CN112312228A - Method, device and storage medium for detecting medium transmission quality index - Google Patents
Method, device and storage medium for detecting medium transmission quality index 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/64—Addressing
- H04N21/6405—Multicasting
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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
- H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
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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
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
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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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
- H04N21/64723—Monitoring of network processes or resources, e.g. monitoring of network load
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Abstract
The present disclosure provides a media transmission quality index detection method, an apparatus, and a storage medium, which are used to solve the technical problem that an eMDI instance cannot obtain an accurate and comprehensive detection and analysis result in a multi-link scenario. The scheme provided by the disclosure expands the functions of the eMMC assembly, and divides the eMMC instance into two instance types of an eMMC collector and an eMMC analyzer, wherein the eMMC collector is used for collecting transmission quality index data of a media data stream and sending the collected transmission quality index data to the eMMC analyzer, and the eMMC analyzer collects and analyzes the transmission quality index data collected by the eMMC collector and other eMMC collectors, so that comprehensive monitoring and analysis results of the media data stream flowing through a plurality of links are obtained.
Description
Technical Field
The present disclosure relates to the field of network communication technologies, and in particular, to a method and an apparatus for detecting media transmission quality index, and a storage medium.
Background
In video services based on multicast, such as IPTV, packet loss, disorder and jitter are three important factors affecting video quality. Packet loss, misordering, and jitter may cause video screenings and mosaics.
eMDI (Enhanced Media Delivery Index) is a network quality monitoring and fault delimiting scheme specially designed for video and audio services, and can directly perform Real-time monitoring and analysis on service messages which are designated on each network node in an IP network and are carried by TCP (Transmission control Protocol) or RTP (Real-time Transport Protocol), and a network administrator can quickly delimit the fault position by combining the monitoring and analysis results of a plurality of network nodes.
The eMDI instance is formed after the components for realizing the eMDI function run, a plurality of eMDI instances can run on one device, and the configuration parameters of each eMDI instance comprise target data flow, monitoring period, monitoring time, alarm threshold value and the like. The eMDI component can be deployed on each node through which a data stream passes, the target data stream is monitored in real time through an eMDI example, relevant fields in a message header of the target data stream are collected, analysis and calculation are carried out by taking a period as a basic unit, and then analysis data are reported to a network manager. The eMDI example independently monitors data streams in real time on each node device, and calculates data stream transmission quality data such as packet loss, time delay, disorder and the like.
In the current scheme, an eMDI instance operates independently on a single device, and the single device can monitor and calculate the transmission quality index of a data stream, the implementation scheme has limitations, all messages of a default data stream pass through the device where the eMDI instance is located, but in a link load sharing network, only part of different messages of one stream may pass through the device where the eMDI instance is located, the eMDI real-time monitoring is started in such a scene, and the statistical data for specific data streams is inaccurate and the overall comprehensive detection and analysis result cannot be obtained.
Disclosure of Invention
In view of the above, the present disclosure provides a method, an apparatus, and a storage medium for detecting a media transmission quality index, which are used to solve the technical problem that an eMDI instance cannot obtain an accurate and comprehensive detection and analysis result in a multi-link scenario.
Based on an embodiment of the present disclosure, the present disclosure provides a method for detecting a media transmission quality index, where the method is applied to an eMDI analyzer, and the method includes:
receiving transmission quality index data of a detected data stream collected and transmitted by an eMDI collector and storing the transmission quality index data in a storage space;
and adopting an eMDI algorithm to perform summary analysis on the transmission quality index data of the detected data stream.
Further, the detected data stream is a data stream with specified configuration parameters, and the configuration parameters are data streams with the same source and destination addresses or with the same multicast group address.
Further, the method further comprises:
collecting the transmission quality index data of the detected data stream locally and storing the data in a storage space;
the summarizing analysis is to comprehensively summarize and analyze the transmission quality index data of the detected data stream which is locally collected and stored in the storage space and the transmission quality index data of the detected data stream which is collected and transmitted by the eMDI collector.
Further, the eMDI collector is located on one or more different network nodes on a plurality of links through which the detected data stream flows, where the plurality of links are load sharing links or equivalent links.
Based on this disclosed embodiment, this disclosure still provides a media transmission quality index detection device, and this device runs with the eMDI collector role, and this device includes:
the acquisition module is used for acquiring transmission quality index data of the detected data stream;
a transmitting module for transmitting the collected transmission quality indicator data of the detected data stream to the eMDI analyzer.
