence playing instruction is sent to the second terminal, the starting playing time corresponding to the playing of the first video test sequence by the second terminal according to the video test sequence playing instruction is obtained, and then the current time of the local end of the computer device is modified according to the obtained starting playing time. The time mode of modifying the local end of the computer device may be, but is not limited to, modifying the current time directly on a relevant time modification interface of the local end or modifying the current time through a relevant physical control of the local end, and the like.
If the second terminal plays the pre-installed first video test sequence according to the video test sequence playing instruction issued by the computer device, because the first video test sequence is actually a video picture with state change, when the first video test sequence is played, the initial playing time for playing the first video test sequence is 18:00, and the current time of the local end of the computer device is 17:58, the current time 17:58 of the local end of the computer device is modified to 18:00 through a relevant time modification interface of the local end of the computer device, or the current time 17:58 of the local end of the computer device is modified to 18:00 through a relevant physical control of the local end of the computer device. Because the computer equipment and the second terminal keep time consistency, the accuracy of the video playing time delay corresponding to the first video test sequence determined according to the audio signal of the video state change time information of the second terminal can be ensured.
In a specific embodiment, as shown in fig. 3, fig. 3 shows a schematic diagram of a video delay testing method in an embodiment, a video playing process includes camera acquisition, preprocessing, encoding, network transmission, decoding, post-processing and screen rendering playing, if a first video test sequence is played by a second terminal according to a control instruction sent by a computer device after the second terminal receives the control instruction, since the first video test sequence is a video image with a state change, the state change of a playing interface of the second terminal is cross-hopped between a first state and a second state when a test image corresponding to the first video test sequence is played. The computer device may determine video state change time information according to a state change of a test image corresponding to a first video test sequence in a second terminal, and may specifically embody a video state change of the first video test sequence obtained on the second terminal by using a waveform graph, for example, the video state change time information TS1 indicates a time point at which a video state of the first video test sequence jumps from a first state to a second state, and the video state change time information TS2 indicates a time point at which the video state of the first video test sequence jumps from the second state to the first state.
The audio signal received by the computer device can be embodied by a waveform curve graph specifically, because the audio signal received by the computer device is obtained by converting the optical signal corresponding to the real-time acquisition first terminal playing interface by the photoelectric conversion device, the waveform curve graph corresponding to the audio signal is the same as the waveform curve graph corresponding to the video state change time information, and further, the pulse signal corresponding to the video state change time information can be acquired from the audio signal by a related calculation mode. Wherein the correlation calculation method includes but is not limited to fourier transform and sliding window, etc. For example, the video state change time information TS1 refers to a time point at which the video state of the first video test sequence jumps from the first state to the second state, the video state change time information TS2 refers to a time point at which the video state of the first video test sequence jumps from the second state to the first state, and the pulse signal TR1 corresponds to the video state change time information TS1, which also refers to a time point at which the video state of the first video test sequence jumps from the first state to the second state. Similarly, the pulse signal TR2 is corresponding to the video state change time information TS2, and indicates a time point at which the video state of the first video test sequence transits from the second state to the first state.
And finally, calculating to obtain the video playing time delay corresponding to the first video test sequence according to the video state change information and the corresponding pulse signal.
In a specific embodiment, a video latency testing method is provided, which specifically includes the following steps:
step 502, the computer device sends a video test sequence playing instruction to the second terminal, and obtains an initial playing time corresponding to the second terminal playing the first video test sequence according to the video test sequence playing instruction.
And step 504, the computer device modifies the current time of the local terminal through a time modification interface related to the local terminal according to the obtained starting playing time, or modifies the current time of the local terminal through a physical control related to the local terminal of the computer device, so that the time of the second terminal is consistent with that of the computer device.
Step 506, the second terminal plays and receives the first video test sequence on a playing interface of the relevant video client according to a video test sequence playing instruction issued by the computer device, and determines video state change time information according to the state change of the test image corresponding to the first video test sequence, wherein the state of the test image corresponding to the first video test sequence includes a first state and a second state, the brightness difference between the image brightness of the first state and the image brightness of the second state exceeds a preset threshold, and the state of the test image changes periodically.
