CN103067749A - Internet protocol television (IPTV) service quality monitoring method, device and video server - Google Patents
Internet protocol television (IPTV) service quality monitoring method, device and video server Download PDFInfo
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Abstract
The invention discloses an Internet protocol television (IPTV) service quality monitoring method, a device and a video server, and relates to the IPTV technical field. The method includes the step of monitoring the video quality index of IPTV business which comprises signaling flow and media flow by a built-in probe of the IPTV video server, wherein the built-in probe monitors the media flow at a streaming media socket interface of the IPTV video server, and the built-in probe monitors the signaling flow at a signaling interaction socket interface of the IPTV video server. By means of the built-in monitoring module, quality monitoring can be conducted on every route of media flow which is output by the IPTV video server. Video quality monitoring is used as a module of video service software, the consumption of server resources is low and can be controlled, and normal media streaming service is not influenced.
Description
Technical field
The present invention relates to IPTV (Internet Protocol Television, Web TV) service technique field, particularly a kind of IPTV quality of service monitoring method, device and video server.
Background technology
Professional end-to-end each link of IPTV comprises video server, core net, Access Network and set-top box etc., and end to end quality assurance needs each link is all realized quality-monitoring.The professional end-to-end quality monitoring of IPTV is that the important prerequisite that the user experiences is promoted, promoted to the IPTV scale.At present, realize for the general mode of external probe that adopts of IPTV video server Streaming Media output quality monitoring.Probe is to TS (the Transport Stream of video flowing, transport stream) encapsulation, packet loss, shake are monitored, main TR101-290 and RFC4445 MDI (the Media Delivery Index of adopting, the media transmission quality index) index requires index must drop in the rational scope.
Fig. 1 illustrates the video quality monitoring mode schematic diagram of the external probe of available technology adopting.As shown in Figure 1, the professional video flowing of IPTV that IPTV video server 11 is sent passes through network equipment port 12 mirror images or light splitting, copy to data acquisition equipment 13,13 pairs of video flowings of data acquisition equipment screen and stamp timestamp, video flowing after 14 pairs of screenings of monitoring probe carries out quality analysis, the quality index of paying close attention to comprises: RTSP (Real Time Streaming Protocol, real time streaming transport protocol) signaling tracing, stream rate (whether large shake is arranged), video packet loss etc., and the quality index after will analyzing reports IPTV quality of service analysis platform 15.
Because IPTV video server and video flowing quantity are huge, and the cost of external probe is expensive, and the implementation process of external probe complexity, therefore, limited making the overall arrangement for for the quality-monitoring of video source.
Summary of the invention
In view of above problem proposes the present invention.
An object of the present invention is to provide a kind of technical scheme for the monitoring of IPTV quality of service.
According to an aspect of the present invention, provide a kind of IPTV quality of service monitoring method, having comprised: the built-in probe by the IPTV video server is monitored the video quality index that comprises signaling flow and Media Stream of IPTV business; Wherein, built-in probe is at the Streaming Media Socket of IPTV video server (socket) interface monitor Media Stream; Built-in probe is at the Signalling exchange Socket of IPTV video server interface monitor signaling flow.
Preferably, built-in probe is also monitored the Streaming Media transmission buffer memory of IPTV video server.
Preferably, built-in probe comprises at the Streaming Media Socket of IPTV video server interface monitor Media Stream: built-in probe is in the MDI index of the Streaming Media Socket of IPTV video server interface monitoring video code stream rate, TS packet loss, TR101-290 index and RFC4445.
Preferably, built-in probe comprises at the Signalling exchange Socket of IPTV video server interface monitor signaling flow: built-in probe judges that by monitoring RTSP signalling interactive process and Signalling exchange time delay whether Signalling exchange is successful, judges whether to exist the Network Packet Loss phenomenon by the application layer retransmission instructions of monitoring from set-top box at the Signalling exchange Socket of IPTV video server interface.
