CN113747256A - Abnormal data flow simulation method and device, electronic equipment and storage medium - Google Patents
Abnormal data flow simulation method and device, electronic equipment and storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8547—Content authoring involving timestamps for synchronizing content
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
- H04N21/23106—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion involving caching operations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440281—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the temporal resolution, e.g. by frame skipping
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Abstract
The embodiment of the invention provides an abnormal data flow simulation method, an abnormal data flow simulation device, electronic equipment and a storage medium, wherein the method comprises the following steps: acquiring a scene to be simulated and a multimedia file used by the scene to be simulated; when the scene to be simulated comprises a disordered scene, adjusting the sequence of at least two frames in all frames of the multimedia file to obtain the disordered multimedia file, and sending the disordered multimedia file to the server. By the embodiment of the invention, the abnormal data flow of the disordered multimedia file can be simulated, so that the service end of an internet provider can optimize the provided service in advance based on the simulated abnormal data flow.
Description
Technical Field
The present invention relates to the field of data processing technologies, and in particular, to an abnormal data flow simulation method and apparatus, an electronic device, and a storage medium.
Background
With the development of internet technology, people can do anything they want through the internet, for example, watch videos through the internet, read texts through the internet, listen to audios through the internet, post personal statuses through the internet, and the like.
However, as data on the internet increases, the large amount of data also becomes a factor affecting the quality of internet service, and in order to provide better service for consumers, internet providers generally need to optimize the internet service provided by themselves. For example, CDN (Content Delivery Network) is optimized. Typically, internet services are optimized based on the actual network conditions of the internet (e.g., network delay, network jitter, packet loss rate).
However, the optimization method cannot optimize the internet service in advance, and the internet provider cannot know the service quality of the internet service in advance, so that the problem that the service experience of the consumer is not high exists.
Disclosure of Invention
An object of the embodiments of the present invention is to provide an abnormal data flow simulation method, an abnormal data flow simulation device, an electronic device, and a storage medium, so as to simulate an abnormal data flow in a network, thereby enabling an internet service provider to optimize an internet service in advance based on the simulated abnormal data flow. The specific technical scheme is as follows:
in a first aspect, an embodiment of the present invention provides an abnormal data flow simulation method, where the method includes:
acquiring a scene to be simulated and a multimedia file used by the scene to be simulated;
when the scene to be simulated comprises a disordered scene, adjusting the sequence of at least two frames in all frames of the multimedia file to obtain the disordered multimedia file, and sending the disordered multimedia file to the server.
Optionally, adjusting the order of at least two frames in all frames of the multimedia file to obtain the multimedia file after disorder processing, including:
randomly adjusting the sequence of at least two frames in all frames of the multimedia file to obtain the multimedia file after disorder processing; or
And adjusting the corresponding relation between at least two frames in all the frames of the multimedia file and the corresponding time stamp based on the time stamp of each frame of the multimedia file to obtain the multimedia file after disorder processing.
Optionally, the multimedia file is a video file, and the timestamp of each video frame of the video file includes: decoding the time stamp or displaying the time stamp;
based on the timestamp of each frame of the multimedia file, adjusting the corresponding relationship between at least two frames of all frames of the multimedia file and the corresponding timestamps to obtain the multimedia file after disorder processing, comprising:
based on the decoding time stamps of all video frames of the video file, adjusting the corresponding relation between at least two video frames in all video frames of the multimedia file and the corresponding decoding time stamps to obtain the multimedia file after disorder processing; or
And adjusting the corresponding relation between at least two video frames in all the video frames of the multimedia file and the corresponding display time stamps based on the display time stamps of all the video frames of the video file to obtain the multimedia file after disorder processing.
Optionally, the scene to be simulated further includes: a frame loss scene;
after all frames of the multimedia file corresponding to the identification information are acquired, the abnormal data flow simulation method further comprises the following steps:
when the scene to be simulated comprises a frame loss scene, discarding at least one frame of all frames of the multimedia file according to a frame loss rate corresponding to the frame loss scene to obtain the multimedia file after frame loss processing;
and sending the multimedia file after frame loss processing to a server side.
Optionally, the scene to be simulated further includes: a frame loss scene;
adjusting the sequence of at least two frames in all frames of the multimedia file to obtain a multimedia file after disorder processing, and sending the multimedia file after disorder processing to a server, wherein the method comprises the following steps:
adjusting the sequence of at least two frames in all frames of the multimedia file to obtain the multimedia file after disorder processing;
discarding at least one frame of all frames of the multimedia file after the disorder processing according to a frame loss rate corresponding to a frame loss scene to obtain the multimedia file after the disorder and frame loss processing;
and sending the multimedia file subjected to the disordering and frame dropping processing to a server.
Optionally, the scene to be simulated further includes: a frame loss scene;
before adjusting the order of at least two frames in all frames of the multimedia file to obtain the multimedia file after disorder processing, the abnormal data flow simulation method further comprises the following steps:
discarding at least one frame of all frames of the multimedia file according to a frame loss rate corresponding to a frame loss scene to obtain a multimedia file after frame loss processing;
adjusting the sequence of at least two frames in all frames of the multimedia file to obtain a multimedia file after disorder processing, and sending the multimedia file after disorder processing to a server, wherein the method comprises the following steps:
adjusting the sequence of at least two frames in all frames of the multimedia file after frame loss processing to obtain the multimedia file after disorder and frame loss processing;
and sending the multimedia file subjected to the disordering and frame dropping processing to a server.