And step 508, covering the playing interface of the second terminal by the image acquisition device of the third terminal and acquiring the interface of the second terminal for playing the first video test sequence in real time, so as to obtain a second video test sequence corresponding to the first video test sequence, and then sending the video data corresponding to the second video test sequence to the first terminal in real time.
Step 510, the first terminal receives video data corresponding to the second video test sequence and plays the video data on a related playing interface, and a photoresistor in a photoelectric conversion device covering the playing interface of the first terminal collects an optical signal corresponding to the playing interface of the first terminal in real time, converts the optical signal into an audio signal, and finally transmits the converted audio signal to a sound card of the computer device through an audio line in the photoelectric conversion device.
And step 512, after receiving the audio signal transmitted by the photoelectric conversion device, the computer device determines the video playing time delay corresponding to the first video test sequence according to the video state change time information and the audio signal.
Step 512a, if the video state change time information includes at least one first time point, where the first time point is a time corresponding to a time at which a test image corresponding to the first video test sequence has a state change, acquiring a target time point set from the video state change time information, where the target time point set includes at least one target first time point.
And step 512b, acquiring the pulse signals corresponding to the target first time points in the target time point set from the audio signals, and obtaining second time points corresponding to the target first time points according to the time corresponding to the pulse signals.
And 512c, calculating to obtain the video playing time delay according to each target first time point and the corresponding second time point.
It should be understood that, although the steps in the above-described flowcharts are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in the above-described flowcharts may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or the stages is not necessarily sequential, but may be performed alternately or alternatingly with other steps or at least a portion of the sub-steps or stages of other steps.
As shown in fig. 5, in one embodiment, there is provided a video latency test system 600, comprising: the computer device 606 is connected to the first terminal 602 and the second terminal 604, the photoelectric conversion device 608 covers the playing interface of the first terminal 602, the photoelectric conversion device 608 includes a photosensitive resistor 608a and an audio line 608b connected to the photosensitive resistor, and the photoelectric conversion device 608 is connected to the computer device 606 through the audio line 608 b.
In one embodiment, the computer device is connected to the first terminal and the second terminal respectively through a universal serial bus or a wireless network.
Specifically, the video latency test system 600 includes a first terminal 602, a second terminal 604, a computer device 606, and a photo-conversion device 608, the photo-conversion device 608 including a photo-resistor 608a and an audio line 608b connected to the photo-resistor 608 a. The second terminal 604 comprises a processor and a memory, the computer device 606 comprises a processor and a sound card, the first terminal 602 and the second terminal 604 are connected with the computer device 606 through a universal serial bus or a wireless network, respectively, and the processor in the computer device 606 can issue a video test sequence playing instruction to the second terminal 604 through a Universal Serial Bus (USB) or a wireless network. The second terminal 604 receives the video test sequence playing instruction, and plays the pre-stored first video test sequence on the playing interface of the second terminal 604 according to the video test sequence playing instruction, or can play the first video test sequence by itself through the first video test sequence configuration file stored in the memory of the second terminal 604. The computer equipment can acquire video state change time information determined by state change of a test image corresponding to a first video test sequence played by a second terminal through a Universal Serial Bus (USB) line or a wireless network. It should be noted that the first video test sequence in the second terminal 604 may or may not be played, and if the first video test sequence in the second terminal 604 is not played, the video state change time information may be obtained through the related information in the first video test sequence configuration file in the memory of the second terminal 604.
Further, the second terminal 604 may also directly transmit the video data corresponding to the first video test sequence to the first terminal 602. After receiving the video data corresponding to the first video test sequence, the first terminal 602 plays the video data corresponding to the first video test sequence on the play interface. The photoresistor 608a of the optoelectronic conversion device 608 covering the playing interface of the first terminal 602 collects the optical signal corresponding to the playing interface of the first terminal 602 in real time, and the photoresistor 608a converts the collected optical signal into an audio signal. The photoelectric conversion device 608 finally transmits the converted audio signal to the sound card of the computer device 606 through the audio line 608b connected to the photoresistor 608 a.