Preferably, the monitoring mode of built-in probe comprises Real-Time Monitoring, off-line monitoring and monitoring alarm.
Preferably, the method also comprises: the Remote configuration of receiving alarm threshold value, monitored Video stream information.
According to another aspect of the present invention, a kind of IPTV quality of service monitoring device is provided, the configurable application between software and the network protocol stack in the IPTV server monitored the video quality index that comprises signaling flow and Media Stream of IPTV business, device comprises: the Media Stream monitoring modular is used at the Streaming Media Socket of IPTV video server interface monitor Media Stream; The signaling flow monitoring modular is used at the Signalling exchange Socket of IPTV video server interface monitor signaling flow.
Preferably, this device also comprises: the buffer memory monitoring modular is used for the Streaming Media transmission buffer memory of IPTV video server is monitored.
Preferably, the Media Stream monitoring modular can be in the MDI index of the Streaming Media Socket of IPTV video server interface monitoring video code stream rate, TS packet loss, TR101-290 index and RFC4445.
Preferably, the signaling flow monitoring modular can judge that by monitoring RTSP signalling interactive process and Signalling exchange time delay whether Signalling exchange is successful, judges whether to exist the Network Packet Loss phenomenon by the application layer retransmission instructions of monitoring from set-top box at the Signalling exchange Socket of IPTV video server interface.
Preferably, this device also comprises: the Remote configuration module, and for the Remote configuration of accepting alarm threshold, monitored Video stream information.
Another aspect of the present invention also provides a kind of IPTV video server, comprises above-mentioned IPTV quality of service monitoring device.
An advantage of the present invention is, by the built-in probe in the IPTV video server the professional video flow quality of IPTV is monitored, and can substitute external probe, greatly reduces the monitoring cost of IPTV video source.
By referring to the detailed description of accompanying drawing to exemplary embodiment of the present invention, it is clear that further feature of the present invention and advantage thereof will become.
Description of drawings
The accompanying drawing that consists of the part of specification has been described embodiments of the invention, and is used for explaining principle of the present invention together with the description.
With reference to accompanying drawing, according to following detailed description, can more be expressly understood the present invention, wherein:
Fig. 1 illustrates the video quality monitoring mode schematic diagram of the external probe of available technology adopting;
Fig. 2 illustrates and uses system schematic of the present invention;
Fig. 3 illustrates the flow chart of an embodiment of IPTV quality of service monitoring method of the present invention;
Fig. 4 illustrates the flow chart of another embodiment of IPTV quality of service monitoring method of the present invention;
Fig. 5 illustrates the structure chart of an embodiment of IPTV quality of service monitoring device of the present invention;
Fig. 6 illustrates the structure chart of another embodiment of IPTV quality of service monitoring device of the present invention.
Embodiment
Describe various exemplary embodiment of the present invention in detail now with reference to accompanying drawing.It should be noted that: unless specify in addition, the parts of setting forth in these embodiments and positioned opposite, numeral expression formula and the numerical value of step do not limit the scope of the invention.
Simultaneously, should be understood that for convenience of description that the size of the various piece shown in the accompanying drawing is not to draw according to the proportionate relationship of reality.
Below be illustrative to the description only actually of at least one exemplary embodiment, never as any restriction to the present invention and application or use.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in suitable situation, described technology, method and apparatus should be regarded as authorizing the part of specification.
In all examples with discussing shown here, it is exemplary that any occurrence should be construed as merely, rather than as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and the letter accompanying drawing below, therefore, in case be defined in a certain Xiang Zaiyi accompanying drawing, then in accompanying drawing subsequently, do not need it is further discussed.
Different from monitoring thinking of the prior art, the present invention monitors video flowing by the built-in stream media quality monitoring modular of IPTV video server (built-in probe).Fig. 2 illustrates to use system schematic of the present invention.As shown in Figure 2, monitor by 22 pairs of video flowings of built-in probe in the IPTV video server 11, monitoring index is sent to IPTV mass analysis stage 15.