Based on this disclosed embodiment, this disclosure still provides a media transmission quality index detection device, and this device runs with the embi analyzer role, and this device includes:
the receiving module is used for receiving the transmission quality index data of the detected data stream collected and transmitted by the eMDI collector and storing the transmission quality index data in a storage space;
the storage module is used for providing a read-write interface of a storage space;
and the analysis module is used for carrying out summary analysis on the transmission quality index data of the detected data stream by adopting an eMDI algorithm.
Further, the detected data stream is a data stream with specified configuration parameters, and the configuration parameters are data streams with the same source and destination addresses or with the same multicast group address.
Further, the apparatus further comprises: the acquisition module is used for locally acquiring the transmission quality index data of the detected data stream and storing the data in a storage space;
the analysis module comprehensively summarizes and analyzes the locally acquired transmission quality index data of the detected data stream stored in the storage space and the transmission quality index data of the detected data stream acquired and transmitted by the eMDI acquisition unit.
Further, the apparatus and the eMDI collector are located on one or more different network nodes on a plurality of links through which the detected data stream flows, where the plurality of links are load sharing links or equivalent links.
The scheme provided by the disclosure expands the functions of the eMMC assembly, and divides the eMMC instance into two instance types of an eMMC collector and an eMMC analyzer, wherein the eMMC collector is used for collecting transmission quality index data of a media data stream and sending the collected transmission quality index data to the eMMC analyzer, and the eMMC analyzer collects and analyzes the transmission quality index data collected by the eMMC collector and other eMMC collectors, so that comprehensive monitoring and analysis results of the media data stream flowing through a plurality of links are obtained.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present disclosure or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and other drawings can be obtained by those skilled in the art according to the drawings of the embodiments of the present disclosure.
Fig. 1 is a flowchart illustrating steps of a method for detecting a medium transmission quality indicator according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a logic structure of a media transmission quality indicator detection apparatus according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a logic structure of an apparatus for detecting a media transmission quality indicator according to an embodiment of the present disclosure;
fig. 4 is a schematic networking diagram of media transmission quality indicator detection performed by eMDI distributed deployment according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a device for detecting a media transmission quality indicator according to an embodiment of the present disclosure.
Detailed Description
The terminology used in the embodiments of the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present disclosure. As used in the embodiments of the present disclosure, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The term "and/or" as used in this disclosure is meant to encompass any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information in the embodiments of the present disclosure, such information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of embodiments of the present disclosure. Depending on the context, moreover, the word "if" as used may be interpreted as "at … …" or "when … …" or "in response to a determination".
Because the existing eMDI component can only be deployed in a single point and only supports the detection of the media transmission quality index of a single network node, and the comprehensive detection and fault location of the media transmission quality index under the condition of multiple equal-cost multiple paths and multiple load sharing links cannot be realized, the invention provides a method and a device for detecting the media transmission quality index, which are used for solving the problems, the scheme provided by the invention expands the functions of the eMDI component, the eMDI example is divided into two example types of an eMDI collector and an eMDI analyzer, the eMDI collector is used for collecting the transmission quality index data of the media data stream (including multicast data stream and unicast data stream) and sending the collected transmission quality index data to the eMDI analyzer, and the eMDI analyzer collects and analyzes the transmission quality index data collected by the eMDI collector and other eMDI collectors, thereby obtaining the comprehensive monitoring and analysis results of the media data stream flowing through the plurality of links.
Fig. 1 is a flowchart illustrating steps of a method for detecting a media transmission quality indicator, which is applied to an eMDI analyzer, according to an embodiment of the present disclosure, and the method includes:
the detected data stream may be a multimedia multicast data stream or a unicast data stream.
The detected data stream is a data stream with specified configuration parameters, and the configuration parameters may be one or a combination of multiple network parameters carried by messages such as network addresses, ports, protocol types, and the like, for example, data streams with the same source and destination addresses, data streams with the same multicast group address, and the like.
And 102, adopting an eMDI algorithm to perform summary analysis on the transmission quality index data of the detected data stream.
In an embodiment of the present disclosure, the method further includes a step of locally acquiring the transmission quality index data of the detected data stream and storing the data in a storage space, and accordingly, during the summary analysis, the locally acquired transmission quality index data of the detected data stream and the transmission quality index data of the detected data stream acquired and transmitted by the eMDI collector are comprehensively summarized and analyzed.
In an embodiment of the present disclosure, the eMDI collector is located on one or more different network nodes on a plurality of links through which the detected data stream flows. The plurality of links may be load sharing links or equivalent links.
Fig. 2 is a schematic diagram of a logic structure of a media transmission quality indicator detection apparatus according to an embodiment of the present disclosure, where the apparatus 200 is configured to implement an eMDI collector function by running in an eMDI collector role, and the apparatus includes: an acquisition module 210 and a transmission module 220.