Finally, after receiving the audio signal transmitted by the photoelectric conversion device 608, the computer device 606 determines a video playing delay corresponding to the first video test sequence according to the previously acquired video state change time information and the received audio signal.
In one embodiment, as shown in fig. 6, the video latency testing system 600 further includes a third terminal 610, where the third terminal 610 includes an image capturing device, and the image capturing device is overlaid on the playing interface of the second terminal.
Specifically, if the second terminal 604 does not directly send the video data corresponding to the first video test sequence to the first terminal 602, the video delay test system 600 further includes a third terminal 610, where the third terminal 610 includes an image capture device, and the image capture device covers a playing interface of the second terminal 604. The playing interface of the second terminal 604 is playing the test image corresponding to the first video test sequence, and the third terminal 610 acquires the interface of the second terminal 604 playing the first video test sequence through the image acquisition device, so as to obtain the second video test sequence corresponding to the first video test sequence. The third terminal 610 then sends the video data corresponding to the second video test sequence to the first terminal 602 in real time. The first terminal 602 receives the video data corresponding to the second video test sequence and then plays the video data on the corresponding playing interface, and the photoresistor 608a in the photoelectric conversion device 608 covering the playing interface of the first terminal 602 collects the optical signal corresponding to the playing interface of the first terminal 602 in real time, and the photoresistor 608a converts the collected optical signal into an audio signal. The photoelectric conversion device 608 finally transmits the converted audio signal to the sound card of the computer device 606 through the audio line 608b connected to the photoresistor 608 a.
Finally, after receiving the audio signal transmitted by the photoelectric conversion device 608, the computer device 606 determines a video playing delay corresponding to the first video test sequence according to the previously acquired video state change time information and the received audio signal.
In one embodiment, as shown in fig. 7, there is provided a video latency testing apparatus 700, comprising:
an obtaining module 702 is configured to obtain video state change time information, where the video state change time information is determined by a state change of a test image corresponding to the first video test sequence.
The receiving module 704 is configured to receive an audio signal, where the audio signal is obtained by converting an optical signal, which corresponds to a playing interface of a first terminal, acquired in real time by a photoelectric conversion device, and the first terminal is configured to play the audio signal when receiving video data corresponding to a first video test sequence.
The generating module 706 is configured to determine a video playing delay corresponding to the first video test sequence according to the video state change time information and the audio signal.
In one embodiment, as shown in fig. 8, the video state change time information includes at least one first time point, where the first time point is a time corresponding to a time when a state change occurs in a test image corresponding to the first video test sequence, and the generating module 706 includes:
the target time point set generating unit 706a is configured to obtain a target time point set from the video state change time information, where the target time point set includes at least one target first time point.
The pulse signal acquiring unit 706b is configured to acquire a pulse signal corresponding to each target first time point in the target time point set from the audio signal, and obtain a second time point corresponding to each target first time point according to time corresponding to the pulse signal.
And the video playing time delay calculating unit 706c is configured to calculate a video playing time delay according to each target first time point and the corresponding second time point.
In an embodiment, the video data corresponding to the first video test sequence is video data sent by a third terminal, and the third terminal is configured to acquire an interface of the second terminal playing the first video test sequence in real time, obtain a second video test sequence corresponding to the first video test sequence, and send the video data corresponding to the second video test sequence to the first terminal in real time.
In one embodiment, the states of the test images corresponding to the first video test sequence include a first state and a second state, a brightness difference between the brightness of the image in the first state and the brightness of the image in the second state exceeds a preset threshold, and the states of the test images change periodically.
In an embodiment, the video delay testing apparatus 700 is further configured to send a video test sequence playing instruction to the second terminal, obtain an initial playing time corresponding to the second terminal playing the first video test sequence according to the video test sequence playing instruction, and modify the current time of the local terminal according to the initial playing time.