Fig. 3 illustrates the flow chart of an embodiment of IPTV quality of service monitoring method of the present invention.
As shown in Figure 3, step 302 is monitored the video quality index that comprises signaling flow and Media Stream of IPTV business by the built-in probe of IPTV video server.
By built-in monitoring modular, can carry out quality-monitoring to each road video flowing of IPTV video server output.In above-described embodiment, by the built-in probe in the IPTV video server the professional video flow quality of IPTV is monitored, can substitute external probe, greatly reduce the monitoring cost of IPTV video source, remove the workload of engineering construction, probe maintenance from.
Built-in probe can comprise various ways to the monitoring of video flowing, such as real-time monitoring, off-line monitoring and monitoring alarm etc.For Real-Time Monitoring, the Real-Time Monitoring result is in time sent to mass analysis stage; For off-line monitoring, the Real-Time Monitoring outcome record in this locality, is regularly sent to mass analysis stage with local record information; For alarm-monitor, the Real-Time Monitoring outcome record in this locality, when surpassing threshold value, index is timely report and alarm information.In one embodiment, the priority of built-in probe is respectively from high to low: the video flowing of the video flowing of Real-Time Monitoring, the video flowing of alarm-monitor, off-line monitoring.When the IPTV video server is resource-constrained, can adopt off-line monitoring or alarm-monitor.
Fig. 4 illustrates the flow chart of another embodiment of IPTV quality of service monitoring method of the present invention.In this embodiment, built-in quality-monitoring module and the streaming media service software of IPTV video server are combined closely, be between application software and the network protocol stack, respectively Streaming Media Socket interface, signaling Socket interface and Streaming Media sent buffer memory and monitor.
As shown in Figure 4, step 402, at Streaming Media Socket interface, the IPTV video flowing is according to the set rate injection network.In the monitoring point of Streaming Media Socket interface, can monitor the MDI index of video code stream rate, TS packet loss, TR101-290 index and RFC4445.
Whether step 404 is monitored it to Streaming Media transmission buffer memory and is overflowed.The actual output speed of Streaming Media depends on network protocol stack, also need pay close attention to Streaming Media to the monitoring of Streaming Media and send the buffer memory situation, if Streaming Media sends cache overflow, illustrates that network throughput reduces.Underflow also is the foundation of judging whether video content is lost on the buffer memory, and external probe cannot be monitored.Whether exist buffer memory to overflow up and down by the position monitoring of monitoring video content in buffer memory.
The quality that the user experiences video quality can be divided into two classes, i.e. reliability (reliability) and comfort level (comfort).Reliability can be divided into again professional accessibility and professional integrality; Professional comfortableness can be divided into again professional instantaneity and service conversation quality.Wherein, service reliability depends on the availability of network, platform, unusual drop rate; The service request time delay depends on the response delay of network delay, platform and the time delay of terminal buffers; The definition of video playback depends on encoder, code rate, resolution and frame per second; The injury tolerance of video depends on the transmission means of Internet Transmission characteristic, Streaming Media.Therefore, in the aforementioned index, whether " the MDI index of TS packet loss, TR101-290 index and RFC4445 " monitoring video message is lost out the time from server, and whether the literary composition encapsulation is legal, and whether shake is excessive etc., and these affect video playing quality; " Streaming Media send buffer memory situation " mainly monitored video message and whether caused packet loss because network throughput descends, impact also be video playing quality; " RTSP reciprocal process whether normal, interaction time delay " these indexs reflections be professional availability, professional integrality and service request time delay.In above-described embodiment, built-in probe not only can substitute external probe, and monitoring can be expanded to more quality index, improves the accuracy of monitoring.