Optionally, the scene to be simulated further includes: a stuck scene;
after acquiring a scene to be simulated and a multimedia file used by the scene to be simulated, the abnormal data flow simulation method further includes:
and when the scene to be simulated comprises a pause scene, at least one frame in all frames of the multimedia file is sent to the server side according to the pause time delay corresponding to the pause scene.
Optionally, the scene to be simulated further includes: a stuck scene;
adjusting the sequence of at least two frames in all frames of the multimedia file to obtain a multimedia file after disorder processing, and sending the multimedia file after disorder processing to a server, wherein the method comprises the following steps:
adjusting the sequence of at least two frames in all frames of the multimedia file to obtain the multimedia file after disorder processing;
and sending at least one frame in the multimedia file after the disorder processing to a server side according to the pause time delay corresponding to the pause scene.
Optionally, the scene to be simulated further includes: a stuck scene;
the method for sending the multimedia file after the disordering and frame dropping processing to the server side comprises the following steps:
and at least one frame in the multimedia file after the disorder and frame loss processing is sent to a server according to the pause time delay corresponding to the pause scene.
In a second aspect, an embodiment of the present invention further provides an abnormal data flow simulation apparatus, where the apparatus includes:
the system comprises an acquisition module, a simulation module and a display module, wherein the acquisition module is used for acquiring a scene to be simulated and a multimedia file used by the scene to be simulated;
and the disorder processing module is used for adjusting the sequence of at least two frames in all the frames of the multimedia file to obtain the multimedia file after disorder processing when the scene to be simulated comprises a disorder scene, and sending the multimedia file after disorder processing to the server.
Optionally, the out-of-order processing module is specifically configured to:
randomly adjusting the sequence of at least two frames in all frames of the multimedia file to obtain the multimedia file after disorder processing; or
And adjusting the corresponding relation between at least two frames in all the frames of the multimedia file and the corresponding time stamp based on the time stamp of each frame of the multimedia file to obtain the multimedia file after disorder processing.
Optionally, the multimedia file is a video file, and the timestamp of each video frame of the video file includes: decoding the time stamp or displaying the time stamp;
optionally, the out-of-order processing module is specifically configured to:
based on the decoding time stamps of all video frames of the video file, adjusting the corresponding relation between at least two video frames in all video frames of the multimedia file and the corresponding decoding time stamps to obtain the multimedia file after disorder processing; or
And adjusting the corresponding relation between at least two video frames in all the video frames of the multimedia file and the corresponding display time stamps based on the display time stamps of all the video frames of the video file to obtain the multimedia file after disorder processing.
Optionally, the scene to be simulated further includes: a frame loss scene;
the abnormal data flow simulation device further comprises:
the frame loss processing module is used for discarding at least one frame of all frames of the multimedia file according to a frame loss rate corresponding to a frame loss scene when the scene to be simulated comprises the frame loss scene to obtain the multimedia file after frame loss processing;
and sending the multimedia file after frame loss processing to a server side.
Optionally, the scene to be simulated further includes: a frame loss scene;
an out-of-order processing module comprising:
the first disorder processing submodule is used for adjusting the sequence of at least two frames in all the frames of the multimedia file to obtain a disorder processed multimedia file;
the frame loss processing submodule is used for discarding at least one frame in all frames of the multimedia file after the disorder processing according to the frame loss rate corresponding to the frame loss scene to obtain the multimedia file after the disorder and frame loss processing;
and the sending submodule is used for sending the multimedia file subjected to the disorder and frame loss processing to the server side.
Optionally, the scene to be simulated further includes: a stuck scene; a sending submodule, specifically configured to:
and at least one frame in the multimedia file after the disorder and frame loss processing is sent to a server according to the pause time delay corresponding to the pause scene.
Optionally, the scene to be simulated further includes: a frame loss scene;
the abnormal data flow simulation device further comprises:
the frame loss processing module is used for discarding at least one frame in all frames of the multimedia file according to a frame loss rate corresponding to a frame loss scene to obtain the multimedia file after frame loss processing;
the out-of-order processing module is specifically configured to:
adjusting the sequence of at least two frames in all frames of the multimedia file after frame loss processing to obtain the multimedia file after disorder and frame loss processing;
and sending the multimedia file subjected to the disordering and frame dropping processing to a server.
Optionally, the scene to be simulated further includes: a stuck scene; the out-of-order processing module is specifically configured to:
and at least one frame in the multimedia file after the disorder and frame loss processing is sent to a server according to the pause time delay corresponding to the pause scene.
Optionally, the scene to be simulated further includes: a stuck scene; the abnormal data flow simulation device further comprises:
and the pause processing module is used for sending at least one frame of all frames of the multimedia file to the server side according to the pause time delay corresponding to the pause scene when the scene to be simulated comprises the pause scene.
Optionally, the scene to be simulated further includes: a stuck scene;
and an out-of-order processing module. The method comprises the following steps:
the second disorder processing submodule is used for adjusting the sequence of at least two frames in all the frames of the multimedia file to obtain a disorder processed multimedia file;
and the pause processing submodule is used for transmitting at least one frame in the multimedia file after the disorder processing to the server side according to the pause time delay corresponding to the pause scene.