FIG. 9 is a diagram illustrating an internal structure of a computer device in one embodiment. The computer device may specifically be the computer device 140 in fig. 1. As shown in fig. 9, the computer apparatus includes a processor, a memory, a network interface, an input device, and a display screen connected through a system bus. Wherein the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system and may also store a computer program, which when executed by the processor, causes the processor to implement the video latency testing method. The internal memory may also have a computer program stored therein, which when executed by the processor, causes the processor to perform the video latency testing method. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the architecture shown in fig. 9 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, the video latency testing apparatus provided in the present application may be implemented in the form of a computer program, and the computer program may be run on a computer device as shown in fig. 9. The memory of the computer device may store various program modules constituting the video delay testing apparatus, such as the obtaining module, the receiving module and the generating module shown in fig. 7. The computer program formed by the program modules enables the processor to execute the steps of the video delay testing method of the embodiments of the present application described in the present specification.
For example, the computer device shown in fig. 9 may perform the acquiring of the video state change time information by an acquiring module in the video time delay testing apparatus shown in fig. 7, where the video state change time information is determined by the state change of the test image corresponding to the first video test sequence. The computer equipment can receive audio signals through the receiving module, the audio signals are obtained by converting the optical signal corresponding to the playing interface of the first terminal collected in real time through the photoelectric conversion device, and the first terminal is used for playing when receiving video data corresponding to the first video test sequence. The computer equipment can determine the video playing time delay corresponding to the first video test sequence according to the video state change time information and the audio signal through the generation module.
In one embodiment, a computer device is presented, comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of: acquiring video state change time information, wherein the video state change time information is determined by the state change of a test image corresponding to a first video test sequence; receiving an audio signal, wherein the audio signal is obtained by converting an optical signal corresponding to a playing interface of a first terminal acquired in real time by a photoelectric conversion device, and the first terminal is used for playing when receiving video data corresponding to a first video test sequence; and determining the video playing time delay corresponding to the first video test sequence according to the video state change time information and the audio signal.
In an embodiment, the video data corresponding to the first video test sequence is video data sent by a third terminal, and the third terminal is configured to acquire an interface of the second terminal playing the first video test sequence in real time, obtain a second video test sequence corresponding to the first video test sequence, and send the video data corresponding to the second video test sequence to the first terminal in real time.
In one embodiment, the states of the test images corresponding to the first video test sequence include a first state and a second state, a brightness difference between the brightness of the image in the first state and the brightness of the image in the second state exceeds a preset threshold, and the states of the test images change periodically.
In one embodiment, the video state change time information includes at least one first time point, where the first time point is a time corresponding to a time when a state change occurs in a test image corresponding to the first video test sequence; determining a video playing time delay corresponding to a first video test sequence according to the video state change time information and the audio signal, wherein the method comprises the following steps: acquiring a target time point set from video state change time information, wherein the target time point set comprises at least one target first time point; acquiring a pulse signal corresponding to each target first time point in a target time point set from the audio signal, and acquiring a second time point corresponding to each target first time point according to the time corresponding to the pulse signal; and calculating to obtain the video playing time delay according to each target first time point and the corresponding second time point.
In one embodiment, the computer program further causes the processor to perform the steps of: sending a video test sequence playing instruction to a second terminal, and acquiring initial playing time corresponding to the first video test sequence played by the second terminal according to the video test sequence playing instruction; and modifying the current time of the local terminal according to the initial playing time.
In one embodiment, a computer-readable storage medium is proposed, in which a computer program is stored which, when executed by a processor, causes the processor to carry out the steps of: acquiring video state change time information, wherein the video state change time information is determined by the state change of a test image corresponding to a first video test sequence; receiving an audio signal, wherein the audio signal is obtained by converting an optical signal corresponding to a playing interface of a first terminal acquired in real time by a photoelectric conversion device, and the first terminal is used for playing when receiving video data corresponding to a first video test sequence; and determining the video playing time delay corresponding to the first video test sequence according to the video state change time information and the audio signal.