According to one embodiment of present invention, the video monitoring modular can be realized telemanagement, and for example the Remote configuration alarm threshold is perhaps specified monitored Video stream information, as, purpose IP address, program ID etc.
Fig. 5 illustrates the structure chart of an embodiment of IPTV quality of service monitoring device of the present invention.As shown in Figure 5, between the IPTV quality of service monitoring device 51 configurable application software and network protocol stack in the IPTV server, the video quality index that comprises signaling flow and Media Stream to the IPTV business is monitored, and device 51 comprises Media Stream monitoring modular 511, signaling flow monitoring modular 512; Alternatively, can also comprise buffer memory monitoring modular 513.Media Stream monitoring modular 511 is at the Streaming Media Socket of IPTV video server interface 52 monitoring Media Streams; Signaling flow monitoring modular 512 is at the described signaling flow of the Signalling exchange Socket of IPTV video server interface 53 monitorings.The Streaming Media of 513 pairs of IPTV video servers of buffer memory monitoring modular sends buffer memory 541 and monitors, and can also monitor signaling buffer memory 542.Media data in the buffer memory and signaling send to the user by ICP/IP protocol stack 55 and bottom-layer network 56.
In above-described embodiment, by the IPTV quality of service monitoring device in the IPTV video server the professional video flow quality of IPTV is monitored, can substitute external probe, greatly reduce the monitoring cost of IPTV video source, remove the workload of engineering construction, probe maintenance from.Not only can substitute external probe, and monitoring can be expanded to more quality index, improve the accuracy of monitoring.
Fig. 6 illustrates the structure chart of another embodiment of IPTV quality of service monitoring device of the present invention.As shown in Figure 6, this IPTV quality of service monitoring device comprises Media Stream monitoring modular 511, signaling flow monitoring modular 512, buffer memory monitoring modular 513 and Remote configuration module.Media Stream monitoring modular 511, signaling flow monitoring modular 512 and buffer memory monitoring modular 513 can be referring to the descriptions among Fig. 5 embodiment, for being not described in detail at this for purpose of brevity.Remote configuration module 614 is accepted the Remote configuration of alarm threshold, monitored Video stream information, according to configuration information Media Stream monitoring modular 511, signaling flow monitoring modular 512 and buffer memory monitoring modular 513 is configured and controls.
In one embodiment of the invention, the Media Stream monitoring modular can be in the MDI index of the Streaming Media Socket of described IPTV video server interface monitoring video code stream rate, TS packet loss, TR101-290 index and RFC4445.The signaling flow monitoring modular can judge that by monitoring RTSP signalling interactive process and Signalling exchange time delay whether Signalling exchange is successful, judges whether to exist the Network Packet Loss phenomenon by the application layer retransmission instructions of monitoring from set-top box at the Signalling exchange Socket of IPTV video server interface.
The embodiment of the invention is built in streaming media service quality-monitoring function in the IPTV video server, to realize the quality-monitoring to the IPTV video source.Compare with the video quality monitoring of external probe in the prior art, the mode of the built-in probe of the embodiment of the invention is built-in quality-monitoring module in video server directly, does not need light splitting and plug-in probe.The video quality monitoring is as a module of video server, and is low and controlled to the consumption of server resource, do not affect normal streaming media service.The video quality index of built-in quality-monitoring module monitors comprises Signalling exchange and Media Stream, and is more than the monitoring index of plug-in probe.Video server directly connects the IPTV mass analysis stage, carries out reporting of video quality index.
So far, described in detail according to stream media quality monitoring method of the present invention, device and video server.For fear of covering design of the present invention, details more known in the field are not described.Those skilled in the art can understand how to implement technical scheme disclosed herein fully according to top description.