In a third aspect, an embodiment of the present invention further provides an electronic device, including a processor and a machine-readable storage medium, where the machine-readable storage medium stores machine-executable instructions capable of being executed by the processor, and the processor is caused by the machine-executable instructions to: the steps of the abnormal data flow simulation method provided by the first aspect are implemented.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the abnormal data flow simulation method provided in the first aspect are implemented.
In a fifth aspect, an embodiment of the present invention further provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the steps of the abnormal data flow simulation method provided in the first aspect.
In a sixth aspect, an embodiment of the present invention further provides a computer program, which when running on a computer, causes the computer to execute the steps of the abnormal data flow simulation method provided in the first aspect.
According to the abnormal data flow simulation method, the abnormal data flow simulation device, the electronic equipment and the storage medium, when abnormal data flow is simulated, a scene to be simulated and a multimedia file used by the scene to be simulated can be obtained first, then when the scene to be simulated comprises a disordered scene, the sequence of at least two frames in all frames of the multimedia file is adjusted, the disordered multimedia file is obtained, and the disordered multimedia file is sent to the server side. Therefore, the abnormal data flow of the disordered multimedia file is simulated, and the service end of the internet provider can optimize the provided service in advance based on the simulated abnormal data flow. Of course, it is not necessary for any product or method of practicing the invention to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a live streaming scenario according to an embodiment of the present invention;
FIG. 2 is a flowchart of a first implementation of an abnormal data flow simulation method according to an embodiment of the present invention;
FIG. 3 is a flowchart of a second implementation of an abnormal data flow simulation method according to an embodiment of the present invention;
FIG. 4 is a flowchart of a method for simulating an abnormal data flow according to a third embodiment of the present invention;
FIG. 5 is a flowchart illustrating a method for simulating an abnormal data flow according to a fourth embodiment of the present invention;
fig. 6 is a flowchart of a method for simulating an abnormal data flow according to a fifth implementation manner of the embodiment of the present invention;
FIG. 7 is a schematic structural diagram of an abnormal data flow simulation apparatus according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to solve the problems in the prior art, embodiments of the present invention provide an abnormal data flow simulation method, an abnormal data flow simulation device, an electronic device, and a storage medium, so as to simulate an abnormal data flow in a network, thereby enabling an internet service provider to optimize an internet service in advance based on the simulated abnormal data flow.
First, an abnormal data flow simulation method, an abnormal data flow simulation device, an electronic device, and a storage medium according to embodiments of the present invention may be applied to a client in a live streaming scenario, as shown in fig. 1, which is an architecture diagram of a live streaming scenario according to an embodiment of the present invention, where the live streaming scenario may include a client 120 and a CDN network 110, where the client 120 may include a streaming client and a streaming client, the streaming client is a client that sends multimedia data to the CDN network, and the streaming client is a client that receives multimedia data sent by the CDN network. The client 120 may be a notebook, desktop computer, smart phone, etc.
The CDN network 110 can include a central server 111 and cache servers 112, and the cache servers 112 can be deployed at different locations. The central server 111 is mainly configured to, after receiving the data obtaining request, schedule the obtaining request to a cache server closest to a client sending the data obtaining request, where the cache server is mainly used for storing data to be cached sent by a terminal.
When the method for simulating the abnormal data stream according to the embodiment of the present invention is applied to the live streaming scenario, the streaming client may adjust the sequence of at least two frames in all frames of the multimedia file after acquiring the scenario to be simulated and the multimedia file used by the scenario to be simulated, and when the scenario to be simulated in the simulation task includes a disordered scenario, obtain the disordered multimedia file, and send the disordered multimedia file to any cache server 112. Therefore, simulation of the out-of-order scene is achieved, and the CDN network service provider can optimize the CDN network based on the multimedia files obtained through out-of-order processing sent by the simulated out-of-order scene.
Next, a method for simulating an abnormal data flow according to an embodiment of the present invention is described, as shown in fig. 2, which is a flowchart of a first implementation manner of the method for simulating an abnormal data flow according to an embodiment of the present invention, where the method may include:
s210, acquiring a scene to be simulated and a multimedia file used by the scene to be simulated;
s220, when the scene to be simulated comprises a disorder scene, adjusting the sequence of at least two frames in all frames of the multimedia file to obtain the disorder processed multimedia file, and sending the disorder processed multimedia file to the server.
According to the abnormal data flow simulation method provided by the embodiment of the invention, when an abnormal data flow is simulated, a scene to be simulated and a multimedia file used by the scene to be simulated can be obtained first, then when the scene to be simulated comprises a disordered scene, the sequence of at least two frames in all frames of the multimedia file is adjusted to obtain the disordered multimedia file, and the disordered multimedia file is sent to a server side. Therefore, the abnormal data flow of the disordered multimedia file is simulated, and the service end of the internet provider can optimize the provided service in advance based on the simulated abnormal data flow.
In some examples, when all frames of the multimedia file are processed out of order, the order of at least two frames of all frames of the multimedia file may be randomly adjusted, i.e., randomly scrambled. Thereby, the simulated abnormal data flow can be obtained.