In an embodiment, the video data corresponding to the first video test sequence is video data sent by a third terminal, and the third terminal is configured to acquire an interface of the second terminal playing the first video test sequence in real time, obtain a second video test sequence corresponding to the first video test sequence, and send the video data corresponding to the second video test sequence to the first terminal in real time.
In one embodiment, the states of the test images corresponding to the first video test sequence include a first state and a second state, a brightness difference between the brightness of the image in the first state and the brightness of the image in the second state exceeds a preset threshold, and the states of the test images change periodically.
In one embodiment, the video state change time information includes at least one first time point, where the first time point is a time corresponding to a time when a state change occurs in a test image corresponding to the first video test sequence; determining a video playing time delay corresponding to a first video test sequence according to the video state change time information and the audio signal, wherein the method comprises the following steps: acquiring a target time point set from video state change time information, wherein the target time point set comprises at least one target first time point; acquiring a pulse signal corresponding to each target first time point in a target time point set from the audio signal, and acquiring a second time point corresponding to each target first time point according to the time corresponding to the pulse signal; and calculating to obtain the video playing time delay according to each target first time point and the corresponding second time point.
In one embodiment, the computer program further causes the processor to perform the steps of: sending a video test sequence playing instruction to a second terminal, and acquiring initial playing time corresponding to the first video test sequence played by the second terminal according to the video test sequence playing instruction; and modifying the current time of the local terminal according to the initial playing time.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a non-volatile computer-readable storage medium, and can include the processes of the embodiments of the methods described above when the program is executed. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (12)
1. A video time delay test method comprises the following steps:
acquiring video state change time information, wherein the video state change time information is determined by the state change of a test image corresponding to a first video test sequence;
receiving an audio signal, wherein the audio signal is obtained by converting an optical signal corresponding to a playing interface of a first terminal acquired in real time by a photoelectric conversion device, and the first terminal is used for playing when receiving video data corresponding to the first video test sequence;
determining a video playing time delay corresponding to the first video test sequence according to the video state change time information and the audio signal, including: and acquiring a pulse signal corresponding to the video state change time information from the audio signal, and calculating to obtain the video playing time delay corresponding to the first video test sequence according to the video state change time information and the time corresponding to the pulse signal.
2. The method according to claim 1, wherein the video data corresponding to the first video test sequence is video data sent by a third terminal, and the third terminal is configured to acquire an interface of a second terminal playing the first video test sequence in real time, obtain a second video test sequence corresponding to the first video test sequence, and send the video data corresponding to the second video test sequence to the first terminal in real time.
3. The method according to claim 1, wherein the states of the test images corresponding to the first video test sequence include a first state and a second state, a brightness difference between the brightness of the image in the first state and the brightness of the image in the second state exceeds a predetermined threshold, and the states of the test images change periodically.
4. The method according to claim 1, wherein the video state change time information includes at least one first time point, and the first time point is a time corresponding to a time when a state change occurs in a test image corresponding to a first video test sequence;
the determining the video playing time delay corresponding to the first video test sequence according to the video state change time information and the audio signal includes:
acquiring a target time point set from the video state change time information, wherein the target time point set comprises at least one target first time point;
acquiring a pulse signal corresponding to each target first time point in the target time point set from the audio signal, and obtaining a second time point corresponding to each target first time point according to the time corresponding to the pulse signal;
and calculating to obtain the video playing time delay according to the target first time points and the corresponding second time points.
5. The method of claim 2, further comprising:
the method comprises the steps that computer equipment sends a video test sequence playing instruction to a second terminal, and the initial playing time corresponding to the first video test sequence played by the second terminal according to the video test sequence playing instruction is obtained;
and modifying the current time of the computer equipment according to the starting playing time.
6. A video latency test system for performing the video latency test method of any one of claims 1 to 5, the system comprising:
the computer equipment is respectively connected with a first terminal and a second terminal, the first terminal is used for playing when receiving video data corresponding to a first video test sequence, and the second terminal comprises the first video test sequence;
the photoelectric conversion device covers a playing interface of the first terminal, and comprises a photosensitive resistor and an audio line connected with the photosensitive resistor;
the photoelectric conversion device is connected with the computer equipment through the audio cable.