The acquisition module 210 is configured to acquire transmission quality indicator data of the detected data stream.
The transmitting module 220 is configured to transmit the collected transmission quality indicator data of the detected data stream to the eMDI analyzer.
In an embodiment of the present disclosure, the functionality of the eMDI component is extended, and a role of the eMDI component after running can be configured through a configuration file. The roles are divided into an eMDI collector and an eMDI analyzer, the eMDI collector role is only responsible for collecting and transmitting transmission quality index data of detected data streams to the eMDI analyzer, and the eMDI analyzer receives the data collected by the eMDI collector and performs comprehensive summary analysis.
In this embodiment, an eMDI instance running in an eMDI collector role corresponds to device 200.
Fig. 3 is a schematic diagram of a logical structure of an apparatus for detecting a media transmission quality indicator according to an embodiment of the present disclosure, where the apparatus 300 is configured to implement a function of an eMDI analyzer in an eMDI analyzer role, and the apparatus 300 includes: a receiving module 310, a storing module 320, and an analyzing module 330.
The receiving module 310 is configured to receive transmission quality indicator data of a detected data stream collected and transmitted by an eMDI collector and store the transmission quality indicator data in a storage space.
The storage module 320 is used for providing a read-write interface of the storage space. The storage space may be located locally or in a remote database, and the storage module 320 provides an access interface of the storage space for the receiving module 310 and the analyzing module 330.
The analysis module 330 is configured to perform a summary analysis on the transmission quality indicator data of the detected data stream by using an eMDI algorithm.
In an embodiment of the present disclosure, the apparatus 300 further includes an acquisition module 340. The collecting module 340 is configured to collect the transmission quality index data of the detected data stream locally and store the data in the storage space. The analysis module 330 comprehensively summarizes and analyzes the locally collected transmission quality index data of the detected data stream stored in the storage space and the transmission quality index data of the detected data stream collected and transmitted by the eMDI collector.
Fig. 4 is a schematic networking diagram of media transmission quality indicator detection performed by eMDI distributed deployment according to an embodiment of the present disclosure. In this embodiment, the detected data stream is forwarded by the network node device a through two paths, i.e., the network node device B and the network node device C, and is collected at the network node device F and continuously sent to the terminal, the link 2 formed by the link 1 and the link A, C, E, F formed by A, B, D, F may be an equivalent or non-equivalent path, and the two links may be backup of each other or a load sharing link. If packet loss exists in data flow at a terminal and a packet loss interval needs to be located quickly, if eMDI examples are separately deployed on equipment A and equipment F according to the original functions of eMDI components, whether the faults exist between the equipment A and the equipment F or not is judged, but a plurality of links exist between the equipment A and the equipment F, multi-hop exists possibly, a large range is still available, accurate location cannot be achieved, and comprehensive summarizing analysis cannot be performed on detection results because analysis results obtained by the eMDI examples on the equipment A and the equipment F are independent analysis results.
The implementation steps of this embodiment are explained in detail below based on the media transmission quality index detection method provided by the present disclosure and the extended eMDI component of the present disclosure.
And step 401, configuring the role of the eMDI instance deployed on the network node B as an eMDI collector, and configuring the role of the eMDI instance deployed on the network node C as an eMDI analyzer.
In the existing eMDI implementation, the device functions for starting the eMDI instance are not distinguished, and all the functions are operated on a single machine, and in the embodiment of the present disclosure, it is necessary to respectively designate a network node device B as an eMDI collector and operate in a collector role, and designate a network node device C as an eMDI analyzer and operate in an analyzer role.
Step 402, network address configuration and time synchronization are performed.
Before transmission quality index data is transmitted between the network node device B and the network node device C, the eMDI collector can acquire the network address of the eMDI analyzer through a configuration file or other modes, in addition, time synchronization of the two devices is required to be carried out so as to ensure the time consistency of the detected data message, and the time can be synchronized through time protocols such as PTP, NTP and the like.
In order to improve timeliness and stability of data transmission, a direct link between the eMDI collector and the eMDI analyzer may be established for transmitting transmission quality index data of the detected data stream, and if unconditional, a management network or a service network may also be used, as long as the route between the devices is reachable.
Step 403, the eMDI collector on the network node device B collects the transmission quality index data of the detected data stream, and forwards the collected data to the eMDI analyzer on the network node device C.
The same detected data stream information is configured on the eMDI collector B and the analyzer C, respectively. The eMDI collector can collect transmission quality index data of a detected data stream after being started, but does not process the data locally, but records eMDI concerned information such as a timestamp and a TCP/UDP serial number when receiving a message of the detected data stream, and periodically sends the data to the eMDI analyzer.