In still other examples, the multimedia file is time-stamped, that is, each frame of the multimedia file has a corresponding time stamp. Therefore, when the order of at least two frames in all frames of the multimedia file is adjusted, the corresponding relation between at least two frames in all frames of the multimedia file and the corresponding timestamps can be adjusted based on the timestamp of each frame of the multimedia file, so that the disorder processing of the multimedia file is realized.
When the corresponding relationship between at least two frames of all frames of the multimedia file and the corresponding timestamps is adjusted, a preset adjustment rule can be adopted for adjustment, wherein the preset adjustment rule can be a rule for adjusting the corresponding relationship between a plurality of frames and the corresponding timestamps, for example, at least two adjacent frames and the corresponding timestamps can be exchanged; for another example, at least two non-adjacent frames may be transposed with corresponding timestamps.
It is to be understood that the preset adjustment rules listed herein are merely exemplary descriptions. Other preset adjustment rules that can be obtained by a person skilled in the art based on the two exemplary descriptions above should also be within the scope of the embodiments of the present invention.
In some examples, the multimedia file may be an audio file or a video file, wherein the time stamp of each video frame of the video file may include a decoding time stamp or a display time stamp; wherein the video file may be a standard flash (streaming media format) video file.
When the timestamp of each video frame of the video file is a decoding timestamp, the adjusting, based on the timestamp of each frame of the multimedia file, a correspondence between at least two frames of all frames of the multimedia file and the corresponding timestamps to obtain the multimedia file after the out-of-order processing may include:
based on the decoding time stamps of all video frames of the video file, adjusting the corresponding relation between at least two video frames in all video frames of the multimedia file and the corresponding decoding time stamps to obtain the multimedia file after disorder processing;
when the timestamp of each video frame of the video file is a display timestamp, adjusting a correspondence between at least two frames of all frames of the multimedia file and the corresponding timestamps based on the timestamp of each frame of the multimedia file to obtain the multimedia file after the out-of-order processing, which may include:
and adjusting the corresponding relation between at least two video frames in all the video frames of the multimedia file and the corresponding display time stamps based on the display time stamps of all the video frames of the video file to obtain the multimedia file after disorder processing.
By the embodiment of the invention, different out-of-order processing can be carried out based on different timestamps of each video frame of the video file, so that different abnormal data streams can be simulated, and further, different aspects of optimization can be carried out on the Internet service based on different abnormal data streams.
The abnormal data flow simulation method provided by the embodiment of the invention can simulate the disorder condition of the multimedia file and also can simulate the frame loss and/or jam condition. On the basis of the abnormal data flow simulation method shown in fig. 2, an embodiment of the present invention further provides a possible implementation manner, as shown in fig. 3, which is a flowchart of a second implementation manner of the abnormal data flow simulation method according to the embodiment of the present invention, and the method may include:
s310, a scene to be simulated and a multimedia file used by the scene to be simulated are obtained.
In some examples, when an internet provider needs to optimize an internet service provided by the internet provider, for example, when the CDN provider needs to optimize a CDN network provided by the CDN provider, the abnormal data flow simulation method provided by the embodiment of the present invention may be used to simulate an abnormal data flow, and further, the internet service provided by the internet provider may be optimized based on the simulated abnormal data flow.
In still other examples, an administrator of the internet provider may select an electronic device as a plug-flow client, and then import or retrieve a scene to be simulated and a multimedia file used by the scene to be simulated on or from the plug-flow client, so that the client may acquire the scene to be simulated and the multimedia file used by the scene to be simulated.
In some examples, when the scene to be simulated is a frame-dropping scene, the frame-dropping scene also has a corresponding frame-dropping rate;
in still other examples, when the scene to be simulated is a stuck scene, the stuck scene also has a corresponding stuck duration;
s320, when the scene to be simulated comprises a disorder scene, adjusting the sequence of at least two frames in all frames of the multimedia file to obtain the disorder processed multimedia file, and sending the disorder processed multimedia file to the server.
S330, when the scene to be simulated comprises a frame loss scene, at least one frame in all frames of the multimedia file is discarded according to the frame loss rate corresponding to the frame loss scene to obtain the multimedia file after frame loss processing, and the multimedia file after frame loss processing is sent to the server side.
And S340, when the scene to be simulated comprises a pause scene, at least one frame of all frames of the multimedia file is sent to the server side according to the pause time delay corresponding to the pause scene.
After the client acquires the scene to be simulated and the multimedia file used by the scene to be simulated, the scene to be simulated can be determined.
In some examples, different scenes to be simulated may be preset on the client, the client may obtain identification information of the scenes to be simulated, and after the client obtains the identification information of the scenes to be simulated, the client may determine the scenes to be simulated based on the identification information of the scenes to be simulated.
When it is determined that the scene to be simulated includes a frame loss scene, at least one frame of all frames of the multimedia file can be dropped according to a frame loss rate corresponding to the frame loss scene to obtain a multimedia file after frame loss processing, and the multimedia file after frame loss processing is sent to the server side.
In some examples, the frame loss rate may be a frame loss rate for partial content in a complete video frame, in addition to a frame loss rate for a complete video frame.
When the frame loss rate is a frame loss rate for a complete video frame, at least one frame of all frames of the multimedia file can be discarded according to the frame loss rate, so that the multimedia file after frame loss processing can be obtained.