7. The system of claim 6, wherein the computer device is connected to the first terminal and the second terminal via a universal serial bus or a wireless network.
8. The system of claim 6, further comprising:
and the third terminal comprises an image acquisition device, the image acquisition device covers the playing interface of the second terminal, and is used for acquiring the playing interface of the second terminal through the image acquisition device and acquiring video data corresponding to the first video test sequence.
9. A video latency testing apparatus, the apparatus comprising:
the acquisition module is used for acquiring video state change time information, wherein the video state change time information is determined by the state change of a test image corresponding to a first video test sequence;
the receiving module is used for receiving an audio signal, the audio signal is obtained by converting an optical signal corresponding to a playing interface of a first terminal acquired by a photoelectric conversion device in real time, and the first terminal is used for playing when receiving video data corresponding to the first video test sequence;
a generating module, configured to determine a video playing delay corresponding to the first video test sequence according to the video state change time information and the audio signal, where the generating module includes: and acquiring a pulse signal corresponding to the video state change time information from the audio signal, and calculating to obtain the video playing time delay corresponding to the first video test sequence according to the video state change time information and the time corresponding to the pulse signal.
10. The apparatus according to claim 9, wherein the video state change time information includes at least one first time point, and the first time point corresponds to a time when a state change occurs in a test image corresponding to a first video test sequence, and the generating module includes:
a target time point set generating unit, configured to obtain a target time point set from the video state change time information, where the target time point set includes at least one target first time point;
the pulse signal acquisition unit is used for acquiring pulse signals corresponding to all target first time points in the target time point set from the audio signals and obtaining second time points corresponding to all the target first time points according to the time corresponding to the pulse signals;
and the video playing time delay calculating unit is used for calculating the video playing time delay according to the target first time points and the corresponding second time points.
11. A computer-readable storage medium, storing a computer program which, when executed by a processor, causes the processor to carry out the steps of the method according to any one of claims 1 to 5.
12. A computer device comprising a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the steps of the method according to any one of claims 1 to 5.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313089A (en) * | 2012-03-16 | 2013-09-18 | 三洋科技中心(深圳)有限公司 | Lip synchronization detection device and method |
| CN103414598A (en) * | 2013-07-09 | 2013-11-27 | 中国航空工业集团公司沈阳飞机设计研究所 | Unmanned aerial vehicle system information transmission time delay test device and method thereof |
| CN103428047A (en) * | 2012-05-25 | 2013-12-04 | 腾讯科技（深圳）有限公司 | Test method, device and system for service transmission delay |
| CN103813161A (en) * | 2012-11-12 | 2014-05-21 | 腾讯科技（深圳）有限公司 | Delayed testing method and device |
| CN104349163A (en) * | 2014-11-26 | 2015-02-11 | 电子科技大学 | Measurement display device and measurement system for end-to-end video transmission delay |
-
2018
- 2018-05-14 CN CN201810457681.2A patent/CN110493592B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313089A (en) * | 2012-03-16 | 2013-09-18 | 三洋科技中心(深圳)有限公司 | Lip synchronization detection device and method |
| CN103428047A (en) * | 2012-05-25 | 2013-12-04 | 腾讯科技（深圳）有限公司 | Test method, device and system for service transmission delay |
| CN103813161A (en) * | 2012-11-12 | 2014-05-21 | 腾讯科技（深圳）有限公司 | Delayed testing method and device |
| CN103414598A (en) * | 2013-07-09 | 2013-11-27 | 中国航空工业集团公司沈阳飞机设计研究所 | Unmanned aerial vehicle system information transmission time delay test device and method thereof |
| CN104349163A (en) * | 2014-11-26 | 2015-02-11 | 电子科技大学 | Measurement display device and measurement system for end-to-end video transmission delay |
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