The stream media quality monitoring device may be realized method and system of the present invention in many ways.For example, can realize method and system of the present invention by any combination of software, hardware, firmware or software, hardware, firmware.The said sequence that is used for the step of described method only is in order to describe, and the step of method of the present invention is not limited to above specifically described order, unless otherwise specify.In addition, in certain embodiments, can be the program that is recorded in the recording medium with the invention process also, these programs comprise for the machine readable instructions that realizes the method according to this invention.Thereby the present invention also covers the recording medium that storage is used for the program of executive basis method of the present invention.
Although by example specific embodiments more of the present invention are had been described in detail, it should be appreciated by those skilled in the art that above example only is in order to describe, rather than in order to limit the scope of the invention.It should be appreciated by those skilled in the art, can in situation about not departing from the scope of the present invention with spirit, above embodiment be made amendment.Scope of the present invention is limited by claims.
Claims (12)
1. an IPTV quality of service monitoring method is characterized in that, comprising:
Built-in probe by the IPTV video server is monitored the video quality index that comprises signaling flow and Media Stream of IPTV business;
Wherein,
Described built-in probe is at the described Media Stream of Streaming Media socket Socket interface monitor of described IPTV video server;
Described built-in probe is at the described signaling flow of the Signalling exchange Socket of described IPTV video server interface monitor.
2. method according to claim 1 is characterized in that, described built-in probe is also monitored the Streaming Media transmission buffer memory of described IPTV video server.
3. method according to claim 1 is characterized in that, described built-in probe comprises at the described Media Stream of the Streaming Media Socket of described IPTV video server interface monitor:
Described built-in probe is in the MDI index of the Streaming Media Socket of described IPTV video server interface monitoring video code stream rate, TS packet loss, TR101-290 index and RFC4445.
4. method according to claim 1 is characterized in that, described built-in probe comprises at the described signaling flow of the Signalling exchange Socket of described IPTV video server interface monitor:
Described built-in probe judges that by monitoring RTSP signalling interactive process and Signalling exchange time delay whether Signalling exchange is successful, judges whether to exist the Network Packet Loss phenomenon by the application layer retransmission instructions of monitoring from set-top box at the Signalling exchange Socket of described IPTV video server interface.
5. method according to claim 1 is characterized in that, the monitoring mode of described built-in probe comprises Real-Time Monitoring, off-line monitoring and monitoring alarm.
6. method according to claim 1 is characterized in that, also comprises:
The Remote configuration of receiving alarm threshold value, monitored Video stream information.
7. an IPTV quality of service monitoring device is characterized in that, the configurable application between software and the network protocol stack in the IPTV server monitored the video quality index that comprises signaling flow and Media Stream of IPTV business, and described device comprises:
The Media Stream monitoring modular is used at the described Media Stream of the Streaming Media Socket of described IPTV video server interface monitor;
The signaling flow monitoring modular is used at the described signaling flow of the Signalling exchange Socket of described IPTV video server interface monitor.
8. device according to claim 7 is characterized in that, also comprises:
The buffer memory monitoring modular is used for the Streaming Media transmission buffer memory of described IPTV video server is monitored.
9. device according to claim 7, it is characterized in that described Media Stream monitoring modular can be in the MDI index of the Streaming Media Socket of described IPTV video server interface monitoring video code stream rate, TS packet loss, TR101-290 index and RFC4445.
10. device according to claim 7, it is characterized in that, described signaling flow monitoring modular can judge that by monitoring RTSP signalling interactive process and Signalling exchange time delay whether Signalling exchange is successful, judges whether to exist the Network Packet Loss phenomenon by the application layer retransmission instructions of monitoring from set-top box at the Signalling exchange Socket of described IPTV video server interface.
11. device according to claim 7 is characterized in that, also comprises:
The Remote configuration module is for the Remote configuration of accepting alarm threshold, monitored Video stream information.
12. an IPTV video server is characterized in that, comprises the described IPTV quality of service of any one monitoring device in the claim 7 to 11.
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| CN112653887B (en) * | 2020-12-14 | 2023-03-10 | 中国联合网络通信集团有限公司 | Video diagnosis method and device |
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