When the frame loss rate is a frame loss rate for partial content in a complete video frame, partial bytes in the complete video frame can be discarded according to the frame loss rate, so that a multimedia file containing at least one incomplete video frame can be obtained.
In still other examples, when a part of content in a complete video frame is discarded, at least one byte in the body of the data corresponding to the video frame may be discarded, and at least one byte in the header identification part of the data corresponding to the video frame may also be discarded.
When it is determined that the scene to be simulated includes a katon scene, at least one frame of all frames of the multimedia file can be sent to the server side according to the katon time delay corresponding to the katon scene. Wherein the katton time length may also be randomly generated.
In some examples, the server may be a central server 111 in the CDN network or a cache server 112 in the CDN network.
By the embodiment of the invention, simulation of various abnormal data streams can be realized, and further an internet provider can carry out targeted optimization based on different simulated abnormal data streams, for example, when abnormal data streams in an out-of-order scene are simulated, the performance of correcting out-of-order in a CDN (content delivery network) can be optimized. When abnormal data flow in a stuck scene is simulated, the stuck problem in the CDN can be optimized.
On the basis of the abnormal data flow simulation method shown in fig. 2, an embodiment of the present invention further provides a possible implementation manner, and as shown in fig. 4, the method is a flowchart of a third implementation manner of the abnormal data flow simulation method according to the embodiment of the present invention, and the method may include:
s410, acquiring a scene to be simulated and a multimedia file used by the scene to be simulated.
Wherein, the scene to be simulated may include: the method comprises the following steps of (1) carrying out a disorder scene and a frame loss scene, wherein the frame loss scene has a corresponding frame loss rate;
s420, when the scene to be simulated comprises a disordered scene and a frame loss scene, adjusting the sequence of at least two frames in all the frames of the multimedia file to obtain the multimedia file after disorder processing;
s430, discarding at least one frame of all frames of the multimedia file after the out-of-order processing according to a frame loss rate corresponding to a frame loss scene to obtain the multimedia file after the out-of-order and frame loss processing;
s440, the multimedia file after the disordering and frame dropping processing is sent to a server side.
In some examples, an abnormal data flow simulation method according to an embodiment of the present invention may be used to simulate abnormal data flows in multiple situations, in addition to the abnormal data flows in different situations.
In this regard, when the administrator of the internet provider inputs or imports the scene to be simulated into the client, the scene to be simulated may be set to include at least two scenes, for example, a disordered scene and a frame loss scene.
After the client acquires the scene to be simulated, when the scene to be simulated includes a disordered scene and a frame loss scene, all frames of the multimedia file can be firstly subjected to disordered processing, so that the multimedia file after disordered processing can be obtained, then all frames in the multimedia file after disordered processing are subjected to frame loss processing according to the frame loss rate corresponding to the frame loss scene, namely, at least one frame in the multimedia file after disordered processing is discarded according to the frame loss rate corresponding to the frame loss scene, so that the multimedia file after disordered processing and frame loss can be obtained. And finally, the multimedia file after the disordering and frame dropping processing can be sent to a server side.
In still other examples, the scene to be simulated may include a stuck scene in addition to the out-of-order scene and the frame loss scene, and correspondingly, the stuck scene has a stuck duration;
when the scene to be simulated further includes a stuck scene, after the client obtains the multimedia file after the disordering and frame dropping processing, at least one frame of the multimedia file after the disordering and frame dropping processing can be sent to the server according to the stuck duration corresponding to the stuck scene.
Therefore, simulation of at least three abnormal scenes in one simulation task can be realized, and an internet provider can optimize the internet service provided by the internet provider based on abnormal data generated by a simulation disorder scene, a frame loss scene and a stuck scene.
On the basis of the abnormal data flow simulation method shown in fig. 2, an embodiment of the present invention further provides a possible implementation manner, as shown in fig. 5, which is a flowchart of a fourth implementation manner of the abnormal data flow simulation method according to the embodiment of the present invention, and the method may include:
s510, a scene to be simulated and a multimedia file used by the scene to be simulated are obtained.
Wherein, the scene to be simulated comprises: the method comprises the following steps of (1) carrying out a disorder scene and a frame loss scene, wherein the frame loss scene has a corresponding frame loss rate;
s520, when the scene to be simulated comprises a disordered scene and a frame loss scene, dropping at least one frame of all frames of the multimedia file according to a frame loss rate corresponding to the frame loss scene to obtain the multimedia file after frame loss processing;
s530, adjusting the sequence of at least two frames in all frames of the multimedia file after frame loss processing to obtain the multimedia file after disorder and frame loss processing;
and S540, sending the multimedia file after the disordering and frame dropping processing to a server.
In some examples, when the simulation task includes both an out-of-order scene and a frame-dropping scene, the client may generate an abnormal data stream to be simulated by using the fourth implementation manner of the embodiment of the present invention, in addition to generating the abnormal data stream to be simulated by using the third implementation manner of the embodiment of the present invention.
For example, when the client determines that the scene to be simulated includes a disordered scene and a frame-missing scene, the client may first perform frame-missing processing on all frames of the multimedia file according to a frame-missing rate corresponding to the frame-missing scene to obtain a frame-missing processed multimedia file, then perform disorder processing on all frames of the frame-missing processed multimedia file to obtain a disordered and frame-missing processed multimedia file, and finally may send the disordered and frame-missing processed multimedia file to the server.