And step 404, the eMDI analyzer receives the transmission quality index data of the detected data stream collected and transmitted by the eMDI collector and stores the transmission quality index data in a storage space.
The eMDI analyzer itself may also configure the function of the collector, for example, when the eMDI analyzer also configures the function of the collector, the device may store two pieces of data in the storage space, one piece of data collected locally, and the other piece of data sent by all the eMDI collectors.
And 405, after data sent by all the eMDI collectors are collected in each period, the eMDI analyzer starts to perform summary analysis on transmission quality index data of the detected data stream in the storage space through an eMDI algorithm.
The scheme of this embodiment can quickly define the fault point to be upstream or downstream of the BC device.
In the embodiment of the present disclosure, the eMDI analyzer may be deployed on any network node device in theory, even multiple different eMDI analyzers may be deployed on the same device with higher performance, for example, the eMDI analyzers on the distributed monitoring point BC, the distributed monitoring point DE, and the stand-alone monitoring point F are all deployed on the network node device a, the device a stores summarized data of different monitoring points, analyzes independently, generates respective eMDI data indexes of three monitoring points, and the administrator can determine the fault location only by analyzing and viewing the data on the device a.
Fig. 5 is a schematic structural diagram of an apparatus for detecting a media transmission quality indicator according to an embodiment of the present disclosure, where the apparatus 500 includes: a processor 510 such as a Central Processing Unit (CPU), an internal bus 520, a network interface 540, and a computer-readable storage medium 530. Wherein the processor 510 and the computer-readable storage medium 530 can communicate with each other through the internal bus 520. The computer readable storage medium 530 may store therein a computer program that is shown and implemented on an eMDI analyzer or an eMDI collector provided by the present disclosure to implement the steps of the media transmission quality indicator detection method, and when the computer program is executed by the processor 510, the functions of the steps of the method provided by the present disclosure may be implemented.
The above description is only an example of the present disclosure and is not intended to limit the present disclosure. Various modifications and variations of this disclosure will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (10)
1. A method for detecting a media transmission quality indicator (media transmission quality indicator), the method being applied to an enhanced media transmission quality indicator (eMDI) analyzer, the method comprising:
receiving transmission quality index data of a detected data stream collected and transmitted by an eMDI collector and storing the transmission quality index data in a storage space;
and adopting an eMDI algorithm to perform summary analysis on the transmission quality index data of the detected data stream.
2. The method of claim 1,
the detected data stream is a data stream with specified configuration parameters, and the configuration parameters are data streams with the same source and destination addresses or the same multicast group address.
3. The method of claim 1, further comprising:
collecting the transmission quality index data of the detected data stream locally and storing the data in a storage space;
the summarizing analysis is to comprehensively summarize and analyze the transmission quality index data of the detected data stream which is locally collected and stored in the storage space and the transmission quality index data of the detected data stream which is collected and transmitted by the eMDI collector.
4. The method of claim 1,
the eMDI collector is located on one or more different network nodes on a plurality of links through which the detected data stream flows, and the plurality of links are load sharing links or equivalent links.
5. An apparatus for detecting a media transmission quality indicator, the apparatus operating in an eMDI collector role, the apparatus comprising:
the acquisition module is used for acquiring transmission quality index data of the detected data stream;
a transmitting module for transmitting the collected transmission quality indicator data of the detected data stream to the eMDI analyzer.
6. An apparatus for media transmission quality indicator detection, the apparatus operating in an eMDI analyzer role, the apparatus comprising:
the receiving module is used for receiving the transmission quality index data of the detected data stream collected and transmitted by the eMDI collector and storing the transmission quality index data in a storage space;
the storage module is used for providing a read-write interface of a storage space;
and the analysis module is used for carrying out summary analysis on the transmission quality index data of the detected data stream by adopting an eMDI algorithm.
7. The apparatus of claim 6,
the detected data stream is a data stream with specified configuration parameters, and the configuration parameters are data streams with the same source and destination addresses or the same multicast group address.
8. The apparatus of claim 6, further comprising:
the acquisition module is used for locally acquiring the transmission quality index data of the detected data stream and storing the data in a storage space;
the analysis module comprehensively summarizes and analyzes the locally acquired transmission quality index data of the detected data stream stored in the storage space and the transmission quality index data of the detected data stream acquired and transmitted by the eMDI acquisition unit.
9. The apparatus of claim 6,
the device and the eMDI collector are located on one or more different network nodes on a plurality of links through which the detected data stream flows, and the plurality of links are load sharing links or equivalent links.
10. A storage medium on which a computer program is stored, which computer program, when being executed by a processor, carries out the functions of the method steps of any one of claims 1 to 4.
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