On the basis of the abnormal data flow simulation method shown in fig. 2, an embodiment of the present invention further provides a possible implementation manner, as shown in fig. 6, which is a flowchart of a fifth implementation manner of the abnormal data flow simulation method according to the embodiment of the present invention, and the method may include:
s610, acquiring a scene to be simulated and a multimedia file used by the scene to be simulated.
The scene to be simulated comprises a disorder scene and a stuck scene, wherein the stuck scene has corresponding stuck duration;
s620, when the scene to be simulated comprises a disorder scene and a stuck scene, adjusting the sequence of at least two frames in all the frames of the multimedia file to obtain the multimedia file after disorder processing;
s630, at least one frame in the multimedia file after the disorder processing is sent to the server side according to the pause time corresponding to the pause scene.
In some examples, in addition to simulating the abnormal data stream in the out-of-order scene and the frame loss scene at the same time, the embodiment of the present invention may also simulate the abnormal data stream in at least two other scenes. For example, the flow of exception data in an out-of-order scenario and a stuck scenario may be simulated simultaneously.
In this regard, the administrator of the internet provider may set the scenes to be simulated to include the out-of-order scenes and the stuck scenes when inputting or importing the scenes to be simulated to the client.
After the client acquires the scene to be simulated, when the scene to be simulated comprises a disordered scene and a stuck scene, all frames of the multimedia file can be disordered firstly to obtain a disordered multimedia file; and then when the multimedia file after disorder processing is sent to the server, at least one frame in the multimedia file after disorder processing can be sent to the server according to the pause time length corresponding to the pause scene. Therefore, abnormal data flow under the out-of-order scene and the stuck scene can be simulated. And further, the Internet provider can optimize the Internet service provided by the Internet provider based on the abnormal data flow in the disorder scene and the stuck scene.
Corresponding to the above method embodiment, an embodiment of the present invention further provides an abnormal data flow simulation apparatus, as shown in fig. 7, which is a schematic structural diagram of the abnormal data flow simulation apparatus according to the embodiment of the present invention, and the apparatus may include:
an obtaining module 710, configured to obtain a scene to be simulated and a multimedia file used by the scene to be simulated;
the out-of-order processing module 720 is configured to, when the scene to be simulated includes an out-of-order scene, adjust an order of at least two frames in all frames of the multimedia file to obtain an out-of-order processed multimedia file, and send the out-of-order processed multimedia file to the server.
The abnormal data flow simulation device provided by the embodiment of the invention can firstly acquire a scene to be simulated and a multimedia file used by the scene to be simulated when the abnormal data flow is simulated, then adjust the sequence of at least two frames in all the frames of the multimedia file when the scene to be simulated comprises a disordered scene to obtain the disordered multimedia file, and send the disordered multimedia file to the server. Therefore, the abnormal data flow of the disordered multimedia file is simulated, and the service end of the internet provider can optimize the provided service in advance based on the simulated abnormal data flow.
In some examples, the out-of-order processing module 720 is specifically configured to:
randomly adjusting the sequence of at least two frames in all frames of the multimedia file to obtain the multimedia file after disorder processing; or
And adjusting the corresponding relation between at least two frames in all the frames of the multimedia file and the corresponding time stamp based on the time stamp of each frame of the multimedia file to obtain the multimedia file after disorder processing.
In some examples, the multimedia file is a video file, and the timestamp for each video frame of the video file includes: decoding the time stamp or displaying the time stamp;
in some examples, the out-of-order processing module 720 is specifically configured to:
based on the decoding time stamps of all video frames of the video file, adjusting the corresponding relation between at least two video frames in all video frames of the multimedia file and the corresponding decoding time stamps to obtain the multimedia file after disorder processing; or
And adjusting the corresponding relation between at least two video frames in all the video frames of the multimedia file and the corresponding display time stamps based on the display time stamps of all the video frames of the video file to obtain the multimedia file after disorder processing.
In some examples, the scene to be simulated further comprises: a frame loss scene;
the abnormal data flow simulation device further comprises:
the frame loss processing module is used for discarding at least one frame of all frames of the multimedia file according to a frame loss rate corresponding to a frame loss scene when the scene to be simulated comprises the frame loss scene to obtain the multimedia file after frame loss processing;
and sending the multimedia file after frame loss processing to a server side.
In some examples, the scene to be simulated further comprises: a frame loss scene;
an out-of-order processing module 720, comprising:
the first disorder processing submodule is used for adjusting the sequence of at least two frames in all the frames of the multimedia file to obtain a disorder processed multimedia file;
the frame loss processing submodule is used for discarding at least one frame in all frames of the multimedia file after the disorder processing according to the frame loss rate corresponding to the frame loss scene to obtain the multimedia file after the disorder and frame loss processing;
and the sending submodule is used for sending the multimedia file subjected to the disorder and frame loss processing to the server side.
In some examples, the scene to be simulated further comprises: a stuck scene; a sending submodule, specifically configured to:
and at least one frame in the multimedia file after the disorder and frame loss processing is sent to a server according to the pause time delay corresponding to the pause scene.
In some examples, the scene to be simulated further comprises: a frame loss scene;
the abnormal data flow simulation device further comprises:
the frame loss processing module is used for discarding at least one frame in all frames of the multimedia file according to a frame loss rate corresponding to a frame loss scene to obtain the multimedia file after frame loss processing;
the out-of-order processing module 720 is specifically configured to:
adjusting the sequence of at least two frames in all frames of the multimedia file after frame loss processing to obtain the multimedia file after disorder and frame loss processing;
and sending the multimedia file subjected to the disordering and frame dropping processing to a server.
In some examples, the scene to be simulated further comprises: a stuck scene; the out-of-order processing module 720 is specifically configured to:
and at least one frame in the multimedia file after the disorder and frame loss processing is sent to a server according to the pause time delay corresponding to the pause scene.
In some examples, the scene to be simulated further comprises: a stuck scene; the abnormal data flow simulation device further comprises:
and the pause processing module is used for sending at least one frame of all frames of the multimedia file to the server side according to the pause time delay corresponding to the pause scene when the scene to be simulated comprises the pause scene.
In some examples, the scene to be simulated further comprises: a stuck scene;
an out-of-order processing module 720, comprising:
the second disorder processing submodule is used for adjusting the sequence of at least two frames in all the frames of the multimedia file to obtain a disorder processed multimedia file;
and the pause processing submodule is used for transmitting at least one frame in the multimedia file after the disorder processing to the server side according to the pause time delay corresponding to the pause scene.
An electronic device is further provided, as shown in fig. 8, and is a schematic structural diagram of the abnormal data flow simulation method applied to the electronic device according to the embodiment of the present invention, where the electronic device may include a processor 801 and a machine-readable storage medium 802, the machine-readable storage medium 802 stores machine-executable instructions capable of being executed by the processor 801, and the processor 801 is caused by the machine-executable instructions to: the steps of implementing any abnormal data flow simulation method shown in the above embodiments may be implemented, for example, as follows:
acquiring a scene to be simulated and a multimedia file used by the scene to be simulated;
when the scene to be simulated comprises a disordered scene, adjusting the sequence of at least two frames in all frames of the multimedia file to obtain the disordered multimedia file, and sending the disordered multimedia file to the server.
According to the electronic device provided by the embodiment of the invention, when an abnormal data stream is simulated, a scene to be simulated and a multimedia file used by the scene to be simulated can be obtained first, then when the scene to be simulated comprises a disordered scene, the sequence of at least two frames in all frames of the multimedia file is adjusted to obtain the disordered multimedia file, and the disordered multimedia file is sent to the server side. Therefore, the abnormal data flow of the disordered multimedia file is simulated, and the service end of the internet provider can optimize the provided service in advance based on the simulated abnormal data flow.
The machine-readable storage medium 802 may include a Random Access Memory (RAM) and may also include a Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.
The Processor 801 may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the method for simulating an abnormal data stream according to any of the foregoing embodiments is implemented, for example, the method may further include:
acquiring a scene to be simulated and a multimedia file used by the scene to be simulated;
when the scene to be simulated comprises a disordered scene, adjusting the sequence of at least two frames in all frames of the multimedia file to obtain the disordered multimedia file, and sending the disordered multimedia file to the server.
The computer-readable storage medium provided by the embodiment of the invention can acquire a scene to be simulated and a multimedia file used by the scene to be simulated when an abnormal data stream is simulated, then adjust the sequence of at least two frames in all frames of the multimedia file when the scene to be simulated includes a disordered scene to obtain the disordered multimedia file, and send the disordered multimedia file to a server. Therefore, the abnormal data flow of the disordered multimedia file is simulated, and the service end of the internet provider can optimize the provided service in advance based on the simulated abnormal data flow.
Embodiments of the present invention further provide a computer program product including instructions, which when run on a computer, causes the computer to perform the steps of any of the abnormal data flow simulation methods shown in the foregoing embodiments, for example, the following steps may be performed:
acquiring a scene to be simulated and a multimedia file used by the scene to be simulated;
when the scene to be simulated comprises a disordered scene, adjusting the sequence of at least two frames in all frames of the multimedia file to obtain the disordered multimedia file, and sending the disordered multimedia file to the server.
According to the computer program product containing the instruction provided by the embodiment of the invention, when an abnormal data stream is simulated, a scene to be simulated and a multimedia file used by the scene to be simulated can be obtained first, then when the scene to be simulated comprises a disordered scene, the sequence of at least two frames in all frames of the multimedia file is adjusted to obtain the disordered multimedia file, and the disordered multimedia file is sent to the server side. Therefore, the abnormal data flow of the disordered multimedia file is simulated, and the service end of the internet provider can optimize the provided service in advance based on the simulated abnormal data flow.
The embodiment of the present invention further provides a computer program, which when running on a computer, causes the computer to execute the steps of any abnormal data flow simulation method shown in the foregoing embodiment, for example, the following steps may be executed:
acquiring a scene to be simulated and a multimedia file used by the scene to be simulated;
when the scene to be simulated comprises a disordered scene, adjusting the sequence of at least two frames in all frames of the multimedia file to obtain the disordered multimedia file, and sending the disordered multimedia file to the server.
According to the computer program provided by the embodiment of the invention, when an abnormal data stream is simulated, a scene to be simulated and a multimedia file used by the scene to be simulated can be obtained first, then when the scene to be simulated comprises a disordered scene, the sequence of at least two frames in all frames of the multimedia file is adjusted to obtain the disordered multimedia file, and the disordered multimedia file is sent to a server side. Therefore, the abnormal data flow of the disordered multimedia file is simulated, and the service end of the internet provider can optimize the provided service in advance based on the simulated abnormal data flow.
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.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially 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.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (12)
1. An abnormal data flow simulation method applied to a client side, the method comprising:
acquiring a scene to be simulated and a multimedia file used by the scene to be simulated;
and when the scene to be simulated comprises a disordered scene, adjusting the sequence of at least two frames in all the frames of the multimedia file to obtain a disordered multimedia file, and sending the disordered multimedia file to a server.
2. The method of claim 1, wherein the adjusting the order of at least two frames of all frames of the multimedia file to obtain the out-of-order processed multimedia file comprises:
randomly adjusting the sequence of at least two frames in all frames of the multimedia file to obtain the multimedia file after disorder processing; or
And adjusting the corresponding relation between at least two frames in all the frames of the multimedia file and the corresponding time stamps based on the time stamp of each frame of the multimedia file to obtain the multimedia file after disorder processing.
3. The method of claim 2, wherein the multimedia file is a video file, and wherein the timestamp of each video frame of the video file comprises: decoding the time stamp or displaying the time stamp;
the adjusting, based on the timestamp of each frame of the multimedia file, a correspondence between at least two frames of all frames of the multimedia file and the corresponding timestamps to obtain the multimedia file after disorder processing includes:
adjusting the corresponding relation between at least two video frames in all video frames of the multimedia file and the corresponding decoding time stamps based on the decoding time stamps of all video frames of the video file to obtain the multimedia file after disorder processing; or
And adjusting the corresponding relation between at least two video frames in all the video frames of the multimedia file and the corresponding display time stamps based on the display time stamps of all the video frames of the video file to obtain the multimedia file after disorder processing.
4. The method according to any one of claims 1 to 3, wherein the scene to be simulated further comprises: a frame loss scene;
after the acquiring all frames of the multimedia file corresponding to the identification information, the method further includes:
when the scene to be simulated comprises a frame loss scene, discarding at least one frame of all frames of the multimedia file according to a frame loss rate corresponding to the frame loss scene to obtain a frame loss processed multimedia file;
and sending the multimedia file after the frame loss processing to the server side.
5. The method of claim 1, wherein the scene to be simulated further comprises: a frame loss scene;
the adjusting of the sequence of at least two frames in all frames of the multimedia file to obtain the multimedia file after disorder processing, and sending the multimedia file after disorder processing to a server side includes:
adjusting the sequence of at least two frames in all frames of the multimedia file to obtain the multimedia file after disorder processing;
discarding at least one frame of all frames of the multimedia file after the disordered processing according to a frame loss rate corresponding to the frame loss scene to obtain the multimedia file after the disordered and frame loss processing;
and sending the multimedia file after the disordered and frame loss processing to the server side.
6. The method of claim 1, wherein the scene to be simulated further comprises: a frame loss scene;
before the adjusting the order of at least two frames of all frames of the multimedia file to obtain the multimedia file after out-of-order processing, the method further includes:
discarding at least one frame of all frames of the multimedia file according to a frame loss rate corresponding to the frame loss scene to obtain a multimedia file after frame loss processing;
the adjusting of the sequence of at least two frames in all frames of the multimedia file to obtain the multimedia file after disorder processing, and sending the multimedia file after disorder processing to a server side includes:
adjusting the sequence of at least two frames in all frames of the multimedia file after the frame loss processing to obtain the multimedia file after the disorder and frame loss processing;
and sending the multimedia file after the disordered and frame loss processing to the server side.
7. The method of claim 5 or 6, wherein the scene to be simulated further comprises: a stuck scene;
the sending the multimedia file after the out-of-order and frame loss processing to the server side comprises:
and sending at least one frame in the multimedia file after the disorder and frame loss processing to the server according to the pause time delay of the pause scene.
8. The method of claim 1, wherein the scene to be simulated further comprises: a stuck scene;
after the acquiring the scene to be simulated and the multimedia file used by the scene to be simulated, the method further comprises:
and when the scene to be simulated comprises a pause scene, at least one frame in all frames of the multimedia file is sent to the server side according to the pause time delay corresponding to the pause scene.
9. The method of claim 1, wherein the scene to be simulated further comprises: a stuck scene;
the adjusting of the sequence of at least two frames in all frames of the multimedia file to obtain the multimedia file after disorder processing, and sending the multimedia file after disorder processing to a server side includes:
adjusting the sequence of at least two frames in all frames of the multimedia file to obtain the multimedia file after disorder processing;
and sending at least one frame in the multimedia file after the disorder processing to the server side according to the pause time delay corresponding to the pause scene.
10. An abnormal data flow simulation apparatus, comprising:
the system comprises an acquisition module, a simulation module and a display module, wherein the acquisition module is used for acquiring a scene to be simulated and a multimedia file used by the scene to be simulated;
and the disorder processing module is used for adjusting the sequence of at least two frames in all the frames of the multimedia file to obtain a disorder processed multimedia file when the scene to be simulated comprises a disorder scene, and sending the disorder processed multimedia file to a server.
11. An electronic device comprising a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor, the processor being caused by the machine-executable instructions to: carrying out the process steps of any one of claims 1 to 9.
12. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method steps of any one of claims 1 to 9.
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